/* 北京冠普通盈网络科技有限公司 — 门户样式 */

:root {
  --ink: #0c1524;
  --ink-soft: #162235;
  --ink-muted: #3d4f63;
  --paper: #eef2f6;
  --surface: #ffffff;
  --line: rgba(12, 21, 36, 0.1);
  --line-strong: rgba(12, 21, 36, 0.18);
  --accent: #0f8a7e;
  --accent-deep: #0a6b62;
  --accent-soft: rgba(15, 138, 126, 0.12);
  --signal: #1a6f9b;
  --mist: #c5d0db;
  --hero-top: #071018;
  --hero-mid: #0e2233;
  --hero-end: #123447;
  --shadow: 0 18px 50px rgba(12, 21, 36, 0.08);
  --radius: 2px;
  --nav-h: 72px;
  --max: 1120px;
  --font-display: "Barlow", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Barlow", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 2.5rem, 1280px);
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease), backdrop-filter 0.35s;
}

.site-header.is-scrolled,
.site-header.is-solid {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}

.site-header.is-scrolled .brand-name,
.site-header.is-scrolled .nav-link,
.site-header.is-solid .brand-name,
.site-header.is-solid .nav-link {
  color: var(--ink);
}

.site-header.is-scrolled .brand-mark,
.site-header.is-solid .brand-mark {
  border-color: var(--accent);
  color: var(--accent);
}

.site-header.is-scrolled .nav-toggle span,
.site-header.is-solid .nav-toggle span {
  background: var(--ink);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  transition: border-color 0.3s, color 0.3s;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: #fff;
  white-space: nowrap;
  transition: color 0.3s;
}

.brand-sub {
  font-size: 0.68rem;
  color: var(--mist);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header.is-scrolled .brand-sub,
.site-header.is-solid .brand-sub {
  color: var(--ink-muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.25s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: #fff;
}

.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.is-active,
.site-header.is-solid .nav-link:hover,
.site-header.is-solid .nav-link.is-active {
  color: var(--ink);
}

.nav-link.is-active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: 0.75rem;
  padding: 0.55rem 1.1rem;
  background: var(--accent);
  color: #fff !important;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.25s, transform 0.25s;
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
  transition: transform 0.3s, opacity 0.3s, background 0.3s;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 2rem) 0 5rem;
  color: #fff;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(26, 111, 155, 0.35), transparent 55%),
    radial-gradient(ellipse 50% 40% at 15% 80%, rgba(15, 138, 126, 0.22), transparent 50%),
    linear-gradient(155deg, var(--hero-top) 0%, var(--hero-mid) 48%, var(--hero-end) 100%);
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000 30%, transparent 95%);
  animation: grid-drift 28s linear infinite;
  pointer-events: none;
}

@keyframes grid-drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(64px);
  }
}

.hero-beam {
  position: absolute;
  width: 140%;
  height: 1px;
  left: -20%;
  top: 42%;
  background: linear-gradient(90deg, transparent, rgba(15, 138, 126, 0.55), transparent);
  transform: rotate(-12deg);
  animation: beam-pulse 4.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes beam-pulse {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.9;
  }
}

.hero-visual {
  position: absolute;
  right: -8%;
  bottom: 8%;
  width: min(58vw, 720px);
  height: min(58vw, 720px);
  pointer-events: none;
  opacity: 0.55;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.hero-brand {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.5vw, 4.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.06em;
  opacity: 0;
  transform: translateY(28px);
  animation: rise 0.9s var(--ease) 0.15s forwards;
}

.hero-title {
  margin: 0 0 1rem;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.92);
  opacity: 0;
  transform: translateY(28px);
  animation: rise 0.9s var(--ease) 0.35s forwards;
}

.hero-desc {
  margin: 0 0 2rem;
  max-width: 32rem;
  font-size: 1.02rem;
  color: rgba(255, 255, 255, 0.68);
  opacity: 0;
  transform: translateY(28px);
  animation: rise 0.9s var(--ease) 0.5s forwards;
}

.hero .btn-group {
  opacity: 0;
  transform: translateY(28px);
  animation: rise 0.9s var(--ease) 0.65s forwards;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-scroll {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  0% {
    transform: scaleY(0);
    transform-origin: top;
    opacity: 0;
  }
  40% {
    transform: scaleY(1);
    transform-origin: top;
    opacity: 1;
  }
  100% {
    transform: scaleY(1);
    transform-origin: bottom;
    opacity: 0;
  }
}

/* —— Page hero (inner) —— */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 4.5rem) 0 4rem;
  color: #fff;
  background:
    radial-gradient(ellipse 60% 80% at 85% 30%, rgba(15, 138, 126, 0.25), transparent 55%),
    linear-gradient(145deg, var(--hero-top), var(--hero-mid) 60%, #164056);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.7;
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-kicker {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-lead {
  margin: 0;
  max-width: 36rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
}

/* —— Sections —— */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--surface);
}

.section-head {
  margin-bottom: 2.75rem;
  max-width: 40rem;
}

.section-kicker {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.25;
}

.section-desc {
  margin: 0;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* —— Home: capabilities strip —— */
.cap-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cap-item {
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--line);
  background: var(--surface);
  transition: background 0.3s;
}

.cap-item:last-child {
  border-right: 0;
}

.cap-item:hover {
  background: var(--accent-soft);
}

.cap-index {
  display: block;
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.cap-item h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.cap-item p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

/* —— About preview —— */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}

.split-visual {
  position: relative;
  min-height: 380px;
  background:
    linear-gradient(160deg, rgba(15, 138, 126, 0.15), transparent 45%),
    linear-gradient(25deg, var(--ink) 0%, #1a3a4f 100%);
  overflow: hidden;
}

.split-visual::after {
  content: "";
  position: absolute;
  inset: 12% 12% auto auto;
  width: 55%;
  height: 55%;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.split-visual-label {
  position: absolute;
  left: 1.5rem;
  bottom: 1.5rem;
  z-index: 1;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.split-visual-nodes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.split-copy .section-title {
  margin-bottom: 1rem;
}

.split-copy p {
  margin: 0 0 1rem;
  color: var(--ink-muted);
}

.split-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.stat span {
  font-size: 0.82rem;
  color: var(--ink-muted);
}

/* —— News list —— */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  display: grid;
  grid-template-columns: 7.5rem 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left 0.3s var(--ease);
}

.news-item:first-child {
  border-top: 1px solid var(--line);
}

.news-item:hover {
  padding-left: 0.5rem;
}

.news-date {
  font-family: var(--font-display);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.news-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.08rem;
  font-weight: 600;
}

.news-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.news-tag {
  font-size: 0.78rem;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.section-action {
  margin-top: 2rem;
}

/* —— CTA band —— */
.cta-band {
  position: relative;
  padding: 4.5rem 0;
  color: #fff;
  background:
    radial-gradient(ellipse 50% 80% at 0% 50%, rgba(15, 138, 126, 0.35), transparent 60%),
    linear-gradient(120deg, var(--ink) 0%, #143247 100%);
  overflow: hidden;
}

.cta-band-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-band h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cta-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.65);
  max-width: 28rem;
}

/* —— Business page —— */
.biz-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.biz-row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
}

.biz-row:first-child {
  border-top: 1px solid var(--line);
}

.biz-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  line-height: 1;
}

.biz-body h3 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 600;
}

.biz-body p {
  margin: 0 0 1.1rem;
  color: var(--ink-muted);
  max-width: 42rem;
}

.biz-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.biz-tags span {
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
}

/* —— About page —— */
.timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 1px;
  background: var(--line-strong);
}

.timeline li {
  position: relative;
  padding: 0 0 2rem 2.5rem;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 0.3rem;
  top: 0.45rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--accent);
  border-radius: 50%;
}

.timeline-year {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.timeline h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.timeline p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.value-block {
  padding: 1.75rem 0 0;
  border-top: 2px solid var(--ink);
}

.value-block h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}

.value-block p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* —— Contact —— */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info dt {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-display);
}

.contact-info dd {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

.contact-form {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.form-row {
  margin-bottom: 1.15rem;
}

.form-row label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  outline: none;
  transition: border-color 0.25s, background 0.25s;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--accent);
  background: #fff;
}

.form-row textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  margin: 0.85rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.form-success {
  display: none;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 0.92rem;
}

.form-success.is-show {
  display: block;
}

/* —— Footer —— */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  padding: 3.5rem 0 1.75rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand-name {
  color: #fff;
  font-size: 1.15rem;
}

.footer-brand p {
  margin: 0.85rem 0 0;
  max-width: 22rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h4 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #fff;
}

.footer-col a {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.25s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.5rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* —— Responsive —— */
@media (max-width: 960px) {
  .cap-list {
    grid-template-columns: 1fr 1fr;
  }

  .cap-item:nth-child(2) {
    border-right: 0;
  }

  .cap-item:nth-child(3),
  .cap-item:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .split,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .split-visual {
    min-height: 280px;
  }

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

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

  .hero-visual {
    opacity: 0.28;
    right: -20%;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 12px 30px rgba(12, 21, 36, 0.12);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link,
  .site-header.is-scrolled .nav-link,
  .site-header.is-solid .nav-link {
    color: var(--ink);
    padding: 0.85rem 0.25rem;
  }

  .nav-link::after {
    left: 0.25rem;
    right: auto;
    width: 1.5rem;
    bottom: 0.55rem;
  }

  .nav-cta {
    margin: 0.5rem 0 0;
    text-align: center;
  }

  .brand-sub {
    display: none;
  }

  .cap-list {
    grid-template-columns: 1fr;
  }

  .cap-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .cap-item:last-child {
    border-bottom: 0;
  }

  .cap-item:nth-child(3),
  .cap-item:nth-child(4) {
    border-top: 0;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .biz-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .split-stats {
    grid-template-columns: 1fr;
  }

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

  .hero {
    align-items: center;
    padding-bottom: 6rem;
  }

  .hero-visual {
    display: none;
  }
}