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

:root {
    --primary: #f0c040;
    --primary-dark: #d4a830;
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --text-light: #f0f0f5;
    --text-muted: #a0a0b8;
    --glass-bg: rgba(26, 26, 46, 0.6);
    --glass-border: rgba(240, 192, 64, 0.2);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s ease;
    --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
    background-image: radial-gradient(ellipse at 20% 50%, rgba(240, 192, 64, 0.05) 0%, transparent 60%),
                      radial-gradient(ellipse at 80% 20%, rgba(240, 192, 64, 0.03) 0%, transparent 50%);
}

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

a:hover {
    color: #fff;
}

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    color: #fff;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    margin: 16px auto 0;
    border-radius: 4px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary);
}

/* ===== 滚动动画 (AOS 风格) ===== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition);
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #1a1a2e;
    box-shadow: 0 4px 20px rgba(240, 192, 64, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(240, 192, 64, 0.5);
    color: #1a1a2e;
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: #1a1a2e;
    transform: translateY(-3px);
}

/* ===== 头部导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(240, 192, 64, 0.1);
    transition: background var(--transition);
}

.main-nav {
    padding: 0 20px;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-svg {
    height: 36px;
    width: auto;
}

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

.nav-item {
    padding: 8px 18px;
    border-radius: 30px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition);
    position: relative;
}

.nav-item:hover,
.nav-item.active {
    color: #fff;
    background: rgba(240, 192, 64, 0.15);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dark-mode-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition);
    background: rgba(255, 255, 255, 0.05);
}

.dark-mode-btn:hover {
    background: rgba(240, 192, 64, 0.15);
    color: var(--primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.menu-toggle .bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    border-radius: 4px;
    transition: all var(--transition);
}

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

.menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
    opacity: 0;
}

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

/* ===== Hero 轮播 ===== */
.hero-section {
    padding-top: 70px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 15, 26, 0.9) 0%, rgba(26, 26, 46, 0.7) 100%),
                url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 900"%3E%3Cdefs%3E%3ClinearGradient id="a" x1="0%25" y1="0%25" x2="100%25" y2="100%25"%3E%3Cstop offset="0%25" stop-color="%23f0c040" stop-opacity="0.1"/%3E%3Cstop offset="100%25" stop-color="%23f0c040" stop-opacity="0.02"/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect fill="url(%23a)" width="1440" height="900"/%3E%3C/svg%3E');
    background-size: cover;
    z-index: 0;
}

.hero-slider {
    position: relative;
    width: 100%;
    z-index: 1;
}

.slide {
    display: none;
    padding: 80px 20px;
    text-align: center;
    animation: fadeSlide 0.6s ease;
}

.slide.active {
    display: block;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.slider-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: none;
}

.slider-prev,
.slider-next {
    pointer-events: auto;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: #fff;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.slider-prev:hover,
.slider-next:hover {
    background: var(--primary);
    color: #1a1a2e;
    transform: scale(1.1);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.dot.active {
    background: var(--primary);
    box-shadow: 0 0 20px rgba(240, 192, 64, 0.5);
    transform: scale(1.2);
}

/* ===== About Section ===== */
.about-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #13132a 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.about-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(240, 192, 64, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
}

.about-card:hover::before {
    opacity: 1;
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.about-card p {
    color: var(--text-muted);
    line-height: 1.8;
}

/* ===== Products Section ===== */
.products-section {
    background: linear-gradient(0deg, var(--bg-dark) 0%, #13132a 100%);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.product-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.product-icon {
    margin: 0 auto 20px;
    transition: transform var(--transition);
}

.product-card:hover .product-icon {
    transform: scale(1.15) rotate(5deg);
}

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

/* ===== Services Section ===== */
.services-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #13132a 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: all var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card p {
    color: var(--text-muted);
}

/* ===== Solutions Section ===== */
.solutions-section {
    background: linear-gradient(0deg, var(--bg-dark) 0%, #13132a 100%);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.solution-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: all var(--transition);
}

.solution-card:hover {
    transform: translateY(-6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.solution-card p {
    color: var(--text-muted);
}

/* ===== Features Section ===== */
.features-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #13132a 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 28px;
}

.feature-item {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
}

.feature-item:hover {
    transform: translateY(-6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    margin: 0 auto 16px;
    transition: transform var(--transition);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
}

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

/* ===== Advantages Section ===== */
.advantages-section {
    background: linear-gradient(0deg, var(--bg-dark) 0%, #13132a 100%);
}

.advantages-list {
    display: grid;
    gap: 28px;
}

.advantage-item {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    position: relative;
    padding-left: 40px;
}

.advantage-item::before {
    content: '◆';
    position: absolute;
    left: 16px;
    top: 36px;
    color: var(--primary);
    font-size: 1.2rem;
}

.advantage-item:hover {
    transform: translateX(6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.advantage-item p {
    color: var(--text-muted);
}

/* ===== Resources Section ===== */
.resources-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #13132a 100%);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.resource-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    transform: translateY(-6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.resource-card p {
    color: var(--text-muted);
    flex: 1;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.resource-link {
    color: var(--primary);
    font-weight: 600;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.resource-link:hover {
    color: #fff;
    gap: 8px;
}

/* ===== FAQ Section ===== */
.faq-section {
    background: linear-gradient(0deg, var(--bg-dark) 0%, #13132a 100%);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}

.faq-item {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item:hover {
    border-color: rgba(240, 192, 64, 0.3);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 500;
    font-size: 1.05rem;
    transition: background var(--transition);
    user-select: none;
}

.faq-question:hover {
    background: rgba(240, 192, 64, 0.05);
}

.faq-question[aria-expanded="true"] {
    background: rgba(240, 192, 64, 0.08);
}

.faq-q {
    flex: 1;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    margin-left: 16px;
    transition: transform var(--transition);
}

.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-answer[hidden] {
    display: none;
}

/* ===== HowTo Section ===== */
.howto-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #13132a 100%);
}

.howto-intro {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.howto-steps {
    max-width: 700px;
    margin: 0 auto;
    counter-reset: step-counter;
    display: grid;
    gap: 20px;
}

.step {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 24px 28px 60px;
    position: relative;
    transition: all var(--transition);
    counter-increment: step-counter;
}

.step::before {
    content: counter(step-counter);
    position: absolute;
    left: 16px;
    top: 28px;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #1a1a2e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step:hover {
    transform: translateX(6px);
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.step p {
    color: var(--text-muted);
}

.howto-tips {
    max-width: 700px;
    margin: 40px auto 0;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 32px;
}

.howto-tips ul {
    list-style: disc;
    padding-left: 20px;
    color: var(--text-muted);
    display: grid;
    gap: 8px;
}

.howto-tips li {
    line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact-section {
    background: linear-gradient(0deg, var(--bg-dark) 0%, #13132a 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-info,
.contact-form-sim {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
}

.contact-info:hover,
.contact-form-sim:hover {
    border-color: rgba(240, 192, 64, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.contact-info p {
    margin-bottom: 12px;
    color: var(--text-muted);
}

.contact-info strong {
    color: var(--text-light);
}

.contact-form-sim p {
    color: var(--text-muted);
}

/* ===== Footer ===== */
.site-footer {
    background: #0a0a16;
    border-top: 1px solid rgba(240, 192, 64, 0.1);
    padding: 60px 0 30px;
}

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

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--primary);
}

.footer-col p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    gap: 8px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin-bottom: 6px;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.back-to-top:hover {
    background: var(--primary);
    color: #1a1a2e;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(240, 192, 64, 0.4);
}

.back-to-top[hidden] {
    display: none;
}

/* ===== 暗色模式 (默认即暗色, 但保留切换能力) ===== */
html.dark body {
    background: var(--bg-dark);
    color: var(--text-light);
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        transform: translateY(-120%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid rgba(240, 192, 64, 0.1);
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-item {
        padding: 14px 20px;
        font-size: 1rem;
        width: 100%;
        text-align: center;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 36px;
    }

    .about-grid,
    .products-grid,
    .services-grid,
    .solutions-grid,
    .features-grid,
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .slider-controls {
        display: none;
    }

    .step {
        padding: 24px 20px 24px 56px;
    }

    .step::before {
        left: 12px;
        top: 24px;
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .btn {
        padding: 12px 28px;
        font-size: 0.9rem;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .container {
        padding: 0 16px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: rgba(240, 192, 64, 0.3);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(240, 192, 64, 0.5);
}

/* ===== 选中文本 ===== */
::selection {
    background: rgba(240, 192, 64, 0.3);
    color: #fff;
}

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

/* ===== 渐变Banner装饰 ===== */
.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--bg-dark), transparent);
    z-index: 0;
    pointer-events: none;
}