/* =================================================================
   CONSOLIDATED STYLES - 消除重复和冲突的统一样式文件
   ================================================================= */

/* 全局变量定义 - 统一管理 */
:root {
    --primary-color: #ffffff;
    --secondary-color: #000000;
    --accent-color: #7f8c8d;
    --accent-color-rgb: 127, 140, 141;
    --text-color: #ecf0f1;
    --card-bg: rgba(44, 62, 80, 0.6);
    --light-bg: linear-gradient(135deg, #2c3e50, #1c1c1c);
    --dark-bg: linear-gradient(135deg, #000000, #434343);
    --hover-shadow: 0 8px 25px rgba(0,0,0,0.5);
    --card-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* 全局重置和基础样式 */
html {
    font-size: 16px; /* 设置根字体大小，1rem = 16px */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 统一的body样式 */
body {
    color: var(--text-color);
    background: var(--dark-bg);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    font-size: 16px; /* 设置基础字体大小 */
}

/* 首页特殊布局 */
body.index-page {
    min-height: 100vh;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* 星空背景 */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: 
        radial-gradient(1.5px 1.5px at 20% 30%, white, transparent),
        radial-gradient(1.5px 1.5px at 40% 70%, white, transparent),
        radial-gradient(1.5px 1.5px at 70% 20%, white, transparent),
        radial-gradient(2px 2px at 85% 85%, white, transparent),
        radial-gradient(2px 2px at 10% 90%, white, transparent),
        radial-gradient(2px 2px at 50% 50%, white, transparent),
        radial-gradient(2.5px 2.5px at 90% 10%, white, transparent),
        radial-gradient(2.5px 2.5px at 30% 10%, white, transparent),
        radial-gradient(3px 3px at 60% 60%, white, transparent),
        radial-gradient(3px 3px at 80% 40%, white, transparent);
    background-repeat: repeat;
    background-size: 300px 300px, 300px 300px, 300px 300px, 300px 300px, 
                     300px 300px, 300px 300px, 300px 300px, 
                     600px 600px, 600px 600px, 600px 600px;
    animation: twinkle 10s linear infinite, move-background 60s linear infinite;
    opacity: 0.5;
}

@keyframes twinkle {
    0%   { opacity: 0.2; }
    50%  { opacity: 1.0; }
    100% { opacity: 0.2; }
}

@keyframes move-background {
    from { background-position: 0 0; }
    to   { background-position: 300px 300px; }
}



/* 统一的容器样式 */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 基础标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2rem;
    position: relative;
    font-weight: 600;
}

.section-title::after {
    content: "";
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 15px auto;
}

/* 首页主内容样式 */
.main-content {
    text-align: center;
    max-width: 800px;
    padding: 40px 20px;
    position: relative;
}

/* 统一的头部样式 */
header {
    background: transparent;
    color: var(--primary-color);
    padding: 70px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: fadeInHeader 1s ease-out;
}

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

/* 统一的logo样式 */
.logo {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: 2px;
    text-decoration: none;
    color: var(--primary-color);
}

/* 首页logo特殊样式 */
.logo.index-logo {
    margin-bottom: 40px;
    margin-top: 20px;
    font-size: 3.5rem;
    text-align: center;
    color: #ffffff;
    font-weight: 300;
    letter-spacing: 3px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

/* 统一的tagline样式 */
.tagline {
    font-size: 1.3rem;
    margin-bottom: 60px;
    opacity: 0.9;
    line-height: 1.6;
}

/* 统一的导航样式 */
.nav {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px 15px;
    display: flex;
    gap: 15px;
    z-index: 1000;
    align-items: center;
}

.nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease, transform 0.3s ease;
    padding: 5px 0;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    display: block;
    margin-top: 2px;
    right: 0;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
    left: 0;
    background-color: var(--accent-color);
}

.nav a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.nav a.current {
    color: var(--accent-color);
    font-weight: bold;
}

/* 统一的语言切换样式 */
.lang-switch {
    display: flex;
    gap: 5px;
    margin-left: 15px;
    border-left: 1px solid rgba(var(--accent-color-rgb), 0.3);
    padding-left: 15px;
}

/* 首页语言切换特殊定位 */
.lang-switch.index-lang-switch {
    position: fixed;
    top: 30px;
    right: 30px;
    margin-left: 0;
    border-left: none;
    padding: 12px 18px;
    z-index: 1000;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
}

.lang-switch a {
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 15px;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    border: 1px solid transparent;
    background-color: transparent;
}

.lang-switch a::after {
    display: none;
}

.lang-switch a:hover {
    background-color: rgba(var(--accent-color-rgb), 0.2);
    color: var(--accent-color);
    border-color: rgba(var(--accent-color-rgb), 0.4);
    transform: none;
}

.lang-switch a.active-lang {
    font-weight: bold;
    background-color: rgba(var(--accent-color-rgb), 0.3);
    color: var(--primary-color);
    border-color: rgba(var(--accent-color-rgb), 0.5);
}

/* 统一的按钮样式 */
.btn {
    display: inline-block;
    color: var(--primary-color);
    padding: 10px 25px;
    margin: 0 10px;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
    border: 1px solid rgba(var(--accent-color-rgb), 0.5);
    border-radius: 25px;
    cursor: pointer;
    background-color: rgba(var(--accent-color-rgb), 0.2);
    font-size: 1.1rem;
    will-change: transform, background-color;
}

.btn:hover {
    color: var(--secondary-color);
    background-color: rgba(var(--accent-color-rgb), 0.7);
    border-color: rgba(var(--accent-color-rgb), 0.9);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* 统一的工具提示样式 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.8rem;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* 统一的社交链接样式 */
.social-links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 40px;
    height: 40px;
    padding: 0 15px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    will-change: transform, background-color;
}

.social-links a:hover {
    background-color: rgba(var(--accent-color-rgb), 0.7);
    color: var(--secondary-color);
    border-color: rgba(var(--accent-color-rgb), 0.9);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* 统一的页脚样式 */
footer {
    background-color: transparent;
    color: rgba(255, 255, 255, 0.8);
    padding: 40px 0;
    text-align: center;
    margin-top: 80px;
    font-size: 0.9rem;
}

.contact-info p {
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.8);
}

/* 动画类 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}

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

.staggered-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    transition-delay: calc(var(--item-index) * 0.05s);
    will-change: opacity, transform;
}

.staggered-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 语言切换规则 */
html[lang="zh-CN"] [lang="en"],
html[lang="en"] [lang="zh-CN"] {
    display: none;
}

html[lang="zh-CN"] [lang="zh-CN"],
html[lang="en"] [lang="en"] {
    display: inline;
}

/* 流星效果 */
.meteor {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color), 0 0 30px var(--accent-color);
}

.trail {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color), 0 0 30px var(--accent-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav {
        position: static;
        margin-top: 20px;
        justify-content: center;
        padding: 10px 0;
        gap: 10px;
    }
    
    .nav a {
        font-size: 0.8rem;
    }
    
    .lang-switch {
        margin-left: 0;
        border-left: none;
        padding-left: 0;
    }
    
    .lang-switch.index-lang-switch {
        position: fixed;
        top: 15px;
        right: 15px;
        margin-top: 0;
        padding: 8px 12px;
        font-size: 0.8rem;
        background: rgba(255,255,255,0.15);
        border-radius: 15px;
    }
    
    header {
        padding: 50px 0;
    }
    
    footer {
        padding: 30px 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .main-content {
        padding: 20px 15px;
    }
    
    .tagline {
        font-size: 1.1rem;
        margin-bottom: 40px;
    }
    
    .logo.index-logo {
        margin-bottom: 25px;
        font-size: 2.5rem;
        text-align: center;
    }
}

/* ========== 开发者社区页面样式 ========== */

/* 社区页面主页样式 */
.community-page #hero {
    padding: 100px 0 80px;
    text-align: center;
}

.community-page #hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.community-page .hero-subtitle {
    font-size: 1.3rem;
    color: rgba(236, 240, 241, 0.9);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 对称网格布局样式 */
.symmetric-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.community-card {
    background: linear-gradient(135deg, rgba(52, 73, 94, 0.8), rgba(44, 62, 80, 0.6));
    padding: 35px 25px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(var(--accent-color-rgb), 0.2);
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.community-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    transition: left 0.6s ease;
}

.community-card:hover::before {
    left: 100%;
}

.community-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border-color: var(--accent-color);
    background: linear-gradient(135deg, rgba(52, 73, 94, 0.9), rgba(44, 62, 80, 0.7));
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.community-card:hover .card-icon {
    transform: scale(1.2) rotate(5deg);
}

.community-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

.community-card p {
    color: rgba(236, 240, 241, 0.9);
    margin-bottom: 25px;
    line-height: 1.6;
    flex-grow: 1;
}

.card-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--accent-color), rgba(127, 140, 141, 0.8));
    color: var(--primary-color);
    padding: 12px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(var(--accent-color-rgb), 0.5);
    font-size: 0.9rem;
}

.card-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(127, 140, 141, 0.4);
    background: linear-gradient(45deg, rgba(127, 140, 141, 0.9), var(--accent-color));
}

/* 亮点统计区域样式 */
.highlights-row {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.highlight-item {
    text-align: center;
    min-width: 120px;
}

.highlight-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.highlight-item:hover .highlight-number {
    transform: scale(1.1);
    color: var(--primary-color);
}

.highlight-label {
    font-size: 1rem;
    color: rgba(236, 240, 241, 0.9);
    font-weight: 500;
}

/* 社区页面响应式调整 */
@media (max-width: 992px) {
    .symmetric-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .highlights-row {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .community-page #hero h1 {
        font-size: 2.5rem;
    }
    
    .community-page .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .symmetric-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .community-card {
        padding: 30px 20px;
        min-height: 240px;
    }
    
    .highlights-row {
        gap: 30px;
    }
    
    .highlight-number {
        font-size: 2.5rem;
    }
}

/* ========== 合作页面样式 ========== */

/* 合作页面特定的标题和文本样式 */
.partners-page h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--primary-color);
    font-weight: 600;
}

.partners-page h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 500;
}

.partners-page p {
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(236, 240, 241, 0.9);
    margin-bottom: 15px;
}

.partners-page ul {
    margin-bottom: 15px;
}

.partners-page li {
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(236, 240, 241, 0.9);
    margin-bottom: 8px;
}

/* ========== 团队页面样式 ========== */

/* 团队页面颜色覆盖 */
.team-page {
    --accent-color: #5fa8d3;
    --accent-color-rgb: 95, 168, 211;
    --light-bg: #1e1e1e;
    --card-bg: rgba(255, 255, 255, 0.05);
    --hover-bg: rgba(var(--accent-color-rgb), 0.2);
    --link-color: var(--accent-color);
    --link-hover-color: #8ac6e0;
    --border-color: rgba(var(--accent-color-rgb), 0.3);
    --shadow-color: rgba(0, 0, 0, 0.5);
}

/* 团队网格布局 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    padding: 60px 0;
    margin-top: 40px;
}

/* 团队成员卡片 */
.team-member {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 20px var(--shadow-color);
    text-align: center;
    padding: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(var(--accent-color-rgb), 0.3);
}

/* 成员头像 */
.member-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 20px auto;
    overflow: hidden;
    border: 3px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
}

.member-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 成员信息 */
.member-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.member-role {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 20px;
    font-size: 1rem;
}

.member-details-link {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--accent-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 20px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    font-weight: 500;
}

.member-details-link:hover {
    background-color: var(--link-hover-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

/* 摩天轮容器 */
#ferris-wheel-container {
    position: relative;
    height: 65vh;
    min-height: 450px;
    width: 100%;
    max-width: 950px;
    margin: 30px auto 80px auto;
    padding: 0;
    perspective: 1400px;
}

/* 摩天轮中的成员卡片 */
#ferris-wheel-container .team-member {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 80%;
    max-width: 850px;
    margin: 0;
    display: flex !important;
    align-items: center;
    padding: 0;
    border-radius: 20px;
    transition: opacity 0.5s ease-out, z-index 0.5s;
    opacity: 0;
    will-change: transform, opacity;
    transform-origin: center center;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 8px 20px var(--shadow-color);
}

#ferris-wheel-container .member-content-wrapper {
    display: flex;
    align-items: center;
    padding: 15px 15px 15px 25px;
    width: 100%;
    height: 100%;
    transition: background-color 0.3s ease;
    transform-origin: center center;
    background-color: transparent;
    border-radius: 20px;
}

#ferris-wheel-container .member-img {
    height: 80px;
    width: 80px;
    flex-shrink: 0;
    margin-bottom: 0;
    margin-right: 30px;
    background-color: var(--light-bg);
}

#ferris-wheel-container .member-details,
#ferris-wheel-container .member-info {
    flex: 1;
    text-align: left;
}

#ferris-wheel-container .member-name {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

#ferris-wheel-container .member-role {
    font-size: 1rem;
    margin-bottom: 10px;
}

#ferris-wheel-container .member-bio {
    font-size: 0.9rem;
    line-height: 1.4;
    opacity: 0.8;
}

/* 圆点指示器 */
.dot-indicator {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(var(--accent-color-rgb), 0.4);
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: var(--accent-color);
}

/* 团队页面响应式设计 */
@media (max-width: 768px) {
    .team-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .member-img {
        width: 120px;
        height: 120px;
    }
    
    #ferris-wheel-container {
        height: 50vh;
        min-height: 350px;
    }
    
    #ferris-wheel-container .team-member {
        width: 95%;
        max-width: none;
    }
    
    #ferris-wheel-container .member-content-wrapper {
        padding: 10px;
    }
    
    #ferris-wheel-container .member-img {
        height: 60px;
        width: 60px;
        margin-right: 15px;
    }
    
    #ferris-wheel-container .member-name {
        font-size: 1.2rem;
    }
    
    #ferris-wheel-container .member-role {
        font-size: 0.9rem;
    }
    
    #ferris-wheel-container .member-bio {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .member-img {
        width: 100px;
        height: 100px;
    }
    
    .member-name {
        font-size: 1.1rem;
    }
    
    .member-role {
        font-size: 0.9rem;
    }
    
    .member-details-link {
        padding: 8px 20px;
    }
}

/* 关于页面样式 */
.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    margin: 40px 0;
}

.about-text {
    flex: 1;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 20px;
}

.about-image {
    flex: 1;
    background-color: #444;
    height: 400px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.about-image svg {
    width: 150px;
    height: 150px;
    fill: #ccc;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

/* 特色按钮样式 */
.featured-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    border: 2px solid transparent;
    background-clip: padding-box;
}

.featured-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    transition: all 0.5s ease;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.featured-btn:hover::before {
    width: 300px;
    height: 300px;
}

.featured-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* 技术特色区域 */
.tech-section {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    margin: 40px 0;
}

.tech-section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--primary-color);
}

.vision-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

.vision-text strong {
    display: block;
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.vision-text p {
    margin-bottom: 15px;
}

/* 特色功能网格 */
.features {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    margin: 40px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--accent-color);
    transition: transform 0.3s ease;
}

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

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-color);
    line-height: 1.6;
}

/* 悬浮效果卡片 */
.hover-effect-card {
    background-color: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-effect-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.hover-effect-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--accent-color);
    transition: transform 0.3s ease;
}

.hover-effect-card:hover .hover-effect-icon {
    transform: scale(1.1);
}

/* 关于页面移动端响应式 */
@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .about-text {
        font-size: 1rem;
    }
    
    .about-image {
        height: 300px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tech-section {
        padding: 40px 0;
    }
    
    .vision-text {
        font-size: 1rem;
    }
}