/* ============================
   花肌粹 FLOWER'YLAND - 极简版
   设计语言：极简、留白、克制
   ============================ */

/* CSS 变量 */
:root {
    --color-primary: #2C2C2C;
    --color-accent: #8B9D6E;
    --color-accent-light: #B5C4A0;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7F7F5;
    --color-text: #1A1A1A;
    --color-text-light: #6B6B6B;
    --color-text-lighter: #9C9C9C;
    --color-border: #E8E8E5;
    --color-white: #FFFFFF;
    --section-padding: 140px 0;
    --container-width: 1100px;
    --font-cn: 'Noto Serif SC', serif;
    --font-en: 'Outfit', -apple-system, sans-serif;
    --transition: 0.3s ease;
}

/* 基础重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-cn);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.8;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 30px;
}

/* ============================
   通用
   ============================ */
.section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: block;
    font-family: var(--font-en);
    font-size: 0.7rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--color-text-lighter);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 400;
    letter-spacing: 4px;
    color: var(--color-text);
    line-height: 1.4;
}

.section-subtitle {
    font-family: var(--font-en);
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 1px;
    margin-top: 8px;
}

.btn {
    display: inline-block;
    padding: 13px 32px;
    font-family: var(--font-en);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-weight: 400;
}

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

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

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

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

/* ============================
   动画
   ============================ */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.animate-in:nth-child(2) {
    animation-delay: 0.15s;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ============================
   导航栏
   ============================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-cn {
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--color-text);
}

.logo-en {
    font-family: var(--font-en);
    font-size: 0.55rem;
    letter-spacing: 3px;
    color: var(--color-text-lighter);
    text-transform: uppercase;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-family: var(--font-en);
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    color: var(--color-text-lighter);
    text-transform: uppercase;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 5px;
    padding-left: 20px;
    border-left: 1px solid var(--color-border);
}

.lang-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-lighter);
    padding: 2px 4px;
    transition: var(--transition);
    border-radius: 2px;
}

.lang-btn:hover { color: var(--color-text); }
.lang-btn.active { color: var(--color-text); font-weight: 600; }

.lang-divider {
    color: var(--color-border);
    font-size: 0.7rem;
}

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

.hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ============================
   Hero 主视觉
   ============================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-bg);
    position: relative;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding-top: 80px;
}

.hero-subtitle {
    font-family: var(--font-en);
    font-size: 0.7rem;
    letter-spacing: 4px;
    color: var(--color-text-lighter);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.4rem;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: 2px;
    margin-bottom: 24px;
    color: var(--color-text);
}

.text-accent {
    font-style: italic;
    color: var(--color-accent);
}

.hero-desc {
    font-family: var(--font-en);
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 420px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-visual-inner {
    width: 360px;
    height: 360px;
    background: var(--color-bg-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    border: 1px solid var(--color-border);
}

/* ============================
   品牌故事
   ============================ */
.story {
    background: var(--color-bg-alt);
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.story-image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.story-text p {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.story-text p:first-child {
    font-size: 1.05rem;
    color: var(--color-text);
    font-weight: 500;
}

.story-sign {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.story-sign-name {
    font-size: 0.9rem;
    color: var(--color-text-light);
    letter-spacing: 2px;
}

.story-sign-year {
    font-family: var(--font-en);
    font-size: 0.8rem;
    color: var(--color-text-lighter);
    margin-left: 10px;
}

/* ============================
   产品系列
   ============================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    padding: 40px 24px;
    text-align: center;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.product-card:hover {
    background: var(--color-bg-alt);
    border-color: var(--color-accent-light);
}

.product-icon {
    font-size: 2.8rem;
    margin-bottom: 24px;
    display: block;
}

.product-name {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.product-desc {
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.6;
    font-family: var(--font-en);
}

.product-status {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--color-text-lighter);
    font-family: var(--font-en);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ============================
   护肤哲学
   ============================ */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.phil-card {
    padding: 40px 24px;
    border: 1px solid var(--color-border);
    text-align: center;
    transition: var(--transition);
}

.phil-card:hover {
    background: var(--color-bg-alt);
}

.phil-icon {
    font-size: 2rem;
    margin-bottom: 20px;
    display: block;
}

.phil-card h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.phil-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.8;
    font-family: var(--font-en);
    font-weight: 300;
}

/* ============================
   统计数据
   ============================ */
.stats {
    background: var(--color-primary);
    padding: 100px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

.stat-item {
    color: var(--color-white);
}

.stat-number {
    font-family: var(--font-en);
    font-size: 3rem;
    font-weight: 300;
    display: inline;
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 300;
    margin-left: 1px;
}

.stat-label {
    font-family: var(--font-en);
    font-size: 0.75rem;
    margin-top: 8px;
    opacity: 0.6;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 300;
}

/* ============================
   联系我们
   ============================ */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item h4 {
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 4px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: var(--font-en);
}

.contact-item p,
.contact-item a {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.contact-item a:hover {
    color: var(--color-accent);
}

.contact-form {
    border: 1px solid var(--color-border);
    padding: 40px;
}

.form-group {
    margin-bottom: 16px;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--color-border);
    font-family: var(--font-en);
    font-size: 0.85rem;
    background: var(--color-bg);
    transition: var(--transition);
    color: var(--color-text);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-primary);
    background: var(--color-white);
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
    font-family: var(--font-cn);
}

.btn-submit {
    width: 100%;
    margin-top: 8px;
}

/* ============================
   底部
   ============================ */
.footer {
    background: var(--color-bg-alt);
    padding: 80px 0 30px;
    border-top: 1px solid var(--color-border);
}

.footer .logo-cn {
    color: var(--color-text);
}

.footer .logo-en {
    color: var(--color-text-lighter);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 50px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 30px;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 12px;
    line-height: 1.8;
}

.footer-links h4,
.footer-social h4 {
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--color-text-lighter);
    font-family: var(--font-en);
    font-weight: 400;
}

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    font-size: 0.85rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

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

.social-grid {
    display: flex;
    gap: 12px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    font-size: 1rem;
    transition: var(--transition);
}

.social-link:hover {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-lighter);
    font-family: var(--font-en);
}

.footer-icp a {
    color: var(--color-text-lighter);
}
.footer-icp a:hover { color: var(--color-accent); }

/* ============================
   响应式
   ============================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-desc {
        margin: 0 auto 40px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual-inner {
        width: 240px;
        height: 240px;
        font-size: 4rem;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .products-grid,
    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .story-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .nav .lang-switch { display: none; }
    .nav-list { display: none; }
    .hamburger { display: flex; }

    .header .nav-open .nav-list {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(16px);
        padding: 24px 30px;
        gap: 20px;
        text-align: center;
        border-bottom: 1px solid var(--color-border);
    }

    .header.nav-open .lang-switch {
        display: flex;
        position: absolute;
        top: 100%;
        right: 30px;
        margin-top: 12px;
        padding-left: 0;
        border-left: none;
    }

    .hero-title { font-size: 2rem; }
    .hero-visual-inner { width: 180px; height: 180px; font-size: 3rem; }

    .products-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .product-card { padding: 28px 16px; }
    .philosophy-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .phil-card { padding: 28px 16px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .stat-number { font-size: 2.2rem; }

    .section { padding: 100px 0; }
    .section-title { font-size: 1.6rem; }

    .contact-form { padding: 24px; }

    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
    .products-grid,
    .philosophy-grid {
        grid-template-columns: 1fr;
    }

    .hero-title { font-size: 1.7rem; }

    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }

    .btn { width: 100%; text-align: center; }
}