.ei-page {
    position: relative;
    background: transparent;
    color: #141627;
}

.ei-page .footer .common_sec .btn {
    position: relative;
    z-index: 2;
}

.ei-page .footer .common_sec .pic {
    position: relative;
    z-index: 1;
}

.ei-page * {
    box-sizing: border-box;
}

.home.ei-page {
    background: transparent !important;
}

.ei-page::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: min(36vh, 360px);
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.98) 0%,
        rgba(255, 255, 255, 0.88) 42%,
        rgba(255, 255, 255, 0) 100%
    );
    pointer-events: none;
    z-index: 0;
}

.ei-page__bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    z-index: -1;
    opacity: 0.5;
    pointer-events: none;
}

.section-wrap {
    width: min(1500px, 92vw);
    margin: 0 auto;
}

.section-head {
    text-align: center;
    max-width: 980px;
    margin: 0 auto 3.2vw;
}

.section-head h2 {
    font-size: clamp(28px, 2.3vw, 46px);
    line-height: 1.25;
    color: #7245ff;
    margin: 0 0 1vw;
}

.section-head p {
    margin: 0;
    font-size: clamp(15px, 0.95vw, 18px);
    line-height: 1.85;
    color: #4b4f67;
}

.ei-kv {
    position: relative;
    padding-top: 7.5vw;
    padding-bottom: 6vw;
    margin: 8.75vw auto 1.30208vw;
    overflow: hidden;
    background: transparent;
}

.ei-kv__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 3vw;
}

.ei-kv__content h1 {
    margin: 0;
    font-size: clamp(34px, 3vw, 56px);
    line-height: 1.16;
    color: #1d1f33;
}

.ei-kv__content h2 {
    margin: 1vw 0 1.2vw;
    font-size: clamp(20px, 1.55vw, 32px);
    line-height: 1.35;
    color: #7245ff;
    font-weight: 600;
}

.ei-kv__content p {
    margin: 0;
    font-size: clamp(15px, 1vw, 19px);
    line-height: 1.9;
    color: #3e445c;
    max-width: 760px;
}

.ei-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 1.8vw;
    padding: 0 34px;
    height: 52px;
    border-radius: 999px;
    background: linear-gradient(90deg, #6f41ff 0%, #8f67ff 100%);
    color: #ffffff;
    font-size: 17px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ei-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(114, 69, 255, 0.3);
}

.ei-kv__visual {
    position: relative;
    height: min(36vw, 560px);
    border-radius: 26px;
    overflow: hidden;
    background: radial-gradient(circle at 30% 20%, #d7c9ff 0%, #f6f3ff 45%, #ffffff 100%);
    border: 1px solid #ece6ff;
    isolation: isolate;
}

.ei-kv__traj {
    position: absolute;
    z-index: 3;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.ei-kv__traj-path--a {
    stroke-dasharray: 420;
    stroke-dashoffset: 420;
    animation: eiTrajDraw 4s linear infinite;
}

.ei-kv__robot-motion {
    filter: drop-shadow(0 4px 14px rgba(114, 69, 255, 0.22));
}

.ei-kv__robot-draw line,
.ei-kv__robot-draw path,
.ei-kv__robot-draw rect,
.ei-kv__robot-draw circle {
    vector-effect: non-scaling-stroke;
}

.ei-kv__sweep {
    position: absolute;
    z-index: 0;
    left: 50%;
    top: 50%;
    width: 160%;
    height: 160%;
    margin: -80% 0 0 -80%;
    pointer-events: none;
    background: conic-gradient(
        from 0deg at 50% 50%,
        transparent 0deg,
        rgba(114, 69, 255, 0.07) 55deg,
        rgba(114, 69, 255, 0.18) 90deg,
        rgba(114, 69, 255, 0.07) 125deg,
        transparent 180deg,
        transparent 360deg
    );
    animation: eiSweepRotate 14s linear infinite;
}

.ei-kv__mesh {
    position: absolute;
    z-index: 1;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    overflow: hidden;
}

.ei-kv__mesh--1 {
    inset: 6%;
    mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, #000 55%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, #000 55%, transparent 100%);
}

.ei-kv__mesh-pattern {
    position: absolute;
    width: calc(100% + 160px);
    height: calc(100% + 160px);
    left: -80px;
    top: -80px;
    background-image:
        linear-gradient(rgba(114, 69, 255, 0.28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(114, 69, 255, 0.28) 1px, transparent 1px);
    background-size: 32px 32px;
    animation: eiMeshPan 7s linear infinite;
    will-change: transform;
}

.ei-kv__mesh-pattern--fine {
    background-size: 16px 16px;
    animation-name: eiMeshPanRev;
    animation-duration: 9s;
    opacity: 0.55;
}

.ei-kv__mesh--2 {
    inset: 0;
    opacity: 0.55;
}

.ei-kv__glow {
    position: absolute;
    z-index: 2;
    left: 50%;
    top: 48%;
    width: 55%;
    height: 55%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(114, 69, 255, 0.22) 0%, transparent 68%);
    animation: eiGlowPulse 5s ease-in-out infinite;
    pointer-events: none;
}

.ei-orbit {
    position: absolute;
    z-index: 3;
    border: 1px solid rgba(114, 69, 255, 0.45);
    border-radius: 50%;
    top: 50%;
    left: 52%;
    transform: translate(-50%, -50%);
    animation: eiOrbitSpin 22s linear infinite;
    will-change: transform;
}

.ei-orbit-1 {
    width: 48%;
    aspect-ratio: 1 / 1;
}

.ei-orbit-2 {
    width: 66%;
    aspect-ratio: 1 / 1;
    animation-duration: 30s;
    animation-direction: reverse;
    border-color: rgba(114, 69, 255, 0.32);
}

.ei-orbit-3 {
    width: 84%;
    aspect-ratio: 1 / 1;
    animation-duration: 40s;
    border-color: rgba(114, 69, 255, 0.22);
}

@media (prefers-reduced-motion: reduce) {
    .ei-kv__sweep,
    .ei-orbit,
    .ei-kv__glow,
    .ei-kv__traj-path--a {
        animation: none !important;
        stroke-dashoffset: 0 !important;
    }

    .ei-kv__mesh-pattern {
        animation-duration: 24s !important;
    }

    .ei-kv__mesh--2 {
        opacity: 0.25;
    }
}

.ei-capabilities {
    padding: 2.4vw 0 0.6vw;
}

.ei-cap-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25vw;
}

.ei-cap-card {
    border: 1px solid #ece6ff;
    border-radius: 18px;
    background: #fbfaff;
    padding: 1.5vw 1.25vw;
    min-height: 220px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.ei-cap-card:hover {
    transform: translateY(-8px);
    border-color: #d7c9ff;
    box-shadow: 0 20px 36px rgba(114, 69, 255, 0.16);
}

.ei-cap-card h3 {
    margin: 0 0 0.8vw;
    font-size: clamp(19px, 1.2vw, 24px);
    line-height: 1.35;
    color: #2a2b45;
}

.ei-cap-card p {
    margin: 0;
    font-size: clamp(14px, 0.9vw, 17px);
    line-height: 1.85;
    color: #4f536d;
}

.ei-scenes {
    padding: 5.4vw 0 0.6vw;
}

.ei-scene-wrap {
    display: grid;
    grid-template-columns: 0.34fr 0.66fr;
    gap: 1.5vw;
    align-items: stretch;
}

.ei-scene-tabs {
    display: flex;
    flex-direction: column;
    gap: 0.72vw;
}

.ei-scene-tab {
    width: 100%;
    border: 1px solid #e4dbff;
    border-radius: 14px;
    background: #f8f5ff;
    color: #3a3f59;
    text-align: left;
    padding: 1vw 1.2vw;
    font-size: clamp(15px, 0.95vw, 18px);
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
}

.ei-scene-tab.is-active {
    background: #7245ff;
    border-color: #7245ff;
    color: #ffffff;
    box-shadow: 0 16px 30px rgba(114, 69, 255, 0.24);
}

.ei-scene-content {
    border: 1px solid #e8e1ff;
    border-radius: 20px;
    background: linear-gradient(145deg, #f9f6ff 0%, #ffffff 100%);
    min-height: 280px;
    display: block;
    overflow: hidden;
}

.ei-scene-panel {
    display: none;
    width: 100%;
    height: 100%;
    min-height: 280px;
}

.ei-scene-panel.is-active {
    display: grid;
    grid-template-columns: 0.42fr 0.58fr;
    align-items: stretch;
}

.ei-scene-panel__text {
    padding: 2.2vw 1.3vw 2.2vw 2vw;
    display: flex;
    align-items: center;
}

.ei-scene-panel__media {
    width: 100%;
    height: 100%;
    min-height: 280px;
}

.ei-scene-panel__media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ei-scene-panel p {
    margin: 0;
    font-size: clamp(16px, 1vw, 20px);
    line-height: 1.95;
    color: #2c314d;
}

.ei-quality {
    padding: 5.4vw 0 0.6vw;
}

.ei-quality-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25vw;
}

.ei-quality-card {
    border: 1px solid #ece6ff;
    border-radius: 18px;
    background: #fbfaff;
    padding: 1.5vw 1.25vw;
    min-height: 200px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.ei-quality-card:hover {
    transform: translateY(-8px);
    border-color: #d7c9ff;
    box-shadow: 0 20px 36px rgba(114, 69, 255, 0.16);
}

.ei-quality-card h3 {
    margin: 0 0 0.8vw;
    font-size: clamp(18px, 1.15vw, 23px);
    line-height: 1.35;
    color: #2a2b45;
}

.ei-quality-card p {
    margin: 0;
    font-size: clamp(14px, 0.9vw, 17px);
    line-height: 1.85;
    color: #4f536d;
}

.ei-delivery {
    padding: 5.4vw 0 0.6vw;
}

.ei-delivery-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1vw;
}

.ei-delivery-item {
    background: #f9f6ff;
    border: 1px solid #e7e0ff;
    border-radius: 16px;
    padding: 1.15vw;
    transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.ei-delivery-item:hover {
    border-color: #7245ff;
    background: #ffffff;
    box-shadow: 0 12px 28px rgba(114, 69, 255, 0.12);
}

.ei-delivery-item h3 {
    margin: 0 0 0.7vw;
    font-size: clamp(17px, 1.05vw, 21px);
    color: #272b45;
    line-height: 1.4;
}

.ei-delivery-item p {
    margin: 0;
    font-size: clamp(14px, 0.85vw, 16px);
    line-height: 1.75;
    color: #505571;
}

.ei-security {
    padding: 5.4vw 0 6vw;
}

.ei-security-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.2vw;
}

.ei-security-card {
    border-radius: 18px;
    border: 1px solid #e5ddff;
    background: linear-gradient(145deg, #fbfaff 0%, #ffffff 100%);
    padding: 1.4vw 1.3vw;
    min-height: 210px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.ei-security-card:hover {
    transform: translateY(-8px);
    border-color: #d7c9ff;
    box-shadow: 0 20px 36px rgba(114, 69, 255, 0.14);
}

.ei-security-card h3 {
    margin: 0 0 0.8vw;
    font-size: clamp(19px, 1.2vw, 25px);
    line-height: 1.36;
    color: #252b45;
}

.ei-security-card p {
    margin: 0;
    font-size: clamp(14px, 0.9vw, 17px);
    line-height: 1.85;
    color: #4e536d;
}

@keyframes eiMeshPan {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(-128px, -128px, 0);
    }
}

@keyframes eiMeshPanRev {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(96px, -96px, 0);
    }
}

@keyframes eiSweepRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes eiGlowPulse {
    0%,
    100% {
        opacity: 0.55;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.85;
        transform: translate(-50%, -50%) scale(1.06);
    }
}

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

@keyframes eiTrajDraw {
    0% {
        stroke-dashoffset: 420;
    }
    45% {
        stroke-dashoffset: 0;
    }
    55% {
        stroke-dashoffset: 0;
    }
    100% {
        stroke-dashoffset: -420;
    }
}

@media (max-width: 1200px) {
    .ei-kv {
        padding-top: 120px;
        padding-bottom: 64px;
        margin: 100px auto 20px;
    }

    .ei-kv__grid {
        grid-template-columns: 1fr;
    }

    .ei-kv__visual {
        height: 420px;
    }

    .ei-cap-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
    }

    .ei-scene-wrap {
        grid-template-columns: 1fr;
    }

    .ei-scene-tabs {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
    }

    .ei-scene-tab {
        width: calc(50% - 5px);
        text-align: center;
        padding: 14px;
    }

    .ei-scene-content {
        min-height: 240px;
    }

    .ei-scene-panel,
    .ei-scene-panel__media {
        min-height: 240px;
    }

    .ei-scene-panel.is-active {
        grid-template-columns: 0.44fr 0.56fr;
    }

    .ei-scene-panel__text {
        padding: 26px 18px 26px 24px;
    }

    .ei-quality-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .ei-delivery-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .ei-security-grid {
        gap: 14px;
    }
}

@media (max-width: 768px) {
    .ei-page::before {
        display: none;
    }

    .section-wrap {
        width: 90vw;
    }

    .section-head {
        margin-bottom: 22px;
    }

    .ei-kv {
        padding-top: 96px;
        padding-bottom: 48px;
        margin: 84px auto 16px;
        border-radius: 16px;
    }

    .ei-kv__content h2 {
        margin: 12px 0 14px;
    }

    .ei-btn {
        margin-top: 18px;
        height: 48px;
        padding: 0 24px;
        font-size: 15px;
    }

    .ei-kv__visual {
        height: 300px;
        border-radius: 18px;
    }

    .ei-capabilities,
    .ei-scenes,
    .ei-quality,
    .ei-delivery,
    .ei-security {
        padding-top: 44px;
    }

    .ei-cap-grid,
    .ei-security-grid,
    .ei-delivery-row {
        grid-template-columns: 1fr;
    }

    .ei-cap-card,
    .ei-security-card,
    .ei-quality-card {
        padding: 18px 16px;
        min-height: 0;
    }

    .ei-scene-tab {
        width: 100%;
    }

    .ei-scene-content {
        min-height: 180px;
        border-radius: 16px;
    }

    .ei-scene-panel,
    .ei-scene-panel__media {
        min-height: 180px;
    }

    .ei-scene-panel.is-active {
        grid-template-columns: 1fr;
    }

    .ei-scene-panel__text {
        padding: 18px 16px;
    }

    .ei-scene-panel__media {
        height: 210px;
        min-height: 210px;
    }

    .ei-delivery-item {
        padding: 18px 16px;
    }
}