/* ══════════════════════════════════════════════════════════════════
   WaymarkChina Shared Styles — v1.0
   Used by: index.html, services.html, reports.html, about.html, why-us.html, brief.html
   ══════════════════════════════════════════════════════════════════ */

:root {
  /* Foundation */
  --bg:          #FAFAFA;
  --surface:     #FFFFFF;
  --surface-dim: #F8F8F8;
  --border:      #E2E8F0;
  --border2:     #CBD5E1;

  /* Text Hierarchy */
  --text:        #0F172A;
  --text2:       #475569;
  --text3:       #94A3B8;

  /* Brand */
  --brand:       #0F172A;

  /* Primary Action — China Seal Red */
  --accent:      #C41E3A;
  --accent-hover:#A3182F;
  --accent-bg:   #FEF2F2;

  /* Semantic */
  --gold:        #CA8A04;
  --gold-bg:     #FFFBEB;
  --green:       #059669;
  --green-bg:    #ECFDF5;
  --red:         #DC2626;
  --radius:      12px;
}

/* ─── Reset & Base ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Lexend','Inter',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  color:var(--text);background:var(--bg);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none;cursor:pointer}
a:hover{text-decoration:underline}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* ─── Nav ─── */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(250,250,250,.92);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  height:64px;display:flex;align-items:center;
}
nav .n-inner{max-width:1120px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;width:100%}
nav .n-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;color:var(--brand);letter-spacing:-.3px;white-space:nowrap;text-decoration:none}
nav .n-logo span{color:var(--accent)}
nav .n-logo-icon{width:24px;height:24px;border-radius:4px;flex-shrink:0}
nav .n-links{display:flex;gap:24px;font-size:13px;font-weight:500}
nav .n-links a{color:var(--text2);text-decoration:none;white-space:nowrap;transition:color .15s}
nav .n-links a:hover{color:var(--text);text-decoration:none}
nav .n-links a.active{color:var(--accent)}
nav .n-cta{
  margin-left:auto;font-size:12px;font-weight:600;padding:8px 18px;
  background:var(--accent);color:#fff;border-radius:8px;white-space:nowrap;
  transition:background .15s;cursor:pointer;text-decoration:none;
}
nav .n-cta:hover{background:var(--accent-hover);text-decoration:none}
@media(max-width:640px){
  nav .n-links{display:none}
  nav .n-inner{padding:0 16px}
  .wrap{padding:0 16px}
}

/* ─── Buttons ─── */
.btn-row{display:flex;gap:10px;flex-wrap:wrap}
.btn-primary{
  display:inline-flex;align-items:center;gap:6px;
  font-family:'Lexend','Inter',sans-serif;
  font-size:14px;font-weight:600;padding:12px 24px;border-radius:8px;
  background:var(--accent);color:#fff;border:none;cursor:pointer;
  transition:background .15s;text-decoration:none;
}
.btn-primary:hover{background:var(--accent-hover);text-decoration:none}
.btn-secondary{
  display:inline-flex;align-items:center;gap:6px;
  font-family:'Lexend','Inter',sans-serif;
  font-size:14px;font-weight:600;padding:11px 22px;border-radius:8px;
  background:var(--surface);color:var(--text);border:1px solid var(--border);cursor:pointer;
  transition:border-color .15s;text-decoration:none;
}
.btn-secondary:hover{border-color:var(--border2);text-decoration:none}

/* ─── Hero ─── */
.hero{padding:88px 0 56px;position:relative;overflow:hidden}
.hero .badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;font-weight:600;padding:4px 12px;border-radius:100px;
  background:var(--accent-bg);color:var(--accent);margin-bottom:20px;letter-spacing:.3px;
}
.hero .badge svg{width:14px;height:14px}
.hero h1{
  font-size:clamp(28px,5vw,44px);font-weight:800;line-height:1.12;
  letter-spacing:-.8px;color:var(--brand);margin-bottom:16px;max-width:740px;
}
.hero h1 span{color:var(--brand);font-style:italic}
.hero .sub{
  font-size:17px;color:var(--text2);max-width:560px;line-height:1.55;margin-bottom:32px;
}

/* ─── Section ─── */
.section{padding:72px 0;border-top:1px solid var(--border)}
.section .s-label{
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;
  color:var(--text3);margin-bottom:10px;
}
.section h2{
  font-size:clamp(22px,3.5vw,28px);font-weight:800;letter-spacing:-.5px;
  color:var(--brand);margin-bottom:8px;line-height:1.2;
}
.section .s-sub{
  font-size:15px;color:var(--text2);max-width:560px;line-height:1.55;margin-bottom:36px;
}
.section .s-link{
  display:inline-flex;align-items:center;gap:4px;
  font-size:13px;font-weight:600;color:var(--accent);margin-top:24px;
}
.section .s-link:hover{text-decoration:none}
.section .s-link::after{content:'→';transition:transform .15s}
.section .s-link:hover::after{transform:translateX(3px)}

/* ─── Icon Grid (3-col) ─── */
.icon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.icon-card{
  padding:28px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);transition:border-color .2s;
}
.icon-card:hover{border-color:var(--border2)}
.icon-card .ic-icon{
  width:40px;height:40px;border-radius:8px;background:var(--accent-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  color:var(--accent);
}
.icon-card .ic-icon svg{width:22px;height:22px}
.icon-card .ic-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px}
.icon-card .ic-desc{font-size:13px;color:var(--text2);line-height:1.55}

/* ─── Stat Bar ─── */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
  margin:0 0 48px;
}
.stat-item{
  text-align:center;padding:20px 12px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
}
.stat-item .sv{
  font-family:'JetBrains Mono',Menlo,monospace;
  font-size:clamp(22px,3.5vw,30px);font-weight:800;color:var(--brand);
  letter-spacing:-.5px;margin-bottom:4px;
}
.stat-item .sl{font-size:12px;font-weight:500;color:var(--text3);line-height:1.35}

/* ─── Service Tier Cards ─── */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tier-card{
  padding:28px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);position:relative;text-decoration:none;color:inherit;
  cursor:pointer;transition:border-color .2s;
}
.tier-card:hover{text-decoration:none;border-color:var(--accent)}
.tier-card .tc-icon{
  width:40px;height:40px;border-radius:8px;display:flex;
  align-items:center;justify-content:center;margin-bottom:16px;
  background:var(--accent-bg);color:var(--accent);
}
.tier-card .tc-icon svg{width:22px;height:22px}
.tier-card .tc-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px}
.tier-card .tc-desc{font-size:13px;color:var(--text2);line-height:1.55;margin-bottom:16px}
.tier-card .tc-link{font-size:13px;font-weight:600;color:var(--accent)}

/* ─── Industry Grid ─── */
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.industry-card{
  padding:24px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);transition:border-color .2s;text-decoration:none;
  color:inherit;
}
.industry-card:hover{border-color:var(--border2);text-decoration:none}
.industry-card .iy-icon{
  width:40px;height:40px;border-radius:8px;background:var(--accent-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;
  color:var(--accent);
}
.industry-card .iy-icon svg{width:20px;height:20px}
.industry-card .iy-name{font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px}
.industry-card .iy-desc{font-size:12px;color:var(--text2);line-height:1.5}

/* ─── Report Grid ─── */
.report-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.report-card{
  padding:24px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);transition:border-color .2s;text-decoration:none;color:inherit;
}
.report-card:hover{border-color:var(--border2)}
.report-card .rc-tags{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}
.report-card .rc-tag{
  font-size:10px;font-weight:600;padding:2px 8px;border-radius:100px;
  background:var(--accent-bg);color:var(--accent);white-space:nowrap;
}
.report-card .rc-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.35}
.report-card .rc-summary{font-size:13px;color:var(--text2);line-height:1.55;margin-bottom:16px}
.report-card .rc-link{font-size:13px;font-weight:600;color:var(--accent)}
.report-card .rc-date{font-size:11px;color:var(--text3);margin-left:auto}

/* ─── Process Flow (4-step horizontal) ─── */
.process-flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.process-step{
  padding:28px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);text-align:center;position:relative;
}
.process-step .ps-num{
  width:32px;height:32px;border-radius:50%;display:inline-flex;
  align-items:center;justify-content:center;margin-bottom:14px;
  font-family:'JetBrains Mono',Menlo,monospace;
  font-size:14px;font-weight:800;
  background:var(--accent-bg);color:var(--accent);
}
.process-step .ps-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px}
.process-step .ps-desc{font-size:12px;color:var(--text3);line-height:1.5}

/* ─── Comparison Table ─── */
.compare-table{width:100%;border-collapse:collapse;margin:24px 0}
.compare-table th{
  text-align:left;padding:10px 16px;
  font-size:12px;font-weight:600;color:var(--text3);
  text-transform:uppercase;letter-spacing:.5px;
  border-bottom:2px solid var(--border);
}
.compare-table td{
  padding:10px 16px;border-bottom:1px solid var(--border);
  font-size:14px;color:var(--text2);
}
.compare-table td:first-child{font-weight:600;color:var(--text)}
.compare-table tr:last-child td{border-bottom:none}
.compare-table .col-us{background:var(--accent-bg)}
.compare-table .check{color:var(--green);font-weight:700}
.compare-table .cross{color:var(--red)}

/* ─── FAQ ─── */
.faq-list{max-width:800px;margin-top:24px}
.faq-list details{border-bottom:1px solid var(--border);padding:0}
.faq-list details:first-of-type{border-top:1px solid var(--border)}
.faq-list summary{
  font-size:15px;font-weight:600;color:var(--text);
  padding:18px 0;cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:'+';font-family:'JetBrains Mono',monospace;
  font-size:18px;color:var(--text3);flex-shrink:0;transition:transform .2s;
}
.faq-list details[open] summary::after{content:'\2212'}
.faq-list .faq-answer{
  padding:0 0 20px;font-size:14px;color:var(--text2);line-height:1.65;max-width:660px;
}

/* ─── CTA Banner ─── */
.cta-banner{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:56px;text-align:center;margin-top:80px;
}
.cta-banner h3{font-size:24px;font-weight:800;color:var(--text);margin-bottom:10px;letter-spacing:-.3px}
.cta-banner p{font-size:15px;color:var(--text2);margin-bottom:28px;max-width:480px;margin-left:auto;margin-right:auto;line-height:1.5}

/* ─── Footer ─── */
footer{padding:48px 0;border-top:1px solid var(--border);text-align:center;margin-top:80px}
footer .f-tag{font-size:11px;color:var(--text3);margin-bottom:8px}
footer .f-links{font-size:12px;color:var(--text3)}
footer .f-links a{color:var(--accent)}

/* ─── Responsive ─── */
@media(max-width:768px){
  .hero{padding:56px 0 36px}
  .section{padding:56px 0}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .icon-grid{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .industry-grid{grid-template-columns:repeat(2,1fr)}
  .report-grid{grid-template-columns:1fr}
  .process-flow{grid-template-columns:1fr;gap:12px}
  .cta-banner{padding:36px 24px}
}

@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}