:root{
  --ink:#10332c; --ink-2:#1d4a40; --teal:#12806a; --teal-2:#0e6b58; --teal-soft:#e3f1ec;
  --sun:#f0a92b; --sun-2:#f7c76a; --sun-soft:#fdf2dc; --bg:#f7f6f1; --card:#fff;
  --muted:#5b6b66; --line:#dfe2da; --radius:18px; --shadow:0 10px 30px rgba(16,51,44,.10);
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Inter","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px}
img,svg{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(247,246,241,.88);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.hdr.scrolled{border-bottom-color:var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.14em;color:var(--ink);font-size:18px}
.logo:hover{text-decoration:none}
.logo .dot{width:14px;height:14px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 5px rgba(240,169,43,.18)}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink);font-weight:500;font-size:15px}
.nav a.lang{font-weight:700;color:var(--teal);border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 22px;font-weight:700;font-size:15.5px;border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;font-family:inherit}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-sun{background:var(--sun);color:var(--ink);box-shadow:0 8px 22px rgba(240,169,43,.35)}
.btn-sun:hover{background:#f4b23f}
.btn-ghost{border-color:currentColor;color:var(--ink);background:transparent}
.btn-dark{background:var(--ink);color:#fff}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* hero */
.hero{padding:56px 0 40px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--sun-soft);color:#8a5a00;font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;letter-spacing:.02em}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.06;letter-spacing:-.02em;margin:18px 0 18px;font-weight:800}
h1 em{font-style:normal;color:var(--teal)}
.lead{font-size:19px;color:var(--muted);max-width:560px}
.lead b{color:var(--ink)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.ticks{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;list-style:none}
.ticks li{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px}
.ticks svg{width:20px;height:20px;flex:none}
.hero-art{position:relative}
.hero-art svg{width:100%;height:auto}
.sun-pulse{animation:pulse 5s ease-in-out infinite;transform-origin:center}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(1)}50%{opacity:.6;transform:scale(1.06)}}
.flow{stroke-dasharray:8 10;animation:flow 1.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-36}}
@media (prefers-reduced-motion:reduce){.sun-pulse,.flow{animation:none}}

/* stats */
.stats{background:var(--ink);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:34px;padding-bottom:34px}
.stat b{display:block;font-size:34px;line-height:1.1;color:var(--sun);font-weight:800}
.stat span{color:#cfe3dc;font-size:15px}

/* sections */
section{padding:84px 0}
.sec-head{max-width:760px;margin-bottom:42px}
.kicker{color:var(--teal);font-weight:800;letter-spacing:.12em;font-size:13px;text-transform:uppercase}
h2{font-size:clamp(28px,3.2vw,42px);line-height:1.12;letter-spacing:-.015em;margin:10px 0 14px;font-weight:800}
.sec-head p{color:var(--muted);font-size:18px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card h3{font-size:20px;margin:14px 0 8px;line-height:1.25}
.card p{color:var(--muted);font-size:15.5px}
.ico{width:48px;height:48px;border-radius:14px;background:var(--teal-soft);display:grid;place-items:center}
.ico svg{width:26px;height:26px}
.step-n{font-size:13px;font-weight:800;color:#fff;background:var(--teal);border-radius:8px;padding:3px 9px;letter-spacing:.08em}
.alt{background:#fff}

/* problem */
.compare{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.bar-row{margin:18px 0}
.bar-row .lbl{display:flex;justify-content:space-between;font-weight:600;font-size:15px;margin-bottom:6px}
.bar{height:22px;border-radius:999px;background:#eef0ea;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px}
.note{font-size:13px;color:var(--muted);margin-top:12px}
.daycurve{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}

/* segments */
.seg{display:flex;gap:16px;align-items:flex-start}
.seg .ico{flex:none}
.qual{background:var(--teal-soft);border:1px solid #c6e3d8;border-radius:var(--radius);padding:28px;margin-top:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.qual div b{display:block;font-size:20px}
.qual div span{color:var(--muted);font-size:14.5px}

/* quiz */
.quiz{background:var(--ink);color:#fff;border-radius:26px;padding:44px;display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.quiz h2{color:#fff}
.quiz p{color:#cfe3dc}
.q{margin-bottom:18px}
.q legend{font-weight:700;margin-bottom:8px}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opts label{cursor:pointer}
.opts input{position:absolute;opacity:0;pointer-events:none}
.opts span{display:inline-block;padding:9px 14px;border:1px solid #3e6a5f;border-radius:999px;font-size:14.5px;transition:all .15s}
.opts input:checked+span{background:var(--sun);border-color:var(--sun);color:var(--ink);font-weight:700}
.opts input:focus-visible+span{outline:2px solid var(--sun-2);outline-offset:2px}
.result{margin-top:18px;border-radius:16px;padding:18px 20px;background:rgba(255,255,255,.07);border:1px solid #3e6a5f;display:none}
.result.show{display:block}
.result b{color:var(--sun)}

/* options */
.opt{position:relative;display:flex;flex-direction:column}
.opt .term{font-size:34px;font-weight:800;margin:10px 0 2px}
.opt .disc{color:var(--teal);font-weight:800;margin-bottom:12px}
.opt ul{list-style:none;margin-top:auto}
.opt li{position:relative;padding:6px 0 6px 26px;font-size:15.5px}
.opt li::before{content:"";position:absolute;left:0;top:13px;width:12px;height:12px;border-radius:50%;background:var(--teal)}
.opt.rec{border:2px solid var(--sun);box-shadow:var(--shadow)}
.badge{position:absolute;top:-13px;left:24px;background:var(--sun);color:var(--ink);font-weight:800;font-size:12px;letter-spacing:.08em;padding:4px 10px;border-radius:999px}
.tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--muted)}

/* table */
.tbl{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.tbl th,.tbl td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:15.5px;vertical-align:top}
.tbl th{background:var(--ink);color:#fff;font-size:14px;letter-spacing:.04em}
.tbl td:nth-child(3){background:#f3faf6;font-weight:600}
.tbl tr:last-child td{border-bottom:0}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;line-height:1;color:var(--teal)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding:0 0 18px}

/* contact */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:block;font-weight:600;font-size:14px;margin:12px 0 6px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font:inherit;font-size:15.5px;background:#fbfbf9}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--teal);border-color:var(--teal)}
.form .btn{width:100%;margin-top:18px}
.form small{display:block;color:var(--muted);margin-top:10px;font-size:13px}
.checklist{list-style:none;margin-top:18px}
.checklist li{display:flex;gap:10px;padding:7px 0}
.checklist svg{width:22px;height:22px;flex:none;margin-top:2px}

/* footer */
.ftr{background:var(--ink);color:#cfe3dc;padding:48px 0 32px;font-size:14.5px}
.ftr .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.ftr a{color:#fff}
.ftr .logo{color:#fff}
.ftr small{display:block;margin-top:26px;color:#8fb0a6;grid-column:1/-1;border-top:1px solid #2c5249;padding-top:18px}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* responsive */
@media (max-width:1000px){
  .hero .wrap,.quiz,.contact,.grid2{grid-template-columns:1fr}
  .grid4,.qual{grid-template-columns:1fr 1fr}
  .grid3{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .ftr .wrap{grid-template-columns:1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  section{padding:60px 0}
  .wrap{padding:0 16px}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg);flex-direction:column;align-items:flex-start;padding:18px 16px;border-bottom:1px solid var(--line);gap:16px}
  .nav.open{display:flex}
  .burger{display:block}
  .hdr .btn-sun{display:none}
  .grid4,.qual,.form .row{grid-template-columns:1fr}
  .quiz{padding:28px 20px}
  .tbl th,.tbl td{padding:12px;font-size:14px}
}

/* lead form result */
.lead-result{margin-top:16px;border:1px solid var(--line);border-left:4px solid var(--sun);border-radius:14px;padding:16px 18px;background:#fffdf6;font-size:15px}
.lead-result.ok{border-left-color:var(--teal);background:#f3faf6}
.lead-result p{margin-top:8px;color:var(--muted)}
.lead-result .lr-btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.lead-result .lr-btns .btn{width:auto;margin:0;padding:9px 16px;font-size:14px}
.lead-result pre{margin-top:10px;white-space:pre-wrap;font:13px/1.5 Consolas,monospace;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;max-height:180px;overflow:auto}