/* ========== Design Tokens ========== */
:root {
  --bg-dark: #0a0f1a;
  --bg-dark-2: #0d1320;
  --bg-card-dark: #141b2a;
  --bg-light: #ffffff;
  --bg-muted: #f5f7fa;
  --text-dark: #1a1f2e;
  --text-muted: #6b7280;
  --text-light: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.65);
  --orange: #f5a623;
  --orange-deep: #e88a1a;
  --teal: #2ec4b6;
  --amber: #c97b3a;
  --border-dark: rgba(255, 255, 255, 0.1);
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --max: 1120px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse 640px 220px at 0% 0%, rgba(8, 12, 22, 0.9) 0%, rgba(8, 12, 22, 0.5) 45%, transparent 72%),
    linear-gradient(180deg, rgba(8, 12, 22, 0.72) 0%, rgba(8, 12, 22, 0.55) 28%, rgba(8, 12, 22, 0.62) 48%, rgba(8, 12, 22, 0.82) 68%, rgba(8, 12, 22, 0.94) 86%, rgba(8, 12, 22, 0.98) 100%),
    url("../assets/images/hero-bg.jpg?v=20260721b") center center / cover no-repeat;
  color: var(--text-light);
  overflow: hidden;
}

.nav {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(20px, 4vw, 48px);
}

/* Language switcher */
.lang-switch {
  position: relative;
  z-index: 20;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-end: 0;
  min-width: 168px;
  padding: 8px;
  border-radius: 12px;
  background: #0f1524;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lang-menu[hidden] {
  display: none;
}

.lang-option {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-option:hover,
.lang-option.is-active {
  background: rgba(245, 166, 35, 0.16);
  color: #fff;
}

/* RTL */
html[dir="rtl"] .arch-arrow {
  transform: scaleX(-1);
}

html[dir="rtl"] .geo-summary {
  border-left: none;
  border-right: 3px solid var(--orange);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.logo {
  position: relative;
  z-index: 11;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border-radius: 999px;
  background: rgba(8, 12, 22, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #fff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.22);
}

.logo-icon {
  display: inline-flex;
  width: 22px;
  height: 22px;
  color: #fff;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.hero-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  padding: 40px 20px clamp(96px, 16vh, 160px);
}

.hero-badge {
  width: 64px;
  height: 64px;
  margin-bottom: 28px;
  animation: fadeUp 0.7s ease both;
}

.hero-badge svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 8px 24px rgba(245, 166, 35, 0.45));
}

.hero-title {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
  animation: fadeUp 0.7s 0.1s ease both;
}

.hero-desc {
  max-width: 640px;
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 36px;
  animation: fadeUp 0.7s 0.2s ease both;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  animation: fadeUp 0.7s 0.3s ease both;
}

.cta-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.cta-pill:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.14);
}

.cta-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.cta-orange {
  box-shadow: 0 0 0 1px rgba(245, 166, 35, 0.35), 0 0 28px rgba(245, 166, 35, 0.25);
}
.cta-orange .cta-dot { background: var(--orange); }

.cta-teal {
  box-shadow: 0 0 0 1px rgba(46, 196, 182, 0.35), 0 0 28px rgba(46, 196, 182, 0.22);
}
.cta-teal .cta-dot { background: var(--teal); }

.cta-amber {
  box-shadow: 0 0 0 1px rgba(201, 123, 58, 0.4), 0 0 28px rgba(201, 123, 58, 0.22);
}
.cta-amber .cta-dot { background: var(--amber); }

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: min(100% - 40px, var(--max));
  margin: 0 auto 48px;
  padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  animation: fadeUp 0.7s 0.4s ease both;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-dim);
}

/* ========== Sections ========== */
.section {
  padding: clamp(56px, 8vw, 96px) 0;
}

.section-tight {
  padding-top: clamp(40px, 5vw, 64px);
}

.section-light {
  background: var(--bg-light);
}

.section-muted {
  background: var(--bg-muted);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-light);
}

.section-head {
  text-align: center;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.section-head h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 520px;
  margin-inline: auto;
}

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

.section-head-dark p {
  color: var(--text-dim);
}

.tag-orange {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(245, 166, 35, 0.18);
  color: var(--orange);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

/* ========== Hardware ========== */
.hardware-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.hw-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  transition: transform 0.45s ease;
}

.hw-card:hover .hw-img {
  transform: scale(1.04);
}

.hw-card {
  background: var(--bg-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hw-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

.hw-body {
  position: relative;
  padding: 28px 24px 24px;
}

.hw-icon {
  position: absolute;
  top: -18px;
  left: 24px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hw-icon svg {
  width: 18px;
  height: 18px;
}

.hw-icon-yellow { background: #f5a623; }
.hw-icon-green { background: #34c759; }
.hw-icon-blue { background: #3b82f6; }
.hw-icon-orange { background: #f97316; }
.hw-icon-purple { background: #8b5cf6; }
.hw-icon-red { background: #ef4444; }

.hw-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.hw-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Drone ========== */
.drone-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.drone-tab {
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-dim);
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
  transition: all 0.25s ease;
}

.drone-tab:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.drone-tab.active {
  color: #fff;
  border-color: var(--orange);
  background: rgba(245, 166, 35, 0.15);
  box-shadow: 0 0 20px rgba(245, 166, 35, 0.2);
}

/* ========== Mission video player ========== */
.mission-player {
  margin: 0 auto 48px;
  max-width: 920px;
}

.mission-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border-dark);
  background: #070b14;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.mission-slides {
  position: absolute;
  inset: 0;
}

.mission-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 0.9s ease, transform 3.4s ease;
}

.mission-slide.active {
  opacity: 1;
  transform: scale(1);
  z-index: 1;
}

.mission-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.12);
  z-index: 5;
}

.mission-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f5a623, #ffd27a);
  transition: width 0.25s linear;
}

.mission-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  display: flex;
  align-items: flex-end;
  gap: 14px;
  padding: 48px 22px 20px;
  background: linear-gradient(180deg, transparent, rgba(6, 10, 18, 0.92));
  pointer-events: none;
}

.mission-step {
  flex-shrink: 0;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--orange);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 4px;
}

.mission-caption strong {
  display: block;
  font-size: clamp(18px, 2.5vw, 26px);
  margin-bottom: 4px;
}

.mission-caption p {
  font-size: 13px;
  color: var(--text-dim);
}

.mission-play {
  position: absolute;
  right: 16px;
  bottom: 18px;
  z-index: 6;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.95);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4);
  transition: transform 0.2s ease, background 0.2s ease;
}

.mission-play:hover {
  transform: scale(1.06);
  background: var(--orange-deep);
}

.mission-play svg {
  width: 22px;
  height: 22px;
}

.mission-play.is-playing .icon-play { display: none; }
.mission-play.is-playing .icon-pause { display: block; }
.mission-play:not(.is-playing) .icon-pause { display: none; }

.mission-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  padding: 0 4px;
}

.mission-meta p {
  font-size: 13px;
  color: var(--text-dim);
}

.mission-download {
  font-size: 13px;
  color: var(--orange);
  border-bottom: 1px solid rgba(245, 166, 35, 0.4);
  transition: color 0.2s ease;
}

.mission-download:hover {
  color: #ffd27a;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 40px;
}

.spec-box {
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-k {
  font-size: 12px;
  color: var(--text-dim);
}

.spec-v {
  font-size: 15px;
  font-weight: 600;
}

.drone-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.drone-feat {
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.drone-feat-img {
  height: 160px;
  background-size: cover;
  background-position: center;
  transition: transform 0.45s ease;
}

.drone-feat:hover .drone-feat-img {
  transform: scale(1.04);
}

.drone-feat h3 {
  font-size: 16px;
  padding: 16px 16px 6px;
}

.drone-feat p {
  font-size: 13px;
  color: var(--text-dim);
  padding: 0 16px 18px;
}

.hangar-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.hangar-img {
  position: relative;
  height: 200px;
  border-radius: var(--radius) var(--radius) 0 0;
  background-size: cover;
  background-position: center;
}

.hangar-num {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 28px;
  font-weight: 800;
  color: var(--orange);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hangar-step {
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.hangar-text {
  padding: 18px 20px 22px;
}

.hangar-text h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.hangar-text p {
  font-size: 13px;
  color: var(--text-dim);
}

/* ========== Tech capabilities ========== */
.tech-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-dark);
}

.tech-hl h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--orange);
}

.tech-hl p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.7;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.cap-card {
  position: relative;
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.cap-card:hover {
  transform: translateY(-3px);
  border-color: rgba(245, 166, 35, 0.35);
}

.cap-num {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.cap-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  transition: transform 0.45s ease;
}

.cap-card:hover .cap-img {
  transform: scale(1.04);
}

.cap-card h3 {
  font-size: 17px;
  padding: 16px 18px 6px;
}

.cap-card p {
  font-size: 13px;
  color: var(--text-dim);
  padding: 0 18px 20px;
  line-height: 1.7;
}

.tag-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tag-pill {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-dark);
  font-size: 13px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.03);
}

/* ========== ERP ========== */
.erp-head {
  max-width: 640px;
  margin-bottom: 36px;
}

.erp-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 14px;
}

.erp-head p {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.erp-layout {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 40px;
}

.erp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: center;
}

.erp-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--orange);
  position: relative;
  margin-top: 2px;
}

.check::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 4px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.erp-list strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

.erp-list span {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

.erp-visual {
  min-height: 280px;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--border-dark);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.erp-partners {
  text-align: center;
}

.erp-partners-label {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.partner-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.partner {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  font-size: 13px;
  font-weight: 500;
}

.btn-ghost {
  display: inline-flex;
  padding: 10px 28px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 14px;
  color: #fff;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.45);
}

/* ========== Scenarios ========== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.scenario-card {
  display: flex;
  gap: 18px;
  align-items: stretch;
  background: var(--bg-muted);
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid rgba(15, 23, 42, 0.05);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.scenario-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.scenario-img {
  flex: 0 0 140px;
  min-height: 120px;
  border-radius: var(--radius-sm);
  background-size: cover;
  background-position: center;
}

.scenario-body {
  flex: 1;
  position: relative;
  padding-right: 8px;
}

.scenario-icon {
  position: absolute;
  top: 0;
  right: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #e8ecf1;
  display: grid;
  place-items: center;
  color: #64748b;
}

.scenario-icon svg {
  width: 16px;
  height: 16px;
}

.scenario-body h3 {
  font-size: 17px;
  margin: 4px 0 8px;
  padding-right: 36px;
}

.scenario-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Architecture ========== */
.arch-card {
  background: var(--bg-light);
  border-radius: 16px;
  padding: clamp(28px, 4vw, 40px);
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.05);
}

.arch-flow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.arch-step {
  flex: 1;
  text-align: center;
  max-width: 200px;
}

.arch-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  color: #fff;
}

.arch-icon svg {
  width: 26px;
  height: 26px;
}

.arch-yellow { background: #f5a623; }
.arch-green { background: #34c759; }
.arch-orange { background: #f97316; }
.arch-pink { background: #ec4899; }

.arch-step h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.arch-step p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
}

.arch-arrow {
  flex-shrink: 0;
  padding-top: 18px;
  font-size: 22px;
  color: #cbd5e1;
  font-weight: 300;
}

/* ========== FAQ / GEO ========== */
.geo-summary {
  max-width: 800px;
  margin: 0 auto 36px;
  padding: 20px 24px;
  background: var(--bg-muted);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.geo-summary p {
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.85;
}

.geo-summary strong {
  color: var(--orange-deep);
  font-weight: 700;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-light);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-sm);
  padding: 0;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.12);
  color: var(--orange-deep);
  font-size: 16px;
  font-weight: 500;
  display: grid;
  place-items: center;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item summary:hover {
  background: rgba(245, 166, 35, 0.06);
}

.faq-item p {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-item a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-meta {
  margin-top: 14px !important;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 10px;
  font-size: 12px !important;
  max-width: none !important;
}

.footer-meta a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

.footer-meta a:hover {
  color: var(--orange);
}

/* ========== CTA ========== */
.cta-section {
  background: #0f1524;
  color: #fff;
  padding: clamp(64px, 9vw, 100px) 0;
  text-align: center;
}

.cta-inner {
  max-width: 640px;
}

.cta-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
}

.cta-icon svg {
  width: 100%;
  height: 100%;
}

.cta-section h2 {
  font-size: clamp(24px, 3.5vw, 34px);
  margin-bottom: 16px;
  font-weight: 700;
}

.cta-section p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 32px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 10px;
  background: var(--orange);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 8px 28px rgba(245, 166, 35, 0.35);
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
  background: var(--orange-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 166, 35, 0.45);
}

/* ========== Footer ========== */
.footer {
  background: #070a12;
  color: rgba(255, 255, 255, 0.55);
  padding: 36px 0;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  margin-bottom: 10px;
}

.footer-brand .logo-icon {
  width: 20px;
  height: 20px;
}

.footer p {
  font-size: 12px;
  line-height: 1.7;
  max-width: 480px;
  margin-inline: auto;
}

/* ========== Animations ========== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .hardware-grid,
  .scenario-grid,
  .cap-grid,
  .hangar-steps {
    grid-template-columns: 1fr;
  }

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

  .drone-features,
  .tech-highlights {
    grid-template-columns: 1fr;
  }

  .erp-layout {
    grid-template-columns: 1fr;
  }

  .erp-visual {
    min-height: 220px;
    order: -1;
  }

  .arch-flow {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .arch-step {
    max-width: 280px;
  }

  .arch-arrow {
    padding-top: 0;
    transform: rotate(90deg);
  }
}

@media (max-width: 640px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 12px;
    margin-bottom: 36px;
  }

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

  .hero-ctas {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
  }

  .cta-pill {
    justify-content: center;
  }

  .scenario-card {
    flex-direction: column;
  }

  .scenario-img {
    flex: none;
    width: 100%;
    height: 160px;
  }

  .hw-img {
    height: 180px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}