/* ===== CSS Variables ===== */
:root {
    /* 主色调 - 简约高级 + 清新自然融合 */
    --color-white: #FFFFFF;
    --color-cream: #F8F6F4;
    --color-sage: #7D9D7E;
    --color-sage-light: #A8C5A9;
    --color-sage-dark: #5A7A5B;
    --color-earth: #B8A99A;
    --color-text-dark: #2C2C2C;
    --color-text-medium: #6B6B6B;
    --color-text-light: #9B9B9B;
    --color-border: #E8E4E1;
    
    /* 字体 */
    --font-serif: 'Noto Serif SC', serif;
    --font-sans: 'Noto Sans SC', sans-serif;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ===== 动画关键帧 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-dark);
    line-height: 1.7;
    background-color: var(--color-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.3;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-medium);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--color-sage);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-sage-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-dark);
    border: 1px solid var(--color-text-dark);
}

.btn-secondary:hover {
    background-color: var(--color-text-dark);
    color: var(--color-white);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    animation: fadeInDown 0.8s ease-out;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-text-dark);
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-medium);
    letter-spacing: 4px;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-text-medium);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    letter-spacing: 0.5px;
}

.nav-menu a:hover {
    color: var(--color-sage);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background-color: var(--color-text-dark);
    transition: all var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-lg);
    padding: 120px var(--spacing-md) var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.hero-content {
    padding: var(--spacing-lg);
    animation: slideInLeft 1s ease-out 0.3s both;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hero-line1 {
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.hero-line2 {
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease-out 0.9s both;
}

.hero-cta {
    animation: fadeInUp 0.8s ease-out 1.1s both;
}

.hero-image {
    animation: slideInRight 1s ease-out 0.5s both;
}

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

.hero-line1,
.hero-line2 {
    display: block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-placeholder {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-sage-light) 0%, var(--color-sage) 100%);
    border-radius: 200px 200px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.placeholder-content {
    text-align: center;
    color: var(--color-white);
}

.placeholder-content span {
    font-size: 5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.placeholder-content p {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===== Philosophy Section ===== */
.philosophy {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.philosophy-item {
    text-align: center;
    padding: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out both;
}

.philosophy-item:nth-child(1) {
    animation-delay: 0.2s;
}

.philosophy-item:nth-child(2) {
    animation-delay: 0.4s;
}

.philosophy-item:nth-child(3) {
    animation-delay: 0.6s;
}

.philosophy-item:nth-child(4) {
    animation-delay: 0.8s;
}

.philosophy-item .icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

.philosophy-item h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-dark);
}

.philosophy-item p {
    color: var(--color-text-medium);
    font-size: 0.95rem;
}

/* ===== Products Preview ===== */
.products-preview {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-cream);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.product-card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out both;
}

.product-card:nth-child(1) {
    animation-delay: 0.2s;
}

.product-card:nth-child(2) {
    animation-delay: 0.4s;
}

.product-card:nth-child(3) {
    animation-delay: 0.6s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}

.product-placeholder {
    transition: transform var(--transition-normal);
}

.product-card:hover .product-placeholder {
    transform: scale(1.1) rotate(5deg);
}

.product-image {
    aspect-ratio: 1;
    background-color: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-placeholder {
    font-size: 4rem;
    width: 120px;
    height: 120px;
    background-color: var(--color-sage-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-info {
    padding: var(--spacing-md);
    text-align: center;
}

.product-tag {
    display: inline-block;
    background-color: var(--color-sage);
    color: var(--color-white);
    padding: 0.3rem 0.8rem;
    font-size: 0.75rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-xs);
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.product-info p {
    color: var(--color-text-medium);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.coming-soon {
    display: block;
    color: var(--color-sage);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ===== Subscribe Section ===== */
.subscribe {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-dark) 100%);
}

.subscribe-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.subscribe-form .form-group {
    animation: fadeIn 1s ease-out 0.5s both;
}

.subscribe .section-title {
    color: var(--color-white);
}

.subscribe-text {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 2;
}

.subscribe-form .form-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-sans);
}

.form-input:focus {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.subscribe-form .btn-primary {
    background-color: var(--color-text-dark);
    white-space: nowrap;
}

.subscribe-form .btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-text-dark);
}

.form-note {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.subscribe-success {
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-top: var(--spacing-md);
}

.success-icon {
    font-size: 2rem;
    color: var(--color-white);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.subscribe-success p {
    color: var(--color-white);
}

/* ===== Journal Section ===== */
.journal {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.journal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.journal-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out both;
}

.journal-card:nth-child(1) {
    animation-delay: 0.2s;
}

.journal-card:nth-child(2) {
    animation-delay: 0.4s;
}

.journal-card:nth-child(3) {
    animation-delay: 0.6s;
}

.journal-card:hover {
    border-color: var(--color-sage);
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.journal-image {
    aspect-ratio: 16/10;
    background-color: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
}

.journal-placeholder {
    font-size: 3rem;
}

.journal-content {
    padding: var(--spacing-md);
}

.journal-category {
    display: inline-block;
    color: var(--color-sage);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.journal-content h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.journal-content p {
    color: var(--color-text-medium);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.read-more {
    color: var(--color-sage);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.read-more:hover {
    color: var(--color-sage-dark);
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-cream);
}

.contact-content {
    text-align: center;
}

.contact-content p {
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-md);
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-dark);
}

.contact-icon {
    font-size: 1.3rem;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-text-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo-text {
    color: var(--color-white);
    font-size: 2rem;
}

.footer-brand .logo-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--color-white);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 100px;
    }
    
    .hero-content {
        padding: 0;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-placeholder {
        max-width: 350px;
    }
    
    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .journal-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .philosophy-grid,
    .products-grid,
    .journal-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .subscribe-form .form-group {
        flex-direction: column;
    }
    
    .contact-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}