/* === Hero === */
.hero {
    position: relative;
    min-height: 510px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 75px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.hero-mask {
    position: absolute;
    inset: 0;
    z-index: 1;
}
.hero-mask img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1100px;
    padding: 0 20px;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    background: #0068dd;
    border-radius: 4px;
    padding: 6px 20px;
    font-size: 16px;
    color: #fff;
    margin-bottom: 20px;
}
.hero-title {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 4px rgba(0,0,0,0.25);
    margin-bottom: 12px;
}
.hero-desc {
    font-size: 20px;
    line-height: 40px;
    color: #fff;
    text-shadow: 0 4px 4px rgba(0,0,0,0.25);
}

/* === Section === */
.section {
    padding: 64px 0;
    position: relative;
}

/* === Vision Intro === */
.vision-intro {
    text-align: center;
    margin-bottom: 32px;
}
.vision-intro .tag {
    display: inline-block;
    background: #e8f0fe;
    border: 1px solid #0068dd;
    border-radius: 30px;
    padding: 4px 20px;
    font-size: 12px;
    color: #0068dd;
    margin-bottom: 16px;
}
.vision-intro .title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: 2.4px;
    background: linear-gradient(180deg, #00e5ff, #0068dd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}
.vision-intro .desc {
    font-size: 20px;
    line-height: 40px;
    color: #000;
}

/* === Section Header === */
.section-header {
    text-align: center;
    margin-bottom: 32px;
}
.section-header .gradient-title {
    font-size: 28px;
    font-weight: 600;
    background-size: cover;
    background-position: center;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* === Capability & Arch === */
.capability-image {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.capability-image img {
    width: 100%;
    border-radius: 16px;
}
.arch-image {
    width: 100%;
}
.arch-image img {
    width: 100%;
    height: auto;
}

/* === Security Section === */
.security-section {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
    padding: 48px 0;
    overflow: hidden;
}
.security-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.53;
    z-index: 0;
}
.security-content {
    position: relative;
    z-index: 1;
    width: 100%;
}
.security-header {
    text-align: center;
    margin-bottom: 24px;
}
.security-header .tag {
    display: inline-block;
    background: #e8f0fe;
    border: 1px solid #0068dd;
    border-radius: 30px;
    padding: 4px 20px;
    font-size: 12px;
    color: #0068dd;
    margin-bottom: 16px;
}
.security-header .title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: 2.4px;
    background: linear-gradient(180deg, #00e5ff, #0068dd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.security-header .desc {
    font-size: 20px;
    color: #000;
    line-height: 40px;
}
.security-cards {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.security-card {
    background: rgba(253,254,255,0.7);
    border-radius: 16px;
    padding: 24px 20px;
    width: 360px;
    max-width: 100%;
}
.security-card .icon {
    width: 36px;
    height: 36px;
    margin-bottom: 12px;
}
.security-card .icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.security-card .card-title {
    font-size: 16px;
    font-weight: 600;
    color: #000;
    margin-bottom: 8px;
}
.security-card .card-desc {
    font-size: 16px;
    line-height: 28px;
    color: #000;
}

/* === Scenario Wrapper === */
.scenario-wrapper {
    display: flex;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    align-items: flex-start;
}
.scenario-left {
    flex: 0 0 auto;
}
.scenario-right {
    flex: 1;
}
.scenario-right .img-wrap {
    border-radius: 20px;
    overflow: hidden;
}
.scenario-right .img-wrap img {
    width: 100%;
    display: block;
    border-radius: 20px;
}

/* === Scenario Items === */
.scenario-items {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.scenario-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(253,254,255,0.3);
    border-radius: 16px;
    padding: 10px 16px;
    box-shadow: 0 0 6px 3px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: box-shadow 0.3s, transform 0.2s;
}
.scenario-item:hover {
    box-shadow: 0 0 12px rgba(0,104,221,0.25);
}
.scenario-item.active {
    box-shadow: 0 0 0 2px #0068dd, 0 0 12px rgba(0,104,221,0.2);
}
.scenario-item .icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}
.scenario-item .icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.scenario-item .sname {
    font-size: 20px;
}
.scenario-item .sname.highlight {
    color: #0068dd;
}
.scenario-item .sname.normal {
    color: #333;
}

/* === Data Cards === */
.data-cards {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.data-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 12px rgba(0,0,0,0.12);
    max-width: 100%;
}
.data-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.data-card.wide {
    width: 100%;
    max-width: 1270px;
}

/* === Data Cards Carousel (mobile) === */
.data-cards-carousel {
    display: block;
    max-width: none;
    padding: 0;
    margin: 0 auto;
}
.data-cards-carousel .carousel-track {
    display: flex;
    gap: 0;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.data-cards-carousel .carousel-track::-webkit-scrollbar { display: none; }
.data-cards-carousel .data-card {
    flex: 0 0 100%;
    width: 100%;
    max-width: 100%;
    scroll-snap-align: center;
}
.data-cards-carousel .carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}
.data-cards-carousel .carousel-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: rgba(0,104,221,0.25);
    border: none; padding: 0; cursor: pointer;
    transition: width .25s, background .25s;
}
.data-cards-carousel .carousel-dot.active {
    width: 22px; border-radius: 4px; background: #0068dd;
}
@media (min-width: 769px) {
    .data-cards-carousel {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        max-width: 1200px; padding: 0 40px;
        margin: 0 auto;
    }
    .data-cards-carousel .carousel-track {
        display: contents;
    }
    .data-cards-carousel .data-card { flex: none; width: auto; max-width: 100%; scroll-snap-align: none; }
    .data-cards-carousel .carousel-clone { display: none; }
    .data-cards-carousel .carousel-dots { display: none; }
}
.data-cards-carousel .data-card img { display: block; }

/* === Responsive === */
@media (max-width: 1024px) {
    .scenario-wrapper {
        flex-direction: column;
    }
    .scenario-left {
        flex: none;
        width: 100%;
    }
    .hero-title {
        font-size: 32px;
    }
    .hero-desc {
        font-size: 18px;
        line-height: 32px;
    }
    .vision-intro .title {
        font-size: 30px;
    }
    .vision-intro .desc {
        font-size: 18px;
        line-height: 30px;
    }
    .security-header .title {
        font-size: 30px;
    }
    .security-card {
        width: 100%;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 28px;
    }
    .vision-intro .title {
        font-size: 28px;
    }
    .scenario-item {
        flex-wrap: wrap;
    }
    .scenario-item .sname {
        font-size: 18px;
    }
    .data-card {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title { font-size: 24px; }
    .hero-desc { font-size: 15px; line-height: 26px; }
    .hero-tag { font-size: 14px; padding: 4px 16px; }
    .hero { min-height: 360px; }
    .vision-intro .title { font-size: 24px; }
    .vision-intro .desc { font-size: 15px; line-height: 26px; }
    .section-header .gradient-title { font-size: 22px; }
    .capability-image { padding: 0 16px; }
    .security-header .title { font-size: 24px; }
    .security-header .desc { font-size: 15px; line-height: 28px; }
    .security-cards { padding: 0 16px; }
    .security-card { padding: 16px 14px; }
    .security-card .card-title { font-size: 15px; }
    .security-card .card-desc { font-size: 14px; line-height: 24px; }
    .scenario-wrapper { padding: 0 16px; gap: 24px; }
    .scenario-item { padding: 8px 12px; }
    .scenario-item .sname { font-size: 16px; }
    .data-cards { padding: 0 16px; gap: 16px; }
    .section { padding: 48px 0; }
}