:root {
    --primary: #eab308;
    --accent: #f59e0b;
    --bg: #18181b;
    --text: #fafafa;
    --text-dim: #a1a1aa;
    --card-bg: #27272a;
    --glass: rgba(24, 24, 27, 0.85);
}

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

body {
    font-family: 'Noto Sans SC', 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.7;
}

h1, h2, h3, h4, h5, .display-title {
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
}

/* 背景光晕效果 */
.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bg-glow::before,
.bg-glow::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    animation: glowFloat 12s ease-in-out infinite alternate;
}

.bg-glow::before {
    background: var(--primary);
    top: 10%;
    left: -100px;
}

.bg-glow::after {
    background: var(--accent);
    bottom: 10%;
    right: -100px;
    animation-delay: 3s;
}

@keyframes glowFloat {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-40px) scale(1.2); }
}

.navbar {
    background: rgba(24, 24, 27, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(234, 179, 8, 0.15);
    padding: 12px 0;
    z-index: 1000;
}

.navbar-brand {
    font-family: 'Noto Serif SC', serif;
    font-weight: 900;
    font-size: 1.6rem;
    color: var(--primary) !important;
    text-shadow: 0 0 20px rgba(234, 179, 8, 0.3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand i {
    font-size: 1.4rem;
}

.navbar-nav .nav-link {
    color: var(--text) !important;
    font-weight: 500;
    padding: 8px 16px;
    transition: color 0.3s;
}

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

.navbar-toggler {
    border-color: rgba(234, 179, 8, 0.3);
}

.navbar-toggler-icon {
    filter: invert(1);
}

/* Hero 区域 */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: 
        radial-gradient(circle at 30% 50%, rgba(234, 179, 8, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
    padding: 80px 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .typing {
    display: block;
    font-size: clamp(2rem, 6vw, 4rem);
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-dim);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-custom {
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary-gold {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg);
    border: none;
    box-shadow: 0 4px 20px rgba(234, 179, 8, 0.4);
}

.btn-primary-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(234, 179, 8, 0.6);
}

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

.btn-outline-custom:hover {
    background: var(--primary);
    color: var(--bg);
}

/* 数据统计 */
.stats-section {
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

.stats-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    border: 1px solid rgba(234, 179, 8, 0.15);
    transition: all 0.4s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.stats-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(234, 179, 8, 0.2);
}

.stats-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
    font-family: 'Noto Serif SC', serif;
}

.stats-label {
    color: var(--text-dim);
    font-size: 1rem;
    margin-top: 8px;
}

/* 时间线 */
.timeline-section {
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline-item {
    position: relative;
    padding: 20px 0 20px 50px;
    border-left: 3px solid var(--primary);
    margin-left: 20px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -9px;
    top: 25px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 20px var(--primary);
}

.timeline-content {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 特色标签页 */
.features-section {
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

.nav-pills-custom {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.nav-pills-custom .nav-link {
    background: var(--card-bg);
    color: var(--text-dim);
    border: 1px solid rgba(234, 179, 8, 0.2);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s;
}

.nav-pills-custom .nav-link:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.nav-pills-custom .nav-link.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg);
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(234, 179, 8, 0.4);
}

.feature-panel {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(234, 179, 8, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* FAQ */
.faq-section {
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

.accordion-item {
    background: var(--card-bg);
    border: 1px solid rgba(234, 179, 8, 0.15);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
}

.accordion-button {
    background: var(--card-bg);
    color: var(--text);
    font-weight: 600;
    padding: 20px 24px;
    font-size: 1.1rem;
}

.accordion-button:not(.collapsed) {
    background: rgba(234, 179, 8, 0.1);
    color: var(--primary);
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    color: var(--text-dim);
    padding: 20px 24px;
    line-height: 1.8;
}

/* CTA */
.cta-section {
    padding: 100px 0;
    text-align: center;
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1), rgba(245, 158, 11, 0.05));
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 20px;
}

/* 友情链接 */
.friend-links {
    background: var(--bg);
    border-top: 1px solid rgba(234, 179, 8, 0.1);
    padding: 50px 0;
    position: relative;
    z-index: 2;
}

.friend-links-title {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.friend-links .link-item {
    color: var(--text-dim);
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.3s;
}

.friend-links .link-item:hover {
    color: var(--primary);
}

/* Footer */
.footer {
    background: #131316;
    padding: 40px 0;
    position: relative;
    z-index: 2;
    border-top: 1px solid rgba(234, 179, 8, 0.1);
}

.footer a {
    color: var(--text-dim);
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s;
}

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

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s ease;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(234, 179, 8, 0.4);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 滚动进入动画 */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 光标动画 */
.typing-cursor::after {
    content: '|';
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .timeline-item {
        padding-left: 30px;
        margin-left: 10px;
    }
    
    .feature-panel {
        padding: 20px;
    }
    
    .stats-number {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .about-hero {
            padding: 120px 0 60px;
            text-align: center;
            position: relative;
        }
.about-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
.about-hero p {
            color: var(--text-dim);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.8;
        }
.about-section {
            padding: 60px 0;
        }
.about-section h2 {
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
.about-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }
.about-card {
            background: var(--card-bg);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: 16px;
            padding: 30px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(234, 179, 8, 0.1);
        }
.about-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 20px;
        }
.about-card h3 {
            color: var(--text);
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
.about-card p {
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.timeline-custom {
            position: relative;
            padding-left: 30px;
            border-left: 3px solid var(--primary);
        }
.timeline-item-custom {
            position: relative;
            padding-bottom: 35px;
            padding-left: 20px;
        }
.timeline-item-custom::before {
            content: '';
            position: absolute;
            left: -38px;
            top: 5px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 3px var(--primary);
        }
.timeline-item-custom h3 {
            color: var(--text);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
.timeline-item-custom .date {
            color: var(--primary);
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
.timeline-item-custom p {
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.value-list {
            list-style: none;
            padding: 0;
        }
.value-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.6;
        }
.value-list li:last-child {
            border-bottom: none;
        }
.value-list li i {
            color: var(--primary);
            margin-top: 4px;
        }
.about-stats {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 40px;
            margin-top: 40px;
            border: 1px solid rgba(255,255,255,0.06);
        }
.about-stats .stats-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }
.about-stats .stats-label {
            color: var(--text-dim);
            font-size: 0.95rem;
        }
.about-hero {
                padding: 100px 0 40px;
            }
.about-hero h1 {
                font-size: 2rem;
            }
.about-card {
                margin-bottom: 20px;
            }

/* --- 子页面追加 --- */
.disclaimer-section {
            padding: 80px 0 60px;
            position: relative;
        }
.disclaimer-card {
            background: var(--card-bg);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: 12px;
            padding: 32px;
            margin-bottom: 28px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.disclaimer-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.3);
        }
.disclaimer-card h2 {
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.disclaimer-card h2 i {
            font-size: 1.3rem;
            color: var(--accent);
        }
.disclaimer-card p {
            color: var(--text-dim);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 12px;
        }
.disclaimer-card strong {
            color: var(--text);
        }
.disclaimer-card ul {
            color: var(--text-dim);
            padding-left: 20px;
            margin-bottom: 12px;
        }
.disclaimer-card li {
            margin-bottom: 8px;
            line-height: 1.7;
        }
.disclaimer-note {
            background: rgba(234, 179, 8, 0.08);
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin-bottom: 28px;
        }
.disclaimer-note p {
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 0;
        }
.disclaimer-note i {
            color: var(--primary);
            margin-right: 8px;
        }
.page-hero {
            padding: 100px 0 60px;
            position: relative;
        }
.page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
        }
.page-hero p {
            color: var(--text-dim);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }
.breadcrumb-custom {
            display: flex;
            gap: 12px;
            justify-content: center;
            align-items: center;
            color: var(--text-dim);
            font-size: 0.9rem;
            margin-bottom: 24px;
        }
.breadcrumb-custom a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s;
        }
.breadcrumb-custom a:hover {
            color: var(--accent);
        }
.breadcrumb-custom i {
            font-size: 0.7rem;
            color: var(--text-dim);
        }
.page-hero h1 {
                font-size: 2rem;
            }
.disclaimer-card {
                padding: 24px;
            }
.disclaimer-card h2 {
                font-size: 1.2rem;
            }

/* --- 子页面追加 --- */
/* 本页专属小范围补充样式 */
        .guide-hero { position: relative; padding: 140px 0 80px; background: radial-gradient(ellipse at 30% 20%, rgba(234, 179, 8, 0.15), transparent 50%), radial-gradient(ellipse at 80% 60%, rgba(245, 158, 11, 0.1), transparent 40%); }
.guide-hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 900; letter-spacing: -1px; margin-bottom: 20px; }
.guide-hero h1 span { color: var(--primary); }
.guide-hero p { color: var(--text-dim); font-size: 1.15rem; max-width: 700px; }
.step-panel { background: var(--card-bg); border: 1px solid rgba(234, 179, 8, 0.15); border-radius: 16px; padding: 30px; margin-bottom: 20px; transition: all 0.3s ease; }
.step-panel:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(234, 179, 8, 0.08); }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--bg); font-weight: 800; border-radius: 10px; margin-bottom: 15px; font-size: 1.1rem; }
.step-panel h3 { color: var(--text); font-weight: 700; margin-bottom: 12px; font-size: 1.3rem; }
.step-panel p, .step-panel li { color: var(--text-dim); font-size: 0.95rem; line-height: 1.8; }
.step-panel ul { padding-left: 20px; margin-bottom: 0; }
.step-panel ul li { margin-bottom: 6px; }
.tip-box { background: rgba(234, 179, 8, 0.08); border-left: 4px solid var(--primary); padding: 16px 20px; border-radius: 0 12px 12px 0; margin-top: 20px; }
.tip-box p { color: var(--text) !important; font-size: 0.9rem !important; margin: 0; }
.tip-box i { color: var(--primary); margin-right: 8px; }
.faq-item { background: var(--card-bg); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 12px; padding: 24px 28px; margin-bottom: 14px; transition: border-color 0.3s; }
.faq-item:hover { border-color: rgba(234, 179, 8, 0.4); }
.faq-item h4 { color: var(--text); font-weight: 600; font-size: 1.05rem; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.faq-item h4 i { color: var(--primary); font-size: 0.85rem; }
.faq-item p { color: var(--text-dim); font-size: 0.92rem; line-height: 1.8; margin: 0; }
.keyboard-shortcut { display: inline-block; background: rgba(234, 179, 8, 0.15); color: var(--primary); border: 1px solid rgba(234, 179, 8, 0.3); border-radius: 6px; padding: 2px 10px; font-size: 0.85rem; font-weight: 600; margin: 0 4px; }
.device-card { background: var(--card-bg); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 16px; padding: 28px; text-align: center; height: 100%; transition: all 0.3s ease; }
.device-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.device-card i { font-size: 2.2rem; color: var(--primary); margin-bottom: 16px; }
.device-card h5 { color: var(--text); font-weight: 600; margin-bottom: 10px; }
.device-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0; line-height: 1.7; }
.guide-hero { padding: 110px 0 60px; }
.step-panel { padding: 22px; }
.faq-item { padding: 18px 20px; }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }