/* ==========================================================================
   Wanfeng Silicone — light blue design system
   ========================================================================== */

:root {
  --ink: #0c2a3d;
  --ink-2: #1d4560;
  --ink-soft: #527287;
  --muted: #7b98aa;

  --accent: #2b7cb5;
  --accent-2: #4fa8d8;
  --accent-3: #8ecdec;
  --accent-deep: #14516f;

  --sky-0: #ffffff;
  --sky-1: #f4fafd;
  --sky-2: #e8f3fa;
  --sky-3: #d8eaf6;

  --line: #d9e8f2;
  --line-soft: #e8f1f7;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 8px -2px rgba(14, 60, 90, 0.08);
  --shadow: 0 18px 44px -32px rgba(14, 60, 90, 0.55);
  --shadow-lg: 0 40px 80px -50px rgba(14, 60, 90, 0.7);

  --wrap: 1240px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: "Inter", "Helvetica Neue", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--sky-0);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 16px;
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.022em; line-height: 1.18; }
p { margin: 0; }

::selection { background: var(--accent-3); color: var(--ink); }

/* ------------------------------- layout ---------------------------------- */

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0; position: relative; }
.section.tight { padding: 68px 0; }
.section.sky { background: var(--sky-1); }
.section.sky-2 { background: linear-gradient(180deg, var(--sky-2), var(--sky-1)); }
.section.dark {
  background:
    radial-gradient(1000px 480px at 12% 0%, #17536f 0%, transparent 60%),
    radial-gradient(800px 420px at 92% 100%, #1b6488 0%, transparent 62%),
    #0b2939;
  color: #eaf6fc;
}
.section.dark .eyebrow { color: var(--accent-3); }
.section.dark p { color: rgba(233, 246, 252, 0.78); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent-2);
  border-radius: 2px;
}

.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head h2 { font-size: clamp(28px, 3.3vw, 44px); }
.section-head p { margin-top: 16px; color: var(--ink-soft); font-size: 16.5px; line-height: 1.75; }
.section.dark .section-head h2 { color: #fff; }

/* ------------------------------- buttons --------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  padding: 0 26px;
  border-radius: 100px;
  border: 1px solid transparent;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, color 0.25s, box-shadow 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: linear-gradient(135deg, #3189c0, #1c6899);
  color: #fff;
  box-shadow: 0 14px 28px -16px rgba(28, 104, 153, 0.9);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 36px -16px rgba(28, 104, 153, 0.95); }
.btn-ghost {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-deep); transform: translateY(-2px); }
.btn-light {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
}
.btn-light:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }
.btn-sm { height: 42px; padding: 0 20px; font-size: 13.5px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.25s var(--ease), color 0.2s;
}
.link-arrow svg { width: 15px; height: 15px; flex: none; }
.link-arrow:hover { gap: 14px; color: var(--accent-deep); }

/* ------------------------------- topbar ---------------------------------- */

.topbar {
  background: var(--ink);
  color: rgba(233, 246, 252, 0.82);
  font-size: 12.5px;
  letter-spacing: 0.01em;
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 40px; gap: 20px; }
.topbar-left { display: flex; align-items: center; gap: 26px; min-width: 0; }
.topbar a { display: inline-flex; align-items: center; gap: 7px; transition: color 0.2s; }
.topbar a:hover { color: #fff; }
.topbar svg { width: 13px; height: 13px; opacity: 0.75; }
.topbar-right { display: flex; align-items: center; gap: 18px; white-space: nowrap; }
.topbar .dot { width: 5px; height: 5px; border-radius: 50%; background: #5fd0a8; display: inline-block; }

/* ------------------------------- header ---------------------------------- */

.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.3s;
}
.header.stuck { box-shadow: 0 10px 30px -24px rgba(14, 60, 90, 0.5); }
.header .wrap { display: flex; align-items: center; gap: 34px; height: 74px; }

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-mark {
  height: 34px; width: auto; display: block; flex: none;
  border-radius: 0; background: none; box-shadow: none;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: 0.1em; }
.brand-sub { font-size: 9.5px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 13px;
  font-size: 14px; font-weight: 500;
  color: var(--ink-2);
  border-radius: 9px;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}
/* 非英文导航略缩小，避免长译文换行 */
html:not([lang="en"]) .nav-link { font-size: 13px; padding: 10px 10px; }
.nav-link:hover, .nav-item.active > .nav-link { color: var(--accent); background: var(--sky-2); }
.nav-link .caret { width: 9px; height: 9px; opacity: 0.5; }
.nav-drop {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 258px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.22s, transform 0.22s, visibility 0.22s;
}
.nav-item:hover .nav-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-drop a {
  display: block;
  padding: 9px 12px;
  font-size: 13.5px;
  color: var(--ink-2);
  border-radius: 8px;
  transition: background 0.18s, color 0.18s, padding-left 0.18s;
}
.nav-drop a:hover { background: var(--sky-2); color: var(--accent); padding-left: 16px; }

.header-cta { display: flex; align-items: center; gap: 10px; margin-left: 8px; }
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.nav-toggle span {
  display: block; width: 18px; height: 1.6px; background: var(--ink);
  position: relative;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 1.6px; background: var(--ink);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* -------------------------------- hero ----------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 78% 8%, #dcefFB 0%, transparent 62%),
    radial-gradient(700px 460px at 6% 92%, #e9f5fc 0%, transparent 60%),
    linear-gradient(180deg, #fbfdff 0%, #f3fafd 100%);
  border-bottom: 1px solid var(--line-soft);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(43, 124, 181, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 124, 181, 0.055) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 60px;
  align-items: center;
  padding: 88px 0 122px;
  min-height: 600px;
}
.hero-slide { display: none; }
.hero-slide.active { display: block; animation: fadeUp 0.7s var(--ease) both; }
.hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -0.035em;
  line-height: 1.06;
  max-width: 15em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(115deg, #2b7cb5, #63b6dd 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 34em;
}
.hero-badge {
  display: flex;
  width: max-content;
  max-width: 100%;
  align-items: center; gap: 8px;
  margin-bottom: 22px;
  padding: 7px 14px 7px 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--accent-deep);
  box-shadow: var(--shadow-sm);
}
.hero-badge i {
  width: 6px; height: 6px; border-radius: 50%;
  background: #35c08a; box-shadow: 0 0 0 3px rgba(53, 192, 138, 0.16);
}
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.hero-slide .hero-badge { margin: 28px 0 0; }
.hero-dots { display: flex; gap: 9px; margin-top: 34px; }
.hero-dots button {
  width: 26px; height: 3px; border-radius: 3px; border: 0;
  background: var(--sky-3); cursor: pointer; padding: 0;
  transition: width 0.3s var(--ease), background 0.3s;
}
.hero-dots button.on { width: 46px; background: var(--accent); }

.hero-visual { position: relative; height: 460px; }
.hero-ring {
  position: absolute; inset: 8% 6% 8% 10%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 30%, #ffffff 0%, #eaf5fc 42%, #d5eaf7 100%);
  box-shadow:
    inset 0 0 60px rgba(255, 255, 255, 0.9),
    0 50px 90px -50px rgba(20, 81, 111, 0.65);
}
.hero-ring::before {
  content: "";
  position: absolute; inset: 21%;
  border-radius: 50%;
  border: 1px solid rgba(43, 124, 181, 0.13);
  background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, 0.9), transparent 62%);
}
.hero-ring::after {
  content: "";
  position: absolute; inset: 11%;
  border-radius: 50%;
  border: 1px dashed rgba(43, 124, 181, 0.28);
}
.hero-ring svg { position: absolute; inset: 0; margin: auto; width: 62%; height: 62%; opacity: 0.98; z-index: 2; }
.hero-chip {
  position: absolute;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  animation: float 7s ease-in-out infinite;
}
.hero-chip b { display: block; font-size: 19px; letter-spacing: -0.02em; color: var(--ink); }
.hero-chip span { font-size: 11px; color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; }
.hero-chip.c1 { top: 6%; left: -2%; }
.hero-chip.c2 { bottom: 14%; right: 1%; animation-delay: 1.4s; }
.hero-chip.c3 { bottom: 4%; left: 6%; animation-delay: 2.6s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

/* ------------------------------- stats ----------------------------------- */

.stats-band {
  position: relative;
  margin-top: -52px;
  z-index: 5;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.stat {
  padding: 32px 28px 34px;
  border-right: 1px solid var(--line-soft);
  transition: background 0.3s;
}
.stat:last-child { border-right: 0; }
.stat:hover { background: var(--sky-1); }
.stat-val {
  display: flex; align-items: baseline; gap: 6px;
  font-size: 40px; font-weight: 700; letter-spacing: -0.04em;
  color: var(--accent-deep);
  line-height: 1;
  flex-wrap: wrap;
}
.stat-val.txt { font-size: 24px; letter-spacing: -0.02em; line-height: 1.15; }
.stat-val small { font-size: 15px; font-weight: 600; letter-spacing: 0; color: var(--accent-2); }
.stat h4 { margin-top: 16px; font-size: 14.5px; }
.stat p { margin-top: 9px; font-size: 13px; color: var(--ink-soft); line-height: 1.6; }

/* ------------------------------- concept --------------------------------- */

.concept-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 64px; align-items: start; }
.concept-copy h2 { font-size: clamp(28px, 3.2vw, 42px); }
.concept-copy p { margin-top: 20px; color: var(--ink-soft); font-size: 16px; line-height: 1.8; }
.concept-note {
  margin-top: 32px;
  padding: 20px 22px;
  border-left: 2px solid var(--accent-2);
  background: var(--sky-1);
  border-radius: 0 12px 12px 0;
  font-size: 14px;
  color: var(--ink-2);
}
.concept-note b { display: block; margin-bottom: 4px; }

.concept-list { display: grid; gap: 2px; }
.concept-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--line);
  transition: padding-left 0.3s var(--ease), background 0.3s;
}
.concept-item:first-child { border-top: 1px solid var(--line); }
.concept-item:hover { padding-left: 14px; background: linear-gradient(90deg, var(--sky-1), transparent 70%); }
.concept-num {
  font-size: 13px; font-weight: 700; color: var(--accent-2);
  letter-spacing: 0.06em; padding-top: 4px;
}
.concept-item h4 { font-size: 17px; }
.concept-item p { margin-top: 7px; font-size: 14px; color: var(--ink-soft); line-height: 1.7; }

/* ------------------------------- workflow -------------------------------- */

.flow-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.flow-left { padding: 48px; }
.flow-left h3 { font-size: clamp(24px, 2.4vw, 32px); }
.flow-left > p { margin-top: 16px; color: var(--ink-soft); font-size: 15px; line-height: 1.75; }
.flow-steps { margin-top: 30px; display: grid; gap: 14px; }
.flow-steps li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14.5px; color: var(--ink-2);
}
.flow-steps li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px; margin-top: 2px;
  border-radius: 50%;
  background: var(--sky-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232b7cb5' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}
.flow-right {
  background:
    radial-gradient(600px 400px at 80% 10%, rgba(255,255,255,.14), transparent 60%),
    linear-gradient(150deg, #1b6086, #0d3b53);
  color: #eaf6fc;
  padding: 48px;
  display: flex; flex-direction: column; justify-content: center;
  position: relative;
  overflow: hidden;
}
.flow-right::before {
  content: "";
  position: absolute; right: -80px; top: -80px;
  width: 320px; height: 320px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.flow-right h3 { color: #fff; font-size: 26px; }
.flow-right p { margin-top: 14px; color: rgba(233, 246, 252, 0.76); font-size: 14.5px; line-height: 1.7; }
.flow-right .btn { margin-top: 30px; align-self: flex-start; }

/* ----------------------------- categories -------------------------------- */

.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cat-card {
  position: relative;
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.35s;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent-3); }
.cat-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, #eef7fd, #dcecf7);
  overflow: hidden;
}
.cat-media img, .cat-media svg { width: 100%; height: 100%; object-fit: cover; }
.cat-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(12, 42, 61, 0.34));
  opacity: 0; transition: opacity 0.35s;
}
.cat-card:hover .cat-media::after { opacity: 1; }
.cat-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.cat-body h3 { font-size: 18.5px; }
.cat-body p { margin-top: 10px; font-size: 13.5px; color: var(--ink-soft); line-height: 1.7; flex: 1; }
.cat-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.cat-tags span {
  font-size: 11.5px; color: var(--ink-2);
  background: var(--sky-1);
  border: 1px solid var(--line-soft);
  border-radius: 100px;
  padding: 3px 10px;
}
.cat-card .link-arrow { margin-top: auto; padding-top: 18px; }

/* ---------------------------- brand strip -------------------------------- */

.brand-strip { margin-top: 56px; text-align: center; }
.brand-strip h4 {
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); font-weight: 700;
}
.brand-logos {
  margin-top: 26px;
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 14px;
}
.brand-logos span {
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em;
  color: #9db6c6;
  padding: 16px 8px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: #fff;
  transition: color 0.3s, border-color 0.3s;
}
.brand-logos span:hover { color: var(--accent); border-color: var(--accent-3); }

/* ------------------------------- buyers ---------------------------------- */

.buyer-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.buyer-card {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.buyer-card:hover { border-color: var(--accent-3); box-shadow: var(--shadow); }
.buyer-icon {
  width: 46px; height: 46px; border-radius: 13px;
  background: var(--sky-2);
  display: grid; place-items: center;
  color: var(--accent);
  margin-bottom: 20px;
}
.buyer-icon svg { width: 22px; height: 22px; }
.buyer-card h4 { font-size: 17.5px; }
.buyer-card ul { margin-top: 16px; display: grid; gap: 9px; }
.buyer-card li {
  position: relative; padding-left: 18px;
  font-size: 13.5px; color: var(--ink-soft); line-height: 1.6;
}
.buyer-card li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent-3);
}

/* --------------------------------- why ----------------------------------- */

.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.why-item {
  background: #fff;
  padding: 34px 28px;
  transition: background 0.3s;
}
.why-item:hover { background: var(--sky-1); }
.why-item .buyer-icon { margin-bottom: 18px; background: #fff; border: 1px solid var(--line); }
.why-item h4 { font-size: 16.5px; }
.why-item p { margin-top: 10px; font-size: 13.5px; color: var(--ink-soft); line-height: 1.7; }

/* -------------------------------- video ---------------------------------- */

.video-wrap {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 0;
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
}
.video-stage {
  position: relative;
  min-height: 380px;
  background:
    radial-gradient(420px 260px at 50% 50%, rgba(79, 168, 216, 0.35), transparent 70%),
    linear-gradient(150deg, #12435e, #061f2d);
  display: grid; place-items: center;
}
.video-stage video, .video-stage img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.play-btn {
  position: relative;
  width: 76px; height: 76px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  display: grid; place-items: center;
  cursor: pointer;
  transition: transform 0.3s, background 0.3s;
}
.play-btn:hover { transform: scale(1.08); background: rgba(255, 255, 255, 0.2); }
.play-btn::after {
  content: "";
  width: 0; height: 0;
  border-left: 17px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 5px;
}
.video-side { padding: 46px; display: flex; flex-direction: column; justify-content: center; }
.video-side h3 { color: #fff; font-size: 27px; }
.video-side p { margin-top: 14px; color: rgba(233, 246, 252, 0.75); font-size: 14.5px; line-height: 1.75; }
.video-side ul { margin-top: 26px; display: grid; gap: 11px; }
.video-side li { display: flex; gap: 10px; font-size: 13.5px; color: rgba(233, 246, 252, 0.9); }
.video-side li::before { content: "—"; color: var(--accent-3); }
.video-side .btn { margin-top: 30px; align-self: flex-start; }

/* ------------------------------- process --------------------------------- */

.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.process-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px 30px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.process-step:hover { transform: translateY(-4px); border-color: var(--accent-3); box-shadow: var(--shadow); }
.process-step .n {
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--accent-2);
}
.process-step h4 { margin-top: 14px; font-size: 16.5px; }
.process-step p { margin-top: 8px; font-size: 13px; color: var(--ink-soft); line-height: 1.65; }

/* -------------------------------- certs ---------------------------------- */

.cert-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.cert {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 18px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}
.cert:hover { transform: translateY(-4px); border-color: var(--accent-3); }
.cert-code {
  font-size: 22px; font-weight: 800; letter-spacing: -0.02em; color: var(--accent-deep);
}
.cert-name { margin-top: 8px; font-size: 11.5px; font-weight: 600; color: var(--ink-2); }
.cert-text { margin-top: 4px; font-size: 11px; color: var(--muted); line-height: 1.5; }

/* ---------------------------- custom products ---------------------------- */

.custom-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.custom-group {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 26px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s, background 0.3s, padding-left 0.3s;
}
.custom-group:hover { border-color: var(--accent-3); background: var(--sky-1); padding-left: 34px; }
.custom-group h4 { font-size: 15.5px; }
.custom-group span { font-size: 12px; color: var(--muted); }

.customer-logos {
  margin-top: 54px;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
}
.customer-logos div {
  padding: 22px 10px;
  text-align: center;
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  color: #a3bcca;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: color 0.3s, border-color 0.3s;
}
.customer-logos div:hover { color: var(--accent); border-color: var(--accent-3); }

/* ---------------------------------- faq ---------------------------------- */

.faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 24px 4px;
  background: none; border: 0; cursor: pointer;
  text-align: left;
  font-size: 16px; font-weight: 550; color: var(--ink);
  transition: color 0.2s;
}
.faq-q:hover { color: var(--accent); }
.faq-ico {
  flex: none;
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--line);
  display: grid; place-items: center;
  position: relative;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}
.faq-ico::before, .faq-ico::after {
  content: ""; position: absolute; background: var(--accent);
  transition: transform 0.3s, opacity 0.3s;
}
.faq-ico::before { width: 11px; height: 1.6px; }
.faq-ico::after { width: 1.6px; height: 11px; }
.faq-item.open .faq-ico { background: var(--accent); border-color: var(--accent); transform: rotate(90deg); }
.faq-item.open .faq-ico::before, .faq-item.open .faq-ico::after { background: #fff; }
.faq-item.open .faq-ico::after { opacity: 0; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s var(--ease), opacity 0.3s;
  opacity: 0;
}
.faq-item.open .faq-a { opacity: 1; }
.faq-a p { padding: 0 60px 26px 4px; color: var(--ink-soft); font-size: 14.5px; line-height: 1.8; }

/* --------------------------------- news ---------------------------------- */

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.35s;
}
.post-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--accent-3); }
.post-media { aspect-ratio: 16 / 10; background: var(--sky-2); overflow: hidden; }
.post-media img, .post-media svg { width: 100%; height: 100%; object-fit: cover; }
.post-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.post-meta { display: flex; align-items: center; gap: 10px; font-size: 11.5px; color: var(--muted); letter-spacing: 0.02em; }
.post-meta .tag {
  color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
}
.post-card h3 { margin-top: 12px; font-size: 16.5px; line-height: 1.4; }
.post-card p { margin-top: 10px; font-size: 13.5px; color: var(--ink-soft); line-height: 1.65; flex: 1; }
.post-card .link-arrow { margin-top: auto; padding-top: 18px; font-size: 13px; }

/* ------------------------------- cta band -------------------------------- */

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 56px;
  background:
    radial-gradient(700px 380px at 88% -10%, rgba(142, 205, 236, 0.35), transparent 62%),
    linear-gradient(135deg, #174f6d, #0a2b3d);
  color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  flex-wrap: wrap;
}
.cta-band::before {
  content: "";
  position: absolute; left: -60px; bottom: -120px;
  width: 340px; height: 340px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.13);
}
.cta-band h2 { font-size: clamp(24px, 2.6vw, 34px); max-width: 20em; }
.cta-band p { margin-top: 12px; color: rgba(233, 246, 252, 0.75); font-size: 14.5px; max-width: 40em; }
.cta-band .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ------------------------------- subscribe ------------------------------- */

.sub-band {
  background: var(--sky-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 52px 0;
}
.sub-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.sub-inner h3 { font-size: 24px; }
.sub-inner p { margin-top: 8px; font-size: 14px; color: var(--ink-soft); }
.sub-form { display: flex; gap: 10px; flex: 1; max-width: 480px; }
.sub-form input {
  flex: 1;
  height: 50px;
  padding: 0 20px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.sub-form input:focus { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(79, 168, 216, 0.14); }

/* -------------------------------- footer --------------------------------- */

.footer { background: #08202e; color: rgba(226, 241, 249, 0.72); padding: 74px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 56px;
}
.footer .brand-name { color: #fff; }
.footer .brand-sub { color: rgba(226, 241, 249, 0.5); }
.footer-about p { margin-top: 20px; font-size: 13.5px; line-height: 1.8; color: rgba(226, 241, 249, 0.62); max-width: 30em; }
.footer-contact { margin-top: 22px; display: grid; gap: 11px; }
.footer-contact a, .footer-contact span {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13.5px; color: rgba(226, 241, 249, 0.78);
  transition: color 0.2s;
}
.footer-contact a:hover { color: #fff; }
.footer-contact svg { width: 15px; height: 15px; flex: none; margin-top: 3px; opacity: 0.6; }
.footer h5 {
  font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase;
  color: #fff; margin: 0 0 20px; font-weight: 700;
}
.footer-links { display: grid; gap: 11px; }
.footer-links a { font-size: 13.5px; color: rgba(226, 241, 249, 0.66); transition: color 0.2s, transform 0.2s; }
.footer-links a:hover { color: #fff; }
.footer-socials { display: flex; gap: 9px; margin-top: 20px; }
.footer-socials a {
  width: 34px; height: 34px; border-radius: 9px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: grid; place-items: center;
  color: rgba(226, 241, 249, 0.7);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.footer-socials a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.footer-socials svg { width: 15px; height: 15px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  font-size: 12.5px; color: rgba(226, 241, 249, 0.5);
  flex-wrap: wrap;
}
.footer-bottom a:hover { color: #fff; }

/* ------------------------------ page bits -------------------------------- */

.page-hero {
  position: relative;
  padding: 78px 0 66px;
  background:
    radial-gradient(760px 420px at 82% -20%, #d8ecf9, transparent 62%),
    linear-gradient(180deg, #fbfdff, #f2f9fd);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(43, 124, 181, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 124, 181, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(100deg, #000, transparent 62%);
}
.page-hero .wrap { position: relative; }
.page-hero.slim { padding: 24px 0 22px; }
.page-hero.slim::before { display: none; }
.section.detail-top { padding-top: 52px; }
.page-hero h1 { font-size: clamp(30px, 3.9vw, 50px); max-width: 22em; margin-top: 4px; }
.page-hero p { margin-top: 18px; font-size: 16px; color: var(--ink-soft); max-width: 44em; line-height: 1.75; }
.crumbs {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--muted); margin-bottom: 20px;
}
.crumbs a:hover { color: var(--accent); }
.crumbs i { font-style: normal; opacity: 0.5; }

/* ------------------------------ product list ----------------------------- */

.filter-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  margin-bottom: 34px; flex-wrap: wrap;
}
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab {
  height: 40px; padding: 0 18px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13.5px; font-weight: 500; color: var(--ink-2);
  cursor: pointer;
  transition: all 0.25s;
}
.tab:hover { border-color: var(--accent-3); color: var(--accent); }
.tab.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.count-note { font-size: 13px; color: var(--muted); }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.35s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--accent-3); }
.product-media { position: relative; aspect-ratio: 1 / 1; background: var(--sky-1); overflow: hidden; }
.product-media img, .product-media svg { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.product-card:hover .product-media img, .product-card:hover .product-media svg { transform: scale(1.05); }
.product-flag {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 10px; border-radius: 100px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); backdrop-filter: blur(4px);
}
.product-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.product-sku { font-size: 11px; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
.product-body h3 { margin-top: 7px; font-size: 15.5px; line-height: 1.4; }
.product-body .meta { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }
.product-body .meta span {
  font-size: 11px; color: var(--ink-2); background: var(--sky-1);
  border: 1px solid var(--line-soft); border-radius: 5px; padding: 2px 8px;
}
.product-body .link-arrow { margin-top: auto; padding-top: 18px; font-size: 12.5px; }

/* ---------------------------- product detail ----------------------------- */

.detail-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: start; }
.detail-media {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--sky-1);
  overflow: hidden;
}
.detail-media img, .detail-media svg { width: 100%; height: 100%; object-fit: cover; }
.detail-info h1 { font-size: clamp(26px, 3vw, 38px); }
.detail-info .sku { font-size: 12px; letter-spacing: 0.1em; color: var(--muted); text-transform: uppercase; }
.detail-info .summary { margin-top: 18px; font-size: 15.5px; color: var(--ink-soft); line-height: 1.8; }
.spec-table { margin-top: 28px; border-top: 1px solid var(--line); }
.spec-row {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px;
  padding: 13px 0; border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
}
.spec-row dt { color: var(--muted); }
.spec-row dd { margin: 0; color: var(--ink-2); font-weight: 500; }
.feature-list { margin-top: 26px; display: grid; gap: 10px; }
.feature-list li { display: flex; gap: 10px; font-size: 14px; color: var(--ink-2); }
.feature-list li::before {
  content: ""; flex: none; width: 16px; height: 16px; margin-top: 3px; border-radius: 50%;
  background: var(--sky-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232b7cb5' stroke-width='3.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/10px no-repeat;
}
.detail-actions { margin-top: 34px; display: flex; gap: 12px; flex-wrap: wrap; }

/* -------------------------------- article -------------------------------- */

.article-wrap { display: grid; grid-template-columns: 0.72fr 0.28fr; gap: 56px; align-items: start; }
.article-body { max-width: 760px; }
.article-body h2 { margin-top: 34px; font-size: 21px; }
.article-body p { margin-top: 18px; font-size: 15.5px; line-height: 1.85; color: var(--ink-2); }
.article-body .cover {
  aspect-ratio: 16/9; border-radius: var(--radius); overflow: hidden; margin-bottom: 34px;
  border: 1px solid var(--line);
}
.article-body .cover img, .article-body .cover svg { width: 100%; height: 100%; object-fit: cover; }
.article-side { position: sticky; top: 100px; }
.side-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; background: var(--sky-1);
}
.side-card h4 { font-size: 14px; letter-spacing: 0.04em; }
.side-card ul { margin-top: 16px; display: grid; gap: 12px; }
.side-card li a { font-size: 13.5px; color: var(--ink-2); line-height: 1.5; display: block; }
.side-card li a:hover { color: var(--accent); }
.side-card .btn { margin-top: 22px; width: 100%; }

/* -------------------------------- contact -------------------------------- */

.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: start; }
.contact-cards { display: grid; gap: 14px; margin-top: 30px; }
.contact-card {
  display: flex; gap: 16px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s;
}
.contact-card:hover { border-color: var(--accent-3); }
.contact-card .buyer-icon { margin: 0; flex: none; width: 42px; height: 42px; }
.contact-card h5 { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.contact-card p, .contact-card a { margin-top: 5px; font-size: 14.5px; color: var(--ink); line-height: 1.55; }
.contact-card a:hover { color: var(--accent); }

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.form-card h3 { font-size: 22px; }
.form-card > p { margin-top: 8px; font-size: 13.5px; color: var(--ink-soft); }
.form-grid { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--ink-2); letter-spacing: 0.02em; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--sky-1);
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 128px; line-height: 1.6; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent-2); background: #fff; box-shadow: 0 0 0 4px rgba(79, 168, 216, 0.13);
}
.form-foot { margin-top: 22px; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.form-foot small { font-size: 12px; color: var(--muted); }
.form-msg { margin-top: 16px; font-size: 13.5px; padding: 12px 16px; border-radius: 10px; display: none; }
.form-msg.ok { display: block; background: #ecf8f2; color: #15795a; border: 1px solid #bfe8d8; }
.form-msg.err { display: block; background: #fdf0f0; color: #a63a3a; border: 1px solid #f3d0d0; }

/* ------------------------------ utilities -------------------------------- */

.reveal { opacity: 1; }
html.anim .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.75s var(--ease), transform 0.75s var(--ease); }
html.anim .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html.anim .reveal { opacity: 1; transform: none; transition: none; } }

.empty {
  padding: 60px 20px; text-align: center; color: var(--muted); font-size: 14px;
  border: 1px dashed var(--line); border-radius: var(--radius);
}

.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 80;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--accent);
  display: grid; place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all 0.3s;
}
.to-top.on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.wa-float {
  position: fixed; right: 26px; bottom: 84px; z-index: 80;
  width: 46px; height: 46px; border-radius: 50%;
  background: #25d366; color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 12px 24px -12px rgba(37, 211, 102, 0.9);
  transition: transform 0.25s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 22px; height: 22px; }

.mobile-drawer {
  position: fixed; inset: 0; z-index: 120;
  background: rgba(8, 32, 46, 0.45);
  backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s;
}
.mobile-drawer.on { opacity: 1; visibility: visible; }
.drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(360px, 88vw);
  background: #fff;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
}
.mobile-drawer.on .drawer-panel { transform: none; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.drawer-close {
  width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; font-size: 18px; color: var(--ink);
}
.drawer-nav { display: grid; gap: 2px; }
.drawer-nav a {
  display: block; padding: 12px 10px; font-size: 14.5px; border-radius: 9px;
  color: var(--ink-2);
}
.drawer-nav a:hover { background: var(--sky-1); color: var(--accent); }
.drawer-nav .sub { padding-left: 22px; font-size: 13px; color: var(--ink-soft); }
.drawer-foot { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); display: grid; gap: 10px; font-size: 13.5px; }

/* ------------------------------ responsive ------------------------------- */

@media (max-width: 1160px) {
  .nav { display: none; }
  .header-cta .btn-ghost { display: none; }
  .nav-toggle { display: grid; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; row-gap: 40px; }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { gap: 36px; }
  .brand-logos { grid-template-columns: repeat(4, 1fr); }
  .customer-logos { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
  .section { padding: 72px 0; }
  .hero-inner { grid-template-columns: 1fr; padding: 56px 0 48px; min-height: 0; }
  .hero-visual { height: 340px; margin-top: 20px; }
  .stats-band { margin-top: -30px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line-soft); }
  .concept-grid, .detail-grid, .contact-grid, .article-wrap { grid-template-columns: 1fr; gap: 40px; }
  .flow-card { grid-template-columns: 1fr; }
  .cat-grid, .why-grid, .process-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .buyer-grid, .custom-groups { grid-template-columns: 1fr; }
  .video-wrap { grid-template-columns: 1fr; }
  .article-side { position: static; }
  .cta-band { padding: 40px; }
  .sub-form { max-width: none; }
  .form-card { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .wrap { padding: 0 18px; }
  .brand { gap: 8px; }
  .brand-mark { height: 30px; }
  .brand-name { font-size: 15px; letter-spacing: 0.08em; }
  .brand-sub { font-size: 8.5px; letter-spacing: 0.14em; }
  .header .wrap { gap: 12px; }
  .header-cta { gap: 8px; margin-left: 4px; }
  .topbar-left { gap: 14px; }
  .topbar .hide-sm { display: none; }
  .hero h1 { font-size: 32px; }
  .hero-visual { height: 290px; }
  .hero-chip { padding: 9px 12px; }
  .hero-chip b { font-size: 16px; }
  .section-head { margin-bottom: 34px; }
  .section { padding: 56px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { padding: 22px 18px; }
  .stat-val { font-size: 30px; }
  .cat-grid, .why-grid, .process-grid, .news-grid, .product-grid, .custom-groups { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .flow-left, .flow-right { padding: 30px; }
  .cta-band { padding: 30px; }
  .form-grid { grid-template-columns: 1fr; }
  .faq-a p { padding-right: 20px; }
  .sub-inner { gap: 20px; }
  .sub-form { flex-direction: column; }
  .sub-form .btn { width: 100%; }
  .brand-logos, .customer-logos { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   Edition 2 — photo-driven layout
   ========================================================================== */

/* hero: real product shots instead of the vector ring */
.hero-shots { position: absolute; inset: 2% 2% 9% 13%; }
.hero-chip.c1 { top: 1%; left: -3%; }
.hero-chip.c2 { bottom: 9%; right: -4%; }
.hero-chip.c3 { bottom: -1%; left: 5%; }
.hero-shot {
  position: absolute; inset: 0;
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(158deg, #ffffff 0%, #eaf5fc 100%);
  border: 1px solid var(--line);
  box-shadow: 0 60px 100px -70px rgba(20, 81, 111, 0.85);
  opacity: 0;
  transform: scale(1.035);
  transition: opacity 0.9s var(--ease), transform 1.4s var(--ease);
}
.hero-shot.active { opacity: 1; transform: none; }
.hero-shot img { width: 100%; height: 100%; object-fit: contain; padding: 7%; }
.hero-shot-blank { width: 100%; height: 100%; }

/* process steps with photos */
.process-step { overflow: hidden; padding-top: 0; }
.step-media { margin: 0 -26px 22px; aspect-ratio: 16 / 10; overflow: hidden; background: var(--sky-2); }
.step-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.process-step:hover .step-media img { transform: scale(1.06); }
.step-body .n { display: block; }

/* certificates: documents beside the code grid */
.cert-layout { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 28px; align-items: start; }
.cert-docs { display: grid; grid-template-columns: 1fr; gap: 16px; }
.cert-docs figure {
  margin: 0; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px; box-shadow: var(--shadow-sm);
}
.cert-docs img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; }
.cert-layout .cert-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }

/* shipment photo strip */
.ship-strip { margin-top: 34px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.ship-strip figure {
  margin: 0; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 1 / 1; background: var(--sky-2);
}
.ship-strip img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.ship-strip figure:hover img { transform: scale(1.07); }
.ship-note { margin-top: 14px; font-size: 12.5px; color: var(--muted); }

/* factory gallery */
.gal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gal-item {
  position: relative; margin: 0; overflow: hidden;
  border-radius: var(--radius); aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0d3244;
}
.gal-item.wide { grid-column: span 2; aspect-ratio: 2 / 1; }
.gal-item img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; transition: transform 0.8s var(--ease), opacity 0.4s; }
.gal-item:hover img { transform: scale(1.05); opacity: 1; }
.gal-item figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 40px 20px 16px;
  background: linear-gradient(to top, rgba(6, 33, 46, 0.92), rgba(6, 33, 46, 0));
  display: flex; flex-direction: column; gap: 3px;
}
.gal-item figcaption b { font-size: 14.5px; color: #fff; letter-spacing: -0.01em; }
.gal-item figcaption span { font-size: 12px; color: rgba(233, 246, 252, 0.72); }

/* about page photo row */
.about-photos { margin-top: 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.about-photos figure { margin: 0; }
.about-photos img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius); border: 1px solid var(--line);
}
.about-photos figcaption { margin-top: 10px; font-size: 12.5px; color: var(--ink-soft); }

/* featured first category card */
.cat-grid:not(.cap-grid) .cat-card:first-child { grid-column: span 2; }
.cat-grid:not(.cap-grid) .cat-card:first-child .cat-media { aspect-ratio: 2 / 1; }

@media (max-width: 1080px) {
  .cert-layout { grid-template-columns: 1fr; }
  .gal-grid { grid-template-columns: repeat(2, 1fr); }
  .about-photos { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero-shots { position: relative; inset: auto; height: 320px; margin-top: 30px; }
  .hero-visual { height: auto; }
  .ship-strip { grid-template-columns: repeat(2, 1fr); }
  .gal-grid { grid-template-columns: 1fr; }
  .gal-item.wide { grid-column: auto; aspect-ratio: 4 / 3; }
  .cat-grid:not(.cap-grid) .cat-card:first-child { grid-column: auto; }
  .cat-grid:not(.cap-grid) .cat-card:first-child .cat-media { aspect-ratio: 4 / 3; }
  .cert-layout .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-docs img { aspect-ratio: 3 / 2; }
}


/* ===================== product gallery / detail / pager ===================== */

.pdp-gallery { display: grid; gap: 12px; align-content: start; }
.pdp-main {
  aspect-ratio: 1 / 1; border-radius: var(--radius-lg); border: 1px solid var(--line);
  background: var(--sky-1); overflow: hidden; cursor: zoom-in; position: relative;
}
.pdp-main img { width: 100%; height: 100%; object-fit: contain; transition: opacity .18s ease; }
.pdp-thumbs { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.pdp-thumb {
  padding: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  background: #fff; cursor: pointer; aspect-ratio: 1/1; transition: border-color .18s, transform .18s;
}
.pdp-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pdp-thumb:hover { transform: translateY(-2px); }
.pdp-thumb.on { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(43,124,181,.14); }

.detail-doc { display: grid; gap: 40px; }
.detail-specs h2 { font-size: 20px; }
.spec-table.full { border-top: 1px solid var(--line); margin-top: 18px; }
.spec-table.full tr { border-bottom: 1px solid var(--line-soft); }
.spec-table.full th {
  text-align: left; font-weight: 400; color: var(--muted); font-size: 13.5px;
  padding: 13px 18px 13px 0; width: 210px; vertical-align: top;
}
.spec-table.full td { padding: 13px 0; font-size: 13.5px; color: var(--ink-2); line-height: 1.7; }
.pdp-desc p { margin-top: 14px; font-size: 15px; line-height: 1.85; color: var(--ink-2); max-width: 900px; }
.pdp-video { margin-top: 30px; }
.pdp-video video { width: 100%; max-width: 720px; border-radius: var(--radius); background: #000; }

.detail-gallery-imgs { display: grid; gap: 14px; }
.detail-gallery-imgs figure {
  margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  background: var(--sky-1);
}
.detail-gallery-imgs img { display: block; width: 100%; height: auto; }

.pager { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 52px; align-items: center; }
.pager a, .pager .pager-gap {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 10px; font-size: 13.5px; color: var(--ink-2);
  padding: 0 12px; background: #fff; transition: all .18s;
}
.pager a:hover { border-color: var(--accent); color: var(--accent); }
.pager a.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager .pager-arrow { font-weight: 500; }

@media (max-width: 900px) {
  .pdp-thumbs { grid-template-columns: repeat(5, 1fr); }
  .spec-table.full th { width: 130px; padding-right: 12px; }
}

/* ===================== buyer guide / quick quote ===================== */

.buyer-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px;
  background: var(--sky-0);
}
.buyer-card h3 { font-size: 15px; letter-spacing: .02em; margin-bottom: 10px; }
.buyer-card p { font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.buyer-card-warn { background: var(--sky-1); border-style: dashed; }
.buyer-card-warn h3 { color: #b4552c; }

.quick-quote {
  margin-top: 26px; padding: 20px 22px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--sky-1);
}
.qq-title { font-size: 14px; font-weight: 500; color: var(--ink); }
.qq-sub { font-size: 12.5px; color: var(--muted); margin-top: 4px; line-height: 1.6; }
.qq-row { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 14px; }
.qq-row input {
  width: 100%; min-width: 0; height: 44px; padding: 0 14px; font-size: 13.5px;
  border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
.qq-row input[name=email], .qq-row input[name=quantity] { grid-column: 1; }
.qq-row input:focus { outline: none; border-color: var(--accent); }
.qq-row .btn { grid-column: 1; height: 44px; width: 100%; justify-content: center; }
.quick-quote .form-msg { margin-top: 10px; font-size: 12.5px; }
.quick-quote .form-msg.ok { color: #1c7a4f; }
.quick-quote .form-msg.err { color: #b4372c; }

@media (max-width: 900px) {
  .qq-row { grid-template-columns: 1fr; }
  .qq-row .btn { grid-column: 1; }
}

/* ===================== compact news grid ===================== */

.news-grid-sm { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.news-collapsed > .post-card-sm:nth-child(n+13) { display: none; }
.post-card-sm {
  display: flex; gap: 12px; align-items: center; padding: 12px;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  transition: border-color .18s, transform .18s;
}
.post-card-sm:hover { border-color: var(--accent-3); transform: translateY(-2px); }
.post-media-sm {
  flex: none; width: 76px; height: 76px; border-radius: 10px; overflow: hidden;
  background: var(--sky-1); border: 1px solid var(--line-soft);
}
.post-media-sm img { width: 100%; height: 100%; object-fit: cover; }
.post-body-sm { min-width: 0; }
.tag-sm {
  display: inline-block; font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent); background: var(--sky-2); padding: 3px 8px; border-radius: 999px;
}
.post-body-sm h3 {
  font-size: 13px; line-height: 1.45; margin: 6px 0 4px; font-weight: 500;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.meta-sm { font-size: 11px; color: var(--muted); }
.post-product-link { margin-top: 30px; }

@media (max-width: 1100px) { .news-grid-sm { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .news-grid-sm { grid-template-columns: 1fr; } }

/* ===================== language switcher ===================== */

.lang-switch { display: inline-flex; align-items: center; margin-right: 6px; }
.lang-switch select {
  appearance: none; -webkit-appearance: none;
  height: 34px; padding: 0 26px 0 12px; font-size: 12.5px; line-height: 1;
  color: var(--ink-2); background: #fff;
  border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237b98aa' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center; background-size: 12px;
}
.lang-switch select:hover { border-color: var(--accent-3); color: var(--accent); }
.lang-switch select:focus { outline: none; border-color: var(--accent); }
.lang-switch-block select { width: 100%; height: 42px; font-size: 14px; }
.drawer-lang { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }

@media (max-width: 1100px) {
  .header-cta .lang-switch { display: none; }
}

/* narrow phones: keep the brand lockup readable without pushing the CTA off-screen */
@media (max-width: 420px) {
  .brand-sub { display: none; }
  .brand-mark { height: 28px; }
  .brand-name { font-size: 15px; letter-spacing: 0.06em; }
  .header-cta .btn-sm { padding-left: 14px; padding-right: 14px; }
}

/* ==========================================================================
   Product search
   ========================================================================== */

.psearch {
  display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 7px 8px 7px 16px;
  margin-bottom: 24px;
  box-shadow: 0 14px 34px -30px rgba(12, 42, 61, 0.6);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.psearch:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(43, 124, 181, 0.10); }
.psearch-ico { display: flex; color: var(--muted); flex: none; }
.psearch-input {
  flex: 1 1 auto; min-width: 0; border: 0; outline: 0; background: transparent;
  font: inherit; font-size: 15.5px; color: var(--ink); padding: 11px 0;
}
.psearch-input::placeholder { color: #a3b8c6; }
.psearch-input::-webkit-search-cancel-button,
.psearch-input::-webkit-search-decoration { -webkit-appearance: none; appearance: none; }
.psearch-clear {
  display: none; flex: none; width: 26px; height: 26px; border-radius: 50%;
  align-items: center; justify-content: center;
  color: var(--ink-soft); background: var(--sky-2);
  font-size: 17px; line-height: 1; text-decoration: none;
}
.psearch-input:not(:placeholder-shown) ~ .psearch-clear { display: flex; }
.psearch-clear:hover { background: var(--accent-3); color: var(--ink); }
.psearch-btn {
  flex: none; border: 0; cursor: pointer; font: inherit;
  font-size: 14px; font-weight: 600; letter-spacing: 0.01em;
  color: #fff; background: var(--accent);
  padding: 12px 24px; border-radius: 10px;
  transition: background 0.2s;
}
.psearch-btn:hover { background: var(--accent-deep); }

.search-summary { font-size: 14px; color: var(--ink-soft); margin-bottom: 22px; }
.search-summary b { color: var(--ink); font-weight: 600; }
.search-q { color: var(--accent); }
.search-articles { margin-top: 58px; }
.search-articles > h3 { font-size: 20px; font-weight: 500; margin-bottom: 22px; }
.search-more { margin-top: 22px; font-size: 13.5px; color: var(--muted); }
.search-empty { padding: 40px 0 8px; }
.search-empty h3 { font-size: 19px; font-weight: 500; }
.search-empty p { margin-top: 10px; color: var(--ink-soft); font-size: 14.5px; }
.search-cats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.search-cats a {
  padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 13.5px; color: var(--ink-2); background: #fff;
  transition: border-color 0.2s, color 0.2s;
}
.search-cats a:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 700px) {
  .psearch { border-radius: 12px; padding: 5px 6px 5px 13px; gap: 8px; }
  .psearch-input { font-size: 14.5px; padding: 10px 0; }
  .psearch-btn { padding: 11px 16px; font-size: 13.5px; }
  .search-articles { margin-top: 42px; }
}

/* header search shortcut */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 10px;
  color: var(--ink-2); background: transparent;
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.icon-btn:hover { background: var(--sky-1); border-color: var(--line); color: var(--accent); }
@media (max-width: 980px) { .icon-btn { display: none; } }

/* ==========================================================================
   Hero mosaic — four category shots instead of one rotating image
   ========================================================================== */

.hero-mosaic {
  position: absolute;
  inset: 0 0 0 5%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 13px;
}
.hm-tile {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 34px 64px -52px rgba(20, 81, 111, 0.9);
}
.hm-tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.1s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.hm-tile:hover img { transform: scale(1.07); }
.hm-tile figcaption {
  position: absolute; left: 11px; bottom: 11px;
  padding: 5px 11px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink-2);
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em; line-height: 1.35;
  box-shadow: 0 8px 18px -14px rgba(12, 42, 61, 0.9);
}
html.anim .hm-tile { animation: hmFloat 9s ease-in-out infinite; }
.hm-2 { animation-delay: 0.9s; }
.hm-3 { animation-delay: 1.8s; }
.hm-4 { animation-delay: 2.7s; }
@keyframes hmFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
/* keep the floating stat chips clear of the captions */
.hero-mosaic ~ .hero-chip.c1 { top: -2%; left: -1%; }
.hero-mosaic ~ .hero-chip.c2 { bottom: -3%; right: -2%; }
.hero-mosaic ~ .hero-chip.c3 { bottom: -4%; left: 2%; }

@media (max-width: 980px) {
  .hero-mosaic { position: relative; inset: auto; height: 330px; margin-top: 24px; }
  .hero-mosaic ~ .hero-chip.c1 { top: -8px; left: auto; right: 8px; }
  .hero-mosaic ~ .hero-chip.c2 { bottom: 8px; right: 6px; }
  .hero-mosaic ~ .hero-chip.c3 { display: none; }
}
@media (max-width: 700px) {
  .hero-mosaic { height: 250px; gap: 9px; margin-top: 18px; }
  .hm-tile { border-radius: 15px; }
  .hm-tile figcaption { font-size: 10px; padding: 4px 9px; left: 7px; bottom: 7px; }
  .hero-mosaic ~ .hero-chip { display: none; }
}

/* no floating stat chips over the mosaic — the stats band below already covers them */
.hero-mosaic { inset: 0 0 0 2%; }

/* soft brand glow behind the mosaic so the four shots read as one composition */
.hero-visual::before {
  content: '';
  position: absolute;
  inset: -7% -9% -8% -2%;
  border-radius: 44px;
  background:
    radial-gradient(circle at 72% 26%, rgba(142, 205, 236, 0.50) 0%, rgba(142, 205, 236, 0) 62%),
    radial-gradient(circle at 22% 78%, rgba(255, 205, 220, 0.45) 0%, rgba(255, 205, 220, 0) 60%),
    radial-gradient(circle at 88% 86%, rgba(250, 232, 190, 0.40) 0%, rgba(250, 232, 190, 0) 58%);
  pointer-events: none;
  z-index: 0;
}
.hero-mosaic { z-index: 1; gap: 10px; }
@media (max-width: 700px) { .hero-mosaic { gap: 8px; } }

/* soften the glow edge so it reads as light, not as a panel */
.hero-visual::before { filter: blur(26px); opacity: 0.9; }

/* trim the studio white margin so the products fill their tile */
.hm-tile img { transform: scale(1.06); }
.hm-tile:hover img { transform: scale(1.13); }

/* keep studio white margins intact — scaling cropped the product edges */
.hm-tile img { transform: none; }
.hm-tile:hover img { transform: scale(1.06); }

/* narrow screens: four across at a square ratio, two-by-two on phones */
@media (max-width: 980px) {
  .hero-mosaic {
    position: relative;
    inset: auto;
    height: auto;
    margin-top: 26px;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto;
    gap: 9px;
  }
  .hm-tile { aspect-ratio: 1 / 1; }
  .hm-tile figcaption { font-size: 10px; padding: 4px 9px; left: 8px; bottom: 8px; }
}
@media (max-width: 700px) {
  .hero-mosaic {
    grid-template-columns: 1fr 1fr;
    margin-top: 20px;
    gap: 8px;
  }
  .hm-tile { aspect-ratio: 4 / 3; border-radius: 15px; }
}

/* studio white shots: show the whole product instead of cropping it */
.hm-tile.hm-contain { background: #fbfdfe; }
.hm-tile.hm-contain img { object-fit: contain; padding: 10px; }

/* give contain-fitted shots a little more room */
.hm-tile.hm-contain img { padding: 4px; }

/* keep the header CTA inside the viewport once the search icon is present */
.header .wrap { gap: 22px; }
.nav { gap: 2px; }
.nav-link { padding: 10px 11px; }
.icon-btn { width: 34px; height: 34px; }
@media (max-width: 1280px) { .nav-link { padding: 10px 9px; font-size: 13.5px; } }