/* ========================================
   China Industrial Pump Network
   Industrial Pump Export Website Styles
   ======================================== */

/* === CSS Variables === */
:root {
    --primary: #0f2b46;
    --primary-dark: #0a1f33;
    --primary-light: #1a3a5c;
    --accent: #e8651a;
    --accent-dark: #c8540f;
    --accent-light: #f5823a;
    --bg: #ffffff;
    --bg-alt: #f5f7fa;
    --bg-dark: #0f2b46;
    --bg-card: #ffffff;
    --text: #1a2332;
    --text-secondary: #5a6a7a;
    --text-muted: #8a9aa8;
    --text-light: #ffffff;
    --border: #e2e8f0;
    --border-light: #edf1f5;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 3px rgba(15, 43, 70, 0.08);
    --shadow: 0 4px 12px rgba(15, 43, 70, 0.1);
    --shadow-lg: 0 8px 30px rgba(15, 43, 70, 0.12);
    --transition: all 0.3s ease;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --container: 1200px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text); }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }

/* === Container === */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    line-height: 1.4;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-outline-light:hover { background: #fff; color: var(--primary); border-color: #fff; }
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* === Top Bar === */
.top-bar {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.8);
    font-size: 13px;
    padding: 8px 0;
}
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar-left { display: flex; gap: 24px; align-items: center; }
.top-bar-item { display: flex; align-items: center; gap: 6px; }
.top-bar-item svg { width: 14px; height: 14px; flex-shrink: 0; }
.top-bar-right { font-weight: 500; letter-spacing: 0.5px; display: flex; align-items: center; gap: 16px; }
.top-bar-cta { padding: 5px 16px !important; font-size: 13px !important; }

/* === Header === */
.header {
    background: #fff;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
}
.logo-icon svg { width: 100%; height: 100%; }
.logo-text { display: flex; flex-direction: row; align-items: baseline; gap: 6px; line-height: 1; }
.logo-text strong { font-size: 16px; font-weight: 800; color: var(--accent); letter-spacing: 0.5px; }
.logo-text span { font-size: 16px; font-weight: 600; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; }

/* === Navigation === */
.nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.nav > a, .nav-dropdown > .dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}
.nav > a:hover, .nav-dropdown:hover > .dropdown-toggle { color: var(--accent); background: var(--bg-alt); }
.nav > a.active, .nav-dropdown > .dropdown-toggle.active { color: var(--accent); font-weight: 600; }
.dropdown-arrow { width: 14px; height: 14px; transition: transform 0.3s; }
.nav-dropdown:hover .dropdown-arrow { transform: rotate(180deg); }
.nav-dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a {
    display: block;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--text);
    border-radius: 6px;
    transition: var(--transition);
}
.dropdown-menu a:hover { background: var(--bg-alt); color: var(--accent); padding-left: 18px; }
.dropdown-view-all { border-top: 1px solid var(--border-light); margin-top: 4px; padding-top: 8px !important; font-weight: 600; color: var(--accent) !important; }
.dropdown-divider { height: 1px; background: var(--border-light); margin: 6px 8px; }

.header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.menu-toggle span { width: 24px; height: 2px; background: var(--primary); transition: var(--transition); border-radius: 2px; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === Hero === */
.hero {
    position: relative;
    min-height: 560px;
    display: block;
    padding: 120px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}
.hero-slider { padding: 0; }
.hero-slider-container { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; }
.hero-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s ease; }
.hero-slide.active { opacity: 1; }
.hero-slide-img { width: 100%; height: 100%; object-fit: cover; }
.hero-slide-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(10,31,51,0.92) 0%, rgba(15,43,70,0.8) 50%, rgba(26,58,92,0.7) 100%); }
.hero-slider-content { position: relative; z-index: 10; padding: 80px 24px; width: 100%; }
.hero .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 10; }
.hero-content { max-width: 720px; text-align: left; margin-right: auto; margin-left: 0; }
.hero-content .hero-actions { justify-content: flex-start; }
.hero-content .hero-stats { justify-content: flex-start; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(232,101,26,0.15);
    border: 1px solid rgba(232,101,26,0.4);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}
.hero-badge .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { font-size: 3rem; color: #fff; margin-bottom: 20px; line-height: 1.2; }
.hero h1 .highlight { color: var(--accent-light); }
.hero-subtitle { font-size: 17px; color: rgba(255,255,255,0.8); margin-bottom: 32px; line-height: 1.8; max-width: 600px; }
.hero-actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; position: relative; z-index: 100; }
.hero-actions .btn { position: relative; z-index: 100; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stat { text-align: left; }
.hero-stat .num { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1; }
.hero-stat .num small { font-size: 1.2rem; color: var(--accent-light); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }
.hero-slider-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.hero-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.3); cursor: pointer; transition: var(--transition); }
.hero-dot.active { background: var(--accent); width: 32px; border-radius: 6px; }

/* === Sections === */
.section { padding: 60px 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.section-title { font-size: 2.2rem; margin-bottom: 16px; color: var(--primary); }
.section-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.8; }
.section-center { text-align: center; margin-top: 48px; }

/* === About Brief === */
.about-brief-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about-brief-text .section-label { margin-bottom: 12px; }
.about-brief-text .section-title { text-align: left; margin-bottom: 20px; }
.about-brief-text p { color: var(--text-secondary); margin-bottom: 16px; }
.about-brief-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 28px 0; }
.feature-item { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--text); }
.feature-item svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }
.image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--bg-alt) 0%, var(--border-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    border: 2px dashed var(--border);
}
.image-placeholder svg { width: 64px; height: 64px; opacity: 0.4; }
.image-placeholder span { font-size: 14px; font-weight: 500; }

/* === Product Category Grid === */
.product-cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-cat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.product-cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.product-cat-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    margin-bottom: 20px;
}
.product-cat-icon svg { width: 28px; height: 28px; }
.product-cat-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--primary); }
.product-cat-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; flex-grow: 1; }
.product-cat-models { margin-bottom: 16px; }
.product-cat-models li { margin-bottom: 6px; }
.product-cat-models a { font-size: 13px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.product-cat-models a::before { content: '›'; color: var(--accent); font-weight: bold; }
.product-cat-models a:hover { color: var(--accent); padding-left: 4px; }
.product-cat-more { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; }
.product-cat-more:hover { gap: 6px; }

/* === Product Grid (list page) === */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-thumb { position: relative; aspect-ratio: 1/1; background: var(--bg-alt); overflow: hidden; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.product-card:hover .product-thumb img { transform: scale(1.05); }
.cat-tag {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    z-index: 2;
}
.struct-tag {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    z-index: 2;
    letter-spacing: 0.5px;
}
.product-card-specs {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}
.product-card-specs .spec-item {
    background: var(--bg-alt);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}
.product-thumb-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    background: linear-gradient(135deg, var(--bg-alt), var(--border-light));
}
.product-thumb-placeholder svg { width: 64px; height: 64px; opacity: 0.3; }
.product-thumb-placeholder.large { flex-direction: column; gap: 12px; }
.product-thumb-placeholder.large span { font-size: 14px; }
.product-body { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 18px; margin-bottom: 8px; color: var(--primary); }
.product-subtitle { font-size: 14px; color: var(--accent); font-weight: 500; margin-bottom: 8px; }
.product-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; flex-grow: 1; }
.product-more { font-size: 14px; font-weight: 600; color: var(--accent); }
.product-card-actions { display: flex; gap: 10px; margin-top: auto; padding-top: 16px; }
.product-card-actions .btn { flex: 1; text-align: center; padding: 8px 12px; font-size: 13px; }

/* === Product Filter === */
.product-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; justify-content: center; }
.filter-mobile-toggle-btn { display: none; }
.product-filter a {
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-alt);
    border-radius: 50px;
    border: 1px solid transparent;
    transition: var(--transition);
}
.product-filter a:hover { color: var(--accent); border-color: var(--accent); }
.product-filter a.active { background: var(--primary); color: #fff; }

/* === Applications Grid === */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.app-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
}
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.app-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(15,43,70,0.08), rgba(232,101,26,0.08));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
    transition: var(--transition);
}
.app-card:hover .app-icon { background: var(--primary); color: #fff; }
.app-icon svg { width: 30px; height: 30px; }
.app-card h3 { font-size: 17px; margin-bottom: 10px; color: var(--primary); }
.app-card p { font-size: 14px; color: var(--text-secondary); margin: 0; }

/* === App Detail Grid (applications page) === */
.app-detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; margin-bottom: 60px; }
.app-detail-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.app-detail-card:hover { box-shadow: var(--shadow); }
.app-detail-icon {
    width: 56px; height: 56px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}
.app-detail-icon svg { width: 28px; height: 28px; }
.app-detail-card h3 { font-size: 20px; color: var(--primary); margin-bottom: 12px; }
.app-detail-card > p { color: var(--text-secondary); margin-bottom: 16px; }
.app-detail-list { margin-bottom: 20px; }
.app-detail-list li { padding: 6px 0; font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.app-detail-list li::before { content: '✓'; color: var(--accent); font-weight: bold; flex-shrink: 0; }
.app-detail-link { font-size: 14px; font-weight: 600; color: var(--accent); }

.custom-solution-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-xl);
    padding: 48px;
    text-align: center;
    color: #fff;
}
.custom-solution-cta h2 { color: #fff; margin-bottom: 12px; }
.custom-solution-cta p { color: rgba(255,255,255,0.8); margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* === Advantages Grid === */
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.advantage-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.advantage-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.advantage-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--border);
    margin-bottom: 12px;
    line-height: 1;
}
.advantage-item h4 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.advantage-item p { font-size: 14px; color: var(--text-secondary); margin: 0; }

/* === Quality Section === */
.quality-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.quality-text .section-label { margin-bottom: 12px; }
.quality-text .section-title { text-align: left; margin-bottom: 20px; }
.quality-text p { color: var(--text-secondary); margin-bottom: 16px; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.cert-badge {
    padding: 10px 20px;
    background: var(--bg-alt);
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    font-weight: 700;
    color: var(--primary);
    font-size: 15px;
}
.quality-process h3 { font-size: 20px; color: var(--primary); margin-bottom: 24px; }
.process-steps { display: flex; flex-direction: column; gap: 20px; }
.process-step { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
    width: 40px; height: 40px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}
.step-content h4 { font-size: 16px; color: var(--primary); margin-bottom: 4px; }
.step-content p { font-size: 14px; color: var(--text-secondary); margin: 0; }

/* === Quality Page === */
.quality-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
.quality-hero-text .section-label { margin-bottom: 12px; }
.quality-hero-text .section-title { text-align: left; margin-bottom: 20px; }
.quality-hero-text p { color: var(--text-secondary); margin-bottom: 16px; }
.quality-hero-certs { display: flex; flex-direction: column; gap: 16px; }
.cert-large {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}
.cert-large-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800;
    font-size: 14px;
    flex-shrink: 0;
}
.cert-large-text strong { display: block; font-size: 17px; color: var(--primary); }
.cert-large-text span { font-size: 14px; color: var(--text-secondary); }

.quality-process-full { margin-bottom: 80px; }
.process-timeline { display: flex; flex-direction: column; gap: 0; position: relative; }
.process-timeline::before {
    content: '';
    position: absolute;
    left: 27px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}
.process-timeline-item { display: flex; gap: 32px; padding: 24px 0; position: relative; }
.process-timeline-num {
    width: 56px; height: 56px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800;
    font-size: 16px;
    flex-shrink: 0;
    z-index: 1;
    border: 4px solid var(--bg);
}
.process-timeline-content { flex: 1; }
.process-timeline-content h3 { font-size: 20px; color: var(--primary); margin-bottom: 10px; }
.process-timeline-content > p { color: var(--text-secondary); margin-bottom: 12px; }
.process-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.process-list li { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.process-list li::before { content: '•'; color: var(--accent); font-weight: bold; }

.testing-facilities { margin-bottom: 80px; }
.facilities-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.facility-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--border-light);
    text-align: center;
    transition: var(--transition);
}
.facility-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.facility-icon {
    width: 56px; height: 56px;
    margin: 0 auto 16px;
    background: rgba(232,101,26,0.1);
    color: var(--accent);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
}
.facility-icon svg { width: 28px; height: 28px; }
.facility-card h4 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.facility-card p { font-size: 14px; color: var(--text-secondary); margin: 0; }

.quality-cta {
    text-align: center;
    background: var(--bg-alt);
    border-radius: var(--radius-xl);
    padding: 48px;
}
.quality-cta h2 { color: var(--primary); margin-bottom: 12px; }
.quality-cta p { color: var(--text-secondary); margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* === News Grid === */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.news-thumb { aspect-ratio: 16/9; overflow: hidden; background: var(--bg-alt); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-body { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-muted); margin-bottom: 12px; flex-wrap: wrap; }
.news-meta .cat { color: var(--accent); font-weight: 600; }
.news-body h3 { font-size: 17px; color: var(--primary); margin-bottom: 10px; line-height: 1.4; }
.news-body p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; flex-grow: 1; }
.news-more { font-size: 14px; font-weight: 600; color: var(--accent); }

/* === Page Banner === */
.page-banner {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #fff;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-banner .container { position: relative; z-index: 1; }
.breadcrumb { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span { color: rgba(255,255,255,0.6); }
.page-banner h1 { color: #fff; margin-bottom: 8px; }
.page-banner p { color: rgba(255,255,255,0.7); margin: 0; }

/* === Detail Layout === */
.detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.detail-content { min-width: 0; }
.detail-body { margin-bottom: 40px; }
.detail-body h2, .detail-body h3, .detail-body h4 { color: var(--primary); margin: 24px 0 12px; }
.detail-body p { color: var(--text-secondary); margin-bottom: 16px; }
.detail-body ul, .detail-body ol { margin-bottom: 16px; padding-left: 24px; }
.detail-body ul { list-style: disc; }
.detail-body ol { list-style: decimal; }
.detail-body li { margin-bottom: 8px; color: var(--text-secondary); }
.detail-body img { border-radius: var(--radius); margin: 16px 0; }
.detail-body p a, .detail-body li a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 500;
}
.detail-body p a:hover, .detail-body li a:hover {
    color: var(--accent-dark);
    text-decoration: none;
}
.detail-section-title { font-size: 22px; color: var(--primary); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); display: inline-block; }

/* Product Detail Header */
.product-detail-header { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.product-detail-image { border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-alt); aspect-ratio: 1; }
.product-detail-image img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-info .cat-tag { position: static; display: inline-block; margin-bottom: 16px; }
.product-detail-info h1 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.product-subtitle-large { font-size: 16px; color: var(--accent); font-weight: 500; margin-bottom: 16px; }
.product-summary { color: var(--text-secondary); margin-bottom: 24px; }
.product-meta-row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; padding: 16px; background: var(--bg-alt); border-radius: var(--radius); }
.product-meta-item { display: flex; font-size: 14px; }
.meta-label { font-weight: 600; color: var(--text); min-width: 100px; }
.meta-value { color: var(--text-secondary); }
.product-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Features */
.features-section { margin-bottom: 40px; }
.features-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.feature-item-check { display: flex; align-items: flex-start; gap: 10px; padding: 12px; background: var(--bg-alt); border-radius: var(--radius); }
.feature-item-check svg { width: 20px; height: 20px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.feature-item-check span { font-size: 14px; color: var(--text-secondary); }

/* Why Choose Our Pump */
.why-choose-section { margin-bottom: 40px; }
.why-choose-content { background: var(--bg-alt); border-radius: var(--radius-lg); padding: 28px; border-left: 4px solid var(--accent); }
.why-choose-content h3 { font-size: 16px; color: var(--primary); margin: 0 0 8px 0; font-weight: 600; }
.why-choose-content h3:not(:first-child) { margin-top: 20px; }
.why-choose-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0 0 12px 0; }
.why-choose-content ul { margin: 0 0 12px 0; padding-left: 20px; }
.why-choose-content li { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 6px; }
.why-choose-content strong { color: var(--text); }

/* FAQ */
.faq-section { margin-bottom: 40px; }
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--bg-alt); border-radius: var(--radius); padding: 20px 24px; border-left: 3px solid var(--accent); }
.faq-question { font-size: 16px; font-weight: 600; color: var(--primary); margin: 0 0 8px 0; }
.faq-answer { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0; }

/* Specs */
.specs-section { margin-bottom: 40px; }
.specs-note { color: var(--text-secondary); margin-bottom: 20px; }
.spec-table-wrap { overflow-x: auto; margin-bottom: 20px; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
.spec-table th { background: #f0f4f8; color: var(--text); font-weight: 600; }
.spec-table tr:nth-child(even) { background: var(--bg-alt); }

.inquiry-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    color: #fff;
}
.inquiry-cta h3 { color: #fff; margin-bottom: 8px; }
.inquiry-cta p { color: rgba(255,255,255,0.8); margin-bottom: 20px; }

/* Sidebar */
.detail-sidebar { position: sticky; top: 90px; }
.widget {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}
.widget h4 { font-size: 16px; color: var(--primary); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); }
.contact-widget { text-align: center; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border: none; }
.contact-widget h4 { color: #fff; border-color: rgba(255,255,255,0.2); }
.contact-widget p { color: rgba(255,255,255,0.8); font-size: 14px; }
.widget-phone { font-size: 22px; font-weight: 800; color: var(--accent-light); margin: 12px 0; }
.widget-email { font-size: 14px; color: rgba(255,255,255,0.8); word-break: break-all; }
.widget-contact-item { display: flex; align-items: center; justify-content: center; gap: 10px; margin: 10px 0; }
.sidebar-products li { margin-bottom: 12px; }
.sidebar-products a { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text); }
.sidebar-products a:hover { color: var(--accent); }
.sidebar-products img { width: 48px; height: 48px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.sidebar-news li { margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }
.sidebar-news li:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.sidebar-news a { font-size: 14px; color: var(--text); display: block; margin-bottom: 4px; line-height: 1.4; }
.sidebar-news a:hover { color: var(--accent); }
.sidebar-news .date { font-size: 12px; color: var(--text-muted); }
.sidebar-cats li { margin-bottom: 8px; }
.sidebar-cats a { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.sidebar-cats a::before { content: '›'; color: var(--accent); font-weight: bold; }
.sidebar-cats a:hover { color: var(--accent); padding-left: 4px; }

/* === Engineering Tools === */
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tool-card { display: block; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 32px; text-decoration: none; transition: all 0.3s; box-shadow: var(--shadow-sm); }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.tool-icon { font-size: 40px; margin-bottom: 16px; }
.tool-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.tool-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
.tool-link { color: var(--accent); font-weight: 600; font-size: 14px; }
.tool-layout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; }
.tool-main { min-width: 0; }
.tool-panel { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 32px; margin-bottom: 24px; }
.tool-panel h3 { color: var(--primary); margin-bottom: 20px; font-size: 18px; }
.tool-panel .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.tool-panel .form-group { display: flex; flex-direction: column; }
.tool-panel .form-group label { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; letter-spacing: 0.2px; }
.tool-panel .form-group input,
.tool-panel .form-group select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text);
    background: var(--bg-alt);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    box-sizing: border-box;
}
.tool-panel .form-group input:focus,
.tool-panel .form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(232,101,26,0.12);
    background: #fff;
}
.tool-panel .form-group small { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.tool-panel select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px !important; cursor: pointer; }
.tool-info { background: var(--bg-alt); border-radius: var(--radius-lg); padding: 24px; }
.tool-info h3 { color: var(--primary); margin-bottom: 12px; font-size: 16px; }
.tool-info p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 8px; }
.tool-result { background: var(--bg-alt); border-radius: var(--radius); padding: 20px; }
.tool-result h4 { color: var(--primary); margin-bottom: 12px; }
.result-table { width: 100%; border-collapse: collapse; margin-bottom: 12px; }
.result-table td { padding: 8px 12px; border-bottom: 1px solid var(--border-light); font-size: 14px; }
.result-table td:last-child { text-align: right; }
.result-status { padding: 12px 16px; border-radius: var(--radius); font-size: 14px; font-weight: 600; margin-top: 12px; }
.status-ok { background: #e8f5e9; color: #2e7d32; }
.status-warn { background: #fff3e0; color: #e65100; }
.conv-results { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 12px; }
.conv-item { display: flex; justify-content: space-between; padding: 8px 12px; background: var(--bg-alt); border-radius: var(--radius); font-size: 14px; }
.conv-item span { color: var(--text-secondary); }
.conv-item strong { color: var(--primary); }
.sidebar-tools li { margin-bottom: 10px; }
.sidebar-tools a { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.sidebar-tools a:hover { color: var(--accent); }
.rate-badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.rate-good { background: #e8f5e9; color: #2e7d32; }
.rate-fair { background: #fff3e0; color: #e65100; }
.rate-poor { background: #ffebee; color: #c62828; }
.tool-callout { background: #f0f7ff; border-left: 4px solid var(--accent); padding: 14px 18px; margin: 12px 0; border-radius: 0 6px 6px 0; font-size: 15px; }
.tool-callout a { color: var(--accent); font-weight: 600; text-decoration: none; }
.tool-callout a:hover { text-decoration: underline; }
.related-articles-section { margin: 40px 0 0; padding-top: 32px; border-top: 1px solid var(--border-light); }
.related-articles-section h3 { font-size: 22px; margin-bottom: 20px; color: var(--primary); }
.related-articles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related-article-card { display: block; padding: 16px 20px; background: var(--bg-light); border-radius: var(--radius); border: 1px solid var(--border-light); transition: all 0.2s; text-decoration: none; }
.related-article-card:hover { border-color: var(--accent); box-shadow: 0 4px 12px rgba(0,0,0,0.08); transform: translateY(-2px); }
.related-article-card h4 { font-size: 15px; line-height: 1.4; margin: 0 0 8px; color: var(--text); }
.related-article-card:hover h4 { color: var(--accent); }
.ra-date { font-size: 12px; color: var(--text-muted); }
.cat-browse-links { margin: 16px 0; padding: 12px 16px; background: var(--bg-light); border-radius: var(--radius); font-size: 14px; }
.cat-browse-links a { color: var(--accent); font-weight: 600; text-decoration: none; }
.cat-browse-links a:hover { text-decoration: underline; }
@media (max-width: 600px) { .related-articles-grid { grid-template-columns: 1fr; } }

@media (max-width: 900px) {
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .tool-layout { grid-template-columns: 1fr; }
    .tool-panel .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
    .tools-grid { grid-template-columns: 1fr; }
}

/* === Article === */
.article-cover { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 32px; aspect-ratio: 16/9; }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-summary {
    padding: 20px 24px;
    background: var(--bg-alt);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 32px;
    font-size: 16px;
    color: var(--text-secondary);
    font-style: italic;
}
.article-body { font-size: 16px; line-height: 1.9; }
.article-meta-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin: 32px 0;
    flex-wrap: wrap;
    gap: 16px;
}
.article-cats, .article-share { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.article-cats span, .article-share span { color: var(--text-muted); font-weight: 600; }
.article-share a { color: var(--text-secondary); }
.article-share a:hover { color: var(--accent); }
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.article-nav-item {
    padding: 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.article-nav-item:hover { border-color: var(--accent); background: #fff; }
.article-nav-item.next { text-align: right; }
.article-nav-item .nav-label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.article-nav-item .nav-title { font-size: 15px; font-weight: 600; color: var(--primary); }

/* === About Page === */
.about-intro { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; margin-bottom: 60px; }
.about-intro-text .section-label { margin-bottom: 12px; }
.about-intro-text .section-title { text-align: left; margin-bottom: 20px; }
.about-intro-text p { color: var(--text-secondary); margin-bottom: 16px; }
.about-stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-xl);
    margin-bottom: 80px;
}
.about-stat { text-align: center; color: #fff; }
.about-stat .stat-num { font-size: 2.2rem; font-weight: 800; color: var(--accent-light); line-height: 1; }
.about-stat .stat-label { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 8px; text-transform: uppercase; letter-spacing: 1px; }
.about-mvv { margin-bottom: 80px; }
.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mvv-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.mvv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.mvv-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.mvv-icon svg { width: 30px; height: 30px; }
.mvv-card h3 { font-size: 20px; color: var(--primary); margin-bottom: 12px; }
.mvv-card p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.8; }
.about-manufacturing { margin-bottom: 80px; }
.manufacturing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mfg-card {
    padding: 28px;
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}
.mfg-card:hover { background: var(--bg-card); box-shadow: var(--shadow); }
.mfg-card h4 { font-size: 17px; color: var(--primary); margin-bottom: 8px; }
.mfg-card p { font-size: 14px; color: var(--text-secondary); margin: 0; }
.about-cta { text-align: center; padding: 48px; background: var(--bg-alt); border-radius: var(--radius-xl); }
.about-cta h2 { color: var(--primary); margin-bottom: 12px; }
.about-cta p { color: var(--text-secondary); margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }
.about-cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === Contact Page === */
.contact-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; align-items: start; }
.contact-info-card, .contact-form-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}
.contact-info-card h3, .contact-form-card h3 { font-size: 22px; color: var(--primary); margin-bottom: 12px; }
.contact-intro, .form-intro { color: var(--text-secondary); font-size: 14px; margin-bottom: 28px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-info-icon {
    width: 44px; height: 44px;
    background: rgba(232,101,26,0.1);
    color: var(--accent);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contact-info-icon svg { width: 20px; height: 20px; }
.contact-info-item h4 { font-size: 15px; color: var(--primary); margin-bottom: 4px; }
.contact-info-item p { font-size: 14px; color: var(--text-secondary); margin: 0; }
.contact-social { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.contact-social h4 { font-size: 15px; color: var(--primary); margin-bottom: 12px; }
.contact-social-icons { display: flex; gap: 12px; }
.contact-social-icons a {
    width: 40px; height: 40px;
    background: var(--bg-alt);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}
.contact-social-icons a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.contact-social-icons svg { width: 18px; height: 18px; }

/* Form */
.admin-form .form-group { margin-bottom: 18px; }
.admin-form .form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.admin-form .form-group input, .admin-form .form-group textarea, .admin-form .form-group select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
    transition: var(--transition);
}
.admin-form .form-group input:focus, .admin-form .form-group textarea:focus, .admin-form .form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(232,101,26,0.1);
    background: #fff;
}
.admin-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-checkbox label { display: flex !important; align-items: flex-start; gap: 8px; font-weight: 400 !important; cursor: pointer; }
.form-checkbox input { width: auto !important; margin-top: 3px; }
.form-checkbox span { font-size: 13px; color: var(--text-secondary); }
.form-submit { width: 100%; }
.form-message { padding: 14px 18px; border-radius: var(--radius); font-size: 14px; margin-top: 16px; }
.form-message.success { background: #f0f9eb; color: #67c23a; border: 1px solid #e1f3d8; }
.form-message.error { background: #fef0f0; color: #f56c6c; border: 1px solid #fde2e2; }

.contact-map-section { padding: 0 0 80px; }
.contact-map-placeholder {
    background: var(--bg-alt);
    border-radius: var(--radius-xl);
    padding: 60px;
    text-align: center;
    border: 2px dashed var(--border);
}
.contact-map-placeholder svg { width: 48px; height: 48px; color: var(--text-muted); margin-bottom: 16px; }
.contact-map-placeholder h3 { color: var(--primary); margin-bottom: 8px; }
.contact-map-placeholder p { color: var(--text-secondary); margin-bottom: 4px; }
.map-note { font-size: 13px; color: var(--text-muted) !important; margin-top: 12px !important; }

/* === CTA Section === */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: 60px 0;
    color: #fff;
}
.cta-content { display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { color: #fff; font-size: 1.8rem; margin-bottom: 12px; }
.cta-text p { color: rgba(255,255,255,0.85); margin: 0; max-width: 500px; font-size: 16px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* === Footer === */
.footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text strong { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.footer-grid-5 { grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 32px; }
.footer-contact-inline { margin-top: 8px; }
.footer-contact-inline .contact-item { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.6; }
.footer-contact-inline .contact-item svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.footer-social svg { width: 16px; height: 16px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 2px; background: var(--accent); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-size: 14px; transition: var(--transition); }
.footer-col ul a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-contact-list li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 14px; font-size: 14px; }
.footer-contact-list svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.5); margin: 0; }

/* === Mobile CTA === */
.mobile-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: var(--primary); padding: 12px 16px; z-index: 999; box-shadow: 0 -4px 12px rgba(0,0,0,0.15); }
.mobile-cta-btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 12px; background: var(--accent); color: #fff; border-radius: var(--radius); font-weight: 600; font-size: 16px; }
.mobile-cta-btn:link, .mobile-cta-btn:visited, .mobile-cta-btn:hover, .mobile-cta-btn:active { color: #fff; text-decoration: none; }
.mobile-cta-btn svg { width: 20px; height: 20px; flex-shrink: 0; }
#contactForm { scroll-margin-top: 100px; }

/* === Pagination === */
.pagination-wrap { text-align: center; margin-top: 48px; }
.pagination { display: inline-flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.pagination a, .pagination span {
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    background: var(--bg-card);
    transition: var(--transition);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .ellipsis { border: none; background: transparent; padding: 10px 8px; }

/* === Empty State === */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-icon { width: 80px; height: 80px; margin: 0 auto 20px; color: var(--text-muted); opacity: 0.5; }
.empty-icon svg { width: 100%; height: 100%; }
.empty-state h3 { font-size: 22px; color: var(--primary); margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); margin-bottom: 24px; }

/* === Category Overview & Selection Guide === */
.category-overview { margin-bottom: 32px; }
.category-overview .section-label { margin-bottom: 12px; }
.category-overview .section-title { margin-bottom: 20px; }
.overview-content { font-size: 16px; line-height: 1.8; color: var(--text-secondary); margin-bottom: 32px; max-width: 900px; }
.overview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.overview-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 24px; }
.overview-item h4 { font-size: 16px; color: var(--primary); margin-bottom: 12px; font-weight: 700; }
.overview-item ul { list-style: none; padding: 0; margin: 0; }
.overview-item li { padding: 6px 0; font-size: 14px; color: var(--text-secondary); border-bottom: 1px solid var(--border-light); }
.overview-item li:last-child { border-bottom: none; }
.overview-item li::before { content: "▸"; color: var(--accent); margin-right: 8px; font-size: 12px; }

.selection-guide { margin-bottom: 16px; }
.selection-guide .section-label { margin-bottom: 12px; }
.selection-guide .section-title { margin-bottom: 24px; }
.selection-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.selection-factor { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 24px; border-left: 4px solid var(--accent); }
.selection-factor h4 { font-size: 16px; color: var(--primary); margin-bottom: 8px; font-weight: 700; }
.selection-factor p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0; }

@media (max-width: 768px) {
    .overview-grid { grid-template-columns: 1fr; }
    .selection-grid { grid-template-columns: 1fr; }
}

/* === Pump Selection Center === */
.selection-tool { max-width: 1100px; margin: 0 auto; }
.selection-form { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 32px; margin-bottom: 32px; }
.selection-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.selection-form .form-group { display: flex; flex-direction: column; }
.selection-form label { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.selection-form select { padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; background: var(--bg-card); color: var(--text-primary); transition: var(--transition); }
.selection-form select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,101,26,0.1); }
.selection-results { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 32px; }
.selection-results .btn-sm { padding: 8px 16px; font-size: 13px; }

@media (max-width: 768px) {
    .selection-form .form-row { grid-template-columns: 1fr; }
    .selection-form, .selection-results { padding: 20px; }
}

/* === Selection Banner & Quick Links === */
.selection-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    margin: 24px 0 16px;
    flex-wrap: wrap;
}
.selection-banner-text h3 { font-size: 20px; margin-bottom: 6px; color: #fff; }
.selection-banner-text p { font-size: 14px; opacity: 0.9; margin: 0; max-width: 500px; }
.selection-banner-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.selection-banner .btn-primary { background: var(--accent); border-color: var(--accent); }
.selection-banner .btn-outline { border-color: rgba(255,255,255,0.5); color: #fff; }
.selection-banner .btn-outline:hover { background: rgba(255,255,255,0.1); }

.quick-knowledge-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding: 12px 0;
}
.quick-knowledge-links a {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    padding: 14px 28px;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    border-radius: 8px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.quick-knowledge-links a:hover {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

@media (max-width: 768px) {
    .selection-banner { padding: 20px; flex-direction: column; align-items: flex-start; }
    .selection-banner-actions { width: 100%; }
    .selection-banner-actions .btn { flex: 1; text-align: center; }
}

/* === Category Knowledge Tags === */
.cat-knowledge {
    margin: 12px 0;
    padding: 10px 12px;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
}
.cat-knowledge-item {
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
}
.cat-knowledge-item .ck-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-right: 4px;
}

/* === Selection Advice Section === */
.selection-advice-section {
    margin: 32px 0;
    padding: 28px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}
.advice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}
.advice-card {
    padding: 20px;
    border-radius: var(--radius);
    background: var(--bg-light);
}
.advice-card h4 {
    font-size: 15px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid;
}
.advice-choose h4 { border-color: #27ae60; color: #27ae60; }
.advice-not h4 { border-color: #e74c3c; color: #e74c3c; }
.advice-mistakes h4 { border-color: #f39c12; color: #f39c12; }
.advice-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.advice-card ul li {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    padding: 6px 0 6px 18px;
    position: relative;
    border-bottom: 1px dashed var(--border-light);
}
.advice-card ul li:last-child { border-bottom: none; }
.advice-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}
.advice-cta {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}
.advice-cta a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}
.advice-cta a:hover { text-decoration: underline; }

@media (max-width: 768px) {
    .advice-grid { grid-template-columns: 1fr; }
    .selection-advice-section { padding: 20px; }
}

/* === Legal / Privacy Policy Page === */
.legal-content {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    align-items: start;
}
.legal-toc {
    position: sticky;
    top: 100px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 20px;
}
.legal-toc h4 {
    font-size: 15px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
}
.legal-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.legal-toc ul li {
    margin-bottom: 6px;
}
.legal-toc ul li a {
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    line-height: 1.5;
    transition: var(--transition);
}
.legal-toc ul li a:hover {
    color: var(--accent);
}
.legal-body h2 {
    font-size: 22px;
    margin: 32px 0 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    color: var(--primary);
}
.legal-body h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}
.legal-body h3 {
    font-size: 17px;
    margin: 20px 0 10px;
    color: var(--text-primary);
}
.legal-body p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.legal-body ul {
    margin: 0 0 16px 20px;
}
.legal-body ul li {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.legal-body ul li strong {
    color: var(--text-primary);
}
.contact-info-box {
    background: var(--bg-light);
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 16px 0;
}
.contact-info-box p {
    margin-bottom: 6px;
}
.contact-info-box a {
    color: var(--accent);
    text-decoration: none;
}

@media (max-width: 900px) {
    .legal-content { grid-template-columns: 1fr; }
    .legal-toc { position: static; }
}

/* === Responsive === */
@media (max-width: 1024px) {
    .product-cat-grid { grid-template-columns: repeat(3, 1fr); }
    .app-grid { grid-template-columns: repeat(3, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid-5 { grid-template-columns: 1fr 1fr; }
    .about-stats { grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .facilities-grid { grid-template-columns: repeat(2, 1fr); }
    .manufacturing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    .section { padding: 56px 0; }
    .section-title { font-size: 1.7rem; }
    .top-bar { display: none; }
    .header-inner { height: 64px; }
    .nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        justify-content: flex-start;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
        align-items: stretch;
        gap: 0;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav > a, .nav-dropdown > .dropdown-toggle { padding: 14px 16px; border-bottom: 1px solid var(--border-light); border-radius: 0; }
    .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; padding: 0 0 0 20px; display: none; }
    .nav-dropdown.open .dropdown-menu { display: block; }
    .menu-toggle { display: flex; }
    /* Product filter: horizontal scroll on mobile */
    .product-filter { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; justify-content: flex-start; margin-bottom: 20px; padding-bottom: 4px; }
    .product-filter::-webkit-scrollbar { display: none; }
    .product-filter a { flex-shrink: 0; }
    /* Filter panel mobile toggle */
    .filter-mobile-toggle-btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 12px; margin-bottom: 16px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; }
    .filter-panel-top { display: none; margin-bottom: 20px; }
    .filter-panel-top.open { display: block; }
    .header-cta .btn { display: none; }
    .hero { min-height: 480px; padding: 60px 0; }
    .hero h1 { font-size: 2rem; }
    .hero-subtitle { font-size: 15px; }
    .hero-slider-content { padding: 60px 0; }
    .hero-stats { gap: 24px; }
    .hero-stat .num { font-size: 1.5rem; }
    .about-brief-grid, .quality-grid, .quality-hero, .about-intro { grid-template-columns: 1fr; gap: 32px; }
    .product-cat-grid, .app-grid, .advantages-grid, .news-grid, .product-grid { grid-template-columns: 1fr; }
    .app-detail-grid, .mvv-grid { grid-template-columns: 1fr; }
    .detail-layout { grid-template-columns: 1fr; }
    .detail-sidebar { position: static; }
    .product-detail-header { grid-template-columns: 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
    .admin-form .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-grid-5 { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .cta-content { flex-direction: column; text-align: center; }
    .about-stats { grid-template-columns: repeat(2, 1fr); padding: 28px; }
    .facilities-grid, .manufacturing-grid { grid-template-columns: 1fr; }
    .process-list { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .article-nav { grid-template-columns: 1fr; }
    .mobile-cta { display: block; }
    body { padding-bottom: 70px; }
    .pagination a, .pagination span { padding: 8px 12px; font-size: 13px; }
    .pagination-wrap { width: 100%; }
    .pagination { width: 100%; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .about-brief-features { grid-template-columns: 1fr; }
    .pagination a, .pagination span { padding: 6px 10px; font-size: 12px; min-width: 32px; text-align: center; }
    .pagination .ellipsis { padding: 6px 4px; min-width: auto; }
}

/* === Applications / Industries === */
.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.app-card { background: #fff; border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--border-light); transition: var(--transition); text-decoration: none; color: inherit; display: flex; flex-direction: column; }
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.app-card-icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; font-size: 28px; }
.app-icon-emoji { font-size: 28px; }
.app-card-title { font-size: 1.25rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.app-card-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: 20px; }
.app-card-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid var(--border-light); }
.app-product-count { font-size: 13px; color: var(--accent); font-weight: 600; }
.app-card-link { font-size: 14px; color: var(--primary); font-weight: 600; }
.app-card:hover .app-card-link { color: var(--accent); }

/* Application Detail */
.application-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.application-main { min-width: 0; }
.application-content { line-height: 1.9; color: var(--text); }
.application-content h2 { font-size: 1.6rem; color: var(--primary); margin: 32px 0 16px; padding-bottom: 12px; border-bottom: 2px solid var(--border-light); }
.application-content h3 { font-size: 1.3rem; color: var(--primary); margin: 24px 0 12px; }
.application-content p { margin-bottom: 16px; }
.application-content ul, .application-content ol { margin-bottom: 16px; padding-left: 24px; }
.application-content ul { list-style: disc; }
.application-content ol { list-style: decimal; }
.application-content li { margin-bottom: 8px; }
.application-content img { max-width: 100%; border-radius: 8px; margin: 16px 0; }
.application-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.application-content th, .application-content td { padding: 12px; border: 1px solid var(--border-light); text-align: left; }
.application-content th { background: var(--bg-alt); font-weight: 600; }

.application-sidebar { position: sticky; top: 100px; }
.sidebar-widget { background: #fff; border-radius: var(--radius); padding: 24px; margin-bottom: 20px; border: 1px solid var(--border-light); }
.sidebar-widget h3 { font-size: 1.1rem; color: var(--primary); margin-bottom: 12px; }
.sidebar-widget p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.7; }

/* Sidebar apps list */
.sidebar-apps { list-style: none; padding: 0; margin: 0; }
.sidebar-apps li { margin-bottom: 8px; }
.sidebar-apps a { display: flex; align-items: center; gap: 8px; padding: 10px 12px; background: var(--bg-alt); border-radius: 8px; text-decoration: none; color: var(--text); font-size: 14px; transition: var(--transition); }
.sidebar-apps a:hover { background: var(--primary); color: #fff; }
.sidebar-apps .app-icon { 
    width: 36px; height: 36px; 
    margin: 0; 
    background: rgba(232,101,26,0.1); 
    border-radius: 50%; 
    display: flex; align-items: center; justify-content: center; 
    font-size: 18px; 
    flex-shrink: 0;
}
.sidebar-apps a span:last-child { flex: 1; text-align: left; }

/* CTA Section - merged with main CTA Section above */

@media (max-width: 900px) {
    .application-layout { grid-template-columns: 1fr; }
    .application-sidebar { position: static; }
}

/* === Factory / Manufacturing Page === */
.factory-intro { max-width: 800px; }
.factory-intro-content { line-height: 1.9; color: var(--text-secondary); font-size: 16px; }
.factory-intro-content p { margin-bottom: 16px; }

.factory-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.factory-stat-num { font-size: 2.5rem; font-weight: 800; color: var(--accent); line-height: 1.2; margin-bottom: 8px; }
.factory-stat-label { font-size: 14px; color: rgba(255,255,255,0.8); text-transform: uppercase; letter-spacing: 1px; }

.factory-cat-header { display: flex; align-items: center; gap: 20px; margin-bottom: 32px; }
.factory-cat-icon { width: 64px; height: 64px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 32px; flex-shrink: 0; }
.factory-cat-desc { color: var(--text-secondary); font-size: 15px; margin: 0; }

.factory-gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.factory-gallery-item { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
.factory-gallery-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.factory-gallery-img { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-alt); }
.factory-gallery-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.factory-gallery-item:hover .factory-gallery-img img { transform: scale(1.05); }
.factory-gallery-caption { padding: 14px 16px; }
.factory-gallery-caption strong { display: block; font-size: 15px; color: var(--primary); margin-bottom: 4px; }
.factory-gallery-caption span { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* Homepage factory section */
.home-factory-section { background: var(--bg-alt); }
.home-factory-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.home-factory-text .section-title { margin-bottom: 16px; }
.home-factory-text p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 16px; }
.home-factory-features { list-style: none; padding: 0; margin: 24px 0; }
.home-factory-features li { display: flex; align-items: center; gap: 12px; padding: 10px 0; font-size: 15px; color: var(--text); }
.home-factory-features li::before { content: '✓'; width: 24px; height: 24px; background: var(--accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.home-factory-collage { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; gap: 12px; }
.home-factory-collage .collage-item {grid-column: 1 / -1; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/7; background: var(--primary); }
.home-factory-collage .collage-item img { width: 100%; height: 100%; object-fit: cover; }

/* Product detail factory trust badge */
.product-factory-trust { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); border-radius: var(--radius); padding: 20px; color: #fff; margin-top: 20px; }
.product-factory-trust h4 { font-size: 15px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.product-factory-trust-imgs { display: grid; grid-template-columns: 1fr; gap: 8px; margin-bottom: 12px; }
.product-factory-trust-imgs img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 6px; }
.product-factory-trust a { color: var(--accent); font-size: 13px; font-weight: 600; text-decoration: none; }
.product-factory-trust a:hover { text-decoration: underline; }

@media (max-width: 900px) {
    .factory-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .factory-gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .home-factory-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
    .factory-stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .factory-stat-num { font-size: 1.8rem; }
    .factory-gallery-grid { grid-template-columns: 1fr; }
    .factory-cat-header { flex-direction: column; text-align: center; }
    .home-factory-collage .collage-item:first-child { aspect-ratio: 16/9; }
}

/* ============================================================
   Product Filter Panel (产品筛选面板 - 顶部水平布局)
   ============================================================ */
.filter-panel-top {
    background: var(--bg-card);
    border: 1px solid #e8ecf0;
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}
.filter-panel-top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--primary);
    color: #fff;
}
.filter-panel-top-header h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 0;
}
.filter-panel-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.filter-toggle-btn {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}
.filter-toggle-btn:hover {
    background: rgba(255,255,255,0.25);
}
.filter-toggle-arrow {
    font-size: 10px;
    transition: transform 0.2s;
}
.filter-clear-all {
    background: none;
    border: none;
    color: rgba(255,255,255,0.8);
    font-size: 12px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}
.filter-clear-all:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}
.filter-panel-top-body {
    padding: 16px 20px;
}
.filter-group-row {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f2f5;
}
.filter-group-row:last-child {
    border-bottom: none;
}
.filter-group-label {
    width: 140px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    padding-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-options-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    flex: 1;
}
.filter-option-inline {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 5px 12px;
    border-radius: 20px;
    border: 1px solid #e0e4e8;
    background: #fafbfc;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.15s;
}
.filter-option-inline:hover {
    border-color: var(--accent);
    background: #fff5ef;
}
.filter-option-inline input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}
.filter-option-inline:has(input:checked) {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.filter-advanced {
    border-top: 1px dashed #e0e4e8;
    margin-top: 8px;
    padding-top: 8px;
}
.product-list-full {
    width: 100%;
}
.active-filters {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.active-filters-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}
.active-filters-list {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.active-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--accent);
    color: #fff;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}
.active-filter-tag button {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    padding: 0;
    opacity: 0.8;
}
.active-filter-tag button:hover {
    opacity: 1;
}
.product-result-count {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}
.product-result-count strong {
    color: var(--accent);
    font-size: 18px;
}
.filter-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}
.filter-empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text);
}
.filter-empty-state p {
    font-size: 14px;
    margin-bottom: 16px;
}
@media (max-width: 768px) {
    .filter-group-row {
        flex-direction: column;
        gap: 8px;
    }
    .filter-group-label {
        width: auto;
    }
    .filter-panel-top-header {
        flex-wrap: wrap;
        gap: 10px;
    }
}

/* ============================================================
   Desktop Floating Sidebar CTA (右侧浮动询价栏)
   ============================================================ */
.floating-cta {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.floating-cta-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    color: #fff;
    text-decoration: none;
    position: relative;
    transition: background-color 0.3s ease;
}
.floating-cta-item svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}
.floating-cta-item .floating-cta-label {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 8px 14px;
    border-radius: 6px 0 0 6px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    pointer-events: none;
}
.floating-cta-item .floating-cta-label::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: rgba(0, 0, 0, 0.85);
}
.floating-cta-item:hover .floating-cta-label {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}
.floating-cta-item:hover svg {
    filter: drop-shadow(0 0 4px rgba(255,255,255,0.5));
}
.floating-cta-whatsapp {
    background: #25D366;
    border-radius: 6px 0 0 0;
}
.floating-cta-quote {
    background: var(--primary, #0f2b46);
    border-radius: 0 0 0 6px;
}
@media (max-width: 900px) {
    .floating-cta { display: none; }
}

/* === Comparison Table (Article Content) === */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.comparison-table th {
    background: var(--primary);
    color: #fff;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}
.comparison-table td {
    padding: 10px 16px;
    border-bottom: 1px solid #e0e6ed;
}
.comparison-table tr:nth-child(even) {
    background: #f8fafc;
}
.comparison-table tr:hover {
    background: #eef2f7;
}
/* CTA Box for article end */
.cta-box {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 12px;
    padding: 32px;
    margin: 40px 0;
    text-align: center;
}
.cta-box h3 {
    color: #fff;
    margin: 0 0 12px 0;
    font-size: 22px;
}
.cta-box p {
    color: rgba(255,255,255,0.85);
    margin: 0 0 20px 0;
    font-size: 15px;
    line-height: 1.6;
}
.cta-box .btn-primary {
    background: var(--accent);
    color: #fff !important;
    border-color: var(--accent);
}
.cta-box .btn-primary:hover {
    background: var(--accent-dark);
    color: #fff !important;
    border-color: var(--accent-dark);
}
.cta-box .btn-outline {
    border-color: rgba(255,255,255,0.5);
    color: #fff;
}
.cta-box .btn-outline:hover {
    background: rgba(255,255,255,0.1);
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(10,31,51,0.85) 0%, rgba(15,43,70,0.75) 50%, rgba(26,58,92,0.65) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 10;
}
/* Hero background responsive */
.hero-bg-mobile { display: none; }

@media (max-width: 768px) {
    .hero-bg-desktop { display: none; }
    .hero-bg-mobile { display: block; }
}
/* Hero background picture */
.hero-bg-picture {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    overflow: hidden;
}
.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* === Product Tabs === */
.product-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 0;
}
.product-tab {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-alt);
    border: 2px solid var(--border-light);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: -2px;
}
.product-tab:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(0,86,179,0.05);
}
.product-tab.active {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
    font-weight: 700;
}
@media (max-width: 768px) {
    .product-tab {
        padding: 12px 20px;
        font-size: 14px;
    }
}

}