/* ===== SHARED STYLES — BLICK Industries Main Site ===== */
/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  color:#1D1D1F;background:#FBFBFD;line-height:1.47059;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-0.01em;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1080px;margin:0 auto;padding:0 32px}

/* ===== COLOR SYSTEM ===== */
:root{
  --bg-white:#FBFBFD;--bg-light:#F5F5F7;--bg-card:#FFFFFF;
  --border-light:#E8E8ED;--border-mid:#D2D2D7;
  --text-heading:#1D1D1F;--text-body:#86868B;--text-subtle:#AEAEB2;
  --text-darkbg:#F5F5F7;--text-darkbg-body:#A1A1A6;
  --dark-bg:#1D1D1F;--dark-bg-deep:#000000;
  --yellow:#E8A817;--yellow-bright:#F5B828;--yellow-light:#FFF8E1;
  --yellow-border:rgba(232,168,23,0.25);--yellow-soft:rgba(232,168,23,0.08);
}

/* ===== HEADER ===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(251,251,253,0.8);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:0.5px solid var(--border-light);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:52px}
.logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:1.1rem;color:var(--text-heading);letter-spacing:-0.02em}
.logo-icon{width:28px;height:28px;background:var(--dark-bg);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--yellow-bright);font-weight:700;font-size:.7rem}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links>a,.nav-dropdown>a{
  font-size:.82rem;font-weight:400;color:var(--text-body);transition:color .2s;
  letter-spacing:-0.01em;padding:16px 16px;display:block;cursor:pointer;
}
.nav-links>a:hover,.nav-links>a.active,.nav-dropdown:hover>a,.nav-dropdown.active>a{color:var(--text-heading)}
.nav-cta{background:var(--yellow);color:var(--dark-bg)!important;padding:7px 18px!important;border-radius:20px;font-weight:500!important;font-size:.8rem!important;transition:background .2s;margin-left:8px}
.nav-cta:hover{background:var(--yellow-bright)}

/* ===== MEGA MENU ===== */
.nav-dropdown{position:relative}
.nav-dropdown>a{position:relative}
.nav-dropdown>a::after{content:'';position:absolute;bottom:10px;left:16px;right:16px;height:1.5px;background:var(--yellow);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-dropdown:hover>a::after,.nav-dropdown.active>a::after{transform:scaleX(1)}
.mega-panel{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  background:var(--bg-card);border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.12),0 0 0 .5px var(--border-light);
  padding:0;display:flex;opacity:0;visibility:hidden;
  transition:opacity .25s,transform .25s,visibility .25s;
  z-index:999;min-width:620px;overflow:hidden;
}
.nav-dropdown:hover .mega-panel,
.mega-panel.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega-illustration{
  width:200px;flex-shrink:0;background:linear-gradient(160deg,#F0FDF4,#FFF8E1);
  display:flex;align-items:center;justify-content:center;padding:32px 24px;
  position:relative;overflow:hidden;
}
.mega-illustration::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 30% 60%,rgba(232,168,23,.12) 0%,transparent 60%);
}
.mega-illustration .illu-text{
  position:relative;z-index:1;text-align:center;
  font-size:.72rem;font-weight:500;color:var(--text-subtle);line-height:1.6;
}
.mega-illustration .illu-icon{font-size:2.8rem;margin-bottom:12px;display:block}
.mega-links{padding:28px 36px;flex:1;display:flex;gap:48px}
.mega-col{flex:1}
.mega-col h4{font-size:.7rem;font-weight:600;color:var(--text-subtle);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.mega-col ul{display:flex;flex-direction:column;gap:10px}
.mega-col ul a{
  font-size:.84rem;color:var(--text-body);transition:all .15s;display:block;padding:2px 0;
}
.mega-col ul a:hover{color:var(--text-heading);padding-left:4px}
.mega-panel-line{position:absolute;top:0;left:0;right:0;height:2px;background:var(--yellow)}
.mobile-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;padding:6px;background:none;border:none}
.mobile-toggle span{display:block;width:20px;height:1.5px;background:var(--text-heading);border-radius:1px}

/* ===== HERO (homepage) ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:var(--dark-bg-deep);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 40%,rgba(232,168,23,0.06) 0%,transparent 60%)}
.hero-line{position:absolute;z-index:0;opacity:.08}
.hero-line-top{top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--yellow),transparent)}
.hero-content{position:relative;z-index:2;max-width:780px;padding:120px 0 80px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.75rem;font-weight:500;color:var(--yellow);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:32px}
.hero-eyebrow::before{content:'';width:24px;height:1px;background:var(--yellow);display:block}
.hero h1{font-size:clamp(2.6rem,5.5vw,4.2rem);font-weight:700;line-height:1.07;color:var(--text-darkbg);letter-spacing:-0.025em;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--yellow)}
.hero-subtitle{font-size:1.15rem;color:var(--text-darkbg-body);line-height:1.6;max-width:560px;margin-bottom:40px}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:24px;font-weight:500;font-size:.9rem;transition:all .2s;cursor:pointer;border:none;letter-spacing:-0.01em}
.btn-primary{background:var(--yellow);color:var(--dark-bg)}
.btn-primary:hover{background:var(--yellow-bright);transform:scale(1.02)}
.btn-outline{background:transparent;color:var(--text-darkbg);border:1px solid rgba(255,255,255,.2)}
.btn-outline:hover{border-color:rgba(255,255,255,.45);background:rgba(255,255,255,.04)}
.hero-scroll{position:absolute;bottom:36px;left:50%;transform:translateX(-50%);z-index:2;color:var(--text-darkbg-body);font-size:.7rem;letter-spacing:0.1em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:8px;animation:bob 2.2s ease-in-out infinite}
@keyframes bob{0%,100%{opacity:.3;transform:translateX(-50%) translateY(0)}50%{opacity:1;transform:translateX(-50%) translateY(6px)}}

/* ===== DATA BANNER ===== */
.data-banner{background:var(--bg-white)}
.data-banner .container{border-bottom:0.5px solid var(--border-light)}
.data-grid{display:grid;grid-template-columns:repeat(5,1fr);padding:56px 0}
.data-item{text-align:center;padding:0 20px;position:relative}
.data-item+.data-item::before{content:'';position:absolute;left:0;top:20%;bottom:20%;width:0.5px;background:var(--border-light)}
.data-number{font-size:2.8rem;font-weight:700;color:var(--yellow);line-height:1.1;margin-bottom:6px;letter-spacing:-0.02em;font-feature-settings:"tnum"}
.data-label{font-size:.8rem;color:var(--text-body);font-weight:400;line-height:1.4}

/* ===== SECTION COMMON ===== */
.section{padding:120px 0}
.section-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.7rem;font-weight:500;color:var(--yellow);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:18px}
.section-eyebrow::before{content:'';width:20px;height:1px;background:var(--yellow);display:block}
.section-title{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;line-height:1.15;color:var(--text-heading);letter-spacing:-0.025em;margin-bottom:18px}
.section-desc{font-size:1.05rem;color:var(--text-body);max-width:560px;line-height:1.55;letter-spacing:-0.01em}
.section-header-center{text-align:center;max-width:680px;margin:0 auto 72px}
.section-header-center .section-desc{margin:0 auto}

/* ===== CTA ===== */
.cta-section{background:var(--dark-bg);text-align:center;color:var(--text-darkbg);padding:100px 0;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--yellow);opacity:.6}
.cta-section h2{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;margin-bottom:14px;position:relative;letter-spacing:-0.025em}
.cta-section p{font-size:1.05rem;color:var(--text-darkbg-body);max-width:520px;margin:0 auto 36px;position:relative;line-height:1.55}
.cta-buttons{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;position:relative}
.btn-ghost{background:transparent;color:var(--yellow);padding:13px 28px;border:1px solid var(--yellow);border-radius:24px;font-weight:500;font-size:.9rem;cursor:pointer;transition:all .2s}
.btn-ghost:hover{background:var(--yellow);color:var(--dark-bg)}

/* ===== FOOTER ===== */
.footer{background:var(--bg-light);padding:72px 0 0;color:var(--text-body)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px;border-bottom:0.5px solid var(--border-light)}
.footer-col h4{font-size:.7rem;font-weight:600;color:var(--text-heading);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col ul a{font-size:.82rem;color:var(--text-body);transition:color .15s;letter-spacing:-0.01em}
.footer-col ul a:hover{color:var(--text-heading)}
.footer-brand .logo{margin-bottom:12px}
.footer-brand p{font-size:.82rem;line-height:1.55;margin-bottom:14px}
.footer-social{display:flex;gap:8px}
.footer-social a{width:32px;height:32px;border-radius:8px;background:var(--bg-white);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--text-body);transition:all .15s;border:0.5px solid var(--border-light)}
.footer-social a:hover{color:var(--text-heading);border-color:var(--border-mid)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;flex-wrap:wrap;gap:12px}
.footer-bottom p,.footer-bottom a{font-size:.78rem;color:var(--text-subtle)}
.footer-bottom a:hover{color:var(--text-body)}

/* ===== PAGE HERO (inner pages) ===== */
.page-hero{background:var(--bg-light);padding:100px 0 64px;border-bottom:0.5px solid var(--border-light)}
.page-hero h1{font-size:clamp(2rem,3.5vw,2.8rem);font-weight:700;letter-spacing:-0.025em;color:var(--text-heading);margin-bottom:12px}
.page-hero p{font-size:1.05rem;color:var(--text-body);max-width:640px;line-height:1.55}
.page-content{padding:80px 0}
.page-content .prose{max-width:720px}
.page-content .prose h2{font-size:1.6rem;font-weight:700;color:var(--text-heading);margin:48px 0 16px;letter-spacing:-0.02em}
.page-content .prose h2:first-child{margin-top:0}
.page-content .prose p{font-size:.95rem;color:var(--text-body);line-height:1.7;margin-bottom:20px}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .data-grid{grid-template-columns:repeat(3,1fr);gap:28px 0}
  .data-item:nth-child(n+4){display:none}
  .footer-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .mobile-toggle{display:flex}
  .hero h1{font-size:2.2rem}.hero-subtitle{font-size:1rem}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .data-item:nth-child(3){display:block}.data-item:nth-child(n+4){display:none}
  .data-number{font-size:2.2rem}
  .section{padding:80px 0}
  .section-title{font-size:1.8rem}
  .page-hero h1{font-size:1.8rem}
  .cta-section h2{font-size:1.8rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .data-grid{grid-template-columns:1fr 1fr}
  .hero-buttons,.cta-buttons{flex-direction:column}
  .hero-buttons .btn,.cta-buttons .btn{justify-content:center}
}