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

:root {
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-400: #2dd4bf;
    --black: #000;
    --gray-500: #6b7280;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #fff;
    overflow-x: hidden;
    background: var(--black);
    cursor: auto !important;
}

* {
    cursor: auto;
}

a,
button,
.btn,
.nav-link {
    cursor: pointer !important;
}

*:hover {
    cursor: auto;
}

a:hover,
button:hover,
.btn:hover,
.nav-link:hover {
    cursor: pointer !important;
}

.video-background {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: #000;
    pointer-events: none !important;
}

#bg-video {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    pointer-events: none !important;
}

.video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.05);
    z-index: 1;
    pointer-events: none;
}

.main-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden;
}

.features,
.values,
.mission {
    position: relative;
}

.features::before,
.values::before,
.mission::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.15));
    z-index: 1;
    pointer-events: none;
}

.features>*,
.values>*,
.mission>* {
    position: relative;
    z-index: 2;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.2));
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    max-width: 900px;
    width: 100%;
    position: relative;
    z-index: 10;
    transition: opacity .3s, transform .3s;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.5), 0 4px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInUp .8s ease-out;
}

.title-accent {
    color: var(--teal-500);
    text-shadow: 0 2px 15px rgba(20, 184, 166, 0.3), 0 4px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    display: inline-block;
}

.title-accent::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--teal-500), transparent);
    animation: underlineExpand 1s ease-out .5s both;
}

@keyframes underlineExpand {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 1.5rem;
    font-weight: 600;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
    animation: fadeInUp .8s ease-out .2s both;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.75;
    color: #fff;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-inline: auto;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-weight: 500;
    animation: fadeInUp .8s ease-out .4s both;
}

.hero-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 1.125rem;
    color: #fff;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    font-weight: 500;
    animation: fadeInUp .8s ease-out .6s both;
}

.hero-tagline .tagline-item {
    color: var(--teal-400);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-weight: 600;
    transition: all .2s;
}

.hero-tagline .tagline-item:hover {
    color: #5eead4;
}

.hero-tagline .divider {
    color: var(--gray-500);
    font-size: 1.25rem;
    opacity: .5;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp .8s ease-out .6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .875rem 1.75rem;
    font-size: .9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: .375rem;
    transition: all .2s;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--teal-500);
    color: var(--black);
}

.btn-primary:hover {
    background: var(--teal-600);
}

.btn-outline {
    background: transparent;
    color: var(--teal-500);
    border: 1px solid var(--teal-500);
}

.btn-outline:hover {
    background: rgba(20, 184, 166, 0.1);
    border-color: var(--teal-400);
}

.features {
    padding: 100px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-badge {
    display: inline-block;
    padding: .375rem .875rem;
    font-size: .75rem;
    font-weight: 500;
    color: var(--teal-500);
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: .25rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: .5rem;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.section-subtitle {
    font-size: 1.125rem;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-weight: 500;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: rgba(31, 41, 55, 0.5);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: .5rem;
    text-align: center;
    transition: all .25s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(20, 184, 166, 0.3);
    background: rgba(31, 41, 55, 0.7);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: .75rem;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.feature-description {
    font-size: .9375rem;
    color: #fff;
    line-height: 1.6;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    opacity: .9;
}

.values {
    padding: 100px 24px;
}

.values-content {
    max-width: 1200px;
    margin: 0 auto;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.value-card {
    background: rgba(31, 41, 55, 0.5);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: .5rem;
    transition: all .25s;
}

.value-card:hover {
    transform: translateX(4px);
    border-color: rgba(20, 184, 166, 0.3);
    background: rgba(31, 41, 55, 0.7);
}

.value-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--teal-500);
    margin-bottom: 1rem;
    line-height: 1;
}

.value-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: .75rem;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.value-content p {
    font-size: .9375rem;
    color: #fff;
    line-height: 1.6;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    opacity: .9;
}

.mission {
    padding: 100px 24px;
    text-align: center;
}

.mission-content {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(31, 41, 55, 0.5);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 2rem;
    border-radius: .5rem;
}

.mission-title {
    font-size: 2.25rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.3;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.mission-text {
    font-size: 1.125rem;
    color: #fff;
    line-height: 1.75;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-weight: 500;
}

.top-nav {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 20;
    pointer-events: none;
}

.nav-container {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
    padding: .5rem;
    display: flex;
    gap: .25rem;
    pointer-events: auto;
}

.nav-link {
    padding: .5rem 1.25rem;
    color: #fff;
    text-decoration: none;
    font-size: .875rem;
    border-radius: 9999px;
    transition: all .2s;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
    font-weight: 500;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--teal-400);
    background: rgba(20, 184, 166, 0.2);
}

.footer {
    padding: 3rem 24px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
}

.footer p {
    color: var(--gray-500);
    font-size: .875rem;
}

@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.375rem;
    }

    .hero-description {
        font-size: 1.0625rem;
    }

    .section-title {
        font-size: 2.25rem;
    }

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

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

    .hero {
        padding: 70px 32px;
    }

    .features,
    .values,
    .mission {
        padding: 80px 32px;
    }

    .top-nav {
        top: 1.25rem;
        right: 1.25rem;
    }
}

@media (max-width: 768px) {

    html,
    body {
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .video-background,
    #bg-video {
        position: fixed !important;
        inset: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        object-fit: cover !important;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-tagline {
        font-size: 1rem;
        gap: .75rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .mission-title {
        font-size: 1.75rem;
    }

    .features-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .top-nav {
        top: 1rem;
        right: 1rem;
    }

    .nav-container {
        padding: .375rem;
        gap: .125rem;
    }

    .nav-link {
        padding: .375rem .875rem;
        font-size: .75rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 16px;
    }

    .features,
    .values,
    .mission {
        padding: 60px 16px;
    }

    .hero-title {
        font-size: 2rem;
    }
}

@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: auto;
        padding: 40px 24px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-description {
        font-size: .9375rem;
        margin-bottom: 1rem;
    }
}

@media (min-width: 1025px) {
    .hero {
        padding: 100px 48px;
    }

    .features,
    .values,
    .mission {
        padding: 120px 48px;
    }

    .features-grid,
    .values-grid {
        gap: 2rem;
    }
}

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}