/* ========================================
   新盛官方网站 - 便当网格扁平化设计风格
   ======================================== */

/* CSS Variables - Design System */
:root {
    /* Colors */
    --page-bg: #F5F5F7;
    --card-bg: #FFFFFF;
    --text: #1D1D1F;
    --text-soft: #55555C;
    --accent: #0066CC;
    --accent-hover: #0052A3;
    --border: rgba(0, 0, 0, 0.05);
    --border-strong: rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --grid-gap: 20px;
    --card-radius: 20px;
    --section-padding: 80px;
    --container-max: 1200px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Shadows (minimal for flat design) */
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.05), 0 22px 44px -14px rgba(0, 0, 0, 0.08);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    background-color: var(--page-bg);
    color: var(--text);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
}

h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 16px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

p {
    margin-bottom: 16px;
    color: var(--text-soft);
}

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

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

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 16px 0;
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
}

.navbar-brand svg {
    width: 32px;
    height: 32px;
}

.navbar-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.navbar-menu a {
    color: var(--text-soft);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

.navbar-menu a:hover {
    color: var(--accent);
}

.navbar-cta {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--card-radius);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    min-height: 44px;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background: var(--accent);
    color: #FFFFFF;
}

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

.btn-ghost:hover {
    background: var(--page-bg);
    color: var(--text);
}

/* Hero Section */
.hero {
    padding: var(--section-padding) 0;
    background: var(--card-bg);
}

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

.hero-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-soft);
    margin-bottom: 32px;
    max-width: 34em;
}

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

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

.hero-graphic {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--accent) 0%, #0052A3 100%);
    border-radius: var(--card-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-graphic::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: 20%;
    left: 20%;
}

.hero-graphic::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    bottom: 15%;
    right: 15%;
}

/* Bento Grid Cards */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.bento-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.bento-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.bento-card-icon {
    width: 48px;
    height: 48px;
    background: var(--page-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.bento-card-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
}

.bento-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.bento-card p {
    font-size: 15px;
    color: var(--text-soft);
    margin-bottom: 0;
}

/* Section */
.section {
    padding: var(--section-padding) 0;
}

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

.section-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-soft);
    max-width: 600px;
    margin: 0 auto;
}

/* Chips */
.chip-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 24px;
}

.chip {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-soft);
}

/* Form */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    font-size: 15px;
    font-family: var(--font-family);
    transition: var(--transition);
    background: var(--card-bg);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--text);
    color: #FFFFFF;
    padding: 60px 0 30px;
    margin-top: var(--section-padding);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

.footer-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Contact Info */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.contact-item {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--card-radius);
    border: 1px solid var(--border);
}

.contact-item-icon {
    width: 40px;
    height: 40px;
    background: var(--page-bg);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.contact-item-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent);
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-soft);
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0;
}

.contact-item a {
    color: var(--text);
    font-weight: 500;
}

/* Map Container */
.map-container {
    margin-top: 40px;
    border-radius: var(--card-radius);
    overflow: hidden;
    border: 1px solid var(--border);
    height: 400px;
    background: var(--card-bg);
}

/* News Cards */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.news-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.news-card-image {
    width: 100%;
    height: 200px;
    background: var(--page-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-card-content {
    padding: 24px;
}

.news-card-date {
    font-size: 13px;
    color: var(--text-soft);
    margin-bottom: 8px;
}

.news-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}

.news-card-excerpt {
    font-size: 14px;
    color: var(--text-soft);
    margin-bottom: 16px;
    line-height: 1.6;
}

.news-card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin: 5px 0;
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--card-bg);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        gap: 16px;
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .navbar-cta {
        display: none;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}

/* Accessibility */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}