/* 亿捷云 · 智能物联网平台 */
:root {
  --ink: #0a1c22;
  --ink-soft: #1e3a42;
  --teal: #0d6e6e;
  --teal-bright: #1a9a96;
  --mint: #3dcdc4;
  --sand: #e8f2f1;
  --fog: #f4f8f8;
  --white: #ffffff;
  --line: rgba(13, 110, 110, 0.14);
  --shadow: 0 24px 60px rgba(10, 28, 34, 0.12);
  --radius: 2px;
  --nav-h: 72px;
  /* 系统字体栈：国内无需外网，优先中易/苹方等本地字体 */
  --font-display: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

/* 英文首屏：避免先闪中文再切换 */
html[data-lang="en"]:not(.i18n-ready) body {
  visibility: hidden;
}

/* 英文界面隐藏指定中文专属联系方式 */
html[data-lang="en"] .js-zh-only {
  display: none !important;
}

html[data-lang="zh"] [data-lang-show="en"],
html[data-lang="en"] [data-lang-show="zh"],
html:not([data-lang]) [data-lang-show="en"] {
  display: none !important;
}

/* 英文站提示条（仅中文首页） */
.lang-hint {
  position: fixed;
  top: calc(var(--nav-h) + 12px);
  right: 20px;
  z-index: 1200;
  max-width: min(380px, calc(100vw - 32px));
  padding: 14px 16px 14px 18px;
  background: rgba(10, 28, 34, 0.96);
  border: 1px solid rgba(61, 205, 196, 0.35);
  color: var(--white);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.lang-hint.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-hint-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(61, 205, 196, 0.45);
  color: var(--mint);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.lang-hint-body {
  flex: 1;
  min-width: 0;
}

.lang-hint-body p {
  margin: 0 0 10px;
  font-size: 0.88rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.82);
}

.lang-hint-body a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--mint);
  letter-spacing: 0.04em;
}

.lang-hint-body a:hover {
  color: var(--white);
}

.lang-hint-close {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}

.lang-hint-close:hover {
  color: var(--white);
}

@media (max-width: 768px) {
  .lang-hint {
    left: 16px;
    right: 16px;
    max-width: none;
  }
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--fog);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

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

.site-header.is-scrolled {
  background: rgba(10, 28, 34, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.site-header.is-light {
  background: rgba(244, 248, 248, 0.94);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--line);
}

.site-header.is-light .logo,
.site-header.is-light .nav-link {
  color: var(--ink);
}

.site-header.is-light .nav-link:hover,
.site-header.is-light .nav-link.is-active {
  color: var(--teal);
}

.site-header.is-light .btn-login {
  border-color: var(--teal);
  color: var(--teal);
}

.site-header.is-light .btn-login:hover {
  background: var(--teal);
  color: var(--white);
}

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

.header-inner {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.logo .logo-sub {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
  font-family: var(--font-body);
}

.logo .logo-sub:empty {
  display: none;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  order: 2;
}

a.lang-btn {
  text-decoration: none;
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 8px 10px;
  cursor: pointer;
  line-height: 1;
  transition: color 0.25s, background 0.25s;
}

.lang-btn:hover {
  color: var(--white);
}

.lang-btn.is-active {
  color: var(--ink);
  background: var(--mint);
}

.site-header.is-light .lang-switch {
  border-color: rgba(13, 110, 110, 0.22);
}

.site-header.is-light .lang-btn {
  color: rgba(10, 28, 34, 0.55);
}

.site-header.is-light .lang-btn:hover {
  color: var(--ink);
}

.site-header.is-light .lang-btn.is-active {
  color: var(--white);
  background: var(--teal);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  padding: 8px 14px;
  transition: color 0.25s;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--white);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.btn-login {
  order: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid rgba(61, 205, 196, 0.55);
  color: var(--mint);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s;
}

.btn-login:hover {
  background: var(--mint);
  color: var(--ink);
  border-color: var(--mint);
  transform: translateY(-1px);
}

.btn-login svg {
  width: 14px;
  height: 14px;
}

.nav-toggle {
  order: 3;
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s;
}

.btn-primary {
  background: var(--mint);
  color: var(--ink);
}

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

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline {
  border-color: var(--teal);
  color: var(--teal);
}

.btn-outline:hover {
  background: var(--teal);
  color: var(--white);
}

.btn-dark {
  background: var(--ink);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--teal);
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 80px) 0 100px;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(26, 154, 150, 0.28), transparent 55%),
    radial-gradient(ellipse 50% 40% at 15% 80%, rgba(13, 110, 110, 0.35), transparent 50%),
    linear-gradient(165deg, #071418 0%, #0a1c22 40%, #0d2e32 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 205, 196, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 205, 196, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, black, transparent);
  animation: gridDrift 28s linear infinite;
}

@keyframes gridDrift {
  from { background-position: 0 0; }
  to { background-position: 64px 64px; }
}

.hero-orb {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  border: 1px solid rgba(61, 205, 196, 0.15);
  right: -80px;
  top: 12%;
  animation: orbPulse 8s ease-in-out infinite;
}

.hero-orb::before,
.hero-orb::after {
  content: "";
  position: absolute;
  inset: 40px;
  border-radius: 50%;
  border: 1px solid rgba(61, 205, 196, 0.1);
}

.hero-orb::after {
  inset: 90px;
  border-color: rgba(61, 205, 196, 0.18);
}

@keyframes orbPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.04); opacity: 1; }
}

.hero-nodes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-nodes i {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 16px var(--mint);
  animation: nodeBlink 3.5s ease-in-out infinite;
}

.hero-nodes i:nth-child(1) { top: 28%; left: 62%; animation-delay: 0s; }
.hero-nodes i:nth-child(2) { top: 42%; left: 78%; animation-delay: 0.7s; }
.hero-nodes i:nth-child(3) { top: 58%; left: 70%; animation-delay: 1.4s; }
.hero-nodes i:nth-child(4) { top: 35%; left: 88%; animation-delay: 2.1s; }

@keyframes nodeBlink {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}

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

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.15s forwards;
}

.hero-brand em {
  display: block;
  font-style: normal;
  font-size: 0.28em;
  font-weight: 500;
  letter-spacing: 0.35em;
  color: var(--mint);
  margin-bottom: 12px;
  font-family: var(--font-body);
}

.hero-title {
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.35s forwards;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: 460px;
  margin-bottom: 40px;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.5s forwards;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.65s forwards;
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-scroll::after {
  content: "";
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--mint), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

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

/* —— Page Hero (inner) —— */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 72px;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 90% 50%, rgba(26, 154, 150, 0.22), transparent 60%),
    linear-gradient(135deg, #071418, #0d2e32);
}

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

.page-hero .eyebrow {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 16px;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.page-hero p {
  max-width: 520px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.02rem;
}

/* —— Sections —— */
.section {
  padding: 100px 0;
}

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

.section-dark {
  background: var(--ink);
  color: var(--white);
}

.section-head {
  max-width: 560px;
  margin-bottom: 56px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 14px;
  font-weight: 500;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.25;
  margin-bottom: 14px;
  color: var(--ink);
}

.section-dark .section-head h2 {
  color: var(--white);
}

.section-head p {
  color: var(--ink-soft);
  opacity: 0.75;
  font-size: 1.02rem;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.55);
}

/* —— Pillars —— */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.pillar {
  background: var(--white);
  padding: 40px 32px;
  transition: background 0.35s;
}

.pillar:hover {
  background: var(--sand);
}

.pillar-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--teal-bright);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.pillar h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.pillar p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  opacity: 0.8;
  line-height: 1.65;
}

/* —— Feature strip —— */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(145deg, #0a1c22 0%, #0d3d42 100%);
  overflow: hidden;
}

.feature-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 205, 196, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 205, 196, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

.feature-visual-inner {
  position: absolute;
  inset: 32px;
  border: 1px solid rgba(61, 205, 196, 0.25);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: var(--white);
}

.feature-visual-inner strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.feature-visual-inner span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

.feature-dots {
  position: absolute;
  top: 28px;
  right: 28px;
  display: flex;
  gap: 8px;
}

.feature-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  opacity: 0.4;
  animation: nodeBlink 2.8s ease-in-out infinite;
}

.feature-dots i:nth-child(2) { animation-delay: 0.5s; }
.feature-dots i:nth-child(3) { animation-delay: 1s; }

.feature-copy h3 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.feature-copy p {
  color: var(--ink-soft);
  opacity: 0.8;
  margin-bottom: 24px;
}

.feature-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 1px;
  background: var(--teal-bright);
}

/* —— Solutions grid —— */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-item {
  position: relative;
  padding: 40px 36px;
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.35s, transform 0.35s;
}

.solution-item:hover {
  border-color: var(--teal-bright);
  transform: translateY(-4px);
}

.solution-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--mint);
  transition: height 0.4s var(--ease);
}

.solution-item:hover::after {
  height: 100%;
}

.solution-tag {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 14px;
}

.solution-item h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.solution-item p {
  font-size: 0.95rem;
  color: var(--ink-soft);
  opacity: 0.8;
}

/* —— Stats —— */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.06em;
}

/* —— Capability cards —— */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cap-item {
  padding: 36px 28px;
  border-top: 2px solid var(--teal);
  background: transparent;
}

.cap-item h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 16px 0 12px;
}

.cap-item p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  opacity: 0.8;
}

.cap-icon {
  width: 40px;
  height: 40px;
  color: var(--teal-bright);
}

.cap-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* —— Multi-client channels —— */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.channel-item {
  padding: 28px 22px;
  border-top: 2px solid var(--teal);
  background: transparent;
}

.channel-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.channel-item p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  opacity: 0.8;
  line-height: 1.65;
}

.channel-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 12px;
}

/* —— AI model tags —— */
.ai-models {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
}

.ai-models li {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--teal);
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--sand);
}

#ai-title {
  scroll-margin-top: calc(var(--nav-h) + 24px);
}

#multi-client {
  scroll-margin-top: calc(var(--nav-h) + 8px);
}

/* —— Timeline / about —— */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.about-aside {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

.about-aside h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
  line-height: 1.3;
}

.about-aside p {
  color: var(--ink-soft);
  opacity: 0.8;
  margin-bottom: 28px;
}

.about-body h3 {
  font-size: 1.15rem;
  margin: 32px 0 12px;
  color: var(--teal);
}

.about-body h3:first-child {
  margin-top: 0;
}

.about-body p {
  color: var(--ink-soft);
  opacity: 0.85;
  margin-bottom: 12px;
}

.about-body ul {
  margin: 12px 0 20px;
}

.about-body li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  color: var(--ink-soft);
  opacity: 0.85;
  font-size: 0.95rem;
}

.about-body li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--teal-bright);
}

.brand-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0 8px;
}

.brand-card {
  padding: 20px 22px;
  border-top: 2px solid var(--teal);
  background: var(--fog);
}

.brand-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.brand-card dl {
  margin: 0;
}

.brand-card dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--teal-bright);
  margin-bottom: 4px;
}

.brand-card dd {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink);
  margin: 0 0 14px;
}

.brand-card dd:last-child {
  margin-bottom: 0;
}

/* —— Contact —— */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-block h3 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 8px;
}

.contact-block p,
.contact-block a {
  font-size: 1.1rem;
  color: var(--ink);
}

.contact-block a:hover {
  color: var(--teal);
}

.contact-panel {
  background: var(--ink);
  color: var(--white);
  padding: 48px 40px;
}

.contact-panel h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.contact-panel .btn {
  width: 100%;
}

/* —— CTA banner —— */
.cta-banner {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(120deg, #0a1c22 0%, #0d4a4a 50%, #0a1c22 100%);
  color: var(--white);
  overflow: hidden;
  text-align: center;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 205, 196, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 205, 196, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

.cta-banner .container {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 32px;
  max-width: 440px;
  margin-inline: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* —— Footer —— */
.site-footer {
  background: #061014;
  color: rgba(255, 255, 255, 0.55);
  padding: 64px 0 32px;
  font-size: 0.88rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.footer-brand > span:last-child {
  display: block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 6px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  margin-bottom: 10px;
  transition: color 0.25s;
}

.footer-col a:hover {
  color: var(--mint);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
}

.footer-bottom a:hover {
  color: var(--mint);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}

.footer-legal-links a {
  color: rgba(255, 255, 255, 0.45);
}

.footer-legal-links a:hover {
  color: var(--mint);
}

/* —— Legal / Privacy —— */
.legal-content {
  max-width: 820px;
  margin: 0 auto;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
  opacity: 0.75;
  margin-bottom: 36px;
}

.legal-content h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--teal);
  margin: 36px 0 14px;
  letter-spacing: 0.02em;
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content h3 {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  margin: 22px 0 10px;
}

.legal-content p,
.legal-content li {
  color: var(--ink-soft);
  opacity: 0.88;
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 12px;
}

.legal-content ul {
  margin: 8px 0 20px;
  padding-left: 0;
  list-style: none;
}

.legal-content li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
}

.legal-content li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--teal-bright);
}

.legal-content a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-content a:hover {
  color: var(--teal-bright);
}

/* —— Reveal —— */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* —— Breadcrumb —— */
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 24px;
}

.breadcrumb a:hover {
  color: var(--mint);
}

.breadcrumb span {
  margin: 0 8px;
  opacity: 0.5;
}

/* —— Mobile —— */
@media (max-width: 960px) {
  .pillars,
  .stats,
  .cap-grid,
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-row,
  .feature-row.reverse,
  .about-layout,
  .contact-grid,
  .footer-top {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 40px;
  }

  .about-aside {
    position: static;
  }

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

  .brand-matrix {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .lang-btn {
    padding: 8px;
    font-size: 0.72rem;
  }

  .btn-login {
    padding: 10px 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10, 28, 34, 0.97);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    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 {
    width: 100%;
    padding: 14px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-header.is-light .nav {
    background: rgba(244, 248, 248, 0.98);
  }

  .pillars,
  .stats,
  .cap-grid,
  .channel-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: center;
    padding-bottom: 80px;
  }

  .hero-orb {
    width: 300px;
    height: 300px;
    opacity: 0.5;
  }

  .section {
    padding: 72px 0;
  }

  .footer-bottom {
    flex-direction: column;
  }
}