:root{
  --ink:#13212e; --muted:#5b6b7a; --line:#e3e9ef; --bg:#ffffff; --soft:#f5f8fb;
  --brand:#0b6b5e; --brand-d:#085349; --accent:#f3a712; --radius:14px; --wrap:1080px;
  --shadow:0 6px 28px rgba(16,40,60,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;margin:0 0 .4em}
a{color:var(--brand);text-decoration:none}
b{font-weight:700}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-weight:800;font-size:1.15rem;color:var(--ink)}
.brand span{font-weight:500;color:var(--muted);font-size:.85rem}
.nav nav{display:flex;align-items:center;gap:22px}
.nav nav a{color:var(--muted);font-weight:600;font-size:.93rem}
.nav nav a:hover{color:var(--ink)}

/* buttons */
.btn{display:inline-block;background:var(--brand);color:#fff;border:none;padding:11px 20px;border-radius:10px;font-weight:700;font-size:.95rem;cursor:pointer;transition:.15s}
.btn:hover{background:var(--brand-d)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-lg{padding:15px 28px;font-size:1.05rem}
.btn-sm{padding:8px 16px;font-size:.88rem}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--line)}
.btn-ghost:hover{background:var(--soft);border-color:var(--brand)}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center;padding:70px 20px 50px}
.kicker{color:var(--brand);font-weight:800;letter-spacing:.06em;font-size:.8rem;text-transform:uppercase;margin:0 0 12px}
.hero h1{font-size:2.5rem;letter-spacing:-.02em}
.hero h1 b{color:var(--brand)}
.sub{font-size:1.12rem;color:var(--muted);margin:18px 0 26px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.trust-line{margin-top:22px;font-size:.85rem;color:var(--muted)}
.hero-card .chatcard{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.msg{padding:11px 15px;border-radius:13px;font-size:.93rem;max-width:88%}
.msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.user{background:var(--brand);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}

/* strip */
.strip{background:var(--ink);color:#fff}
.strip-inner{display:flex;justify-content:space-around;flex-wrap:wrap;gap:18px;padding:24px 20px;text-align:center}
.strip b{display:block;font-size:1.5rem;color:var(--accent)}
.strip span{font-size:.82rem;color:#aebccb}

/* sections */
.section{padding:64px 20px}
.section.alt{background:var(--soft)}
.section h2{font-size:1.9rem;text-align:center;letter-spacing:-.01em}
.lead{text-align:center;color:var(--muted);font-size:1.08rem;max-width:680px;margin:0 auto 36px}

/* steps */
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:920px;margin:0 auto}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.steps span{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:50%;font-weight:800;margin-bottom:12px}
.steps b{display:block;font-size:1.1rem;margin-bottom:6px}
.steps p{color:var(--muted);font-size:.95rem;margin:0}
.guide-link{display:block;text-align:center;margin-top:30px;font-weight:700}

/* why cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:980px;margin:0 auto}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{font-size:1.08rem;color:var(--brand-d)}
.card p{color:var(--muted);font-size:.94rem;margin:0}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:980px;margin:0 auto}
.tier{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;text-align:center;position:relative}
.tier.feat{border-color:var(--brand);box-shadow:var(--shadow)}
.tier h3{font-size:1.05rem;margin-bottom:2px}
.tier .form{color:var(--muted);font-size:.82rem;font-weight:700;letter-spacing:.04em;margin:0 0 10px}
.tier .price{font-size:2rem;font-weight:800;color:var(--brand);margin:0 0 12px}
.tier .desc{font-size:.9rem;color:var(--muted);margin:0}
.tier .badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--accent);color:#3a2a00;font-size:.72rem;font-weight:800;padding:4px 12px;border-radius:20px}
.addon{text-align:center;max-width:640px;margin:28px auto 0;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:16px}

/* quiz */
.quiz{max-width:640px;margin:0 auto}
.qprog{text-align:center;color:var(--muted);font-size:.85rem;font-weight:700;margin-bottom:12px}
.qbox{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.qtext{font-size:1.25rem;margin-bottom:18px}
.qopts{display:flex;flex-direction:column;gap:10px}
.qopt{text-align:left;background:var(--soft);border:1.5px solid var(--line);border-radius:10px;padding:13px 16px;font-size:.97rem;cursor:pointer;transition:.12s;color:var(--ink)}
.qopt:hover{border-color:var(--brand)}
.qopt.sel{border-color:var(--brand);background:#e8f4f1;font-weight:700}
.qnav{display:flex;justify-content:space-between;align-items:center;margin-top:22px}

/* result */
.result{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);text-align:center}
.result.out{border-color:var(--accent)}
.rkicker{color:var(--brand);font-weight:800;text-transform:uppercase;font-size:.78rem;letter-spacing:.06em;margin:0}
.result h3{font-size:1.7rem}
.rcheck{text-align:left;background:var(--soft);border-radius:10px;padding:16px 20px;margin:18px 0}
.rcheck ul{margin:8px 0 0;padding-left:20px;color:var(--muted)}
.rcheck li{margin:4px 0}
.honesty{background:#fff7e6;border:1px solid #ffe2a8;border-radius:10px;padding:14px 16px;font-size:.92rem;text-align:left;margin:14px 0}
.soon-box{background:#e8f4f1;border:1px solid #b9ddd5;border-radius:10px;padding:16px;margin:16px 0;text-align:left}
.rnote{font-size:.84rem;color:var(--muted);margin:12px 0 0}
.lead-form{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.lead-form input{flex:1;min-width:140px;padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;font-size:.95rem}
.result .btn-ghost{margin-top:16px}

/* footer */
.footer{background:var(--ink);color:#c4d0db;padding:40px 0 26px;font-size:.9rem}
.foot-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer b{color:#fff}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;height:fit-content}
.foot-links a{color:#c4d0db}
.foot-links a:hover{color:#fff}
.disclaimer{font-size:.78rem;color:#8a9aa9;margin-top:26px;border-top:1px solid #2a3a48;padding-top:18px}

/* FAQ accordion */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}
.faq-item[open]{border-color:var(--brand)}
.faq-item summary{padding:16px 20px;font-weight:700;font-size:1.02rem;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;-webkit-tap-highlight-color:transparent;min-height:48px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.3rem;font-weight:700;color:var(--brand);flex-shrink:0;width:24px;text-align:center;transition:transform .2s}
.faq-item[open] summary::after{content:'−'}
.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:.95rem;line-height:1.65}
.faq-answer a{color:var(--brand);font-weight:600}

/* sample-report document */
.sr-doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.sr-header{background:var(--ink);color:#fff;padding:18px 22px;font-size:.95rem;font-weight:600;letter-spacing:.01em}
.sr-section{padding:18px 22px;border-bottom:1px solid var(--line)}
.sr-section:last-of-type{border-bottom:none}
.sr-section-title{font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);margin-bottom:10px}
.sr-table{width:100%;border-collapse:collapse}
.sr-table td{padding:5px 0;font-size:.93rem;vertical-align:top}
.sr-table td:first-child{color:var(--muted);padding-right:12px}
.sr-numbers .sr-amt{font-family:'Consolas','Menlo',monospace;text-align:right;white-space:nowrap;font-weight:600;color:var(--ink)}
.sr-neg{color:var(--muted)!important}
.sr-green{color:var(--brand)!important}
.sr-subtotal td{border-top:1px solid var(--line);font-weight:700}
.sr-highlight td{border-top:2px solid var(--brand);font-weight:800;font-size:1rem;padding-top:8px}
.sr-detail{margin-top:8px;font-size:.84rem;color:var(--muted);font-style:italic}
.sr-recommend{margin-top:12px;background:#e8f4f1;border:1px solid #b9ddd5;border-radius:10px;padding:12px 16px;font-size:.93rem}
.sr-flags{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.sr-flag{padding:10px 14px;border-radius:9px;font-size:.9rem;line-height:1.5}
.sr-flag-warn{background:#fff7e6;border:1px solid #ffe2a8}
.sr-flag-fix{background:#fef2f2;border:1px solid #fecaca}
.sr-flag-info{background:var(--soft);border:1px solid var(--line)}
.sr-footer-note{padding:16px 22px;background:var(--soft);font-size:.84rem;color:var(--muted);font-style:italic;border-top:1px solid var(--line)}

/* i18n toggle */
.i18n-btn{background:transparent;border:1.5px solid var(--line);color:var(--brand);font-weight:800;font-size:.82rem;padding:5px 10px;border-radius:8px;cursor:pointer;transition:.15s;line-height:1;white-space:nowrap;min-width:36px;min-height:36px;display:inline-flex;align-items:center;justify-content:center}
.i18n-btn:hover{background:var(--soft);border-color:var(--brand)}

@media(max-width:860px){
  .hero{grid-template-columns:1fr;padding-top:44px}
  .hero h1{font-size:2rem}
  .steps,.cards,.tiers{grid-template-columns:1fr}
  .nav nav a:not(.btn):not(.i18n-btn){display:none}
  .nav-inner{gap:10px}
  .cta-row{flex-direction:column}
  .cta-row .btn{text-align:center}
  .strip-inner{flex-direction:column;gap:12px}
  .foot-inner{flex-direction:column;gap:16px}
  .foot-links{flex-wrap:wrap}
  .lead-form{flex-direction:column}
  .lead-form input{min-width:0;width:100%}
  .tier{padding:20px 16px}
  .addon{padding:14px}
  .faq-item summary{padding:14px 16px;font-size:.96rem}
  .faq-answer{padding:0 16px 16px}
  .i18n-btn{padding:4px 8px;font-size:.78rem;min-width:32px;min-height:32px}
  .sr-header{padding:14px 16px;font-size:.88rem}
  .sr-section{padding:14px 16px}
  .sr-footer-note{padding:14px 16px}
}

@media(max-width:375px){
  .wrap{padding:0 14px}
  .hero{padding:36px 14px 30px}
  .hero h1{font-size:1.7rem}
  .section{padding:44px 14px}
  .chatcard{padding:14px}
  .msg{font-size:.88rem;padding:10px 13px}
  .qbox{padding:20px 16px}
  .qopt{padding:12px 14px;font-size:.93rem;min-height:44px}
  .result{padding:22px 16px}
  .btn-lg{padding:14px 22px;font-size:1rem}
  .sr-table td{font-size:.86rem;padding:4px 0}
  .sr-numbers .sr-amt{font-size:.84rem}
  .sr-flag{padding:8px 12px;font-size:.84rem}
  .sr-recommend{padding:10px 12px;font-size:.86rem}
}