/* Google Fonts 引入 */
@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Archivo:wght@400;600;700&display=swap');

:root {
    --cream: #F7EED3;
    --orange: #E8531F;
    --dark: #2A1B12;
    --mustard: #E3A72F;
    --radius: 0px; /* 直角和圆角混合的复古风，按钮用pill */
    --transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1); /* 150ms snap-in */
}

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

body {
    font-family: 'Archivo', sans-serif;
    color: var(--dark);
    background-color: var(--cream);
    /* 细微的颗粒感背景 */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .brand, .badge, .sticker {
    font-family: 'Archivo Black', sans-serif;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* 布局辅助 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.section-padding {
    padding: 100px 0;
}

/* 分隔双斜纹 (Twin stripes) */
.stripe-divider {
    height: 16px;
    background: repeating-linear-gradient(
        -45deg,
        var(--orange),
        var(--orange) 10px,
        var(--cream) 10px,
        var(--cream) 20px
    );
    border-top: 3px solid var(--dark);
    border-bottom: 3px solid var(--dark);
    width: 100%;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 50px;
    text-shadow: 2px 2px 0px var(--mustard);
}

/* 导航栏 */
.navbar {
    border-bottom: 3px solid var(--dark);
    padding: 15px 0;
    background-color: var(--cream);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
}

.logo svg {
    width: 48px;
    height: 48px;
}

.logo .brand {
    font-size: 1.8rem;
}

.navbar nav a {
    text-decoration: none;
    color: var(--dark);
    margin-left: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.navbar nav a:hover {
    color: var(--orange);
    border-bottom: 3px solid var(--orange);
}

/* Hero 区域 */
.hero {
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 25px;
    text-shadow: 4px 4px 0px var(--mustard);
    position: relative;
    display: inline-block;
}

.hero p {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 (Chunky Pill Buttons) */
.btn {
    display: inline-block;
    padding: 16px 36px;
    font-size: 1.2rem;
    font-family: 'Archivo Black', sans-serif;
    text-decoration: none;
    border-radius: 50px; /* Pill */
    border: 3px solid var(--dark);
    box-shadow: 4px 4px 0px 0px var(--dark);
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--orange);
    color: var(--cream);
}

.btn-primary:hover {
    background-color: #d14212;
}

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

.btn-secondary:hover {
    background-color: #c99327;
}

.btn-outline {
    background-color: var(--cream);
    color: var(--dark);
}

.btn-outline:hover {
    background-color: #e8debf;
}

/* 按钮点击效果 */
.btn:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px 0px var(--dark);
}

/* 网格系统 */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

/* 卡片样式 (Sticker Cards) */
.card {
    background-color: var(--cream);
    padding: 40px 30px;
    border: 3px solid var(--dark);
    box-shadow: 6px 6px 0px 0px var(--dark);
    transform: rotate(-2deg);
    transition: var(--transition);
    position: relative;
}

/* 交替旋转角度，增加随机感 */
.card:nth-child(even) {
    transform: rotate(1.5deg);
}
.card:nth-child(3n) {
    transform: rotate(-1deg);
}

.card:hover {
    transform: rotate(0deg) scale(1.02);
    box-shadow: 8px 8px 0px 0px var(--dark);
    z-index: 10;
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--orange);
    text-shadow: 1px 1px 0px var(--dark);
}

/* 贴纸徽章 (Sticker Badges) */
.sticker {
    position: absolute;
    background-color: var(--mustard);
    color: var(--dark);
    border: 3px solid var(--dark);
    border-radius: 50%;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1.1rem;
    transform: rotate(15deg);
    box-shadow: 3px 3px 0px 0px var(--dark);
    z-index: 5;
}

.sticker.red {
    background-color: var(--orange);
    color: var(--cream);
}

/* 定位一些贴纸 */
.sticker-hero {
    top: -20px;
    right: -30px;
}

.sticker-price {
    top: -30px;
    right: -20px;
    transform: rotate(-10deg);
}

/* 定价表 */
.pricing-card {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pricing-card.popular {
    background-color: var(--dark);
    color: var(--cream);
}

.pricing-card.popular h3, .pricing-card.popular .price, .pricing-card.popular .price span {
    color: var(--cream);
    text-shadow: none;
}

.price {
    font-size: 3.5rem;
    font-family: 'Archivo Black', sans-serif;
    margin: 20px 0;
    color: var(--dark);
}

.price span {
    font-size: 1.2rem;
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 40px;
    flex-grow: 1;
    text-align: left;
}

.pricing-card ul li {
    margin-bottom: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    padding-left: 25px;
    position: relative;
}

.pricing-card ul li::before {
    content: "⚡";
    position: absolute;
    left: 0;
    top: 0;
}

.pricing-card.popular ul li::before {
    content: "🏁";
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--cream);
    border: 3px solid var(--dark);
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 4px 4px 0px 0px var(--dark);
}

.faq-item h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--orange);
}

.faq-item p {
    font-weight: 600;
}

/* 用户评价 */
.review-card {
    background-color: var(--mustard);
}
.review-card p {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}
.review-card .author {
    font-family: 'Archivo Black', sans-serif;
}

/* 页脚 */
.footer {
    border-top: 3px solid var(--dark);
    background-color: var(--dark);
    color: var(--cream);
    padding: 60px 0 40px;
    text-align: center;
}

.footer-links {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--mustard);
    text-decoration: none;
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.1rem;
    transition: var(--transition);
}

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

.copyright {
    font-weight: 600;
}

/* 响应式媒体查询 */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .navbar nav {
        display: none;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }
    
    .btn {
        width: 100%;
        display: block;
    }

    .sticker {
        width: 70px;
        height: 70px;
        font-size: 0.9rem;
    }
}