/* ============================================================
   公共头部样式 — 用于首页、入驻页及其他需要统一头部的页面
   ============================================================ */

.header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 0 var(--border);
    transition: box-shadow 0.3s;
}
.header.scrolled {
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.header-logo img {
    height: 65px;
    width: auto;
    border-radius: 6px;
}
.header-logo span {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}
.header-nav {
    display: flex;
    gap: 32px;
    align-items: center;
}
.header-nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--dark-gray);
    position: relative;
    padding: 4px 0;
    transition: color 0.2s;
    text-decoration: none;
}
.header-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: width 0.3s;
}
.header-nav a:hover,
.header-nav a.active {
    color: var(--primary);
}
.header-nav a:hover::after,
.header-nav a.active::after {
    width: 100%;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-actions a {
    text-decoration: none;
}
.btn-outline {
    padding: 8px 20px;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    display: inline-block;
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}
.btn-primary {
    padding: 10px 24px;
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(245,124,0,0.3);
    display: inline-block;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(245,124,0,0.4);
}
.mobile-menu-toggle {
    display: none;
    font-size: 26px;
    color: var(--dark-gray);
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    padding: 20px;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
}
.mobile-menu.active {
    display: flex;
}
.mobile-menu a {
    display: block;
    padding: 14px 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--dark-gray);
    border-radius: var(--radius-sm);
    background: var(--light);
    transition: all 0.2s;
    text-decoration: none;
}
.mobile-menu a:hover,
.mobile-menu a.active {
    background: var(--primary-light);
    color: var(--primary);
}
.mobile-menu .mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}
.mobile-menu .btn-outline,
.mobile-menu .btn-primary {
    text-align: center;
    padding: 12px 20px;
}

@media (max-width: 768px) {
    .header-nav { display: none; }
    .header-actions { display: none; }
    .mobile-menu-toggle { display: block; }
}