/* ========================================
   威菲格斯数字建站有限公司 - 全局样式
   儿童可爱风 | 浅黄 + 浅粉 + 浅绿
   ======================================== */

:root {
    --color-primary: #FFF9E6;      /* 浅黄背景 */
    --color-secondary: #FFE6F2;    /* 浅粉点缀 */
    --color-accent: #E6FFF0;       /* 浅绿强调 */
    --color-text: #5A4A42;         /* 暖棕色文字 */
    --color-heading: #D488A6;      /* 粉色标题 */
    --color-button: #A8E6CF;       /* 绿色按钮 */
    --color-button-hover: #7ED6DF; /* 蓝色悬停 */
    --shadow-soft: 0 8px 24px rgba(212, 136, 166, 0.15);
    --shadow-card: 0 12px 32px rgba(168, 230, 207, 0.2);
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Comic Sans MS', 'Chalkboard SE', 'Arial Rounded MT Bold', sans-serif;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========================================
   顶部导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 249, 230, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255, 230, 242, 0.98);
    transform: translateY(-2px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--color-heading);
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-button);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--color-heading);
    border-radius: 2px;
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-heading);
    background: rgba(212, 136, 166, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-heading);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    padding: 4rem 2rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    color: var(--color-heading);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '🌸';
    position: absolute;
    right: 0;
    top: 0;
    font-size: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-heading);
    transform: translateX(5px);
}

.contact-info p {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bottom {
    max-width: 1400px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 2px dashed var(--color-heading);
    text-align: center;
    color: var(--color-text);
    font-size: 0.95rem;
}

/* ========================================
   通用组件
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--color-heading);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::before,
.section-title::after {
    content: '✿';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--color-button);
}

.section-title::before {
    left: -40px;
}

.section-title::after {
    right: -40px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
}

.btn-primary {
    background: var(--color-button);
    color: var(--color-text);
}

.btn-primary:hover {
    background: var(--color-button-hover);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 32px rgba(126, 214, 223, 0.3);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-heading);
}

.btn-secondary:hover {
    background: var(--color-heading);
    color: white;
    transform: translateY(-3px);
}

/* ========================================
   卡片样式
   ======================================== */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-heading), var(--color-button));
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--color-button);
    box-shadow: 0 20px 48px rgba(168, 230, 207, 0.3);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin-bottom: 1.5rem;
}

.card-title {
    color: var(--color-heading);
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* ========================================
   动画效果
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background: rgba(255, 249, 230, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transition: var(--transition);
        box-shadow: var(--shadow-soft);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-title::before,
    .section-title::after {
        display: none;
    }

    .card {
        padding: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.2rem;
    }

    .logo img {
        width: 40px;
        height: 40px;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}