/* ============================================
   Template Two — Modern Tech Style
   public.css — Navigation & Footer
   ============================================ */

/* === Reset === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #1e293b;
    line-height: 1.6;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    display: block;
}

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    display: flex;
    align-items: center;
    transition: all 0.35s ease;
    background: transparent;
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
}
.navbar-inner {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.navbar-logo img {
    height: 40px;
    width: auto;
}
.navbar-logo span {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.navbar:not(.scrolled) .navbar-logo span {
    color: #ffffff;
}
.navbar.scrolled .navbar-logo span {
    color: #0f172a;
}
.navbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}
.navbar-nav a {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.navbar:not(.scrolled) .navbar-nav a {
    color: rgba(255, 255, 255, 0.85);
}
.navbar:not(.scrolled) .navbar-nav a:hover,
.navbar:not(.scrolled) .navbar-nav a.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}
.navbar.scrolled .navbar-nav a {
    color: #475569;
}
.navbar.scrolled .navbar-nav a:hover,
.navbar.scrolled .navbar-nav a.active {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
}
.nav-login {
    padding: 8px 24px !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    transition: all 0.25s ease;
    cursor: pointer;
}
.navbar:not(.scrolled) .nav-login {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.navbar:not(.scrolled) .nav-login:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}
.navbar.scrolled .nav-login {
    background: linear-gradient(135deg, #3b82f6, #10b981);
    color: #ffffff !important;
    border: none;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.navbar.scrolled .nav-login:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.navbar:not(.scrolled) .nav-toggle span {
    background: #ffffff;
}
.navbar.scrolled .nav-toggle span {
    background: #0f172a;
}

/* === Footer === */
.site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.65);
    padding: 40px 32px 20px;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
}
.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    flex-wrap: wrap;
}
.footer-brand {
    flex: 0 0 280px;
}
.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.footer-logo-row img {
    height: 32px;
    width: auto;
    opacity: 0.9;
}
.footer-site-name {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}
.footer-desc {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}
.footer-nav-group {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.footer-nav-col h4 {
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}
.footer-nav-col a {
    display: block;
    font-size: 13px;
    padding: 3px 0;
    color: rgba(255,255,255,0.55);
    transition: color 0.2s ease;
}
.footer-nav-col a:hover {
    color: #3b82f6;
}
.footer-nav-col p {
    font-size: 13px;
    padding: 3px 0;
}
.footer-nav-col p i {
    margin-right: 6px;
    color: rgba(255,255,255,0.4);
}
.footer-divider {
    height: 1px;
    background: rgba(255,255,255,0.08);
    margin: 24px 0 16px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
    color: rgba(255,255,255,0.35);
}
.footer-copyright {
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-sep {
    color: rgba(255,255,255,0.2);
}
.footer-filing a {
    color: rgba(255,255,255,0.35);
    transition: color 0.2s ease;
}
.footer-filing a:hover {
    color: rgba(255,255,255,0.6);
}

/* === Responsive === */
@media (max-width: 768px) {
    .navbar-inner {
        padding: 0 16px;
    }
    .nav-toggle {
        display: flex;
    }
    .navbar-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 16px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    }
    .navbar-nav.open {
        display: flex;
    }
    .navbar-nav a {
        color: #1e293b !important;
        padding: 12px 18px;
        width: 100%;
    }
    .navbar-nav a:hover {
        background: rgba(59, 130, 246, 0.06) !important;
        color: #3b82f6 !important;
    }
    .nav-login {
        background: linear-gradient(135deg, #3b82f6, #10b981) !important;
        color: #ffffff !important;
        text-align: center;
    }
    .footer-top {
        flex-direction: column;
    }
    .footer-main {
        flex-direction: column;
        gap: 24px;
    }
    .footer-brand {
        flex: 0 0 auto;
    }
    .footer-nav-group {
        gap: 24px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}