/* Jiajia Forge - dark forged industrial */
:root{
  --ink:#111417;
  --ink-2:#1b1f24;
  --orange:#D97706;
  --orange-2:#f08c1a;
  --paper:#F5F5F4;
  --white:#ffffff;
  --text:#1b1f24;
  --muted:#5c636b;
  --line:rgba(17,20,23,.16);
  --line-dark:rgba(255,255,255,.16);
  --max:1200px;
  --font-head:"Archivo","Arial Black",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font-body);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--font-head);letter-spacing:-.02em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-9999px;top:0;background:var(--orange);color:#111417;padding:10px 16px;font-weight:700;z-index:100}
.skip:focus{left:12px;top:12px}

/* header */
.site-header{background:var(--ink);border-bottom:1px solid var(--line-dark);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:#fff;flex-shrink:0}
.brand-mark{width:30px;height:30px;border:2px solid var(--orange);display:inline-grid;place-items:center;color:var(--orange);font-family:var(--font-head);font-weight:900;font-size:15px;line-height:1}
.brand-name{font-family:var(--font-head);font-weight:900;letter-spacing:.06em;font-size:1.12rem}
.brand-name span{color:var(--orange)}
.primary-nav{display:flex;gap:26px;margin-left:auto}
.primary-nav a{color:#c7ccd1;text-decoration:none;font-family:var(--font-head);font-size:12.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:6px 0;border-bottom:1px solid transparent;white-space:nowrap;transition:color .2s,border-color .2s}
.primary-nav a:hover{color:var(--orange);border-bottom-color:var(--orange)}
.header-cta{white-space:nowrap}
.nav-toggle{display:none;margin-left:auto;width:42px;height:38px;background:transparent;border:1px solid var(--line-dark);flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:#e9eaeb}
.nav-toggle:focus-visible,.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--orange);outline-offset:3px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-head);font-weight:700;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;padding:13px 21px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.btn-orange{background:var(--orange);color:#111417;border-color:var(--orange)}
.btn-orange:hover{background:var(--orange-2);border-color:var(--orange-2)}
.btn-ghost{background:transparent;color:#e9eaeb;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn-lg{padding:16px 26px}
.btn:disabled{opacity:.6;cursor:wait}

/* hero */
.hero{background:var(--ink);color:#e9eaeb;border-bottom:1px solid var(--line-dark)}
.hero-inner{display:flex;align-items:stretch}
.hero-media{flex:1 1 50%;position:relative;overflow:hidden;min-height:520px;border-right:1px solid var(--line-dark);background:#0b0d0f}
.hero-media img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;display:block;filter:saturate(.85) contrast(1.05)}
.hero-tag{position:absolute;left:0;bottom:0;background:var(--orange);color:#111417;font-family:var(--font-head);font-weight:800;font-size:10.5px;letter-spacing:.14em;padding:9px 14px;text-transform:uppercase;z-index:2}
.hero-copy{flex:1 1 50%;padding:62px 0 54px 54px;display:flex;flex-direction:column;justify-content:center}
.eyebrow{font-family:var(--font-head);font-size:11.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--orange);display:flex;align-items:center;gap:12px;margin:0 0 18px}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;display:inline-block;flex-shrink:0}
.eyebrow-light{color:var(--orange-2)}
.hero h1{font-weight:900;font-size:clamp(2.05rem,3.5vw,3.3rem);line-height:1.06;margin:0 0 20px;color:#fff}
.hero-lead{font-size:1.06rem;color:#b9bfc5;max-width:54ch;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 0}
.statbar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark);margin-top:38px}
.stat{padding:16px 14px 2px 0;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:0}
.stat-num{display:block;font-family:var(--font-head);font-weight:900;font-size:1.65rem;color:#fff;line-height:1.1}
.stat-label{display:block;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#8b939b;margin-top:6px}

/* sections */
.section{padding:82px 0;border-top:1px solid var(--line)}
.section-alt{background:var(--white)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2,.cta-text h2,.contact-aside h2,.split-body h2{font-weight:900;font-size:clamp(1.65rem,2.7vw,2.4rem);line-height:1.13;margin:0 0 16px}
.section-intro{font-size:1.05rem;color:var(--muted);max-width:68ch;margin:0}
.rule{height:1px;background:var(--line);margin:34px 0}

/* feature grid */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.feature{border:1px solid var(--line);background:var(--white);transition:border-color .2s}
.feature:hover{border-color:var(--orange)}
.feature-media img{width:100%;height:250px;object-fit:cover;display:block}
.feature-body{padding:26px}
.index-num{font-family:var(--font-head);font-weight:900;font-size:12px;color:var(--orange);letter-spacing:.12em}
.feature h3{font-size:1.32rem;margin:10px 0 12px}
.feature p{color:var(--muted);font-size:.96rem}
.text-link{font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--orange);padding-bottom:3px;display:inline-block;transition:color .2s}
.text-link:hover{color:var(--orange)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:30px 26px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step-num{font-family:var(--font-head);font-weight:900;font-size:2.3rem;color:var(--orange);line-height:1;display:block;margin-bottom:14px}
.step h3{font-size:1.12rem;margin:0 0 10px}
.step p{color:var(--muted);font-size:.94rem;margin:0}

/* spec table */
.spec-table{border-top:1px solid var(--line)}
.spec-row{display:grid;grid-template-columns:270px 1fr;gap:22px;padding:16px 0;border-bottom:1px solid var(--line)}
.spec-k{font-family:var(--font-head);font-weight:700;font-size:.86rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink)}
.spec-v{color:var(--muted)}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column;transition:border-color .2s}
.card:hover{border-color:var(--orange)}
.card-media img{width:100%;height:225px;object-fit:cover;display:block}
.card-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-num{font-family:var(--font-head);font-weight:900;color:var(--orange);letter-spacing:.12em;font-size:12px}
.card h3{font-size:1.28rem;margin:0}
.card p{color:var(--muted);font-size:.95rem;margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.chip{font-family:var(--font-head);font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--line);padding:5px 9px;color:var(--ink)}
.card .text-link{margin-top:auto;align-self:flex-start}

/* term bar */
.termbar{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);margin-top:34px}
.term{padding:20px;border-right:1px solid var(--line)}
.term:last-child{border-right:0}
.term b{display:block;font-family:var(--font-head);font-size:1.02rem;color:var(--ink);line-height:1.3}
.term span{display:block;font-size:11px;color:var(--muted);margin-top:7px;letter-spacing:.05em;text-transform:uppercase}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line);align-items:stretch;margin-top:40px}
.split-media img{width:100%;height:100%;min-height:320px;object-fit:cover;display:block}
.split-body{padding:36px 0 36px 44px;display:flex;flex-direction:column;justify-content:center}
.split-body h2{font-size:clamp(1.5rem,2.2vw,2rem)}
.split-body p{color:var(--muted);max-width:54ch}
.split-links{display:flex;flex-wrap:wrap;gap:22px;margin-top:22px}

/* application rows */
.app-row{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch}
.app-media img{width:100%;height:100%;min-height:330px;object-fit:cover;display:block}
.app-body{padding:36px 0 36px 44px;display:flex;flex-direction:column;justify-content:center}
.app-num{font-family:var(--font-head);font-weight:900;font-size:2rem;color:var(--orange);line-height:1;display:block;margin-bottom:12px}
.app-body h3{font-size:1.55rem;margin:0 0 14px}
.app-body p{color:var(--muted);max-width:54ch}
.app-body .text-link{align-self:flex-start;margin-top:8px}

/* link grid */
.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.link-card{display:block;text-decoration:none;padding:26px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .2s,border-color .2s}
.link-card:hover{background:var(--white)}
.link-card span{font-family:var(--font-head);font-weight:900;font-size:1.1rem;color:var(--orange);display:block;margin-bottom:12px}
.link-card h3{font-size:1.05rem;margin:0 0 8px}
.link-card p{color:var(--muted);font-size:.9rem;margin:0}

/* faq */
.faq-list{border-top:1px solid var(--line)}
.faq-item{display:grid;grid-template-columns:62px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.faq-qnum{font-family:var(--font-head);font-weight:900;color:var(--orange);font-size:1.15rem}
.faq-item h3{font-size:1.14rem;margin:0 0 10px}
.faq-item p{color:var(--muted);margin:0;max-width:82ch}

/* cta band */
.cta-band{background:var(--ink);color:#e9eaeb;border-top:1px solid var(--line-dark)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:62px 0}
.cta-text h2{color:#fff;max-width:20ch}
.cta-text p{color:#aeb4ba;max-width:62ch}
.cta-band .btn{flex-shrink:0}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.contact-aside h2{max-width:22ch}
.contact-aside>p{color:var(--muted)}
.check-list{list-style:none;padding:0;margin:26px 0 0;border-top:1px solid var(--line)}
.check-list li{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.96rem}
.check-list li span{font-family:var(--font-head);font-weight:900;color:var(--orange);min-width:28px;flex-shrink:0}
.aside-rule{height:1px;background:var(--line);margin:28px 0}
.small{font-size:.88rem;color:var(--muted)}
.contact-aside a,.form-note a{color:var(--orange)}
.quote-form{border:1px solid var(--line);background:var(--white);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--font-head);font-weight:700;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.field label span{color:var(--orange)}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:.95rem;color:var(--text);background:var(--white);border:1px solid var(--line);border-radius:0;padding:12px 14px;transition:border-color .2s}
.field input::placeholder,.field textarea::placeholder{color:#9aa0a6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--orange)}
.field textarea{min-height:132px;resize:vertical}
.botcheck{position:absolute;left:-9999px;opacity:0;width:1px;height:1px}
.form-status{margin-top:14px;font-size:.92rem;min-height:1.2em;color:var(--ink)}
.form-status a{color:var(--orange)}
.form-note{font-size:.84rem;color:var(--muted);margin-top:16px}

/* footer */
.site-footer{background:var(--ink);color:#aeb4ba;border-top:1px solid var(--line-dark)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:40px;padding:62px 0 46px}
.footer-brandcol .brand{margin-bottom:18px}
.footer-brandcol p{color:#8b939b;max-width:38ch;font-size:.92rem}
.footer-head{font-family:var(--font-head);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin:0 0 16px}
.footer-col a{display:block;color:#aeb4ba;text-decoration:none;font-size:.9rem;padding:6px 0;border-bottom:1px solid var(--line-dark);transition:color .2s}
.footer-col a:hover{color:var(--orange)}
.footer-contact .btn{margin-bottom:16px}
.footer-contact p{font-size:.9rem;margin:0 0 6px}
.footer-contact a:not(.btn){color:var(--orange);text-decoration:none}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid var(--line-dark);font-size:.83rem;color:#8b939b}

/* motion */
@media (prefers-reduced-motion: no-preference){
  .js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
  .js .reveal.in-view{opacity:1;transform:none}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1!important;transform:none!important}
}

/* 1024 breakpoint */
@media (max-width:1023px){
  .footer-top{grid-template-columns:1fr 1fr}
  .hero-copy{padding-left:36px}
  .hero-media{min-height:460px}
  .spec-row{grid-template-columns:220px 1fr}
  .link-grid{grid-template-columns:repeat(2,1fr)}
  .app-body{padding-left:30px}
  .split-body{padding-left:30px}
}

/* 768 breakpoint */
@media (max-width:767px){
  .wrap{padding:0 20px}
  .header-inner{min-height:62px;flex-wrap:wrap;gap:14px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .primary-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--ink);flex-direction:column;gap:0;margin:0;padding:8px 20px 18px;border-bottom:1px solid var(--line-dark)}
  .primary-nav.is-open{display:flex}
  .primary-nav a{padding:13px 0;border-bottom:1px solid var(--line-dark)}
  .hero-inner{flex-direction:column}
  .hero-copy{order:-1;padding:42px 0 38px}
  .hero-media{min-height:250px;border-right:0;border-top:1px solid var(--line-dark)}
  .hero h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .statbar{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat{padding:14px 12px 8px 0}
  .section{padding:54px 0}
  .section-head{margin-bottom:30px}
  .feature-grid,.card-grid,.app-row,.contact-grid,.split{grid-template-columns:1fr}
  .feature-media img,.card-media img{height:220px}
  .app-media img,.split-media img{min-height:230px;height:230px}
  .app-body,.split-body{padding:28px 0 0}
  .split{margin-top:26px}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}
  .step:last-child{border-bottom:0}
  .termbar{grid-template-columns:1fr 1fr}
  .term:nth-child(2){border-right:0}
  .term:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .spec-row{grid-template-columns:1fr;gap:4px}
  .link-grid{grid-template-columns:1fr 1fr}
  .faq-item{grid-template-columns:40px 1fr;gap:12px;padding:22px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;gap:26px}
  .quote-form{padding:24px}
  .footer-top{grid-template-columns:1fr;gap:32px;padding:48px 0 36px}
  .footer-bottom{flex-direction:column;gap:8px}
  .contact-grid{gap:36px}
}

/* ===== Blog module (appended for /blog/ - Jiajia Forge) ===== */
.blog-masthead{background:var(--ink);color:#e9eaeb;border-bottom:1px solid var(--line-dark)}
.blog-masthead .wrap{padding-top:60px;padding-bottom:58px}
.breadcrumb{font-family:var(--font-head);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#8b939b;margin:0 0 26px}
.breadcrumb a{color:var(--orange-2);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:#5c636b;margin:0 10px}
.blog-masthead h1{font-weight:900;font-size:clamp(1.95rem,3.5vw,3rem);line-height:1.1;color:#fff;margin:0 0 18px;max-width:24ch}
.blog-masthead .blog-lead{font-size:1.06rem;color:#b9bfc5;max-width:66ch;margin:0}
.post-meta{font-family:var(--font-head);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--orange-2);margin:22px 0 0}
.post-meta span{color:#8b939b;margin:0 8px}

/* hub cards */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.blog-grid .card-media{display:block}
.blog-grid .card-media img{height:210px}
.card h3 a{text-decoration:none;transition:color .2s}
.card h3 a:hover{color:var(--orange)}

/* article layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:60px;align-items:start}
.article-body{max-width:74ch}
.article-body .article-lead{font-size:1.16rem;color:var(--muted);line-height:1.72;border-left:3px solid var(--orange);padding-left:22px;margin:0 0 34px}
.article-body h2{font-weight:800;font-size:clamp(1.4rem,2.2vw,1.9rem);line-height:1.18;margin:46px 0 16px}
.article-body p{font-size:1.02rem;line-height:1.8;margin:0 0 20px}
.article-body a{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body li{margin:0 0 10px;line-height:1.75}
.article-body strong{font-weight:700}
.article-figure{margin:0 0 34px}
.article-figure img{width:100%;height:auto;display:block;border:1px solid var(--line)}
.article-figure figcaption{font-family:var(--font-head);font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:11px}
.article-endnote{border-top:1px solid var(--line);margin-top:40px;padding-top:28px}

/* article sidebar */
.article-aside{position:sticky;top:96px}
.aside-box{border:1px solid var(--line);background:var(--white);padding:26px;margin-bottom:24px}
.aside-kicker{font-family:var(--font-head);font-size:10.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--orange);margin:0 0 14px}
.aside-box h3{font-size:1.12rem;margin:0 0 12px}
.aside-box p{color:var(--muted);font-size:.92rem;margin:0 0 18px}
.aside-box .btn{width:100%}
.aside-list{list-style:none;padding:0;margin:0}
.aside-list li{padding:12px 0;border-bottom:1px solid var(--line)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list a{font-family:var(--font-head);font-weight:600;font-size:.92rem;color:var(--ink);text-decoration:none;line-height:1.45;display:block;transition:color .2s}
.aside-list a:hover{color:var(--orange)}
.aside-list .aside-sub{font-family:var(--font-body);font-size:.82rem;color:var(--muted);display:block;margin-top:4px}

@media (max-width:1023px){
  .blog-grid{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr;gap:40px}
  .article-aside{position:static}
}
@media (max-width:767px){
  .blog-grid{grid-template-columns:1fr}
  .blog-masthead .wrap{padding-top:42px;padding-bottom:40px}
  .article-body h2{font-size:1.35rem}
  .breadcrumb{font-size:10px}
}