/* ================================================================
   EtherWave — 深圳市元能瀚海科技有限公司  |  Style System
   Pure CSS, no dependencies, responsive, B2B industrial aesthetic
   ================================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-primary: #0f2b46;
  --c-primary-l: #163d61;
  --c-accent: #2563eb;
  --c-accent-h: #1d4ed8;
  --c-accent-l: #eff6ff;
  --c-cta: #ea580c;
  --c-cta-h: #c2410c;
  --c-bg: #ffffff;
  --c-bg-alt: #f8fafc;
  --c-bg-dk: #0f172a;
  --c-text: #1e293b;
  --c-text-l: #64748b;
  --c-text-inv: #f1f5f9;
  --c-border: #e2e8f0;
  --c-border-l: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.07), 0 4px 6px -4px rgba(0,0,0,.05);
  --r-sm: 4px;
  --r: 6px;
  --r-lg: 8px;
  --r-xl: 12px;
  --t: .2s ease;
  --mw: 1200px;
  --nav-h: 72px;
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --font-en: -apple-system, "Helvetica Neue", Arial, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--mw); margin: 0 auto; padding: 0 24px; }
.sec { padding: 80px 0; }
.sec-sm { padding: 56px 0; }
.sec-alt { background: var(--c-bg-alt); }
.sec-dark { background: var(--c-bg-dk); color: var(--c-text-inv); }

.sec-hd { text-align: center; margin-bottom: 52px; }
.sec-hd h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 10px;
  letter-spacing: -.01em;
}
.sec-dark .sec-hd h2 { color: #fff; }
.sec-hd p {
  font-size: 1.05rem;
  color: var(--c-text-l);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}
.sec-dark .sec-hd p { color: #94a3b8; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; font-size: .9375rem; font-weight: 500;
  border-radius: var(--r); border: 1px solid transparent;
  cursor: pointer; transition: all var(--t); line-height: 1.5;
  font-family: var(--font); white-space: nowrap;
}
.btn-p { background: var(--c-accent); color: #fff; }
.btn-p:hover { background: var(--c-accent-h); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-o { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.btn-o:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.6); }
.btn-cta { background: var(--c-cta); color: #fff; }
.btn-cta:hover { background: var(--c-cta-h); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--c-accent); border-color: var(--c-border); }
.btn-outline:hover { border-color: var(--c-accent); background: var(--c-accent-l); }
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Header ---------- */
.hdr {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: #fff;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border);
  height: var(--nav-h);
}
.hdr-in {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h);
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-ic {
  width: 45px; height: 45px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.logo-ic img { width: 100%; height: 100%; display: block; }
.ftr .logo-ic img { filter: brightness(0) invert(1); }
.logo-tx { display: flex; flex-direction: column; line-height: 1.15; }
.logo-zh { font-size: 1.5rem; font-weight: 700; color: var(--c-primary); letter-spacing: .02em; }
.logo-en { font-size: .65rem; font-weight: 600; color: var(--c-text-l); letter-spacing: .08em; }
.ftr .logo-zh { font-size: .9rem; }

.nav-tog { display: none; }
.nav-tog-lab {
  display: none; flex-direction: column; justify-content: center;
  gap: 5px; width: 28px; height: 28px; cursor: pointer; z-index: 1001;
}
.nav-tog-lab span {
  display: block; height: 2px; background: var(--c-primary);
  border-radius: 1px; transition: all .3s ease; transform-origin: center;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 16px; font-size: .9rem; font-weight: 500;
  color: var(--c-text); border-radius: var(--r); transition: all var(--t);
}
.nav a:hover, .nav a.act { color: var(--c-accent); background: var(--c-accent-l); }
.nav-cta {
  margin-left: 10px; padding: 8px 20px !important;
  background: var(--c-accent) !important; color: #fff !important;
  border-radius: var(--r) !important;
}
.nav-cta:hover { background: var(--c-accent-h) !important; }

/* ---------- Hero ---------- */
.hero {
  padding: 148px 0 100px;
  background: #15191f;
  color: #fff; position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('../images/hero-business.png') center/cover no-repeat;
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(15,19,25,.96) 0%, rgba(15,19,25,.85) 40%, rgba(15,19,25,.5) 72%, rgba(15,19,25,.28) 100%),
    linear-gradient(0deg, rgba(15,19,25,.72) 0%, transparent 42%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero-c { max-width: 660px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: rgba(37,99,235,.15);
  border: 1px solid rgba(37,99,235,.25); border-radius: 100px;
  font-size: .8125rem; font-weight: 500; color: #93c5fd; margin-bottom: 28px;
}
.hero-tag::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: #60a5fa; flex-shrink: 0;
}
.hero h1 {
  font-size: 2.75rem; font-weight: 700; line-height: 1.3;
  margin-bottom: 20px; letter-spacing: -.02em;
}
.hero-desc {
  font-size: 1.1rem; line-height: 1.8; color: #cbd5e1;
  margin-bottom: 36px; max-width: 560px;
}
.hero-stats {
  display: flex; gap: 48px; margin-top: 56px;
  padding-top: 36px; border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat-n {
  font-size: 2rem; font-weight: 700; color: #fff;
  font-family: var(--font-en); line-height: 1.2;
}
.hero-stat-l { font-size: .8125rem; color: #94a3b8; margin-top: 4px; }

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
}
.cap-card {
  padding: 28px 22px; background: var(--c-bg);
  border: 1px solid var(--c-border); border-radius: var(--r-lg);
  transition: all var(--t);
}
.cap-card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-lg); transform: translateY(-3px);
}
.cap-ic {
  width: 42px; height: 42px; border-radius: var(--r);
  background: var(--c-accent-l); display: flex;
  align-items: center; justify-content: center; margin-bottom: 16px;
}
.cap-ic svg { width: 20px; height: 20px; stroke: var(--c-accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.cap-card h3 { font-size: .9375rem; font-weight: 600; color: var(--c-primary); margin-bottom: 8px; }
.cap-card p { font-size: .8125rem; color: var(--c-text-l); line-height: 1.65; }

/* ---------- VAR ---------- */
.var-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.var-card {
  padding: 28px 24px; background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08); border-radius: var(--r-lg);
  transition: all var(--t);
}
.var-card:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.15); }
.var-tag {
  display: inline-block; font-size: .6875rem; font-weight: 600;
  color: #60a5fa; letter-spacing: .08em; text-transform: uppercase;
  margin-bottom: 12px; font-family: var(--font-en);
}
.var-card h3 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 8px; }
.var-card p { font-size: .8125rem; color: #94a3b8; line-height: 1.65; }

/* ---------- Products ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.prod-card {
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--r-lg); padding: 32px 28px;
  transition: all var(--t); position: relative; overflow: hidden;
}
.prod-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--c-accent);
  transform: scaleX(0); transition: transform .3s ease; transform-origin: left;
}
.prod-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: transparent; }
.prod-card:hover::before { transform: scaleX(1); }
.prod-ic {
  width: 48px; height: 48px; border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--c-accent-l), #dbeafe);
  display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.prod-ic svg { width: 24px; height: 24px; stroke: var(--c-accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.prod-card h3 { font-size: 1.0625rem; font-weight: 600; color: var(--c-primary); margin-bottom: 10px; }
.prod-card > p { font-size: .8125rem; color: var(--c-text-l); line-height: 1.65; margin-bottom: 16px; }
.prod-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-tag {
  padding: 3px 10px; background: var(--c-bg-alt);
  border: 1px solid var(--c-border-l); border-radius: 100px;
  font-size: .75rem; color: var(--c-text-l);
}

.prod-card-wide { grid-column: span 3; }

/* ---------- Brands ---------- */
.brands-row {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 16px 20px;
}
.brand-chip {
  display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--r);
  padding: 16px 24px; height: 64px; min-width: 110px;
  transition: all var(--t);
}
.brand-chip img { height: 32px; width: auto; max-width: 150px; object-fit: contain; display: block; }
.brand-chip:hover {
  border-color: var(--c-accent); box-shadow: var(--shadow); transform: translateY(-1px);
}

/* ---------- Applications ---------- */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.app-card {
  position: relative; border-radius: var(--r); overflow: hidden;
  aspect-ratio: 4/3; background: var(--c-bg-dk);
}
.app-card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.app-card:hover img { transform: scale(1.06); }
.app-card span {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 26px 16px 12px;
  background: linear-gradient(transparent, rgba(0,0,0,.82));
  color: #fff; font-weight: 600; font-size: .9375rem;
}

/* ---------- CTA ---------- */
.cta {
  padding: 72px 0;
  background: linear-gradient(135deg, #0f2b46 0%, #163d61 100%);
  color: #fff; text-align: center;
}
.cta h2 { font-size: 1.75rem; font-weight: 700; margin-bottom: 12px; }
.cta p { font-size: 1.05rem; color: #cbd5e1; margin-bottom: 32px; }

/* ---------- Footer ---------- */
.ftr {
  background: var(--c-bg-dk); color: #94a3b8;
  padding: 56px 0 0; border-top: 1px solid rgba(255,255,255,.06);
}
.ftr-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 40px;
}
.ftr-brand p { font-size: .8125rem; line-height: 1.7; margin-top: 14px; color: #64748b; }
.ftr h4 {
  font-size: .8125rem; font-weight: 600; color: #e2e8f0;
  margin-bottom: 16px; letter-spacing: .04em;
}
.ftr ul li { margin-bottom: 10px; }
.ftr ul li a { font-size: .8125rem; color: #64748b; transition: color var(--t); }
.ftr ul li a:hover { color: #e2e8f0; }
.ftr-bot {
  padding: 20px 0; border-top: 1px solid rgba(255,255,255,.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: .75rem; color: #475569; flex-wrap: wrap; gap: 8px;
}

/* ========================
   ABOUT PAGE
   ======================== */
.pg-hero {
  padding: 128px 0 64px;
  background: linear-gradient(145deg, #091a2a 0%, #0f2b46 50%, #163d61 100%);
  color: #fff; position: relative; overflow: hidden;
}
.pg-hero::after {
  content: ''; position: absolute; inset: 0; opacity: .2;
  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: 60px 60px;
}
.pg-hero .wrap { position: relative; z-index: 1; }
.pg-hero h1 { font-size: 2.25rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -.01em; }
.pg-hero p { font-size: 1.05rem; color: #cbd5e1; max-width: 600px; line-height: 1.8; }

/* About blocks */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-txt h3 { font-size: 1.375rem; font-weight: 600; color: var(--c-primary); margin-bottom: 16px; }
.about-txt p { font-size: .9375rem; color: var(--c-text); line-height: 1.85; margin-bottom: 14px; }
.about-hl {
  padding: 24px 28px; background: var(--c-accent-l);
  border-left: 3px solid var(--c-accent); border-radius: 0 var(--r) var(--r) 0;
}
.about-hl p { color: var(--c-primary); font-weight: 500; margin-bottom: 0; }

/* Stats row */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card {
  text-align: center; padding: 32px 20px;
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--r-lg);
}
.stat-num {
  font-size: 2.25rem; font-weight: 700; color: var(--c-accent);
  font-family: var(--font-en); line-height: 1; margin-bottom: 4px;
}
.stat-num span { font-size: 1rem; font-weight: 500; }
.stat-lab { font-size: .8125rem; color: var(--c-text-l); }

/* ========================
   PRODUCTS PAGE
   ======================== */
.prod-detail {
  display: grid; grid-template-columns: 220px 1fr;
  gap: 40px; align-items: start;
}
.prod-side { position: sticky; top: calc(var(--nav-h) + 24px); }
.prod-side-nav a {
  display: block; padding: 10px 16px; font-size: .875rem;
  color: var(--c-text-l); border-radius: var(--r);
  border-left: 2px solid transparent; transition: all var(--t); margin-bottom: 2px;
}
.prod-side-nav a:hover, .prod-side-nav a.act {
  color: var(--c-accent); background: var(--c-accent-l);
  border-left-color: var(--c-accent);
}
.prod-body {}
.prod-section { margin-bottom: 56px; scroll-margin-top: calc(var(--nav-h) + 24px); }
.prod-section:last-child { margin-bottom: 0; }
.prod-section-hd {
  display: flex; align-items: center; gap: 14px; margin-bottom: 20px;
  padding-bottom: 16px; border-bottom: 1px solid var(--c-border);
}
.prod-section-hd .psh-ic {
  width: 40px; height: 40px; border-radius: var(--r);
  background: var(--c-accent-l); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.prod-section-hd .psh-ic svg { width: 20px; height: 20px; stroke: var(--c-accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.prod-section-hd h3 { font-size: 1.25rem; font-weight: 600; color: var(--c-primary); }
.prod-section > p { font-size: .9375rem; color: var(--c-text-l); line-height: 1.75; margin-bottom: 20px; }

.sub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.sub-card {
  padding: 20px 22px; background: var(--c-bg);
  border: 1px solid var(--c-border); border-radius: var(--r);
  transition: all var(--t);
}
.sub-card:hover { border-color: var(--c-accent); box-shadow: var(--shadow); }
.sub-card h4 { font-size: .875rem; font-weight: 600; color: var(--c-primary); margin-bottom: 6px; }
.sub-card p { font-size: .8125rem; color: var(--c-text-l); line-height: 1.6; }

/* ========================
   CONTACT PAGE
   ======================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info {}
.contact-info h3 { font-size: 1.375rem; font-weight: 600; color: var(--c-primary); margin-bottom: 8px; }
.contact-info > p { font-size: .9375rem; color: var(--c-text-l); line-height: 1.75; margin-bottom: 28px; }
.contact-list { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-ic {
  width: 40px; height: 40px; border-radius: var(--r);
  background: var(--c-accent-l); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-ic svg { width: 18px; height: 18px; stroke: var(--c-accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.contact-item .ci-label { font-size: .75rem; color: var(--c-text-l); margin-bottom: 2px; }
.contact-item .ci-value { font-size: .9375rem; font-weight: 500; color: var(--c-primary); }

.inquiry-guide {
  margin-top: 36px; padding: 24px 28px;
  background: var(--c-bg-alt); border: 1px solid var(--c-border); border-radius: var(--r-lg);
}
.inquiry-guide h4 {
  font-size: .9375rem; font-weight: 600; color: var(--c-primary);
  margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.inquiry-guide ol { padding-left: 20px; }
.inquiry-guide ol li {
  list-style: decimal; font-size: .875rem; color: var(--c-text);
  line-height: 1.7; margin-bottom: 6px;
}
.inquiry-guide ol li::marker { color: var(--c-accent); }

.contact-form-area {
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--r-lg); padding: 36px 32px;
}
.contact-form-area h3 { font-size: 1.125rem; font-weight: 600; color: var(--c-primary); margin-bottom: 6px; }
.contact-form-area > p { font-size: .875rem; color: var(--c-text-l); margin-bottom: 24px; }
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block; font-size: .8125rem; font-weight: 500;
  color: var(--c-text); margin-bottom: 6px;
}
.form-row input, .form-row textarea, .form-row select {
  width: 100%; padding: 10px 14px; font-size: .875rem;
  font-family: var(--font); border: 1px solid var(--c-border);
  border-radius: var(--r); background: var(--c-bg);
  color: var(--c-text); transition: border-color var(--t); outline: none;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(37,99,235,.08);
}
.form-row textarea { resize: vertical; min-height: 100px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: .75rem; color: var(--c-text-l); margin-top: 12px; }

/* Breadcrumb */
.breadcrumb {
  padding: 16px 0; font-size: .8125rem; color: var(--c-text-l);
}
.breadcrumb a { color: var(--c-text-l); transition: color var(--t); }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb span { margin: 0 6px; color: var(--c-border); }

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(3, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-card-wide { grid-column: span 2; }
  .ftr-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .prod-detail { grid-template-columns: 1fr; }
  .prod-side { position: static; }
  .prod-side-nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .prod-side-nav a { border-left: none; border-bottom: 2px solid transparent; padding: 8px 14px; }
  .prod-side-nav a:hover, .prod-side-nav a.act { border-left: none; border-bottom-color: var(--c-accent); }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .sec { padding: 56px 0; }
  .sec-hd { margin-bottom: 36px; }
  .sec-hd h2 { font-size: 1.5rem; }
  .hero { padding: 112px 0 72px; }
  .hero h1 { font-size: 1.875rem; }
  .hero-desc { font-size: 1rem; }
  .hero-stats { flex-wrap: wrap; gap: 24px 40px; margin-top: 40px; padding-top: 28px; }
  .hero-stat-n { font-size: 1.5rem; }
  .pg-hero { padding: 100px 0 48px; }
  .pg-hero h1 { font-size: 1.75rem; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .var-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr; }
  .prod-card-wide { grid-column: span 1; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .ftr-grid { grid-template-columns: 1fr; gap: 28px; }
  .ftr-bot { flex-direction: column; text-align: center; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .sub-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-card { padding: 24px 16px; }
  .stat-num { font-size: 1.75rem; }

  /* Mobile nav */
  .nav-tog-lab { display: flex; }
  .nav {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px 20px; gap: 2px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%); opacity: 0;
    transition: all .3s ease; pointer-events: none;
  }
  .nav a { padding: 12px 16px; border-radius: var(--r); }
  .nav-cta { margin-left: 0 !important; text-align: center; margin-top: 8px; }
  .nav-tog:checked ~ .nav { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-tog:checked ~ .nav-tog-lab span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-tog:checked ~ .nav-tog-lab span:nth-child(2) { opacity: 0; }
  .nav-tog:checked ~ .nav-tog-lab span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 1.625rem; }
  .hero-tag { font-size: .75rem; }
  .cap-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .brand-chip { padding: 10px 18px; font-size: .8125rem; }
  .btn { padding: 10px 22px; font-size: .875rem; }
  .hero-stats { gap: 20px 32px; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

/* ---------- Utilities ---------- */
.mt-sm { margin-top: 24px; }
.mt-md { margin-top: 40px; }
.text-center { text-align: center; }