/* ============================================================
   顶维科技 — Global Design System v2.0
   Brand: Purple #644BF0 | Energy Green #8FC31F | Warm Black #231815
   VI: PDF manual extracted, dual-color logo (purple D/i/V + green N)
   ============================================================ */

/* --- Inter Typeface (self-hosted, ABB Voice inspired) --- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/Inter-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/Inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/Inter-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/Inter-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('../fonts/Inter-800.woff2') format('woff2');
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px; line-height: 1.7; color: #1a1a2e;
  background: #fff; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01", "ss03";
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--p); text-decoration: none; transition: color .2s; }
a:hover { color: var(--p-dark); }
ul, ol { list-style: none; }

/* --- CSS Custom Properties --- */
:root {
  /* Brand Purple (Logo D/i/V) */
  --p: #644BF0;
  --p-dark: #4A35C0;
  --p-light: #8B7AF5;
  --p-bg: #EDEAFF;
  --p-gradient: linear-gradient(135deg, #644BF0 0%, #8B7AF5 100%);
  --p-gradient-dark: linear-gradient(135deg, #4A35C0 0%, #644BF0 100%);

  /* Brand Energy Green (Logo N) — NEW from VI manual */
  --g: #8FC31F;
  --g-dark: #6FA014;
  --g-light: #B5DB5E;
  --g-bg: #F2F9E6;
  --g-gradient: linear-gradient(135deg, #8FC31F 0%, #B5DB5E 100%);

  /* Dual-color accent gradient (purple → green, for special highlights) */
  --accent-gradient: linear-gradient(135deg, #644BF0 0%, #8FC31F 100%);

  /* Warm Black (VI standard dark bg, replaces cold blue-black) */
  --dark: #231815;
  --dark-2: #2E221D;
  --dark-3: #3D2E28;

  /* Neutral Grey (VI standard) */
  --grey: #727171;

  /* Text */
  --text: #1a1a2e;
  --text-2: #4a4a5e;
  --text-3: #7a7a8e;

  /* Backgrounds */
  --bg: #ffffff;
  --bg-2: #f7f7fb;
  --bg-3: #f0f0f7;
  --border: #e8e8f0;

  /* Shadows — purple-tinted + subtle green for success states */
  --shadow-sm: 0 1px 3px rgba(100,75,240,.06);
  --shadow: 0 4px 16px rgba(100,75,240,.08);
  --shadow-lg: 0 12px 40px rgba(100,75,240,.12);
  --shadow-green: 0 4px 16px rgba(143,195,31,.18);

  /* Radius */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  /* Motion */
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --max-w: 1280px;
  --header-h: 72px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.25; color: var(--text); }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { color: var(--text-2); }
.text-gradient {
  background: var(--p-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-green { color: var(--g); }

/* --- Layout --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-2); }
.section-dark { background: var(--dark); color: #fff; }
.section-dark h2, .section-dark h3, .section-dark p { color: rgba(255,255,255,.9); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--p); margin-bottom: 12px;
}
.section-head h2 { margin-bottom: 16px; }
.section-head p { font-size: 1.05rem; color: var(--text-3); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 50px; font-size: .95rem;
  font-weight: 600; cursor: pointer; border: none;
  transition: all var(--transition); text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--p-gradient); color: #fff; box-shadow: 0 4px 16px rgba(100,75,240,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(100,75,240,.4); color: #fff; }
.btn-green { background: var(--g-gradient); color: #fff; box-shadow: 0 4px 16px rgba(143,195,31,.25); }
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(143,195,31,.35); color: #fff; }
.btn-outline { background: transparent; color: var(--p); border: 2px solid var(--p); }
.btn-outline:hover { background: var(--p); color: #fff; }
.btn-white { background: #fff; color: var(--p); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ghost { background: transparent; color: var(--p); padding: 10px 0; }
.btn-ghost:hover { gap: 12px; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 10px 20px; font-size: .85rem; }

/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h); background: rgba(255,255,255,.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.site-header.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.header-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo img { height: 36px; width: auto; }
.logo-text { font-size: 1.4rem; font-weight: 800; color: var(--p); letter-spacing: -.5px; }

/* Main Nav */
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 4px;
  padding: 10px 16px; font-size: .9rem; font-weight: 500;
  color: var(--text); border-radius: var(--radius-sm);
  transition: all .2s; cursor: pointer; text-decoration: none;
}
.nav-link:hover, .nav-link.active { color: var(--p); background: var(--p-bg); }
.nav-link .arrow { font-size: .65rem; transition: transform .2s; }
.nav-item:hover .nav-link .arrow { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 220px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  padding: 8px; opacity: 0; visibility: hidden;
  transition: all .25s;
}
.nav-item:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-link {
  display: block; padding: 10px 16px; font-size: .88rem;
  color: var(--text-2); border-radius: var(--radius-sm);
  transition: all .15s; text-decoration: none;
}
.dropdown-link:hover { background: var(--p-bg); color: var(--p); }
.dropdown-link strong { display: block; color: var(--text); font-weight: 600; margin-bottom: 2px; }
.dropdown-link span { font-size: .8rem; color: var(--text-3); }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  display: flex; align-items: center; gap: 4px;
  padding: 6px 12px; border-radius: 50px;
  background: var(--bg-2); font-size: .8rem; font-weight: 600;
  cursor: pointer; border: none; transition: all .2s;
}
.lang-toggle:hover { background: var(--p-bg); }
.lang-toggle .active-lang { color: var(--p); }
.lang-toggle .sep { color: var(--text-3); }
.mobile-menu-btn {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
}
.mobile-menu-btn span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all .3s;
}

/* Mobile Nav */
.mobile-nav {
  display: none; position: fixed; top: var(--header-h); left: 0; right: 0;
  background: #fff; border-bottom: 1px solid var(--border);
  max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  padding: 16px 24px; z-index: 999;
}
.mobile-nav.open { display: block; }
.mobile-nav-link {
  display: block; padding: 14px 0; font-size: 1rem; font-weight: 500;
  color: var(--text); border-bottom: 1px solid var(--border);
  text-decoration: none;
}

/* ============================================================
   HERO SECTIONS
   ============================================================ */
.hero {
  position: relative; min-height: 600px;
  display: flex; align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(35,24,21,.90) 0%, rgba(74,53,192,.70) 55%, rgba(100,75,240,.50) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero p { color: rgba(255,255,255,.8); font-size: 1.15rem; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero with animated particles/grid */
.hero-particles {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(100,75,240,.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(139,122,245,.12) 0%, transparent 40%),
    radial-gradient(circle at 65% 75%, rgba(143,195,31,.08) 0%, transparent 45%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(100,75,240,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100,75,240,.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* Light Hero (for inner pages) */
.hero-light {
  position: relative; padding: calc(var(--header-h) + 60px) 0 60px;
  background: var(--bg-2); overflow: hidden;
}
.hero-light::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 400px; height: 400px; border-radius: 50%;
  background: var(--p-bg); opacity: .6;
}
.hero-light .container { position: relative; z-index: 2; }
.breadcrumb { font-size: .85rem; color: var(--text-3); margin-bottom: 16px; }
.breadcrumb a { color: var(--text-3); }
.breadcrumb a:hover { color: var(--p); }
.breadcrumb span { margin: 0 8px; }

/* ============================================================
   STATS / NUMBERS BAR
   ============================================================ */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; padding: 48px 0;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
  background: var(--p-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.1;
}
.stat-num .unit { font-size: .5em; font-weight: 600; }
.stat-label { font-size: .9rem; color: var(--text-3); margin-top: 8px; }

/* Stats on dark */
.section-dark .stat-num {
  background: linear-gradient(135deg, #fff 0%, var(--p-light) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-dark .stat-label { color: rgba(255,255,255,.6); }

/* ============================================================
   CARDS
   ============================================================ */
.card-grid {
  display: grid; gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 32px;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-icon {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: var(--p-bg); display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.5rem;
}
.card h3 { margin-bottom: 12px; font-size: 1.15rem; }
.card p { font-size: .92rem; color: var(--text-3); }
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; font-size: .88rem; font-weight: 600; color: var(--p);
}
.card-link:hover { gap: 10px; }

/* Card with image */
.card-img {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); background: #fff;
  transition: all var(--transition);
}
.card-img:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img .img-wrap {
  aspect-ratio: 16/10; overflow: hidden; background: var(--bg-2);
}
.card-img .img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s;
}
.card-img:hover .img-wrap img { transform: scale(1.05); }
.card-img .card-body { padding: 24px; }
.card-img .card-tag {
  display: inline-block; padding: 4px 12px; border-radius: 50px;
  background: var(--p-bg); color: var(--p);
  font-size: .75rem; font-weight: 600; margin-bottom: 12px;
}
.card-img h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card-img p { font-size: .88rem; color: var(--text-3); }

/* Product spec card */
.spec-card {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
}
.spec-card-header {
  padding: 24px 28px; background: var(--p-gradient); color: #fff;
}
.spec-card-header h3 { color: #fff; font-size: 1.2rem; }
.spec-card-header .subtitle { color: rgba(255,255,255,.8); font-size: .85rem; margin-top: 4px; }
.spec-card-body { padding: 28px; }

/* ============================================================
   FEATURE / SPLIT SECTIONS (Ipsen-style alternating)
   ============================================================ */
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  align-items: center; padding: 60px 0;
}
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-img {
  border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4/3; background: var(--bg-2);
}
.feature-img img { width: 100%; height: 100%; object-fit: cover; }
.feature-text .eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--p); margin-bottom: 12px;
}
.feature-text h2 { margin-bottom: 20px; }
.feature-text p { margin-bottom: 16px; font-size: 1rem; color: var(--text-2); }
.feature-list { margin-top: 24px; }
.feature-list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 0; font-size: .95rem; color: var(--text-2);
}
.feature-list .check {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: var(--p-bg); color: var(--p);
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 700;
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline { position: relative; padding: 20px 0; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--border); transform: translateX(-50%);
}
.timeline-item {
  display: grid; grid-template-columns: 1fr 60px 1fr;
  gap: 0; margin-bottom: 40px; align-items: start;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  grid-column: 2; width: 16px; height: 16px; border-radius: 50%;
  background: var(--p-gradient); margin: 8px auto 0;
  box-shadow: 0 0 0 4px var(--p-bg); position: relative; z-index: 2;
}
.timeline-content { padding: 0 24px; }
.timeline-item:nth-child(odd) .timeline-content { text-align: right; grid-column: 1; }
.timeline-item:nth-child(even) .timeline-content { grid-column: 3; }
.timeline-year {
  font-size: 1.5rem; font-weight: 800; color: var(--p);
  margin-bottom: 8px;
}
.timeline-content h4 { margin-bottom: 6px; }
.timeline-content p { font-size: .88rem; color: var(--text-3); }

/* ============================================================
   PROCESS / SERVICE CHAIN (horizontal)
   ============================================================ */
.process-chain {
  display: flex; align-items: stretch; gap: 0;
  position: relative; padding: 20px 0;
}
.process-step {
  flex: 1; text-align: center; position: relative; padding: 0 12px;
}
.process-step .step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--p-gradient); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700;
  margin: 0 auto 16px; position: relative; z-index: 2;
  box-shadow: 0 4px 16px rgba(100,75,240,.3);
}
.process-step h4 { font-size: .95rem; margin-bottom: 6px; }
.process-step p { font-size: .82rem; color: var(--text-3); }
.process-arrow {
  position: absolute; top: 28px; right: -12px;
  color: var(--p-light); font-size: 1.2rem; z-index: 3;
}

/* ============================================================
   TABLES
   ============================================================ */
.spec-table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.spec-table {
  width: 100%; border-collapse: collapse; font-size: .9rem;
}
.spec-table th {
  background: var(--p-gradient); color: #fff;
  padding: 14px 20px; text-align: left; font-weight: 600;
  white-space: nowrap;
}
.spec-table td {
  padding: 12px 20px; border-bottom: 1px solid var(--border);
  color: var(--text-2);
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:nth-child(even) { background: var(--bg-2); }
.spec-table .param-name { font-weight: 600; color: var(--text); white-space: nowrap; }
.spec-table .param-val { font-family: "SF Mono", "Fira Code", monospace; color: var(--p); font-weight: 600; }

/* ============================================================
   FORMS
   ============================================================ */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: .88rem; font-weight: 600; color: var(--text); }
.form-label .req { color: #e53e3e; }
.form-input, .form-select, .form-textarea {
  padding: 12px 16px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: .95rem;
  font-family: inherit; color: var(--text);
  background: #fff; transition: border-color .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--p);
  box-shadow: 0 0 0 3px rgba(100,75,240,.1);
}
.form-textarea { min-height: 140px; resize: vertical; }

/* ============================================================
   TABS
   ============================================================ */
.tabs { border-bottom: 2px solid var(--border); display: flex; gap: 0; margin-bottom: 32px; overflow-x: auto; }
.tab-btn {
  padding: 14px 24px; font-size: .92rem; font-weight: 600;
  color: var(--text-3); background: none; border: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.tab-btn:hover { color: var(--p); }
.tab-btn.active { color: var(--p); border-bottom-color: var(--p); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================================
   ACCORDION (FAQ)
   ============================================================ */
.accordion-item {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 12px; overflow: hidden;
}
.accordion-header {
  width: 100%; padding: 18px 24px; background: #fff;
  border: none; cursor: pointer; display: flex;
  justify-content: space-between; align-items: center;
  font-size: .95rem; font-weight: 600; color: var(--text);
  text-align: left; transition: background .2s;
}
.accordion-header:hover { background: var(--bg-2); }
.accordion-icon {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--p-bg); color: var(--p);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; transition: transform .3s;
}
.accordion-item.open .accordion-icon { transform: rotate(45deg); }
.accordion-body {
  max-height: 0; overflow: hidden; transition: max-height .3s ease;
}
.accordion-body-inner { padding: 0 24px 20px; color: var(--text-2); font-size: .92rem; }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: var(--p-gradient); border-radius: var(--radius-lg);
  padding: 56px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,.08);
}
.cta-banner::after {
  content: ''; position: absolute; bottom: -30%; left: -10%;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,.05);
}
.cta-banner h2 { color: #fff; margin-bottom: 12px; position: relative; z-index: 2; }
.cta-banner p { color: rgba(255,255,255,.85); margin-bottom: 28px; position: relative; z-index: 2; }
.cta-banner .btn { position: relative; z-index: 2; }

/* ============================================================
   CLIENT / PARTNER LOGOS
   ============================================================ */
.logo-wall {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 16px; align-items: center;
}
.logo-item {
  aspect-ratio: 3/1; display: flex; align-items: center; justify-content: center;
  background: var(--bg-2); border-radius: var(--radius-sm);
  font-weight: 700; color: var(--text-3); font-size: .9rem;
  transition: all .2s; padding: 12px; text-align: center;
}
.logo-item:hover { background: var(--p-bg); color: var(--p); }
.logo-item.highlight {
  background: var(--p-gradient); color: #fff;
  box-shadow: 0 4px 16px rgba(100,75,240,.25);
}

/* ============================================================
   NEWS / BLOG CARDS
   ============================================================ */
.news-meta {
  display: flex; gap: 16px; font-size: .82rem; color: var(--text-3);
  margin-bottom: 12px;
}
.news-meta .date { font-weight: 600; color: var(--p); }
.news-card .card-body { padding: 20px 24px 24px; }
.news-card h3 { font-size: 1rem; line-height: 1.5; margin-bottom: 8px; }

/* ============================================================
   BADGE / TAG
   ============================================================ */
.badge {
  display: inline-block; padding: 4px 12px; border-radius: 50px;
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-primary { background: var(--p-bg); color: var(--p); }
.badge-dark { background: var(--dark); color: #fff; }
.badge-success { background: var(--g-bg); color: var(--g-dark); }
.badge-green { background: var(--g-bg); color: var(--g-dark); }
.badge-warning { background: #fff8e6; color: #b8860b; }

/* Green accent card icon (for sustainability/eco sections) */
.card-icon-green {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: var(--g-bg); color: var(--g-dark);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.5rem;
}

/* Spec value highlight in green (key thermal numbers) */
.spec-table .param-val.highlight-green { color: var(--g-dark); }

/* Section eyebrow green variant */
.eyebrow-green { color: var(--g-dark) !important; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 48px;
}
.footer-brand img { height: 40px; margin-bottom: 16px; }
.footer-brand p { font-size: .88rem; line-height: 1.7; color: rgba(255,255,255,.5); max-width: 320px; }
.footer-col h4 {
  color: #fff; font-size: .9rem; margin-bottom: 20px;
  font-weight: 600;
}
.footer-col a {
  display: block; color: rgba(255,255,255,.5); font-size: .85rem;
  padding: 6px 0; transition: color .2s; text-decoration: none;
}
.footer-col a:hover { color: var(--p-light); }
.footer-contact-item {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 8px 0; font-size: .85rem; color: rgba(255,255,255,.5);
}
.footer-contact-item .icon { color: var(--p-light); flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0; display: flex;
  justify-content: space-between; align-items: center;
  font-size: .8rem; color: rgba(255,255,255,.35);
}
.footer-bottom a { color: rgba(255,255,255,.35); margin-left: 20px; }
.footer-bottom a:hover { color: rgba(255,255,255,.6); }

/* ============================================================
   ANIMATIONS (scroll reveal)
   ============================================================ */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
/* Fallback: if JS fails, show all content after 2s */
@keyframes revealFallback { to { opacity: 1; transform: translateY(0); } }
html:not(.js-ready) .reveal { animation: revealFallback .01s 2s forwards; }
html.js-ready .reveal { /* JS controls visibility */ }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* Floating animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.float { animation: float 4s ease-in-out infinite; }

/* Pulse glow */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(100,75,240,.3); }
  50% { box-shadow: 0 0 40px rgba(100,75,240,.6); }
}
.pulse-glow { animation: pulseGlow 3s ease-in-out infinite; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .feature-row { grid-template-columns: 1fr; gap: 32px; padding: 40px 0; }
  .feature-row.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
  .process-chain { flex-wrap: wrap; gap: 24px; }
  .process-step { flex: 0 0 calc(50% - 12px); }
  .process-arrow { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero { min-height: auto; padding-bottom: 56px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .timeline::before { left: 20px; }
  .timeline-item { grid-template-columns: 40px 1fr; }
  .timeline-dot { grid-column: 1; margin: 8px 0 0 12px; }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 2; text-align: left; padding: 0 0 0 20px;
  }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .process-step { flex: 0 0 100%; }
  .header-actions .lang-toggle { display: none; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .site-footer, .hero-actions, .cta-banner, .mobile-menu-btn { display: none !important; }
  body { font-size: 12pt; color: #000; }
  a { color: #000; text-decoration: underline; }
  .section { padding: 20px 0; page-break-inside: avoid; }
}

/* ============================================================
   LANDSPACE-INSPIRED COMPONENTS (large-format showcase)
   ============================================================ */

/* Big product showcase (hero-like product block) */
.showcase {
  position: relative; padding: 100px 0; overflow: hidden;
}
.showcase-dark { background: var(--dark); color: #fff; }
.showcase-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  align-items: center;
}
.showcase-dark h2, .showcase-dark h3, .showcase-dark p { color: rgba(255,255,255,.9); }
.showcase-visual {
  position: relative; aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at center, rgba(100,75,240,.15), transparent 70%);
}
.showcase-visual img {
  max-width: 80%; max-height: 80%; object-fit: contain;
  filter: drop-shadow(0 20px 60px rgba(100,75,240,.3));
}
.showcase-eyebrow {
  display: inline-block; font-size: .85rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 3px;
  color: var(--p); margin-bottom: 20px;
}
.showcase-dark .showcase-eyebrow { color: var(--p-light); }
.showcase h2 {
  font-size: clamp(2rem, 4vw, 3rem); line-height: 1.2;
  margin-bottom: 24px;
}
.showcase-lead {
  font-size: 1.15rem; line-height: 1.9; margin-bottom: 28px;
  color: var(--text-2);
}
.showcase-dark .showcase-lead { color: rgba(255,255,255,.7); }
.showcase-features { display: grid; gap: 14px; margin-bottom: 32px; }
.showcase-features li {
  display: flex; align-items: flex-start; gap: 14px;
  font-size: 1rem; color: var(--text-2);
}
.showcase-dark .showcase-features li { color: rgba(255,255,255,.8); }
.showcase-features li::before {
  content: ''; flex-shrink: 0; width: 24px; height: 24px;
  border-radius: 50%; background: var(--p-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23644BF0'%3E%3Cpath d='M6.5 11.5L3 8l1-1 2.5 2.5L12 4l1 1z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center; background-size: 16px;
}

/* Spec grid (dense parameter grid like LandSpace rocket specs) */
.spec-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: 1px solid var(--border);
}
.showcase-dark .spec-grid { border-top-color: rgba(255,255,255,.12); }
.spec-cell {
  padding: 24px 20px; border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.spec-cell:nth-child(4n) { border-right: none; }
.showcase-dark .spec-cell { border-color: rgba(255,255,255,.12); }
.spec-cell .label {
  font-size: .8rem; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 1px;
}
.showcase-dark .spec-cell .label { color: rgba(255,255,255,.5); }
.spec-cell .value {
  font-size: 1.35rem; font-weight: 700; color: var(--text);
  line-height: 1.2;
}
.showcase-dark .spec-cell .value {
  color: #fff;
  background: linear-gradient(135deg, #fff 0%, var(--p-light) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.spec-cell .unit { font-size: .8rem; font-weight: 500; color: var(--text-3); margin-left: 4px; }
.showcase-dark .spec-cell .unit { color: rgba(255,255,255,.45); }

.spec-grid-3 { grid-template-columns: repeat(3, 1fr); }
.spec-grid-3 .spec-cell:nth-child(3n) { border-right: none; }
.spec-grid-3 .spec-cell:nth-child(4n) { border-right: 1px solid var(--border); }
.spec-grid-2 { grid-template-columns: repeat(2, 1fr); }
.spec-grid-2 .spec-cell:nth-child(2n) { border-right: none; }
.spec-grid-2 .spec-cell:nth-child(4n) { border-right: 1px solid var(--border); }

/* Big service block (LandSpace-style product service) */
.service-block {
  padding: 96px 0;
}
.service-block-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.service-block-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.3; margin-bottom: 16px;
}
.service-block-intro {
  font-size: 1.05rem; color: var(--text-2); line-height: 1.8;
  margin-bottom: 32px;
}
.service-list { display: grid; gap: 0; }
.service-item {
  display: flex; gap: 20px; padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left .2s;
}
.service-item:hover { padding-left: 8px; }
.service-num {
  font-size: 1.4rem; font-weight: 800; color: var(--p);
  min-width: 48px; line-height: 1.2;
}
.service-item h4 { font-size: 1.05rem; margin-bottom: 4px; }
.service-item p { font-size: .9rem; color: var(--text-3); margin: 0; }

/* Mission / Vision block (LandSpace about style) */
.mv-block {
  position: relative; min-height: 520px;
  display: flex; align-items: center;
  padding: 100px 0; overflow: hidden;
}
.mv-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
}
.mv-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(35,24,21,.88) 0%, rgba(74,53,192,.60) 100%);
}
.mv-block .container { position: relative; z-index: 2; }
.mv-tag {
  display: inline-block; font-size: .85rem; font-weight: 700;
  color: var(--p-light); letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 20px;
}
.mv-slogan {
  color: #fff; font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800; line-height: 1.15; max-width: 800px;
  margin-bottom: 20px;
}
.mv-slogan-en {
  color: rgba(255,255,255,.6); font-size: 1.1rem;
  letter-spacing: 2px; max-width: 700px;
  font-weight: 300;
}
.mv-num {
  position: absolute; right: 40px; bottom: 40px;
  font-size: clamp(6rem, 15vw, 12rem); font-weight: 800;
  color: rgba(255,255,255,.06); line-height: 1; z-index: 1;
}

/* Responsive for showcase components */
@media (max-width: 1024px) {
  .showcase-grid, .service-block-grid { grid-template-columns: 1fr; gap: 40px; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-cell:nth-child(4n) { border-right: 1px solid var(--border); }
  .spec-cell:nth-child(2n) { border-right: none; }
  .showcase { padding: 72px 0; }
  .service-block { padding: 72px 0; }
  .mv-block { min-height: 420px; padding: 72px 0; }
}
@media (max-width: 768px) {
  .spec-grid, .spec-grid-3, .spec-grid-2 { grid-template-columns: 1fr; }
  .spec-cell, .spec-cell:nth-child(n) { border-right: none; }
}

/* ============================================================
   EN locale typography — ABB-inspired (Inter, tighter metrics)
   ============================================================ */
html[lang="en"] body { font-size: 16px; line-height: 1.65; letter-spacing: -0.005em; }
html[lang="en"] h1 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); letter-spacing: -0.02em; line-height: 1.15; font-weight: 800; }
html[lang="en"] h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); letter-spacing: -0.015em; line-height: 1.2; font-weight: 700; }
html[lang="en"] h3 { font-size: 1.25rem; letter-spacing: -0.01em; font-weight: 600; }
html[lang="en"] h4 { font-size: 1.05rem; font-weight: 600; letter-spacing: 0; }
html[lang="en"] .hero-sub,
html[lang="en"] .section-sub { font-size: 1.075rem; line-height: 1.6; letter-spacing: 0; }
html[lang="en"] .stat-num,
html[lang="en"] .counter { font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
html[lang="en"] .btn { letter-spacing: 0.01em; font-weight: 600; }
html[lang="en"] .nav-link { font-weight: 500; letter-spacing: 0.005em; }
html[lang="en"] .param-grid .param-value,
html[lang="en"] .spec-value { font-variant-numeric: tabular-nums; font-weight: 600; }