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

html {
    overflow-x: hidden;
    height: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: -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: 14px;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #f5f7fa;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 本地Font Awesome图标样式 */
.fa {
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: inherit;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.fa-code:before { content: "\f121"; }
.fa-magic:before { content: "\f0d0"; }
.fa-desktop:before { content: "\f108"; }
.fa-plug:before { content: "\f1e6"; }
.fa-brain:before { content: "\f5dc"; }
.fa-cloud:before { content: "\f0c2"; }
.fa-rocket:before { content: "\f135"; }
.fa-map-marker:before { content: "\f041"; }
.fa-phone:before { content: "\f095"; }
.fa-envelope:before { content: "\f0e0"; }
.fa-weixin:before { content: "\f1d7"; }
.fa-weibo:before { content: "\f18a"; }
.fa-linkedin:before { content: "\f0e1"; }
.fa-github:before { content: "\f09b"; }
.fa-chevron-right:before { content: "\f054"; }
.fa-chevron-down:before { content: "\f078"; }
.fa-sign-in:before { content: "\f090"; }
.fa-info-circle:before { content: "\f05a"; }
.fa-paper-plane:before { content: "\f1d8"; }
.fa-cogs:before { content: "\f085"; }
.fa-angle-left:before { content: "\f104"; }
.fa-angle-right:before { content: "\f105"; }
.fa-bars:before { content: "\f0c9"; }
.fa-search:before { content: "\f002"; }
.fa-th-large:before { content: "\f009"; }
.fa-folder:before { content: "\f07b"; }
.fa-thumbs-up:before { content: "\f164"; }
.fa-star:before { content: "\f005"; }
.fa-comments:before { content: "\f086"; }
.fa-spinner:before { content: "\f110"; }
.fa-arrow-left:before { content: "\f060"; }
.fa-tag:before { content: "\f02b"; }
.fa-calendar:before { content: "\f133"; }
.fa-user:before { content: "\f007"; }
.fa-eye:before { content: "\f06e"; }
.fa-trash:before { content: "\f1f8"; }
.fa-edit:before { content: "\f044"; }
.fa-check:before { content: "\f00c"; }
.fa-times:before { content: "\f00d"; }
.fa-plus:before { content: "\f067"; }
.fa-dashboard:before { content: "\f0e4"; }
.fa-list:before { content: "\f03a"; }
.fa-chart-bar:before { content: "\f080"; }
.fa-users:before { content: "\f0c0"; }
.fa-settings:before { content: "\f013"; }
.fa-lock:before { content: "\f023"; }
.fa-unlock:before { content: "\f09c"; }

@font-face {
    font-family: 'FontAwesome';
    font-style: normal;
    font-weight: normal;
    src: url('../fonts/fontawesome-webfont.eot');
    src: url('../fonts/fontawesome-webfont.eot?#iefix') format('embedded-opentype'),
         url('../fonts/fontawesome-webfont.woff2') format('woff2'),
         url('../fonts/fontawesome-webfont.woff') format('woff'),
         url('../fonts/fontawesome-webfont.ttf') format('truetype'),
         url('../fonts/fontawesome-webfont.svg#fontawesomeregular') format('svg');
}

:root {
    --primary: #1890ff;
    --primary-hover: #40a9ff;
    --primary-dark: #096dd9;
    --primary-light: #e6f7ff;
    --primary-border: #91d5ff;
    --success: #52c41a;
    --success-light: #f6ffed;
    --warning: #faad14;
    --warning-light: #fffbe6;
    --danger: #ff4d4f;
    --danger-light: #fff1f0;
    --info: #13c2c2;
    --info-light: #e6fffb;
    --bg-page: #f5f7fa;
    --bg-card: #ffffff;
    --bg-hover: #fafafa;
    --bg-active: #e6f7ff;
    --border: #e8e8e8;
    --border-light: #f0f0f0;
    --text-primary: #1a1a1a;
    --text-secondary: #595959;
    --text-tertiary: #8c8c8c;
    --text-muted: #bfbfbf;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 2px 8px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 4px 16px 0 rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 8px 32px 0 rgba(0, 0, 0, 0.12);
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    --border-radius-2xl: 16px;
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.25s ease;
    --transition-slow: all 0.35s ease;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.navbar-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: var(--transition-fast);
    z-index: 1001;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    align-items: center;
    justify-content: center;
}

.navbar-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

@media (min-width: 1025px) {
    .navbar-toggle {
        display: none !important;
    }
    .navbar-links {
        display: flex !important;
    }
}

@media (max-width: 1024px) {
    .navbar-links {
        display: none !important;
    }
    .navbar-toggle {
        display: flex !important;
        margin-left: auto;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    .navbar-brand {
        font-size: 1.1rem;
    }
    .navbar-logo {
        width: 32px;
        height: 32px;
    }
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.navbar-brand:hover {
    color: var(--primary);
}

.navbar-logo {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.navbar-logo img {
    width: 70%;
    height: 70%;
    object-fit: contain;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.navbar-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) 0;
}

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

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-normal);
    border-radius: 1px;
}

.navbar-link:hover::after {
    width: 100%;
}

.navbar-dropdown {
    position: relative;
    display: inline-block;
}

.navbar-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: var(--spacing-xs);
}

.navbar-dropdown .dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
}

.navbar-dropdown .dropdown-toggle i {
    font-size: 0.75rem;
    transition: var(--transition-fast);
}

.navbar-dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.navbar-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    margin-top: var(--spacing-xs);
    z-index: 10000;
    overflow: hidden;
    border: 1px solid var(--border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition-normal);
}

.navbar-dropdown:hover .dropdown-menu,
.navbar-dropdown .dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar-dropdown .dropdown-item {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    text-decoration: none;
}

.navbar-dropdown .dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--primary);
}

.mobile-dropdown {
    position: relative;
}

.mobile-dropdown-menu {
    display: none;
    background: var(--bg-page);
    padding-left: var(--spacing-lg);
    overflow: hidden;
    transition: var(--transition-fast);
}

.mobile-dropdown-menu.show {
    display: block;
}

.mobile-dropdown-menu .mobile-menu-link.sub-link {
    padding-left: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.mobile-dropdown-menu .mobile-menu-link.sub-link:hover {
    color: var(--primary);
}

.user-dropdown {
    position: relative;
    display: inline-block;
}

.user-dropdown-toggle {
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-fast);
}

.user-dropdown-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: #ffffff;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    margin-top: var(--spacing-xs);
    z-index: 10000;
    overflow: hidden;
    border: 1px solid var(--border);
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: var(--spacing-md);
    text-align: left;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    text-decoration: none;
}

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--primary);
}

.dropdown-item:first-child {
    border-bottom: 1px solid var(--border-light);
}

.mobile-menu {
    display: none;
    background: #ffffff;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    box-shadow: var(--shadow-md);
    z-index: 999;
    animation: slideDown 0.25s ease-out;
    border-bottom: 1px solid var(--border);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-container {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    width: 100%;
    box-sizing: border-box;
}

.mobile-menu-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    background: var(--bg-hover);
}

.mobile-menu-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    gap: var(--spacing-sm);
    position: relative;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-border);
    color: var(--primary);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-light);
}

.btn-danger {
    background: var(--danger);
    color: #ffffff;
}

.btn-danger:hover {
    background: #ff7875;
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8rem;
    border-radius: var(--border-radius-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    border-radius: var(--border-radius-lg);
}

.input-field {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    background: #ffffff;
    color: var(--text-primary);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.input-field::placeholder {
    color: var(--text-muted);
}

.input-field:hover {
    border-color: var(--primary-border);
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border);
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    color: var(--text-secondary);
    line-height: 1.7;
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-center { align-items: center; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-wrap { flex-wrap: wrap; }

.gap-2 { gap: var(--spacing-xs); }
.gap-4 { gap: var(--spacing-sm); }
.gap-6 { gap: var(--spacing-md); }
.gap-8 { gap: var(--spacing-lg); }

.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-4 { margin: var(--spacing-md); }
.m-6 { margin: var(--spacing-lg); }
.m-8 { margin: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-md); }
.mt-6 { margin-top: var(--spacing-lg); }
.mt-8 { margin-top: var(--spacing-xl); }
.mt-12 { margin-top: var(--spacing-2xl); }
.mt-16 { margin-top: calc(var(--spacing-2xl) + var(--spacing-xl)); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-4 { margin-bottom: var(--spacing-md); }
.mb-6 { margin-bottom: var(--spacing-lg); }
.mb-8 { margin-bottom: var(--spacing-xl); }
.mb-12 { margin-bottom: var(--spacing-2xl); }
.mb-16 { margin-bottom: calc(var(--spacing-2xl) + var(--spacing-xl)); }

.ml-1 { margin-left: var(--spacing-xs); }
.ml-2 { margin-left: var(--spacing-sm); }
.ml-4 { margin-left: var(--spacing-md); }
.ml-6 { margin-left: var(--spacing-lg); }
.ml-8 { margin-left: var(--spacing-xl); }

.mr-1 { margin-right: var(--spacing-xs); }
.mr-2 { margin-right: var(--spacing-sm); }
.mr-4 { margin-right: var(--spacing-md); }
.mr-6 { margin-right: var(--spacing-lg); }
.mr-8 { margin-right: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-4 { padding: var(--spacing-md); }
.p-6 { padding: var(--spacing-lg); }
.p-8 { padding: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-4 { padding-top: var(--spacing-md); }
.pt-6 { padding-top: var(--spacing-lg); }
.pt-8 { padding-top: var(--spacing-xl); }
.pt-12 { padding-top: var(--spacing-2xl); }
.pt-16 { padding-top: calc(var(--spacing-2xl) + var(--spacing-xl)); }
.pt-20 { padding-top: calc(var(--spacing-2xl) + var(--spacing-lg)); }

.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-4 { padding-bottom: var(--spacing-md); }
.pb-6 { padding-bottom: var(--spacing-lg); }
.pb-8 { padding-bottom: var(--spacing-xl); }
.pb-12 { padding-bottom: var(--spacing-2xl); }
.pb-16 { padding-bottom: calc(var(--spacing-2xl) + var(--spacing-xl)); }

.pl-1 { padding-left: var(--spacing-xs); }
.pl-2 { padding-left: var(--spacing-sm); }
.pl-4 { padding-left: var(--spacing-md); }
.pl-6 { padding-left: var(--spacing-lg); }
.pl-8 { padding-left: var(--spacing-xl); }

.pr-1 { padding-right: var(--spacing-xs); }
.pr-2 { padding-right: var(--spacing-sm); }
.pr-4 { padding-right: var(--spacing-md); }
.pr-6 { padding-right: var(--spacing-lg); }
.pr-8 { padding-right: var(--spacing-xl); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }

.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

.main {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex-grow: 1;
    padding-top: 64px;
}

.toast {
    position: fixed;
    top: 80px;
    right: var(--spacing-lg);
    background: #ffffff;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 10000;
    transform: translateX(100%);
    transition: var(--transition-normal);
    border-left: 4px solid var(--primary);
    min-width: 280px;
}

.toast.show {
    transform: translateX(0);
}

.toast-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast-icon.success {
    background: var(--success-light);
    color: var(--success);
}

.toast-icon.error {
    background: var(--danger-light);
    color: var(--danger);
}

.toast-icon.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.toast-icon.info {
    background: var(--primary-light);
    color: var(--primary);
}

.toast-content {
    flex-grow: 1;
}

.toast-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-fast);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
}

.toast-close:hover {
    color: var(--text-secondary);
    background: var(--bg-hover);
}

.footer {
    background: #0f1520;
    color: #ffffff;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary);
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.4s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-page);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

::selection {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 140px;
    background-color: rgba(0, 0, 0, 0.85);
    color: #ffffff;
    text-align: center;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm);
    position: absolute;
    z-index: 1000;
    bottom: 120%;
    left: 50%;
    margin-left: -70px;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 0.75rem;
    pointer-events: none;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-in;
}

.modal-content {
    background: #ffffff;
    margin: auto;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    position: relative;
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.25s ease-out;
    display: flex;
    flex-direction: column;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
}

.modal-body {
    padding: var(--spacing-xl);
    flex: 1;
    overflow-y: auto;
    max-height: calc(80vh - 140px);
    color: var(--text-secondary);
}

.modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.close {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: #ffffff;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    line-height: 1;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.25);
}

.about-content {
    line-height: 1.7;
}

.about-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.about-content p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.about-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.about-content li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.contact-form {
    margin-top: var(--spacing-md);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.contact-form .form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.contact-form .input-field {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    background: #ffffff;
    color: var(--text-primary);
}

.contact-form .input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

.case-content {
    margin-bottom: var(--spacing-2xl);
}

.case-slider-container {
    position: relative;
    margin: 0 auto;
}

.case-slider {
    overflow: hidden;
    position: relative;
}

.case-slider-track {
    display: flex;
    gap: var(--spacing-lg);
    transition: transform 0.4s ease;
}

.case-card {
    flex: 0 0 300px;
    background: #ffffff;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-light);
}

.case-image svg {
    width: 100%;
    height: 100%;
    display: block;
}

.case-card:hover .case-image svg {
    transform: scale(1.05);
}

.case-info {
    padding: var(--spacing-md) var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    z-index: 2;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary);
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.case-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.case-desc {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.case-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-page);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 500;
}

.case-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.case-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.case-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.case-page-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.active-page {
    color: var(--primary);
}

.total-pages {
    color: var(--text-muted);
}

.case-slide-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.case-slide-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.case-slide-btn.left-btn {
    left: -20px;
}

.case-slide-btn.right-btn {
    right: -20px;
}

.case-slide-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .case-card {
        flex: 0 0 260px;
    }
    .case-slide-btn {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
    .case-slide-btn.left-btn {
        left: -16px;
    }
    .case-slide-btn.right-btn {
        right: -16px;
    }
}