/* ==========================================================================
   VoltTest — Battery Testing Equipment Manufacturer
   Design System: Deep Navy #0A1628 + Tech Blue #1E6EF7 + White
   Font: Inter (Google Fonts, system fallback)
   ========================================================================== */

/* ---------- Variables & Reset ---------- */
:root {
  --navy-900: #0A1628;
  --navy-800: #0E1E36;
  --navy-700: #132844;
  --navy-600: #1A3357;
  --blue-600: #1E6EF7;
  --blue-500: #3B82F6;
  --blue-400: #6FA0FF;
  --blue-100: #E3EEFF;
  --sky: #4FC3F7;
  --ink: #12203A;
  --slate: #5B6B82;
  --line: #E3E9F2;
  --bg-soft: #F4F7FB;
  --white: #FFFFFF;
  --green: #16A34A;
  --amber: #F59E0B;
  --red: #DC2626;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 24px 60px rgba(10, 22, 40, 0.16);
  --font: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --nav-h: 76px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: var(--blue-600); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--blue-500); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
::selection { background: var(--blue-600); color: #fff; }

.container { width: min(1200px, 92%); margin-inline: auto; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--blue-600); font-size: .78rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--blue-600); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.h3 { font-size: 1.25rem; }
.section { padding: 96px 0; }
.section.soft { background: var(--bg-soft); }
.section.dark { background: linear-gradient(150deg, var(--navy-900), var(--navy-700)); color: #CFDCEE; }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head .lead { color: var(--slate); margin-top: 14px; font-size: 1.05rem; }
.section.dark .section-head .lead { color: #9FB2CE; }
.section.dark h2 { color: #fff; }

.lead { font-size: 1.05rem; color: var(--slate); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px; font-weight: 600; font-size: .95rem;
  border: 2px solid transparent; transition: all .25s ease; white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: .875rem; border-radius: 8px; }
.btn-primary { background: var(--blue-600); color: #fff; }
.btn-primary:hover { background: var(--blue-500); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(30, 110, 247, .35); }
.btn-light { background: #fff; color: var(--navy-900); }
.btn-light:hover { background: var(--blue-100); color: var(--navy-900); transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; }
.btn-outline { border-color: var(--blue-600); color: var(--blue-600); background: transparent; }
.btn-outline:hover { background: var(--blue-600); color: #fff; }
.btn-block { width: 100%; }
.btn i { font-style: normal; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: transparent; transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 22, 40, .82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom-color: rgba(255,255,255,.08);
  box-shadow: 0 6px 24px rgba(2,8,20,.25);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 40px; height: 40px; flex: none; border-radius: 10px; background: linear-gradient(135deg, var(--blue-600), var(--sky)); display: grid; place-items: center; box-shadow: 0 4px 14px rgba(30,110,247,.4); }
.brand-text { color: #fff; font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; }
.brand-text strong { color: var(--blue-400); }

.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-block; padding: 10px 14px; color: rgba(255,255,255,.82);
  font-size: .92rem; font-weight: 500; border-radius: 8px;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-link.active { color: #fff; }
.nav-link.active::after { content: ""; display: block; height: 2px; width: 20px; margin: 4px auto 0; background: var(--blue-400); border-radius: 2px; }

.has-dropdown { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 270px;
  background: var(--navy-800); border: 1px solid rgba(255,255,255,.1); border-radius: 12px;
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .22s ease; box-shadow: var(--shadow-lg); z-index: 50;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block; padding: 10px 14px; color: #C7D6EC; font-size: .88rem; border-radius: 8px;
}
.dropdown a:hover { background: rgba(30,110,247,.15); color: #fff; }

.nav-cta { margin-left: 10px; }
.lang-switch { display: flex; align-items: center; gap: 6px; margin-left: 10px; padding-left: 14px; border-left: 1px solid rgba(255,255,255,.18); color: #9FB2CE; font-size: .8rem; font-weight: 600; }
.lang-current { color: #fff; }
.lang-cn { background: none; border: none; color: #9FB2CE; font-size: .8rem; font-weight: 600; padding: 2px; }
.lang-cn:hover { color: var(--blue-400); }

.nav-toggle { display: none; width: 44px; height: 44px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.15); border-radius: 10px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero (Home) ---------- */
.hero {
  position: relative; overflow: hidden; color: #E6EEFB;
  padding: calc(var(--nav-h) + 72px) 0 96px;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(30,110,247,.35), transparent 60%),
    radial-gradient(700px 420px at -10% 110%, rgba(79,195,247,.18), transparent 60%),
    linear-gradient(150deg, var(--navy-900) 0%, #0D1F3B 55%, var(--navy-800) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(30,110,247,.14); border: 1px solid rgba(79,195,247,.35);
  color: var(--sky); font-size: .8rem; font-weight: 600; letter-spacing: .04em;
  padding: 8px 16px; border-radius: 999px; margin-bottom: 24px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sky); box-shadow: 0 0 0 4px rgba(79,195,247,.18); animation: pulse 2.2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 3px rgba(79,195,247,.25);} 50% { box-shadow: 0 0 0 7px rgba(79,195,247,.06);} }

.hero h1 { color: #fff; font-size: clamp(2.2rem, 4.6vw, 3.55rem); font-weight: 800; line-height: 1.12; letter-spacing: -.03em; }
.hero h1 .grad { background: linear-gradient(92deg, var(--blue-400), var(--sky)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p.sub { color: #AEBFD9; font-size: 1.12rem; margin: 22px 0 34px; max-width: 560px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 28px; margin-top: 44px; flex-wrap: wrap; }
.hero-trust div { display: flex; align-items: center; gap: 10px; color: #9FB2CE; font-size: .85rem; }
.hero-trust .tick { width: 20px; height: 20px; border-radius: 50%; background: rgba(79,195,247,.15); color: var(--sky); display: grid; place-items: center; font-size: .7rem; }

.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; filter: drop-shadow(0 30px 60px rgba(2,8,20,.5)); }
.float-chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: rgba(14,30,54,.92); border: 1px solid rgba(79,195,247,.3);
  border-radius: 12px; padding: 10px 14px; color: #fff; font-size: .78rem; font-weight: 600;
  box-shadow: 0 12px 30px rgba(2,8,20,.4); animation: floaty 5s ease-in-out infinite;
}
.float-chip .chip-icon { width: 30px; height: 30px; border-radius: 8px; background: rgba(30,110,247,.18); display: grid; place-items: center; color: var(--sky); font-size: .9rem; flex: none; }
.float-chip small { display: block; color: #8CA3C4; font-weight: 500; font-size: .68rem; }
.fc-1 { top: 6%; left: -6%; animation-delay: .2s; }
.fc-2 { bottom: 20%; right: -4%; animation-delay: 1.4s; }
.fc-3 { bottom: -4%; left: 4%; animation-delay: 2.6s; }
@keyframes floaty { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-10px);} }

/* ---------- Stats ---------- */
.stats-band { background: var(--navy-800); border-block: 1px solid rgba(255,255,255,.07); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 44px 0; }
.stat { text-align: center; }
.stat-num { font-size: clamp(1.9rem, 3.4vw, 2.7rem); font-weight: 800; color: #fff; letter-spacing: -.02em; }
.stat-num .plus { color: var(--blue-400); }
.stat-label { color: #8CA3C4; font-size: .88rem; margin-top: 4px; }

/* ---------- Product cards ---------- */
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.product-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); border-color: #C9D9F5; }
.product-card .thumb { position: relative; background: linear-gradient(150deg, var(--navy-900), var(--navy-700)); overflow: hidden; }
.product-card .thumb img { width: 100%; height: 210px; object-fit: cover; transition: transform .45s ease; }
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .cat-tag {
  position: absolute; top: 14px; left: 14px; background: rgba(10,22,40,.72);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  color: var(--sky); font-size: .68rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; padding: 5px 10px; border-radius: 999px; border: 1px solid rgba(79,195,247,.3);
}
.product-card .body { padding: 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-card h3 { font-size: 1.12rem; }
.product-card .body p { color: var(--slate); font-size: .9rem; flex: 1; }
.product-card .specs-mini { display: flex; flex-wrap: wrap; gap: 6px; }
.product-card .specs-mini span { background: var(--bg-soft); border: 1px solid var(--line); color: var(--ink); font-size: .72rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.card-link { color: var(--blue-600); font-weight: 600; font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; }
.card-link .arrow { transition: transform .25s ease; }
.card-link:hover .arrow { transform: translateX(4px); }
.card-link:hover { color: var(--blue-500); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ---------- Feature / value cards ---------- */
.value-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #C9D9F5; }
.value-card .v-icon {
  width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(30,110,247,.12), rgba(79,195,247,.16));
  color: var(--blue-600); font-size: 1.5rem;
}
.value-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.value-card p { color: var(--slate); font-size: .9rem; }

/* dark variant */
.dark .value-card, .section.dark .value-card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1); }
.dark .value-card h3, .section.dark .value-card h3 { color: #fff; }
.dark .value-card p, .section.dark .value-card p { color: #9FB2CE; }
.dark .value-card .v-icon { background: rgba(30,110,247,.25); color: var(--sky); }

/* ---------- Logos marquee ---------- */
.logos-wrap { overflow: hidden; position: relative; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.logos-track { display: flex; gap: 56px; align-items: center; width: max-content; animation: marquee 26s linear infinite; }
.logos-wrap:hover .logos-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0);} to { transform: translateX(-50%);} }
.partner-logo { color: #9FB2CE; font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; display: flex; align-items: center; gap: 8px; white-space: nowrap; opacity: .75; transition: opacity .2s; }
.partner-logo:hover { opacity: 1; color: #fff; }
.partner-logo .picon { width: 30px; height: 30px; border-radius: 8px; background: rgba(79,195,247,.15); display: grid; place-items: center; font-size: .85rem; color: var(--sky); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  position: relative; color: #E6EEFB; padding: calc(var(--nav-h) + 64px) 0 76px; overflow: hidden;
  background:
    radial-gradient(700px 360px at 88% -20%, rgba(30,110,247,.32), transparent 60%),
    linear-gradient(150deg, var(--navy-900), var(--navy-700));
}
.page-hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 52px 52px; pointer-events: none; }
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.8rem); margin: 14px 0 16px; max-width: 800px; }
.page-hero .sub { color: #AEBFD9; font-size: 1.05rem; max-width: 680px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: .8rem; color: #8CA3C4; font-weight: 500; }
.breadcrumb a { color: #8CA3C4; }
.breadcrumb a:hover { color: var(--blue-400); }
.breadcrumb .sep { opacity: .5; }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.filter-btn {
  background: #fff; border: 1px solid var(--line); color: var(--ink);
  padding: 9px 18px; border-radius: 999px; font-size: .85rem; font-weight: 600;
  transition: all .2s ease;
}
.filter-btn:hover { border-color: var(--blue-600); color: var(--blue-600); }
.filter-btn.is-active { background: var(--blue-600); border-color: var(--blue-600); color: #fff; box-shadow: 0 8px 20px rgba(30,110,247,.3); }
.pcard-wrap { transition: opacity .3s ease, transform .3s ease; }
.pcard-wrap.hide { display: none; }

/* ---------- Split / feature sections ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .img-frame {
  background: linear-gradient(150deg, var(--navy-900), var(--navy-700));
  border-radius: 20px; padding: 30px; box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.split .img-frame::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 40px 40px; }
.split .img-frame img { position: relative; border-radius: 12px; }
.check-list li { display: flex; gap: 12px; padding: 9px 0; color: var(--slate); font-size: .95rem; align-items: flex-start; }
.check-list .ck { flex: none; width: 22px; height: 22px; border-radius: 50%; background: rgba(30,110,247,.12); color: var(--blue-600); display: grid; place-items: center; font-size: .72rem; font-weight: 800; margin-top: 2px; }

/* ---------- Spec table ---------- */
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); font-size: .9rem; }
.spec-table thead th { background: var(--navy-800); color: #fff; text-align: left; padding: 14px 18px; font-size: .82rem; letter-spacing: .04em; }
.spec-table tbody td { padding: 13px 18px; border-bottom: 1px solid var(--line); color: var(--slate); }
.spec-table tbody td:first-child { color: var(--ink); font-weight: 600; }
.spec-table tbody tr:nth-child(even) { background: var(--bg-soft); }
.spec-table tbody tr:hover { background: var(--blue-100); }
.table-scroll { overflow-x: auto; border-radius: 14px; }

/* ---------- Solutions / process ---------- */
.step-card { text-align: center; padding: 30px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); position: relative; transition: transform .3s ease, box-shadow .3s ease; }
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.step-num { width: 46px; height: 46px; margin: 0 auto 16px; border-radius: 12px; background: linear-gradient(135deg, var(--blue-600), var(--sky)); color: #fff; font-weight: 800; font-size: 1.1rem; display: grid; place-items: center; box-shadow: 0 8px 20px rgba(30,110,247,.35); }
.step-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.step-card p { color: var(--slate); font-size: .87rem; }

.solution-tile { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 30px; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.solution-tile:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #C9D9F5; }
.solution-tile .s-icon { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg, rgba(30,110,247,.12), rgba(79,195,247,.18)); color: var(--blue-600); display: grid; place-items: center; font-size: 1.55rem; margin-bottom: 18px; }
.solution-tile h3 { font-size: 1.12rem; margin-bottom: 10px; }
.solution-tile p { color: var(--slate); font-size: .9rem; margin-bottom: 16px; }
.solution-tile .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.solution-tile .tags span { font-size: .7rem; background: var(--bg-soft); border: 1px solid var(--line); color: var(--slate); padding: 4px 9px; border-radius: 999px; font-weight: 600; }

/* ---------- About ---------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 10px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--blue-600), var(--blue-100)); }
.tl-item { position: relative; padding: 0 0 38px 24px; }
.tl-item::before { content: ""; position: absolute; left: -30px; top: 5px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--blue-600); box-shadow: 0 0 0 5px rgba(30,110,247,.12); }
.tl-year { color: var(--blue-600); font-weight: 800; font-size: .95rem; letter-spacing: .04em; }
.tl-item h3 { font-size: 1.1rem; margin: 4px 0 6px; }
.tl-item p { color: var(--slate); font-size: .92rem; }

.cert-card { text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 18px; transition: transform .25s ease, box-shadow .25s ease; }
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.cert-card .cert-icon { width: 54px; height: 54px; margin: 0 auto 12px; border-radius: 50%; background: var(--bg-soft); border: 1px solid var(--line); display: grid; place-items: center; color: var(--blue-600); font-size: 1.35rem; font-weight: 800; }
.cert-card h4 { font-size: .95rem; }
.cert-card p { color: var(--slate); font-size: .78rem; margin-top: 4px; }

.team-card { text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 20px; transition: transform .25s ease, box-shadow .25s ease; }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.avatar { width: 84px; height: 84px; margin: 0 auto 16px; border-radius: 50%; background: linear-gradient(135deg, var(--navy-700), var(--blue-600)); color: #fff; font-weight: 800; font-size: 1.6rem; display: grid; place-items: center; box-shadow: 0 10px 24px rgba(30,110,247,.3); }
.team-card h4 { font-size: 1.02rem; }
.team-card .role { color: var(--blue-600); font-size: .8rem; font-weight: 600; margin: 2px 0 8px; }
.team-card p { color: var(--slate); font-size: .82rem; }

/* ---------- Blog ---------- */
.blog-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .3s ease, box-shadow .3s ease; }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.blog-card .thumb { height: 190px; display: grid; place-items: center; background: linear-gradient(140deg, var(--navy-800), var(--navy-600)); color: var(--blue-400); font-size: 2.4rem; overflow: hidden; }
.blog-card .thumb svg { width: 100%; height: 100%; object-fit: cover; }
.blog-card .body { padding: 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.blog-meta { display: flex; gap: 14px; color: var(--slate); font-size: .76rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.blog-meta .cat { color: var(--blue-600); }
.blog-card h3 { font-size: 1.06rem; line-height: 1.4; flex: 1; }
.blog-card .body p { color: var(--slate); font-size: .88rem; }
.prose { max-width: 780px; }
.prose h2 { font-size: 1.5rem; margin: 44px 0 16px; }
.prose h3 { font-size: 1.2rem; margin: 32px 0 12px; }
.prose p { color: #3D4C63; margin-bottom: 18px; font-size: 1.02rem; }
.prose ul { list-style: none; margin-bottom: 20px; }
.prose ul li { position: relative; padding-left: 22px; color: #3D4C63; margin-bottom: 10px; }
.prose ul li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 8px; height: 8px; border-radius: 2px; background: var(--blue-600); transform: rotate(45deg); }
.prose .note { background: var(--blue-100); border-left: 4px solid var(--blue-600); border-radius: 8px; padding: 18px 22px; margin: 24px 0; color: #233A5E; font-size: .95rem; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 28px; margin-bottom: 12px; }
.article-head h1 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); }
.author-row { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.author-row .a-avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--navy-700), var(--blue-600)); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: .95rem; }
.author-row .a-name { font-weight: 700; font-size: .9rem; }
.author-row .a-date { color: var(--slate); font-size: .8rem; }

/* ---------- Forms ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 38px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: .86rem; font-weight: 600; color: var(--ink); }
.form-group label .req { color: var(--red); }
.form-control {
  width: 100%; padding: 12px 15px; border: 1.5px solid var(--line); border-radius: 10px;
  background: #FBFCFE; color: var(--ink); font-size: .94rem; transition: border-color .2s ease, box-shadow .2s ease;
}
.form-control:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 4px rgba(30,110,247,.12); background: #fff; }
.form-control.is-invalid { border-color: var(--red); background: #FFF7F7; }
.form-control.is-invalid:focus { box-shadow: 0 0 0 4px rgba(220,38,38,.1); }
textarea.form-control { min-height: 130px; resize: vertical; }
.error-msg { display: none; color: var(--red); font-size: .78rem; font-weight: 600; }
.error-msg.show { display: block; }
.form-success { display: none; text-align: center; padding: 40px 20px; }
.form-success.show { display: block; }
.form-success .ok-icon { width: 72px; height: 72px; margin: 0 auto 18px; border-radius: 50%; background: rgba(22,163,74,.12); color: var(--green); display: grid; place-items: center; font-size: 2rem; }
.form-success h3 { margin-bottom: 8px; }
.form-success p { color: var(--slate); font-size: .93rem; max-width: 420px; margin: 0 auto 22px; }

/* ---------- Contact info cards ---------- */
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; display: flex; gap: 16px; align-items: flex-start; transition: transform .25s ease, box-shadow .25s ease; }
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.info-card .i-icon { flex: none; width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, rgba(30,110,247,.12), rgba(79,195,247,.18)); color: var(--blue-600); display: grid; place-items: center; font-size: 1.2rem; }
.info-card h3 { font-size: .98rem; margin-bottom: 5px; }
.info-card p, .info-card a { color: var(--slate); font-size: .88rem; line-height: 1.6; }
.map-frame { background: linear-gradient(150deg, var(--navy-800), var(--navy-600)); border-radius: var(--radius); min-height: 320px; display: grid; place-items: center; color: #9FB2CE; text-align: center; padding: 30px; position: relative; overflow: hidden; }
.map-frame::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 36px 36px; }
.map-frame .pin { width: 64px; height: 64px; border-radius: 50%; background: rgba(30,110,247,.25); border: 1px solid rgba(79,195,247,.4); display: grid; place-items: center; color: var(--sky); font-size: 1.7rem; margin: 0 auto 14px; animation: pulse 2.4s infinite; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--blue-600), #0D5FD8); border-radius: 22px; padding: 56px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; color: #fff; position: relative; overflow: hidden; box-shadow: 0 24px 60px rgba(30,110,247,.35); }
.cta-band::after { content: ""; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,255,255,.08); }
.cta-band h2 { color: #fff; font-size: clamp(1.4rem, 2.6vw, 2rem); margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 560px; }
.cta-band .btn-light { position: relative; z-index: 1; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #8CA3C4; padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 52px; }
.site-footer h4 { color: #fff; font-size: .95rem; margin-bottom: 18px; letter-spacing: .02em; }
.site-footer .f-blurb { font-size: .88rem; line-height: 1.7; margin: 16px 0 20px; max-width: 320px; }
.footer-col a { display: block; color: #8CA3C4; font-size: .88rem; padding: 5px 0; }
.footer-col a:hover { color: var(--blue-400); }
.social-row { display: flex; gap: 10px; }
.social-btn { width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); display: grid; place-items: center; color: #C7D6EC; transition: all .22s ease; }
.social-btn:hover { background: var(--blue-600); border-color: var(--blue-600); color: #fff; transform: translateY(-3px); }
.footer-contact li { display: flex; gap: 10px; font-size: .85rem; padding: 5px 0; align-items: flex-start; }
.footer-contact .fc-icon { color: var(--blue-400); flex: none; margin-top: 2px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .8rem; }
.footer-bottom a { color: #8CA3C4; }
.footer-bottom a:hover { color: var(--blue-400); }

/* ---------- Back to top ---------- */
#backTop { position: fixed; right: 26px; bottom: 26px; z-index: 90; width: 46px; height: 46px; border-radius: 12px; background: var(--blue-600); color: #fff; border: none; font-size: 1.1rem; display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s ease; box-shadow: 0 12px 28px rgba(30,110,247,.4); }
#backTop.show { opacity: 1; visibility: visible; transform: translateY(0); }
#backTop:hover { background: var(--blue-500); }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px); z-index: 200; background: var(--navy-800); color: #fff; border: 1px solid rgba(79,195,247,.4); padding: 14px 26px; border-radius: 12px; font-size: .9rem; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: all .3s ease; display: flex; align-items: center; gap: 10px; }
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.toast .t-icon { color: var(--sky); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; margin-inline: auto; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .fc-1 { left: 0; } .fc-2 { right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: rgba(10,22,40,.97); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
    transform: translateX(100%); transition: transform .32s ease; overflow-y: auto; padding: 24px 6%;
  }
  .site-nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 6px; }
  .nav-link { display: block; font-size: 1.02rem; padding: 13px 10px; border-bottom: 1px solid rgba(255,255,255,.06); }
  .nav-link.active::after { display: none; }
  .dropdown { position: static; opacity: 1; visibility: visible; transform: none; background: transparent; border: none; padding: 4px 0 8px 14px; box-shadow: none; min-width: 0; }
  .dropdown a { padding: 9px 10px; }
  .nav-cta, .lang-switch { margin: 14px 0 0; padding: 0; border: none; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 42px 30px; }
}

@media (max-width: 620px) {
  .section { padding: 72px 0; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--nav-h) + 52px); }
  .hero-cta .btn { flex: 1 1 auto; }
  .hero-trust { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-card { padding: 26px 20px; }
  .page-hero { padding-top: calc(var(--nav-h) + 48px); }
  .float-chip { padding: 8px 10px; font-size: .7rem; }
  .fc-1 { top: -2%; } .fc-3 { bottom: -6%; }
  .stats-band { border-block-width: 0; }
}