:root{
  --ink:#15181d;--ink-2:#232730;--ink-soft:#e9eaee;
  --amber:#f0a500;--amber-dark:#c98700;--amber-soft:#fff3d6;
  --blue:#2f6fed;--blue-dark:#1f54c4;--blue-soft:#e6eefc;
  --green:#2f9e6e;--green-soft:#e3f5ec;
  --bg:#f6f6f4;--card:#ffffff;--line:#e3e4e8;
  --text:#1b1f27;--muted:#5b6170;
  --radius:16px;--shadow:0 10px 30px rgba(21,24,29,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Poppins",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--amber-dark)}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--text)}
h1{font-size:2.5rem}h2{font-size:1.9rem}h3{font-size:1.2rem}
p{margin-bottom:1rem}
code{font-family:Menlo,Consolas,monospace;background:var(--ink-soft);padding:.1em .4em;border-radius:6px;font-size:.92em;color:var(--ink)}
pre{max-width:100%;background:var(--ink);color:#eef0f5;padding:18px 20px;border-radius:12px;overflow-x:auto;margin:0 0 1.2rem;font-size:.9rem;line-height:1.6}
pre code{background:none;color:inherit;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-head{max-width:720px;margin:0 auto 40px;text-align:center}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);margin:0}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-dark);margin-bottom:10px}
.eyebrow.light{color:var(--amber)}
.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.note{color:var(--muted);font-size:.92rem;margin:16px 0 0;text-align:center}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(246,246,244,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.3rem;color:var(--ink)}
.brand img{width:44px;height:44px;border-radius:50%}
.brand:hover{color:var(--ink)}
.menu{display:flex;align-items:center;gap:26px;list-style:none}
.menu a{font-weight:500;color:var(--text);font-size:.95rem}
.menu a:hover,.menu a.active{color:var(--amber-dark)}
.nav-right{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;border:2px solid transparent;transition:.2s;cursor:pointer;line-height:1.2}
.btn-primary{background:var(--amber);color:var(--ink);box-shadow:0 8px 20px rgba(240,165,0,.35)}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2);color:#fff}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-light:hover{background:#fff;color:var(--ink)}
.btn-lg{padding:16px 30px;font-size:1.05rem}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.burger span{display:block;width:26px;height:3px;background:var(--ink);border-radius:3px}

/* hero with background image */
.hero{position:relative;padding:120px 0 110px;color:#fff;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(21,24,29,.9) 0%,rgba(21,24,29,.72) 50%,rgba(21,24,29,.3) 100%)}
.hero-inner{position:relative;z-index:1}
.hero-content{max-width:680px}
.hero h1{color:#fff;margin-bottom:18px;font-size:2.8rem}
.hero p.lead{font-size:1.08rem;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-meta{list-style:none;display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;font-size:.92rem;color:rgba(255,255,255,.85)}
.hero-meta li{display:flex;align-items:center;gap:8px}
.hero-meta svg{color:var(--amber)}

/* page hero (guide index) */
.page-hero{padding:70px 0 10px}
.page-hero h1{margin-bottom:12px}
.page-hero .lead{color:var(--muted);max-width:760px;font-size:1.05rem}

/* grids & cards */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(21,24,29,.1)}
.card h3{margin:14px 0 8px}
.card p{color:var(--muted);margin:0;font-size:.95rem}
.icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--amber-soft);color:var(--amber-dark)}
.icon svg{width:26px;height:26px}
.icon.m{background:var(--blue-soft);color:var(--blue)}
.icon.p{background:var(--ink-soft);color:var(--ink)}
.icon.c{background:var(--green-soft);color:var(--green)}
.stat{text-align:center;padding:24px 16px}
.stat strong{display:block;font-size:2.2rem;color:var(--ink);line-height:1.1}
.stat span{color:var(--muted);font-size:.92rem}
.about-grid{align-items:center;gap:48px}
.about-text p{color:var(--muted)}
.about-text p strong{color:var(--text)}
.stats{gap:18px}

/* steps */
.step{display:flex;gap:20px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:16px;box-shadow:var(--shadow)}
.step .icon{flex:none}
.step h3{margin:0 0 6px}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:600px}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--ink);color:#fff;font-weight:600}
td:first-child{font-weight:600;white-space:nowrap}
tr:last-child td{border-bottom:0}

/* download */
.download-box{background:linear-gradient(135deg,var(--ink) 0%,#2a2f3a 60%,#3a2f10 140%);color:#fff;border-radius:24px;padding:54px;display:grid;grid-template-columns:1.3fr 1fr;gap:30px;align-items:center;box-shadow:0 30px 60px rgba(21,24,29,.25)}
.download-box h2,.download-box p{color:#fff}
.download-box p{opacity:.9;margin-bottom:0}
.download-box a{color:var(--amber)}
.download-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:20px;font-size:.9rem;opacity:.9}
.download-meta span{display:flex;align-items:center;gap:7px}
.download-cta{text-align:center}
.download-cta .btn{background:var(--amber);color:var(--ink);box-shadow:0 10px 30px rgba(240,165,0,.35)}
.download-cta .btn:hover{background:#fff;color:var(--ink)}
.download-cta small{display:block;margin-top:12px;opacity:.8;font-size:.85rem}

/* guide cards */
.post{overflow:hidden;padding:0;display:flex;flex-direction:column}
.post>a{display:block;line-height:0}
.post img{aspect-ratio:16/9;object-fit:cover;width:100%;height:auto}
.post .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1}
.post .tag{font-size:.76rem;font-weight:600;color:var(--amber-dark);text-transform:uppercase;letter-spacing:.08em}
.post h3{margin:0;font-size:1.1rem}
.post h3 a{color:var(--text)}
.post h3 a:hover{color:var(--amber-dark)}
.post p{margin:0;color:var(--muted);font-size:.93rem;flex:1}
.post .more{font-weight:600;font-size:.92rem;margin-top:6px;display:inline-flex;align-items:center;gap:6px;color:var(--ink)}
.post .more:hover{color:var(--amber-dark)}
.center{text-align:center;margin-top:36px}

/* faq */
.faq{width:100%}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow)}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:20px 24px;font-family:inherit;font-size:1.02rem;font-weight:600;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer}
.faq-q .chev{flex:none;width:30px;height:30px;border-radius:50%;background:var(--ink-soft);color:var(--ink);display:flex;align-items:center;justify-content:center;transition:.25s}
.faq-item.open .faq-q .chev{transform:rotate(180deg);background:var(--amber);color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--muted);padding:0 24px}
.faq-item.open .faq-a{padding-bottom:20px}
.faq-a p{margin:0}

/* article */
.article-hero{padding:60px 0 30px}
.article-hero .crumb{display:inline-flex;align-items:center;gap:6px;font-size:.9rem;color:var(--muted);margin-bottom:14px}
.article-hero .crumb svg{transform:rotate(180deg)}
.article-hero .eyebrow{display:block}
.article-hero img{border-radius:20px;box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:cover;width:100%;margin-top:26px}
.article{width:100%;padding-bottom:70px;max-width:860px;margin:0 auto}
.article h2{font-size:1.5rem;margin:34px 0 12px}
.article h3{margin:24px 0 8px}
.article ul,.article ol{margin:0 0 1rem 1.3rem}
.article li{margin-bottom:6px}
.article .table-wrap{margin:0 0 1.2rem}
.meta{color:var(--muted);font-size:.9rem;margin-top:8px}
.callout{background:var(--amber-soft);border-left:4px solid var(--amber);padding:16px 20px;border-radius:0 12px 12px 0;margin:0 0 1.2rem}
.callout p{margin:0}
.legal{width:100%;padding:60px 0 80px;max-width:860px;margin:0 auto}
.legal h1{margin-bottom:8px}
.legal h2{font-size:1.35rem;margin:30px 0 10px}
.legal ul{margin:0 0 1rem 1.3rem}
.legal .table-wrap{margin:0 0 1.2rem}
.contact-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;margin-top:20px;box-shadow:var(--shadow)}
.contact-box .mail{font-size:1.35rem;font-weight:600;color:var(--ink);margin:8px 0 0;word-break:break-all}
.contact-box .small{margin:10px 0 0;color:var(--muted);font-size:.93rem}

/* footer */
.footer{background:#eeeeeb;border-top:1px solid var(--line);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:40px}
.footer h4{font-size:1.1rem;margin-bottom:16px}
.footer ul{list-style:none}
.footer li{margin-bottom:10px}
.footer li a{color:var(--muted)}
.footer li a:hover{color:var(--amber-dark)}
.footer .brand{margin-bottom:14px}
.footer .about{color:var(--muted);font-size:.95rem}
.footer-bottom{border-top:1px solid var(--line);margin-top:50px;padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.92rem}
.footer-bottom strong{color:var(--text)}
.footer-bottom a:hover strong{color:var(--amber-dark)}
#toTop{position:fixed;right:24px;bottom:24px;width:54px;height:54px;border-radius:50%;background:var(--ink);color:#fff;border:0;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 30px rgba(21,24,29,.35);opacity:0;visibility:hidden;transition:.25s;z-index:60}
#toTop.show{opacity:1;visibility:visible}
#toTop:hover{background:var(--amber);color:var(--ink)}
#toTop svg{width:22px;height:22px}

/* responsive */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .download-box{grid-template-columns:1fr;padding:36px}
  h1{font-size:2.1rem}.hero h1{font-size:2.3rem}h2{font-size:1.6rem}
}
@media (max-width:900px){
  .burger{display:flex}
  .menu{position:absolute;left:0;right:0;top:74px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 16px;border-bottom:1px solid var(--line);display:none;box-shadow:0 20px 40px rgba(21,24,29,.12)}
  .menu.open{display:flex}
  .menu li a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  .nav .btn{padding:10px 16px;font-size:.88rem}
  .hero{padding:80px 0 70px}
  .hero-bg::after{background:linear-gradient(180deg,rgba(21,24,29,.9) 0%,rgba(21,24,29,.8) 100%)}
  .about-grid{grid-template-columns:1fr}
  .about-grid .about-text{order:0}
  .about-grid .stats{order:1}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .step{flex-direction:column;align-items:stretch}
  .card{padding:22px}
  .nav .btn span{display:none}
  .nav .btn{padding:10px 12px}
  .brand{font-size:1.1rem}
  h1{font-size:1.8rem}.hero h1{font-size:1.9rem}
  .hero{padding:60px 0 56px}
  .hero-actions .btn{width:100%;justify-content:center}
  #toTop{right:16px;bottom:16px;width:48px;height:48px}
}