:root{
  --red:#A81D35;--red-dark:#8A1429;--red-soft:#F8E6E9;
  --ink:#1F1A2E;--ink-2:#3B3550;--muted:#6B6578;
  --bg:#FFFAF8;--card:#FFFFFF;--line:#EEDFDC;--sand:#F6ECE8;
  --green:#2E8B6A;--amber:#E3A72F;--blue:#3C6FD8;
  --radius:16px;--shadow:0 10px 30px rgba(31,26,46,.08);
  --container:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Poppins',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img,svg{max-width:100%;display:block}
a{color:var(--red);text-decoration:none}
a:hover{color:var(--red-dark)}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--ink)}
h1{font-size:clamp(1.9rem,4vw,2.9rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.15rem}
p{margin-bottom:1rem;color:var(--ink-2)}
ul,ol{padding-left:1.3rem;color:var(--ink-2);margin-bottom:1rem}
li{margin-bottom:.4rem}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
section{padding:72px 0}
.section-head{max-width:720px;margin:0 auto 40px;text-align:center}
.section-head p{margin-top:10px}
.eyebrow{display:inline-block;color:var(--red);font-weight:600;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom: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;cursor:pointer;transition:.2s;font-family:inherit}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:var(--red);color:var(--red);background:transparent}
.btn-outline:hover{background:var(--red-soft)}
.btn-ghost{background:var(--sand);color:var(--ink)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,248,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.3rem;color:var(--red)}
.brand img{width:40px;height:40px;border-radius:10px;object-fit:contain}
.nav-links{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-weight:500;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:var(--red)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}

/* hero */
.hero{padding:70px 0 60px;background:linear-gradient(180deg,#FFF4F1 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1 span{color:var(--red)}
.hero .lead{font-size:1.08rem;max-width:560px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.hero-img{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff;aspect-ratio:4/3}
.hero-img img{width:100%;height:100%;object-fit:cover}
.hero-stats{display:flex;gap:28px;margin-top:28px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-size:1.3rem;color:var(--red)}
.hero-stats div span{font-size:.85rem;color:var(--muted)}

/* 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:0 4px 16px rgba(31,26,46,.04);transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card h3{margin:14px 0 8px}
.card p{margin:0;font-size:.95rem}
.icon{width:48px;height:48px;border-radius:12px;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center}
.icon svg{width:24px;height:24px}
.steps{counter-reset:step}
.step{position:relative;display:flex;gap:18px;align-items:flex-start}
.step .icon{flex:none}
.step .num{position:absolute;right:18px;top:16px;font-weight:700;font-size:2rem;color:var(--line)}

/* alt section backgrounds */
.alt{background:var(--sand)}
.dark{background:var(--ink);color:#fff}
.dark h2,.dark h3{color:#fff}
.dark p{color:#D8D3E0}
.dark .card{background:#2A2440;border-color:#3B3550}
.dark .card p{color:#C9C3D6}
.dark .icon{background:rgba(255,255,255,.08);color:#FFB3BF}

/* tool */
.tool-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.tool-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.tool-panel h3{margin-bottom:6px}
.tool-row{display:grid;grid-template-columns:1fr 110px 110px 40px;gap:10px;align-items:center;margin-bottom:10px}
.tool-row input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:.92rem;color:var(--ink);background:#FFFCFB}
.tool-row input:focus{outline:2px solid var(--red-soft);border-color:var(--red)}
.tool-row .rm{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--muted);font-size:1.1rem}
.tool-labels{display:grid;grid-template-columns:1fr 110px 110px 40px;gap:10px;font-size:.78rem;color:var(--muted);font-weight:600;margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.result{background:var(--ink);color:#fff;border-radius:20px;padding:28px}
.result h3{color:#fff;margin-bottom:16px}
.result .big{font-size:3rem;font-weight:700;line-height:1;color:#FFB3BF}
.result .label{font-size:.85rem;color:#C9C3D6;margin-top:4px}
.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}
.result-grid div{background:rgba(255,255,255,.06);border-radius:12px;padding:14px}
.result-grid strong{display:block;font-size:1.3rem;color:#fff}
.result-grid span{font-size:.8rem;color:#C9C3D6}
.band{display:inline-block;padding:6px 14px;border-radius:999px;font-weight:600;font-size:.9rem;background:var(--red);color:#fff;margin-top:6px}
.target{margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
.target label{display:block;font-size:.85rem;color:#C9C3D6;margin-bottom:6px}
.target select{padding:9px 12px;border-radius:10px;border:none;font:inherit;width:100%;background:#fff;color:var(--ink)}
.target p{color:#E6E1EE;margin:10px 0 0;font-size:.92rem}
.tool-note{font-size:.85rem;color:var(--muted);margin-top:12px}

/* platforms */
.platform{display:flex;gap:16px;align-items:flex-start}
.platform .icon{flex:none}

/* guide cards */
.post-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.post-card img{aspect-ratio:4/3;object-fit:cover;width:100%;height:auto}
.post-card .body{padding:22px}
.post-card .body h3{margin:0 0 8px;font-size:1.05rem}
.post-card .meta{font-size:.8rem;color:var(--muted);margin-bottom:8px;display:block}
.post-card .more{font-weight:600;font-size:.9rem;margin-top:12px;display:inline-block}

/* faq */
.faq{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 54px 18px 22px;font:inherit;font-weight:600;font-size:1rem;color:var(--ink);cursor:pointer;position:relative}
.faq-q::after{content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;border-right:2px solid var(--red);border-bottom:2px solid var(--red);transform:translateY(-70%) rotate(45deg);transition:.25s}
.faq-item.open .faq-q::after{transform:translateY(-30%) rotate(-135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 22px}
.faq-a p{padding-bottom:18px;margin:0;font-size:.95rem}
.faq-item.open .faq-a{max-height:400px}

/* article / page */
.page-hero{padding:60px 0 30px}
.page-hero h1{margin-bottom:10px}
.article{max-width:820px;margin:0 auto}
.article img.cover{width:100%;height:auto;border-radius:20px;box-shadow:var(--shadow);margin:20px 0 30px}
.article h2{margin:34px 0 12px;font-size:1.5rem}
.article h3{margin:24px 0 8px}
.article .box{background:var(--sand);border-left:4px solid var(--red);border-radius:12px;padding:18px 20px;margin:20px 0}
.article .box p{margin:0}
.legal{max-width:820px;margin:0 auto}
.legal h2{margin:30px 0 10px;font-size:1.35rem}
.updated{color:var(--muted);font-size:.9rem}
.related{margin-top:50px;padding-top:30px;border-top:1px solid var(--line)}
.related h3{margin-bottom:16px}

/* footer */
.site-footer{background:#F7EFEC;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1.2fr 1fr;gap:40px}
.site-footer h4{margin-bottom:16px;font-size:1.05rem}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:var(--ink-2);font-size:.95rem}
.site-footer a:hover{color:var(--red)}
.site-footer .brand{margin-bottom:14px}
.site-footer .about{font-size:.95rem}
.footer-bottom{border-top:1px solid var(--line);margin-top:48px;padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:.92rem;color:var(--ink-2)}
.footer-bottom a{color:var(--ink);font-weight:600}
#toTop{position:fixed;right:22px;bottom:22px;width:52px;height:52px;border-radius:50%;background:var(--red);color:#fff;border:none;cursor:pointer;box-shadow:0 8px 24px rgba(168,29,53,.35);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s;z-index:60}
#toTop.show{opacity:1;visibility:visible}
#toTop:hover{background:var(--red-dark)}

/* responsive */
@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .tool-wrap{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav-links{position:absolute;left:0;right:0;top:74px;background:#fff;flex-direction:column;gap:0;padding:10px 20px 16px;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links li{padding:10px 0;border-bottom:1px solid var(--line)}
  .nav-links li:last-child{border:none}
  .nav-toggle{display:flex}
  .nav-cta .btn{padding:10px 16px;font-size:.85rem}
  .hero-grid{grid-template-columns:1fr}
  .hero-img{order:2}
  .hero-copy{order:1}
}
@media (max-width:600px){
  section{padding:54px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .tool-row,.tool-labels{grid-template-columns:1fr 70px 70px 32px;gap:6px}
  .tool-row input{padding:9px 8px;font-size:.85rem}
  .result-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:center;text-align:center}
  .card{padding:22px}
  .nav-cta .btn span{display:none}
}