/* shengboyu.ca — Phase 1 shared stylesheet
   Palette: deep navy + teal, warm paper accent (Wuri sections). No external assets. */
:root{
  --navy:#0e2a47; --navy-2:#12365c; --ink:#1c2733; --muted:#54657a;
  --teal:#0e7c86; --teal-dark:#0a5f67; --teal-soft:#e6f3f4;
  --paper:#f7f2e7; --paper-line:#e3d9c3; --paper-ink:#3a3226; --accent:#8a5a2b;
  --bg:#ffffff; --bg-soft:#f4f7fa; --line:#dbe3ec;
  --radius:14px; --shadow:0 6px 24px rgba(14,42,71,.08);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,
         "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
     line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--teal-dark);text-underline-offset:3px}
a:hover{color:var(--teal)}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:4px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;
      padding:10px 16px;z-index:99;border-radius:0 0 10px 0}
.skip:focus{left:0;color:#fff}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(1.2) blur(6px)}
.header-in{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--navy);margin-right:auto}
.brand:hover{color:var(--navy)}
.monogram{width:42px;height:42px;flex:none;border-radius:11px;background:var(--navy);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.04em}
.brand-name{font-weight:700;font-size:18px;line-height:1.15}
.brand-sub{display:block;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{color:var(--ink);text-decoration:none;padding:9px 12px;border-radius:9px;font-size:15.5px}
.main-nav a:hover{background:var(--bg-soft);color:var(--navy)}
.main-nav a[aria-current="page"]{color:var(--teal-dark);font-weight:700}
.main-nav a.nav-cta{background:var(--teal);color:#fff;font-weight:600;margin-left:6px}
.main-nav a.nav-cta:hover{background:var(--teal-dark);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;
  width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);border-radius:2px}
@media (max-width:820px){
  .nav-toggle{display:flex}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:10px 16px 16px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px rgba(14,42,71,.12)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px}
  .main-nav a.nav-cta{margin:6px 0 0;text-align:center}
}

/* ---------- hero ---------- */
.hero{background:linear-gradient(150deg,var(--navy) 0%,var(--navy-2) 62%,#155263 100%);color:#eaf1f8}
.hero-in{padding:64px 0 58px;max-width:780px}
.eyebrow{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#9fd4d9;font-weight:700;margin:0 0 14px}
.hero h1{font-size:clamp(34px,6vw,52px);line-height:1.12;margin:0 0 8px;font-weight:800;letter-spacing:.01em}
.hero h1 .zh{font-weight:700}
.hero .lead{font-size:clamp(18px,2.6vw,21px);line-height:1.6;color:#d7e5f2;margin:10px 0 0}
.hero .lead-en{color:#a9c2d9;font-size:16px;margin-top:14px}
.hero .lead-zh{color:#cfe3dd;font-size:16px;margin-top:6px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero--paper{background:linear-gradient(150deg,#20303f 0%,#2c4356 55%,#4a3d28 130%);color:#f3eee1}
.hero--paper .eyebrow{color:#d9bc7f}
.hero--paper .lead{color:#e8e2d2}
.hero--paper .lead-en{color:#bfb49a}
.hero-flex{display:flex;gap:26px;align-items:flex-start}
.hero-icon{width:104px;height:104px;border-radius:24px;flex:none;box-shadow:0 10px 30px rgba(0,0,0,.35)}
@media (max-width:560px){.hero-flex{flex-direction:column}.hero-icon{width:84px;height:84px}}

/* ---------- buttons ---------- */
.btn{display:inline-block;text-decoration:none;font-weight:650;padding:13px 22px;border-radius:11px;
  font-size:16px;border:1px solid transparent;cursor:pointer;text-align:center}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:var(--teal-dark);color:#fff}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#eaf1f8;color:var(--navy)}
.btn-outline{border-color:#7fa6bd;color:#eaf1f8;background:transparent}
.btn-outline:hover{border-color:#fff;color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff}
.btn-ghost{border-color:var(--line);color:var(--navy);background:#fff}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-dark)}
.btn-paper{background:var(--accent);color:#fff}
.btn-paper:hover{background:#74491f;color:#fff}
.btn-block{display:block;width:100%}

/* ---------- sections & cards ---------- */
section{padding:56px 0}
section.soft{background:var(--bg-soft)}
section.paper{background:var(--paper);color:var(--paper-ink)}
h2{font-size:clamp(24px,3.6vw,32px);line-height:1.25;color:var(--navy);margin:0 0 10px}
.paper h2{color:#4a3517}
.section-lead{color:var(--muted);max-width:720px;margin:0 0 30px}
.paper .section-lead{color:#6d5f45}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:860px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px}
.card h3{margin:0;font-size:20px;color:var(--navy);line-height:1.35}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.card .card-link{margin-top:auto;padding-top:10px;font-weight:650;text-decoration:none}
.card .card-link:hover{text-decoration:underline}
.card-icon{font-size:30px;line-height:1;color:var(--teal)}
.card img.card-app-icon{width:64px;height:64px;border-radius:15px}
.card .price{font-size:26px;font-weight:800;color:var(--navy)}
.card .price small{font-size:14px;font-weight:600;color:var(--muted)}
.tag{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.05em;
  background:var(--teal-soft);color:var(--teal-dark);border-radius:999px;padding:3px 11px}
.tag-paper{background:#efe3c8;color:#7c5518}
.soon{opacity:.75;box-shadow:none}
.soon .card-link{color:var(--muted);font-weight:600}

/* trust strip */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:26px 0 4px}
.trust div{border-left:3px solid var(--teal);padding:2px 0 2px 13px}
.trust b{display:block;color:var(--navy);font-size:16px;line-height:1.35}
.trust span{font-size:13.5px;color:var(--muted)}
@media (max-width:860px){.trust{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.trust{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
@media (max-width:860px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;margin-bottom:10px}
.step h3{margin:0 0 6px;font-size:17px;color:var(--navy)}
.step p{margin:0;font-size:14.5px;color:var(--muted)}

/* table */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;min-width:520px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);font-size:15.5px;vertical-align:top}
thead th{background:var(--navy);color:#fff;font-size:15px}
tbody th{font-weight:650;color:var(--navy);white-space:nowrap}
td .yes{color:var(--teal-dark);font-weight:700}
td .no{color:#9aa8b8}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:4px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:650;color:var(--navy);padding:13px 0}
.faq details p{color:var(--muted);font-size:15.5px;margin:0 0 14px}

/* cta band */
.cta-band{background:var(--navy);color:#dbe7f3;border-radius:18px;padding:34px 30px;
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.cta-band h2{color:#fff;margin:0 0 6px}
.cta-band p{margin:0;max-width:560px}
.cta-band .phone-big{font-size:clamp(24px,4vw,32px);font-weight:800;color:#fff;text-decoration:none;letter-spacing:.02em}
.cta-band .phone-big:hover{color:#9fd4d9}

/* contact */
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:34px}
@media (max-width:700px){.contact-cards{grid-template-columns:1fr}}
.phone-display{font-size:clamp(26px,4.5vw,34px);font-weight:800;color:var(--navy);letter-spacing:.02em;text-decoration:none}
.phone-display:hover{color:var(--teal-dark)}
.note-sms{background:var(--teal-soft);border-radius:10px;padding:12px 14px;font-size:14.5px;color:#23404a}
.note-sms p{margin:0 0 4px;color:#23404a;font-size:14.5px}
.note-sms p:last-child{margin-bottom:0}
form.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:650;color:var(--navy);margin-bottom:6px;font-size:15.5px}
.field label .optional{font-weight:500;color:var(--muted);font-size:13.5px}
.field input,.field select,.field textarea{width:100%;padding:12px 13px;font:inherit;font-size:16px;
  border:1px solid #b9c7d6;border-radius:10px;background:#fff;color:var(--ink)}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:3px solid rgba(14,124,134,.35);border-color:var(--teal)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}
.form-status{margin-top:16px;border-radius:10px;padding:13px 15px;font-size:15.5px;display:none}
.form-status.ok{display:block;background:#e5f4e9;color:#175c2b;border:1px solid #a9d6b5}
.form-status.err{display:block;background:#fdeeee;color:#8c2f22;border:1px solid #f0bdb4}
.form-fallback{margin-top:14px;display:none}
.form-fallback.show{display:block}
.privacy-note{font-size:13.5px;color:var(--muted);margin-top:14px}

/* footer */
.site-footer{background:var(--navy);color:#b9cbdd;margin-top:0}
.footer-in{padding:38px 0 30px;display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between}
.site-footer a{color:#dbe7f3;text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.footer-brand{font-weight:700;color:#fff;font-size:18px}
.footer-links{display:flex;flex-direction:column;gap:7px;font-size:15px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding:16px 0 22px;font-size:13.5px;color:#8fa9c2}
.small{font-size:14px}
.mt{margin-top:22px}

/* ---------- photos ---------- */
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:760px){.photo-grid{grid-template-columns:1fr}}
.photo-grid figure,.photo-wide{margin:0}
.photo-grid img,.photo-wide img{width:100%;height:auto;display:block;border-radius:var(--radius);box-shadow:var(--shadow)}
.photo-grid figcaption,.photo-wide figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.photo-wide{margin:0 0 26px}