:root {
    --color-primary: #00D9FF;
    --color-accent: #8338EC;
    --color-secondary: #FF0080;
    --color-dark: #050508;
    --color-surface: #0A0A12;
    --color-text: #ffffff;
    --color-muted: #666680;
    --gradient-primary: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    --gradient-accent: linear-gradient(135deg, #8338EC 0%, #FF0080 100%);
    --gradient-soft: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(131, 56, 236, 0.1) 100%);
    --shadow-glow: 0 0 30px rgba(0, 217, 255, 0.3);
    --shadow-glow-accent: 0 0 30px rgba(131, 56, 236, 0.3);
}

* {
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #050508;
    background-image:
        radial-gradient(ellipse at top left, rgba(0, 217, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(131, 56, 236, 0.08) 0%, transparent 50%);
    background-attachment: fixed;
    color: #ffffff;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #050508;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #1a1a2e, #333355);
    border-radius: 4px;
    border: 1px solid rgba(0, 217, 255, 0.1);
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #00D9FF, #8338EC);
}

/* 文字渐变 */
.text-gradient {
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-accent {
    background: linear-gradient(135deg, #8338EC 0%, #FF0080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 按钮脉冲 */
.btn-pulse {
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 217, 255, 0.4); }
    50% { box-shadow: 0 0 30px rgba(0, 217, 255, 0.6), 0 0 40px rgba(0, 217, 255, 0.3); }
}

/* 发光阴影 */
.shadow-neon {
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.3);
}

.shadow-neon-accent {
    box-shadow: 0 0 30px rgba(131, 56, 236, 0.3);
}

/* 玻璃效果 */
.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    pointer-events: none;
}

.glass:hover {
    border-color: rgba(0, 217, 255, 0.25);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 217, 255, 0.1);
}

.glass-strong {
    background: rgba(10, 10, 18, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* 网格背景 */
.bg-grid {
    background-size: 40px 40px;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
}

/* 浮动动画 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float-slow {
    animation: float 8s ease-in-out infinite;
}

.animate-float-delay {
    animation: float 6s ease-in-out infinite;
    animation-delay: 2s;
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out;
}

/* 渐变边框 */
.gradient-border {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.5), rgba(131, 56, 236, 0.5));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* FAQ样式 */
.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.3s ease;
}

.faq-item.active .faq-content {
    max-height: 500px;
}

.faq-icon {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

details[open] summary ~ * {
    animation: fadeSlide 0.3s ease-out;
}

@keyframes fadeSlide {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* details/summary 样式优化 */
details summary {
    list-style: none;
    cursor: pointer;
}

details summary::-webkit-details-marker {
    display: none;
}

/* 滑入动画 */
.slide-up {
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-up.show {
    transform: translateY(0);
}

/* 下载按钮 */
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.6s ease;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:active {
    transform: scale(0.96);
}

/* 按钮通用 */
.btn-primary {
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    font-weight: 700;
    border-radius: 9999px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(0, 217, 255, 0.4);
    transform: translateY(-1px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-ghost:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: rgba(0, 217, 255, 0.4);
    color: #00D9FF;
}

/* 徽章/标签 */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

.badge-primary {
    background: rgba(0, 217, 255, 0.12);
    border: 1px solid rgba(0, 217, 255, 0.3);
    color: #00D9FF;
}

.badge-accent {
    background: rgba(131, 56, 236, 0.12);
    border: 1px solid rgba(131, 56, 236, 0.3);
    color: #C4A0FF;
}

.badge-success {
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ADE80;
}

/* 脉冲点 */
.pulse-dot {
    position: relative;
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.4;
    animation: pulseRing 2s ease-out infinite;
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 0.4; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* 数字数据卡 */
.stat-card {
    position: relative;
    padding: 2rem 1.5rem;
    text-align: center;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.stat-card:hover {
    border-color: rgba(0, 217, 255, 0.25);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #8888AA;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

/* 星级评分 */
.rating {
    display: inline-flex;
    gap: 2px;
}

.rating svg {
    width: 14px;
    height: 14px;
    color: #FBBF24;
    filter: drop-shadow(0 0 4px rgba(251, 191, 36, 0.4));
}

/* 用户评价卡片 */
.testimonial-card {
    padding: 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 0.5rem;
    right: 1.25rem;
    font-size: 4rem;
    font-family: Georgia, serif;
    font-weight: bold;
    color: rgba(0, 217, 255, 0.08);
    line-height: 1;
    pointer-events: none;
}

.testimonial-card:hover {
    border-color: rgba(0, 217, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.testimonial-card:hover::before {
    color: rgba(0, 217, 255, 0.15);
}

/* 套餐卡片 */
.plan-card {
    padding: 2rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.plan-card:hover {
    border-color: rgba(0, 217, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.plan-card.featured {
    background: linear-gradient(180deg, rgba(0, 217, 255, 0.08) 0%, rgba(131, 56, 236, 0.05) 100%);
    border-color: rgba(0, 217, 255, 0.3);
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.15);
}

.plan-card.featured:hover {
    border-color: rgba(0, 217, 255, 0.5);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 60px rgba(0, 217, 255, 0.2);
}

.plan-card .ribbon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin: 1rem 0;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.plan-price .currency {
    font-size: 1.5rem;
    color: #8888AA;
}

.plan-price .period {
    color: #8888AA;
    font-size: 0.875rem;
    margin-left: 0.25rem;
}

/* 功能列表 */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: #CCCCDD;
    line-height: 1.5;
}

.feature-list .check-icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: #00D9FF;
    margin-top: 2px;
}

.feature-list li.disabled {
    color: #555566;
}

.feature-list li.disabled .check-icon {
    color: #333344;
}

/* 步骤指引 */
.step-item {
    text-align: center;
    padding: 1.5rem;
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 1rem;
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    margin-bottom: 1rem;
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.25);
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 1.25rem;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    opacity: 0.2;
    filter: blur(12px);
    z-index: -1;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #fff;
}

.step-desc {
    font-size: 0.875rem;
    color: #8888AA;
    line-height: 1.6;
}

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table thead tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-table th {
    text-align: left;
    padding: 1rem;
    font-weight: 600;
    color: #fff;
    font-size: 0.8125rem;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

.data-table tbody tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.2s ease;
}

.data-table tbody tr:hover {
    background: rgba(0, 217, 255, 0.04);
}

.data-table tbody tr:last-child {
    border-bottom: none;
}

.data-table td {
    padding: 1rem;
    color: #A8A8C0;
}

/* FAQ折叠 */
.faq-item-card {
    border-radius: 0.875rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.faq-item-card[open] {
    border-color: rgba(0, 217, 255, 0.25);
    background: rgba(0, 217, 255, 0.03);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.faq-item-card summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    user-select: none;
    transition: color 0.2s ease;
}

.faq-item-card summary:hover {
    color: #00D9FF;
}

.faq-item-card summary .icon-wrapper {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(0, 217, 255, 0.1);
    color: #00D9FF;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.faq-item-card[open] summary .icon-wrapper {
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    transform: rotate(180deg);
}

.faq-item-card .faq-body {
    padding: 0 1.5rem 1.25rem;
    color: #A8A8C0;
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* 下载卡 */
.download-card {
    padding: 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.download-card:hover {
    border-color: rgba(0, 217, 255, 0.25);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.download-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 0.875rem;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.15) 0%, rgba(131, 56, 236, 0.15) 100%);
    color: #00D9FF;
    margin-bottom: 1rem;
}

/* 主下载卡片 */
.hero-download-card {
    padding: 2.5rem;
    border-radius: 1.5rem;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.06) 0%, rgba(131, 56, 236, 0.04) 100%);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 217, 255, 0.25);
    box-shadow: 0 0 60px rgba(0, 217, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.hero-download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.5), transparent);
}

.hero-download-card:hover {
    border-color: rgba(0, 217, 255, 0.4);
    box-shadow: 0 0 80px rgba(0, 217, 255, 0.15), 0 30px 60px rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
}

.hero-download-icon {
    width: 5rem;
    height: 5rem;
    border-radius: 1.25rem;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
    position: relative;
}

.hero-download-icon::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 1.5rem;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    opacity: 0.25;
    filter: blur(16px);
    z-index: -1;
}

/* 分类标题块 */
.category-block {
    padding: 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1.5rem;
}

.category-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.875rem;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.15) 0%, rgba(131, 56, 236, 0.15) 100%);
    color: #00D9FF;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* 页面标题区 */
.page-hero {
    position: relative;
    padding: 6rem 1.5rem 4rem;
    text-align: center;
    overflow: hidden;
}

.page-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.75rem;
    color: #A8A8C0;
    margin-bottom: 1.5rem;
}

.page-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.page-hero p {
    font-size: clamp(0.9375rem, 1.5vw, 1.125rem);
    color: #8888AA;
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.7;
}

/* section通用标题 */
.section-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: #8888AA;
    font-size: clamp(0.875rem, 1.2vw, 1rem);
}

/* 头像 */
.avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.25);
    position: relative;
}

.avatar::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 9999px;
    background: linear-gradient(135deg, #00D9FF 0%, #8338EC 100%);
    opacity: 0.3;
    filter: blur(8px);
    z-index: -1;
}

/* section间距 */
.section-spacing {
    padding: 3rem 1.5rem;
}

@media (min-width: 768px) {
    .section-spacing {
        padding: 5rem 1.5rem;
    }
}

/* 触控优化 */
@media (hover: none) {
    .download-btn:active {
        transform: scale(0.98);
    }
    
    .glass:active {
        transform: scale(0.99);
    }
}

/* 防止横向滚动 */
.no-scroll-x {
    overflow-x: hidden;
}

/* 安全区域适配（刘海屏） */
.safe-area-top {
    padding-top: env(safe-area-inset-top);
}
.safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom);
}

/* 页面进入动画 */
@keyframes pageFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body {
    animation: pageFadeIn 0.6s ease-out;
}

/* 导航链接活跃态 */
.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #00D9FF, #8338EC);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

/* 移动端菜单项 */
.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    color: #A8A8C0;
    font-weight: 500;
    transition: all 0.2s ease;
}

.mobile-menu-item:hover,
.mobile-menu-item.active {
    background: rgba(0, 217, 255, 0.08);
    color: #00D9FF;
}

.mobile-menu-item .icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

/* 分隔线 */
.fancy-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 2rem 0;
    border: none;
}