:root {
    color-scheme: dark;
    --bg: #06111b;
    --bg-soft: #0c1a27;
    --panel: rgba(8, 26, 40, 0.78);
    --panel-strong: rgba(9, 33, 50, 0.96);
    --panel-border: rgba(103, 235, 255, 0.18);
    --text: #e7fbff;
    --muted: #8db2c0;
    --line: rgba(103, 235, 255, 0.16);
    --accent: #67ebff;
    --accent-2: #3ddc97;
    --accent-3: #ffb347;
    --shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 18px;
    --container: 1240px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 20%, rgba(103, 235, 255, 0.12), transparent 28%),
        radial-gradient(circle at 80% 10%, rgba(61, 220, 151, 0.1), transparent 24%),
        linear-gradient(180deg, #04101a 0%, #07131f 45%, #06111b 100%);
}

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

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

button {
    font: inherit;
    border: 0;
}

.site-shell {
    position: relative;
    overflow: hidden;
}

.hud-grid,
.hud-beam {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 0;
}

.hud-grid {
    background-image:
        linear-gradient(rgba(103, 235, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(103, 235, 255, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.9) 18%, rgba(0, 0, 0, 0.9) 84%, transparent);
}

.hud-beam {
    opacity: 0.35;
}

.beam-a {
    background: radial-gradient(circle at 0% 0%, rgba(103, 235, 255, 0.22), transparent 28%);
}

.beam-b {
    background: radial-gradient(circle at 100% 20%, rgba(255, 179, 71, 0.16), transparent 24%);
}

.topbar,
main,
.site-footer {
    position: relative;
    z-index: 1;
    width: min(calc(100% - 40px), var(--container));
    margin: 0 auto;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 0 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border-radius: 16px;
    border: 1px solid rgba(103, 235, 255, 0.25);
    background:
        linear-gradient(180deg, rgba(103, 235, 255, 0.18), rgba(103, 235, 255, 0.02)),
        rgba(8, 24, 37, 0.9);
    box-shadow: inset 0 0 24px rgba(103, 235, 255, 0.12), 0 0 28px rgba(103, 235, 255, 0.14);
    font-weight: 700;
    letter-spacing: 0.18em;
}

.brand-logo {
    width: 74px;
    height: 74px;
    object-fit: contain;
    object-position: center;
    border-radius: 0;
    border: 0;
    box-shadow: none;
    background: transparent;
    flex: 0 0 auto;
}

.brand-text {
    display: grid;
    gap: 3px;
}

.brand-text strong {
    font-size: 1rem;
    font-weight: 700;
}

.brand-text small,
.topnav a,
.section-note,
.metric-label,
.info-card p,
.list-block li,
.qr-box p,
.topnav small {
    color: var(--muted);
}

.topnav {
    display: flex;
    align-items: center;
    gap: 18px;
}

.topnav a {
    position: relative;
    font-size: 0.95rem;
}

.topnav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s ease;
}

.topnav a:hover::after {
    transform: scaleX(1);
}

.hero,
.detail-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 28px;
    align-items: center;
}

.hero {
    min-height: calc(100vh - 110px);
    padding: 24px 0 28px;
}

.section-kicker {
    margin: 0 0 10px;
    font-size: 0.82rem;
    letter-spacing: 0.32em;
    color: var(--accent);
}

.hero h1,
.detail-title {
    margin: 0;
    line-height: 1.05;
    font-size: clamp(2.8rem, 6vw, 5.8rem);
    letter-spacing: -0.04em;
}

.hero-text,
.detail-summary {
    width: min(92%, 760px);
    margin: 22px 0 0;
    font-size: 1.08rem;
    line-height: 1.8;
    color: var(--muted);
}

.hero-actions,
.page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: linear-gradient(135deg, rgba(103, 235, 255, 0.2), rgba(103, 235, 255, 0.06));
    border-color: rgba(103, 235, 255, 0.34);
    box-shadow: inset 0 0 28px rgba(103, 235, 255, 0.08), 0 14px 28px rgba(0, 0, 0, 0.28);
    color: var(--text);
}

.button-secondary {
    background: rgba(10, 26, 40, 0.7);
    border-color: rgba(103, 235, 255, 0.16);
}

.hero-points,
.metric-list,
.list-block ul,
.reference-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.hero-points {
    display: grid;
    gap: 10px;
    margin-top: 26px;
}

.hero-points li,
.list-block li,
.reference-list li {
    position: relative;
    padding-left: 18px;
}

.hero-points li::before,
.list-block li::before,
.reference-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.75em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(103, 235, 255, 0.5);
}

.hero-visual {
    display: grid;
    gap: 18px;
    justify-items: end;
}

.hero-radar,
.hero-panel,
.detail-image,
.surface-panel,
.equipment-card,
.metric-card,
.qr-box,
.info-card {
    border: 1px solid var(--panel-border);
    background:
        linear-gradient(180deg, rgba(103, 235, 255, 0.08), rgba(103, 235, 255, 0.02)),
        var(--panel);
    box-shadow: var(--shadow), inset 0 0 24px rgba(103, 235, 255, 0.05);
}

.hero-radar {
    position: relative;
    width: min(100%, 420px);
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
}

.radar-ring,
.radar-core,
.radar-sweep {
    position: absolute;
    inset: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.radar-ring {
    border: 1px solid rgba(103, 235, 255, 0.16);
}

.ring-1 { width: 38%; height: 38%; }
.ring-2 { width: 64%; height: 64%; }
.ring-3 { width: 88%; height: 88%; }

.radar-core {
    width: 10px;
    height: 10px;
    background: var(--accent);
    box-shadow: 0 0 20px var(--accent);
}

.radar-sweep {
    width: 100%;
    height: 100%;
    background: conic-gradient(from 0deg, transparent 0deg 295deg, rgba(103, 235, 255, 0.28) 345deg, transparent 360deg);
    animation: spin 6s linear infinite;
}

.radar-target {
    position: absolute;
    z-index: 1;
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid rgba(103, 235, 255, 0.3);
    background: rgba(5, 18, 30, 0.88);
    color: #d8fbff;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    opacity: 0;
    transform: translateY(8px) scale(0.96);
    box-shadow: 0 0 0 rgba(103, 235, 255, 0);
    filter: blur(4px);
    animation: target-ping 6s linear infinite;
}

.radar-target::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 50%;
    width: 22px;
    height: 1px;
    background: currentColor;
    opacity: 0.55;
    transform: translateY(-50%) scaleX(0.2);
    transform-origin: right center;
}

.radar-target::after {
    content: "";
    position: absolute;
    left: -34px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
    transform: translateY(-50%) scale(0.2);
    opacity: 0;
    box-shadow: 0 0 0 currentColor;
}

.risk-high {
    color: #ffcf70;
}

.risk-mid {
    color: #8ae7ff;
}

.target-a { top: 18%; right: 17%; animation-delay: 0.3s; }
.target-b { top: 33%; left: 12%; animation-delay: 1.1s; }
.target-c { top: 54%; right: 8%; animation-delay: 2.2s; }
.target-d { bottom: 24%; left: 14%; animation-delay: 3.4s; }
.target-e { bottom: 14%; right: 22%; animation-delay: 4.6s; }

.hero-panel,
.surface-panel,
.info-card,
.qr-box {
    border-radius: var(--radius-lg);
    padding: 18px 20px;
}

.hero-panel {
    width: min(100%, 360px);
    display: grid;
    gap: 5px;
}

.hero-panel span,
.metric-card span,
.detail-meta span,
.small-label {
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.hero-panel strong,
.metric-card strong {
    font-size: 1.2rem;
}

.overview-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 8px 0 32px;
}

.overview-strip article,
.metric-card {
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--line);
    background: rgba(7, 21, 33, 0.72);
}

.overview-strip span {
    display: block;
    margin-bottom: 8px;
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--accent);
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0 20px;
}

.section-head h2,
.section-title {
    margin: 4px 0 0;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
    padding-bottom: 42px;
}

.equipment-card {
    position: relative;
    overflow: hidden;
    border-radius: 26px;
    min-height: 390px;
    display: flex;
    align-items: end;
    padding: 0;
    transform: translateY(18px);
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: var(--delay, 0s);
}

.equipment-card::after,
.detail-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(2, 7, 12, 0.1), rgba(2, 7, 12, 0.78)),
        linear-gradient(120deg, transparent 0%, rgba(103, 235, 255, 0.08) 70%, transparent 100%);
}

.equipment-card:hover {
    transform: translateY(0);
    box-shadow: 0 24px 54px rgba(0, 0, 0, 0.42), inset 0 0 24px rgba(103, 235, 255, 0.08);
}

.equipment-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.equipment-card:hover img,
.detail-image:hover img {
    transform: scale(1.05);
}

.equipment-card-body {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: 24px;
}

.equipment-card h3 {
    margin: 0;
    font-size: 1.42rem;
}

.equipment-card p {
    margin: 12px 0 18px;
    color: rgba(231, 251, 255, 0.82);
    line-height: 1.7;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.tag-row span {
    display: inline-flex;
    padding: 6px 11px;
    border-radius: 999px;
    border: 1px solid rgba(103, 235, 255, 0.2);
    background: rgba(4, 14, 24, 0.64);
    color: var(--accent);
    font-size: 0.8rem;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--accent-3);
    font-weight: 600;
}

.detail-main {
    padding: 18px 0 56px;
}

.detail-hero {
    padding: 18px 0 30px;
}

.detail-meta {
    display: grid;
    gap: 16px;
}

.detail-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.detail-chip {
    display: inline-flex;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(7, 23, 35, 0.86);
    border: 1px solid rgba(103, 235, 255, 0.18);
    color: var(--accent);
}

.detail-image {
    position: relative;
    min-height: 520px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.detail-image img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-overlay {
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 24px;
    z-index: 1;
    display: grid;
    gap: 6px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
}

.surface-panel {
    border-radius: var(--radius-xl);
    padding: 22px;
}

.image-showcase {
    display: grid;
    gap: 16px;
    align-content: start;
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.showcase-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(103, 235, 255, 0.08), rgba(103, 235, 255, 0.02)),
        rgba(5, 18, 29, 0.72);
}

.showcase-primary {
    min-height: 320px;
}

.showcase-secondary {
    min-height: 180px;
}

.showcase-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(2, 7, 12, 0.08), rgba(2, 7, 12, 0.46)),
        linear-gradient(135deg, transparent 0%, rgba(103, 235, 255, 0.1) 68%, transparent 100%);
    pointer-events: none;
}

.showcase-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.showcase-caption {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.panel-stack {
    display: grid;
    gap: 20px;
}

.metric-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.metric-card {
    min-height: 132px;
}

.metric-card strong {
    display: block;
    margin-top: 12px;
    font-size: 1.72rem;
}

.metric-label {
    display: block;
    margin-top: 12px;
    line-height: 1.6;
}

.content-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.list-block {
    padding: 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(4, 18, 29, 0.54);
}

.list-block h3,
.info-card h3,
.surface-panel h2,
.surface-panel h3 {
    margin: 0 0 14px;
    font-size: 1.16rem;
}

.list-block ul {
    display: grid;
    gap: 12px;
}

.list-block li {
    line-height: 1.7;
}

.reference-list {
    display: grid;
    gap: 10px;
}

.reference-list a {
    color: #b7f6ff;
    border-bottom: 1px solid rgba(183, 246, 255, 0.22);
}

.site-footer {
    padding: 18px 0 34px;
}

.site-footer p {
    margin: 0;
    color: var(--muted);
}

@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes target-ping {
    0%,
    100% {
        opacity: 0;
        transform: translateY(8px) scale(0.96);
        filter: blur(4px);
        box-shadow: 0 0 0 rgba(103, 235, 255, 0);
        border-color: rgba(103, 235, 255, 0.12);
    }
    10% {
        opacity: 0;
        transform: translateY(8px) scale(0.96);
        filter: blur(4px);
        box-shadow: 0 0 0 rgba(103, 235, 255, 0);
    }
    14% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
        border-color: rgba(103, 235, 255, 0.55);
        box-shadow: 0 0 18px rgba(103, 235, 255, 0.35);
    }
    18% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
        box-shadow: 0 0 18px rgba(103, 235, 255, 0.35);
        border-color: rgba(103, 235, 255, 0.55);
    }
    24% {
        opacity: 0.35;
        transform: translateY(-2px) scale(0.99);
        filter: blur(1px);
        box-shadow: 0 0 10px rgba(103, 235, 255, 0.18);
        border-color: rgba(103, 235, 255, 0.2);
    }
    30% {
        opacity: 0;
        transform: translateY(-4px) scale(0.97);
        filter: blur(4px);
        box-shadow: 0 0 0 rgba(103, 235, 255, 0);
    }
}

.radar-target.risk-high {
    box-shadow: 0 0 0 rgba(255, 207, 112, 0);
}

.radar-target.risk-high::before,
.radar-target.risk-high::after {
    color: #ffcf70;
}

.radar-target.risk-mid::before,
.radar-target.risk-mid::after {
    color: #8ae7ff;
}

.radar-target.risk-high {
    animation-name: target-ping-high;
}

@keyframes target-ping-high {
    0%,
    100% {
        opacity: 0;
        transform: translateY(8px) scale(0.96);
        filter: blur(4px);
        box-shadow: 0 0 0 rgba(255, 207, 112, 0);
        border-color: rgba(255, 207, 112, 0.14);
    }
    10% {
        opacity: 0;
        transform: translateY(8px) scale(0.96);
        filter: blur(4px);
    }
    14%,
    18% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
        border-color: rgba(255, 207, 112, 0.62);
        box-shadow: 0 0 20px rgba(255, 207, 112, 0.34);
    }
    24% {
        opacity: 0.36;
        transform: translateY(-2px) scale(0.99);
        filter: blur(1px);
        border-color: rgba(255, 207, 112, 0.24);
        box-shadow: 0 0 10px rgba(255, 207, 112, 0.18);
    }
    30% {
        opacity: 0;
        transform: translateY(-4px) scale(0.97);
        filter: blur(4px);
        box-shadow: 0 0 0 rgba(255, 207, 112, 0);
    }
}

.radar-target.risk-high::before,
.radar-target.risk-mid::before {
    animation: target-line 6s linear infinite;
    animation-delay: inherit;
}

.radar-target.risk-high::after,
.radar-target.risk-mid::after {
    animation: target-dot 6s linear infinite;
    animation-delay: inherit;
}

@keyframes target-line {
    0%,
    11%,
    100% {
        opacity: 0;
        transform: translateY(-50%) scaleX(0.2);
    }
    15%,
    20% {
        opacity: 0.8;
        transform: translateY(-50%) scaleX(1);
    }
    26% {
        opacity: 0.2;
        transform: translateY(-50%) scaleX(0.75);
    }
    30% {
        opacity: 0;
        transform: translateY(-50%) scaleX(0.2);
    }
}

@keyframes target-dot {
    0%,
    11%,
    100% {
        opacity: 0;
        transform: translateY(-50%) scale(0.2);
        box-shadow: 0 0 0 currentColor;
    }
    15%,
    20% {
        opacity: 1;
        transform: translateY(-50%) scale(1);
        box-shadow: 0 0 12px currentColor;
    }
    26% {
        opacity: 0.2;
        transform: translateY(-50%) scale(0.8);
        box-shadow: 0 0 0 currentColor;
    }
    30% {
        opacity: 0;
        transform: translateY(-50%) scale(0.2);
    }
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1100px) {
    .hero,
    .detail-hero,
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        justify-items: start;
    }

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

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

    .showcase-primary,
    .showcase-secondary {
        min-height: 220px;
    }
}

@media (max-width: 780px) {
    .topbar,
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .topnav {
        flex-wrap: wrap;
    }

    .overview-strip,
    .metric-list {
        grid-template-columns: 1fr;
    }

    .detail-image {
        min-height: 360px;
    }

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

@media (max-width: 560px) {
    .topbar,
    main,
    .site-footer {
        width: min(calc(100% - 24px), var(--container));
    }

    .hero h1,
    .detail-title {
        font-size: 2.3rem;
    }

    .hero {
        min-height: auto;
        padding-top: 8px;
    }

    .equipment-card {
        min-height: 340px;
    }
}

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