/* ========== 全局重置 & 变量 ========== */
:root {
    --primary: #b76e2e;
    --primary-dark: #8a4f1c;
    --primary-light: #e8a87c;
    --accent: #f59e0b;
    --bg-dark: #1c120c;
    --bg-warm: #fdf6ee;
    --bg-card: #fffbf5;
    --text-dark: #2d1f14;
    --text-muted: #6b5a4e;
    --text-light: #f5ede4;
    --shadow: 0 8px 30px rgba(0,0,0,0.08);
    --shadow-hover: 0 16px 48px rgba(0,0,0,0.15);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: 0.3s cubic-bezier(.4,0,.2,1);
    --font-serif: 'Noto Serif SC', serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-warm);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius);
}

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

ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.highlight {
    color: var(--primary);
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background: transparent;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(183, 110, 46, 0.35);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(183, 110, 46, 0.4);
}

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

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
}

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

/* ========== 导航 ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.site-header.scrolled {
    background: rgba(28, 18, 12, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.2);
    padding: 10px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--text-light);
    font-size: 1.6rem;
}

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

.main-nav ul {
    display: flex;
    gap: 32px;
}

.main-nav a {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: #fff;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text-light);
    border-radius: 4px;
    transition: var(--transition);
}

/* ========== Hero ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: url('https://images.unsplash.com/photo-1615937657715-bc7b4b7962c1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(28,18,12,0.85) 0%, rgba(28,18,12,0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-light);
    max-width: 780px;
    margin: 0 auto;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.25);
    backdrop-filter: blur(4px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(245,158,11,0.3);
    margin-bottom: 28px;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 4.2rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 560px;
    margin: 0 auto 36px;
    color: rgba(255,255,255,0.8);
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--accent);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ========== About ========== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    transition: var(--transition);
}

.about-image:hover img {
    transform: scale(1.03);
}

.image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    color: #fff;
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
}

.about-text h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.about-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.about-list i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* ========== Menu ========== */
.menu {
    background: var(--bg-dark);
    color: var(--text-light);
}

.menu .section-header h2,
.menu .section-header p {
    color: var(--text-light);
}

.menu .section-header p {
    color: rgba(255,255,255,0.6);
}

.menu-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 44px;
}

.filter-btn {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.12);
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.menu-card {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(6px);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.06);
    cursor: default;
}

.menu-card:hover {
    transform: translateY(-8px);
    border-color: rgba(183,110,46,0.3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.menu-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0;
}

.menu-card-body {
    padding: 20px;
}

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

.menu-card-body .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.menu-card-body .desc {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 14px;
}

.menu-card-body .btn-small {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary-light);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.menu-card-body .btn-small:hover {
    background: var(--primary);
    color: #fff;
}

/* ========== Features ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(183,110,46,0.06);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 18px;
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ========== Testimonials ========== */
.testimonials {
    background: var(--bg-dark);
    color: var(--text-light);
}

.testimonials .section-header h2 {
    color: var(--text-light);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.testimonial-card {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(6px);
    border-radius: var(--radius);
    padding: 32px 24px;
    border: 1px solid rgba(255,255,255,0.06);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: rgba(183,110,46,0.2);
}

.testimonial-card .stars {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 14px;
}

.testimonial-card blockquote {
    font-style: italic;
    color: rgba(255,255,255,0.8);
    margin-bottom: 18px;
    line-height: 1.7;
}

.testimonial-card .author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-card .author img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-card .author-info strong {
    display: block;
    color: var(--text-light);
    font-weight: 600;
}

.testimonial-card .author-info span {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

/* ========== Contact ========== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.info-item i {
    font-size: 1.6rem;
    color: var(--primary);
    margin-top: 4px;
    width: 28px;
    text-align: center;
}

.info-item h4 {
    font-weight: 600;
    margin-bottom: 2px;
}

.info-item p,
.info-item a {
    color: var(--text-muted);
}

.info-item a:hover {
    color: var(--primary);
}

.contact-form {
    background: var(--bg-card);
    padding: 36px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e8dcd2;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background: #fff;
    transition: var(--transition);
    outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(183,110,46,0.1);
}

.contact-form textarea {
    resize: vertical;
    margin-bottom: 16px;
}

.form-feedback {
    margin-top: 12px;
    font-weight: 500;
    text-align: center;
    min-height: 24px;
}

.form-feedback.success {
    color: #10b981;
}

.form-feedback.error {
    color: #ef4444;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.7);
    padding: 48px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--text-light);
}

.footer-brand p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-left: 8px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

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

.footer-social {
    display: flex;
    gap: 18px;
}

.footer-social a {
    font-size: 1.4rem;
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    font-size: 0.8rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 20px;
    color: rgba(255,255,255,0.4);
}

/* ========== Back to top ========== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(183,110,46,0.35);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .hero h1 { font-size: 3.4rem; }
    .about-grid { gap: 40px; }
}

@media (max-width: 820px) {
    .section { padding: 72px 0; }
    .hero h1 { font-size: 2.8rem; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .hero-stats { gap: 28px; }
}

@media (max-width: 680px) {
    .hamburger {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 320px;
        height: 100vh;
        background: rgba(28,18,12,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 32px 40px;
        transition: var(--transition);
        box-shadow: -8px 0 40px rgba(0,0,0,0.5);
    }

    .main-nav.open {
        right: 0;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 24px;
    }

    .main-nav a {
        font-size: 1.2rem;
    }

    .hero h1 { font-size: 2.2rem; }
    .hero-desc { font-size: 1rem; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }
    .stat-num { font-size: 1.8rem; }

    .section-header h2 { font-size: 2rem; }

    .menu-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .footer-content { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { min-height: 90vh; }
    .hero h1 { font-size: 1.8rem; }
    .menu-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }
    .back-to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
}