:root {
  --bg: #f4f7ff;
  --paper: #ffffff;
  --ink: #11203d;
  --muted: #4d5f80;
  --line: #d8e3ff;
  --brand: #1d6cff;
  --brand-deep: #133a8b;
  --brand-soft: #e8f0ff;
  --accent: #20d5ff;
  --maxw: 1140px;
  --radius: 20px;
  --shadow: 0 12px 34px rgba(21, 47, 97, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  background:
    linear-gradient(rgba(32, 92, 220, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 92, 220, 0.045) 1px, transparent 1px),
    radial-gradient(920px 420px at -5% -5%, #dbe7ff 0%, transparent 70%),
    radial-gradient(840px 420px at 105% -5%, #e6f4ff 0%, transparent 75%),
    var(--bg);
  background-size:
    34px 34px,
    34px 34px,
    auto,
    auto,
    auto;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(var(--maxw), calc(100% - 2.6rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 90;
  border-bottom: 1px solid rgba(216, 227, 255, 0.82);
  background: rgba(245, 248, 255, 0.9);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.16rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  box-shadow: 0 0 0 5px rgba(29, 108, 255, 0.14);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav a {
  color: var(--muted);
  min-width: 5.5rem;
  text-align: center;
  padding: 0.24rem 0.2rem;
  border-bottom: 2px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.nav a.active,
.nav a:hover {
  color: var(--brand);
  border-color: var(--brand);
}

.cta-mini {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  font-size: 0.88rem;
  padding: 0.5rem 0.88rem;
  transition: transform 0.25s ease;
}

.cta-mini:hover {
  transform: translateY(-1px);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 0.28rem 0.6rem;
  font-size: 0.88rem;
}

.mobile-nav {
  display: none;
}

.hero {
  padding: 4.6rem 0 3.2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.25rem 0.72rem;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid #c5d7ff;
}

h1 {
  margin: 0.85rem 0 0;
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
}

h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.25;
}

h3 {
  margin: 0;
  font-size: 1.12rem;
}

.lead {
  margin: 1rem 0 0;
  color: var(--muted);
  max-width: 63ch;
}

.section-desc {
  margin: 0.8rem 0 0;
  color: var(--muted);
  max-width: 72ch;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-primary,
.btn-ghost {
  height: 45px;
  border-radius: 11px;
  padding: 0 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #13a9ff);
  box-shadow: 0 8px 24px rgba(29, 108, 255, 0.28);
}

.btn-primary:hover,
.btn-ghost:hover {
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--brand);
  border: 1px solid #c6d8ff;
  background: #fff;
}

.hero-media {
  border-radius: 22px;
  padding: 1rem;
  border: 1px solid #d2e0ff;
  background: linear-gradient(160deg, #ffffff, #edf4ff);
  box-shadow: var(--shadow);
  animation: floatCard 6s ease-in-out infinite;
}

.hero-media p {
  margin: 0.7rem 0 0;
  color: #4a6088;
  text-align: center;
  font-size: 0.9rem;
}

.qr-hero-media {
  display: grid;
  place-items: center;
}

.qr-hero-media img {
  width: min(100%, 290px);
}

.product-qr-sample {
  width: min(100%, 248px);
}

.product-hero-card {
  width: min(100%, 320px);
  text-align: center;
  border: 1px solid #9fc4ff;
  box-shadow: 0 14px 30px rgba(20, 78, 170, 0.16);
}

.product-hero-card h3 {
  color: #143f85;
  margin-bottom: 0.65rem;
}

body[data-page="products"] .hero h1,
body[data-page="home"] .hero h1 {
  background: linear-gradient(90deg, #0f4ca3 0%, #1c7cff 55%, #0fa7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

body[data-page="products"] .hero .eyebrow {
  border-color: #9ec4ff;
  background: #edf5ff;
  color: #114b9a;
}

.product-hero-card p {
  margin-top: 0.65rem;
  color: #556b93;
  font-size: 0.84rem;
}

body[data-page="products"] .panel,
body[data-page="products"] .card {
  position: relative;
  overflow: hidden;
  border-color: #c8dbff;
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
}

body[data-page="products"] .panel::before,
body[data-page="products"] .card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #1d6cff, #23b7ff);
}

.tech-hero-media {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.hero-summary {
  border-radius: 14px;
  border: 1px solid #d2e0ff;
  background: #fff;
  padding: 1.05rem;
}

.hero-summary h3 {
  margin-bottom: 0.7rem;
}

.hero-ai-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin-bottom: 0.68rem;
}

.hero-ai-chip-row span {
  border: 1px solid #cddfff;
  background: #f3f8ff;
  border-radius: 999px;
  color: #1f4d96;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.22rem 0.58rem;
}

.hero-summary-list {
  margin: 0;
  padding-left: 1.2rem;
  color: #29497c;
}

.hero-summary-list li + li {
  margin-top: 0.4rem;
}

.hero-compare-tags {
  margin-top: 0.95rem;
}

.nn-section {
  padding-top: 2.8rem;
  padding-bottom: 3.4rem;
}

.nn-section .panel {
  border-color: #c8dbff;
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
  box-shadow: 0 10px 24px rgba(21, 74, 163, 0.08);
}

.nn-top {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1rem;
}

.nn-intro-panel {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.nn-visual-panel {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.nn-diagram-panel {
  position: relative;
  overflow: hidden;
}

.nn-intro-panel::before,
.nn-visual-panel::before,
.nn-diagram-panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #1d6cff, #23b7ff);
}

.nn-intro-panel h2,
.nn-visual-panel h3,
.nn-diagram-panel h3 {
  color: #123f86;
}

.nn-intro-panel li {
  color: #2f4f80;
}

.nn-visual-panel h3 {
  margin-bottom: 0.72rem;
}

.nn-visual {
  margin: 0;
  border: 1px solid #c7daff;
  border-radius: 12px;
  overflow: hidden;
  padding: 0.24rem;
  background: radial-gradient(circle at 18% 20%, #f3f8ff 0%, #e8f2ff 44%, #deebff 100%);
}

.nn-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.nn-visual-note {
  margin-top: 0.7rem;
  color: #5a6f95;
  font-size: 0.86rem;
}

.nn-diagram-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.nn-diagram-panel h3 {
  margin-bottom: 0.75rem;
}

.nn-diagram {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0.48rem;
  flex-wrap: wrap;
  margin-top: 0.2rem;
}

.nn-col {
  border: 1px solid #cfdeff;
  background: #f5f9ff;
  border-radius: 10px;
  padding: 0.65rem 0.55rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  width: 152px;
  min-height: 140px;
}

.nn-col strong {
  display: block;
  color: #153f84;
  margin-bottom: 0.38rem;
}

.nn-col span {
  display: block;
  color: #355785;
  font-size: 0.85rem;
}

.nn-col span + span {
  margin-top: 0.25rem;
}

.nn-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  color: #1e66cc;
  font-weight: 700;
  font-size: 1.2rem;
}

.nn-extra-desc {
  margin-top: 0.52rem;
}

.core-tech-section {
  padding-top: 3.3rem;
  padding-bottom: 3.3rem;
}

.section-demand {
  background: linear-gradient(180deg, #f7faff 0%, #edf4ff 100%);
  border-top: 1px solid #dbe6ff;
  border-bottom: 1px solid #dbe6ff;
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.demand-tags {
  margin-top: 0.55rem;
}

.demand-grid {
  margin-top: 0.72rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.62rem;
}

.demand-card {
  border-color: #c8dbff;
  background: #fff;
  padding: 0.88rem;
}

.demand-card h3 {
  color: #16418b;
  font-size: 0.95rem;
}

.demand-card p {
  margin-top: 0.35rem;
  color: #3b5f90;
  font-size: 0.84rem;
  line-height: 1.5;
}

.core-tech-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.core-tech-card {
  border-color: #c8dbff;
  background: linear-gradient(180deg, #ffffff 0%, #f4f9ff 100%);
}

.core-tech-card h3 {
  color: #123f86;
}

.core-tech-card p {
  color: #4b628b;
}

.core-tech-figure {
  margin: 0.7rem 0 0;
  border: 1px solid #d7e4ff;
  border-radius: 10px;
  overflow: hidden;
  background: #f8fbff;
}

.core-tech-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.section-advantages {
  background: #edf3ff;
  border-top: 1px solid #dde6ff;
  border-bottom: 1px solid #dde6ff;
}

.section-compare {
  background: linear-gradient(180deg, #eef4ff 0%, #f7faff 100%);
  border-top: 1px solid #d7e3ff;
  border-bottom: 1px solid #d7e3ff;
}

.section-compare h2,
.section-compare .section-desc {
  color: #173f81;
}

.section-eyebrow {
  margin-bottom: 0.6rem;
}

.compare-highlight-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.compare-highlight-card {
  border-radius: 12px;
  border: 1px solid #cfe0ff;
  background: #fff;
  padding: 0.9rem;
  box-shadow: 0 10px 22px rgba(26, 77, 161, 0.08);
}

.compare-highlight-card h3 {
  color: #16418b;
}

.compare-highlight-card p {
  margin: 0.48rem 0 0;
  color: #395888;
}

.compare-focus-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.compare-focus-card {
  border-radius: 12px;
  border: 1px solid #b9d3ff;
  background: linear-gradient(180deg, #f5f9ff 0%, #eaf2ff 100%);
  padding: 0.9rem;
  box-shadow: 0 10px 20px rgba(26, 77, 161, 0.08);
}

.compare-focus-card h3 {
  color: #104290;
  font-size: 1rem;
}

.compare-focus-card p {
  margin: 0.42rem 0 0;
  color: #345989;
  font-size: 0.86rem;
  line-height: 1.55;
}

.compare-lane {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px minmax(0, 1fr);
  gap: 0.62rem 0.78rem;
  align-items: center;
}

.lane-head {
  border-radius: 999px;
  text-align: center;
  padding: 0.3rem 0.64rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.lane-head.lane-new {
  background: linear-gradient(120deg, #0f5cd0, #1c89ff);
  color: #fff;
  box-shadow: 0 8px 20px rgba(17, 94, 208, 0.24);
}

.lane-head.lane-mid {
  background: #fff;
  color: #1c417d;
  border: 1px solid #cbdcff;
}

.lane-head.lane-mid-empty {
  visibility: hidden;
}

.lane-head.lane-old {
  background: #f1e3cf;
  color: #7c5a33;
}

.lane-card {
  border-radius: 12px;
  min-height: 72px;
  display: flex;
  align-items: center;
  padding: 0.82rem 0.88rem;
}

.lane-card p {
  margin: 0;
  line-height: 1.48;
  font-size: 0.9rem;
}

.lane-card.lane-new {
  border: 1px solid #8bb7ff;
  background: linear-gradient(180deg, #edf5ff 0%, #e1efff 100%);
  color: #133d7f;
  box-shadow: 0 8px 18px rgba(20, 85, 183, 0.1);
}

.lane-card.lane-old {
  border: 1px solid #e8d4b5;
  background: #fff9f1;
  color: #7b6140;
}

.lane-dim {
  border-radius: 999px;
  border: 1px solid #c7d9ff;
  background: #f5f9ff;
  color: #1f4d96;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.5rem;
}

.market-scheme-box {
  margin-top: 1rem;
  border: 1px solid #f0d7b2;
  border-radius: 14px;
  background: linear-gradient(180deg, #fffaf2 0%, #fff6ea 100%);
  padding: 0.9rem;
}

.market-scheme-grid {
  margin-top: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.market-scheme-card {
  border-radius: 12px;
  border: 1px solid #efdcbf;
  background: #fffdf8;
  padding: 0.5rem;
}

.market-scheme-card figure {
  margin: 0;
  border-radius: 8px;
  border: 1px solid #f1dec2;
  overflow: hidden;
  background: #fff7ea;
}

.market-scheme-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.market-scheme-card h4 {
  margin: 0.45rem 0 0;
  color: #8b5a26;
  font-size: 0.9rem;
}

.market-scheme-card p {
  margin: 0.35rem 0 0;
  color: #8a6945;
  font-size: 0.82rem;
  line-height: 1.5;
}

.production-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.production-photo-card {
  margin: 0;
  border-radius: 12px;
  border: 1px solid #d2dfff;
  background: #fff;
  padding: 0.5rem;
}

.production-photo-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 9px;
}

.production-photo-card figcaption {
  margin-top: 0.48rem;
  font-size: 0.82rem;
  color: #49618d;
  text-align: center;
}

.signal-split {
  align-items: start;
}

.signal-panel {
  padding: 0.95rem;
}

.signal-shot {
  margin: 0;
  border: 1px solid #dce7ff;
  border-radius: 10px;
  overflow: hidden;
  background: #f6f9ff;
}

.signal-shot img {
  width: 100%;
  height: auto;
}

.hero-tech-list {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  color: #274579;
}

.hero-tech-list li + li {
  margin-top: 0.38rem;
}

.hero-tech-note {
  margin: 0;
  color: #5a6f95;
  font-size: 0.84rem;
  text-align: left;
  margin-top: 0.7rem;
}

.tag-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.54rem;
}

.tag-row span {
  border: 1px solid #d6e1ff;
  background: #fff;
  border-radius: 999px;
  padding: 0.33rem 0.68rem;
  color: #31466f;
  font-size: 0.82rem;
}

.section {
  padding: 4.1rem 0;
}

.section-alt {
  background: #edf3ff;
  border-top: 1px solid #dde6ff;
  border-bottom: 1px solid #dde6ff;
}

.section-dark {
  background: linear-gradient(140deg, #11264f, #1b4f9e);
  color: #edf8f6;
}

.section-dark .section-desc {
  color: rgba(237, 248, 246, 0.86);
}

.card-grid {
  margin-top: 1.3rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border-radius: 15px;
  border: 1px solid #d5e1ff;
  background: #fff;
  padding: 1.12rem;
  box-shadow: 0 1px 0 rgba(16, 42, 44, 0.02);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(20, 52, 109, 0.13);
}

.card p {
  margin: 0.52rem 0 0;
  color: var(--muted);
}

.principle-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.principle-panel {
  margin-top: 1rem;
}

.metric-row {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.metric {
  border-radius: 12px;
  border: 1px solid #d1deff;
  background: #fff;
  padding: 0.9rem;
}

.metric strong {
  font-size: 1.25rem;
  color: var(--brand);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  align-items: stretch;
}

.panel {
  border-radius: 16px;
  border: 1px solid #d3def8;
  background: #fff;
  padding: 1.1rem;
}

.panel p {
  margin: 0.58rem 0 0;
  color: var(--muted);
}

.panel ul {
  margin: 0.7rem 0 0;
  padding-left: 1.2rem;
}

.panel li + li {
  margin-top: 0.42rem;
}

.panel-brief-figure {
  margin: 0.65rem 0 0;
  border: 1px solid #d8e4ff;
  border-radius: 10px;
  overflow: hidden;
  background: #f7faff;
}

.panel-brief-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.table-wrap {
  margin-top: 1.2rem;
  overflow-x: auto;
  border: 2px solid #bfd4ff;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(17, 63, 136, 0.1);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

.compare-table th,
.compare-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.82rem 0.8rem;
  border-bottom: 1px solid #dbe5ff;
  font-size: 0.92rem;
}

.compare-table th {
  background: #eff4ff;
  color: #213f74;
  font-weight: 700;
}

.compare-table tbody tr:last-child td {
  border-bottom: 0;
}

.compare-table .compare-highlight td {
  background: #dcecff;
  color: #0f3470;
  font-weight: 600;
}

.compare-table.product-compare-table thead .current-tech-col {
  background: #c8deff;
  color: #0f3470;
}

.compare-table.product-compare-table tbody .current-tech-col {
  background: #d9e8ff;
  color: #0f3470;
  font-weight: 700;
}

.compare-table.product-compare-table tbody tr:nth-child(even) .current-tech-col {
  background: #cfe1ff;
}

.compare-table.product-compare-table .legacy-tech-col {
  background: #f7faff;
  color: #3e5a86;
}

.compare-table.product-compare-table tbody td:first-child {
  background: #edf4ff;
  color: #20447b;
  font-weight: 600;
}

.dark-card {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 1rem;
}

.dark-card p {
  margin: 0.55rem 0 0;
  color: rgba(236, 248, 245, 0.88);
}

.timeline {
  margin-top: 1.1rem;
  border-left: 2px solid #b7ccff;
  padding-left: 1rem;
}

.timeline-item {
  position: relative;
  padding: 0 0 1rem 0.2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  width: 11px;
  height: 11px;
  left: -1.47rem;
  top: 0.2rem;
  border-radius: 50%;
  background: var(--brand);
}

.timeline-item strong {
  color: var(--brand-deep);
}

.timeline-item p {
  margin: 0.22rem 0 0;
  color: var(--muted);
}

.chip-wrap {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  border: 1px solid #d7e1ff;
  border-radius: 999px;
  padding: 0.32rem 0.72rem;
  background: #fff;
  font-size: 0.85rem;
}

.tabs {
  margin-top: 1.1rem;
  display: flex;
  gap: 0.56rem;
  flex-wrap: wrap;
}

.tabs button {
  border: 1px solid #cfddff;
  background: #fff;
  color: #2f4b7d;
  border-radius: 999px;
  padding: 0.38rem 0.8rem;
  font: inherit;
  cursor: pointer;
}

.tabs button.active {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #0ba8ff);
}

.module-panel {
  margin-top: 0.95rem;
}

.faq-item {
  border-radius: 12px;
  border: 1px solid #d5e1ff;
  background: #fff;
  padding: 0.95rem;
}

.faq-item + .faq-item {
  margin-top: 0.68rem;
}

.faq-item p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.contact-box {
  border-radius: 18px;
  background: linear-gradient(135deg, #18366f, #1e61c8);
  color: #eef9f7;
  padding: 1.4rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.contact-box p {
  margin: 0.5rem 0 0;
  color: rgba(238, 249, 247, 0.9);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.contact-actions .btn-ghost {
  border-color: rgba(255, 255, 255, 0.72);
  background: transparent;
  color: #fff;
}

.footer {
  padding: 1.4rem 0 1.8rem;
  color: #66789d;
  font-size: 0.88rem;
}

.contact-inline {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.2rem;
  color: #2a4370;
}

.contact-inline a {
  color: var(--brand);
  font-weight: 600;
}

.contact-inline-strong {
  margin-top: 1.1rem;
  font-size: 1.03rem;
}

.contact-inline-strong a {
  font-size: 1.05rem;
}

.contact-panel-main {
  border-color: #bfd2ff;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .core-tech-grid {
    grid-template-columns: 1fr;
  }

  .card-grid.three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .compare-table {
    min-width: 700px;
  }

  .principle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .compare-highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demand-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .compare-focus-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .market-scheme-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nn-top {
    grid-template-columns: 1fr;
  }

  .compare-lane {
    grid-template-columns: 1fr;
  }

  .lane-card,
  .lane-dim,
  .lane-head {
    width: 100%;
  }

  .production-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nn-diagram {
    flex-direction: column;
    align-items: center;
    gap: 0.42rem;
  }

  .nn-arrow {
    width: auto;
    transform: rotate(90deg);
  }
}

@media (max-width: 760px) {
  .container {
    width: min(var(--maxw), calc(100% - 1.6rem));
  }

  .topbar-inner {
    min-height: 66px;
  }

  .menu-btn {
    display: inline-flex;
  }

  .nav,
  .cta-mini {
    display: none;
  }

  .mobile-nav {
    display: block;
    border-top: 1px solid #d8e2ff;
    background: rgba(250, 252, 255, 0.96);
  }

  .mobile-nav .container {
    padding: 0.7rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
  }

  .mobile-nav a {
    border: 1px solid #d6e2ff;
    border-radius: 999px;
    min-width: 5.1rem;
    text-align: center;
    padding: 0.24rem 0.7rem;
    font-size: 0.85rem;
    color: #284a84;
  }

  .brand {
    font-size: 1.04rem;
  }

  .market-scheme-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.6rem 0 2.6rem;
  }

  .section {
    padding: 3rem 0;
  }

  .card-grid,
  .card-grid.three {
    grid-template-columns: 1fr;
  }

  .principle-grid {
    grid-template-columns: 1fr;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }

  .compare-table {
    min-width: 640px;
  }

  .compare-table th,
  .compare-table td {
    font-size: 0.84rem;
    padding: 0.65rem;
  }

  .compare-highlight-grid {
    grid-template-columns: 1fr;
  }

  .demand-grid {
    grid-template-columns: 1fr;
  }

  .compare-focus-grid {
    grid-template-columns: 1fr;
  }

  .production-grid {
    grid-template-columns: 1fr;
  }
}