/* ========== Base Styles ========== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary-color: #2196F3;
    --primary-hover: #1976D2;
    --primary-dark: #1565C0;
    --secondary-color: #6366F1;
    --secondary-hover: #4F46E5;
    --accent-color: #DC2626;
    --accent-hover: #B91C1C;
    --success-color: #059669;
    --success-hover: #047857;
    --dark-color: #1E293B;
    --dark-hover: #0F172A;
    --light-bg: #FFFFFF;
    --light-secondary: #F8FAFC;
    --light-tertiary: #F1F5F9;
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --border-color: #E2E8F0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-primary: rgba(33, 150, 243, 0.2);
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border */
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    --border-width: 1px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Layout */
    --container-max-width: 1440px;
    
    /* Z-index */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;
}

/* ===== Global Reset ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== HTML & Body ===== */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--light-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Vue v-cloak - Hide elements before Vue is loaded */
[v-cloak] {
    display: none !important;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

/* ===== Links ===== */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: inherit;
    text-decoration: none;
}

a:focus {
    outline: none;
}

/* ===== Lists ===== */
ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* ===== Images ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== Form Elements ===== */
input,
textarea,
select,
button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== Button Styles ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: var(--light-bg);
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px var(--shadow-primary);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-hover);
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--shadow-primary);
}

.btn-primary:active:not(:disabled) {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(0);
    box-shadow: 0 2px 6px var(--shadow-primary);
}

/* Secondary Button (Outline) */
.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: var(--light-bg);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--shadow-primary);
}

.btn-outline-primary:active:not(:disabled) {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--light-bg);
    transform: translateY(0);
    box-shadow: 0 2px 6px var(--shadow-primary);
}

/* Secondary Button (Solid) */
.btn-secondary {
    background: var(--secondary-color);
    color: var(--light-bg);
    border-color: var(--secondary-color);
}

.btn-secondary:hover:not(:disabled) {
    background: #047857;
    border-color: #047857;
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

.btn-secondary:active:not(:disabled) {
    background: #065F46;
    border-color: #065F46;
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.2);
}

/* Success Button */
.btn-success {
    background: var(--secondary-color);
    color: var(--light-bg);
    border-color: var(--secondary-color);
}

.btn-success:hover:not(:disabled) {
    background: #047857;
    border-color: #047857;
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

.btn-success:active:not(:disabled) {
    background: #065F46;
    border-color: #065F46;
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.2);
}

/* Danger Button */
.btn-danger {
    background: var(--accent-color);
    color: var(--light-bg);
    border-color: var(--accent-color);
}

.btn-danger:hover:not(:disabled) {
    background: #B91C1C;
    border-color: #B91C1C;
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-danger:active:not(:disabled) {
    background: #991B1B;
    border-color: #991B1B;
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(220, 38, 38, 0.2);
}

/* Warning Button */
.btn-warning {
    background: #F59E0B;
    color: var(--light-bg);
    border-color: #F59E0B;
}

.btn-warning:hover:not(:disabled) {
    background: #D97706;
    border-color: #D97706;
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-warning:active:not(:disabled) {
    background: #B45309;
    border-color: #B45309;
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.2);
}

/* Light Button */
.btn-light {
    background: var(--light-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-light:hover:not(:disabled) {
    background: var(--light-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-light:active:not(:disabled) {
    background: var(--light-tertiary);
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 14px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 16px;
    font-weight: 600;
}

/* Button with Icon */
.btn i {
    font-size: 14px;
}

.btn-lg i {
    font-size: 16px;
}

/* ===== Utility Classes ===== */

/* Text Overflow */
.text-three-overflow {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
}

.text-two-overflow {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.text-one-overflow {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== Accessibility ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ===== Responsive Container ===== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

/* ===== Clearfix ===== */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ===== Common Cover Placeholder ===== */
.common-cover-placeholder {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e2cce1 0%, #3379bf 100%);
}

/* ========== Breadcrumb Navigation Component Styles ========== */
.breadcrumb-section {
    padding: var(--spacing-md) 0;
    background: var(--light-secondary);
    border-bottom: 1px solid var(--border-color);
}

.common-breadcrumb .breadcrumb {
    margin-bottom: 0;
    background: transparent;
    padding: 0;
    font-size: 0.875rem;
}

.common-breadcrumb {
    margin-bottom: var(--spacing-lg);
}

.common-breadcrumb .breadcrumb-item {
    color: var(--text-secondary);
}

.common-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
    content: ">";
    color: var(--text-muted);
    padding: 0 var(--spacing-sm);
    font-weight: normal;
}

.common-breadcrumb .breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.common-breadcrumb .breadcrumb-item a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.common-breadcrumb .breadcrumb-item span {
    color: var(--text-secondary);
}

.common-breadcrumb .breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.common-breadcrumb .breadcrumb-item.active span {
    color: var(--text-primary);
}

.magazine-detail-breadcrumb {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}

.magazine-detail-page,
.magazine-issue-detail-page,
.magazine-article-detail-page {
    padding-top: var(--spacing-lg);
    background: linear-gradient(180deg, #f1f5f9 0%, var(--light-bg) 18%, var(--light-bg) 100%);
}

@media (max-width: 767.98px) {
    .breadcrumb-section {
        padding: var(--spacing-sm) 0;
    }

    .common-breadcrumb .breadcrumb {
        font-size: 0.8125rem;
    }

    .common-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
        padding: 0 var(--spacing-xs);
    }
}

/* ========== Header Styles ========== */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-index-fixed);
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
}

.header .header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.header .header-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80px;
    padding: var(--spacing-sm) 0;
    position: relative;
    gap: var(--spacing-lg);
}

.header .header-logo {
    flex-shrink: 0;
}

.header .logo-link {
    display: inline-block;
    transition: var(--transition);
}

.header .logo-image {
    width: 120px;
    height: 120px;
    display: block;
    object-fit: contain;
    transition: var(--transition);
}

.header .logo-link:hover .logo-image {
    transform: scale(1.05);
}

.header .header-nav {
    display: flex;
    flex: 0 0 auto;
}

.header .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.header .header-nav-item {
    position: relative;
}

.header .header-nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.header .header-nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.header .header-nav-link:hover,
.header .header-nav-link.active {
    color: var(--primary-color);
}

.header .header-nav-link:hover::after,
.header .header-nav-link.active::after {
    width: calc(100% - 2rem);
}

.header .header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    margin-left: auto;
}

.header .btn-login {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, #1E293B 0%, #334155 100%);
    color: var(--light-bg);
    border-radius: var(--border-radius);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: none;
}

.header .btn-login:hover {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    color: var(--light-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 41, 59, 0.4);
}

.header .btn-login i {
    font-size: 14px;
}

.header .user-section {
    position: relative;
}

.header .user-menu-trigger {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.header .user-menu-trigger:hover {
    background: var(--light-secondary);
    color: var(--text-primary);
}

.header .user-menu-trigger i {
    font-size: 12px;
    transition: var(--transition);
}

.header .user-section:hover .user-menu-trigger i {
    transform: rotate(180deg);
}

.header .user-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    right: 0;
    min-width: 180px;
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: var(--z-index-dropdown);
}

.header .user-dropdown::before {
    content: "";
    position: absolute;
    top: -0.5rem;
    left: 0;
    right: 0;
    height: 0.5rem;
    background: transparent;
}

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

.header .dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
    border-bottom: none;
}

.header .dropdown-item:first-child {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.header .dropdown-item:last-child {
    border-bottom: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.header .dropdown-item:hover {
    background: var(--light-secondary);
    color: var(--primary-color);
}

.header .dropdown-item i {
    width: 16px;
    font-size: 14px;
    color: var(--text-muted);
}

.header .dropdown-item:hover i {
    color: var(--primary-color);
}

.header .dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0;
    border: none;
    padding: 0;
    opacity: 1;
}

.header .mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.header .hamburger-line {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.header .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.header .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.header .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.header .mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--light-bg);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.header .mobile-nav.active {
    max-height: 80vh;
    overflow-y: auto;
}

.header .mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: var(--spacing-md);
}

.header .mobile-nav-item {
    border-bottom: 1px solid var(--light-tertiary);
}

.header .mobile-nav-item:last-child {
    border-bottom: none;
}

.header .mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.header .mobile-nav-link:hover,
.header .mobile-nav-link.active {
    color: var(--primary-color);
    background: var(--light-secondary);
    padding-left: var(--spacing-lg);
}

.header .mobile-nav-link i {
    width: 20px;
    font-size: 16px;
    color: var(--text-muted);
}

.header .mobile-nav-link:hover i {
    color: var(--primary-color);
}

.header .mobile-btn-login {
    background: var(--primary-color);
    color: var(--light-bg);
    border-radius: var(--border-radius);
    justify-content: center;
}

.header .mobile-btn-login:hover {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    color: var(--light-bg);
    padding-left: var(--spacing-md);
}

/* ========== Footer Styles ========== */
.footer {
    background: var(--light-tertiary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer .footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer .footer-content {
    display: grid;
    grid-template-columns: 2fr 2fr 1.5fr;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.footer .footer-logo-link {
    display: inline-block;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition);
}

.footer .footer-logo {
    width: 100px;
    height: 100px;
    display: block;
    object-fit: contain;
}

.footer .footer-logo-link:hover {
    opacity: 0.8;
}

.footer .footer-description {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer .footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--light-bg);
    color: var(--text-muted);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.footer .social-link:hover {
    background: var(--primary-color);
    color: var(--light-bg);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

.footer .social-link i {
    font-size: 16px;
}

.footer .footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer .footer-nav-group {
    display: flex;
    flex-direction: column;
}

.footer .footer-group-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.footer .footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

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

.footer .footer-links a {
    color: var(--text-muted);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer .footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.footer .footer-link-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.footer .contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer .contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

.footer .contact-item i {
    width: 20px;
    color: var(--primary-color);
    font-size: 16px;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer .contact-item a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer .contact-item a:hover {
    color: var(--primary-color);
}

.footer .contact-item span {
    flex: 1;
}

.footer .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer .footer-copyright {
    color: var(--text-muted);
    font-size: 13px;
    margin: 0;
}

.footer .footer-legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer .legal-link {
    color: var(--text-muted);
    font-size: 13px;
    text-decoration: none;
    transition: var(--transition);
}

.footer .legal-link:hover {
    color: var(--primary-color);
}

.footer .legal-separator {
    color: var(--text-muted);
    font-size: 13px;
    opacity: 0.5;
}

/* ========== Sticky below site header (top 由 sticky-under-header.js 按 .header 高度写入) ========== */
@media (min-width: 992px) {
    .sticky-under-header {
        position: sticky;
        align-self: flex-start;
        z-index: var(--z-index-sticky);
        top: 6rem;
    }
}

/* ===== Header/Footer Responsive ===== */
@media (max-width: 1199.98px) {
    .header .header-nav {
        display: none;
    }

    .header .mobile-menu-toggle {
        display: flex;
    }

    .header .mobile-nav {
        display: block;
    }

    .header .header-wrapper {
        height: 70px;
        justify-content: space-between;
        position: relative;
    }

    .header .logo-image {
        width: 80px;
        height: 80px;
    }

    .header .header-actions {
        position: absolute !important;
        left: 50% !important;
        top: 50% !important;
        transform: translate(-50%, -50%) !important;
        margin-left: 0 !important;
        margin-top: 0 !important;
        right: auto !important;
    }

    .header .user-dropdown {
        position: fixed;
        top: auto;
        right: var(--spacing-md);
        left: var(--spacing-md);
        min-width: auto;
    }
}

@media (max-width: 991.98px) {
    .footer .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .footer .footer-brand,
    .footer .footer-nav,
    .footer .footer-contact {
        grid-column: 1 / -1;
    }

    .footer .footer-nav {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767.98px) {
    .header .header-container {
        padding: 0 var(--spacing-sm);
    }

    .header .header-wrapper {
        height: 65px;
    }

    .header .logo-image {
        width: 60px;
        height: 60px;
    }

    .header .btn-login span {
        display: none;
    }

    .header .btn-login {
        padding: var(--spacing-sm);
        width: 40px;
        height: 40px;
        justify-content: center;
        border-radius: 50%;
    }

    .header .user-menu-trigger .user-display-name {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }

    .footer .footer-container {
        padding: 0 var(--spacing-sm);
    }

    .footer .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        margin-bottom: var(--spacing-xl);
    }

    .footer .footer-brand,
    .footer .footer-nav,
    .footer .footer-contact {
        grid-column: 1;
    }

    .footer .footer-nav {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .footer .footer-legal {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .footer .legal-separator {
        display: none;
    }
}