/* ==========================================================================
   common.css - 全局变量、重置、通用布局与 Header/Footer (基于 service.html)
   ========================================================================== */
:root {
    --primary-blue: #101c36;
    --dark-blue: #0b1426;
    --light-bg: #f9fafb;
    --gold: #c2a362;
    --gold-hover: #a88a4b;
    --whatsapp: #25D366;
    --whatsapp-hover: #1da851;
    --text-dark: #333333;
    --text-gray: #6b7280;
    --border-color: #e5e7eb;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    color: var(--text-dark);
    overflow-x: hidden;
    background-color: #ffffff;
}

h1, h2, h3, h4, h5, h6, .serif-font {
    font-family: 'Playfair Display', serif;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-speed);
}
a:hover { color: var(--gold); }
ul { list-style: none; padding: 0; margin: 0; }
img { max-width: 100%; display: block; }

/* ================= 通用工具类 (替换内联样式) ================= */
.text-gold-custom { color: var(--gold) !important; }
.text-primary-custom { color: var(--primary-blue) !important; }
.max-w-600 { max-width: 600px; margin-left: auto; margin-right: auto; }
.cursor-pointer { cursor: pointer; }
.resize-none { resize: none; }
.mt-30 { margin-top: 30px; }
.fs-xs { font-size: 0.7rem; }
.text-underline { text-decoration: underline; }

/* ================= 按钮样式 ================= */
.btn-dark-blue {
    background-color: var(--primary-blue);
    color: #fff;
    border-radius: 30px;
    padding: 8px 24px;
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    display: inline-block;
    border: none;
}
.btn-dark-blue:hover { background-color: var(--gold); color: #fff; }

.btn-gold {
    background-color: var(--gold);
    color: #fff;
    border-radius: 30px;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    border: none;
    display: inline-block;
}
.btn-gold:hover { background-color: var(--gold-hover); color: #fff; }

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: #fff;
    border-radius: 30px;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    border: none;
    display: inline-block;
}
.btn-whatsapp:hover { background-color: var(--whatsapp-hover); color: #fff; }

/* ================= 顶部信息栏 (Topbar) ================= */
.topbar {
    background-color: var(--dark-blue);
    color: #d1d5db;
    font-size: 12px;
    padding: 8px 0;
}
.topbar a { color: #d1d5db; }
.topbar a:hover { color: var(--gold); }
.topbar i { color: var(--gold); margin-right: 5px; }

/* ================= 导航栏 (Navbar) ================= */
.navbar-custom-main {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 15px 0;
}
.navbar-custom-main .navbar-brand {
    font-weight: 700;
    font-size: 24px;
    color: var(--primary-blue);
    letter-spacing: 1px;
}
.navbar-custom-main .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 14px;
    text-transform: uppercase;
    padding: 10px 15px !important;
}
.navbar-custom-main .nav-link:hover, .navbar-custom-main .nav-link.active {
    color: var(--gold);
}
.navbar-custom-main .nav-item.active .nav-link {
    color: var(--gold);
}

@media (min-width: 992px) {
    .navbar-custom-main .dropdown:hover > .dropdown-menu {
        display: block; margin-top: 0; opacity: 1; visibility: visible; transform: translateY(0); transition: all 0.3s ease;
    }
    .navbar-custom-main .dropdown-menu {
        display: block; opacity: 0; visibility: hidden; transform: translateY(10px); border: none; box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-radius: 4px;
    }
    .navbar-custom-main .dropdown-submenu { position: relative; }
    .navbar-custom-main .dropdown-submenu:hover > .dropdown-menu { display: block; opacity: 1; visibility: visible; transform: translateY(0); }
    .navbar-custom-main .dropdown-submenu > .dropdown-menu { top: 0; left: 100%; margin-top: -6px; margin-left: 0; }
    .navbar-custom-main .dropdown-item { font-size: 14px; padding: 10px 20px; transition: all 0.2s; }
    .navbar-custom-main .dropdown-item:hover { background-color: var(--light-bg); color: var(--gold); }
}

/* ================= 页脚 (Footer) ================= */
.footer-main {
    background-color: var(--dark-blue);
    color: #9ca3af;
    padding: 60px 0 20px;
    font-size: 14px;
}
.footer-main .footer-logo { font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 20px; display: block; }
.footer-main .footer-heading { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; text-transform: uppercase; }
.footer-main .footer-links li { margin-bottom: 12px; }
.footer-main .footer-links a { color: #9ca3af; }
.footer-main .footer-links a:hover { color: var(--gold); }
.footer-main .social-icons a {
    display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px;
    border-radius: 50%; background: rgba(255,255,255,0.05); color: #fff; margin-right: 10px;
}
.footer-main .social-icons a:hover { background: var(--gold); }
.footer-main .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; margin-top: 40px; font-size: 12px; text-align: center; }

/* ================= 移动端适配 ================= */
@media (max-width: 767px) {
    .page-home .btn-gold, .page-home .btn-whatsapp { display: block; width: 100%; margin-bottom: 10px; }
    .page-home .cta-buttons { flex-direction: column; }
}