@import url('variables.css');

/* ------------------------------
   全局基础设置
------------------------------ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-main);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: linear-gradient(180deg, #fefef8 0%, var(--color-cream) 35%, #f4f7eb 100%);
    min-height: 100vh;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-text-dark);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

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

.container {
    width: min(1200px, 90%);
    margin: 0 auto;
}

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

.section-heading {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-heading span {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border-radius: var(--radius-full, 999px);
    border: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-heading h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    margin: var(--spacing-sm) 0;
}

.section-heading p {
    max-width: 640px;
    margin: 0 auto;
    color: var(--color-text-muted);
}

.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ------------------------------
   导航
------------------------------ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(249, 251, 231, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(90, 120, 70, 0.1);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo a {
    font-family: var(--font-family-heading);
    font-size: 1.5rem;
    color: var(--color-primary-dark);
    letter-spacing: 2px;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    color: var(--color-primary-dark);
    font-weight: 600;
    padding: var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    line-height: 1.2;
}

.nav-menu > li > a::after {
    content: '';
    display: block;
    height: 2px;
    background: var(--color-accent);
    width: 0;
    transition: width 0.3s ease;
    margin-top: 4px;
}

.nav-menu > li:hover > a::after,
.nav-menu > li > a.active::after {
    width: 100%;
}

.dropdown-menu {
    list-style: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-sm) 0;
    min-width: 200px;
    display: none;
}

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

.dropdown-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-text);
}

.dropdown-menu li a:hover {
    background: rgba(85, 139, 47, 0.08);
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    color: var(--color-primary);
}

.header-placeholder {
    height: 86px;
}

.header.scrolled {
    box-shadow: 0 15px 40px rgba(33, 53, 22, 0.08);
}

/* ------------------------------
   通用组件
------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
    background: var(--gradient-sunrise);
    color: var(--color-white);
    box-shadow: 0 15px 30px rgba(85, 139, 47, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-border);
}

.btn-ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: var(--color-white);
}

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

.tag-list span {
    padding: 4px 16px;
    border-radius: 999px;
    background: rgba(85, 139, 47, 0.1);
    color: var(--color-primary-dark);
    font-size: var(--font-size-sm);
}

.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-soft);
}

.earthy-panel {
    background: radial-gradient(circle at top, rgba(255, 236, 179, 0.4), transparent 60%), var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

/* ------------------------------
   首页
------------------------------ */
.hero-harvest {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-image: linear-gradient(120deg, rgba(10, 20, 5, 0.55), rgba(39, 67, 27, 0.4)), url('../images/base_orchard_view_43.png');
    background-size: cover;
    background-position: center;
    color: var(--color-white);
    padding-top: 90px;
}

.hero-content {
    max-width: 640px;
}

.hero-content h1 {
    font-family: var(--font-family-heading);
    font-size: clamp(2.5rem, 4vw, 3.8rem);
    margin-bottom: var(--spacing-md);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.tagline {
    text-transform: uppercase;
    letter-spacing: 4px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.75);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.hero-meta .stat {
    min-width: 140px;
}

.hero-meta .stat strong {
    font-size: 1.8rem;
    display: block;
    color: var(--color-accent);
}

.hero-feature-card {
    margin-left: auto;
    width: min(420px, 90%);
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-text);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-card);
}

.hero-feature-card h3 {
    color: var(--color-primary-dark);
}

.hero-feature-card ul {
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-md) 0;
}

.hero-feature-card li {
    position: relative;
    padding-left: 20px;
    margin-bottom: var(--spacing-sm);
}

.hero-feature-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
}

.highlight-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-soft);
}

.highlight-card img {
    height: 80px;
    width: auto;
    margin-bottom: var(--spacing-md);
    object-fit: contain;
}

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

.product-card img {
    border-radius: var(--radius-md);
    height: 260px;
    object-fit: cover;
    margin-bottom: var(--spacing-md);
}

.product-card h3 {
    margin-bottom: var(--spacing-sm);
}

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

.photo-ribbon figure {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.photo-ribbon figcaption {
    position: absolute;
    bottom: 12px;
    left: 16px;
    padding: 6px 14px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border-radius: 999px;
    font-size: var(--font-size-sm);
}

.cert-grid,
.purchase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.cert-card {
    border: 1px dashed rgba(85, 139, 47, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    background: var(--color-white);
}

.story-timeline {
    display: grid;
    gap: var(--spacing-lg);
}

.timeline-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.timeline-item span {
    font-family: var(--font-family-heading);
    font-size: 1.5rem;
    color: var(--color-accent);
}

.timeline-item p {
    margin: 0;
}

.purchase-grid .card {
    text-align: center;
}

.purchase-grid img {
    height: 120px;
    object-fit: contain;
    margin-bottom: var(--spacing-md);
}

/* ------------------------------
   内页
------------------------------ */
.page-hero {
    margin-top: 90px;
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(120deg, rgba(85, 139, 47, 0.9), rgba(141, 110, 99, 0.8)), url('../images/base_orchard_harvest_02.png');
    background-size: cover;
    background-position: center;
    color: var(--color-white);
    text-align: center;
}

.page-hero h1 {
    font-family: var(--font-family-heading);
    font-size: clamp(2rem, 3vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.page-hero p {
    max-width: 720px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.85);
}

.content-layout {
    display: grid;
    grid-template-columns: minmax(240px, 280px) 1fr;
    gap: var(--spacing-xl);
}

.sidebar {
    position: sticky;
    top: 110px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-soft);
}

.sidebar h4 {
    margin-bottom: var(--spacing-md);
    font-family: var(--font-family-heading);
}

.sidebar ul {
    list-style: none;
}

.sidebar li + li {
    margin-top: var(--spacing-sm);
}

.sidebar a {
    color: var(--color-text);
    display: block;
    padding: 6px 0;
}

.sidebar a.active {
    color: var(--color-primary);
    font-weight: 600;
}

.content-area {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.content-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-soft);
}

.content-card h2 {
    font-family: var(--font-family-heading);
    margin-bottom: var(--spacing-md);
}

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

.fact-item {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
}

.timeline-list {
    border-left: 2px solid rgba(85, 139, 47, 0.2);
    padding-left: var(--spacing-lg);
}

.timeline-list li {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.table-data {
    width: 100%;
    border-collapse: collapse;
}

.table-data th,
.table-data td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.table-data th {
    text-align: left;
    color: var(--color-text-muted);
}

.news-list {
    display: grid;
    gap: var(--spacing-lg);
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.news-card img {
    height: 220px;
    object-fit: cover;
}

.news-card .news-content {
    padding: var(--spacing-lg);
}

.news-card h3 {
    margin: 0 0 var(--spacing-sm);
}

.news-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.news-article header {
    margin-bottom: var(--spacing-lg);
}

.news-article h2 {
    font-family: var(--font-family-heading);
    margin-top: var(--spacing-sm);
}

.news-article figure {
    margin: var(--spacing-xl) 0;
}

.news-article img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.news-article p {
    margin-bottom: var(--spacing-md);
    text-indent: 2em;
}

.cases-grid,
.partners-grid,
.purchase-grid,
.job-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-xl);
}

.partner-card,
.case-card,
.job-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

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

.contact-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group input,
.form-group textarea {
    padding: 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: #fcfdf7;
}

/* ------------------------------
   页脚
------------------------------ */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer .grid {
    gap: var(--spacing-lg);
}

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

.footer ul {
    list-style: none;
}

.footer ul li + li {
    margin-top: 6px;
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    font-size: var(--font-size-sm);
}

/* ------------------------------
   响应式
------------------------------ */
@media (max-width: 991px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(249, 251, 231, 0.98);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-card);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        border-radius: var(--radius-md);
        padding-left: var(--spacing-md);
    }

    .menu-toggle {
        display: block;
    }

    .content-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .hero-feature-card {
        margin: var(--spacing-xl) auto 0;
    }
}

@media (max-width: 600px) {
    .hero-meta {
        flex-direction: column;
    }

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