/* ============================================================
   Senchwood — Editorial timber theme
   Warm paper background, deep timber ink, copper accent.
   Deliberately NOT the blue/orange scheme used on yushuowood.
   ============================================================ */
:root{
  --ink:#241C16;
  --ink-2:#3A2A20;
  --brown:#6B4F3A;
  --copper:#B9762F;
  --copper-2:#9C5F22;
  --copper-soft:#F0DFC9;
  --paper:#FAF7F2;
  --paper-2:#F2ECE2;
  --line:#E3D9CB;
  --muted:#7A6B5D;
  --white:#FFFFFF;
  --radius:4px;
  --shadow:0 1px 2px rgba(36,28,22,.05);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:"Inter","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --maxw:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.7;font-size:16.5px;
  -webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;line-height:1.22}
img{max-width:100%;height:auto;display:block}
a{color:var(--brown);text-decoration:none;transition:color .2s}
a:hover{color:var(--copper)}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.grid{display:grid;gap:26px}
.eyebrow{display:block;font-family:var(--sans);color:var(--copper-2);font-weight:700;font-size:11.5px;
  letter-spacing:.24em;text-transform:uppercase;margin-bottom:14px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;
  padding:14px 30px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;
  font-size:14.5px;letter-spacing:.02em;transition:all .2s;white-space:nowrap;text-decoration:none;
  font-family:var(--sans)}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:var(--copper-2);color:#fff}
.btn-blue{background:var(--ink-2);color:#fff}
.btn-blue:hover{background:#000;color:#fff}
.btn-green{background:#4C7C4A;color:#fff}
.btn-green:hover{background:#3D6439;color:#fff}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn-outline:hover{background:#fff;color:var(--ink-2);border-color:#fff}
.btn-ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--brown);color:var(--ink-2)}
.btn-sm{padding:9px 18px;font-size:13.5px}

/* ---------- Top bar & header ---------- */
.topbar{background:var(--ink-2);color:#C9BCAB;font-size:12.5px;padding:8px 0;letter-spacing:.03em}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.topbar a{color:#C9BCAB}
.topbar a:hover{color:#fff}
.topbar .tb-right{display:flex;gap:18px;align-items:center}
.topbar .tb-sep{color:#5A483A}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(250,247,242,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600;
  font-size:23px;color:var(--ink-2);letter-spacing:.06em}
.brand svg{width:38px;height:38px}
.brand .brand-sub{display:block;font-family:var(--sans);font-size:9.5px;font-weight:600;
  color:var(--muted);letter-spacing:.28em}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{padding:9px 15px;color:var(--ink);font-weight:500;font-size:15px;border-radius:3px}
.nav-links a:hover{color:var(--copper-2)}
.nav-links a.active{color:var(--copper-2);position:relative}
.nav-links a.active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;
  height:1.5px;background:var(--copper)}
.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle svg{width:26px;height:26px;stroke:var(--ink-2)}

/* ---------- Hero: full-bleed image, editorial type ---------- */
.hero{position:relative;min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(28,21,16,.92) 0%,rgba(28,21,16,.78) 44%,rgba(28,21,16,.35) 100%)}
.hero-inner{position:relative;z-index:2;padding:110px 0;max-width:720px}
.hero h1{font-size:56px;font-weight:600;color:#fff;letter-spacing:-.02em}
.hero h1 em{color:var(--copper-soft);font-style:italic}
.hero p.lead{margin:24px 0 34px;font-size:19px;color:#DCD1C4;max-width:560px;line-height:1.75}
.hero-badge{display:inline-block;border:1px solid rgba(255,255,255,.4);padding:6px 15px;
  border-radius:99px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:#EFE6DA;margin-bottom:26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:52px;margin-top:56px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.18);padding-top:26px}
.hero-stats .hs b{font-family:var(--serif);font-size:34px;color:var(--copper-soft);font-weight:600;display:block;line-height:1.1}
.hero-stats .hs span{font-size:12px;color:#B7A894;letter-spacing:.09em;text-transform:uppercase}
.hero-visual{display:none}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section.alt{background:var(--paper-2)}
.section-head{max-width:660px;margin:0 0 56px}
.section-head.centered{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:38px;color:var(--ink-2)}
.section-head p{color:var(--muted);margin-top:16px;font-size:17px}

/* ---------- Product cards ---------- */
.prod-grid{grid-template-columns:repeat(3,1fr)}
.prod-card{background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.prod-card:hover{border-color:var(--brown);transform:translateY(-3px)}
.prod-thumb{position:relative;aspect-ratio:4/3;background:var(--paper-2);overflow:hidden}
.prod-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod-card:hover .prod-thumb img{transform:scale(1.04)}
.prod-tag{position:absolute;top:0;left:0;background:var(--ink-2);color:#fff;font-size:10.5px;
  font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:7px 13px}
.prod-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column;background:#fff}
.prod-body h3{font-size:20px;color:var(--ink-2);margin-bottom:8px}
.prod-body .spec{color:var(--muted);font-size:13.5px;margin-bottom:16px;line-height:1.6}
.prod-actions{margin-top:auto;display:flex;gap:10px}
.prod-actions .btn{flex:1;padding:11px 8px;font-size:13px}

/* ---------- Feature cards ---------- */
.feat-grid{grid-template-columns:repeat(4,1fr);gap:30px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;
  transition:all .25s}
.feat-card:hover{border-color:var(--brown)}
.feat-icon{width:48px;height:48px;border:1px solid var(--line);display:flex;align-items:center;
  justify-content:center;margin-bottom:20px;background:var(--paper)}
.feat-icon svg{width:24px;height:24px;stroke:var(--copper-2)}
.feat-card h3{font-size:18px;color:var(--ink-2);margin-bottom:10px}
.feat-card p{color:var(--muted);font-size:14.5px}

/* ---------- Market cards ---------- */
.market-grid{grid-template-columns:repeat(4,1fr);gap:30px}
.market-card{background:#fff;border-left:2px solid var(--copper);padding:4px 0 4px 22px}
.market-card h3{color:var(--ink-2);font-size:19px;margin-bottom:8px}
.market-card p{font-size:14px;color:var(--muted)}
.market-countries{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}
.market-countries span{border:1px solid var(--line);color:var(--muted);font-size:11.5px;
  padding:3px 11px;border-radius:99px}

/* ---------- Split / about ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split .img-side img{border-radius:var(--radius)}
.checklist li{display:flex;gap:14px;margin-bottom:15px;color:var(--ink);font-size:16px;
  padding-bottom:15px;border-bottom:1px solid var(--line)}
.checklist li:last-child{border-bottom:none}
.checklist li::before{content:"—";flex:none;color:var(--copper);font-weight:700}

/* ---------- Numbers band ---------- */
.numbers{background:var(--ink-2);color:#fff;padding:66px 0}
.numbers .grid{grid-template-columns:repeat(4,1fr);gap:36px}
.numbers div{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}
.numbers b{font-family:var(--serif);font-size:40px;font-weight:600;color:var(--copper-soft);display:block;line-height:1.1}
.numbers span{color:#A99A88;font-size:12.5px;letter-spacing:.09em;text-transform:uppercase}

/* ---------- Forms ---------- */
.form-grid{grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:12.5px;color:var(--ink-2);letter-spacing:.06em;text-transform:uppercase}
.field input,.field select,.field textarea{padding:13px 16px;border:1px solid var(--line);
  border-radius:var(--radius);font-size:15px;font-family:var(--sans);transition:border .2s;
  background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(185,118,47,.12)}
.field textarea{min-height:130px;resize:vertical}
.form-card{background:#fff;border:1px solid var(--line);padding:44px}
.form-note{font-size:13px;color:var(--muted)}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line)}
table.data{width:100%;border-collapse:collapse;min-width:640px}
table.data th{background:var(--paper-2);color:var(--ink-2);text-align:left;font-size:11.5px;
  text-transform:uppercase;letter-spacing:.12em;padding:15px 20px;border-bottom:1px solid var(--line);
  font-family:var(--sans)}
table.data td{padding:15px 20px;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink)}
table.data tr:last-child td{border-bottom:none}
table.data tr:hover td{background:var(--paper)}

/* ---------- Page hero / breadcrumb ---------- */
.page-hero{background:var(--ink-2);color:#fff;padding:74px 0}
.page-hero h1{font-size:44px;color:#fff}
.page-hero p{color:#B7A894;margin-top:14px;max-width:660px;font-size:17px}
.breadcrumb{font-size:12.5px;color:#8B7B69;margin-bottom:16px;letter-spacing:.05em}
.breadcrumb a{color:#8B7B69}
.breadcrumb a:hover{color:#fff}

/* ---------- Detail page ---------- */
.detail-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.detail-img{border:1px solid var(--line);background:var(--paper-2);aspect-ratio:4/3}
.detail-img img{width:100%;height:100%;object-fit:cover}
.spec-table td:first-child{background:var(--paper-2);font-weight:600;color:var(--ink-2);white-space:nowrap}
.spec-table td{padding:13px 18px;border:1px solid var(--line);font-size:14.5px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.gallery img{aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{padding:22px 0;font-family:var(--serif);font-weight:600;color:var(--ink-2);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:18px}
.faq-q .arrow{transition:transform .25s;color:var(--copper);font-size:12px;flex:none}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s;color:var(--muted);font-size:15.5px}
.faq-item.open .faq-a{max-height:320px}
.faq-a-inner{padding:0 0 22px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-2);color:#A99A88;padding:76px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:48px}
.site-footer h4{color:#fff;font-family:var(--serif);font-size:17px;margin-bottom:20px;font-weight:600}
.site-footer a{color:#A99A88;display:block;margin-bottom:11px}
.site-footer a:hover{color:var(--copper-soft)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#8B7B69}
.trust-badges{display:flex;gap:9px;flex-wrap:wrap}
.trust-badges span{border:1px solid rgba(255,255,255,.2);padding:5px 13px;border-radius:99px;font-size:11.5px}

/* ---------- Long link wrapping ---------- */
a[href^="mailto:"],.topbar a,.footer-grid a{word-break:break-word;overflow-wrap:anywhere}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .hero{min-height:520px}
  .hero-inner{padding:80px 0}
  .hero h1{font-size:42px}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .market-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:38px}
  .detail-grid{grid-template-columns:1fr;gap:36px}
  .numbers .grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:74px 0}
}
@media (max-width:768px){
  .nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--paper);
    flex-direction:column;align-items:stretch;padding:16px 20px 22px;gap:2px;
    border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .topbar .tb-right{display:none}
  .hero{min-height:auto}
  .hero-inner{padding:64px 0}
  .hero h1{font-size:32px}
  .hero p.lead{font-size:16.5px}
  .hero-stats{gap:28px;margin-top:40px}
  .hero-stats .hs b{font-size:26px}
  .section{padding:58px 0}
  .section-head h2{font-size:28px}
  .prod-grid{grid-template-columns:1fr;gap:18px}
  .feat-grid,.market-grid,.form-grid{grid-template-columns:1fr}
  .numbers .grid{grid-template-columns:1fr 1fr}
  .numbers div{padding-left:16px}
  .form-card{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .page-hero{padding:56px 0}
  .page-hero h1{font-size:31px}
  .faq-q{font-size:16.5px}
  .gallery{grid-template-columns:repeat(3,1fr);gap:8px}
}
@media (max-width:460px){
  .hero-cta .btn{width:100%}
  .prod-actions{flex-direction:column}
  .numbers .grid{grid-template-columns:1fr}
}