/* Base Reset & Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --color-dark-bg: #0f1c30;
    --color-darker: #091220;
    --color-primary-blue: #1677ff;
    --color-blue-light: #42a5ff;
    --color-white: #ffffff;
    --color-gray-light: #f4f7fa;
    --color-text-dark: #222831;
    --color-text-gray: #667080;
    --transition-base: all 0.3s ease;
}
body {
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--color-text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}
ul {
    list-style: none;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display:block;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
/*     padding: 0 24px; */
}
.btn {
    display: inline-flex;
    align-items: center;
    gap:8px;
    padding:12px 24px;
    border-radius:4px;
    font-weight:600;
    font-size:14px;
    transition: var(--transition-base);
    border:none;
    cursor:pointer;
}
.btn-primary {
    background-color: var(--color-primary-blue);
    color: var(--color-white);
}
.btn-primary:hover {
    background-color:#0f64dd;
}
.btn-outline-dark {
    background-color: transparent;
    color: var(--color-white);
    border:1px solid rgba(255,255,255,0.45);
}
.btn-outline-dark:hover {
    background-color:rgba(255,255,255,0.1);
}
.btn-outline-light {
    background-color: transparent;
    color: var(--color-white);
    border:1px solid rgba(255,255,255,0.4);
}
.btn-outline-light:hover {
    background-color:rgba(255,255,255,0.12);
}
.text-blue {
    color: var(--color-blue-light);
}
.section-label {
    color: var(--color-primary-blue);
    font-size:13px;
    font-weight:600;
    text-transform: uppercase;
    display:block;
    margin-bottom:8px;
}

/* Header */
.site-header {
    background-color: var(--color-dark-bg);
    position:relative;
    width:100%;
    top:0;
    left:0;
    z-index:999;
    padding:16px 0;
}
.header-wrap {
    display:flex;
    justify-content: space-between;
    align-items:center;
}
.brand-logo {
    display:flex;
    align-items:center;
    gap:10px;
    color:#fff;
}
.logo-icon {
    font-size:24px;
}
.logo-text strong {
    display:block;
    font-size:18px;
    letter-spacing:1px;
}
.logo-text small {
    font-size:10px;
    opacity:0.8;
}
.main-nav {
    display:flex;
    align-items:center;
    gap:28px;
}
.nav-list {
    display:flex;
    gap:26px;
}
.nav-item a {
    color:#ffffff;
    font-size:14px;
    font-weight:500;
    display:flex;
    align-items:center;
    gap:4px;
}
.nav-item.active a {
    color: var(--color-blue-light);
}
.menu-toggle {
    display:none;
    background:transparent;
    border:none;
    color:#fff;
    font-size:24px;
}





/* Footer */
.site-footer {
    background-color:#070e19;
    color:#bbbbbb;
    padding:24px 0;
    font-size:13px;
}

/* Responsive Media Queries */
@media(max-width:1100px) {
    .features-grid {
        grid-template-columns: repeat(3,1fr);
    }
    .products-grid {
        grid-template-columns: repeat(2,1fr);
    }
    .solutions-section .container {
        grid-template-columns: 1fr;
    }
    .solutions-cards-wrap {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-wrap {
        grid-template-columns: 1fr;
    }
}
@media(max-width:768px) {
    .main-nav {
        display:none;
    }
    .menu-toggle {
        display:block;
    }
    .hero-title {
        font-size:36px;
    }
    .hero-content {
        flex-direction:column;
        align-items:flex-start;
    }
    .float-contact-sidebar {
        flex-direction:row;
        margin-top:30px;
        width:100%;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .solutions-cards-wrap {
        grid-template-columns: repeat(2,1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2,1fr);
    }
    .hero-buttons {
        flex-direction:column;
    }
}
@media(max-width:480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    .solutions-cards-wrap {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .float-contact-sidebar {
        flex-direction:column;
    }
}











/* =========================
   Dropdown Menu
========================= */

.has-dropdown .dropdown-menu {
    position: absolute;
    top: 80%;
   /*  left: 0; */

    min-width: 240px;

    margin: 0;
    padding: 0px 0;

    list-style: none;

    background: #fff;

    border-top: 3px solid #16834b;

    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);

    opacity: 0;
    visibility: hidden;
    transform: translateY(0px);

    transition:
        opacity 0.25s ease,
        visibility 0.25s ease,
        transform 0.25s ease;

    z-index: 999;
}


/* Dropdown Items */

.dropdown-menu li {
    margin: 0;
    padding: 0;
}

.dropdown-menu li a {
    display: flex;
    align-items: center;

    min-height: 46px;
    padding: 0 22px;

    color: #333;
    font-size: 14px;
    font-weight: 500;

    text-decoration: none;

    transition:
        background-color 0.25s ease,
        color 0.25s ease,
        padding-left 0.25s ease;
}

.dropdown-menu li a:hover {
    color: #16834b;
    background: #f5f8f6;
    padding-left: 28px;
}


/* =========================
   Show Dropdown
========================= */

.has-dropdown:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.has-dropdown:hover > a i {
    transform: rotate(180deg);
}


/* =========================
   Quote Button
========================= */

.btn-quote {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    padding: 13px 22px;

    color: #fff;
    background: #16834b;

    text-decoration: none;

    font-size: 13px;
    font-weight: 700;

    white-space: nowrap;

    transition: background-color 0.3s ease;
}

.btn-quote:hover {
    background: #10683b;
}

.btn-quote i {
    font-size: 12px;
}










/* ========================================
   Mobile Navigation
======================================== */

.mobile-nav {
    position: fixed;

    top: 0;
    right: -100%;

    width: 320px;
    max-width: 85%;

    height: 100vh;

    background: #fff;

    z-index: 1001;

    overflow-y: auto;

    transition: right 0.35s ease;

    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.12);
}


/* Open */

.mobile-nav.active {
    right: 0;
}


/* ========================================
   Mobile Header
======================================== */

.mobile-nav-header {
    height: 70px;

    padding: 0 22px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    border-bottom: 1px solid #eee;
}

.mobile-nav-header span {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
}

.mobile-nav-close {
    width: 40px;
    height: 40px;

    padding: 0;

    border: 0;
    background: transparent;

    color: #222;

    font-size: 20px;

    cursor: pointer;
}


/* ========================================
   Mobile Menu List
======================================== */

.mobile-nav-list {
    margin: 0;
    padding: 0 20px;

    list-style: none;
}

.mobile-nav-item {
    margin: 0;

    border-bottom: 1px solid #eee;
}

.mobile-nav-item > a {
    display: flex;
    align-items: center;

    min-height: 58px;

    color: #222;

    text-decoration: none;

    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.4px;
}

.mobile-nav-item.active > a {
    color: #16834b;
}


/* ========================================
   Parent Menu
======================================== */

.mobile-nav-link {
    min-height: 58px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-nav-link > a {
    flex: 1;

    display: flex;
    align-items: center;

    height: 58px;

    color: #222;

    text-decoration: none;

    font-size: 14px;
    font-weight: 600;
}

.mobile-nav-link > a:hover {
    color: #16834b;
}


/* ========================================
   Submenu Button
======================================== */

.submenu-toggle {
    width: 45px;
    height: 45px;

    border: 0;
    background: transparent;

    color: #555;

    cursor: pointer;

    font-size: 11px;

    transition: transform 0.3s ease;
}

.has-submenu.open .submenu-toggle {
    transform: rotate(180deg);
}


/* ========================================
   Submenu
======================================== */

.mobile-submenu {
    display: none;

    margin: 0;
    padding: 0 0 10px 15px;

    list-style: none;
}

.has-submenu.open .mobile-submenu {
    display: block;
}

.mobile-submenu li {
    margin: 0;
}

.mobile-submenu li a {
    display: flex;
    align-items: center;

    min-height: 45px;

    padding: 0 15px;

    color: #666;

    text-decoration: none;

    font-size: 13px;

    transition: all 0.25s ease;
}

.mobile-submenu li a:hover {
    color: #16834b;
    padding-left: 20px;
}


/* ========================================
   Footer / Quote
======================================== */

.mobile-nav-footer {
    padding: 25px 20px 40px;
}

.mobile-nav-footer .btn {
    width: 100%;

    min-height: 50px;

    display: flex;
    align-items: center;
    justify-content: center;

    gap: 10px;

    text-decoration: none;
}


/* ========================================
   Overlay
======================================== */

.mobile-nav-overlay {
    position: fixed;

    inset: 0;

    background: rgba(0, 0, 0, 0.45);

    z-index: 1000;

    opacity: 0;
    visibility: hidden;

    transition:
        opacity 0.35s ease,
        visibility 0.35s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}


/* ========================================
   Mobile Breakpoint
======================================== */

@media (max-width: 991px) {

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;

        align-items: center;
        justify-content: center;
    }

}






.footer-qrcodes {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.footer-qrcode {
    text-align: center;
}

.footer-qrcode img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    background: #fff;
    padding: 5px;
    border-radius: 4px;
}

.footer-qrcode span {
    display: block;
    margin-top: 7px;
    font-size: 13px;
    color: #aaa;
}







.site-footer {
    background-color:#070e19;
    color:#bbbbbb;
    padding:54px 0 24px;
    font-size:13px;
}
.footer-top {
    display:grid;
    grid-template-columns: 1.8fr repeat(4, 1fr);
    gap:32px;
    margin-bottom:40px;
}








/* 平板：3列 */
@media (max-width: 1024px) {
    .footer-top {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 24px;
    }
}

/* 手机：2列 */
@media (max-width: 768px) {
    .footer-top {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px 16px;
        margin-bottom: 30px;
    }
}

/* 小屏手机：1列 */
@media (max-width: 480px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 24px;
    }
}





.footer-logo {
    margin-bottom:14px;
}
.brand-col p {
    margin-bottom:18px;
    line-height:1.65;
}
.social-links {
    display:flex;
    gap:14px;
}
.social-links a {
    width:32px;
    height:32px;
    border-radius:50%;
    border:1px solid rgba(255,255,255,0.2);
    display:flex;
    align-items:center;
    justify-content:center;
}
.footer-col h4 {
    color:#fff;
    font-size:15px;
    margin-bottom:16px;
}
.footer-col ul li {
    margin-bottom:9px;
}
.footer-col ul li a:hover {
    color:var(--color-blue-light);
}
.contact-footer-list li {
    display:flex;
    gap:8px;
}
.footer-bottom {
    display:flex;
    justify-content:space-between;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,0.08);
}
.footer‑links a {
    margin-left:22px;
}