```css
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f4f8fb;
    --bg-card: rgba(255, 255, 255, 0.65);
    --bg-footer: #0b1f2f;
    --text-primary: #1f2937;
    --text-secondary: #2c3e50;
    --text-title: #0f172a;
    --text-link: #0b57a4;
    --text-link-hover: #084a8f;
    --text-btn: #ffffff;
    --text-footer: #d1d9e6;
    --text-footer-link: #b0c4de;
    --text-faq-q: #1e293b;
    --text-faq-a: #2d3f53;
    --border-light: rgba(203, 213, 225, 0.5);
    --brand-main: #f5a623;
    --brand-dark: #c47d0a;
    --overlay-dark: rgba(0, 0, 0, 0.55);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.06);
    --nav-bg: rgba(255, 255, 255, 0.72);
    --nav-text: #1f2937;
    --nav-border: rgba(226, 232, 240, 0.5);
    --blur: blur(18px);
    --gradient-hero: linear-gradient(135deg, #0b1f2f 0%, #1a3a4f 50%, #2c5a72 100%);
    --gradient-card: linear-gradient(145deg, rgba(245, 166, 35, 0.08), rgba(255, 255, 255, 0.02));
    --accent-glow: rgba(245, 166, 35, 0.12);
    --transition-smooth: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html[data-theme="dark"] {
    --bg-primary: #0f1722;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-footer: #0b151f;
    --text-primary: #e5e7eb;
    --text-secondary: #cbd5e1;
    --text-title: #ffffff;
    --text-link: #a5c8ff;
    --text-link-hover: #c2dbff;
    --text-btn: #0b1f2f;
    --text-footer: #d3deed;
    --text-footer-link: #aebfd9;
    --text-faq-q: #f1f5f9;
    --text-faq-a: #e2e8f0;
    --border-light: rgba(71, 85, 105, 0.5);
    --brand-main: #f5a623;
    --brand-dark: #f5b843;
    --overlay-dark: rgba(0, 0, 0, 0.6);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
    --nav-bg: rgba(15, 23, 34, 0.72);
    --nav-text: #f1f5f9;
    --nav-border: rgba(51, 65, 85, 0.5);
    --gradient-hero: linear-gradient(135deg, #0a1019 0%, #152233 50%, #1e3a5c 100%);
    --gradient-card: linear-gradient(145deg, rgba(245, 166, 35, 0.06), rgba(255, 255, 255, 0.01));
    --accent-glow: rgba(245, 166, 35, 0.15);
}

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

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

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    transition: background 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-title);
    font-weight: 800;
    line-height: 1.25;
    transition: color 0.3s;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-top: 2.5rem; position: relative; display: inline-block; }
h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 50%;
    height: 4px;
    background: var(--brand-main);
    border-radius: 4px;
    opacity: 0.7;
}
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); margin-top: 1.8rem; }
h4 { font-size: 1.1rem; margin-top: 1.2rem; }

p {
    color: var(--text-primary);
    font-size: 1rem;
    margin: 1rem 0;
    line-height: 1.8;
}

a {
    color: var(--text-link);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.25s ease, text-decoration 0.25s ease;
    position: relative;
}

a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
    text-underline-offset: 4px;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* 导航栏 */
.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    transition: background 0.4s, box-shadow 0.3s;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    padding: 0 16px;
}

.logo {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--text-title);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--gradient-card);
    padding: 6px 16px;
    border-radius: 40px;
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.logo span {
    color: var(--brand-dark);
    background: linear-gradient(135deg, var(--brand-main), var(--brand-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    font-weight: 600;
    color: var(--nav-text);
    position: relative;
    padding: 8px 4px;
    transition: color 0.3s;
}

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

.nav-links a:hover {
    color: var(--brand-main);
    text-decoration: none;
}

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

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    border-radius: 50px;
    padding: 6px 10px;
    border: 1px solid var(--border-light);
    transition: box-shadow 0.3s, border-color 0.3s;
}

.search-box:focus-within {
    box-shadow: 0 0 0 3px var(--accent-glow);
    border-color: var(--brand-main);
}

.search-box input {
    border: none;
    background: transparent;
    padding: 8px 12px;
    color: var(--text-primary);
    width: 160px;
    outline: none;
    font-size: 0.95rem;
    transition: width 0.3s;
}

.search-box input:focus {
    width: 200px;
}

.search-box input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.icon-btn:hover {
    transform: scale(1.15);
}

.theme-toggle {
    background: var(--bg-secondary);
    border-radius: 40px;
    padding: 8px 14px;
    border: 1px solid var(--border-light);
    transition: background 0.3s, transform 0.3s;
}

.theme-toggle:hover {
    transform: rotate(15deg);
    background: var(--accent-glow);
}

.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s;
}

.burger:hover {
    background: var(--bg-secondary);
}

.burger div {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    border-radius: 4px;
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    background: var(--nav-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    padding: 12px 24px;
    border-top: 1px solid var(--border-light);
    animation: slideDown 0.3s ease;
}

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

.mobile-menu a {
    display: block;
    padding: 12px 0;
    font-weight: 600;
    color: var(--nav-text);
    border-bottom: 1px solid var(--border-light);
    transition: padding-left 0.3s, color 0.3s;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu a:hover {
    padding-left: 12px;
    color: var(--brand-main);
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav-links, .search-box, .theme-toggle {
        display: none;
    }
    .burger {
        display: flex;
    }
    .mobile-menu.open {
        display: block;
    }
    .nav-wrapper {
        padding: 0 12px;
    }
    .logo {
        font-size: 1.3rem;
        padding: 4px 12px;
    }
}

/* 按钮 */
.btn-primary {
    background: linear-gradient(135deg, var(--brand-main), var(--brand-dark));
    color: #0b1f2f;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(245, 166, 35, 0.3);
    display: inline-block;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(245, 166, 35, 0.45);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--brand-main);
    color: var(--brand-main);
    padding: 10px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline:hover {
    background: var(--brand-main);
    color: #0b1f2f;
    border-color: var(--brand-main);
    transform: translateY(-2px);
}

/* hero banner */
.hero {
    background: var(--gradient-hero);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.15) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

.hero-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1 1 350px;
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-text h1 {
    color: white;
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-text p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    margin: 20px 0;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero-svg {
    flex: 1 1 280px;
    text-align: center;
    animation: float 4s ease-in-out infinite;
}

.hero-svg svg {
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

/* 卡片 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin: 30px 0;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

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

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

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

.card h3 {
    color: var(--text-title);
    margin-bottom: 12px;
    font-size: 1.3rem;
}

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

/* 文章卡片 */
.article-list .article-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
    padding-left: 16px;
}

.article-item:hover {
    padding-left: 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.article-item h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.article-item .meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 8px;
}

.article-item p {
    margin: 8px 0;
}

.article-item a {
    font-weight: 600;
    color: var(--brand-main);
    display: inline-block;
    margin-top: 8px;
}

/* FAQ 样式 */
.faq-section details {
    background: var(--bg-card);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-light);
    padding: 18px 24px;
    border-radius: 16px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.faq-section details:hover {
    border-color: var(--brand-main);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.faq-section details[open] {
    background: var(--bg-secondary);
    border-color: var(--brand-main);
}

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

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

.faq-section summary::after {
    content: '＋';
    font-size: 1.4rem;
    color: var(--brand-main);
    transition: transform 0.3s;
}

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

.faq-section details p {
    color: var(--text-faq-a);
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

/* 表格 */
.info-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.info-table th, .info-table td {
    border: 1px solid var(--border-light);
    padding: 14px 20px;
    text-align: left;
    color: var(--text-primary);
}

.info-table th {
    background: var(--bg-secondary);
    color: var(--text-title);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.info-table tr:hover {
    background: var(--bg-secondary);
}

/* footer */
.footer {
    background: linear-gradient(180deg, var(--bg-footer), #0a1a2a);
    color: var(--text-footer);
    padding: 50px 0 20px;
    margin-top: 50px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-main), var(--brand-dark), var(--brand-main));
}

.footer a {
    color: var(--text-footer-link);
    transition: color 0.3s;
}

.footer a:hover {
    color: var(--brand-main);
    text-decoration: none;
}

.footer .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
}

.footer h4 {
    color: #ffffff;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.footer p, .footer address {
    color: var(--text-footer);
    font-style: normal;
    line-height: 1.9;
    font-size: 0.95rem;
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
    padding-top: 24px;
    text-align: center;
    color: var(--text-footer);
    font-size: 0.9rem;
}

.copyright p {
    margin: 6px 0;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--brand-main), var(--brand-dark));
    color: #0b1f2f;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    opacity: 0.9;
    border: none;
    z-index: 1000;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 12px 40px rgba(245, 166, 35, 0.4);
}

/* 滚动动画 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 图片占位 */
.svg-placeholder {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    color: var(--text-primary);
    border: 1px dashed var(--border-light);
    transition: all 0.3s;
}

.svg-placeholder:hover {
    border-color: var(--brand-main);
}

/* 其他 */
.badge {
    background: linear-gradient(135deg, var(--brand-main), var(--brand-dark));
    color: #0b1f2f;
    padding: 4px 14px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-block;
    box-shadow: 0 2px 8px rgba(245, 166, 35, 0.3);
}

hr {
    border: none;
    border-top: 1px solid var(--border-light);
    margin: 30px 0;
    opacity: 0.5;
}

.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 700px) {
    .grid-2col { grid-template-columns: 1fr; gap: 20px; }
    .container { padding: 0 16px; }
    .hero { padding: 40px 0; }
    .hero-text h1 { font-size: 1.8rem; }
    .hero-text p { font-size: 1rem; }
}

.text-secondary {
    color: var(--text-secondary);
}

/* 面包屑 */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.breadcrumb span {
    color: var(--text-secondary);
}

/* 列表和有序列表 */
ol {
    color: var(--text-primary);
    margin-left: 24px;
    line-height: 2;
}

ol li {
    padding: 6px 0;
    position: relative;
}

ol li::marker {
    color: var(--brand-main);
    font-weight: 700;
}

/* 联系区 */
address {
    font-style: normal;
    line-height: 1.9;
    color: var(--text-secondary);
}

/* 友情链接 */
section[style*="font-size"] {
    font-size: 0.95rem !important;
}

section[style*="font-size"] a {
    margin: 0 8px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.3s;
}

section[style*="font-size"] a:hover {
    background: var(--bg-secondary);
    text-decoration: none;
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--brand-main), var(--brand-dark));
    border-radius: 10px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--brand-dark);
}

/* 选中文字 */
::selection {
    background: var(--brand-main);
    color: #0b1f2f;
}

/* 焦点可见性 */
:focus-visible {
    outline: 3px solid var(--brand-main);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 减少动画偏好 */
@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;
    }
}

/* 移动端优化 */
@media (max-width: 480px) {
    .btn-primary, .btn-outline {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .hero-svg {
        display: none;
    }
    
    .logo {
        font-size: 1.2rem;
    }
}

/* 打印样式 */
@media print {
    .sticky-nav, .back-to-top, .mobile-menu, .burger {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}

/* 动画增强 */
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(245, 166, 35, 0.3); }
    50% { box-shadow: 0 0 40px rgba(245, 166, 35, 0.6); }
}

.hero .btn-primary {
    animation: pulseGlow 2s ease-in-out infinite;
}

/* 卡片网格特殊效果 */
.card-grid .card:nth-child(odd) {
    animation: fadeIn 0.6s ease forwards;
}

.card-grid .card:nth-child(even) {
    animation: fadeIn 0.6s ease 0.2s forwards;
}

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

/* 区块间距优化 */
main > section {
    padding: 20px 0;
}

section {
    scroll-margin-top: 80px;
}

/* FAQ 特殊处理 */
.faq-section details {
    animation: slideIn 0.5s ease forwards;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* 移动端导航优化 */
@media (max-width: 768px) {
    .nav-links a {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    
    .article-item h4 {
        font-size: 1rem;
    }
    
    .article-item .meta {
        font-size: 0.8rem;
    }
    
    .faq-section summary {
        font-size: 0.95rem;
    }
    
    .faq-section details {
        padding: 14px 16px;
    }
}

/* 超小屏适配 */
@media (max-width: 360px) {
    .container {
        padding: 0 12px;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 1.2rem; }
    
    .btn-primary, .btn-outline {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}

/* 链接和按钮的触摸反馈 */
@media (hover: none) {
    .btn-primary, .btn-outline, .back-to-top {
        -webkit-tap-highlight-color: transparent;
    }
    
    .btn-primary:active, .btn-outline:active {
        transform: scale(0.95);
    }
}

/* 背景纹理增强 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(at 20% 20%, var(--accent-glow) 0%, transparent 50%),
        radial-gradient(at 80% 80%, var(--accent-glow) 0%, transparent 50%);
    z-index: -1;
    opacity: 0.5;
    pointer-events: none;
}

/* 卡片玻璃效果增强 */
@media (min-width: 768px) {
    .card {
        background: var(--bg-card);
        backdrop-filter: blur(16px) saturate(180%);
        -webkit-backdrop-filter: blur(16px) saturate(180%);
    }
}

/* 保持内容可读性 */
.text-secondary {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 企业信息显示优化 */
address, p {
    word-break: break-word;
}

/* 版权区域 */
.copyright p {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* 链接下划线动画 */
.nav-links a::after, .footer a::after {
    content: none;
}

.footer a {
    position: relative;
}

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

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