/* =====================================================
   天机阁 - 布局样式
   布局：容器、导航栏、页脚、页面主体、响应式
   ===================================================== */

/* ==================== 页面容器 ==================== */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    min-height: calc(100vh - 200px);
}

/* ==================== 导航栏布局 ==================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.nav-logo {
    flex-shrink: 0;
}

.nav-logo-text {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--color-gold-bright);
    letter-spacing: 0.15em;
    text-shadow: 0 0 10px rgba(230, 199, 133, 0.3);
}

/* 桌面端菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu a {
    font-family: var(--font-title);
    font-size: 0.95rem;
    color: var(--color-text-body);
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold-bright);
    transition: width var(--transition-normal);
}

.nav-menu a:hover {
    color: var(--color-gold-bright);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* 右侧用户区域 */
.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* 用户下拉菜单 */
.nav-user-dropdown {
    position: relative;
}

.nav-avatar-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.nav-avatar-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--color-gold-dark);
    object-fit: cover;
}

.nav-avatar-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 2px solid var(--color-gold-dark);
    color: var(--color-gold-bright);
    font-size: 0.9rem;
    font-family: var(--font-title);
}

.nav-username {
    color: var(--color-text-body);
    font-size: 0.9rem;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    color: var(--color-bg-main);
    font-weight: bold;
}

.nav-badge-monthly { background: var(--color-warning); }
.nav-badge-yearly { background: var(--color-gold); }
.nav-badge-lifetime { background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright)); }

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 150px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-xs) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

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

.nav-dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-body);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.nav-dropdown-menu a:hover {
    background: var(--color-bg-card);
    color: var(--color-gold-bright);
    padding-left: calc(var(--spacing-md) + 4px);
}

/* 金色细线分隔 */
.nav-gold-line {
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--color-gold-dark) 20%,
        var(--color-gold-bright) 50%,
        var(--color-gold-dark) 80%,
        transparent 100%);
    opacity: 0.5;
}

/* 汉堡菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-gold-bright);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单 */
.nav-mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--color-bg-secondary);
    padding: var(--spacing-md);
}

.nav-mobile-menu.active {
    display: flex;
}

.nav-mobile-menu a {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-body);
    font-family: var(--font-title);
    font-size: 1rem;
    border-bottom: 1px solid rgba(201, 162, 39, 0.1);
}

.nav-mobile-menu a:hover {
    color: var(--color-gold-bright);
}

/* ==================== 页脚布局 ==================== */
.site-footer {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        var(--color-gold-dark),
        transparent);
    margin-bottom: var(--spacing-lg);
    opacity: 0.4;
}

.footer-links {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--color-text-dim);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-gold-bright);
}

.footer-sep {
    color: var(--color-text-dim);
    margin: 0 var(--spacing-sm);
    opacity: 0.5;
}

.footer-copyright {
    color: var(--color-text-dim);
    font-size: 0.8rem;
    margin-bottom: var(--spacing-sm);
}

.footer-copyright a {
    color: var(--color-text-dim);
    text-decoration: underline;
}

.footer-disclaimer {
    color: var(--color-text-dim);
    font-size: 0.75rem;
    opacity: 0.7;
}

/* ==================== 响应式断点 ==================== */

/* 平板 (<=1024px) */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-md);
    }

    .nav-menu a {
        font-size: 0.9rem;
    }

    .page-container {
        padding: var(--spacing-md);
    }
}

/* 手机 (<=768px) */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-user {
        gap: var(--spacing-xs);
    }

    .nav-username {
        display: none;
    }

    .page-container {
        padding: var(--spacing-sm);
    }

    .nav-container {
        padding: 0 var(--spacing-sm);
        height: 50px;
    }

    .nav-logo-text {
        font-size: 1.3rem;
    }

    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-xs) var(--spacing-sm);
    }

    .footer-sep {
        display: none;
    }
}

/* 小手机 (<=480px) */
@media (max-width: 480px) {
    .nav-logo-text {
        font-size: 1.1rem;
    }

    .btn-sm {
        padding: 4px 12px;
        font-size: 0.8rem;
    }
}