:/* ===== 虫虫漫画 全站样式 ===== */
/* ===== 设计语言：清爽、圆润、轻量、现代 ===== */
:root {
    --bg: #ffffff;
    --text: #1F2937;
    --text-secondary: #3d4c5f;
    --heading: #111827;
    --card-bg: #f9fafb;
    --border: #e5e7eb;
    --primary: #2b5797;
    --primary-dark: #1d3f6e;
    --footer-bg: #111827;
    --footer-text: #E5E7EB;
    --nav-bg: rgba(255,255,255,0.9);
    --shadow: 0 4px 12px rgba(0,0,0,0.05);
    --code-bg: #f3f4f6;
    --banner-gradient: linear-gradient(135deg, #2b5797 0%, #1e3a5f 100%);
    --hover-lift: translateY(-6px);
    --transition-fast: 0.2s ease;
    --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --glass-blur: blur(12px);
}

[data-theme="dark"] {
    --bg: #0b131f;
    --text: #E2E8F0;
    --text-secondary: #a0b3c9;
    --heading: #F8FAFC;
    --card-bg: #1e293b;
    --border: #334155;
    --primary: #5b8def;
    --primary-dark: #9ab6ff;
    --footer-bg: #0f172a;
    --footer-text: #E2E8F0;
    --nav-bg: rgba(15,23,42,0.9);
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --code-bg: #1e293b;
    --banner-gradient: linear-gradient(135deg, #1d3f6e 0%, #0b1a2f 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    color: var(--heading);
    font-weight: 700;
    line-height: 1.3;
    margin-top: 1.2em;
    margin-bottom: 0.6em;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.2rem;
}

h2 {
    font-size: 1.75rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.4rem;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: width var(--transition-slow);
}

h2:hover::after {
    width: 120px;
}

h3 {
    font-size: 1.3rem;
}

h4 {
    font-size: 1.1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text);
    line-height: 1.8;
}

a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
    border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== 导航栏 ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--heading);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.03em;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo svg {
    width: 38px;
    height: 38px;
    fill: var(--primary);
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    transition: transform var(--transition-slow);
}

.logo:hover svg {
    transform: rotate(15deg);
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 4px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: width var(--transition-slow);
}

.nav-links a:hover {
    color: var(--primary);
    text-decoration: none;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 4px 14px;
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(43, 87, 151, 0.1);
}

.search-box input {
    border: none;
    background: transparent;
    padding: 8px 10px;
    color: var(--text);
    outline: none;
    width: 180px;
    font-size: 0.9rem;
}

.search-box input::placeholder {
    color: var(--text-secondary);
    opacity: 0.8;
}

.search-box span {
    color: var(--primary);
    font-size: 1rem;
}

.theme-toggle, .menu-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 8px 14px;
    cursor: pointer;
    color: var(--text);
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.theme-toggle:hover, .menu-toggle:hover {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(43, 87, 151, 0.2);
}

.menu-toggle {
    display: none;
}

/* ===== Banner ===== */
.banner {
    background: var(--banner-gradient);
    padding: 50px 40px;
    border-radius: 24px;
    margin: 40px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(43, 87, 151, 0.2);
    animation: fadeInUp 0.8s ease both;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.03);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 60%;
}

.banner-content h2 {
    color: white;
    border: none;
    font-size: 2.2rem;
    margin-top: 0;
    margin-bottom: 16px;
    font-weight: 800;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.banner-content p {
    color: #f0f4fa;
    max-width: 600px;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.banner svg {
    width: 200px;
    height: 200px;
    opacity: 0.9;
    position: relative;
    z-index: 2;
    animation: float 4s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.2));
}

.badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    margin-right: 10px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.3);
    transition: all var(--transition-fast);
}

.badge:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* ===== 卡片网格 ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin: 30px 0;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease both;
    animation-delay: calc(var(--card-index, 0) * 0.1s);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.card:hover {
    transform: var(--hover-lift);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
    border-color: var(--primary);
}

.card:hover::before {
    transform: scaleX(1);
}

.card h3 {
    margin-top: 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card h3 span {
    font-size: 1.5rem;
}

.card p {
    color: var(--text);
    font-size: 0.95rem;
}

.card .badge {
    background: var(--primary);
    color: white;
}

/* ===== 表格 ===== */
.info-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 24px 0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.info-table th, .info-table td {
    border: none;
    padding: 16px 20px;
    text-align: left;
}

.info-table th {
    background: var(--card-bg);
    color: var(--heading);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-table td {
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
}

.info-table tbody tr {
    transition: background var(--transition-fast);
}

.info-table tbody tr:hover {
    background: rgba(43, 87, 151, 0.05);
}

/* ===== 文章列表 ===== */
.article-list {
    margin: 40px 0;
}

.article-item {
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
    transition: all var(--transition-fast);
    animation: fadeInUp 0.6s ease both;
    animation-delay: calc(var(--article-index, 0) * 0.05s);
}

.article-item:last-child {
    border-bottom: none;
}

.article-item:hover {
    padding-left: 16px;
    border-left: 3px solid var(--primary);
}

.article-item h3 {
    margin: 0 0 8px;
    font-size: 1.2rem;
}

.article-item h3 a {
    color: var(--heading);
    transition: color var(--transition-fast);
}

.article-item h3 a:hover {
    color: var(--primary);
    text-decoration: none;
}

.article-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.article-meta::before {
    content: '📅';
    font-size: 0.9rem;
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

.read-more:hover {
    gap: 12px;
}

/* ===== FAQ ===== */
.faq-item {
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 14px;
    padding: 0 20px;
    border: 1px solid var(--border);
    transition: all var(--transition-fast);
    animation: fadeInUp 0.5s ease both;
    animation-delay: calc(var(--faq-index, 0) * 0.05s);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(43, 87, 151, 0.1);
}

.faq-question {
    padding: 20px 0;
    cursor: pointer;
    font-weight: 600;
    color: var(--heading);
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    user-select: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    transition: transform var(--transition-slow);
    flex-shrink: 0;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 0 20px;
    color: var(--text);
    display: none;
    font-size: 0.95rem;
    line-height: 1.8;
    animation: fadeIn 0.3s ease;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ===== HowTo 样式 ===== */
#howto {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 40px;
    margin: 40px 0;
    border: 1px solid var(--border);
}

#howto ol {
    margin: 20px 0;
    padding-left: 24px;
}

#howto ol li {
    margin-bottom: 12px;
    padding: 8px 16px;
    background: var(--bg);
    border-radius: 8px;
    border-left: 3px solid var(--primary);
    transition: all var(--transition-fast);
}

#howto ol li:hover {
    transform: translateX(6px);
    border-left-color: var(--primary-dark);
}

/* ===== 联系信息 ===== */
#contact {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 40px;
    margin: 40px 0;
    border: 1px solid var(--border);
}

#contact p {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

#contact p::before {
    content: '📍';
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ===== Footer ===== */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    margin-top: 60px;
    padding: 50px 0 30px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

footer h4 {
    color: var(--footer-text);
    margin-bottom: 16px;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 8px;
}

footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

footer ul {
    list-style: none;
    padding: 0;
}

footer ul li {
    margin-bottom: 10px;
}

footer a {
    color: var(--footer-text);
    text-decoration: none;
    opacity: 0.8;
    transition: all var(--transition-fast);
    font-size: 0.95rem;
}

footer a:hover {
    color: var(--primary);
    opacity: 1;
    text-decoration: none;
    padding-left: 6px;
}

.copyright {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 20px;
    padding-top: 20px;
    text-align: center;
    color: var(--footer-text);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===== 返回顶部 ===== */
#backTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 52px;
    height: 52px;
    font-size: 24px;
    cursor: pointer;
    display: none;
    z-index: 999;
    box-shadow: 0 4px 16px rgba(43, 87, 151, 0.3);
    transition: all var(--transition-slow);
    opacity: 0;
    transform: translateY(20px);
}

#backTop.show {
    opacity: 1;
    transform: translateY(0);
}

#backTop:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(43, 87, 151, 0.4);
    background: var(--primary-dark);
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* ===== 滚动动画 ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 统计数字 ===== */
.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }
    
    .banner-content {
        max-width: 55%;
    }
    
    .banner svg {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-inner {
        padding: 12px 16px;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        padding: 12px 0;
        border-top: 1px solid var(--border);
        margin-top: 8px;
    }
    
    .nav-links.show {
        display: flex;
        animation: fadeIn 0.3s ease;
    }
    
    .nav-links a {
        width: 100%;
        padding: 12px 8px;
        font-size: 1rem;
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .menu-toggle {
        display: inline-block;
    }
    
    .search-box {
        order: 3;
        width: 100%;
        margin-top: 8px;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .nav-actions {
        gap: 6px;
    }
    
    .theme-toggle {
        padding: 8px 10px;
    }
    
    .banner {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
        margin: 24px 0;
    }
    
    .banner-content {
        max-width: 100%;
        margin-bottom: 24px;
    }
    
    .banner-content h2 {
        font-size: 1.8rem;
    }
    
    .banner-content p {
        font-size: 1rem;
    }
    
    .banner svg {
        width: 120px;
        height: 120px;
        margin-top: 0;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .card {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .info-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .info-table th, .info-table td {
        padding: 12px 16px;
    }
    
    .article-item {
        padding: 20px 0;
    }
    
    #howto, #contact {
        padding: 24px;
    }
    
    #backTop {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }
    
    footer {
        padding: 40px 0 20px;
    }
    
    .footer-grid {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .logo svg {
        width: 32px;
        height: 32px;
    }
    
    .banner {
        padding: 30px 16px;
    }
    
    .banner-content h2 {
        font-size: 1.5rem;
    }
    
    .badge {
        font-size: 0.8rem;
        padding: 4px 12px;
    }
    
    .card-grid {
        gap: 12px;
    }
    
    .card {
        padding: 16px;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
    
    .article-item h3 {
        font-size: 1.05rem;
    }
    
    #howto, #contact {
        padding: 20px;
        border-radius: 16px;
    }
    
    .faq-question {
        font-size: 0.95rem;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .navbar, .banner, #backTop, footer, .search-box, .theme-toggle, .menu-toggle {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card, .info-table, #howto, #contact {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ===== 无障碍 ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== 高对比度模式 ===== */
@media (prefers-contrast: high) {
    :root {
        --text: #000000;
        --text-secondary: #333333;
        --border: #000000;
        --primary: #0000ff;
    }
    
    [data-theme="dark"] {
        --text: #ffffff;
        --text-secondary: #cccccc;
        --border: #ffffff;
        --primary: #ffff00;
    }
}

/* ===== 焦点可见性 ===== */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== 选择文本 ===== */
::selection {
    background: var(--primary);
    color: white;
    text-shadow: none;
}

/* ===== 图片响应式 ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== 链接图标装饰 ===== */
a[target="_blank"]::after {
    content: ' ↗';
    font-size: 0.8em;
    opacity: 0.6;
}

/* ===== 代码块 ===== */
code, pre {
    background: var(--code-bg);
    border-radius: 8px;
    padding: 2px 8px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.9em;
}

pre {
    padding: 16px;
    overflow-x: auto;
    border: 1px solid var(--border);
    margin: 16px 0;
}

/* ===== 文章容器 ===== */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.article-content p {
    margin-bottom: 1.5rem;
}

/* ===== 标签 ===== */
.tag {
    display: inline-block;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 4px 14px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 4px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(43, 87, 151, 0.05);
}

/* ===== 分隔线 ===== */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 40px 0;
}

/* ===== 工具类 ===== */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary);
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }

.flex {
    display: flex;
    align-items: center;
    gap: 16px;
}

.flex-wrap {
    flex-wrap: wrap;
}

.justify-between {
    justify-content: space-between;
}

/* ===== 滚动进度条 ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    z-index: 1001;
    border-radius: 0 3px 3px 0;
    transition: width 0.1s linear;
}