/* ============================================
   基础重置与变量
   ============================================ */
@font-face {
  font-family: "Roboto";
  src: url("../font/Roboto-BoldCondensed.woff2") format("woff2"),
       url("../font/Roboto-BoldCondensed.woff") format("woff"),
       url("../font/Roboto-BoldCondensed.ttf") format("truetype"),
       url("../font/Roboto-BoldCondensed.eot") format("embedded-opentype"),
       url("../font/Roboto-BoldCondensed.svg") format("svg"),
       url("../font/Roboto-BoldCondensed.otf") format("opentype");
       font-weight: 700;
}
@font-face {
  font-family: "Roboto";
  src: url("../font/Roboto-Light.woff2") format("woff2"),
       url("../font/Roboto-Light.woff") format("woff"),
       url("../font/Roboto-Light.ttf") format("truetype"),
       url("../font/Roboto-Light.eot") format("embedded-opentype"),
       url("../font/Roboto-Light.svg") format("svg"),
       url("../font/Roboto-Light.otf") format("opentype");
       font-weight: 300;
}
@font-face {
  font-family: "Roboto";
  src: url("../font/Roboto-Medium.woff2") format("woff2"),
       url("../font/Roboto-Medium.woff") format("woff"),
       url("../font/Roboto-Medium.ttf") format("truetype"),
       url("../font/Roboto-Medium.eot") format("embedded-opentype"),
       url("../font/Roboto-Medium.svg") format("svg"),
       url("../font/Roboto-Medium.otf") format("opentype");
       font-weight: 500;
}
@font-face {
  font-family: "Roboto";
  src: url("../font/Roboto-Regular.woff2") format("woff2"),
       url("../font/Roboto-Regular.woff") format("woff"),
       url("../font/Roboto-Regular.ttf") format("truetype"),
       url("../font/Roboto-Regular.eot") format("embedded-opentype"),
       url("../font/Roboto-Regular.svg") format("svg"),
       url("../font/Roboto-Regular.otf") format("opentype");
       font-weight: 400;
}

:root {
    --site-bg: #F4F6F9;
    --charcoal-dark: #1A1F2C;
    --brand-blue: #1859A3;
    --brand-blue-hover: #124682;
    --border-gray: #CBD5E1;
    --header-gray: #F0F0F0;
    --white: #FFFFFF;
    --text-dark: #2D3748;
    --text-light: #64748b;
    --container-wide: 1600px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: #071321;
    color: var(--text-dark);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body, html {
    /* background-color: #060B18 !important; */
    /* background: #111e37!important; */
    /* background: #111e37!important; */
    color: #E2E8F0 !important;
    overflow-x: hidden;
}

/* 顶部全局环境光晕（营造深蓝科技感和炫晕效果） */
/* body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 110%;
    height: 100vh;
background-image: 
    radial-gradient(circle at 15% 20%, rgba(59, 130, 246, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(168, 85, 247, 0.18) 0%, transparent 55%),
    radial-gradient(circle at 50% 40%, rgba(99, 102, 241, 0.12) 0%, transparent 60%),
    radial-gradient(circle at 10% 90%, rgba(14, 165, 233, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 98%, rgba(3, 4, 10, 0.8) 0%, transparent 70%);
    animation: glowBreath 12s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
} */

.fixed-background {position: fixed;left: 0;top: 0;width: 100%;height: 100%;overflow: hidden;z-index:-1; }
.fixed-background .gradients_container {width: 100%;height: 100%;-webkit-filter: blur(140px);filter: blur(140px);}
.fixed-background .gradients_container .g1, .fixed-background .gradients_container .g2, .fixed-background .gradients_container .g3, .fixed-background .gradients_container .g4 {position: absolute;background: radial-gradient(circle closest-side, var(--color) 0%, rgba(13, 61,111, 0) 100%) no-repeat;
mix-blend-mode: hard-light;width: 900px; height: 900px;transform-origin: center center;will-change: transform, opacity;}
.fixed-background .gradients_container .g1 {--color: #6e77f4; top: -10%;left: -10%; opacity: 0.4;}
.fixed-background .gradients_container .g2 {--color: #3488f7; bottom: -10%;right: -10%;opacity: 0.6;}
.fixed-background .gradients_container .g3 {--color: #1859a3; top: 35%;left: 40%;opacity: 0.4;}
.fixed-background .gradients_container .g4 {--color: #071c92; bottom: 20%;left: 10%;opacity: 0.4;width: 500px; height: 500px;}

@keyframes glowBreath {
    0% {
        transform: scale(1) translate(0px, 0px);
        opacity: 0.85;
    }
    50% {
        transform: scale(1.08) translate(15px, -10px); /* 整体微微放大并向右下轻移 */
        opacity: 1;
    }
    100% {
        transform: scale(0.95) translate(-10px, 15px); /* 微微缩小并向左上轻移 */
        opacity: 0.9;
    }
}
img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    font-size: 16px;
    cursor: pointer;
    border: none;
    background: none;
}

input {
    font-family: inherit;
    font-size: 16px;
}

.container-wide {
    max-width: var(--container-wide);
    margin: 0 auto;
    /* padding: 0 1rem; */
}
.container-wide .btn {width: 10rem;padding: 1rem;}

@media (min-width: 640px) {
    /* .container-wide { padding: 0 1rem; } */
}

@media (min-width: 1200px) {
    /* .container-wide { padding: 0 1rem; } */
}

.main-content {
    flex-grow: 1;
    position: relative;
}
.header-sticky {position: fixed;top: 0;left: 0;right: 0;opacity: 1;width: 100%;z-index: 20;visibility: visible;background: rgba(0, 0, 0, 0.3);box-shadow: 0 6px 4px rgba(0, 0, 0, 0.06);animation: 0.95s ease 0s normal forwards 1 running headerSlideDown;
-webkit-animation: 0.95s ease 0s normal forwards 1 running headerSlideDown;}
@keyframes headerSlideDown {0% {margin-top: -150px;}100% {margin-top: 0;}}

/* ============================================
   通用按钮与标题组件
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.875rem 1.75rem;
    transition: background-color 0.35s ease, 
                transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), 
                box-shadow 0.35s ease, 
                gap 0.35s cubic-bezier(0.25, 1, 0.5, 1);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}
.btn:hover {
    background-color: #154f92;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(21, 79, 146, 0.35);
}
.btn:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(21, 79, 146, 0.25);
}

        

@media (min-width: 640px) {
    .btn { font-size: 1.125rem; padding: 1rem 2.25rem; }
}

.btn-primary {
    background: var(--brand-blue);
    color: #fff;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}
.btn-primary:hover { background: var(--brand-blue-hover); }

.btn-ghost {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.35);
    backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.2); }

.btn-dark {
    background: var(--brand-blue);
    color: #fff;
    font-size: 1rem;
    text-transform: capitalize;
    padding: 1rem 2rem;
    box-shadow: 0 8px 25px rgba(24, 89, 163, 0.3), inset 0 0 12px rgba(56, 200, 255, 0.15);
}
@media (min-width: 640px) {
    .btn-dark { padding: 1.25rem 2.5rem; }
}
.btn-dark:hover { background: var(--brand-blue-hover);box-shadow: 0 8px 25px rgba(24, 89, 163, 0.3), inset 0 0 12px rgba(56, 200, 255, 0.15);}

.section-kicker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--brand-blue);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}
@media (min-width: 640px) {
    .section-kicker { font-size: 1rem; margin-bottom: 1rem; }
}

.kicker-line {
    display: inline-block;
    width: 1.75rem;
    height: 3px;
    background: var(--brand-blue);
}

/* ============================================
   Header (完美响应式适配小屏)
   ============================================ */
.site-header {
    position:fixed;
    left: 0;
    top: 15px;
    width: 100%;
    /* background: #fff; */
    padding: 0 4rem;
    z-index: 50;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.header-inner {
    display: flex;
    width: 100%;
    /* height: 70px; */
    justify-content: space-between;
    box-shadow: 1px 2px 10px rgb(255 255 255 / 18%);
}
.header-sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    opacity: 1;
    width: 100%;
    z-index: 20;
    visibility: visible;
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 6px 4px rgba(0, 0, 0, 0.06);
    animation: 0.95s ease 0s normal forwards 1 running headerSlideDown;
    -webkit-animation: 0.95s ease 0s normal forwards 1 running headerSlideDown;
    padding: 0;
    border-radius: 0;
}
.header-sticky .main-nav {background: rgba(0, 0, 0, 0.3);border-radius: 0;}


@keyframes headerSlideDown {
    0% {
    margin-top: -150px;
}
100% {
    margin-top: 0;
}
}

@media (min-width: 640px) {
    /* .header-inner { height: 90px; } */
}
@media (min-width: 1024px) {
    /* .header-inner { height: 120px; } */
}

.logo-area {
    /* width: 150px; */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    height: 100%;
    /* border-right: 1px solid #e5e7eb; */
}

/* @media (min-width: 640px) { .logo-area { width: 16%;} } */
/* @media (min-width: 1024px) { .logo-area { width: 15rem; } }
@media (min-width: 1280px) { .logo-area { width: 16rem; } } */

.logo-link {
    width: 100%;
    max-width: 5.6rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
@media (min-width: 640px) {
    /* .logo-link { max-width: 140px; } */
}

.desktop-nav {
    display: none;
    flex-direction: column;
    flex-grow: 1;
}

@media (min-width: 1024px) { .desktop-nav { display: flex; } }

.top-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 42px;
    /* border-bottom: 1px solid #e5e7eb; */
    background: #f4f4f4;
    padding-right: 3rem;
}

.top-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: #6b7280;
    font-size: .875em;
    font-weight: 400;
    padding: 0 1rem;
    /* border-right: 1px solid #d1d5db; */
    height: 100%;
    transition: color 0.3s;
}
.top-link:hover { color: var(--brand-blue); }
.top-link i { color: #6b7280;font-size: .975em; }

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-grow: 1;
    background: rgba(255,255,255,0.2);
    padding: .15rem 2rem;
    border-radius: 5px;
    backdrop-filter:blur(30px)
}

.nav_right {display: flex;align-items: center;}

@media (min-width: 1200px) {
    /* .main-nav { padding-left: 3.5rem; } */
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6rem;
    font-weight: 600;
    font-size: 1.125rem;
    color: #333;
    text-transform: uppercase;
    height: 100%;
    margin-right: 5rem;
}
@media (min-width: 1200px) {
    /* .nav-links { gap: 5rem;} */
}

.nav-link {
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
    transition: color 0.3s;
    color: #fff;
    white-space: nowrap;
    padding: 1rem 0;
}
.nav-link:hover { color: #38c8ff; }
.nav-link.active { color: #38c8ff; }

.nav-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: #38c8ff;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    color: #9ca3af;
}

.icon-btn {
    color: inherit;
    padding: 0.35rem;
    transition: color 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
}
.social-row .icon-btn:hover { color: var(--brand-blue); }

.search-wrap { position: relative; display: flex; align-items: center; }
.search-wrap .icon-btn i { font-size: 1.25rem;color: #fff;}

.social-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 1px solid #e5e7eb;
    padding-left: 1.25rem;
}
.social-row .icon-btn i { font-size: 1.1rem; }

.lang-wrap {
    position: relative;
    display: flex;
    align-items: center;
    padding-left: 1rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    cursor: pointer;
}

.lang-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: #fff;
    transition: color 0.3s;
}
.lang-trigger .fa-globe {font-size: 1.125rem;}
.lang-trigger .fa-chevron-down {font-size: 1rem;}
/* .lang-wrap:hover .lang-trigger { color: var(--brand-blue); } */

.lang-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    width: 14rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
    z-index: 50;
    padding: 0.25rem 0;
    max-height: 380px;
    overflow-y: auto;
}
.lang-wrap:hover .lang-menu { display: block; }

.lang-menu a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    color: #4b5563;
    transition: all 0.2s;
}
.lang-menu a:hover { background: #f9fafb; color: var(--brand-blue); }

.lang-menu a img {
    width: 20px;
    height: 14px;
    object-fit: cover;
    border-radius: 2px;
    flex-shrink: 0;
}

.mobile-toggle-wrap {
    display: flex;
    align-items: center;
    padding: 0 1rem;
    margin-left: auto;
}
@media (min-width: 1024px) { .mobile-toggle-wrap { display: none; } }

@media screen and (max-width:1600px) {
    .nav-links {gap: 4rem;margin-right: 4rem;}
}

@media screen and (max-width:1200px) {
    .nav-links {gap: 1.6rem;font-size: 1rem;}
}

.mobile-toggle {
    color: #1f2937;
    padding: 0.5rem;
    border-radius: 0.5rem;
    font-size: 1.5rem;
}

.mobile-menu {
    display: none;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 1.5rem;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
    position: absolute;
    top: 100%;
    width: 100%;
    left: 0;
    z-index: 100;
}
.mobile-menu.open { display: block; }
@media (min-width: 1024px) { .mobile-menu { display: none !important; } }

.mobile-link {
    display: block;
    font-weight: 700;
    font-size: 16px;
    color: #1f2937;
    padding: 0.65rem 0;
    border-bottom: 1px solid #f3f4f6;
    transition: color 0.3s;
}
.mobile-link:hover, .mobile-link.active { color: var(--brand-blue); }

.mobile-footer {
    padding-top: 1rem;
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mobile-footer .social-row { border-left: none; padding-left: 0; gap: 1rem; }

.lang-static {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
    font-weight: 600;
    font-size: 0.95rem;
}

/* ============================================
   Hero Banner
   ============================================ */
.hero-section {
    position: relative;
    overflow: hidden;
    color: #fff;
}

.hero-gradient {
    position: absolute;
    inset: 0;
}
@keyframes heroTextIn {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

.hero-section .banner-swiper .swiper-slide img {
    width: 100%;
    /* height: 480px; */
    object-fit: cover;
}
@media (min-width: 640px) {
    /* .hero-section .banner-swiper .swiper-slide img { height: 600px; } */
}
@media (min-width: 1024px) {
    /* .hero-section .banner-swiper .swiper-slide img { height: 700px; } */
}

.hero-content {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 10;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 3rem 1rem;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    /* justify-content: center; */
}
@media (min-width: 640px) { .hero-content { padding: 8rem 2rem; } }
@media (min-width: 1600px) { .hero-content { padding:13rem 10rem;} }

.hero-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 2rem;
    max-width: 55%;
    background: linear-gradient(2deg, #ffffff36, #ffffff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    opacity: 0;
    animation: heroTextIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@media (min-width: 640px) { .hero-title { font-size: 3rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 56px; margin-bottom: 3.5rem; } }

.hero-actions { 
    display: flex; 
    flex-direction: column; 
    gap: 1rem; 
    opacity: 0;
    animation: heroTextIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
}
@media (min-width: 640px) { 
    .hero-actions { flex-direction: row; gap: 1.25rem; } 
}

.swiper-button-next, .swiper-button-prev {
    color: var(--brand-blue) !important;
    background: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border: 1px solid var(--border-gray);
}
@media (min-width: 640px) {
    .swiper-button-next, .swiper-button-prev { width: 50px; height: 50px; }
}
.swiper-button-next::after, .swiper-button-prev::after {
    font-size: 0.9rem !important;
    font-weight: 900;
}
@media (min-width: 640px) {
    .swiper-button-next::after, .swiper-button-prev::after { font-size: 1.1rem !important; }
}

.about-section {
            position: relative;
            padding: 5rem 1.25rem; /* 100px 20px */
            background: url(images/about_bg.png) top center no-repeat;
            background-size: contain;
            background-position: top center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .about-section .news-title,.about-section .section-kicker{color:#fff}
        .about-section .kicker-line {background: #fff}
        .about-section .btn-dark {background: rgba(255,255,255,.1);box-shadow: none;}
        .about-section .btn-dark:hover {background:var(--brand-blue)}

        /* Light overlay to ensure high text contrast over the background image */
        .about-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url(images/about_b.jpg);
            background-position: bottom center;
            background-size: contain;
            background-repeat: no-repeat;
            /* background: linear-gradient(180deg, #0b142d 0%, #0c213f 30%, #12325c 65%, #0f1f39 100%); */
            /* background: linear-gradient(180deg, #0b142d 0%, #0c213f 30%, #12325c 65%, #0f1f3924 100%); */
            background: linear-gradient(180deg, #0b142d 0%, #1b3e6f 30%, #1a3d6b 65%, #152e57 100%);
            z-index: 1;
            top: 0;
            left: 0;
            opacity: .5;
        }

        .about-container {
            max-width: 100rem; /* 1600px */
            margin: 0 auto;
            position: relative;
            z-index: 2;
            width: 100%;
            padding-left: clamp(1rem, 2vw, 3rem);
            padding-right: clamp(1rem, 2vw, 3rem);
        }
        .video-section {max-width: 100rem;margin: 0 auto;}
        
        .about-header {display: flex;align-items: center;justify-content:space-between;padding-bottom: 2rem;border-bottom: 1px solid rgba(255,255,255,.1);margin-bottom: 3rem;}

        /* Main Grid: Title on Left, Text & Metrics Stack on Right */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem; /* 48px */
            align-items: start;
        }

        @media (min-width: 992px) {
            .about-grid {
                grid-template-columns: 4fr 8fr;
                gap: 4rem; /* 64px */
            }
        }

        @media (min-width: 1440px) {
            .about-grid {
                grid-template-columns: 6.5fr 5.5fr;
                gap: 8rem; /* 80px */
            }
        }

        .about-title-box {
            display: flex;
            flex-direction: column;
            gap: 0.75rem; /* 12px */
        }

        .about-subtitle {
            font-size: 0.9375rem; /* 15px */
            font-weight: 700;
            color: var(--primary-color);
        }

        .about-main-heading {
            font-size: clamp(1.375rem, 2vw, 3rem);
            font-weight: 800;
            text-transform: uppercase;
            color:#1A1F2C;
            line-height: 1.35;
        }

        /* Right Column wrapper containing both paragraphs and statistics */
        .about-content-right {
            display: flex;
            flex-direction: column;
            gap: 2.5rem; /* 40px */
        }

        .about-text-single {
            display: flex;
            flex-direction: column;
            gap: 1rem; /* 16px */
            color:#fff;
            font-weight: 300;
        }

        .about-paragraph {
            font-size: clamp(1.125rem, 1.1vw, 1rem); /* Responsive fluid font size */
            color:#fff;
            line-height: 1.75;
            text-align: left;
        }

        /* Metrics List arranged in a single horizontal row */
        .metrics-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem; /* 24px */
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            padding: 2rem; /* 32px */
            border-radius: 1.25rem; /* 20px */
            border: 1px solid var(--border-color);
            box-shadow: 0 0.625rem 1.875rem rgba(0, 0, 0, 0.05);
        }

        @media (min-width: 768px) {
            .metrics-list {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                padding: 2rem 2.5rem;
            }
        }

        .metric-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 1.25rem; /* 20px */
            border-bottom: 1px solid var(--border-color);
            flex: 1;
        }

        @media (min-width: 768px) {
            .metric-item {
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding-bottom: 0;
                border-bottom: none;
                border-bottom: 1px solid var(--border-color);
                padding-right:2rem;
                margin-bottom: 1.5rem;
                padding-left: 2rem;
            }
            .metric-item:last-child {
                border-right: none;
                padding-right: 0;
                margin-right: 0;
            }
        }

        .metric-value-group {
            display: flex;
            align-items: baseline;
            gap: 0.125rem;
            margin-bottom: 0.5rem;
        }

        .metric-number {
            font-size: clamp(2rem, 3vw, 2.75rem);
            font-weight: 900;
            color: #fff;
            line-height: 1;
            display: inline-block;
            transition: transform 0.3s ease;
        }

        .metric-number.jump {
            transform: scale(1.15);
        }

        .metric-unit {
            font-size: 1.5rem;
            font-weight: 500;
            margin-left: 0.45rem;
            color: #fff;
        }

        .metric-label-group {
            display: flex;
            align-items: center;
            gap: 0.75rem; /* 12px */
            text-align: right;
        }

        @media (min-width: 768px) {
            .metric-label-group {
                flex-direction: row-reverse;
                justify-content: space-between;
                width: 100%;
                text-align: left;
            }
        }

        .metric-icon {
            width: 3.9rem; /* 36px */
            height: 3.9rem; /* 36px */
            border-radius: 0.5rem; /* 8px */
            background-color: rgba(255,255,255,1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9375rem; /* 15px */
            flex-shrink: 0;
            margin-bottom: 1rem;
            box-shadow: 0 0 10px rgb(24 89 163 / 15%);
        }
        .metric-icon img {width: 2.125rem;}    /* filter: brightness(0) invert(1);  */
        .metric-title {
            font-size: 1rem; /* 14px */
            font-weight: 500;
            color: #fff;
        }




/* ============================================
   Certificates
   ============================================ */
.cert-section { padding: 0; background: #ffffff; overflow: hidden; position: relative; }
.cert-hero-banner {
    background-color: var(--brand-blue);
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    padding: 3rem 1rem 6rem 1rem;
    color: #fff;
    position: relative;
}
@media (min-width: 640px) { .cert-hero-banner { padding: 4rem 2rem 7rem 2rem; } }
@media (min-width: 1024px) { .cert-hero-banner { padding: 4rem 3rem 8rem 3rem; } }

.cert-hero-content { max-width: var(--container-wide); margin: 0 auto; position: relative; z-index: 10;display: flex;align-items: center;justify-content: space-between;}
.cert-hero-content .btn-dark {background: #fff;color: var(--brand-blue-hover);}
.cert-hero-content .cert_l {flex-shrink: 0;width: 75%;}

.cert-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 3rem;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.15;
}
/* @media (min-width: 640px) { .cert-title { font-size: 40px; } }
@media (min-width: 1024px) { .cert-title { font-size: 48px; } } */

.cert-desc { color: rgba(255, 255, 255, 0.9); font-size: 1rem; line-height: 1.6; font-weight: 300;}
/* @media (min-width: 640px) { .cert-desc { font-size: 18px; } } */

.cert-carousel-container {
    max-width: var(--container-wide);
    margin: -3.5rem auto 3rem auto;
    padding: 0 1rem;
    position: relative;
    z-index: 20;
}

@media (min-width: 640px) {
    .cert-carousel-container { margin: -5rem auto 3rem auto; padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
    .cert-carousel-container { margin: -6.5rem auto 3rem auto; padding: 0 2rem; }
}

@media screen and (max-width:992px) {
    .cert-hero-content {display: block;}
    .cert-hero-content .cert_l {width: 100%;}
    .cert-hero-content .btn-dark {display: none;}
}

.certificates-swiper { width: 100%; overflow: hidden !important; padding: 1rem 0; }
.certificates-swiper .swiper-wrapper { align-items: center; }
.certificates-swiper .swiper-slide { height: auto; transition: transform 0.3s ease; }

.cert-card {
    background: #fff;
    padding: 10px;
    border: 1px solid #CBD5E1;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}
.cert-card:hover { box-shadow: 0 20px 35px rgba(0, 0, 0, 0.12); border-color: var(--brand-blue); }

.cert-img-wrap {
    width: 100%;
    aspect-ratio: 1 / 1.35;
    background: #f8fafc;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-img-wrap img { width: 100%; height: 100%; object-fit: cover; }

.certificates-swiper .swiper-pagination {
    position: relative;
    margin-top: 3.5rem;
    display: flex;
    justify-content: center;
    gap: 8px;
}
.certificates-swiper .swiper-pagination-bullet {
    width: 24px;
    height: 4px;
    background-color: #CBD5E1;
    border-radius: 2px;
    opacity: 1;
    transition: all 0.3s ease;
    margin: 0 !important;
}
@media (min-width: 640px) {
    .certificates-swiper .swiper-pagination-bullet { width: 30px; }
}
.certificates-swiper .swiper-pagination-bullet-active { background-color: var(--brand-blue); }



/* ============================================
   Products
   ============================================ */
.products-section {
    background-image:url(images/bg_ser.png);
    overflow: hidden;
    /* background: linear-gradient(180deg,
        var(--dark-base) 0%,
        var(--dark-elev) 18%,
        var(--dark-elev) 82%,
        #131721 100%); */
    padding: 3rem 1rem;
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: bottom center;
}
@media (min-width: 640px) {
    .products-section { padding: 3rem 2rem; }
}
@media (min-width: 1024px) {
    .products-section { padding: 2rem 3rem .3rem .3rem; }
}
.products-section::before {content: "";display: block;width: 100%;height: 100%;background: radial-gradient(58% 52% at 50% 50%, rgba(24, 89, 163, 0.14), transparent 72%);position: absolute;left: 0;top: 0;}

.products-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.product-content-left {
    width: 100%;
    z-index: 10;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    margin-bottom: 2rem;
}
@media (min-width: 1024px) {
    .product-content-left { width: 31%; margin-bottom: 0; padding-right: 3rem;}
}

.product-main-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 800;
    font-size: 2.25rem;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    text-shadow: 0 0 20px rgba(56, 200, 255, 0.2);
}
@media (min-width: 640px) {
    .product-main-title { font-size: 3rem; margin-bottom: 2rem; }
}

.product-features { margin-bottom: 2rem;transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;}
@media (min-width: 640px) { .product-features { margin-bottom: 3rem; } }

.product-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #7d8ca3;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}
@media (min-width: 640px) { .product-feature-item { font-size: 1rem; margin-bottom: 1rem; } }
.product-feature-item i { color: var(--brand-blue); font-size: 0.5rem; }

.btn-read-more-exact {
    display: inline-flex;
    align-items: center;
    background: #000;
    color: #fff;
    font-size: 16px;
    height: 48px;
    position: relative;
    text-decoration: none;
    overflow: hidden;
    transition: opacity 0.3s;
    padding: 0;
}
@media (min-width: 640px) {
    .btn-read-more-exact { font-size: 18px; height: 54px; }
}
.btn-read-more-exact:hover { opacity: 0.85; }

.btn-red-part {
    background: var(--brand-blue);
    width: 54px;
    height: 100%;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 68% 100%, 0 100%);
    flex-shrink: 0;
}
@media (min-width: 640px) { .btn-red-part { width: 63px; } }

.btn-red-bg {
    position: absolute;
    inset: 0;
    background: var(--brand-blue);
    clip-path: polygon(0 0, 100% 0, 64% 100%, 0 100%);
}

.btn-circle-icon {
    position: absolute;
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}
@media (min-width: 640px) {
    .btn-circle-icon { left: 35px; width: 32px; height: 32px; }
}

.btn-circle-icon::before,
.btn-circle-icon::after {
    content: '';
    position: absolute;
    background: var(--brand-blue);
}
.btn-circle-icon::before { width: 10px; height: 2px; }
.btn-circle-icon::after { width: 2px; height: 10px; }
@media (min-width: 640px) {
    .btn-circle-icon::before { width: 12px; }
    .btn-circle-icon::after { height: 12px; }
}

.btn-text-part {
    padding: 0 15px 0 20px;
    display: flex;
    align-items: center;
    background: #000;
    clip-path: polygon(15px 0, 100% 0, 100% 100%, 0 100%);
    height: 100%;
    margin-left: -4px;
    position: relative;
    z-index: 1;
}
@media (min-width: 640px) {
    .btn-text-part { padding: 0 20px 0 25px; }
}

.product-custom-pagination {
    display: flex;
    gap: 0.5rem;
    margin-top: 2rem;
}
@media (min-width: 640px) {
    .product-custom-pagination { margin-top: 4rem; }
}
.custom-bullet {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 2px solid var(--brand-blue);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
}
.custom-bullet.active {
    background: var(--brand-blue);
    box-shadow: 0 0 0 3px rgba(24, 89, 163, 0.2);
}

.product-image-center {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    z-index: 5;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    margin-bottom: 2rem;
}
@media (min-width: 1024px) {
    .product-image-center { width: 46%; margin-bottom: 0; }
}
.product-image-center img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    filter: drop-shadow(0 20px 30px rgba(0,0,0,0.15));
}

.product-nav-right {
    width: 100%;
    z-index: 10;
    position: relative;
}
@media (min-width: 1024px) {
    .product-nav-right { width: 23%;padding-left: 3rem;}
}

/* .product-nav-right::before {
    content: '';
    position: absolute;
    right: 0;
    top: 20px;
    bottom: 20px;
    width: 1px;
    background: #d1d5db;
    z-index: 1;
} */

.v-nav-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}
@media (min-width: 1024px) {
    .v-nav-list { gap: 2rem; }
}

.v-nav-item {
    position: relative;
    text-align: right;
    padding: 1.25rem 2rem 1.25rem 1.5rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: #94a3b8;
    cursor: pointer;
    border-radius: 12px;
    background: rgb(15 26 46 / 11%);
    border: 1px solid rgb(255 255 255 / 3%);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    box-shadow: 0 4px 11px rgb(16 29 43 / 31%);
}
.v-nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(56, 200, 255, 0.12), transparent);
    transition: 0.5s;
}
.v-nav-item:hover::before {
    left: 100%;
}
@media (min-width: 1024px) {
    .v-nav-item { font-size: 1.25rem; }
}
/* .v-nav-item:hover { color: var(--brand-blue);font-size: 1.8rem;transition: all .35s ease;} */
/* .v-nav-item.active { color: var(--brand-blue);font-size: 1.8rem;transition: all .35s ease;} */

.v-nav-item.active {
    color: #38c8ff;
    /* background: linear-gradient(135deg, rgb(24 89 163 / 28%), rgb(24 89 163 / 34%));
    border-color: #1859a35c;
    transform: translateX(-12px) scale(1.05);
    box-shadow: 1px 5px 20px rgb(24 89 163 / 35%), inset 0 0 20px rgb(24 89 163 / 30%); */
    background: rgba(24, 89, 163, 0.2);
    border-color: rgba(56, 200, 255, 0.35);
    transform: translateX(-8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(24, 89, 163, 0.3), inset 0 0 12px rgba(56, 200, 255, 0.15);
}
.v-nav-item:hover {
        color: #38c8ff;
    background: rgba(24, 89, 163, 0.2);
    border-color: rgba(56, 200, 255, 0.35);
    transform: translateX(-8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(24, 89, 163, 0.3), inset 0 0 12px rgba(56, 200, 255, 0.15);
}

.v-nav-item::after {
    content: '';
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%) translateX(50%);
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 10px solid transparent;
    transition: border-color 0.3s ease;
}
.v-nav-item.active::after { border-left-color: #38c8ff; }

@media (max-width: 1023px) {
    .product-nav-right { max-width: 100%; margin-top: 1.5rem; }
    .product-nav-right::before { top: 50%; bottom: auto; left: 0; right: 0; width: 100%; height: 1px; }
    .v-nav-list { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 0.75rem 1.5rem; }
    .v-nav-item { padding-right: 0; padding-bottom: 0.75rem; text-align: center; font-size: 0.95rem; }
    .v-nav-item::after {
        right: 50%; top: auto; bottom: 0; transform: translateX(50%) translateY(50%);
        border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 10px solid transparent;
    }
    .v-nav-item.active::after { border-top-color: var(--brand-blue); border-left-color: transparent; }
}


#product-kicker, 
#product-main-title, 
#product-features, 
#product-main-image {
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    transform: translateY(0);
}

/* 定义淡出时的状态（向下沉一点点，带点呼吸感） */
.fade-out {
    opacity: 0 !important;
    transform: translateY(10px) !important;
}


/* ============================================
   Projects
   ============================================ */
.projects-section { 
    position: relative; 
    padding: 4rem 1rem; 
    /* background: #181A1F;  */
    overflow: hidden;
    background-image: url(images/case_bg.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    
}
@media (min-width: 640px) {
    .projects-section { padding: 6rem 2rem 5rem 2rem; }
}
@media (min-width: 1024px) {
    .projects-section { padding: 6rem 3rem 5rem 3rem; }
}
.projects-section::before {content: "";display: block;width: 100%;height: 100%;background: linear-gradient(180deg, #132447 0%, rgb(19 23 33 / 70%) 18%, rgba(19, 23, 33, 0.55) 82%, rgb(17 35 69) 100%);position: absolute;left: 0;top: 0;backdrop-filter: blur(16px);}
.projects-dots {
    position: absolute;
    right: 0;
    top: 0;
    width: 33.333%;
    height: 100%;
    opacity: 0.1;
    pointer-events: none;
    background-image: radial-gradient(#ffffff 1px, transparent 1px);
    background-size: 20px 20px;
}
.projects-inner { position: relative; z-index: 10; }
.projects-header-row {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}
@media (min-width: 768px) {
    .projects-header-row {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
        margin-bottom: 3.5rem;
    }
}
.projects-header-text { text-align: center; }
@media (min-width: 768px) { .projects-header-text { text-align: left; } }

.projects-kicker { color: #fff; }
.projects-kicker .kicker-line { background: #fff; }

.projects-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 32px;
    color: #fff;
    line-height: 1.15;
    margin: 0;
    text-shadow: 0 0 20px rgba(56, 200, 255, 0.2);
}
@media (min-width: 640px) { .projects-title { font-size: 40px; } }
@media (min-width: 1024px) { .projects-title { font-size: 48px; } }

.projects-carousel-wrap { position: relative; width: 100%; }
.projects-carousel-swiper { width: 100%; overflow: hidden !important; padding-bottom: 3rem; }
.project-slide { height: auto; }
.project-card {
    height: 360px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: #111;
}
@media (min-width: 640px) {
    .project-card { height: 420px; }
}
.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s;
}
.project-card:hover img { transform: scale(1.05); }
.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.project-card:hover .project-overlay { opacity: 1; }
/* .projects-carousel-swiper .swiper-slide.swiper-slide-active .project-overlay  {opacity: 1;} */
.project-corner {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 6rem;
    height: 6rem;
    background: var(--brand-blue);
    clip-path: polygon(0 100%, 0 0, 100% 100%);
}
.project-info {
    position: relative;
    z-index: 10;
    transform: translateY(1rem);
    transition: transform 0.3s;
}
.project-card:hover .project-info { transform: translateY(0); }
.project-name {
    display: inline-block;
    background: #fff;
    color: #0f172a;
    font-weight: 700;
    padding: 0.7rem 1.1rem;
    font-size: 1rem;
    margin-bottom: 0.25rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}
.project-card:hover{border-color: rgba(56, 200, 255, 0.5) !important;
    box-shadow: 0 12px 40px rgba(43, 107, 255, 0.25), inset 0 1px 2px rgba(56, 200, 255, 0.4);
    transform: translateY(-4px);}
@media (min-width: 640px) { .project-name { font-size: 1.125rem; } }

.project-company {
    display: inline-block;
    background: rgba(255,255,255,0.9);
    color: #475569;
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}
@media (min-width: 640px) { .project-company { font-size: 1rem; } }

.projects-carousel-wrap .swiper-pagination {
    position: absolute;
    bottom: 0 !important;
    left: 50% !important;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    gap: 6px;
    width: auto !important;
}
.projects-carousel-wrap .swiper-pagination-bullet {
    width: 24px;
    height: 4px;
    background-color: #adb2bd36;
    border-radius: 2px;
    opacity: 1;
    transition: all 0.3s ease;
    margin: 0 !important;
}
@media (min-width: 640px) {
    .projects-carousel-wrap .swiper-pagination-bullet { width: 30px; }
}
.projects-carousel-wrap .swiper-pagination-bullet-active { background-color: #fff; }

/* ============================================
   News
   ============================================ */
.news-section { padding: 3rem 1rem;}
/* background: linear-gradient(180deg,
        rgba(10, 15, 28, 0) 0%,
        rgba(11, 26, 48, 0.4) 62%,
        rgba(2, 23, 48, 0.6) 100%); */
@media (min-width: 640px) { .news-section { padding: 5rem 2rem; } }
@media (min-width: 1024px) { .news-section { padding: 5rem 3rem; } }

.news-head { margin-bottom: 2rem; }
@media (min-width: 640px) { .news-head { margin-bottom: 3rem; } }

.news-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 32px;
    color: #000;
    text-shadow: 0 0 20px rgba(56, 200, 255, 0.2);
    line-height: 1.3;
}
@media (min-width: 640px) { .news-title { font-size: 40px; } }
@media (min-width: 1024px) { .news-title { font-size: 48px; } }

.news-divider { width: 100%; border-bottom: 1px solid #d7d7d796; margin-top: 1.5rem; }
@media (min-width: 640px) { .news-divider { margin-top: 2rem; } }

.news-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) {
    .news-grid { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}
@media (min-width: 1024px) { .news-grid { gap: 2rem; } }

.news-card { display: flex; flex-direction: column; cursor: pointer;padding: 1.2em 1.2rem 1.5rem 1.2rem;background: rgba(255,255,255,1);border-radius: 10px;}
.news-image-wrap { position: relative; margin-bottom: 1.25rem; overflow: hidden; }
.news-image-wrap > img {
    width: 100%;
    transition: transform 0.5s;
}
.news-card:hover .news-image-wrap > img { transform: scale(1.05); }

.news-date {
    position: absolute;
    right: 0;
    bottom: 0;
    background: #fff;
    padding: 0.5rem 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
@media (min-width: 640px) {
    .news-date { padding: 0.75rem 1rem; }
}
.news-day {
    font-family: 'Roboto', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--brand-blue);
    line-height: 1;
    margin-bottom: 0.15rem;
}
@media (min-width: 640px) { .news-day { font-size: 1.875rem; margin-bottom: 0.25rem; } }
.news-month { font-size: 0.75rem; font-weight: 700; color: #4b5563; text-transform: uppercase; }
@media (min-width: 640px) { .news-month { font-size: 0.875rem; } }

.news-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: #1f2937;
    text-transform: capitalize;
    margin-bottom: 0.75rem;
}
@media (min-width: 640px) { .news-meta { font-size: 1rem; margin-bottom: 1rem; } }
.news-author { color: var(--brand-blue); transition: color 0.3s;font-weight: 600;}
.news-author:hover { color: var(--brand-blue-hover); }
.meta-dot { color: #d1d5db; }
.news-comments { transition: color 0.3s;color: #7c8da1;}
.news-comments:hover { color: var(--brand-blue); }

.news-card-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 20px;
    line-height: 1.3;
    color: #000;
    margin-bottom: 0.75rem;
    transition: color 0.3s;
}
@media (min-width: 640px) { .news-card-title { font-size: 24px; margin-bottom: 1rem; } }
.news-card:hover .news-card-title { color: var(--brand-blue); }

.news-excerpt {
    color: #182135;
    font-size: 1rem;
    line-height: 1.55;
    flex-grow: 1;
}
/* @media (min-width: 640px) { .news-excerpt { font-size: 18px; margin-bottom: 2rem; } } */

.news-read {
    font-family: 'Roboto', sans-serif;
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    color: #111827;
    font-size: 1rem;
    text-transform: capitalize;
}
@media (min-width: 640px) { .news-read { font-size: 1rem; } }

.read-arrow {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: #111827;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: background 0.3s;
}
@media (min-width: 640px) {
    .read-arrow { width: 2rem; height: 2rem; font-size: 0.875rem; }
}
.news-card:hover .read-arrow { background: var(--brand-blue); }

/* ============================================
   Footer
   ============================================ */
.site-footer {
    position: relative;
    color: #fff;
    /* background-image: url('images/foot_bg.jpg'); */
    background-size: cover;
    background-position: left bottom;
    background: linear-gradient( 358deg, #061a36, transparent);
    background-image: url(images/fot-b.png);
    background-repeat: no-repeat;
    padding: 5rem 3rem 0 3rem;
}
/* .footer-overlay { position: absolute; inset: 0; background: rgb(2 23 48 / 85%); } */
.footer-inner { 
    position: relative; 
    z-index: 10;
}
@media (min-width: 640px) {
    .site-footer { padding: 4rem 2rem 0 2rem; }
}
@media (min-width: 1024px) {
    .site-footer { padding: 4rem 3rem 0 3rem; }
}


.footer-newsletter {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    gap: 1.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
@media (min-width: 1024px) {
    .footer-newsletter { flex-direction: row; align-items: center; gap: 2rem; padding-bottom: 3.5rem; }
}

.newsletter-info { display: flex; align-items: center; gap: 1rem; }
@media (min-width: 640px) { .newsletter-info { gap: 1.5rem; } }

.newsletter-info > i { font-size: 2.5rem; color: rgba(255,255,255,0.9); flex-shrink: 0; }
@media (min-width: 640px) { .newsletter-info > i { font-size: 3rem; } }

.newsletter-info h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.35rem;
    text-shadow: 0 0 20px rgba(56, 200, 255, 0.2);
}
@media (min-width: 640px) { .newsletter-info h3 { font-size: 1.75rem; margin-bottom: 0.65rem; } }

.newsletter-info p { font-size: 14px; color: #d1d5db; }
@media (min-width: 640px) { .newsletter-info p { font-size: 16px; } }

.newsletter-form { display: flex; width: 100%; flex-direction: column; gap: 0.75rem; }
@media (min-width: 640px) { .newsletter-form { flex-direction: row; gap: 0; } }
@media (min-width: 1024px) { .newsletter-form { width: auto; } }

.newsletter-form input {
    width: 100%;
    background: #fff;
    color: #1f2937;
    padding: 0.875rem 1rem;
    font-size: 15px;
    outline: none;
    border: none;
}
@media (min-width: 640px) {
    .newsletter-form input { padding: 1rem 1.25rem; font-size: 16px; }
}
@media (min-width: 1024px) { .newsletter-form input { width: 320px; } }

.newsletter-form button {
    background: var(--brand-blue);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    padding: 0.875rem 1rem;
    transition: background 0.3s;
    white-space: nowrap;
}
@media (min-width: 640px) {
    .newsletter-form button { padding: 1rem 1.2rem; font-size: 16px; }
}
.newsletter-form button:hover { background: var(--brand-blue-hover); }

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 3rem;
    padding-bottom: 2.5rem;
}
@media (min-width: 640px) { 
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 3.5rem; } 
}
@media (min-width: 1024px) { 
    .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; padding-top: 5rem; padding-bottom: 3.5rem; } 
}
.footer-grid .footer-col:first-child { width: 100%; }
@media (min-width: 1024px) {
    .footer-grid .footer-col:first-child { width: auto; }
}

.footer-col h4 {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
}
@media (min-width: 640px) {
    .footer-col h4 { font-size: 1.55rem; margin-bottom: 1.8rem; }
}

.footer-contact { color: #a7a8a9; font-size: 15px; line-height: 1.6; margin-bottom: 1.25rem; }
@media (min-width: 640px) { .footer-contact { font-size: 16px; margin-bottom: 1.5rem; } }
.footer-contact p { margin-bottom: 0.5rem;font-weight: 300;color: #b2bfc8}
.footer-phone { color: #fff; font-weight: 500; padding-top: 0.5rem; }
.footer-email { color: #fff; }

.footer-social { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.footer-social a {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: #fff;
    color: #111827;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all 0.3s;
}
.footer-social a:hover { background: var(--brand-blue); color: #fff; }

.footer-links { display: flex; flex-direction: column; gap: 0.85rem; font-size: 15px; color: #a7a8a9; }
@media (min-width: 640px) {
    .footer-links { gap: 1.1rem; font-size: 16px; }
}
.footer-links a { display: flex; align-items: center; gap: 0.5rem; transition: color 0.3s;font-weight: 300;color: #b2bfc8; }
.footer-links a:hover { color: var(--brand-blue); }
.footer-links i { font-size: 0.75rem; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-weight: 300;
    text-align: center;
}
@media (min-width: 768px) { 
    .footer-bottom { flex-direction: row; text-align: left; } 
}
.footer-bottom p { font-size: 14px; color: #b2bfc8;}
@media (min-width: 640px) { .footer-bottom p { font-size: 15px; } }

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 14px;
    color: #b2bfc8;
}
@media (min-width: 640px) { .footer-bottom-links { font-size: 15px; } }
.footer-bottom-links a { color: #9ca3af; transition: color 0.3s; text-decoration: none; }
.footer-bottom-links a:hover { color: #fff; }
.footer-link-sep { color: #4b5563; user-select: none; }


/* partner_section */
.partner_section {padding:5rem 0;overflow: hidden;text-align: center;background:linear-gradient(to bottom, #1329515e, rgb(15 26 46 / 0));}
.partner_section .news-head {margin-bottom: 2rem;}
.partner_section .section-kicker {justify-content: center;}
.partner_section .swiper-slide {padding:0 1rem;margin:.625rem 0}
.partner_section .swiper-slide .li {background: rgb(15 26 46 / 21%);padding: 1rem;display: flex;align-items: center;justify-content: center;height: 150px;transition: all .3s ease;overflow: hidden;border: 1px solid rgb(255, 255, 255,.04);border-radius: 5px;transition: all .3s ease}
.partner_section .swiper-slide .li img {width: 11rem;transition: all .3s ease;}
.partner_section .swiper-slide .li:hover img {transform: scale(1.04);transition: all .3s ease;}
.partner_section .partner_scrollbar .swiper-wrapper {transition-timing-function: linear !important;}
.partner_section .swiper-slide .li:hover {border-color: rgba(56, 200, 255, 0.35) !important;
    box-shadow: 0 12px 40px rgba(43, 107, 255, 0.15), inset 0 1px 2px rgba(56, 200, 255, 0.3);
    transform: translateY(-2px);transition: all .3s ease}

.video-section {
    position: relative;
    height: 40rem;
    overflow: hidden;
    border-radius: 10px;
    /* margin-left: clamp(1rem, 2vw, 3rem);
    margin-right: clamp(1rem, 2vw, 3rem); */
    margin-top: 3rem;
    z-index: 9;
}

        /* Background Video styling to cover full screen */
        .hero-bg-video {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            min-width: 100%;
            min-height: 100%;
            width: auto;
            height: auto;
            object-fit: cover;
            z-index: 1;
        }

        /* Dark overlay matching screenshot gradient */
        /* .video-overlay {
            position: absolute;
            inset: 0;
            z-index: 2;
        } */
        /* .video-overlay img {width: 100%;height: 100%;object-fit: cover;} */
        .video-overlay::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 31, 56, 0.65) 0%, rgba(2, 162, 227, 0.3) 100%), rgba(0, 0, 0, 0.35);
            z-index: 2;
            opacity: .3;
        }
        /* Content container positioned centered / left-aligned as per screenshot */
        .video-content {
            position: absolute;
            z-index: 3;
            max-width: 1600px;
            width: 100%;
            margin: 0 auto;
            left: 5rem;
            bottom: 3rem;
            /* padding: 0 0 8rem 0; */
            /* display: flex; */
            /* flex-direction: column; */
            /* justify-content: end; */
        }

        .video-title {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            font-weight: 800;
            line-height: 1.15;
            color:#fff;
            margin-bottom: 1.5rem;
            max-width: 800px;
        }

        /* Watch button with play icon matching screenshot */
        .watch-btn-group {
            display: inline-flex;
            align-items: center;
            gap: 1rem;
            background: transparent;
            border: none;
            cursor: pointer;
            text-decoration: none;
            padding: 0.5rem 0;
            transition: transform 0.3s ease;
            width: fit-content;
        }

        .watch-btn-group:hover {
            transform: scale(1.05);
        }

        .watch-text {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            color: #fff;
        }

        .watch-icon-circle {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 1.25rem;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            transition: background-color 0.3s ease;
        }

        .watch-btn-group:hover .watch-icon-circle {
            background-color: var(--brand-blue);
        }

        /* ===== Video Modal Popup =====. */
        .video-modal {
            position: fixed;
            inset: 0;
            z-index: 100;
            background-color: rgba(0, 0, 0, 0.85);
            backdrop-blur: blur(8px);
            display: none;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .video-modal.active {
            display: flex;
            opacity: 1;
        }

        .modal-container {
            position: relative;
            width: 100%;
            max-width: 960px;
            aspect-ratio: 16/9;
            background: #000;
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .modal-container video {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .close-modal-btn {
            position: absolute;
            top: -3rem;
            right: 0;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            font-size: 1.25rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease;
        }

        .close-modal-btn:hover {
            background-color: rgba(255, 255, 255, 0.3);
        }