:root {
    --bg: #ffffff;
    --bg-soft: #f2f4f7;
    --line: #d6dde8;
    --line-strong: #b9c4d4;
    --text: #10141d;
    --text-soft: #4b5567;
    --primary: #0f6fff;
    --primary-strong: #004bc5;
    --primary-soft: #edf4ff;
    --accent: #38d7ff;
    --font-cn: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-ui: "IBM Plex Sans", "Noto Sans SC", sans-serif;
    --font-mono: "IBM Plex Mono", "Menlo", monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-cn);
    color: var(--text);
    background: linear-gradient(180deg, #ffffff 0%, #f8faff 35%, #ffffff 100%);
    line-height: 1.6;
}

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

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

.shell {
    width: min(1460px, calc(100% - 3rem));
    margin: 0 auto;
}

.section {
    padding: 96px 0;
    border-top: 1px solid var(--line);
}

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

.eyebrow {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.12em;
    color: var(--primary-strong);
}

.section-head {
    margin-bottom: 38px;
    position: relative;
}

.section-head::after {
    content: "";
    display: block;
    width: 72px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    margin-top: 16px;
}

.section-head h2 {
    margin: 10px 0 0;
    font-family: var(--font-ui);
    font-size: clamp(2rem, 1.2rem + 2.2vw, 3.4rem);
    line-height: 1.12;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #0f141c;
}

.section-subtitle {
    margin: 14px 0 0;
    color: var(--text-soft);
    max-width: 820px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.93);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(10px);
}

.nav-wrap {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-ui);
    font-weight: 700;
    font-size: 1.46rem;
    color: #0f1724;
}

.brand-mark {
    width: 13px;
    height: 13px;
    border: 2px solid var(--primary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-nav a {
    position: relative;
    color: #3f4d63;
    font-family: var(--font-ui);
    font-size: 0.94rem;
    font-weight: 500;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
    color: #0f1826;
}

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

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line-strong);
    background: #fff;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 18px;
    height: 2px;
    background: #1f2938;
    display: block;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: 1px solid transparent;
    font-family: var(--font-ui);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--primary-strong);
    border-color: var(--primary-strong);
}

.btn-secondary {
    background: #fff;
    border-color: var(--line-strong);
    color: #1d2b43;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary-strong);
}

.hero {
    border-top: 0;
    padding: 88px 0 58px;
    min-height: calc(100vh - 76px);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    left: -10%;
    top: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 30% 20%, rgba(15, 111, 255, 0.14), rgba(15, 111, 255, 0));
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    right: -8%;
    top: 12%;
    width: 56%;
    height: 60%;
    border: 1px solid rgba(56, 215, 255, 0.18);
    pointer-events: none;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-company {
    margin: 10px 0 0;
    color: #2f3f58;
    font-size: 1.02rem;
    font-weight: 600;
}

.hero-copy h1 {
    margin: 14px 0 0;
    font-family: var(--font-ui);
    line-height: 0.98;
    letter-spacing: -0.02em;
}

.hero-copy h1 span {
    display: block;
    font-size: clamp(2rem, 1.5rem + 2.1vw, 3.9rem);
    color: #121a26;
    font-weight: 600;
}

.hero-copy h1 strong {
    display: block;
    margin-top: 8px;
    font-size: clamp(2.3rem, 1.65rem + 2.5vw, 4.5rem);
    color: #0d1724;
    font-weight: 700;
}

.hero-subtitle {
    margin: 22px 0 0;
    color: var(--text-soft);
    max-width: 94%;
    font-size: 1.04rem;
}

.hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-stage {
    position: relative;
    min-height: 560px;
    border: 1px solid var(--line-strong);
    overflow: hidden;
    background: #dfe8f7;
}

.hero-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.06) 0,
        rgba(255, 255, 255, 0.06) 1px,
        transparent 1px,
        transparent 48px
    );
    z-index: 1;
    animation: heroSweep 7s linear infinite;
    pointer-events: none;
}

.hero-stage::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(7, 16, 33, 0.56), rgba(7, 16, 33, 0.08));
    pointer-events: none;
    z-index: 2;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.08);
    transition: opacity 1.1s ease, transform 6s linear;
}

.hero-slide.is-active {
    opacity: 1;
    transform: scale(1);
}

.hero-stage-info {
    position: absolute;
    left: 24px;
    bottom: 24px;
    z-index: 3;
    color: #fff;
    display: grid;
    gap: 6px;
    border-left: 3px solid var(--accent);
    padding-left: 14px;
}

.hero-stage-info p,
.hero-stage-info strong,
.hero-stage-info span {
    margin: 0;
}

.hero-stage-info p {
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #d7e8ff;
}

.hero-stage-info strong {
    font-size: 1.7rem;
    font-family: var(--font-ui);
    line-height: 1.05;
}

.hero-stage-info span {
    font-size: 0.9rem;
    color: #d9e9ff;
}

.hero-stage-controls {
    position: absolute;
    right: 20px;
    bottom: 24px;
    z-index: 3;
    display: grid;
    gap: 8px;
}

.hero-control {
    width: 44px;
    height: 4px;
    border: 0;
    background: rgba(255, 255, 255, 0.36);
    cursor: pointer;
    padding: 0;
}

.hero-control.is-active {
    background: var(--accent);
}

.metrics-strip {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.88);
}

.metric-item {
    padding: 18px 16px;
}

.metric-item + .metric-item {
    border-left: 1px solid var(--line);
}

.metric-value {
    margin: 0;
    font-family: var(--font-ui);
    font-weight: 700;
    color: #0f1724;
    line-height: 1.04;
    font-size: 2rem;
}

.metric-label {
    margin: 8px 0 0;
    font-size: 0.86rem;
    color: var(--text-soft);
}

.hero-ribbon {
    margin-top: 16px;
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    background: #0f1724;
    color: #dce9ff;
    overflow: hidden;
    white-space: nowrap;
}

.hero-ribbon-track {
    display: inline-flex;
    align-items: center;
    gap: 30px;
    min-width: 200%;
    padding: 12px 0;
    font-family: var(--font-ui);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    animation: ribbonMove 20s linear infinite;
}

.hero-ribbon-track span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.hero-ribbon-track span::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--accent);
}

.drone-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 24px;
    align-items: start;
}

.drone-menu {
    border-top: 1px solid var(--line-strong);
    border-left: 1px solid var(--line-strong);
    border-right: 1px solid var(--line-strong);
    background: #fff;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    scrollbar-width: none;
}

.drone-menu::-webkit-scrollbar {
    width: 0;
    height: 0;
}

.drone-item {
    width: 100%;
    text-align: left;
    border: 0;
    border-bottom: 1px solid var(--line-strong);
    background: #fff;
    padding: 18px 16px;
    font-family: var(--font-cn);
    font-size: 1.04rem;
    color: #1a2638;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.drone-item span {
    display: block;
    font-size: 0.84rem;
    color: var(--text-soft);
    margin-top: 6px;
    font-weight: 400;
}

.drone-item:hover {
    background: #f7faff;
}

.drone-item.is-active {
    background: var(--primary-soft);
    color: #0f1827;
}

.drone-stage {
    border: 1px solid var(--line-strong);
    background: #fff;
}

.drone-stage-media {
    border-bottom: 1px solid var(--line-strong);
    background: #eaf1fb;
    position: relative;
}

.drone-stage-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8, 16, 31, 0.4), rgba(8, 16, 31, 0));
    pointer-events: none;
}

.drone-stage-media img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.drone-stage-copy {
    padding: 18px;
}

.drone-stage-copy h3 {
    margin: 0;
    font-family: var(--font-ui);
    font-size: 1.6rem;
    color: #101620;
}

.drone-stage-copy p {
    margin: 12px 0 0;
    color: var(--text-soft);
}

.drone-kpis {
    margin-top: 16px;
    border-top: 1px solid var(--line);
}

.drone-kpis p {
    margin: 0;
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
    color: #2f4058;
}

.drone-kpis span {
    color: #0f1724;
    font-weight: 700;
    font-family: var(--font-ui);
}

.solutions-overview {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 18px;
    border: 1px solid var(--line-strong);
    background: #fff;
}

.solutions-overview-media img {
    width: 100%;
    height: 100%;
    min-height: 280px;
    object-fit: cover;
}

.solutions-overview-copy {
    padding: 22px 20px;
}

.solutions-overview-copy p {
    margin: 0;
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.78;
}

.solutions-overview-copy ul {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

.solutions-overview-copy li {
    padding: 10px 14px;
    color: #2a3a50;
    border-left: 2px solid rgba(15, 111, 255, 0.45);
    background: linear-gradient(90deg, rgba(15, 111, 255, 0.08), rgba(15, 111, 255, 0));
}

.copy-highlight {
    display: inline-block;
    padding: 0 6px;
    margin: 0 2px;
    color: #003f9f;
    font-weight: 700;
    background: linear-gradient(180deg, rgba(15, 111, 255, 0), rgba(15, 111, 255, 0.16));
}

.solution-lines {
    margin-top: 18px;
    border-top: 1px solid var(--line-strong);
}

.solution-row {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--line-strong);
}

.solution-code {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary-strong);
}

.solution-row h3 {
    margin: 8px 0 0;
    font-family: var(--font-ui);
    font-size: 1.66rem;
    line-height: 1.2;
    color: #0f1724;
}

.solution-main {
    display: grid;
    grid-template-columns: 0.45fr 0.55fr;
    gap: 18px;
}

.solution-media {
    margin: 0;
    border: 1px solid var(--line-strong);
    background: #edf3fb;
}

.solution-media img {
    width: 100%;
    min-height: 250px;
    object-fit: cover;
}

.solution-media figcaption {
    margin: 0;
    padding: 10px 12px;
    border-top: 1px solid var(--line);
    color: #32435c;
    font-size: 0.84rem;
}

.solution-detail p {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.75;
}

.solution-detail ul {
    margin: 14px 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

.solution-detail li {
    padding: 10px 14px;
    color: #27364a;
    border-left: 2px solid rgba(15, 111, 255, 0.45);
    background: linear-gradient(90deg, rgba(15, 111, 255, 0.08), rgba(15, 111, 255, 0));
}

.result-line {
    margin-top: 2px;
    color: #1e2f49;
    font-weight: 500;
    padding: 10px 12px;
    border-left: 3px solid #0f6fff;
    background: linear-gradient(90deg, rgba(15, 111, 255, 0.11), rgba(15, 111, 255, 0.01));
}

.result-tag {
    display: inline-flex;
    align-items: center;
    margin-right: 8px;
    padding: 2px 8px;
    font-family: var(--font-ui);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #003f9f;
    border: 1px solid rgba(15, 111, 255, 0.3);
    background: rgba(15, 111, 255, 0.1);
}

.solution-stats {
    margin-top: 14px;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.solution-stats div {
    padding: 10px 10px 0 0;
}

.solution-stats div + div {
    border-left: 1px solid var(--line);
    padding-left: 12px;
}

.solution-stats strong {
    display: block;
    font-family: var(--font-ui);
    color: #101620;
    font-size: 1.14rem;
    line-height: 1.1;
}

.solution-stats span {
    color: var(--text-soft);
    font-size: 0.78rem;
}

.solutions-gallery {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.solutions-gallery figure {
    margin: 0;
    border: 1px solid var(--line-strong);
    background: #fff;
}

.solutions-gallery img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.solutions-gallery figcaption {
    padding: 10px 11px;
    border-top: 1px solid var(--line);
    color: #344762;
    font-size: 0.82rem;
}

.immersive-band {
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
}

.immersive-media {
    position: relative;
    min-height: 62vh;
    background-size: cover;
    background-position: center;
}

.immersive-media::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10, 17, 29, 0.82), rgba(10, 17, 29, 0.35), rgba(10, 17, 29, 0.85));
}

.immersive-overlay {
    position: relative;
    z-index: 1;
    color: #f2f7ff;
    min-height: 62vh;
    display: grid;
    align-content: center;
    max-width: 820px;
}

.immersive-overlay .eyebrow {
    color: #9ed4ff;
}

.immersive-overlay h2 {
    margin: 10px 0 0;
    font-family: var(--font-ui);
    font-size: clamp(2rem, 1.3rem + 2vw, 3.4rem);
    line-height: 1.08;
    letter-spacing: -0.01em;
}

.immersive-overlay p {
    margin: 16px 0 0;
    color: #d4e6ff;
}

.immersive-kpis {
    margin-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.immersive-kpis div {
    padding: 12px 6px 12px 0;
}

.immersive-kpis div + div {
    border-left: 1px solid rgba(255, 255, 255, 0.24);
    padding-left: 12px;
}

.immersive-kpis strong {
    display: block;
    font-family: var(--font-ui);
    font-size: 1.6rem;
    line-height: 1.06;
}

.immersive-kpis span {
    color: #cae3ff;
    font-size: 0.82rem;
}

.industry-visual-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.industry-visual {
    margin: 0;
    border: 1px solid var(--line-strong);
    position: relative;
    overflow: hidden;
    background: #dce5f1;
}

.industry-visual img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.industry-visual figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 14px 14px 12px;
    background: linear-gradient(0deg, rgba(9, 17, 30, 0.82), rgba(9, 17, 30, 0.05));
    color: #ecf3ff;
    display: grid;
    gap: 5px;
    min-height: 94px;
}

.industry-visual:hover img {
    transform: scale(1.035);
}

.industry-visual strong {
    font-family: var(--font-ui);
    font-size: 1.02rem;
    letter-spacing: 0.01em;
}

.industry-visual span {
    color: #ccdcf3;
    font-size: 0.82rem;
    line-height: 1.45;
}

.industry-table {
    border: 1px solid var(--line-strong);
    border-bottom: 0;
    background: #fff;
}

.table-head,
.table-row {
    display: grid;
    grid-template-columns: 0.8fr 1.1fr 1.2fr 1fr;
}

.table-head {
    background: #eef2f7;
    color: #1e2c43;
    font-size: 0.86rem;
    font-family: var(--font-ui);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.table-head span,
.table-row span {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
}

.table-head span + span,
.table-row span + span {
    border-left: 1px solid var(--line);
}

.table-row span {
    color: var(--text-soft);
    font-size: 0.92rem;
}

.table-row span:first-child {
    color: #1a2a42;
    font-weight: 600;
}

.industry-note {
    margin: 12px 0 0;
    color: #5a6c86;
    font-size: 0.86rem;
}

.case-showcase {
    display: grid;
    gap: 14px;
}

.case-panel {
    display: grid;
    grid-template-columns: 0.44fr 0.56fr;
    border: 1px solid var(--line-strong);
    background: #fff;
}

.case-media img {
    width: 100%;
    height: 100%;
    min-height: 260px;
    object-fit: cover;
}

.case-content {
    padding: 18px;
}

.case-content h3 {
    margin: 0;
    font-family: var(--font-ui);
    font-size: 1.38rem;
    line-height: 1.24;
    color: #111a29;
}

.case-content p {
    margin: 12px 0 0;
    color: var(--text-soft);
}

.case-kpis {
    margin-top: 14px;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-kpis div {
    padding: 10px 10px 0 0;
}

.case-kpis div + div {
    border-left: 1px solid var(--line);
    padding-left: 12px;
}

.case-kpis strong {
    display: block;
    font-family: var(--font-ui);
    color: #111c2a;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.08;
}

.case-kpis span {
    color: var(--text-soft);
    font-size: 0.8rem;
}

.delivery-title {
    display: grid;
    gap: 6px;
}

.delivery-title span {
    display: block;
    font-size: clamp(1rem, 0.84rem + 0.45vw, 1.3rem);
    font-weight: 500;
    letter-spacing: 0.06em;
    color: #305986;
}

.delivery-subtitle {
    margin-top: 16px;
    max-width: 840px;
    color: #415977;
    line-height: 1.75;
}

.delivery-layout {
    display: grid;
    grid-template-columns: 0.46fr 0.54fr;
    gap: 18px;
    align-items: stretch;
}

.delivery-visual {
    position: relative;
    border: 1px solid rgba(15, 111, 255, 0.2);
    background: #0d1726;
    box-shadow: 0 18px 40px rgba(7, 19, 38, 0.18);
    overflow: hidden;
    isolation: isolate;
}

.delivery-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 16% 18%, rgba(56, 215, 255, 0.3), rgba(56, 215, 255, 0));
    z-index: 0;
    pointer-events: none;
}

.delivery-visual img {
    width: 100%;
    min-height: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(1.04) contrast(1.06);
}

.delivery-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8, 17, 30, 0.8), rgba(8, 17, 30, 0.08));
    z-index: 1;
}

.delivery-visual-tags {
    position: absolute;
    top: 14px;
    left: 14px;
    right: 14px;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.delivery-visual-tags span {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #eaf4ff;
    border: 1px solid rgba(158, 212, 255, 0.38);
    background: rgba(8, 22, 43, 0.54);
    backdrop-filter: blur(5px);
}

.delivery-visual-copy {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 2;
    color: #fff;
    display: grid;
    gap: 6px;
    padding: 12px 14px;
    max-width: 340px;
    border: 1px solid rgba(158, 212, 255, 0.35);
    background: rgba(8, 20, 40, 0.5);
    backdrop-filter: blur(5px);
}

.delivery-visual-copy p,
.delivery-visual-copy strong,
.delivery-visual-copy span {
    margin: 0;
}

.delivery-visual-copy p {
    color: #b7d7ff;
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.delivery-visual-copy strong {
    font-family: var(--font-ui);
    font-size: 1.78rem;
    font-weight: 700;
    line-height: 1;
}

.delivery-visual-copy span {
    font-size: 0.82rem;
    color: #d8e9ff;
}

.delivery-content {
    border: 1px solid rgba(15, 111, 255, 0.18);
    background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
    padding: 16px;
    position: relative;
}

.delivery-content::before {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    top: 0;
    height: 2px;
    background: linear-gradient(90deg, rgba(15, 111, 255, 0.7), rgba(56, 215, 255, 0));
}

.delivery-flow {
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 0;
    counter-reset: step;
    display: grid;
    gap: 10px;
}

.delivery-flow li {
    padding: 16px 14px 16px 66px;
    border: 1px solid #d7e3f2;
    background: #fff;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.delivery-flow li:hover {
    transform: translateX(4px);
    border-color: #b8ccec;
    box-shadow: 0 10px 24px rgba(18, 56, 104, 0.1);
}

.delivery-flow li::before {
    content: counter(step, decimal-leading-zero);
    counter-increment: step;
    position: absolute;
    left: 14px;
    top: 16px;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    text-align: center;
    color: #0c489f;
    background: linear-gradient(180deg, rgba(15, 111, 255, 0.18), rgba(15, 111, 255, 0.05));
    border: 1px solid rgba(15, 111, 255, 0.26);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
}

.flow-kicker {
    display: block;
    margin: 0 0 4px;
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    color: #436795;
}

.delivery-flow h3 {
    margin: 0;
    font-size: 1.04rem;
    font-family: var(--font-ui);
    color: #151d2a;
    line-height: 1.38;
}

.delivery-flow p {
    margin: 7px 0 0;
    color: #4f627e;
    line-height: 1.68;
    font-size: 0.92rem;
}

.delivery-assets {
    margin-top: 16px;
    border-top: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.delivery-assets div {
    padding: 12px;
    display: grid;
    gap: 4px;
    border: 1px solid #d7e2f0;
    background: #fff;
    position: relative;
}

.delivery-assets div + div {
    border-left: 1px solid #d7e2f0;
    padding-left: 12px;
}

.delivery-assets div::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #0f6fff, rgba(15, 111, 255, 0.12));
}

.delivery-assets strong {
    font-family: var(--font-ui);
    color: #173256;
    font-size: 0.96rem;
}

.delivery-assets span {
    color: #4f6280;
    font-size: 0.8rem;
    line-height: 1.58;
}

.contact-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 30px;
}

.contact-info h2 {
    margin: 10px 0 0;
    font-family: var(--font-ui);
    font-size: clamp(2.1rem, 1.3rem + 1.8vw, 3.2rem);
    line-height: 1.12;
    color: #101620;
}

.contact-lead {
    margin: 14px 0 0;
    color: var(--text-soft);
}

.contact-lines {
    margin-top: 20px;
    border-top: 1px solid var(--line-strong);
}

.contact-lines p {
    margin: 0;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.contact-lines span {
    min-width: 3rem;
    color: #1f2f48;
    font-weight: 600;
}

.contact-lines a {
    color: var(--primary-strong);
    font-weight: 600;
}

.contact-form {
    border: 1px solid var(--line-strong);
    padding: 18px;
    background: #fff;
}

.contact-form h3 {
    margin: 0;
    font-family: var(--font-ui);
    color: #111a28;
    font-size: 1.16rem;
}

.form-grid {
    margin-top: 12px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

label {
    color: #2d3d55;
    font-size: 0.9rem;
    font-weight: 600;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line-strong);
    background: #fff;
    color: var(--text);
    font-family: var(--font-cn);
    font-size: 0.95rem;
    padding: 10px 10px;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
}

textarea {
    resize: vertical;
    min-height: 106px;
}

.contact-form .btn {
    width: 100%;
    margin-top: 14px;
}

.form-feedback {
    min-height: 22px;
    margin: 10px 0 0;
    font-size: 0.88rem;
    color: var(--text-soft);
}

.form-feedback.is-error {
    color: #bc2a3d;
}

.form-feedback.is-success {
    color: #0f7b60;
}

.site-footer {
    border-top: 1px solid var(--line-strong);
    background: #fff;
}

.footer-wrap {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-wrap p,
.footer-links a {
    margin: 0;
    color: #4b5b73;
    font-size: 0.84rem;
}

.footer-links {
    display: inline-flex;
    gap: 14px;
}

.reveal {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.36s ease, transform 0.36s ease;
}

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

@keyframes ribbonMove {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

@keyframes heroSweep {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(48px);
    }
}

@media (max-width: 1280px) {
    .shell {
        width: min(1460px, calc(100% - 2.2rem));
    }

    .hero-layout,
    .drone-layout,
    .contact-layout,
    .solution-row,
    .solutions-overview,
    .solution-main,
    .case-panel,
    .delivery-layout {
        grid-template-columns: 1fr;
    }

    .hero-stage {
        min-height: 460px;
    }

    .hero-copy h1 span {
        font-size: clamp(2rem, 1.5rem + 1.7vw, 3.1rem);
    }

    .hero-copy h1 strong {
        font-size: clamp(2.2rem, 1.75rem + 2vw, 3.7rem);
    }

    .solutions-gallery,
    .industry-visual-grid,
    .delivery-assets,
    .immersive-kpis {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .site-nav {
        position: absolute;
        left: 0;
        right: 0;
        top: 76px;
        background: #fff;
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        padding: 12px 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        opacity: 0;
        transform: scaleY(0);
        transform-origin: top;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .site-nav.open {
        opacity: 1;
        transform: scaleY(1);
        pointer-events: auto;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .nav-cta {
        display: none;
    }

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

    .metric-item:nth-child(3) {
        border-left: 0;
    }

    .table-head,
    .table-row,
    .case-panel {
        grid-template-columns: 1fr;
    }

    .table-head {
        display: none;
    }

    .table-head span + span,
    .table-row span + span {
        border-left: 0;
    }

    .table-row span {
        border-bottom: 0;
        padding: 8px 12px;
    }

    .table-row {
        border-bottom: 1px solid var(--line);
    }

    .solutions-gallery,
    .industry-visual-grid,
    .solution-stats,
    .case-kpis,
    .delivery-assets,
    .immersive-kpis {
        grid-template-columns: 1fr;
    }

    .solution-stats div + div,
    .case-kpis div + div,
    .delivery-assets div + div,
    .immersive-kpis div + div {
        border-left: 0;
        border-top: 1px solid var(--line);
        padding-left: 0;
        padding-top: 10px;
    }

    .immersive-kpis div + div {
        border-top-color: rgba(255, 255, 255, 0.24);
    }
}

@media (max-width: 640px) {
    .shell {
        width: min(1460px, calc(100% - 1.3rem));
    }

    .section {
        padding: 70px 0;
    }

    .hero {
        padding: 66px 0 46px;
        min-height: auto;
    }

    .hero-stage {
        min-height: 330px;
    }

    .hero-stage-info {
        left: 12px;
        bottom: 14px;
    }

    .hero-stage-controls {
        right: 12px;
        bottom: 14px;
    }

    .metrics-strip {
        grid-template-columns: 1fr;
    }

    .metric-item + .metric-item {
        border-left: 0;
        border-top: 1px solid var(--line);
    }

    .delivery-flow li {
        padding-left: 52px;
    }

    .immersive-media,
    .immersive-overlay {
        min-height: 54vh;
    }
}