/* ============================================================
   妖精视频 - 完整样式表 (style.css)
   动漫二次元视频分享站 | maidianshop.com.cn
   ============================================================ */

/* ---------- CSS 变量与主题系统 ---------- */
:root {
    --bg: #F8F4FF;
    --bg-gradient: radial-gradient(circle at 20% 0%, rgba(124, 58, 237, 0.06), transparent 50%),
                   radial-gradient(circle at 80% 10%, rgba(236, 72, 153, 0.06), transparent 50%);
    --text: #1F2937;
    --heading: #111827;
    --secondary: #4B5563;
    --accent: #7C3AED;
    --accent-light: #A78BFA;
    --accent-gradient: linear-gradient(135deg, #7C3AED, #EC4899);
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-bg-solid: #FFFFFF;
    --border: rgba(124, 58, 237, 0.12);
    --border-solid: #E5E7EB;
    --nav-bg: rgba(255, 255, 255, 0.85);
    --footer-bg: #1E1B4B;
    --footer-text: #F9FAFB;
    --btn-bg: linear-gradient(135deg, #7C3AED, #A855F7);
    --btn-text: #FFFFFF;
    --shadow-sm: 0 2px 8px rgba(124, 58, 237, 0.08);
    --shadow-md: 0 8px 30px rgba(124, 58, 237, 0.12);
    --shadow-lg: 0 20px 50px rgba(124, 58, 237, 0.18);
    --glass-blur: blur(16px);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body.dark {
    --bg: #0B0F1A;
    --bg-gradient: radial-gradient(circle at 20% 0%, rgba(124, 58, 237, 0.12), transparent 50%),
                   radial-gradient(circle at 80% 10%, rgba(236, 72, 153, 0.08), transparent 50%);
    --text: #E2E8F0;
    --heading: #F8FAFC;
    --secondary: #94A3B8;
    --accent: #A78BFA;
    --accent-light: #C4B5FD;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-bg-solid: #1E293B;
    --border: rgba(148, 163, 184, 0.15);
    --border-solid: #334155;
    --nav-bg: rgba(11, 15, 26, 0.85);
    --footer-bg: #020617;
    --footer-text: #E2E8F0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
}

/* ---------- 基础重置与全局样式 ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    background-image: var(--bg-gradient);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.5em;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-light);
}

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

ul, ol {
    list-style: none;
}

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

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

/* 通用可见性动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* 通用按钮 */
.btn {
    display: inline-block;
    background: var(--btn-bg);
    color: var(--btn-text);
    padding: 12px 32px;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--btn-text);
}

/* 区块标题 */
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin: 60px 0 30px;
    position: relative;
    display: inline-block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: 4px;
}

.subtitle {
    color: var(--secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* ---------- 头部导航 ---------- */
.site-header {
    background: var(--nav-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--heading);
    letter-spacing: -0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.logo span {
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 8px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 30px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--accent);
    background: rgba(124, 58, 237, 0.08);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-links a:hover::after {
    width: 60%;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg-solid);
    border-radius: 50px;
    padding: 6px 6px 6px 16px;
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.search-box input {
    border: none;
    background: transparent;
    color: var(--text);
    padding: 8px 4px;
    width: 160px;
    outline: none;
    font-size: 0.95rem;
}

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

.search-box button {
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 50px;
    padding: 8px 16px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.search-box button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

.dark-toggle {
    background: var(--card-bg-solid);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 50px;
    padding: 8px 16px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    font-size: 1rem;
}

.dark-toggle:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
}

/* ---------- 移动端导航 ---------- */
@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
        padding: 10px 0;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        background: var(--nav-bg);
        backdrop-filter: var(--glass-blur);
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 20px 24px;
        gap: 12px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
        animation: slideDown 0.3s ease;
    }

    .nav-links a {
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 1.1rem;
    }

    .nav-links a::after {
        display: none;
    }

    .menu-toggle {
        display: block;
        order: 3;
    }

    .search-box {
        order: 4;
        width: 100%;
        margin-top: 4px;
    }

    .search-box input {
        flex: 1;
        width: auto;
    }

    .dark-toggle {
        order: 2;
        margin-left: auto;
    }

    .logo {
        font-size: 1.5rem;
        order: 1;
    }
}

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

/* ---------- 面包屑 ---------- */
.breadcrumb {
    padding: 20px 0;
    color: var(--secondary);
    font-size: 0.95rem;
}

.breadcrumb a {
    color: var(--accent);
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ---------- Banner 主视觉 ---------- */
.banner {
    background: linear-gradient(135deg, #1E1B4B 0%, #4C1D95 50%, #7C3AED 100%);
    color: #FFFFFF;
    padding: 80px 0;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15), transparent 70%);
    border-radius: 50%;
    animation: float 12s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.banner .container {
    position: relative;
    z-index: 2;
}

.banner h1 {
    color: #FFFFFF;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.banner p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    max-width: 700px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    line-height: 1.8;
}

.banner .btn {
    background: #FFFFFF;
    color: #1E1B4B;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 700;
    display: inline-block;
    margin-top: 24px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.banner .btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ---------- 品牌介绍区 ---------- */
#brand {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin: 40px 0;
    box-shadow: var(--shadow-md);
}

#brand p {
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin: 40px 0;
}

.card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(124, 58, 237, 0.3);
}

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

.card h3 {
    margin-bottom: 16px;
    font-size: 1.3rem;
    position: relative;
}

.card p {
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 16px;
}

.card .more {
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}

.card .more:hover {
    gap: 12px;
}

/* ---------- 文章区 ---------- */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
    margin: 40px 0;
}

.article-item {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.article-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.article-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.article-item:hover::after {
    transform: scaleX(1);
}

.article-item time {
    color: var(--secondary);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.article-item h4 {
    margin: 12px 0 10px;
    font-size: 1.15rem;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-item:hover h4 {
    color: var(--accent);
}

.article-item p {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item a {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s ease;
}

.article-item a:hover {
    gap: 8px;
}

/* ---------- FAQ 手风琴 ---------- */
.faq-list details {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    margin-bottom: 12px;
    transition: var(--transition);
    cursor: pointer;
}

.faq-list details:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.faq-list details[open] {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
    background: var(--card-bg-solid);
}

.faq-list summary {
    font-weight: 600;
    color: var(--heading);
    cursor: pointer;
    font-size: 1.05rem;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color 0.3s ease;
}

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

.faq-list summary::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--accent);
    transition: transform 0.3s ease;
    margin-left: 12px;
}

.faq-list details[open] summary::after {
    transform: rotate(45deg);
}

.faq-list details p {
    color: var(--text);
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    line-height: 1.7;
}

/* ---------- 表格 ---------- */
.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.info-table th,
.info-table td {
    border: 1px solid var(--border);
    padding: 14px 18px;
    text-align: left;
    color: var(--text);
    font-size: 0.95rem;
}

.info-table th {
    background: var(--card-bg-solid);
    color: var(--heading);
    font-weight: 600;
    font-size: 1rem;
}

.info-table tr:hover td {
    background: rgba(124, 58, 237, 0.04);
}

/* ---------- 数据统计 ---------- */
.stat-number {
    font-size: 2.4rem;
    font-weight: 900;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 4px;
    display: inline-block;
}

/* ---------- HowTo 区块 ---------- */
#howto > div {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

#howto > div:hover {
    box-shadow: var(--shadow-md);
}

#howto h3 {
    font-size: 1.2rem;
    margin-bottom: 16px;
    color: var(--accent);
}

#howto p {
    margin-bottom: 12px;
    line-height: 1.8;
}

#howto p strong {
    color: var(--heading);
}

/* ---------- 页脚 ---------- */
.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 60px 0 24px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
}

.site-footer a {
    color: #BFDBFE;
    transition: color 0.3s ease;
}

.site-footer a:hover {
    color: #FFFFFF;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-grid h4 {
    color: #FFFFFF;
    margin-bottom: 20px;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 8px;
}

.footer-grid h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.footer-grid p,
.footer-grid li {
    color: var(--footer-text);
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer-grid li {
    margin-bottom: 8px;
}

.footer-grid li a {
    display: inline-block;
    transition: transform 0.3s ease;
}

.footer-grid li a:hover {
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.2);
    padding-top: 24px;
    text-align: center;
    color: #94A3B8;
    font-size: 0.9rem;
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--btn-bg);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    cursor: pointer;
    border: none;
    z-index: 999;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

.back-to-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ---------- 场景区块样式 ---------- */
#solutions p {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    margin-bottom: 16px;
    transition: var(--transition);
}

#solutions p:hover {
    border-color: var(--accent);
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

#solutions p strong {
    color: var(--accent);
}

/* 联系区 */
#contact > div {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

#contact p {
    margin-bottom: 12px;
    line-height: 1.8;
}

#contact p strong {
    color: var(--heading);
    margin-right: 8px;
}

/* ---------- SVG 占位符 ---------- */
.svg-placeholder {
    background: linear-gradient(135deg, #E0E7FF, #EDE9FE);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    margin: 16px 0;
    border: 1px dashed var(--border-solid);
}

.svg-placeholder svg {
    width: 100%;
    height: auto;
}

/* ---------- 工具类 ---------- */
.text-muted {
    color: var(--secondary);
}

.text-center {
    text-align: center;
}

.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-8 { margin-top: 3rem; }
.mb-8 { margin-bottom: 3rem; }

/* ---------- 响应式优化 ---------- */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

    .banner h1 {
        font-size: 2.4rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .container {
        padding: 0 16px;
    }

    .banner {
        padding: 60px 0;
    }

    .banner h1 {
        font-size: 2rem;
        line-height: 1.3;
    }

    .banner p {
        font-size: 1.05rem;
    }

    .section-title {
        font-size: 1.6rem;
        margin: 40px 0 24px;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 30px 0;
    }

    .article-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 30px 0;
    }

    #brand {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 1.2rem;
    }

    #howto > div {
        padding: 24px;
    }

    #contact > div {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .banner h1 {
        font-size: 1.6rem;
    }

    .banner p {
        font-size: 0.95rem;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.95rem;
    }

    .card {
        padding: 24px 20px;
    }

    .article-item {
        padding: 20px;
    }
}

/* ---------- 暗色模式微调 ---------- */
body.dark .card,
body.dark .article-item,
body.dark .faq-list details,
body.dark #brand,
body.dark #solutions p,
body.dark #contact > div,
body.dark #howto > div {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

body.dark .search-box {
    background: var(--card-bg-solid);
}

body.dark .nav-links a:hover {
    background: rgba(167, 139, 250, 0.1);
}

body.dark .banner {
    background: linear-gradient(135deg, #0B0F1A 0%, #1E1B4B 50%, #4C1D95 100%);
}

body.dark .banner h1 {
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* ---------- 打印样式 ---------- */
@media print {
    .site-header,
    .banner,
    .site-footer,
    .back-to-top,
    .search-box,
    .dark-toggle,
    .menu-toggle,
    .breadcrumb {
        display: none !important;
    }

    body {
        background: #FFFFFF;
        color: #000000;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .card,
    .article-item,
    .faq-list details {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #DDD;
    }
}

/* ---------- 无障碍与焦点样式 ---------- */
:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

::selection {
    background: rgba(124, 58, 237, 0.2);
    color: var(--heading);
}

/* ---------- 滚动条样式 ---------- */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #7C3AED, #A855F7);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #6D28D9, #9333EA);
}

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

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

/* 数字统计动画 */
.stat-number[data-target] {
    animation: countUp 2s ease-out forwards;
}

/* ---------- 首页加载动画 ---------- */
.banner .container > * {
    animation: fadeInUp 0.8s ease-out both;
}

.banner .container > *:nth-child(2) {
    animation-delay: 0.2s;
}

.banner .container > *:nth-child(3) {
    animation-delay: 0.4s;
}

/* ---------- 减少动效偏好 ---------- */
@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;
    }

    .scroll-animate {
        opacity: 1;
        transform: none;
    }
}

/* ---------- 结束 ---------- */