/* ========================================
   北京尧图网络科技有限公司 - 全局样式
   烘焙甜品风：浅粉 + 浅黄 + 奶白
   ======================================== */

/* CSS 变量定义 */
:root {
    --color-primary: #FFB6C1;      /* 浅粉色 */
    --color-secondary: #FFF8DC;    /* 浅黄色 */
    --color-bg: #FFFAF0;           /* 奶白色 */
    --color-text: #5D4E60;         /* 深紫色文字 */
    --color-text-light: #8B7D93;   /* 浅紫色文字 */
    --color-accent: #FF69B4;       /* 亮粉色点缀 */
    --color-white: #FFFFFF;
    --shadow-soft: 0 4px 20px rgba(255, 182, 193, 0.3);
    --shadow-hover: 0 8px 30px rgba(255, 105, 180, 0.4);
    --border-radius: 20px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

ul, ol {
    list-style: none;
}

/* ========================================
   导航栏样式
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 250, 240, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(255, 182, 193, 0.2);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(255, 105, 180, 0.3);
}

.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: 1rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-accent);
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

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

.nav-link {
    position: relative;
    padding: 0.5rem 1rem;
    color: var(--color-text);
    font-weight: 500;
    border-radius: 10px;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 3px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-accent);
    background: rgba(255, 182, 193, 0.1);
}

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

.nav-link.active {
    color: var(--color-accent);
}

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

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 3px;
    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, -6px);
}

/* 移动端菜单 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-bg);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transition: var(--transition);
        overflow-y: auto;
    }

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

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 1rem;
        font-size: 1.2rem;
    }
}

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

.footer-container {
    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-accent);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--color-white);
    border-radius: 3px;
}

.footer-section p,
.footer-section a {
    color: var(--color-text);
    line-height: 2;
    display: block;
}

.footer-section a:hover {
    color: var(--color-white);
    padding-left: 10px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-bottom {
    max-width: 1400px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 2px solid rgba(255, 255, 255, 0.5);
    text-align: center;
    color: var(--color-text);
}

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

.section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '🧁';
    position: absolute;
    right: -40px;
    top: -10px;
    font-size: 2rem;
}

.section-title h2::before {
    content: '🍰';
    position: absolute;
    left: -40px;
    top: -10px;
    font-size: 2rem;
}

.section-title p {
    color: var(--color-text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

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

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.3rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.card-text {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 105, 180, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(255, 105, 180, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

/* ========================================
   动画效果
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   波浪分割线
   ======================================== */
.wave-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 100px;
}

.wave-divider .shape-fill {
    fill: var(--color-bg);
}

/* ========================================
   响应式布局
   ======================================== */
@media (max-width: 1024px) {
    .section-title h2 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 3rem 0;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}