/* ==========================================================================
   Guangda Human Hair — Xuchang Source Factory
   Design tokens: warm ivory ground, ink-black type, honey-amber + burgundy
   accents drawn from the hair-color spectrum this factory actually sells.
   No external fonts — system serif for editorial headlines, system sans
   for UI and body copy.
   ========================================================================== */

:root{
  --ink:        #1C1712;
  --ink-soft:   #40352C;
  --ivory:      #F8F4EC;
  --paper:      #FFFFFF;
  --stone:      #8A7C6C;
  --stone-line: #E4DACB;
  --amber:      #C08A33;   /* honey-blonde / 613 */
  --amber-dark: #96691F;
  --burgundy:   #6E2430;   /* burgundy human hair accent */
  --burgundy-dk:#4E1620;
  --ok:         #3E6B4F;

  --serif: ui-serif, Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans:  -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1240px;
  --radius: 3px;
  --shadow-soft: 0 8px 28px rgba(28,23,18,0.09);
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; padding:0; }
body{
  font-family: var(--sans);
  color: var(--ink);
  background: var(--ivory);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; height:auto; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4{ font-family:var(--serif); color:var(--ink); margin:0 0 .5em; font-weight:600; line-height:1.15; }
h1{ font-size: clamp(2.1rem, 4vw, 3.4rem); letter-spacing:-0.01em; }
h2{ font-size: clamp(1.7rem, 3vw, 2.5rem); letter-spacing:-0.01em; }
h3{ font-size: 1.3rem; }
p{ margin:0 0 1em; color: var(--ink-soft); }
:focus-visible{ outline:2px solid var(--amber-dark); outline-offset:2px; }
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
.section{ padding: 88px 0; }
.section-tight{ padding: 56px 0; }
.section-alt{ background: var(--paper); }
.section-ink{ background: var(--ink); color:var(--ivory); }
.section-ink h2, .section-ink h3{ color: var(--ivory); }
.section-ink p{ color:#CBBFAE; }
.section-head{ max-width:640px; margin-bottom:44px; }
.section-head p{ font-size:1.05rem; }
.rule{ width:64px; height:2px; background:var(--amber); margin-bottom:18px; border:0; }

/* ---------- Top utility strip ---------- */
.top-strip{
  background: var(--ink); color:#D9CDB9; font-size:.82rem;
}
.top-strip .container{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding-top:8px; padding-bottom:8px; flex-wrap:wrap; }
.top-strip .contacts{ display:flex; gap:18px; flex-wrap:wrap; }
.top-strip a{ display:inline-flex; align-items:center; gap:6px; color:#D9CDB9; transition:color .2s var(--ease); white-space:nowrap; }
.top-strip a:hover{ color:var(--amber); }
.top-strip svg{ width:14px; height:14px; flex:none; }
.top-strip .tagline{ color:#8A7C6C; }

/* ---------- Header / Nav ---------- */
header.site-header{position:sticky;top:0;z-index:60;background:rgba(250,247,241,.97);border-bottom:1px solid var(--c-line)}
.nav-wrap{ display:flex; align-items:center; justify-content:space-between; gap:24px; padding:14px 24px; max-width:var(--container); margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--serif); font-size:1.3rem; font-weight:700; color:var(--ink); }
.brand small{ display:block; font-family:var(--sans); font-size:.62rem; letter-spacing:.06em; color:var(--stone); font-weight:500; }
.brand svg{ width:34px; height:34px; flex:none; }

.main-nav{ display:flex; align-items:center; gap:28px; }
.main-nav a{ font-size:.95rem; color:var(--ink-soft); position:relative; padding:6px 0; }
.main-nav a::after{ content:""; position:absolute; left:0; right:100%; bottom:0; height:2px; background:var(--amber); transition:right .25s var(--ease); }
.main-nav a:hover::after, .main-nav a.active::after{ right:0; }
.main-nav a.active{ color:var(--ink); font-weight:600; }

.nav-actions{ display:flex; align-items:center; gap:14px; }
.lang-switch{ position:relative; }
.lang-switch select{
  appearance:none; -webkit-appearance:none; background:var(--paper);
  border:1px solid var(--stone-line); border-radius:var(--radius);
  padding:8px 30px 8px 12px; font-size:.86rem; color:var(--ink); cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2340352C'%3E%3Cpath d='M5 7l5 6 5-6H5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 8px center; background-size:14px;
}
.btn{
  display:inline-flex; align-items:center; gap:8px; justify-content:center;
  padding:12px 22px; border-radius:var(--radius); font-size:.92rem; font-weight:600;
  border:1px solid transparent; transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-gold{ background:var(--amber); color:#fff; }
.btn-gold:hover{ background:var(--amber-dark); box-shadow:0 6px 18px rgba(150,105,31,.35); }
.btn-outline{ background:transparent; border-color:var(--ink); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--ivory); }
.btn-ghost-light{ background:transparent; border-color:rgba(255,255,255,.4); color:#fff; }
.btn-ghost-light:hover{ background:rgba(255,255,255,.12); }
.btn-block{ width:100%; }
.btn-sm{ padding:9px 16px; font-size:.85rem; }

.nav-burger{ display:none; background:none; border:0; padding:8px; }
.nav-burger svg{ width:26px; height:26px; }

@media (max-width: 980px){
  .main-nav{ position:fixed; inset:64px 0 0 0; background:var(--ivory); flex-direction:column; align-items:flex-start; padding:24px; gap:6px; transform:translateX(100%); transition:transform .3s var(--ease); overflow-y:auto; }
  .main-nav.open{ transform:translateX(0); }
  .main-nav a{ width:100%; padding:14px 4px; border-bottom:1px solid var(--stone-line); }
  .nav-burger{ display:inline-flex; }
  .nav-actions .btn-gold-label{ display:none; }
  .top-strip .contacts a span{ display:none; }
}

/* ---------- Hero ---------- */
.hero{ position:relative; background:linear-gradient(180deg,#221B14 0%, #1C1712 100%); color:#fff; overflow:hidden; }
.hero-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap:48px; align-items:center; padding:96px 0 80px; }
.hero-eyebrow{ color:var(--amber); font-size:.86rem; font-weight:600; margin-bottom:14px; letter-spacing:.02em; }
.hero h1{ color:#fff; }
.hero p.lead{ color:#CBBFAE; font-size:1.12rem; max-width:520px; }
.hero-cta{ display:flex; gap:14px; margin-top:28px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:32px; margin-top:48px; flex-wrap:wrap; }
.hero-stats div{ min-width:110px; }
.hero-stats strong{ display:block; font-family:var(--serif); font-size:1.9rem; color:#fff; }
.hero-stats span{ font-size:.82rem; color:#A89A85; }
.hero-media{ position:relative; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-soft); }
.hero-media img{ width:100%; aspect-ratio:4/5; object-fit:cover; }
.hero-media figcaption{ position:absolute; left:0; right:0; bottom:0; padding:16px 20px; background:linear-gradient(0deg, rgba(0,0,0,.65), transparent); color:#fff; font-size:.82rem; }
@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; padding-top:56px; }
}

/* ---------- Trust bar ---------- */
.trust-bar{ background:var(--paper); border-bottom:1px solid var(--stone-line); }
.trust-bar .container{ display:flex; flex-wrap:wrap; gap:28px; justify-content:space-between; padding:22px 24px; }
.trust-item{ display:flex; align-items:center; gap:10px; color:var(--ink-soft); font-size:.88rem; }
.trust-item svg{ width:22px; height:22px; color:var(--amber-dark); flex:none; }

/* ---------- Advantage rows (editorial strip, not cards) ---------- */
.adv-list{ display:flex; flex-direction:column; }
.adv-row{ display:grid; grid-template-columns:64px 1fr; gap:22px; padding:26px 0; border-top:1px solid var(--stone-line); align-items:start; }
.adv-row:last-child{ border-bottom:1px solid var(--stone-line); }
.adv-row svg{ width:34px; height:34px; color:var(--burgundy); }
.adv-row h3{ margin-bottom:6px; }
.adv-row p{ margin:0; max-width:640px; }

/* ---------- Swatch strip (texture / color range — a legitimate sequence) ---------- */
.swatch-strip{ display:grid; grid-template-columns:repeat(6,1fr); gap:1px; background:var(--stone-line); border:1px solid var(--stone-line); }
.swatch{ background:var(--paper); padding:22px 14px; text-align:center; transition:background .2s var(--ease); }
.swatch:hover{ background:var(--ivory); }
.swatch .chip{ width:44px; height:44px; border-radius:50%; margin:0 auto 12px; border:2px solid rgba(0,0,0,.06); }
.swatch span{ font-size:.82rem; color:var(--ink-soft); display:block; }
@media (max-width:900px){ .swatch-strip{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:520px){ .swatch-strip{ grid-template-columns:repeat(2,1fr); } }

/* ---------- Product grid ---------- */
.product-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.product-card{ background:var(--paper); border:1px solid var(--stone-line); border-radius:var(--radius); overflow:hidden; transition:box-shadow .22s var(--ease), transform .22s var(--ease); }
.product-card:hover{ box-shadow:var(--shadow-soft); transform:translateY(-3px); }
.product-card .thumb{ position:relative; aspect-ratio:1/1; overflow:hidden; background:#EFE8DA; }
.product-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease); }
.product-card:hover .thumb img{ transform:scale(1.06); }
.product-card .tag{ position:absolute; top:10px; left:10px; background:var(--burgundy); color:#fff; font-size:.7rem; padding:4px 9px; border-radius:2px; }
.product-card .body{ padding:16px 16px 18px; }
.product-card h3{ font-size:1.02rem; margin-bottom:6px; font-family:var(--sans); font-weight:700; }
.product-card p{ font-size:.86rem; margin-bottom:10px; }
.product-card .meta{ display:flex; justify-content:space-between; align-items:center; font-size:.84rem; color:var(--stone); }
.product-card .price{ color:var(--burgundy); font-weight:700; }
@media (max-width:1100px){ .product-grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:760px){ .product-grid{ grid-template-columns:repeat(2,1fr); } gap:16px; }
@media (max-width:480px){ .product-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- Workshop gallery ---------- */
.gallery-grid{ display:grid; grid-template-columns:repeat(4,1fr); grid-auto-rows:150px; gap:10px; }
.gallery-grid img{ width:100%; height:100%; object-fit:cover; border-radius:2px; }
.gallery-grid .tall{ grid-row:span 2; }
@media (max-width:760px){ .gallery-grid{ grid-template-columns:repeat(2,1fr); grid-auto-rows:120px; } }

/* ---------- Testimonials ---------- */
.testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.testi-card{ background:var(--ivory); border:1px solid var(--stone-line); border-radius:var(--radius); padding:26px; }
.testi-card p{ font-style:italic; color:var(--ink-soft); }
.testi-who{ display:flex; align-items:center; gap:12px; margin-top:16px; }
.testi-who img{ width:42px; height:42px; border-radius:50%; object-fit:cover; }
.testi-who strong{ display:block; font-size:.9rem; }
.testi-who span{ font-size:.8rem; color:var(--stone); }
@media (max-width:900px){ .testi-grid{ grid-template-columns:1fr; } }

/* ---------- Split CTA / lead form ---------- */
.cta-split{ display:grid; grid-template-columns:1fr 1fr; gap:0; background:var(--paper); border:1px solid var(--stone-line); border-radius:var(--radius); overflow:hidden; }
.cta-split .info{ background:var(--ink); color:#fff; padding:48px 40px; }
.cta-split .info p{ color:#CBBFAE; }
.cta-split .form-pane{ padding:48px 40px; }
@media (max-width:860px){ .cta-split{ grid-template-columns:1fr; } }

.form-field{ margin-bottom:16px; }
.form-field label{ display:block; font-size:.86rem; margin-bottom:6px; color:var(--ink-soft); font-weight:600; }
.form-field input, .form-field textarea, .form-field select{
  width:100%; padding:12px 14px; border:1px solid var(--stone-line); border-radius:var(--radius);
  font-family:inherit; font-size:.95rem; background:var(--paper); color:var(--ink);
}
.form-field input:focus, .form-field textarea:focus{ border-color:var(--amber-dark); }
.form-note{ font-size:.78rem; color:var(--stone); margin-top:8px; }

/* ---------- Footer ---------- */
footer.site-footer{ background:var(--ink); color:#B7A98F; padding:64px 0 0; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:36px; padding-bottom:44px; border-bottom:1px solid rgba(255,255,255,.08); }
.footer-grid h4{ color:#fff; font-family:var(--sans); font-size:.92rem; letter-spacing:.02em; margin-bottom:16px; }
.footer-grid a{ display:block; color:#B7A98F; font-size:.9rem; padding:5px 0; transition:color .2s; }
.footer-grid a:hover{ color:var(--amber); }
.footer-brand p{ color:#8A7C6C; font-size:.88rem; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding:22px 0; font-size:.8rem; color:#8A7C6C; flex-wrap:wrap; gap:10px; }
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- Floating contact widget ---------- */
.float-contact{
  position:fixed; right:18px; top:50%; transform:translateY(-50%); z-index:70;
  display:flex; flex-direction:column; gap:10px; background:var(--paper);
  border:1px solid var(--stone-line); border-radius:12px; padding:10px; box-shadow:var(--shadow-soft);
}
.float-contact a{
  width:46px; height:46px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background:var(--ivory); position:relative; transition:background .2s, transform .2s;
}
.float-contact a:hover{ background:var(--amber); transform:scale(1.07); }
.float-contact a svg{ width:22px; height:22px; color:var(--ink); }
.float-contact a:hover svg{ color:#fff; }
.float-contact .fc-label{
  position:absolute; right:56px; top:50%; transform:translateY(-50%);
  background:var(--ink); color:#fff; padding:6px 12px; border-radius:4px; font-size:.78rem;
  white-space:nowrap; opacity:0; pointer-events:none; transition:opacity .18s var(--ease);
}
.float-contact a:hover .fc-label{ opacity:1; }
@media (max-width:900px){
  .float-contact{ right:8px; padding:8px; gap:8px; }
  .float-contact a{ width:40px; height:40px; }
  .float-contact a svg{ width:18px; height:18px; }
  .float-contact .fc-label{ display:none; }
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{ font-size:.84rem; color:var(--stone); padding:20px 0; }
.breadcrumb a{ color:var(--stone); }
.breadcrumb a:hover{ color:var(--amber-dark); }
.breadcrumb span.sep{ margin:0 8px; }

/* ---------- Page header banner ---------- */
.page-banner{ background:var(--ink); color:#fff; padding:56px 0 40px; }
.page-banner p{ color:#B7A98F; max-width:640px; }

/* ---------- FAQ accordion ---------- */
.faq-list{ display:flex; flex-direction:column; gap:10px; }
.faq-item{ background:var(--paper); border:1px solid var(--stone-line); border-radius:var(--radius); }
.faq-q{ width:100%; text-align:left; background:none; border:0; padding:18px 20px; display:flex; justify-content:space-between; align-items:center; gap:14px; font-weight:700; color:var(--ink); font-size:.98rem; }
.faq-q svg{ width:18px; height:18px; flex:none; transition:transform .22s var(--ease); color:var(--amber-dark); }
.faq-item.open .faq-q svg{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .28s var(--ease); }
.faq-a-inner{ padding:0 20px 18px; color:var(--ink-soft); font-size:.92rem; }
.faq-cat{ margin:36px 0 16px; font-family:var(--serif); font-size:1.2rem; }

/* ---------- Pagination ---------- */
.pagination{ display:flex; justify-content:center; gap:6px; flex-wrap:wrap; margin-top:44px; }
.pagination a, .pagination span{ min-width:38px; height:38px; padding:0 10px; display:inline-flex; align-items:center; justify-content:center; border:1px solid var(--stone-line); border-radius:var(--radius); font-size:.88rem; color:var(--ink-soft); background:var(--paper); transition:background .2s, color .2s; }
.pagination a:hover{ background:var(--ink); color:#fff; border-color:var(--ink); }
.pagination .current{ background:var(--amber); color:#fff; border-color:var(--amber); }
.pagination .disabled{ opacity:.4; pointer-events:none; }

/* ---------- Article / detail layout ---------- */
.detail-layout{ display:grid; grid-template-columns:2.2fr 1fr; gap:48px; }
.detail-main img{ border-radius:var(--radius); margin:18px 0; }
.detail-main table{ width:100%; border-collapse:collapse; margin:18px 0; font-size:.92rem; }
.detail-main table td, .detail-main table th{ border:1px solid var(--stone-line); padding:10px 12px; text-align:left; }
.spec-table{ background:var(--paper); border:1px solid var(--stone-line); border-radius:var(--radius); }
.tag-list{ display:flex; flex-wrap:wrap; gap:8px; margin:22px 0; }
.tag-pill{ background:var(--ivory); border:1px solid var(--stone-line); padding:6px 14px; border-radius:20px; font-size:.82rem; color:var(--ink-soft); }
.tag-pill:hover{ background:var(--amber); color:#fff; border-color:var(--amber); }
.prev-next{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:32px; border-top:1px solid var(--stone-line); padding-top:24px; }
.prev-next a{ padding:14px; border:1px solid var(--stone-line); border-radius:var(--radius); font-size:.88rem; }
.prev-next a:hover{ border-color:var(--amber-dark); }
.prev-next .lbl{ color:var(--stone); font-size:.76rem; display:block; margin-bottom:4px; }
.sidebar-box{ background:var(--paper); border:1px solid var(--stone-line); border-radius:var(--radius); padding:22px; margin-bottom:22px; }
.sidebar-box h4{ font-family:var(--sans); font-size:.9rem; letter-spacing:.02em; margin-bottom:14px; }
.sidebar-box li a{ display:block; padding:8px 0; border-bottom:1px solid var(--stone-line); font-size:.88rem; }
@media (max-width:900px){ .detail-layout{ grid-template-columns:1fr; } .prev-next{ grid-template-columns:1fr; } }

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
.mx-auto{ margin-left:auto; margin-right:auto; }
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
@media (max-width:860px){ .grid-2{ grid-template-columns:1fr; } }
.badge{ display:inline-block; background:rgba(192,138,51,.12); color:var(--amber-dark); font-size:.78rem; padding:5px 12px; border-radius:20px; font-weight:600; }
.visually-hidden{ position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ---------- RTL (Arabic) ---------- */
html[dir="rtl"] body{ text-align:right; }
html[dir="rtl"] .top-strip .container,
html[dir="rtl"] .nav-wrap,
html[dir="rtl"] .hero-cta,
html[dir="rtl"] .hero-stats,
html[dir="rtl"] .footer-bottom,
html[dir="rtl"] .adv-row,
html[dir="rtl"] .trust-item,
html[dir="rtl"] .testi-who,
html[dir="rtl"] .prev-next a{ direction:rtl; }
html[dir="rtl"] .adv-row{ grid-template-columns:1fr 64px; }
html[dir="rtl"] .adv-row svg{ order:2; }
html[dir="rtl"] .main-nav{ right:auto; left:0; }
html[dir="rtl"] .float-contact{ right:auto; left:18px; }
html[dir="rtl"] .fc-label{ right:auto; left:56px; }
html[dir="rtl"] .cta-split, html[dir="rtl"] .detail-layout, html[dir="rtl"] .grid-2{ direction:rtl; }
html[dir="rtl"] .lang-switch select{ background-position:left 8px center; padding:8px 12px 8px 30px; }
html[dir="rtl"] .main-nav a::after{ left:100%; right:0; }
html[dir="rtl"] .main-nav a:hover::after, html[dir="rtl"] .main-nav a.active::after{ left:0; }