/* ===== 全局重置与基础 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0a0e27;
    --primary-light: #1a1a4e;
    --accent: #f0b429;
    --accent-hover: #d49a1a;
    --bg: #f4f6fc;
    --bg-card: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #555555;
    --text-light: #aaaaaa;
    --border: rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radius: 1rem;
    --radius-sm: 0.75rem;
    --transition: 0.3s ease;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body.dark-mode {
    --primary: #0a0e27;
    --primary-light: #12163a;
    --bg: #0a0e27;
    --bg-card: #1a1a3e;
    --text: #e0e0e0;
    --text-secondary: #aaaaaa;
    --text-light: #888888;
    --border: rgba(255, 255, 255, 0.05);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.5);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
    min-height: 100vh;
}

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

ul, ol {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

button {
    cursor: pointer;
    font-family: inherit;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

/* ===== 头部导航 ===== */
header {
    background: var(--primary);
    color: #fff;
    padding: 0.8rem 2rem;
    position: relative;
    z-index: 1000;
    transition: box-shadow var(--transition), background var(--transition);
}

header.sticky {
    position: sticky;
    top: 0;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(12px);
    background: rgba(10, 14, 39, 0.92);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--accent);
    font-weight: 700;
    font-size: 1.4rem;
    transition: transform 0.3s;
}

.logo:hover {
    transform: scale(1.03);
}

.logo svg {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logo-text {
    color: #ffffff;
    font-size: 1.3rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu li {
    list-style: none;
}

.nav-menu a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    padding: 0.4rem 0;
    position: relative;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent);
}

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

.dark-mode-toggle {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.3rem;
    transition: transform 0.3s;
    line-height: 1;
}

.dark-mode-toggle:hover {
    transform: rotate(20deg);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 0.3rem;
}

.mobile-menu-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 主内容区 ===== */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem 2rem;
}

section {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

section:nth-child(2) { animation-delay: 0.1s; }
section:nth-child(3) { animation-delay: 0.2s; }
section:nth-child(4) { animation-delay: 0.3s; }
section:nth-child(5) { animation-delay: 0.4s; }
section:nth-child(6) { animation-delay: 0.5s; }
section:nth-child(7) { animation-delay: 0.6s; }
section:nth-child(8) { animation-delay: 0.7s; }
section:nth-child(9) { animation-delay: 0.8s; }
section:nth-child(10) { animation-delay: 0.9s; }
section:nth-child(11) { animation-delay: 1.0s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.6rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

body.dark-mode .section-header h2 {
    color: var(--accent);
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ===== Hero Section ===== */
#hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #2a2a6e 100%);
    color: #fff;
    padding: 5rem 2rem;
    text-align: center;
    border-radius: var(--radius);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(10, 14, 39, 0.3);
}

#hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(240, 180, 41, 0.08) 0%, transparent 60%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(2%, 2%) rotate(3deg); }
}

#hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--accent);
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.btn {
    padding: 0.8rem 2.2rem;
    border-radius: 2rem;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition);
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(240, 180, 41, 0.3);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(240, 180, 41, 0.4);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(240, 180, 41, 0.3);
}

.hero-banner {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.banner-slide {
    display: none;
    padding: 0.6rem 1.8rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 2rem;
    font-size: 1.05rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.5s;
}

.banner-slide.active {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    animation: bannerFade 0.5s ease;
}

@keyframes bannerFade {
    0% { opacity: 0; transform: scale(0.95); }
    100% { opacity: 1; transform: scale(1); }
}

.banner-icon {
    font-size: 1.4rem;
}

/* ===== Products Section ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), #f5d06b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

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

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform 0.3s;
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(-5deg);
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
    color: var(--text);
}

body.dark-mode .card h3 {
    color: var(--accent);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.7;
}

.card-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.3s;
}

.card-link:hover {
    gap: 0.6rem;
    text-decoration: underline;
}

/* ===== Services Section ===== */
.services-list {
    display: grid;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.service-item {
    background: var(--bg-card);
    padding: 1.8rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border-left: 4px solid var(--accent);
}

.service-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-hover);
}

.service-item h3 {
    color: var(--text);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

body.dark-mode .service-item h3 {
    color: var(--accent);
}

.service-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== About Section ===== */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(4px);
    transition: all var(--transition);
}

.about-content:hover {
    box-shadow: var(--shadow-hover);
}

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

.about-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.about-meta span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.about-meta strong {
    color: var(--text);
}

body.dark-mode .about-meta strong {
    color: var(--accent);
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    background: var(--bg-card);
    padding: 1.8rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    text-align: center;
    backdrop-filter: blur(4px);
}

.feature-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.feature-item h3 {
    color: var(--text);
    margin-bottom: 0.6rem;
    font-size: 1.2rem;
}

body.dark-mode .feature-item h3 {
    color: var(--accent);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Comparison Table ===== */
.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

body.dark-mode .comparison-table {
    background: rgba(255, 255, 255, 0.08);
}

.table-row {
    display: contents;
}

.table-row > span {
    background: var(--bg-card);
    padding: 1rem 1.2rem;
    text-align: center;
    color: var(--text-secondary);
    transition: background 0.3s;
}

.table-row > span:hover {
    background: rgba(240, 180, 41, 0.05);
}

.table-header > span {
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
}

body.dark-mode .table-header > span {
    background: #1a1a3e;
    color: var(--accent);
}

/* ===== Resources Section ===== */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.resource-card {
    background: var(--bg-card);
    padding: 1.8rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.resource-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(240, 180, 41, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(20px, 20px);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.resource-card h3 {
    color: var(--text);
    margin-bottom: 0.6rem;
    font-size: 1.15rem;
}

body.dark-mode .resource-card h3 {
    color: var(--accent);
}

.resource-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.resource-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.3s;
}

.resource-link:hover {
    gap: 0.6rem;
    text-decoration: underline;
}

/* ===== FAQ Section ===== */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border-radius: 0.6rem;
    margin-bottom: 0.8rem;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow);
}

.faq-item summary {
    padding: 1.1rem 1.3rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color 0.3s;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--accent);
    transition: transform 0.3s;
}

.faq-item[open] summary::after {
    content: '−';
    transform: rotate(180deg);
}

body.dark-mode .faq-item summary {
    color: var(--accent);
}

.faq-item p {
    padding: 0 1.3rem 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== HowTo Section ===== */
.howto-steps {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(4px);
}

.howto-steps ol {
    padding-left: 1.5rem;
    margin-bottom: 1.2rem;
    counter-reset: step-counter;
}

.howto-steps li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 0.5rem;
    counter-increment: step-counter;
    position: relative;
}

.howto-steps li::marker {
    color: var(--accent);
    font-weight: 700;
}

.howto-steps li strong {
    color: var(--text);
}

body.dark-mode .howto-steps li strong {
    color: var(--accent);
}

.howto-note {
    background: rgba(240, 180, 41, 0.1);
    padding: 0.8rem 1.2rem;
    border-radius: 0.5rem;
    color: var(--text);
    font-weight: 500;
    border-left: 3px solid var(--accent);
}

body.dark-mode .howto-note {
    background: rgba(240, 180, 41, 0.08);
    color: var(--accent);
}

/* ===== Contact Section ===== */
.contact-info {
    max-width: 500px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.contact-info:hover {
    box-shadow: var(--shadow-hover);
}

.contact-info p {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info p strong {
    color: var(--text);
    min-width: 100px;
}

body.dark-mode .contact-info p strong {
    color: var(--accent);
}

/* ===== Footer ===== */
footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 2.5rem 2rem;
    text-align: center;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.8rem;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s;
}

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

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

.footer-copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    font-size: 1.4rem;
    cursor: pointer;
    display: none;
    box-shadow: 0 4px 15px rgba(240, 180, 41, 0.3);
    z-index: 1000;
    transition: all var(--transition);
    line-height: 1;
}

.back-to-top:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(240, 180, 41, 0.4);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    main {
        padding: 1.5rem 1.5rem 2rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    #hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 0.7rem 1.2rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 1.2rem;
        gap: 0.8rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu a {
        padding: 0.6rem 0;
        font-size: 1rem;
    }
    
    main {
        padding: 1rem 1rem 1.5rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    #hero {
        padding: 3.5rem 1.2rem;
        border-radius: 0.8rem;
    }
    
    #hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .cards-grid,
    .features-grid,
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .about-meta {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: 0.85rem;
        grid-template-columns: 1fr 1fr 1fr 1fr;
        overflow-x: auto;
    }
    
    .table-row > span {
        padding: 0.7rem 0.8rem;
    }
    
    .howto-steps {
        padding: 1.5rem;
    }
    
    .contact-info {
        padding: 1.5rem;
    }
    
    .footer-links {
        gap: 1rem;
    }
    
    .back-to-top {
        bottom: 1.2rem;
        right: 1.2rem;
        width: 2.6rem;
        height: 2.6rem;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.1rem;
    }
    
    .logo svg {
        width: 30px;
        height: 30px;
    }
    
    #hero h1 {
        font-size: 1.6rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 80%;
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: 1.3rem;
    }
    
    .section-header p {
        font-size: 0.95rem;
    }
    
    .card,
    .service-item,
    .feature-item,
    .resource-card {
        padding: 1.3rem;
    }
    
    .about-content {
        padding: 1.5rem;
    }
    
    .comparison-table {
        font-size: 0.75rem;
    }
    
    .table-row > span {
        padding: 0.5rem 0.4rem;
    }
    
    .howto-steps ol {
        padding-left: 1rem;
    }
    
    .contact-info p {
        font-size: 0.95rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
    }
    
    .contact-info p strong {
        min-width: auto;
    }
}

/* ===== 暗色模式额外适配 ===== */
body.dark-mode .card,
body.dark-mode .service-item,
body.dark-mode .about-content,
body.dark-mode .feature-item,
body.dark-mode .resource-card,
body.dark-mode .faq-item,
body.dark-mode .howto-steps,
body.dark-mode .contact-info {
    background: var(--bg-card);
    border-color: rgba(255, 255, 255, 0.05);
}

body.dark-mode .table-row > span {
    background: var(--bg-card);
}

/* ===== 打印样式 ===== */
@media print {
    header,
    footer,
    .back-to-top,
    .dark-mode-toggle,
    .mobile-menu-toggle,
    .hero-banner,
    .hero-actions {
        display: none !important;
    }
    
    body {
        background: #fff;
        color: #000;
    }
    
    section {
        break-inside: avoid;
        padding: 1rem 0;
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
    }
    
    .card,
    .service-item,
    .about-content,
    .feature-item,
    .resource-card,
    .faq-item,
    .howto-steps,
    .contact-info {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}