/* TianRongPack — International Site */
:root {
  --blue-900: #0a2540;
  --blue-800: #0d3a6b;
  --blue-700: #1456a0;
  --blue-600: #1a6fd4;
  --blue-500: #2196f3;
  --blue-100: #e8f2fc;
  --blue-50: #f4f9ff;
  --gold: #c9a227;
  --text: #1a2b3c;
  --text-muted: #5a6b7d;
  --white: #ffffff;
  --border: #dde6f0;
  --shadow: 0 4px 24px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 12px 48px rgba(10, 37, 64, 0.14);
  --radius: 8px;
  --radius-lg: 16px;
  --header-h: 80px;
  --transition: 0.3s ease;
  --max-w: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-500); }

.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 40px; width: auto; display: block; }
.site-footer .footer-brand .logo-img { height: 36px; }
.logo-mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--blue-800), var(--blue-500));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-weight: 800; font-size: 18px; letter-spacing: -1px;
}
.logo-text { line-height: 1.2; }
.logo-text strong { display: block; font-size: 18px; color: var(--blue-900); letter-spacing: 0.5px; }
.logo-text span { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 14px; font-size: 14px; font-weight: 500;
  color: var(--text); border-radius: 6px; transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active { color: var(--blue-700); background: var(--blue-50); }

.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: " ▾"; font-size: 10px; opacity: 0.6; }
.nav-dropdown-menu {
  position: absolute; top: 100%; left: 0; min-width: 220px;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all var(--transition);
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown-menu a { display: block; padding: 10px 14px; border-radius: 6px; }
.nav-dropdown-menu a:hover { background: var(--blue-50); }
.nav-dropdown-menu a.active { background: var(--blue-50); color: var(--blue-700); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  font-size: 12px; font-weight: 600; color: var(--blue-700);
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  white-space: nowrap;
}
.lang-switch a { color: var(--blue-600); text-decoration: none; }
.lang-switch a:hover { text-decoration: underline; }
.lang-switch strong { color: var(--blue-900); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; font-size: 14px; font-weight: 600;
  border-radius: var(--radius); border: none; cursor: pointer;
  transition: all var(--transition); text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  color: var(--white); box-shadow: 0 4px 16px rgba(20, 86, 160, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(20, 86, 160, 0.4); color: var(--white); }
.btn-outline {
  background: transparent; color: var(--blue-700);
  border: 2px solid var(--blue-700);
}
.btn-outline:hover { background: var(--blue-700); color: var(--white); }
.btn-white { background: var(--white); color: var(--blue-800); }
.btn-white:hover { background: var(--blue-50); color: var(--blue-800); }

.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
}
.menu-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--blue-900); transition: all var(--transition);
}

/* ── Hero ── */
.hero {
  position: relative; min-height: 100vh; margin-top: var(--header-h);
  display: flex; align-items: center; overflow: hidden;
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0;
  transition: opacity 1s ease;
  background-size: cover; background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(10,37,64,0.88) 0%, rgba(10,37,64,0.55) 55%, rgba(10,37,64,0.25) 100%);
}
.hero-content {
  position: relative; z-index: 2; padding: 80px 0;
  max-width: 680px;
}
.hero-badge {
  display: inline-block; padding: 6px 16px; margin-bottom: 24px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
  border-radius: 100px; color: rgba(255,255,255,0.9);
  font-size: 13px; font-weight: 500; letter-spacing: 0.5px;
}
.hero h1 {
  font-size: clamp(36px, 5vw, 58px); font-weight: 800;
  color: var(--white); line-height: 1.15; margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero h1 em { font-style: normal; color: var(--blue-500); }
.hero-desc {
  font-size: 18px; color: rgba(255,255,255,0.82); margin-bottom: 36px;
  line-height: 1.7; max-width: 540px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-dots {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 3;
}
.hero-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.4); border: none; cursor: pointer;
  transition: all var(--transition);
}
.hero-dot.active { background: var(--white); width: 28px; border-radius: 5px; }

/* ── Section Common ── */
section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  display: inline-block; font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--blue-600); margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(28px, 3.5vw, 40px); font-weight: 800;
  color: var(--blue-900); margin-bottom: 16px; letter-spacing: -0.3px;
}
.section-header p {
  font-size: 17px; color: var(--text-muted); max-width: 620px; margin: 0 auto;
}
.bg-light { background: var(--blue-50); }
.bg-dark { background: var(--blue-900); color: var(--white); }
.bg-dark .section-header h2 { color: var(--white); }
.bg-dark .section-header p { color: rgba(255,255,255,0.7); }

/* ── Stats Wall ── */
.stats-wall {
  background: var(--blue-900);
  background-size: cover; background-position: center; background-attachment: fixed;
  position: relative; padding: 72px 0;
}
.stats-wall::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(10,37,64,0.85);
}
.stats-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.stat-item { text-align: center; }
.stat-number {
  font-size: clamp(36px, 4vw, 52px); font-weight: 800;
  color: var(--white); line-height: 1;
}
.stat-number span { color: var(--blue-500); }
.stat-label {
  margin-top: 10px; font-size: 14px; color: rgba(255,255,255,0.7);
  font-weight: 500;
}

/* ── Cards Grid ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
  transition: all var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-img { aspect-ratio: 4/3; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card-img img { transform: scale(1.06); }
.card-body { padding: 24px; }
.card-body h3 { font-size: 18px; font-weight: 700; color: var(--blue-900); margin-bottom: 8px; }
.card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.card-link { display: block; color: inherit; }
.card-link:hover { color: inherit; }

/* ── Advantages ── */
.advantages-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.advantage-item {
  padding: 36px 28px; background: var(--white);
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  transition: all var(--transition);
}
.advantage-item:hover { border-color: var(--blue-500); box-shadow: var(--shadow); }
.advantage-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-100), var(--blue-50));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 20px;
}
.advantage-item h3 { font-size: 18px; font-weight: 700; color: var(--blue-900); margin-bottom: 10px; }
.advantage-item p { font-size: 14px; color: var(--text-muted); }

/* ── Process Steps ── */
.process-steps {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  position: relative;
}
.process-step { text-align: center; padding: 0 16px; position: relative; }
.process-step::after {
  content: "→"; position: absolute; right: -8px; top: 28px;
  color: var(--blue-500); font-size: 20px;
}
.process-step:last-child::after { display: none; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-800), var(--blue-500));
  color: var(--white); font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.process-step h4 { font-size: 15px; font-weight: 700; color: var(--blue-900); margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--text-muted); }

/* ── Factory Gallery ── */
.factory-scroll {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.factory-item { border-radius: var(--radius); overflow: hidden; position: relative; cursor: zoom-in; }
.factory-item img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.factory-item figcaption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 12px 16px; background: linear-gradient(transparent, rgba(10,37,64,0.85));
  color: var(--white); font-size: 13px; font-weight: 600;
}

/* ── Partners ── */
.partners-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px;
  align-items: center;
}
.partner-logo {
  background: var(--white); border-radius: var(--radius);
  padding: 16px; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  height: 80px; transition: all var(--transition);
}
.partner-logo:hover { border-color: var(--blue-500); box-shadow: var(--shadow); }
.partner-logo img { max-height: 48px; width: auto; object-fit: contain; filter: grayscale(30%); transition: filter var(--transition); }
.partner-logo:hover img { filter: none; }

/* ── Inquiry / Contact Form ── */
.inquiry-section { background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 100%); }
.inquiry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.inquiry-info h2 { font-size: 36px; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.inquiry-info p { color: rgba(255,255,255,0.75); margin-bottom: 32px; font-size: 16px; }
.contact-detail { display: flex; gap: 16px; margin-bottom: 20px; align-items: flex-start; }
.contact-detail-icon {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.contact-detail strong { display: block; color: var(--white); font-size: 14px; margin-bottom: 2px; }
.contact-detail span { color: rgba(255,255,255,0.65); font-size: 14px; }

.inquiry-form {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px; box-shadow: var(--shadow-lg);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color var(--transition); background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(33,150,243,0.15);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit { width: 100%; margin-top: 8px; }

/* ── Page Banner ── */
.page-banner {
  margin-top: var(--header-h); padding: 80px 0 64px;
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  position: relative; overflow: hidden;
}
.page-banner::after {
  content: ""; position: absolute; right: -100px; top: -100px;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.page-banner h1 { font-size: clamp(32px, 4vw, 44px); font-weight: 800; color: var(--white); margin-bottom: 12px; }
.page-banner p { color: rgba(255,255,255,0.75); font-size: 17px; max-width: 560px; }
.breadcrumb { margin-top: 20px; font-size: 13px; color: rgba(255,255,255,0.5); }
/* .breadcrumb a { color: rgba(255,255,255,0.7); } */
/* .breadcrumb a:hover { color: var(--white); } */

/* ── Content Blocks ── */
.content-block { padding: 72px 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }
.content-text h2 { font-size: 32px; font-weight: 800; color: var(--blue-900); margin-bottom: 16px; }
.content-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 15px; line-height: 1.8; }
.content-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); max-width: 450px;}

.feature-list { list-style: none; margin-top: 24px; }
.feature-list li {
  padding: 10px 0 10px 28px; position: relative;
  font-size: 15px; color: var(--text);
  border-bottom: 1px solid var(--border);
}
.feature-list li::before {
  content: "✓"; position: absolute; left: 0;
  color: var(--blue-600); font-weight: 700;
}

/* ── Gallery ── */
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.gallery-item {
  border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 1; cursor: pointer;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.05); }

.gallery-item:hover img { transform: scale(1.05); }
.gallery-item[data-lightbox] { cursor: zoom-in; }
.gallery-item[data-lightbox]::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(10,37,64,0); transition: background 0.3s;
}
.gallery-item[data-lightbox] { position: relative; }
.gallery-item[data-lightbox]:hover::after { background: rgba(10,37,64,0.15); }

/* Equipment grid with lightbox */
.equipment-grid .card { cursor: zoom-in; }
.equipment-grid .card-img::after {
  content: "🔍"; position: absolute; bottom: 10px; right: 10px;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center;
  font-size: 14px; opacity: 0; transition: opacity 0.3s;
}
.equipment-grid .card:hover .card-img::after { opacity: 1; }
.equipment-grid .card-img { position: relative; }

/* Process detail */
.process-detail-hero {
  margin-top: var(--header-h); padding: 48px 0;
  background: var(--blue-50); border-bottom: 1px solid var(--border);
}
.process-detail-hero .two-col { align-items: center; }
.process-detail-body { padding: 56px 0; }
.process-detail-body h3 {
  font-size: 20px; font-weight: 700; color: var(--blue-900);
  margin: 32px 0 12px; padding-top: 8px;
}
.process-detail-body p, .process-detail-body li {
  color: var(--text-muted); font-size: 15px; line-height: 1.85; margin-bottom: 12px;
}
.process-detail-body ul { margin: 12px 0 12px 20px; }
.process-detail-body img {
  border-radius: var(--radius-lg); box-shadow: var(--shadow); margin: 24px auto; max-width: 100%;
}
.process-detail-body hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(10,37,64,0.92); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; visibility: hidden; transition: all 0.3s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-img {
  max-width: 92vw; max-height: 85vh; object-fit: contain;
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  transform: scale(0.95); transition: transform 0.3s ease;
}
.lightbox.open .lightbox-img { transform: scale(1); }
.lightbox-caption {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,0.85); font-size: 14px; text-align: center; max-width: 600px;
}
.lightbox-close {
  position: absolute; top: 20px; right: 24px;
  background: none; border: none; color: var(--white);
  font-size: 36px; cursor: pointer; line-height: 1; opacity: 0.8;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.15); border: none; color: var(--white);
  width: 48px; height: 48px; border-radius: 50%; font-size: 24px; cursor: pointer;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.25); }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

/* Product case detail */
.case-showcase { max-width: 900px; margin: 0 auto; }
.case-main-img {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); background: var(--blue-50);
  aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}
.case-main-img img { width: 100%; height: 100%; object-fit: contain; }
.case-thumbs {
  display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; justify-content: center;
}
.case-thumb {
  width: 72px; height: 72px; padding: 0; border: 2px solid var(--border);
  border-radius: var(--radius); overflow: hidden; cursor: pointer;
  background: var(--white); transition: border-color 0.2s;
}
.case-thumb.active, .case-thumb:hover { border-color: var(--blue-500); }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* Case card (button styled as card) */
button.case-card {
  display: block; width: 100%; padding: 0; border: none;
  background: var(--white); text-align: left; font: inherit; color: inherit; cursor: pointer;
}
button.case-card:focus-visible { outline: 2px solid var(--blue-500); outline-offset: 2px; }

/* Inline case viewer modal */
.case-viewer {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(10, 37, 64, 0.72); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; visibility: hidden; transition: opacity 0.25s, visibility 0.25s;
}
.case-viewer.open { opacity: 1; visibility: visible; }
.case-viewer-panel {
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); width: min(920px, 100%);
  max-height: calc(100vh - 48px); overflow-y: auto; padding: 28px 32px 32px;
  position: relative; transform: translateY(16px); transition: transform 0.25s;
}
.case-viewer.open .case-viewer-panel { transform: translateY(0); }
.case-viewer-close {
  position: absolute; top: 12px; right: 16px; width: 36px; height: 36px;
  border: none; background: var(--blue-50); border-radius: 50%;
  font-size: 22px; line-height: 1; cursor: pointer; color: var(--blue-900);
}
.case-viewer-close:hover { background: var(--blue-100); }
.case-viewer-title {
  font-size: 22px; font-weight: 700; color: var(--blue-900);
  margin: 0 40px 20px 0;
}
.case-viewer-main-wrap { cursor: zoom-in; }
.case-viewer-hint {
  margin-top: 16px; font-size: 13px; color: var(--text-muted); text-align: center;
}

@media (max-width: 640px) {
  .case-viewer { padding: 12px; }
  .case-viewer-panel { padding: 20px 16px 24px; }
  .case-thumb { width: 56px; height: 56px; }
}

/* ── Footer ── */
.site-footer {
  background: var(--blue-900); color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: var(--white); font-size: 14px; font-weight: 700; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 14px; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  padding: 24px 0; display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
}

/* ── WhatsApp Float ── */
.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 60px; height: 60px; border-radius: 50%;
  background: #25d366; color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: all var(--transition);
}
.whatsapp-float:hover { transform: scale(1.1); color: var(--white); box-shadow: 0 8px 32px rgba(37,211,102,0.55); }
.whatsapp-float svg { width: 32px; height: 32px; fill: currentColor; }

/* ── Mobile Nav ── */
.mobile-nav {
  display: none; position: fixed; inset: 0; z-index: 2000;
  background: rgba(10,37,64,0.95); backdrop-filter: blur(8px);
  flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.mobile-nav.open { opacity: 1; visibility: visible; }
.mobile-nav a {
  color: var(--white); font-size: 20px; font-weight: 600;
  padding: 12px 24px; border-radius: 8px;
}
.mobile-nav a:hover { background: rgba(255,255,255,0.1); color: var(--white); }
.mobile-nav-group {
  display: block; margin-top: 16px; padding: 8px 24px 4px;
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1.5px; color: rgba(255,255,255,0.45);
}
.mobile-nav-sub { font-size: 17px !important; padding-left: 40px !important; opacity: 0.9; }
.mobile-nav-close {
  position: absolute; top: 24px; right: 24px;
  background: none; border: none; color: var(--white);
  font-size: 32px; cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .process-step::after { display: none; }
  .factory-scroll { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .inquiry-grid { grid-template-columns: 1fr; gap: 40px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .main-nav, .header-actions .btn { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav { display: flex; }
  section { padding: 64px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .advantages-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .factory-scroll { grid-template-columns: 1fr 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-content { padding: 48px 0; }
  .inquiry-form { padding: 28px; }
}

@media (max-width: 480px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-scroll { grid-template-columns: 1fr; }
}