/* ====== 蓝白色系二次元风格（无粉色、无漂浮星星） ====== */

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

:root {
    --bg-color: #f0f8ff;
    --text-primary: #2c3e50;
    --text-secondary: #5d7b9f;
    --border-color: #c9e0f0;
    --accent-color: #5aa9e6;
    --accent-light: #c8e2ff;
    --card-bg: rgba(255, 255, 255, 0.85);
    --font-sans: 'M PLUS Rounded 1c', 'Quicksand', 'Poppins', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-size: 16px;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 30% 40%, rgba(90, 169, 230, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 70% 80%, rgba(90, 169, 230, 0.08) 0%, transparent 25%),
        url('data:image/svg+xml;utf8,<svg width="30" height="30" viewBox="0 0 30 30" xmlns="http://www.w3.org/2000/svg"><circle cx="15" cy="15" r="1.5" fill="%235aa9e6" opacity="0.2"/></svg>');
    background-repeat: repeat;
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10" fill="%235aa9e6" opacity="0.5"/></svg>') 12 12, auto;
}

.container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 0;
}

/* 导航栏 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 3rem;
    background: var(--card-bg);
    backdrop-filter: blur(5px);
    border-radius: 50px;
    padding-left: 2rem;
    padding-right: 2rem;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    background: linear-gradient(145deg, var(--accent-color), #3b8fd9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.2s;
    padding: 0.3rem 0.8rem;
    border-radius: 30px;
}

.nav-links a i {
    margin-right: 0.3rem;
    color: var(--accent-color);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--accent-light);
}

/* 页脚 */
.footer {
    margin-top: 5rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* 主页特有样式 */
.hero {
    margin-bottom: 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero .focus {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1rem;
    justify-content: center;
    list-style: none;
    margin: 2rem 0 3rem;
}

.badge-list li {
    background: var(--accent-light);
    color: var(--accent-color);
    padding: 0.3rem 1.2rem;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 3rem 0;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(5px);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 1.8rem 1.2rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(90, 169, 230, 0.1),
                inset 0 1px 3px rgba(255, 255, 255, 0.8);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px -8px rgba(90, 169, 230, 0.5);
    border-color: var(--accent-color);
}

.card i {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 状态卡片组（三卡片） */
.status-cards {
    display: flex;
    gap: 1.5rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.status-card {
    flex: 1 1 200px;
    background: var(--card-bg);
    backdrop-filter: blur(5px);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 15px rgba(90, 169, 230, 0.1);
    transition: transform 0.2s, border-color 0.2s;
    min-width: 200px;
}

.status-card:hover {
    transform: scale(1.02);
    border-color: var(--accent-color);
}

.status-card i {
    font-size: 2.2rem;
    color: var(--accent-color);
    animation: rotate-slow 6s infinite linear;
}

@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.status-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
    font-weight: 600;
}

.status-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0.1rem 0;
    line-height: 1.4;
}

.status-note {
    font-size: 0.8rem;
    color: var(--accent-color);
    margin-top: 0.3rem;
    font-style: italic;
}

/* 时间线 */
.timeline {
    list-style: none;
    margin: 2rem 0;
}

.timeline li {
    display: flex;
    padding: 1rem 0;
    border-bottom: 1px dashed var(--border-color);
}

.timeline-date {
    min-width: 100px;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
}

.timeline-content {
    color: var(--text-primary);
}

/* 页面标题 */
.page-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-title {
    font-size: 1.8rem;
    margin: 2.5rem 0 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    color: var(--text-primary);
}

/* 联系页面列表 */
.contact-list {
    list-style: none;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    overflow: hidden;
    margin: 2rem 0;
    background: var(--card-bg);
}

.contact-list li {
    display: flex;
    align-items: center;
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
}

.contact-list li:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 40px;
    font-size: 1.3rem;
    color: var(--accent-color);
}

.contact-detail a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-thickness: 1px;
    text-decoration-color: var(--border-color);
}

.contact-detail a:hover {
    text-decoration-color: var(--accent-color);
}

/* 表单 */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    color: var(--text-primary);
}

input, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-family: inherit;
    font-size: 1rem;
    background: var(--card-bg);
    transition: border 0.2s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: #fff;
}

button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 40px;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 10px rgba(90, 169, 230, 0.3);
}

button:hover {
    background: #3b8fd9;
    box-shadow: 0 6px 15px rgba(90, 169, 230, 0.4);
}

.note {
    margin-top: 0.8rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 二次元装饰 */
.mascot {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 2.2rem;
    color: var(--accent-color);
    z-index: 100;
    animation: float 3s infinite ease-in-out;
    pointer-events: none;
    opacity: 0.7;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.cat-icon {
    position: fixed;
    bottom: 20px;
    left: 20px;
    font-size: 2rem;
    color: var(--accent-color);
    opacity: 0.3;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 100;
    pointer-events: none;
}

.cat-icon:hover {
    opacity: 0.8;
    transform: rotate(5deg) scale(1.1);
}

/* 响应式 */
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        border-radius: 30px;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .timeline li {
        flex-direction: column;
    }
    .timeline-date {
        margin-bottom: 0.3rem;
    }
    .footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .footer-links {
        justify-content: center;
    }
}
/* ====== 汉堡菜单样式 ====== */
.menu-toggle {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1100;
    width: 44px;
    height: 44px;
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: 0.2s;
    font-size: 1.6rem;
    color: var(--accent-color);
}
.menu-toggle:hover {
    background: var(--accent-light);
    transform: scale(1.05);
}

.menu-panel {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    height: 100%;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    z-index: 1200;
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    box-shadow: 2px 0 12px rgba(0,0,0,0.1);
}
.menu-panel.active {
    left: 0;
}
.menu-close {
    align-self: flex-end;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}
.menu-close:hover {
    color: var(--accent-color);
}
.menu-links {
    list-style: none;
    margin-top: 1rem;
}
.menu-links li {
    margin-bottom: 1.5rem;
}
.menu-links a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
    display: block;
    padding: 0.3rem 0;
}
.menu-links a:hover,
.menu-links a.active {
    color: var(--accent-color);
}
.menu-footer {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.menu-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.menu-footer a:hover {
    color: var(--accent-color);
}
.menu-footer i {
    width: 24px;
    margin-right: 8px;
}
/* 汉堡菜单样式 */
.menu-toggle {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1100;
    width: 44px;
    height: 44px;
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: 0.2s;
    font-size: 1.6rem;
    color: var(--accent-color);
}
.menu-toggle:hover {
    background: var(--accent-light);
    transform: scale(1.05);
}
.menu-panel {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    height: 100%;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    z-index: 1200;
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    box-shadow: 2px 0 12px rgba(0,0,0,0.1);
}
.menu-panel.active { left: 0; }
.menu-close {
    align-self: flex-end;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}
.menu-close:hover { color: var(--accent-color); }
.menu-links { list-style: none; margin-top: 1rem; }
.menu-links li { margin-bottom: 1.5rem; }
.menu-links a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
    display: block;
    padding: 0.3rem 0;
}
.menu-links a:hover,
.menu-links a.active { color: var(--accent-color); }
.menu-footer {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.menu-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}
.menu-footer a:hover { color: var(--accent-color); }
.menu-footer i { width: 24px; margin-right: 8px; }
/* ====== 增加微动效 ====== */
body {
    background-attachment: fixed;
    transition: background 0.3s ease;
}

/* 卡片悬浮增强 */
.card:hover,
.status-card:hover {
    transform: translateY(-8px);
    transition: transform 0.2s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

/* 按钮悬停光效 */
button:hover {
    box-shadow: 0 8px 20px rgba(90, 169, 230, 0.4);
    transform: scale(1.02);
}

/* 链接悬浮微移 */
.nav-links a:hover,
.menu-links a:hover,
.footer-links a:hover {
    transform: translateX(2px);
}

/* 极简背景流动（不影响文字阅读） */
@keyframes softFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(90,169,230,0.03) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(90,169,230,0.03) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
    animation: softFlow 20s infinite alternate;
}