/*
Theme Name: Leiao Heavy Industry
Theme URI: https://3x.033777.xyz
Description: 青州雷奥重工官方网站 V4 — 深色工业风 + 工业黄(#FFCC00) + 粒子动画 + 视差滚动 + 光效扫描
Author: Leiao Dev
Version: 4.0.0
Text Domain: leiao-heavy
*/

/* ===== CSS Variables ===== */
:root {
 --bg: #060810;
 --bg2: #0a0d16;
 --bg3: #0e1219;
 --panel: #111827;
 --panel2: #1a2236;
 --panel3: #1f2a42;
 --text: #f0f4f8;
 --text2: #c4cdd8;
 --muted: #6b7a8d;
 --accent: #ffcc00;
 --accent2: #ffa500;
 --accent-dim: #b38f00;
 --accent-glow: rgba(255,204,0,.12);
 --accent-glow2: rgba(255,204,0,.25);
 --red: #ff4444;
 --green: #25d366;
 --line: rgba(255,255,255,.06);
 --line2: rgba(255,255,255,.10);
 --line3: rgba(255,204,0,.15);
 --max: 1240px;
 --shadow: 0 8px 32px rgba(0,0,0,.5);
 --shadow-accent: 0 4px 24px rgba(255,204,0,.15);
 --shadow-lg: 0 20px 60px rgba(0,0,0,.6);
 --radius: 14px;
 --radius-sm: 8px;
 --ease: cubic-bezier(.4,0,.2,1);
 --ease-out: cubic-bezier(.0,0,.2,1);
 --ease-bounce: cubic-bezier(.34,1.56,.64,1);
 --t: .35s cubic-bezier(.4,0,.2,1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
 font-family: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
 background: var(--bg);
 color: var(--text);
 line-height: 1.6;
 overflow-x: hidden;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; transition: color var(--t); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
::selection { background: var(--accent); color: #000; }

/* ===== Utility ===== */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 100px 0; position: relative; }
.accent { color: var(--accent); }

/* ===== Section Titles ===== */
.section-title {
 font-size: clamp(2rem, 4vw, 3rem);
 font-weight: 900;
 text-align: center;
 margin-bottom: 12px;
 letter-spacing: .02em;
 text-transform: uppercase;
}
.section-title .accent {
 background: linear-gradient(135deg, var(--accent), var(--accent2));
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
}
.section-subtitle {
 text-align: center;
 color: var(--muted);
 font-size: 1.05rem;
 margin-bottom: 56px;
 max-width: 640px;
 margin-left: auto;
 margin-right: auto;
 line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 52px; padding: 0 32px;
 font-size: .9rem; font-weight: 800; letter-spacing: .04em;
 border-radius: 999px; border: 2px solid transparent;
 cursor: pointer; position: relative; overflow: hidden;
 transition: all var(--t);
}
.btn-primary {
 background: linear-gradient(135deg, var(--accent), #ffd633);
 color: #111; border-color: var(--accent);
 box-shadow: 0 4px 20px rgba(255,204,0,.2);
}
.btn-primary:hover {
 transform: translateY(-3px);
 box-shadow: 0 8px 32px rgba(255,204,0,.35);
 background: linear-gradient(135deg, #ffd633, var(--accent));
}
.btn-primary::after {
 content: ''; position: absolute; inset: 0;
 background: linear-gradient(90deg, transparent, rgba(255,255,255,.3), transparent);
 transform: translateX(-100%);
 transition: transform .6s;
}
.btn-primary:hover::after { transform: translateX(100%); }

.btn-outline {
 background: transparent; color: var(--text);
 border: 2px solid var(--line2);
}
.btn-outline:hover {
 border-color: var(--accent); color: var(--accent);
 background: var(--accent-glow);
 transform: translateY(-2px);
}

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity:0; transform:translateY(40px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes pulse { 0%,100%{opacity:1;}50%{opacity:.3;} }
@keyframes glow { 0%,100%{box-shadow:0 0 20px rgba(255,204,0,.1);}50%{box-shadow:0 0 40px rgba(255,204,0,.25);} }
@keyframes scanLine { 0%{transform:translateX(-100%);}100%{transform:translateX(100%);} }
@keyframes float { 0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);} }
@keyframes rotate { from{transform:rotate(0deg);}to{transform:rotate(360deg);} }
@keyframes shimmer { 0%{background-position:-200% 0;}100%{background-position:200% 0;} }
@keyframes slideInLeft { from{opacity:0;transform:translateX(-60px);}to{opacity:1;transform:translateX(0);} }
@keyframes slideInRight { from{opacity:0;transform:translateX(60px);}to{opacity:1;transform:translateX(0);} }
@keyframes countUp { from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);} }
@keyframes borderGlow { 0%,100%{border-color:rgba(255,204,0,.15);}50%{border-color:rgba(255,204,0,.4);} }

.fade-up { opacity: 0; transform: translateY(40px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .24s; }
.delay-3 { transition-delay: .36s; }
.delay-4 { transition-delay: .48s; }

/* ===== Particles Canvas ===== */
#particles-canvas {
 position: absolute; top: 0; left: 0; width: 100%; height: 100%;
 pointer-events: none; z-index: 1;
}

/* ===== Header ===== */
.site-header {
 position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
 background: rgba(6,8,16,.6);
 backdrop-filter: blur(24px) saturate(1.8);
 -webkit-backdrop-filter: blur(24px) saturate(1.8);
 border-bottom: 1px solid transparent;
 transition: all var(--t);
}
.site-header.scrolled {
 background: rgba(6,8,16,.92);
 border-bottom-color: var(--line2);
 box-shadow: 0 4px 30px rgba(0,0,0,.4);
}
.nav-wrap {
 display: flex; align-items: center; justify-content: space-between;
 height: 76px;
}
.nav-logo {
 display: flex; align-items: center; gap: 14px;
 font-size: 1.3rem; font-weight: 900; color: var(--text);
 letter-spacing: .04em;
}
.nav-logo .logo-icon {
 width: 44px; height: 44px;
 background: linear-gradient(135deg, var(--accent), #ffd633);
 color: #111; display: flex; align-items: center; justify-content: center;
 font-weight: 900; font-size: 1rem; border-radius: 6px;
 box-shadow: 0 2px 12px rgba(255,204,0,.3);
 transition: all var(--t);
}
.nav-logo:hover .logo-icon {
 transform: rotate(-5deg) scale(1.05);
 box-shadow: 0 4px 20px rgba(255,204,0,.4);
}
.nav-logo span { color: var(--accent); }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a {
 color: var(--muted); font-size: .88rem; font-weight: 600;
 letter-spacing: .02em; padding: 8px 18px; border-radius: 8px;
 position: relative; transition: all var(--t);
}
.nav-menu a:hover { color: var(--text); background: rgba(255,255,255,.05); }
.nav-menu a.active {
 color: var(--accent);
 background: var(--accent-glow);
}
.nav-menu a::after {
 content: ''; position: absolute; bottom: 2px; left: 50%; width: 0; height: 2px;
 background: var(--accent); border-radius: 2px;
 transform: translateX(-50%); transition: width .3s var(--ease);
}
.nav-menu a.active::after, .nav-menu a:hover::after { width: 24px; }
.nav-cta .btn { min-height: 42px; padding: 0 22px; font-size: .82rem; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; cursor: pointer; gap: 5px; padding: 6px; }
.hamburger span {
 width: 24px; height: 2px; background: var(--text);
 border-radius: 2px; transition: all var(--t);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile Menu */
.mobile-menu {
 display: none; position: fixed; top: 76px; left: 0; right: 0; bottom: 0;
 background: rgba(6,8,16,.98); backdrop-filter: blur(24px); z-index: 999;
 flex-direction: column; align-items: center; justify-content: center; gap: 24px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.4rem; color: var(--text2); font-weight: 600; }
.mobile-menu a:hover { color: var(--accent); }

/* ===== HERO ===== */
.hero {
 position: relative; min-height: 100vh; display: flex; align-items: center;
 padding-top: 76px; overflow: hidden; background: var(--bg);
}
/* 粒子背景 */
.hero-particles {
 position: absolute; inset: 0; z-index: 0;
}
/* 网格线背景 */
.hero-grid {
 position: absolute; inset: 0; z-index: 0; opacity: .03;
 background-image:
  linear-gradient(rgba(255,204,0,.4) 1px, transparent 1px),
  linear-gradient(90deg, rgba(255,204,0,.4) 1px, transparent 1px);
 background-size: 80px 80px;
}
/* 光晕效果 */
.hero-glow {
 position: absolute; z-index: 0;
 width: 600px; height: 600px; border-radius: 50%;
 filter: blur(120px); opacity: .08;
}
.hero-glow-1 { top: -10%; right: -5%; background: var(--accent); }
.hero-glow-2 { bottom: -15%; left: -10%; background: var(--accent2); }

.hero-overlay {
 position: absolute; inset: 0; z-index: 1;
 background:
  radial-gradient(ellipse at 30% 50%, rgba(255,204,0,.04) 0%, transparent 50%),
  linear-gradient(180deg, rgba(6,8,16,.3) 0%, rgba(6,8,16,.1) 40%, rgba(6,8,16,.5) 100%);
}

.hero-content {
 position: relative; z-index: 2; text-align: center;
 padding: 0 24px; max-width: 960px; margin: 0 auto;
}
.hero-badge {
 display: inline-flex; align-items: center; gap: 10px;
 padding: 10px 22px; border-radius: 999px;
 background: rgba(255,204,0,.08); border: 1px solid rgba(255,204,0,.2);
 color: var(--accent); font-size: .8rem; font-weight: 700;
 letter-spacing: .12em; text-transform: uppercase;
 margin-bottom: 28px;
 animation: fadeIn .8s ease;
}
.hero-badge::before {
 content: ''; width: 8px; height: 8px; border-radius: 50%;
 background: var(--accent); animation: pulse 2s infinite;
 box-shadow: 0 0 8px rgba(255,204,0,.6);
}
.hero h1 {
 font-size: clamp(2.8rem, 6.5vw, 5rem);
 font-weight: 900; line-height: 1.05; letter-spacing: .02em;
 margin-bottom: 24px;
 animation: fadeUp .8s ease .1s both;
}
.hero h1 .accent {
 background: linear-gradient(135deg, var(--accent), var(--accent2), #ffe066);
 -webkit-background-clip: text; -webkit-text-fill-color: transparent;
 background-clip: text;
}
.hero-desc {
 font-size: clamp(1rem, 1.8vw, 1.25rem); color: var(--text2);
 margin-bottom: 44px; line-height: 1.8; max-width: 700px;
 margin-left: auto; margin-right: auto;
 animation: fadeUp .8s ease .2s both;
}
.hero-btns {
 display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
 animation: fadeUp .8s ease .3s both;
}
.hero-scroll {
 position: absolute; bottom: 36px; left: 50%;
 transform: translateX(-50%); z-index: 3;
 color: var(--muted); font-size: .8rem; text-align: center;
 animation: float 3s ease-in-out infinite;
}
.hero-scroll i { display: block; margin-top: 6px; font-size: 1.2rem; }

/* Hero机械轮廓装饰 */
.hero-machine-outline {
 position: absolute; z-index: 0; opacity: .04;
 right: -5%; bottom: 5%; width: 50vw; max-width: 700px;
 animation: float 8s ease-in-out infinite;
}

/* ===== STATS ===== */
.stats {
 background: var(--bg2);
 border-top: 1px solid var(--line);
 border-bottom: 1px solid var(--line);
 padding: 60px 0;
 position: relative;
 overflow: hidden;
}
/* 扫描线效果 */
.stats::before {
 content: ''; position: absolute; inset: 0; z-index: 1;
 background: linear-gradient(90deg, transparent, rgba(255,204,0,.03), transparent);
 animation: scanLine 6s linear infinite;
 pointer-events: none;
}
.stats-grid {
 display: grid; grid-template-columns: repeat(4, 1fr);
 gap: 1px; background: var(--line); border-radius: var(--radius);
 overflow: hidden; position: relative; z-index: 2;
}
.stat-item {
 padding: 40px 20px; background: var(--panel);
 text-align: center; transition: all var(--t);
}
.stat-item:hover { background: var(--panel2); }
.stat-number {
 font-size: clamp(2.5rem, 4vw, 3.5rem); font-weight: 900;
 color: var(--accent); line-height: 1; margin-bottom: 8px;
 text-shadow: 0 0 30px rgba(255,204,0,.15);
}
.stat-number span:last-child { font-size: 1.6rem; font-weight: 700; }
.stat-label {
 font-size: .85rem; color: var(--muted); font-weight: 600;
 text-transform: uppercase; letter-spacing: .08em;
}

/* ===== PRODUCTS ===== */
.products {
 background: var(--bg);
 position: relative;
}
.products-grid {
 display: grid; grid-template-columns: repeat(3, 1fr);
 gap: 28px;
}
.product-card {
 position: relative; overflow: hidden;
 background: linear-gradient(170deg, var(--panel), var(--bg2));
 border: 1px solid var(--line); border-radius: var(--radius);
 transition: all var(--t);
}
.product-card:hover {
 border-color: var(--line3);
 transform: translateY(-8px);
 box-shadow: 0 16px 48px rgba(255,204,0,.06), 0 0 0 1px rgba(255,204,0,.1);
}
/* 扫描光效 */
.product-card::before {
 content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
 background: linear-gradient(90deg, transparent, rgba(255,204,0,.06), transparent);
 z-index: 5; transition: left .8s var(--ease); pointer-events: none;
}
.product-card:hover::before { left: 150%; }

.product-img {
 position: relative; aspect-ratio: 16/10; overflow: hidden;
 background: linear-gradient(135deg, #0d1117, #1a2236);
}
/* 机械占位图 - 工业风渐变背景 */
.product-img-placeholder {
 width: 100%; height: 100%;
 background: linear-gradient(135deg,
  rgba(255,204,0,.05) 0%,
  rgba(255,204,0,.02) 50%,
  rgba(255,165,0,.03) 100%
 );
 display: flex; align-items: center; justify-content: center;
 flex-direction: column; gap: 8px;
}
.product-img-placeholder svg {
 width: 80px; height: 80px; opacity: .15;
 color: var(--accent);
}
.product-img-placeholder span {
 font-size: .75rem; color: var(--muted); opacity: .4;
 font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
}
.product-img img {
 width: 100%; height: 100%; object-fit: cover;
 transition: transform .8s var(--ease);
}
.product-card:hover .product-img img { transform: scale(1.06); }

.product-badge {
 position: absolute; top: 14px; left: 14px; z-index: 6;
 padding: 5px 12px; border-radius: 6px;
 background: var(--accent); color: #111;
 font-size: .7rem; font-weight: 800;
 letter-spacing: .06em; text-transform: uppercase;
 box-shadow: 0 2px 10px rgba(255,204,0,.3);
}

.product-info { padding: 28px; }
.product-info h3 {
 font-size: 1.3rem; font-weight: 800; margin-bottom: 10px;
 letter-spacing: .01em;
}
.product-info p {
 color: var(--muted); font-size: .9rem; line-height: 1.65;
 margin-bottom: 20px;
}
.product-specs {
 display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px;
}
.spec-tag {
 padding: 5px 12px; border-radius: 6px;
 background: rgba(255,255,255,.04); border: 1px solid var(--line);
 font-size: .75rem; color: var(--text2); font-weight: 600;
}
.product-link {
 display: inline-flex; align-items: center; gap: 8px;
 color: var(--accent); font-size: .88rem; font-weight: 700;
 transition: all var(--t);
}
.product-link:hover { gap: 12px; }
.product-link::after { content: '→'; transition: transform .3s; }
.product-link:hover::after { transform: translateX(3px); }

/* ===== ABOUT ===== */
.about {
 background: var(--bg2);
 position: relative; overflow: hidden;
}
.about::before {
 content: ''; position: absolute; top: 0; right: 0; width: 400px; height: 400px;
 background: radial-gradient(circle, rgba(255,204,0,.04), transparent 70%);
 pointer-events: none;
}
.about-grid {
 display: grid; grid-template-columns: 1fr 1fr;
 gap: 64px; align-items: center;
}
.about-img-wrap {
 position: relative; border-radius: var(--radius); overflow: hidden;
 border: 1px solid var(--line2);
 box-shadow: var(--shadow-lg);
}
.about-img-wrap img {
 width: 100%; aspect-ratio: 4/3; object-fit: cover;
}
.about-img-placeholder {
 aspect-ratio: 4/3;
 background: linear-gradient(135deg, var(--panel), var(--panel2));
 display: flex; align-items: center; justify-content: center;
 flex-direction: column; gap: 12px;
}
.about-img-placeholder svg {
 width: 100px; height: 100px; opacity: .12; color: var(--accent);
}
.about-img-placeholder span {
 font-size: .8rem; color: var(--muted); opacity: .4; font-weight: 600;
}
.about-accent-bar {
 position: absolute; top: -12px; left: -12px;
 width: 80px; height: 80px;
 border-top: 3px solid var(--accent); border-left: 3px solid var(--accent);
 border-radius: 6px 0 0 0;
 box-shadow: -2px -2px 20px rgba(255,204,0,.15);
}
.about-accent-bar2 {
 position: absolute; bottom: -12px; right: -12px;
 width: 80px; height: 80px;
 border-bottom: 3px solid var(--accent); border-right: 3px solid var(--accent);
 border-radius: 0 0 6px 0;
}

.about-text h2 {
 font-size: clamp(1.8rem, 3.5vw, 2.6rem);
 font-weight: 900; margin-bottom: 24px; line-height: 1.15;
}
.about-text h2 .accent {
 background: linear-gradient(135deg, var(--accent), var(--accent2));
 -webkit-background-clip: text; -webkit-text-fill-color: transparent;
 background-clip: text;
}
.about-text p {
 color: var(--text2); margin-bottom: 18px; line-height: 1.85; font-size: .95rem;
}
.about-features {
 display: grid; grid-template-columns: 1fr 1fr;
 gap: 14px; margin-top: 32px;
}
.about-feature {
 display: flex; align-items: center; gap: 14px;
 padding: 14px 18px; border-radius: var(--radius-sm);
 background: rgba(255,204,0,.03); border: 1px solid rgba(255,204,0,.08);
 transition: all var(--t);
}
.about-feature:hover {
 border-color: rgba(255,204,0,.25);
 background: rgba(255,204,0,.06);
 transform: translateX(4px);
}
.about-feature .check {
 width: 28px; height: 28px;
 background: linear-gradient(135deg, var(--accent), #ffd633);
 color: #111; border-radius: 6px;
 display: flex; align-items: center; justify-content: center;
 font-size: .8rem; flex-shrink: 0; font-weight: 800;
}
.about-feature span {
 color: var(--text2); font-size: .9rem; font-weight: 600;
}

/* ===== CERTIFICATIONS (新增) ===== */
.certifications {
 padding: 80px 0; background: var(--bg);
 border-top: 1px solid var(--line);
}
.cert-grid {
 display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; margin-top: 40px;
}
.cert-item {
 padding: 18px 28px; border-radius: var(--radius-sm);
 background: var(--panel); border: 1px solid var(--line);
 display: flex; align-items: center; gap: 14px;
 transition: all var(--t);
 animation: borderGlow 4s ease infinite;
}
.cert-item:hover {
 border-color: var(--accent);
 transform: translateY(-4px);
 box-shadow: var(--shadow-accent);
}
.cert-icon {
 font-size: 1.8rem; color: var(--accent);
}
.cert-label { font-size: .9rem; font-weight: 700; color: var(--text2); }

/* ===== NEWS ===== */
.news { background: var(--bg2); }
.news-grid {
 display: grid; grid-template-columns: repeat(3, 1fr);
 gap: 28px;
}
.news-card {
 background: var(--panel); border-radius: var(--radius);
 overflow: hidden; border: 1px solid var(--line);
 transition: all var(--t);
}
.news-card:hover {
 transform: translateY(-6px);
 border-color: var(--line3);
 box-shadow: 0 12px 36px rgba(0,0,0,.3);
}
.news-thumb {
 height: 200px; background: linear-gradient(135deg, var(--panel2), var(--bg2));
 overflow: hidden; position: relative;
}
.news-thumb img {
 width: 100%; height: 100%; object-fit: cover;
 transition: transform .6s ease;
}
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-thumb-placeholder {
 height: 100%; display: flex; align-items: center; justify-content: center;
 color: var(--muted); font-size: 2.5rem; opacity: .15;
}
.news-date {
 position: absolute; bottom: 12px; left: 12px;
 background: var(--accent); color: #111;
 padding: 5px 12px; font-size: .72rem; font-weight: 800;
 border-radius: 4px; letter-spacing: .04em;
}
.news-body { padding: 24px; }
.news-body h3 {
 font-size: 1.05rem; font-weight: 700; margin-bottom: 10px;
 line-height: 1.45; color: var(--text);
 transition: color var(--t);
}
.news-card:hover .news-body h3 { color: var(--accent); }
.news-body h3 a { color: inherit; }
.news-body p { color: var(--muted); font-size: .85rem; line-height: 1.65; }

/* ===== CONTACT ===== */
.contact { background: var(--bg); position: relative; }
.contact::before {
 content: ''; position: absolute; bottom: 0; left: 0; width: 500px; height: 500px;
 background: radial-gradient(circle, rgba(255,204,0,.03), transparent 60%);
 pointer-events: none;
}
.contact-grid {
 display: grid; grid-template-columns: 1fr 1fr;
 gap: 48px;
}
.contact-info h3 {
 font-size: 1.5rem; font-weight: 800; margin-bottom: 28px;
}
.contact-item {
 display: flex; align-items: flex-start; gap: 18px;
 margin-bottom: 28px;
}
.contact-icon {
 width: 52px; height: 52px;
 background: var(--accent-glow); border: 1px solid var(--line3);
 border-radius: 12px; display: flex; align-items: center; justify-content: center;
 color: var(--accent); font-size: 1.3rem; flex-shrink: 0;
 transition: all var(--t);
}
.contact-item:hover .contact-icon {
 background: var(--accent); color: #111;
 box-shadow: var(--shadow-accent);
}
.contact-item-text h4 { font-size: .95rem; font-weight: 700; margin-bottom: 4px; }
.contact-item-text p, .contact-item-text a {
 color: var(--text2); font-size: .9rem; line-height: 1.5;
}
.contact-item-text a { color: var(--accent); }
.contact-item-text a:hover { text-decoration: underline; }

/* Contact Form */
.contact-form {
 background: var(--panel); padding: 40px; border-radius: var(--radius);
 border: 1px solid var(--line2);
 box-shadow: var(--shadow-lg);
}
.contact-form h3 {
 font-size: 1.3rem; font-weight: 800; margin-bottom: 28px;
}
.form-row { display: flex; gap: 16px; }
.form-group { flex: 1; margin-bottom: 18px; }
.form-group label {
 display: block; font-size: .82rem; color: var(--muted);
 margin-bottom: 8px; font-weight: 600; letter-spacing: .02em;
}
.form-group input,
.form-group textarea,
.form-group select {
 width: 100%; padding: 14px 18px;
 background: var(--bg2); border: 1.5px solid var(--line2);
 border-radius: var(--radius-sm); color: var(--text);
 font-size: .92rem; font-family: inherit; outline: none;
 transition: all var(--t);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
 border-color: var(--accent);
 box-shadow: 0 0 0 4px rgba(255,204,0,.08);
 background: var(--bg3);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
 appearance: none;
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7a8d' stroke-width='2' fill='none'/%3E%3C/svg%3E");
 background-repeat: no-repeat; background-position: right 16px center;
}
.form-group select option { background: var(--panel); color: var(--text); }
.form-submit { margin-top: 8px; }
.form-submit .btn { width: 100%; justify-content: center; }

/* ===== FOOTER ===== */
.site-footer {
 background: rgba(4,5,8,.98);
 border-top: 1px solid var(--line);
}
.footer-grid {
 display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
 gap: 48px; padding: 64px 0 40px;
}
.footer-brand p {
 color: var(--muted); font-size: .88rem; line-height: 1.75;
 margin-top: 16px; max-width: 36ch;
}
.footer-social { display: flex; gap: 10px; margin-top: 24px; }
.footer-social a {
 width: 42px; height: 42px;
 background: var(--panel); border: 1px solid var(--line);
 border-radius: 8px; display: flex; align-items: center; justify-content: center;
 color: var(--muted); font-size: .95rem; font-weight: 700;
 transition: all var(--t);
}
.footer-social a:hover {
 background: var(--accent); color: #111;
 border-color: var(--accent); transform: translateY(-2px);
 box-shadow: var(--shadow-accent);
}
.footer-col h4 {
 font-size: .85rem; font-weight: 800; text-transform: uppercase;
 letter-spacing: .08em; color: var(--text); margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
 color: var(--muted); font-size: .88rem;
 transition: all var(--t); display: inline-block;
}
.footer-col ul a:hover { color: var(--accent); transform: translateX(4px); }
.footer-bottom {
 border-top: 1px solid var(--line); padding: 20px 0;
 display: flex; justify-content: space-between; align-items: center;
 flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { color: var(--muted); font-size: .8rem; }
.footer-bottom a { color: var(--muted); font-size: .8rem; }
.footer-bottom a:hover { color: var(--accent); }

/* ===== WhatsApp Float ===== */
.whatsapp-float {
 position: fixed; bottom: 30px; left: 30px; z-index: 900;
}
.whatsapp-float a {
 display: flex; align-items: center; gap: 10px;
 background: #25d366; color: #fff;
 padding: 14px 22px; border-radius: 999px;
 font-weight: 700; font-size: .88rem;
 box-shadow: 0 4px 20px rgba(37,211,102,.4);
 transition: all var(--t);
}
.whatsapp-float a:hover {
 transform: translateY(-3px) scale(1.02);
 box-shadow: 0 8px 32px rgba(37,211,102,.5);
}

/* ===== Back to Top ===== */
.back-to-top {
 position: fixed; bottom: 30px; right: 30px;
 width: 50px; height: 50px;
 background: linear-gradient(135deg, var(--accent), #ffd633);
 color: #111; border: none; border-radius: 12px;
 cursor: pointer; display: flex; align-items: center; justify-content: center;
 font-size: 1.3rem; font-weight: 900; z-index: 900;
 opacity: 0; visibility: hidden; transform: translateY(20px);
 transition: all var(--t);
 box-shadow: 0 4px 20px rgba(255,204,0,.25);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
 transform: translateY(-4px);
 box-shadow: 0 8px 32px rgba(255,204,0,.4);
}

/* ===== Section Divider ===== */
.section-divider {
 width: 60px; height: 3px;
 background: linear-gradient(90deg, var(--accent), var(--accent2));
 border-radius: 3px; margin: 0 auto 20px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
 .products-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
 .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
 .footer-grid { grid-template-columns: 1fr 1fr; }
 .hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
}
@media (max-width: 768px) {
 .nav-menu, .nav-cta { display: none; }
 .hamburger { display: flex; }
 .hero h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }
 .hero-desc { font-size: .95rem; }
 .section-title { font-size: clamp(1.5rem, 4vw, 2rem); }
 .section-pad { padding: 64px 0; }
 .stats-grid { grid-template-columns: repeat(2, 1fr); }
 .stat-number { font-size: 2.2rem; }
 .products-grid, .news-grid { grid-template-columns: 1fr; }
 .about-features { grid-template-columns: 1fr; }
 .form-row { flex-direction: column; gap: 0; }
 .footer-grid { grid-template-columns: 1fr; }
 .footer-bottom { flex-direction: column; text-align: center; }
 .contact-form { padding: 28px; }
 .cert-grid { gap: 12px; }
 .cert-item { padding: 14px 18px; }
}
@media (max-width: 480px) {
 .hero h1 { font-size: 1.8rem; }
 .hero-btns { flex-direction: column; align-items: center; }
 .btn { min-height: 46px; padding: 0 24px; font-size: .82rem; }
 .stat-number { font-size: 1.8rem; }
 .whatsapp-float a span:last-child { display: none; }
 .whatsapp-float a { padding: 14px; border-radius: 50%; }
}

/* ===== WordPress Overrides ===== */
.site { background: transparent; }
.entry-content { max-width: var(--max); margin: 0 auto; }
.wp-block-library-css { display: none; }

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
 position: fixed; top: 0; left: 0; height: 3px; z-index: 1001;
 background: linear-gradient(90deg, var(--accent), var(--accent2));
 width: 0%; transition: width .1s linear;
 box-shadow: 0 0 10px rgba(255,204,0,.4);
}


/* Logo Image Style */
.nav-logo .logo-img {
    height: 36px;
    width: auto;
    margin-right: 8px;
    border-radius: 4px;
    object-fit: contain;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

/* ===== IMAGE ENHANCEMENTS V5 ===== */

/* Product card image hover zoom */
.product-img {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: linear-gradient(135deg, #0d1117, #1a2236);
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .8s cubic-bezier(.4,0,.2,1), filter .6s ease;
    filter: brightness(0.85) saturate(1.1);
}
.product-card:hover .product-img img {
    transform: scale(1.08);
    filter: brightness(1) saturate(1.2);
}

/* Product image overlay gradient */
.product-img::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(6,8,16,.7) 0%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

/* About section image enhancement */
.about-img-wrap img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    filter: brightness(0.9) saturate(1.1);
    transition: filter .6s ease, transform .6s ease;
}
.about-img-wrap:hover img {
    filter: brightness(1) saturate(1.15);
    transform: scale(1.02);
}

/* News thumbnail images */
.news-thumb {
    height: 200px;
    background: linear-gradient(135deg, var(--panel2), var(--bg2));
    overflow: hidden;
    position: relative;
}
.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease, filter .5s ease;
    filter: brightness(0.8) saturate(1.1);
}
.news-card:hover .news-thumb img {
    transform: scale(1.06);
    filter: brightness(0.9) saturate(1.2);
}
/* News image overlay */
.news-thumb::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(17,24,39,.8) 0%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

/* Hero section background image enhancement */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 76px;
    overflow: hidden;
    background: var(--bg);
}
.hero-bg-image {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.3) saturate(0.8);
    opacity: 0;
    transition: opacity 1.5s ease;
}
.hero-bg-image.loaded {
    opacity: 1;
}

/* Image loading animation */
@keyframes imgFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.product-img img,
.news-thumb img,
.about-img-wrap img {
    animation: imgFadeIn .6s ease both;
}

/* Certification section visual enhancement */
.cert-item {
    padding: 18px 28px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--panel), rgba(255,204,0,.03));
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    gap: 14px;
    transition: all var(--t);
    animation: borderGlow 4s ease infinite;
    position: relative;
    overflow: hidden;
}
.cert-item::before {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,204,0,.06), transparent);
    transition: left .8s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
}
.cert-item:hover::before {
    left: 150%;
}

/* Stats section enhanced */
.stat-item {
    padding: 40px 20px;
    background: linear-gradient(180deg, var(--panel), rgba(255,204,0,.02));
    text-align: center;
    transition: all var(--t);
    position: relative;
}
.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%; transform: translateX(-50%);
    width: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    border-radius: 3px;
    transition: width .4s cubic-bezier(.4,0,.2,1);
}
.stat-item:hover::after {
    width: 60%;
}