/* ===== 全局重置 & 变量 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #faf8f5;
    --color-text: #1e1a17;
    --color-primary: #8c6b4f;
    --color-primary-dark: #6b4f3a;
    --color-accent: #c9a88c;
    --color-light: #f5f0eb;
    --color-white: #ffffff;
    --color-gray: #7a6f66;
    --color-border: #e5ddd6;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(250, 248, 245, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
    padding: 8px 0;
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo i {
    font-size: 1.6rem;
    color: var(--color-primary-dark);
}

.nav-links {
    display: flex;
    gap: 36px;
}

.nav-links a {
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 0.3px;
    color: var(--color-text);
    position: relative;
    padding-bottom: 4px;
    transition: color 0.2s;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-btn {
    font-size: 1.2rem;
    color: var(--color-text);
    padding: 8px;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* 移动端菜单激活 */
.nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 30px 24px;
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--radius) var(--radius);
    gap: 20px;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 100px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, #f5ede4, #ebe2d6 70%, #ddd0c0);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
}

.hero-text .badge {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-text h1 {
    font-family: var(--font-serif);
    font-size: 4.2rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--color-text);
}

.hero-text p {
    font-size: 1.15rem;
    color: var(--color-gray);
    max-width: 480px;
    margin-bottom: 36px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(140, 107, 79, 0.3);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(140, 107, 79, 0.4);
}

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

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-card {
    position: relative;
    max-width: 380px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform 0.4s;
}

.hero-card:hover {
    transform: scale(1.02);
}

.hero-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    background: var(--color-light);
}

.hero-card-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    padding: 8px 18px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--color-gray);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

/* ===== Stats ===== */
.stats {
    background: var(--color-white);
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-num {
    font-family: var(--font-serif);
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-item span:last-child {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ===== 通用section ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.subtitle {
    color: var(--color-gray);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.light-bg {
    background: var(--color-light);
}

.dark-bg {
    background: #2c241e;
    color: var(--color-white);
}

.dark-bg .section-header h2 {
    color: var(--color-white);
}

.dark-bg .subtitle {
    color: #c4b5a5;
}

/* ===== 系列卡片网格 ===== */
.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
}

.collection-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: default;
}

.collection-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.collection-card .card-img {
    height: 280px;
    background: var(--color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.collection-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.collection-card:hover .card-img img {
    transform: scale(1.05);
}

.collection-card .card-body {
    padding: 24px 20px 20px;
}

.collection-card .card-body h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.collection-card .card-body .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    font-size: 0.9rem;
}

.collection-card .card-body .meta .price {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1rem;
}

.collection-card .card-body .tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.collection-card .card-body .tags span {
    background: var(--color-light);
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.75rem;
    color: var(--color-gray);
}

/* ===== 设计师卡片 ===== */
.designers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 40px;
}

.designer-card {
    text-align: center;
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 32px 20px 28px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.designer-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.designer-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--color-light);
    margin: 0 auto 16px;
    overflow: hidden;
    border: 3px solid var(--color-accent);
}

.designer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.designer-card h4 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.designer-card .title {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 10px;
}

.designer-card .bio {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.5;
}

/* ===== 作品展示网格 ===== */
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.showcase-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    background: var(--color-white);
    position: relative;
}

.showcase-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.showcase-item img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
}

.showcase-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
    padding: 30px 20px 18px;
    color: white;
    opacity: 0;
    transition: opacity 0.3s;
}

.showcase-item:hover .overlay {
    opacity: 1;
}

.showcase-item .overlay h4 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
}

.showcase-item .overlay span {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* ===== 联系区 ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2 {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    margin-bottom: 16px;
}

.contact-info p {
    color: #c4b5a5;
    margin-bottom: 30px;
    font-size: 1rem;
}

.contact-list {
    list-style: none;
    margin-bottom: 30px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
    color: #ddd;
}

.contact-list i {
    color: var(--color-accent);
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    gap: 18px;
    font-size: 1.5rem;
}

.social-links a {
    color: var(--color-accent);
    transition: color 0.2s, transform 0.2s;
}

.social-links a:hover {
    color: var(--color-white);
    transform: scale(1.1);
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    padding: 36px 32px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form h3 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.contact-form p {
    color: #b8a99d;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 18px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border 0.2s;
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #a09080;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
}

.form-feedback {
    margin-top: 12px;
    font-size: 0.9rem;
    min-height: 24px;
    color: #b5d6b0;
}

/* ===== Footer ===== */
.footer {
    background: #1a1613;
    color: #a09080;
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    color: var(--color-accent);
    transition: color 0.2s;
}

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

/* ===== 回到顶部 ===== */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--color-primary);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    z-index: 999;
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#backToTop:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-text h1 {
        font-size: 3.2rem;
    }
    .hero-content {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero-text p {
        margin: 0 auto 36px;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-visual {
        order: -1;
    }
    .hero-card {
        max-width: 300px;
        margin: 0 auto;
    }
    .hero-text h1 {
        font-size: 2.6rem;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .stat-num {
        font-size: 2rem;
    }
    .section-header h2 {
        font-size: 2.2rem;
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .showcase-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    .hero-text h1 {
        font-size: 2rem;
    }
    .collection-grid {
        grid-template-columns: 1fr;
    }
    .designers-grid {
        grid-template-columns: 1fr;
    }
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
}