/*
 * CSS 变量系统 (CSS Variable System)
 * 甘肃陇右雍粮餐饮管理有限公司官网样式
 */
:root {
    /* --- 颜色变量 (Colors) --- */
    --color-primary: #A0522D;       /* 主色调：土棕色 (Sienna) - 陇右大地色 */
    --color-secondary: #D2B48C;     /* 辅色调：浅驼色 (Tan) - 沙漠、干净背景 */
    --color-accent: #DC143C;        /* 强调色：深红色 (Crimson) - 热情、辣椒油、行动号召 */
    --color-text-dark: #333333;     /* 深色文本 */
    --color-text-light: #FFFFFF;    /* 浅色文本 */
    --color-background: #F8F8F8;   /* 页面背景 - 比纯白更柔和 */
    --color-border: #E0E0E0;        /* 边框线 */
    --color-hover: #8B4513;         /* 悬停色：深棕色 */

    /* --- 字体变量 (Typography) --- */
    --font-family-primary: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-family-secondary: "SimSun", serif; /* 用于标题或特色文字，体现传统感 */
    --font-size-base: 16px;
    --font-size-h1: 2.8rem;
    --font-size-h2: 2.2rem;
    --font-size-h3: 1.6rem;
    --font-size-h4: 1.2rem;

    /* --- 间距变量 (Spacing) --- */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
    --spacing-xxl: 120px;

    /* --- 圆角与阴影 (Borders & Shadows) --- */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --box-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --box-shadow-md: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* --- 全局重置与基础样式 --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-background);
    min-width: 320px; /* 确保移动端友好 */
}

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color 0.3s ease;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-secondary);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
    margin-bottom: var(--spacing-md);
}

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

.text-center {
    text-align: center;
}

.image-frame {
    width: 100%;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    margin-top: 80px;
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-soft {
    background-color: #F5F5F5;
}

/* --- 通用标题与排版 --- */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--spacing-xl);
}

.section-header p {
    color: #666666;
    font-size: 1rem;
    margin-top: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1rem;
    color: #777777;
    margin-bottom: var(--spacing-md);
}

.section-note {
    font-size: 0.95rem;
    color: #888888;
    margin-top: var(--spacing-sm);
}

.page-hero {
    background: linear-gradient(135deg, rgba(160, 82, 45, 0.96) 0%, rgba(139, 69, 19, 0.92) 100%);
    color: var(--color-text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 55%),
        radial-gradient(circle at 80% 30%, rgba(210, 180, 140, 0.1) 0%, rgba(210, 180, 140, 0) 50%);
    pointer-events: none;
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    color: var(--color-text-light);
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    margin-bottom: var(--spacing-sm);
}

.page-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    max-width: 720px;
    margin: 0 auto;
}

.breadcrumbs {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: var(--spacing-sm);
}

.breadcrumbs a {
    color: rgba(255, 255, 255, 0.9);
}

.breadcrumbs span {
    font-size: 0.8rem;
    opacity: 0.8;
}

.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.three-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.info-card,
.feature-card {
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid rgba(160, 82, 45, 0.12);
}

.info-card ul {
    list-style: disc;
    margin-left: 1.2rem;
    color: #4a3a2c;
}

.info-card ul li {
    margin-bottom: var(--spacing-xs);
}

.feature-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card.highlight {
    background: linear-gradient(135deg, rgba(160, 82, 45, 0.95) 0%, rgba(139, 69, 19, 0.9) 100%);
    color: var(--color-text-light);
    box-shadow: 0 18px 28px rgba(160, 82, 45, 0.2);
    border: none;
}

.feature-card.highlight h3 {
    color: var(--color-text-light);
}

.feature-card.highlight p {
    color: rgba(255, 255, 255, 0.9);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: linear-gradient(135deg, rgba(160, 82, 45, 0.95) 0%, rgba(139, 69, 19, 0.9) 100%);
    color: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 18px 35px rgba(160, 82, 45, 0.22);
}

.stat-card h3 {
    color: var(--color-text-light);
    font-size: 2.4rem;
    margin-bottom: var(--spacing-xs);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag-list span {
    color: #bda27a;
}

.tag {
    background: rgba(220, 20, 60, 0.1);
    color: var(--color-accent);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: bold;
}

.badge-soft {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(160, 82, 45, 0.12);
    color: var(--color-primary);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
}

.highlight-block {
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-md);
    background: rgba(220, 20, 60, 0.05);
    border-radius: 6px;
    margin: var(--spacing-md) 0;
}

.accent-card {
    background: linear-gradient(135deg, rgba(160, 82, 45, 0.95) 0%, rgba(139, 69, 19, 0.9) 100%);
    color: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: 0 20px 38px rgba(160, 82, 45, 0.2);
}

.accent-card h3 {
    color: var(--color-text-light);
}

.timeline {
    display: grid;
    gap: var(--spacing-lg);
    position: relative;
    padding-left: 24px;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 12px;
    bottom: 12px;
    left: 4px;
    width: 2px;
    background: linear-gradient(180deg, rgba(160, 82, 45, 0.15) 0%, rgba(160, 82, 45, 0.5) 60%, rgba(160, 82, 45, 0.15) 100%);
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-md);
}

.timeline-item::before {
    content: attr(data-year);
    position: absolute;
    left: -24px;
    top: 0;
    transform: translateX(-100%);
    background: #fff6eb;
    color: var(--color-primary);
    border-radius: 12px;
    padding: 4px 12px;
    font-weight: bold;
    box-shadow: 0 6px 18px rgba(160, 82, 45, 0.2);
}

blockquote {
    border-left: 4px solid rgba(160, 82, 45, 0.4);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(160, 82, 45, 0.08);
    border-radius: var(--border-radius-md);
    color: #5a4333;
    font-size: 1rem;
    margin: var(--spacing-lg) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.contact-card {
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    border: 1px solid rgba(160, 82, 45, 0.12);
    box-shadow: var(--box-shadow-sm);
}

.contact-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.article-wrapper {
    max-width: 860px;
    margin: 0 auto;
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    box-shadow: 0 18px 45px rgba(160, 82, 45, 0.12);
    border: 1px solid rgba(160, 82, 45, 0.1);
}

.article-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
}

.article-wrapper h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.article-wrapper p {
    color: #4a3a2c;
    margin-bottom: var(--spacing-md);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    color: #777777;
    font-size: 0.95rem;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.article-wrapper ul {
    margin-left: 1.2em;
    color: #4a3a2c;
}

.article-wrapper ul li {
    margin-bottom: var(--spacing-xs);
}

.article-wrapper img {
    border-radius: var(--border-radius-md);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    margin: var(--spacing-lg) 0;
}

.timeline-block {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    align-items: center;
}

.timeline-block + .timeline-block {
    margin-top: var(--spacing-xl);
}

.timeline-block img {
    margin: 0;
}

@media (max-width: 768px) {
    .page-hero {
        padding: var(--spacing-xl) 0;
    }

    .two-column,
    .three-column,
    .stat-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Section 标题统一样式 --- */
/* --- 横向滚动基础组件 --- */
.h-scroll-wrapper {
    position: relative;
    margin-top: var(--spacing-lg);
}

.h-scroll-area {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(260px, 320px);
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding: var(--spacing-md) var(--spacing-xl);
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--spacing-xl);
    scrollbar-width: none;
}

.h-scroll-area::-webkit-scrollbar {
    display: none;
}

.h-scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(160, 82, 45, 0.9);
    color: var(--color-text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow-md);
    transition: background-color 0.3s ease, transform 0.3s ease;
    z-index: 5;
}

.h-scroll-btn span {
    font-size: 1.6rem;
    line-height: 1;
}

.h-scroll-btn:hover {
    background: var(--color-hover);
    transform: translateY(-50%) scale(1.05);
}

.h-scroll-btn:disabled {
    background: rgba(160, 82, 45, 0.35);
    cursor: not-allowed;
    transform: translateY(-50%);
}

.h-scroll-btn.prev {
    left: var(--spacing-md);
}

.h-scroll-btn.next {
    right: var(--spacing-md);
}

@media (max-width: 768px) {
    .h-scroll-area {
        padding: var(--spacing-md);
        grid-auto-columns: minmax(220px, 80%);
        scroll-padding-left: var(--spacing-md);
    }

    .h-scroll-btn {
        display: none;
    }
}

/* --- 按钮样式 --- */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

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

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

.btn-accent:hover {
    background-color: #C00; /* 强调色深一点 */
    border-color: #C00;
}

/* --- 响应式 Grid 布局基础 --- */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.grid-item {
    padding: var(--spacing-md);
    background-color: var(--color-text-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.card {
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(160, 82, 45, 0.1);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-body {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.card-body h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.card-body p {
    color: #666666;
}

.card-footer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    margin-top: auto;
}

.card-footer a {
    color: var(--color-accent);
    font-weight: bold;
}

.card-meta {
    font-size: 0.9rem;
    color: #999999;
}

.card-link {
    color: var(--color-accent);
    font-weight: bold;
}

.avatar-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #A0522D 0%, #8B4513 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 2rem;
    margin: 0 auto var(--spacing-sm);
}

.team-card {
    text-align: center;
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid rgba(160, 82, 45, 0.08);
}

.team-card h4 {
    margin-bottom: var(--spacing-xs);
}

.team-card p {
    color: #777777;
    font-size: 0.95rem;
}

/* --- 招牌菜横向滚动卡片 --- */
.menu-card {
    background: var(--color-text-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    overflow: hidden;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.menu-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.menu-card-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.menu-card-content h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.menu-card-content p {
    color: #666666;
    margin-bottom: 0;
}

.menu-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: auto;
}

.menu-card-tag {
    font-size: 0.8rem;
    color: var(--color-accent);
    background: rgba(220, 20, 60, 0.12);
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: bold;
}

/* --- 文化长卷 --- */
.culture-scroll-section {
    background: linear-gradient(180deg, #fdf8f2 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.culture-scroll-wrapper {
    position: relative;
    margin-top: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
}

.culture-scroll-wrapper::before,
.culture-scroll-wrapper::after {
    content: "";
    position: absolute;
    top: 20px;
    width: 120px;
    height: 100%;
    background: linear-gradient(135deg, rgba(160, 82, 45, 0.05) 0%, rgba(210, 180, 140, 0.15) 100%);
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(160, 82, 45, 0.1);
    z-index: 1;
}

.culture-scroll-wrapper::before {
    left: -60px;
}

.culture-scroll-wrapper::after {
    right: -60px;
}

.culture-scroll {
    grid-auto-columns: minmax(280px, 360px);
    padding-top: calc(var(--spacing-xl) + 40px);
    padding-bottom: var(--spacing-xl);
}

.culture-scroll-track {
    position: absolute;
    top: 80px;
    left: var(--spacing-xl);
    right: var(--spacing-xl);
    height: 3px;
    background: linear-gradient(90deg, rgba(160, 82, 45, 0.15) 0%, rgba(160, 82, 45, 0.45) 50%, rgba(160, 82, 45, 0.1) 100%);
    z-index: 2;
}

.culture-panel {
    scroll-snap-align: center;
    background: #fffdf7;
    border-radius: 16px;
    border: 1px solid rgba(160, 82, 45, 0.15);
    box-shadow: 0 12px 30px rgba(160, 82, 45, 0.15);
    padding: var(--spacing-lg);
    position: relative;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.culture-panel::before {
    content: attr(data-year);
    position: absolute;
    top: -38px;
    left: 20px;
    font-size: 1.1rem;
    font-weight: bold;
    color: rgba(160, 82, 45, 0.9);
    background: #fff6eb;
    padding: 6px 16px;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(160, 82, 45, 0.2);
}

.culture-panel h3 {
    color: var(--color-primary);
    font-size: 1.4rem;
}

.culture-panel p {
    color: #5a4333;
}

.culture-panel ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-xs);
    padding: 0;
    color: #6f523d;
}

.culture-panel ul li::before {
    content: "•";
    color: var(--color-accent);
    margin-right: 8px;
}

@media (max-width: 768px) {
    .culture-scroll-wrapper::before,
    .culture-scroll-wrapper::after {
        display: none;
    }

    .culture-scroll-track {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }

    .culture-scroll {
        padding-top: var(--spacing-xl);
    }

    .culture-panel::before {
        top: -32px;
        left: 16px;
    }
}

/* --- 导航栏样式 --- */
.header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-text-light);
    box-shadow: var(--box-shadow-md);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    gap: var(--spacing-lg);
}
.header-nav .container {
    padding-left: 0;
}

.logo {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--color-primary);
    line-height: 1.1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.logo-title {
    font-size: 1.35rem;
    letter-spacing: 0.5px;
}

.logo-tagline {
    font-size: 0.85rem;
    font-weight: 500;
    color: #8B5E3C;
    letter-spacing: 1px;
}

.nav-menu {
    list-style: none;
    display: flex;
}

.nav-item {
    position: relative;
    margin-left: var(--spacing-lg);
}

.nav-item > a {
    display: block;
    padding: 10px 0;
    color: var(--color-text-dark);
    font-weight: bold;
}

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

/* 二级下拉菜单 */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 150px;
    background-color: var(--color-text-light);
    box-shadow: var(--box-shadow-md);
    list-style: none;
    padding: var(--spacing-sm) 0;
    border-radius: var(--border-radius-sm);
}

.nav-item:hover .dropdown-menu {
    display: block;
}

.dropdown-item a {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-dark);
    display: block;
}

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

/* 移动端菜单隐藏 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    /* 移动端汉堡菜单图标等后续通过JS实现 */
}

/* --- 页脚样式 --- */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col a {
    color: var(--color-text-light);
    display: block;
    padding: var(--spacing-xs) 0;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    font-size: 0.85rem;
}