/* ============================================================
   SHULEN — Business Travel Products
   v2 · Navy / white / warm gray · Helvetica
   ============================================================ */

:root{
  --navy:#0C2340;
  --navy-2:#16355C;
  --blue:#2563EB;
  --blue-dark:#1D4ED8;
  --blue-soft:#EDF3FE;
  --ink:#1A2332;
  --gray:#5C6B7E;
  --gray-light:#9AA7B6;
  --line:#E3E8EE;
  --line-dark:#D3DAE3;
  --bg:#F7F8FA;
  --white:#FFFFFF;
  --shadow:0 1px 2px rgba(12,35,64,.05),0 6px 24px rgba(12,35,64,.07);
  --shadow-lg:0 2px 4px rgba(12,35,64,.06),0 16px 44px rgba(12,35,64,.13);
  --font:"Helvetica Neue",Helvetica,Arial,"Segoe UI",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--navy);color:#fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ---------- Typography ---------- */
h1,h2,h3,h4{line-height:1.15;font-weight:700;color:var(--navy);letter-spacing:-.015em}
h1{font-size:clamp(1.9rem,3.8vw,2.8rem)}
h2{font-size:clamp(1.5rem,2.7vw,2.05rem)}
h3{font-size:1.18rem}
.lead{font-size:1.1rem;color:var(--gray);max-width:700px;line-height:1.7}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:.75rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);margin-bottom:16px}
.eyebrow::before{content:"";width:28px;height:1.5px;background:var(--blue);flex:none}
.section-head.center .eyebrow{justify-content:center}
.section-head.center .eyebrow::before{display:none}
.section-head.center .eyebrow::after{display:none}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{margin-top:14px;color:var(--gray);font-size:1.03rem;line-height:1.7}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:6px;font-weight:600;font-size:.93rem;border:1.5px solid transparent;transition:background .2s,color .2s,border-color .2s,box-shadow .2s;line-height:1.25;letter-spacing:.01em}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--blue-dark)}
.btn-accent{background:var(--blue);color:#fff}
.btn-accent:hover{background:var(--blue-dark)}
.btn-outline{border-color:var(--line-dark);color:var(--navy);background:#fff}
.btn-outline:hover{border-color:var(--navy)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:var(--blue-soft)}
.btn-ghost{color:var(--blue);padding:13px 4px;font-weight:600}
.btn-ghost:hover{color:var(--navy)}
.btn-inverse{border-color:rgba(255,255,255,.45);color:#fff}
.btn-inverse:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ---------- Icons ---------- */
.ic svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Sections ---------- */
.section{padding:92px 0}
.section.tight{padding:60px 0}
.section.alt{background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.alt+.section.alt{border-top:0}
.section.dark{background:var(--navy);color:#fff}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark p{color:rgba(255,255,255,.75)}
.section.dark .eyebrow{color:#8FB4EE}
.section.dark .eyebrow::before{background:#8FB4EE}

/* ---------- Top bar ---------- */
.topbar{background:var(--navy);color:rgba(255,255,255,.8);font-size:.8rem;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a:hover{color:#fff}
.topbar-contacts{display:flex;gap:24px;flex-wrap:wrap}
.topbar-note{letter-spacing:.1em;text-transform:uppercase;font-weight:600;font-size:.72rem;color:#8FB4EE}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:28px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:40px;width:auto;border-radius:6px}
.brand-name{font-weight:800;font-size:1.22rem;color:var(--navy);letter-spacing:.14em}
.main-nav ul{display:flex;gap:30px;align-items:center}
.main-nav a{display:block;padding:26px 0;font-weight:500;font-size:.94rem;color:var(--ink);position:relative;transition:color .2s}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.main-nav a:hover,.main-nav a.active{color:var(--navy)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.has-dropdown{position:static}
.main-nav .caret{width:11px;height:11px;margin-left:5px;vertical-align:-1px;display:inline-block;transition:transform .2s}
.has-dropdown:hover .caret,.has-dropdown:focus-within .caret{transform:rotate(180deg)}

/* ---------- Mega menu ---------- */
.mega{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 24px 48px rgba(12,35,64,.14);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .22s,transform .22s,visibility .22s}
.has-dropdown:hover .mega,.has-dropdown:focus-within .mega{opacity:1;visibility:visible;transform:none}
.mega a{padding:0}
.mega a::after{display:none}
.mega-inner{display:grid;grid-template-columns:250px 1fr;gap:36px;padding-top:32px;padding-bottom:28px}
.mega-side{border-right:1px solid var(--line);padding-right:32px}
.mega-kicker{display:block;font-size:.72rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);margin-bottom:12px}
.mega-side p{font-size:.86rem;color:var(--gray);line-height:1.65;margin-bottom:16px;font-weight:400}
.mega-all{font-weight:600;color:var(--blue);font-size:.9rem}
.mega-all:hover{text-decoration:underline;text-underline-offset:3px}
.mega-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mega-card{display:block;border-radius:10px;padding:10px 10px 12px;transition:background .15s}
.mega-card:hover{background:var(--bg)}
.mega-thumb{display:block;aspect-ratio:1/1;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-bottom:12px;background:#fff}
.mega-thumb img{width:100%;height:100%;object-fit:cover}
.mega-card strong{display:block;color:var(--navy);font-size:.94rem;font-weight:600}
.mega-card:hover strong{color:var(--blue)}
.mega-card .mega-desc{display:block;font-size:.79rem;color:var(--gray);margin-top:3px;line-height:1.45;font-weight:400}
.mega-foot{background:var(--bg);border-top:1px solid var(--line)}
.mega-foot-inner{display:flex;gap:22px;align-items:center;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.mega-foot-label{font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray-light)}
.mega-foot-links{display:flex;gap:22px;flex-wrap:wrap;font-size:.85rem}
.mega-foot-links a{color:var(--gray);font-weight:500}
.mega-foot-links a:hover{color:var(--blue)}
.nav-cta{flex:none;padding:11px 22px}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;position:relative}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);margin:5px auto;transition:.25s}

/* ---------- Hero slider ---------- */
.hero-slider{position:relative;overflow:hidden;background:var(--navy)}
.hero-track{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.hero-slide{min-width:100%;position:relative}
.hero-slide img{width:100%;height:auto}
.hero-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.hero-dots button{width:26px;height:3px;border-radius:3px;border:0;background:rgba(255,255,255,.35);transition:.25s;padding:0}
.hero-dots button.active{background:#fff;width:38px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(12,35,64,.25);color:#fff;font-size:1.25rem;backdrop-filter:blur(3px);transition:.2s;line-height:1}
.hero-arrow:hover{background:rgba(12,35,64,.55)}
.hero-arrow.prev{left:20px}.hero-arrow.next{right:20px}

/* ---------- Intro band ---------- */
.intro-band{background:#fff;border-bottom:1px solid var(--line);padding:40px 0}
.intro-band .container{display:flex;gap:48px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.intro-band h1{font-size:clamp(1.35rem,2.3vw,1.85rem);max-width:660px;font-weight:700}
.intro-band p{color:var(--gray);max-width:560px;margin-top:10px;font-size:.97rem}

/* ---------- Trust bar ---------- */
.trust-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:26px 22px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0}
.trust-item strong{display:block;color:var(--navy);font-size:1rem;margin-bottom:3px;letter-spacing:-.01em}
.trust-item span{color:var(--gray);font-size:.84rem;line-height:1.5;display:block}

/* ---------- Grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ---------- Category cards ---------- */
.cat-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:10px;transition:box-shadow .25s,border-color .25s;display:flex;flex-direction:column}
.cat-card:hover{box-shadow:var(--shadow-lg);border-color:var(--line-dark)}
.cat-card .cat-img{aspect-ratio:1/1;overflow:hidden;background:#fff}
.cat-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.cat-card:hover img{transform:scale(1.035)}
.cat-body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column;border-top:1px solid var(--line)}
.cat-body h3{margin-bottom:7px;font-size:1.08rem}
.cat-body p{color:var(--gray);font-size:.89rem;flex:1;line-height:1.6}
.cat-link{margin-top:15px;font-weight:600;color:var(--blue);font-size:.88rem}
.cat-card:hover .cat-link{text-decoration:underline;text-underline-offset:3px}

/* ---------- Product cards ---------- */
.product-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:box-shadow .25s,border-color .25s;display:flex;flex-direction:column}
.product-card:hover{box-shadow:var(--shadow-lg);border-color:var(--line-dark)}
.product-card .p-img{aspect-ratio:1/1;background:#fff;overflow:hidden}
.product-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.product-card:hover img{transform:scale(1.03)}
.p-body{padding:19px 22px 22px;border-top:1px solid var(--line);flex:1;display:flex;flex-direction:column}
.p-tag{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gray-light);margin-bottom:7px}
.p-body h3{font-size:1.02rem;margin-bottom:6px}
.p-body h3 a:hover{color:var(--blue)}
.p-body p{font-size:.87rem;color:var(--gray);flex:1;line-height:1.6}
.p-meta{margin-top:14px;padding-top:13px;border-top:1px dashed var(--line);display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:.82rem}
.p-meta .moq{color:var(--gray-light);letter-spacing:.02em}
.p-meta .link{color:var(--blue);font-weight:600;white-space:nowrap}

/* ---------- Feature rows ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:68px;align-items:center;padding:42px 0}
.feature-row .f-img{border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.feature-row.reverse .f-img{order:2}
.feature-row h3{font-size:1.45rem;margin-bottom:14px;letter-spacing:-.02em}
.feature-row p{color:var(--gray);line-height:1.75}
.feature-row ul{margin-top:18px}
.feature-row li{padding:7px 0 7px 28px;position:relative;color:var(--ink);font-size:.96rem}
.feature-row li::before{content:"";position:absolute;left:2px;top:15px;width:9px;height:5px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}

/* ---------- Icon cards ---------- */
.icon-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px 26px;transition:box-shadow .25s}
.icon-card:hover{box-shadow:var(--shadow)}
.icon-card .ic{width:46px;height:46px;border-radius:9px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.icon-card h3{font-size:1.04rem;margin-bottom:8px}
.icon-card p{font-size:.9rem;color:var(--gray);line-height:1.65}
.section.dark .icon-card{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}
.section.dark .icon-card .ic{background:rgba(143,180,238,.15);color:#8FB4EE}
.section.dark .icon-card p{color:rgba(255,255,255,.7)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.step{padding:32px 28px;border-left:1px solid var(--line);position:relative}
.step:first-child{border-left:0}
.step .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;border:1.5px solid var(--blue);color:var(--blue);font-size:.85rem;font-weight:700;margin-bottom:18px}
.step h3{font-size:1.02rem;margin-bottom:8px}
.step p{font-size:.88rem;color:var(--gray);line-height:1.6}
.steps.qc{grid-template-columns:repeat(3,1fr)}
.steps.qc .num{width:auto;border-radius:6px;padding:0 10px;height:30px;font-size:.78rem;letter-spacing:.08em}

/* ---------- Scenario strip ---------- */
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scenario{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:3/4}
.scenario img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.scenario:hover img{transform:scale(1.045)}
.scenario .s-label{position:absolute;left:0;right:0;bottom:0;padding:48px 18px 16px;background:linear-gradient(transparent,rgba(12,35,64,.82));color:#fff;font-weight:600;font-size:.92rem}

/* ---------- Testimonials ---------- */
.quote-card{background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:0 10px 10px 0;padding:28px 28px 24px;display:flex;flex-direction:column;gap:16px}
.quote-card .stars{color:#E9A23B;letter-spacing:2px;font-size:.88rem}
.quote-card blockquote{color:var(--ink);font-size:.96rem;flex:1;line-height:1.7}
.quote-card .who strong{color:var(--navy);font-size:.92rem;display:block}
.quote-card .who span{color:var(--gray-light);font-size:.81rem}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto;border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 56px 20px 26px;font-weight:600;color:var(--navy);position:relative;font-size:1rem;transition:background .15s}
.faq-item summary:hover{background:var(--bg)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:26px;top:50%;width:9px;height:9px;border-right:1.8px solid var(--gray);border-bottom:1.8px solid var(--gray);transform:translateY(-70%) rotate(45deg);transition:.25s}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq-item .faq-a{padding:2px 26px 22px;color:var(--gray);font-size:.95rem;line-height:1.7;max-width:720px}
.faq-item .faq-a p+p{margin-top:10px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--navy);color:#fff;border-radius:14px;padding:58px 56px;display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;border:56px solid rgba(255,255,255,.045)}
.cta-band h2{color:#fff;max-width:540px;position:relative}
.cta-band p{color:rgba(255,255,255,.72);margin-top:12px;max-width:520px;position:relative}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{padding:16px 0;font-size:.83rem;color:var(--gray-light);border-bottom:1px solid var(--line);background:var(--bg)}
.breadcrumbs ol{display:flex;gap:8px;flex-wrap:wrap}
.breadcrumbs li+li::before{content:"›";margin-right:8px;color:var(--gray-light)}
.breadcrumbs a{color:var(--gray)}
.breadcrumbs a:hover{color:var(--blue)}
.breadcrumbs [aria-current]{color:var(--navy);font-weight:600}

/* ---------- Product hero ---------- */
.product-hero{background:linear-gradient(150deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;padding:76px 0}
.product-hero .container{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
.product-hero h1{color:#fff;font-size:clamp(1.75rem,3.3vw,2.5rem)}
.product-hero .tagline{color:#8FB4EE;font-weight:700;letter-spacing:.18em;text-transform:uppercase;font-size:.76rem;margin-bottom:18px;display:block}
.product-hero p{color:rgba(255,255,255,.8);margin-top:18px;font-size:1.03rem;line-height:1.75;max-width:560px}
.product-hero .hero-badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:26px}
.product-hero .badge{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);padding:6px 14px;border-radius:5px;font-size:.8rem;font-weight:500;color:rgba(255,255,255,.9)}
.product-hero .hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.product-hero .ph-img{border-radius:12px;overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,.35)}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:92px 1fr;gap:16px}
.gallery-thumbs{display:flex;flex-direction:column;gap:10px}
.gallery-thumbs button{border:1.5px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;padding:0;transition:border-color .2s}
.gallery-thumbs button.active{border-color:var(--navy)}
.gallery-thumbs button:hover{border-color:var(--gray-light)}
.gallery-main{border-radius:10px;overflow:hidden;border:1px solid var(--line);background:#fff}
.gallery-main img{width:100%}

/* ---------- Tables ---------- */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:.94rem}
.spec-table th,.spec-table td{padding:13px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{width:36%;color:var(--navy);font-weight:600;background:var(--bg);border-right:1px solid var(--line)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-note{margin-top:13px;font-size:.83rem;color:var(--gray-light)}

.compare-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:.92rem}
.compare-table th,.compare-table td{padding:13px 18px;border-bottom:1px solid var(--line);text-align:left}
.compare-table thead th{background:var(--navy);color:#fff;font-weight:600;font-size:.88rem;letter-spacing:.03em}
.compare-table tbody th{background:var(--bg);color:var(--navy);font-weight:600;width:28%;border-right:1px solid var(--line)}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}

/* ---------- OEM strip ---------- */
.oem-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}

/* ---------- Forms ---------- */
.inquiry-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:start}
.form-card{background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:38px;border:1px solid var(--line)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:.84rem;font-weight:600;color:var(--navy)}
.form-field input,.form-field select,.form-field textarea{padding:12px 14px;border:1.5px solid var(--line-dark);border-radius:7px;font-family:inherit;font-size:.94rem;background:#fff;transition:border-color .2s;color:var(--ink)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--blue)}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--gray-light)}
.form-note{font-size:.79rem;color:var(--gray-light);margin-top:12px}
.form-status{margin-top:14px;font-size:.92rem;font-weight:600;display:none}
.form-status.ok{display:block;color:#15803D}
.form-status.err{display:block;color:#B91C1C}
.check-list li{padding:8px 0 8px 30px;position:relative;font-size:.97rem}
.check-list li::before{content:"";position:absolute;left:3px;top:16px;width:10px;height:6px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}
.check-list strong{color:var(--navy)}

/* ---------- Contact ---------- */
.office-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:30px 32px}
.office-card h3{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:1.08rem}
.office-card .flag{font-size:.68rem;font-weight:700;letter-spacing:.1em;background:var(--navy);color:#fff;border-radius:4px;padding:3px 8px}
.office-card address{font-style:normal;color:var(--gray);font-size:.94rem;line-height:1.75}
.office-card a{color:var(--blue);font-weight:600}
.contact-line{display:flex;gap:10px;margin-top:9px;font-size:.94rem}
.contact-line strong{color:var(--navy);min-width:92px;display:inline-block;font-weight:600}

/* ---------- Blog ---------- */
.post-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:box-shadow .25s;display:flex;flex-direction:column}
.post-card:hover{box-shadow:var(--shadow-lg)}
.post-card .post-img{aspect-ratio:16/10;overflow:hidden;background:var(--bg)}
.post-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.post-card:hover img{transform:scale(1.035)}
.post-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.post-meta{font-size:.78rem;color:var(--gray-light);margin-bottom:10px;display:flex;gap:12px;flex-wrap:wrap}
.post-meta .cat{color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.1em}
.post-body h3{font-size:1.08rem;margin-bottom:10px;line-height:1.35}
.post-body h3 a:hover{color:var(--blue)}
.post-body p{font-size:.89rem;color:var(--gray);flex:1;line-height:1.65}
.post-body .read-more{margin-top:15px;font-weight:600;color:var(--blue);font-size:.88rem}
.post-card:hover .read-more{text-decoration:underline;text-underline-offset:3px}

/* ---------- Article ---------- */
.article-hero{background:var(--bg);padding:60px 0 44px;border-bottom:1px solid var(--line)}
.article-hero .container{max-width:840px}
.article-hero h1{font-size:clamp(1.7rem,3.2vw,2.4rem);line-height:1.2}
.article-meta{display:flex;gap:18px;color:var(--gray);font-size:.88rem;margin-top:18px;flex-wrap:wrap}
.article-body{max-width:780px;margin:0 auto;padding:52px 28px 36px;font-size:1.04rem;color:#2A3648;line-height:1.75}
.article-body h2{margin:42px 0 16px;font-size:1.5rem}
.article-body h3{margin:30px 0 12px;font-size:1.17rem}
.article-body p{margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 20px 22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--blue);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.91rem}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg);color:var(--navy)}
.article-body blockquote{border-left:3px solid var(--blue);padding:4px 0 4px 22px;margin:24px 0;color:var(--gray);font-style:italic}
.article-body .key-takeaways{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:26px 30px;margin:6px 0 36px}
.article-body .key-takeaways h2{margin:0 0 12px;font-size:1.05rem;letter-spacing:.02em;text-transform:uppercase;color:var(--navy)}
.article-body .key-takeaways ul{margin-bottom:0;font-size:.97rem}

/* ---------- Footer ---------- */
.pre-footer{padding:0 0 92px}
.site-footer{background:var(--navy);color:rgba(255,255,255,.7);font-size:.91rem}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.35fr;gap:48px;padding:62px 0 46px}
.footer-brand img{height:42px;margin-bottom:18px;border-radius:7px}
.footer-brand p{max-width:300px;font-size:.88rem;line-height:1.7}
.site-footer h4{color:#fff;font-size:.82rem;margin-bottom:18px;letter-spacing:.14em;text-transform:uppercase;font-weight:700}
.site-footer li{margin-bottom:10px}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;align-items:baseline;line-height:1.55}
.footer-contact strong{color:#8FB4EE;font-weight:600;white-space:nowrap;font-size:.84rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem;color:rgba(255,255,255,.45)}

/* ---------- Social rail (right center) ---------- */
.social-rail{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:290;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);border-radius:8px 0 0 8px;overflow:visible}
.sr-item{position:relative;display:flex;align-items:center;justify-content:center;width:46px;height:46px;background:var(--navy);color:#fff;border:0;border-bottom:1px solid rgba(255,255,255,.14);cursor:pointer;transition:background .18s}
.sr-item:first-child{border-radius:8px 0 0 0}
.sr-item:last-child{border-radius:0 0 0 8px;border-bottom:0}
.sr-item svg{width:21px;height:21px;fill:none}
.sr-item.sr-mail{background:var(--navy)}
.sr-item.sr-tel{background:var(--navy-2)}
.sr-item.sr-wa{background:#25D366}
.sr-item.sr-wa svg{fill:#fff;width:24px;height:24px}
.sr-item.sr-wechat{background:#07C160}
.sr-item.sr-in{background:#0A66C2}
.sr-item.sr-quote{background:var(--blue)}
.sr-item:hover{filter:brightness(1.12)}
.sr-label{position:absolute;right:100%;top:50%;transform:translateY(-50%) translateX(6px);background:var(--navy);color:#fff;font-size:.83rem;font-weight:500;line-height:1;padding:12px 15px;border-radius:6px;white-space:nowrap;opacity:0;visibility:hidden;transition:opacity .18s,transform .18s;margin-right:9px;box-shadow:var(--shadow-lg);pointer-events:none}
.sr-label::after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:5px solid transparent;border-left-color:var(--navy)}
.sr-item:hover .sr-label,.sr-item:focus-visible .sr-label{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}

/* ---------- Back to top ---------- */
.to-top{position:fixed;right:20px;bottom:20px;z-index:300;width:46px;height:46px;border-radius:8px;background:#fff;border:1px solid var(--line-dark);color:var(--navy);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s,visibility .25s,background .18s,color .18s}
.to-top svg{width:20px;height:20px}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---------- Inquiry form (shared) ---------- */
.inquiry-form button[disabled]{opacity:.6;cursor:wait}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- Responsive ---------- */
@media(max-width:1020px){
  .grid-4,.oem-strip,.scenario-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(3){border-left:0}
  .step:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-main{grid-template-columns:1fr 1fr}
  .product-hero .container{grid-template-columns:1fr;gap:40px}
  .inquiry-wrap{grid-template-columns:1fr;gap:40px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(3){border-left:0}
  .trust-item:nth-child(n+3){border-top:1px solid var(--line)}
}
@media(max-width:820px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .feature-row{grid-template-columns:1fr;gap:26px;padding:30px 0}
  .feature-row.reverse .f-img{order:0}
  .section{padding:64px 0}
  .cta-band{padding:42px 30px}
  .nav-toggle{display:block}
  .main-nav{position:fixed;inset:74px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);padding:12px 28px 26px;transform:translateY(-130%);transition:.3s;max-height:calc(100vh - 74px);overflow:auto}
  .main-nav.open{transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .main-nav a::after{display:none}
  .mega{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;display:none}
  .has-dropdown.open .mega{display:block}
  .mega-inner{grid-template-columns:1fr;gap:0;padding:4px 0 10px}
  .mega-side{display:none}
  .mega-cards{grid-template-columns:1fr;gap:0}
  .mega-card{display:flex;align-items:center;gap:12px;padding:9px 0 9px 16px;border-radius:0;border-bottom:0}
  .mega-card:hover{background:none}
  .mega-thumb{width:42px;height:42px;aspect-ratio:auto;flex:none;margin:0}
  .mega-card .mega-desc{display:none}
  .mega-foot{display:none}
  .nav-cta{display:none}
  .hero-arrow{display:none}
  .gallery{grid-template-columns:1fr}
  .gallery-thumbs{flex-direction:row;order:2;overflow:auto}
  .gallery-thumbs button{width:72px;flex:none}
  .form-grid{grid-template-columns:1fr}
  .topbar-contacts{display:none}
  .sr-item{width:40px;height:40px}
  .sr-item svg{width:18px;height:18px}
  .sr-item.sr-wa svg{width:21px;height:21px}
  .to-top{width:40px;height:40px;right:14px;bottom:14px}
  .steps,.steps.qc{grid-template-columns:1fr}
  .step{border-left:0;border-top:1px solid var(--line)}
  .step:first-child{border-top:0}
}
@media(max-width:560px){
  .grid-4,.oem-strip,.scenario-grid,.trust-grid,.footer-main{grid-template-columns:1fr}
  .trust-item{border-left:0;border-top:1px solid var(--line)}
  .trust-item:first-child{border-top:0}
  .intro-band .container{flex-direction:column;align-items:flex-start}
}