/* ============================================================
   TensileTest — Qiantong Instrument · feuille de style principale
   ============================================================ */
:root{
  --navy:#0d2b4e; --navy-2:#123a66; --navy-3:#0a2140;
  --blue:#1c7ed6; --blue-2:#e7f1fb;
  --accent:#f59e0b; --accent-2:#d97706;
  --bg:#f6f8fb; --white:#fff; --ink:#1e293b; --muted:#5b6b7d;
  --line:#e3e9f1; --radius:14px; --shadow:0 10px 30px rgba(13,43,78,.10);
  --shadow-sm:0 4px 14px rgba(13,43,78,.08);
  --container:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.narrow{max-width:860px}
.center{text-align:center;margin-top:32px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:8px;top:8px}

/* ---------------- Boutons ---------------- */
.btn{display:inline-block;padding:12px 26px;border-radius:999px;font-weight:600;border:2px solid transparent;
  cursor:pointer;transition:.25s;text-align:center;font-size:15px}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#3a2a00;box-shadow:0 6px 18px rgba(245,158,11,.35)}
.btn-accent:hover{background:var(--accent-2);color:#fff}
.btn-outline{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-lg{padding:15px 34px;font-size:16px}
.btn-block{width:100%}

/* ---------------- En-tête ---------------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:78px}
.brand{display:flex;align-items:center;gap:12px;color:var(--navy)}
.brand img{width:104px;height:auto;border-radius:8px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;color:var(--navy);letter-spacing:.3px}
.brand-text small{font-size:11.5px;color:var(--muted)}
.main-nav{display:flex;gap:6px}
.main-nav a{display:block;padding:10px 14px;color:var(--ink);font-weight:600;font-size:15px;border-radius:8px}
.main-nav a:hover{background:var(--blue-2);text-decoration:none}
.main-nav a.active{color:var(--blue)}
.header-cta{margin-left:auto;white-space:nowrap}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:2px;transition:.3s}

/* ---------------- Hero accueil ---------------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(115deg,var(--navy-3) 0%,var(--navy-2) 55%,var(--navy) 100%)}
.hero-bg{position:absolute;inset:0;background:url("/img/banner.jpg") center/cover no-repeat;opacity:.35}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,33,64,.85),rgba(10,33,64,.25))}
.hero-inner{position:relative;z-index:2;padding:110px 20px 96px;max-width:var(--container);margin:0 auto}
.hero-kicker{display:inline-block;background:rgba(245,158,11,.18);color:var(--accent);border:1px solid rgba(245,158,11,.5);
  padding:6px 16px;border-radius:999px;font-size:13.5px;font-weight:600;margin-bottom:22px;letter-spacing:.4px}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.15;max-width:820px;font-weight:800;letter-spacing:-.5px}
.hero-sub{margin-top:20px;font-size:clamp(15px,1.6vw,18.5px);color:#dbe7f5;max-width:760px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-badges li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);padding:7px 15px;
  border-radius:999px;font-size:13.5px;color:#eef4fb}

/* ---------------- Bandeau chiffres ---------------- */
.stats{background:var(--navy);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:38px 20px;text-align:center}
.stats-grid strong{display:block;font-size:clamp(24px,3vw,34px);color:var(--accent);font-weight:800}
.stats-grid span{font-size:14px;color:#c6d5e6}

/* ---------------- Sections ---------------- */
.section{padding:78px 0}
.section-alt{background:var(--white)}
.section-kicker{color:var(--blue);font-weight:700;text-transform:uppercase;font-size:13.5px;letter-spacing:2px;margin-bottom:10px}
.section-title{font-size:clamp(24px,3vw,34px);color:var(--navy);line-height:1.25;letter-spacing:-.3px;
  position:relative;padding-bottom:16px;margin-bottom:22px}
.section-title::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--blue))}
.section-intro{color:var(--muted);max-width:800px;margin-bottom:34px}
.narrow .section-title::after{left:50%;transform:translateX(-50%)}
.narrow{text-align:center}
.narrow .faq-item{text-align:left}

/* ---------------- Cartes produits ---------------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:26px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:.3s;box-shadow:var(--shadow-sm)}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.product-card a{display:block;color:inherit}
.product-card a:hover{text-decoration:none}
.product-card img{width:100%;aspect-ratio:3/2;object-fit:cover;background:#fff}
.pc-body{padding:20px 22px 24px}
.pc-body h3{color:var(--navy);font-size:18.5px;margin-bottom:8px}
.pc-body p{color:var(--muted);font-size:14.5px;margin-bottom:12px}
.pc-cap{display:inline-block;background:var(--blue-2);color:var(--blue);font-size:12.5px;font-weight:700;
  padding:4px 12px;border-radius:999px}
.pc-more{display:block;margin-top:12px;color:var(--accent-2);font-weight:600;font-size:14px}

/* ---------------- Solutions ---------------- */
.sol-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:20px}
.sol-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
.sol-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.sol-card img{aspect-ratio:533/800;object-fit:cover;width:100%}
.sol-card figcaption{padding:13px 14px;font-size:14px;font-weight:600;color:var(--navy);text-align:center}

/* ---------------- Split ---------------- */
.split{display:grid;grid-template-columns:1fr 1.2fr;gap:52px;align-items:center}
.split-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.split-text p{margin-bottom:16px;color:#33455b}
.split-text .btn{margin-top:8px}
.product-media img{width:100%;max-width:520px;margin:0 auto;border:1px solid var(--line);background:#fff;padding:14px}

/* ---------------- Quick specs ---------------- */
.quick-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 24px}
.quick-specs li{background:var(--blue-2);border-radius:10px;padding:12px 16px}
.quick-specs strong{display:block;font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
.quick-specs span{font-weight:700;color:var(--navy);font-size:15px}

/* ---------------- Certifications / salle ---------------- */
.cert-grid,.room-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:22px;justify-items:center}
.cert-card,.room-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.3s;width:100%}
.cert-card:hover,.room-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.cert-card img{height:270px;width:100%;object-fit:contain;background:#fff;padding:14px}
.room-card img{aspect-ratio:1/1;object-fit:cover;width:100%}
.cert-card figcaption,.room-card figcaption{padding:12px 14px;font-size:13.5px;font-weight:600;color:var(--navy);text-align:center}

/* ---------------- Services ---------------- */
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.svc-col{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.svc-col h3{color:var(--navy);font-size:20px;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--blue-2)}
.svc-item{margin-bottom:18px}
.svc-item h4{color:var(--navy);font-size:15.5px;margin-bottom:5px}
.svc-item h4::before{content:"▸ ";color:var(--accent)}
.svc-item p{color:var(--muted);font-size:14.5px}

/* ---------------- FAQ ---------------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy);list-style:none;position:relative;padding-right:48px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--accent);transition:.25s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 22px 20px;color:#33455b}

/* ---------------- Page hero interne ---------------- */
.page-hero{background:linear-gradient(115deg,var(--navy-3),var(--navy-2));color:#fff;padding:64px 0 56px}
.page-hero h1{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.4px;line-height:1.2}
.page-hero p{color:#c9d8ea;max-width:760px;margin-top:12px}
.breadcrumb{font-size:13.5px;color:#9fb4cc;margin-bottom:16px}
.breadcrumb a{color:#c9d8ea}
.breadcrumb a:hover{color:#fff}

/* ---------------- CTA band ---------------- */
.cta-band{background:linear-gradient(100deg,var(--navy),var(--blue));color:#fff;padding:58px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(21px,2.6vw,29px);letter-spacing:-.3px}
.cta-band p{color:#dbe7f5;margin-top:6px}

/* ---------------- Fiche technique ---------------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow-sm);background:#fff}
.spec-table{width:100%;border-collapse:collapse;min-width:560px}
.spec-table caption{text-align:left;font-weight:700;color:var(--navy);padding:16px 20px;background:var(--blue-2)}
.spec-table th,.spec-table td{padding:13px 20px;border-bottom:1px solid var(--line);text-align:left;font-size:14.5px}
.spec-table th{width:46%;color:var(--navy);font-weight:600;background:#fafcfe}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.extra-block{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;
  padding:20px 24px;margin-bottom:16px;box-shadow:var(--shadow-sm);text-align:left}
.extra-block h3{color:var(--navy);font-size:17px;margin-bottom:8px}
.extra-block p{color:#33455b;font-size:15px}
.sw-list{text-align:left;padding-left:0}
.sw-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 20px;margin-bottom:10px;
  font-size:14.5px;color:#33455b;box-shadow:var(--shadow-sm)}
.sw-list strong{color:var(--navy)}
.quote{font-style:italic;color:var(--navy);background:var(--blue-2);border-left:4px solid var(--blue);
  padding:16px 22px;border-radius:0 10px 10px 0;margin:22px 0;text-align:left}

/* ---------------- Autres produits ---------------- */
.mini-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.mini-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:14px;transition:.3s;color:inherit;box-shadow:var(--shadow-sm)}
.mini-card:hover{text-decoration:none;transform:translateY(-4px);box-shadow:var(--shadow)}
.mini-card img{width:72px;height:72px;object-fit:contain;border-radius:8px;background:#fff;border:1px solid var(--line)}
.mini-card span{display:flex;flex-direction:column}
.mini-card strong{color:var(--navy);font-size:15px}
.mini-card em{font-style:normal;color:var(--muted);font-size:12.5px;line-height:1.35;margin-top:2px}

/* ---------------- Contact ---------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:52px;align-items:start}
.contact-info h2{color:var(--navy);font-size:26px;margin-bottom:14px}
.contact-info h3{color:var(--navy);font-size:18px;margin:26px 0 10px}
.contact-info p{color:#33455b;margin-bottom:10px}
.check-list li{padding:8px 0 8px 30px;position:relative;color:#33455b;border-bottom:1px dashed var(--line)}
.check-list li::before{content:"✓";position:absolute;left:4px;color:var(--accent);font-weight:800}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.contact-form h2{color:var(--navy);font-size:23px;margin-bottom:22px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-weight:600;font-size:14px;color:var(--navy);margin-bottom:7px}
.form-row label span{color:var(--accent-2)}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);
  border-radius:10px;font-size:15px;font-family:inherit;color:var(--ink);background:#fbfdff;transition:.2s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(28,126,214,.15);background:#fff}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}
.hp-field{position:absolute;left:-9999px;height:0;width:0;opacity:0}

/* ---------------- Pied de page ---------------- */
.site-footer{background:var(--navy-3);color:#b9c9dc;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.6fr 1fr;gap:40px;padding:60px 20px 44px}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:3px;background:var(--accent);border-radius:2px}
.site-footer p{font-size:14px;line-height:1.7}
.site-footer ul li{margin-bottom:9px}
.site-footer a{color:#b9c9dc;font-size:14px}
.site-footer a:hover{color:#fff}
.footer-address{font-size:13.5px;color:#8fa3bb}
.footer-motto{font-style:italic;color:#d7e3f1;margin-bottom:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13.5px;text-align:center}
.footer-bottom a{color:#8fa3bb}

/* ---------------- Responsive ---------------- */
@media (max-width:1024px){
  .header-cta{display:none}
  .split{grid-template-columns:1fr;gap:34px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .nav-toggle{display:flex}
  .main-nav{position:fixed;inset:78px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:12px 20px 22px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-130%);transition:.3s;z-index:99}
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:13px 10px;border-bottom:1px solid var(--line)}
  .hero-inner{padding:76px 20px 66px}
  .section{padding:56px 0}
  .svc-grid{grid-template-columns:1fr}
  .quick-specs{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-inner{flex-direction:column;text-align:center}
  .contact-form{padding:24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}