/* Blue Sky Floors — style.css */
:root {
  --blue:#046bd2; --blue-dark:#034fa0; --navy:#0a1628;
  --white:#fff; --gray:#f4f6f9; --text:#1a1a2e;
  --cyan:#00b4d8; --shadow:0 4px 20px rgba(0,0,0,0.10);
  --radius:12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'PingFang SC','Microsoft YaHei',sans-serif;color:var(--text);background:#fff;line-height:1.7;}
a{color:var(--blue);text-decoration:none;}
a:hover{color:var(--blue-dark);}
ul{list-style:none;}
img{max-width:100%;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* TOPBAR */
.topbar{background:var(--navy);color:#cdd5e0;font-size:13px;padding:7px 0;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;}
.topbar a{color:#80b4e8;}
.topbar a:hover{color:#fff;}

/* NAVBAR */
.navbar{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.08);position:sticky;top:0;z-index:100;}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 0;gap:12px;}
.logo-wrap{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo-icon{width:42px;height:42px;flex-shrink:0;}
.logo-icon img{width:100%;height:100%;border-radius:6px;object-fit:cover;display:block;}
.logo-name{display:block;font-size:1.15rem;font-weight:700;color:var(--navy);}
.logo-sub{display:block;font-size:11px;color:#888;}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.nav-links>li>a{display:block;padding:8px 11px;border-radius:6px;font-size:14px;color:var(--text);font-weight:500;white-space:nowrap;}
.nav-links>li>a:hover{background:var(--gray);color:var(--blue);}
.nav-cta{background:var(--blue)!important;color:#fff!important;border-radius:8px!important;padding:8px 14px!important;font-weight:600!important;white-space:nowrap;}
.nav-cta:hover{background:var(--blue-dark)!important;}

/* DROPDOWN */
.nav-dropdown{position:relative;}
.nav-dropdown>a::after{content:' ▾';font-size:10px;}
.nav-dropdown-menu{display:none;position:absolute;top:calc(100% + 6px);left:0;background:#fff;border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,0.13);min-width:180px;padding:8px 0;z-index:200;}
.nav-dropdown-menu a{display:block;padding:9px 18px;font-size:14px;color:var(--text);white-space:nowrap;}
.nav-dropdown-menu a:hover{background:var(--gray);color:var(--blue);}
.nav-dropdown:hover .nav-dropdown-menu,.nav-dropdown.open .nav-dropdown-menu{display:block;}

/* HAMBURGER */
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);border-radius:2px;transition:.3s;}

/* HERO */
.hero{background:linear-gradient(135deg,var(--navy) 0%,#0d2c5e 60%,var(--blue) 100%);color:#fff;padding:80px 0 70px;text-align:center;}
.hero h1{font-size:2.6rem;font-weight:800;line-height:1.25;margin-bottom:18px;text-shadow:0 2px 8px rgba(0,0,0,0.2);}
.hero p{font-size:1.15rem;opacity:.88;margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto;}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* PAGE HERO */
.page-hero{background:linear-gradient(135deg,var(--navy),#0d2c5e);color:#fff;padding:50px 0 40px;}
.page-hero h1{font-size:2rem;font-weight:700;margin:10px 0 8px;}
.page-hero p{opacity:1;font-size:1rem;color:rgba(255,255,255,.92);}
.breadcrumb{font-size:13px;opacity:1;margin-bottom:8px;color:rgba(255,255,255,.8);}
.breadcrumb a{color:#a0d4ff;}
.breadcrumb a:hover{color:#fff;}

/* BUTTONS */
.btn{display:inline-block;padding:13px 28px;border-radius:8px;font-weight:600;font-size:15px;transition:.2s;cursor:pointer;border:none;}
.btn-blue{background:var(--blue);color:#fff;}
.btn-blue:hover{background:var(--blue-dark);color:#fff;}
.btn-outline-white{border:2px solid rgba(255,255,255,0.7);color:#fff;background:transparent;}
.btn-outline-white:hover{background:rgba(255,255,255,0.12);color:#fff;}
.btn-white{background:#fff;color:var(--blue);}
.btn-white:hover{background:#f0f0f0;color:var(--blue-dark);}
.btn-outline{border:2px solid var(--blue);color:var(--blue);background:transparent;}
.btn-outline:hover{background:var(--blue);color:#fff;}

/* STATS BAR */
.stats-bar{background:var(--navy);color:#fff;padding:28px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
.stat-num{font-size:1.9rem;font-weight:800;color:var(--cyan);}
.stat-label{font-size:13px;opacity:.8;margin-top:4px;}

/* SECTIONS */
.section{padding:64px 0;}
.section-alt{background:var(--gray);}
.section-title{text-align:center;margin-bottom:40px;}
.section-title h2{font-size:1.8rem;font-weight:700;color:var(--navy);}
.section-title h2::after{content:'';display:block;width:50px;height:3px;background:var(--blue);margin:10px auto 0;}
.section-title p{color:#666;margin-top:10px;font-size:1rem;}

/* CARDS */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.card-grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;}
.service-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;transition:.25s;border:1px solid #eef;}
.service-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(4,107,210,0.13);}
.service-card .card-icon{font-size:2.2rem;margin-bottom:14px;}
.service-card h3{font-size:1.1rem;font-weight:700;color:var(--navy);margin-bottom:8px;}
.service-card p{font-size:.93rem;color:#555;line-height:1.7;}
.service-card a.card-link{display:inline-block;margin-top:14px;color:var(--blue);font-size:.9rem;font-weight:600;}

/* IMAGE CARDS */
.img-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:.25s;border:1px solid #eef;text-decoration:none;color:inherit;display:block;}
.img-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(4,107,210,0.13);}
.img-card img{width:100%;height:200px;object-fit:cover;display:block;}
.img-card-body{padding:18px;}
.img-card-body h3{font-size:1.05rem;font-weight:700;color:var(--navy);margin-bottom:6px;}
.img-card-body p{font-size:.9rem;color:#555;line-height:1.6;}
.content-img{width:100%;max-width:100%;border-radius:var(--radius);margin:20px 0;box-shadow:var(--shadow);}
.img-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:20px 0;}
.img-gallery img{width:100%;height:200px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);}

/* BLOG CARDS */
.blog-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:.25s;border:1px solid #eef;}
.blog-card:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(0,0,0,0.12);}
.blog-card-img{background:linear-gradient(135deg,var(--blue),var(--navy));height:160px;display:flex;align-items:center;justify-content:center;font-size:3rem;}
.blog-card-body{padding:20px;}
.blog-card-body h3{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:8px;line-height:1.5;}
.blog-card-body h3 a{color:inherit;}
.blog-card-body p{font-size:.88rem;color:#666;line-height:1.65;}
.blog-meta{font-size:12px;color:#999;margin-top:10px;}

/* AREA GRID */
.area-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;}
.area-card{background:#fff;border-radius:10px;border:1px solid #dde5f0;padding:20px;text-align:center;transition:.2s;}
.area-card:hover{border-color:var(--blue);background:var(--gray);}
.area-card .area-icon{font-size:1.8rem;margin-bottom:8px;}
.area-card h3{font-size:.95rem;font-weight:700;color:var(--navy);}
.area-card p{font-size:.82rem;color:#777;margin-top:4px;}

/* CTA BANNER */
.cta-banner,.cta-section{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;padding:56px 0;text-align:center;}
.cta-banner h2,.cta-section h2{font-size:1.9rem;font-weight:700;margin-bottom:12px;color:#fff;}
.cta-banner p,.cta-section p{opacity:.88;margin-bottom:28px;font-size:1.05rem;color:#fff;}
.cta-banner a:not(.btn),.cta-section a:not(.btn){color:#fff;}
.cta-banner .btn-white,.cta-section .btn-white{color:var(--blue);}
.cta-banner .btn-outline-white,.cta-section .btn-outline-white{color:#fff;}

/* CONTENT PAGES */
.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:start;}
.post-content h2{font-size:1.45rem;font-weight:700;color:var(--navy);margin:28px 0 12px;}
.post-content h3{font-size:1.15rem;font-weight:600;color:var(--blue-dark);margin:20px 0 8px;}
.post-content p{margin-bottom:14px;line-height:1.8;color:#333;}
.post-content ul,.post-content ol{margin:10px 0 16px 20px;line-height:1.9;}
.post-content ul{list-style:disc;}
.post-content ol{list-style:decimal;}
.post-cta{background:linear-gradient(135deg,var(--blue),var(--navy));color:#fff;border-radius:var(--radius);padding:28px;margin-top:32px;text-align:center;}
.post-cta h3{font-size:1.2rem;margin-bottom:8px;color:#fff!important;}
.post-cta p{opacity:.88;margin-bottom:16px;font-size:.95rem;color:#fff!important;}
.post-cta a{color:#fff;}
.post-cta .btn-white{color:var(--blue);}

/* SIDEBAR */
.contact-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;border:1px solid #eef;}
.contact-card h3{font-size:1.05rem;font-weight:700;color:var(--navy);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--blue);}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;}
.contact-icon{font-size:1.2rem;min-width:24px;margin-top:2px;}
.contact-label{font-size:11px;color:#999;text-transform:uppercase;letter-spacing:.5px;}
.contact-value{font-size:.95rem;font-weight:600;color:var(--navy);}
.contact-value a{color:var(--blue);}
.sidebar-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-top:20px;border:1px solid #eef;}
.sidebar-card h3{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:12px;}
.sidebar-card ul{padding:0;}
.sidebar-card ul li{padding:6px 0;border-bottom:1px solid #f0f0f0;}
.sidebar-card ul li:last-child{border:none;}
.sidebar-card ul li a{color:var(--text);font-size:.92rem;}
.sidebar-card ul li a:hover{color:var(--blue);}

/* PRICE TABLE */
.price-table{width:100%;border-collapse:collapse;margin:20px 0;}
.price-table th{background:var(--navy);color:#fff;padding:12px 16px;text-align:left;font-size:.9rem;}
.price-table td{padding:11px 16px;border-bottom:1px solid #eee;font-size:.92rem;}
.price-table tr:nth-child(even) td{background:var(--gray);}

/* PROCESS STEPS */
.steps{display:flex;flex-direction:column;gap:20px;margin:24px 0;}
.step{display:flex;gap:16px;align-items:flex-start;}
.step-num{background:var(--blue);color:#fff;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;flex-shrink:0;}
.step-body h4{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:4px;}
.step-body p{font-size:.9rem;color:#555;}

/* WHY CHOOSE US */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;}
.why-card{text-align:center;padding:24px;}
.why-icon{font-size:2.5rem;margin-bottom:14px;}
.why-card h3{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:8px;}
.why-card p{font-size:.88rem;color:#666;}

/* GALLERY */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;}
.gallery-item{background:linear-gradient(135deg,#e8f0fb,#d0e4f7);border-radius:var(--radius);height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:2.5rem;color:var(--blue);border:1px solid #c5d8f0;}
.gallery-item p{font-size:.85rem;color:#555;margin-top:8px;}

/* FOOTER */
footer{background:var(--navy);color:#cdd5e0;padding:52px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
.footer-brand p{font-size:.88rem;line-height:1.75;margin-top:12px;opacity:.8;}
.footer-brand a{color:#80b4e8;}
.footer-logo-wrap{display:flex;align-items:center;gap:10px;margin-bottom:4px;}
.footer-logo-name{font-size:1.2rem;font-weight:700;color:#fff;}
.footer-col h4{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{padding:0;}
.footer-col ul li{margin-bottom:8px;}
.footer-col ul li a{color:#a0b4cc;font-size:.88rem;}
.footer-col ul li a:hover{color:var(--cyan);}
.footer-col ul li{color:#a0b4cc;font-size:.88rem;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:18px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;opacity:.65;}

/* BLOG LIST PAGE */
.blog-list-card{display:grid;grid-template-columns:200px 1fr;gap:24px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:24px;border:1px solid #eef;transition:.2s;}
.blog-list-card:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,0.11);}
.blog-list-img{background:linear-gradient(135deg,var(--blue),var(--navy));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:3rem;overflow:hidden;min-height:160px;}
.blog-list-img img{width:100%;height:100%;object-fit:cover;display:block;}
.blog-list-card h3{font-size:1.05rem;font-weight:700;color:var(--navy);margin-bottom:8px;}
.blog-list-card h3 a{color:inherit;}
.blog-list-card p{font-size:.9rem;color:#666;line-height:1.7;}
.blog-list-card .btn-outline{margin-top:12px;font-size:.85rem;padding:7px 18px;}

/* MOBILE */
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .content-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .nav-toggle{display:flex;}
  .nav-links{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,0.1);padding:12px 0;z-index:99;}
  .nav-links.open{display:flex;}
  .nav-links>li>a{padding:12px 20px;border-radius:0;}
  .navbar{position:relative;}
  .navbar-inner{flex-wrap:wrap;}
  .nav-dropdown-menu{position:static;box-shadow:none;padding-left:20px;}
  .nav-dropdown.open .nav-dropdown-menu{display:block;}
  .hero h1{font-size:1.8rem;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .blog-list-card{grid-template-columns:1fr;}
  .blog-list-img{height:120px;}
}
@media(max-width:480px){
  .hero h1{font-size:1.5rem;}
  .hero p{font-size:1rem;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .section{padding:44px 0;}
}

/* LANGUAGE SWITCHER */
.lang-switcher{display:flex;gap:4px;align-items:center;}
.lang-btn{background:rgba(255,255,255,0.15);color:#cdd5e0;border:1px solid rgba(255,255,255,0.25);border-radius:4px;padding:3px 8px;font-size:12px;cursor:pointer;transition:.2s;font-family:inherit;}
.lang-btn:hover{background:rgba(255,255,255,0.3);color:#fff;}
.lang-btn.active{background:var(--blue);color:#fff;border-color:var(--blue);}