/* ============================================================
   css/style.css - 鲁柳食品 全局样式
   ============================================================ */

:root {
    --primary: #7A2E1A;
    --primary-light: #9E4A30;
    --primary-dark: #5A1F0E;
    --gold: #C49A6C;
    --gold-light: #E8D5B8;
    --cream: #FDF8F2;
    --warm: #F5EDE4;
    --text-dark: #1F140F;
    --text-muted: #6B5A4F;
    --text-light: #A69284;
    --white: #FFFFFF;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 12px 40px rgba(122, 46, 26, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
}

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

body {
    font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    color: var(--text-dark);
    background: var(--cream);
    line-height: 1.7;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- 按钮 ---------- */
.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 14px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
}
.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(122, 46, 26, 0.3);
}

.btn-outline {
    display: inline-block;
    background: transparent;
    color: var(--primary);
    padding: 12px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    border: 2px solid var(--primary);
    cursor: pointer;
    transition: var(--transition);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-gold {
    display: inline-block;
    background: var(--gold);
    color: var(--text-dark);
    padding: 14px 48px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}
.btn-gold:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
}

.section-title {
    font-size: 34px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-dark);
    letter-spacing: 1px;
}
.section-title span {
    color: var(--primary);
}
.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 17px;
    font-weight: 300;
    margin-bottom: 40px;
}

/* ---------- 顶部栏 ---------- */
.top-bar {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    padding: 8px 0;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
}
.top-bar a {
    color: rgba(255, 255, 255, 0.7);
    margin-left: 14px;
    transition: var(--transition);
}
.top-bar a:hover {
    color: var(--white);
}

/* ---------- 导航 ---------- */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    padding-bottom: 12px;
    flex-wrap: wrap;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: 2px;
}
.logo i {
    font-size: 30px;
    color: var(--gold);
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 28px;
    font-weight: 500;
    font-size: 15px;
    align-items: center;
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--text-dark);
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    border-bottom-color: var(--gold);
}
.lang-switch {
    font-size: 13px;
    color: var(--text-muted);
    padding: 4px 12px;
    border: 1px solid #ddd;
    border-radius: 20px;
    transition: var(--transition);
}
.lang-switch:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.hamburger {
    display: none;
    font-size: 28px;
    color: var(--primary);
    cursor: pointer;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
    background: var(--warm);
    padding: 14px 0;
    font-size: 14px;
    color: var(--text-muted);
    border-bottom: 1px solid #e8ddd5;
}
.breadcrumb a {
    color: var(--primary);
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.breadcrumb .sep {
    margin: 0 8px;
    color: var(--text-light);
}

/* ---------- 页脚 ---------- */
.footer {
    background: #1A1110;
    color: rgba(255, 255, 255, 0.7);
    padding: 50px 0 20px;
}
.footer .container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer h4 {
    color: var(--white);
    font-size: 17px;
    margin-bottom: 14px;
}
.footer p,
.footer a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 2;
}
.footer a:hover {
    color: var(--white);
}
.footer .brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}
.footer .brand i {
    color: var(--gold);
}
.footer .brand-sub {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 2px;
}
.footer-bottom {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}
.footer-bottom span {
    color: var(--gold);
}

/* ---------- CTA ---------- */
.cta {
    padding: 50px 0;
    background: var(--primary-dark);
    color: var(--white);
    text-align: center;
}
.cta h2 {
    font-size: 32px;
    margin-bottom: 10px;
}
.cta p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-size: 16px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .nav-links {
        gap: 18px;
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    .nav-links {
        display: none;
        flex-basis: 100%;
        flex-direction: column;
        gap: 14px;
        padding: 20px 0 12px;
        border-top: 1px solid #eee;
        align-items: flex-start;
    }
    .nav-links.open {
        display: flex;
    }
    .section-title {
        font-size: 26px;
    }
    .logo {
        font-size: 22px;
    }
    .logo i {
        font-size: 24px;
    }
    .footer .container {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .cta h2 {
        font-size: 26px;
    }
}

@media (max-width: 480px) {
    .footer .container {
        grid-template-columns: 1fr;
    }
    .container {
        padding: 0 16px;
    }
    .btn-primary,
    .btn-outline,
    .btn-gold {
        padding: 12px 28px;
        font-size: 14px;
    }
}