/* =====================================================================
   果然生物科技 · 爱柚乐柚子饮料官网  —  主题样式
   视觉风格继承原「爱柚乐」站点：柚子绿主色 #14502f + 柚黄点缀
   ===================================================================== */

:root {
    --green:      #14502f;   /* 柚子叶绿（主色） */
    --green-2:    #1d6b40;
    --green-3:    #2a8a55;
    --green-soft: #e8f3ec;
    --accent:     #f4a300;   /* 柚黄（点缀/强调） */
    --accent-2:   #a4c639;   /* 青柠（辅助） */
    --text:       #2b2f2c;
    --muted:      #6b7280;
    --line:       #e6eae6;
    --bg-soft:    #f6f9f5;
    --white:      #ffffff;
    --radius:     14px;
    --shadow:     0 8px 30px rgba(20, 80, 47, .10);
    --shadow-sm:  0 4px 14px rgba(20, 80, 47, .08);
    --container:  1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    font-size: 15px;
}

a { color: var(--green-2); text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4 { color: var(--green); line-height: 1.3; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: .2s;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: #3a2a00; }
.btn-primary:hover { background: #ffb31a; color: #3a2a00; transform: translateY(-2px); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: var(--green-3); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1.5px solid #fff; color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ---------- 顶部信息条 ---------- */
.top-bar { background: var(--green); color: rgba(255,255,255,.85); font-size: 13px; }
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; flex-wrap: wrap; gap: 6px; }
.top-bar b { color: var(--accent); }
.top-bar-right span { margin-left: 18px; }

/* ---------- 主导航 ---------- */
.site-header { background: #fff; box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
.site-header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { flex: 0 0 auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 19px; color: var(--green); letter-spacing: 1px; }
.brand-text em { font-style: normal; font-size: 12px; color: var(--muted); letter-spacing: 2px; }

.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
    padding: 10px 16px;
    color: var(--text);
    font-weight: 600;
    border-radius: 8px;
    transition: .2s;
}
.site-nav a:hover { color: var(--green); background: var(--green-soft); }
.site-nav a.active { color: var(--green); background: var(--green-soft); }
.site-nav a.nav-cta { background: var(--green); color: #fff; }
.site-nav a.nav-cta:hover { background: var(--green-3); color: #fff; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--green); border-radius: 2px; transition: .3s; }

/* ---------- 首页 Hero 轮播 ---------- */
.hero { position: relative; height: 620px; overflow: hidden; background: var(--green); }
.hero-track { position: absolute; inset: 0; }
.hero-slide {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0; transform: scale(1.06);
    filter: brightness(1.06) saturate(1.1);
    transition: opacity 1s ease, transform 7s linear;
}
.hero-slide.active { opacity: 1; transform: scale(1); }
.hero-slide::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(10,40,24,.50) 0%, rgba(10,40,24,.18) 42%, rgba(10,40,24,0) 72%);
}
.hero-caption {
    position: absolute; z-index: 3; left: 8%; top: 50%; transform: translateY(-50%);
    color: #fff; max-width: 620px;
}
.hero-caption .eyebrow { display: inline-block; background: var(--accent); color: #3a2a00; font-weight: 700; padding: 5px 14px; border-radius: 999px; font-size: 13px; margin-bottom: 16px; }
.hero-caption h1 { color: #fff; font-size: clamp(30px, 4.6vw, 56px); font-weight: 800; margin-bottom: 14px; text-shadow: 0 2px 16px rgba(0,0,0,.35); }
.hero-caption p { font-size: clamp(15px, 1.7vw, 20px); color: rgba(255,255,255,.92); margin-bottom: 26px; }
.hero-caption .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 4;
    width: 46px; height: 46px; border-radius: 50%; border: none;
    background: rgba(255,255,255,.22); color: #fff; font-size: 24px; cursor: pointer; transition: .2s;
}
.hero-arrow:hover { background: rgba(255,255,255,.42); }
.hero-prev { left: 18px; }
.hero-next { right: 18px; }
.hero-dots { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 4; display: flex; gap: 10px; }
.hero-dot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.45); cursor: pointer; transition: .2s; border: none; padding: 0; }
.hero-dot.on { background: #fff; width: 26px; border-radius: 6px; }

/* ---------- 通用区块 ---------- */
.section { padding: 72px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.section-head .kicker { color: var(--accent); font-weight: 700; letter-spacing: 3px; font-size: 13px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(24px, 3vw, 36px); margin: 8px 0 10px; }
.section-head p { color: var(--muted); }

/* ---------- 首页：关于预览 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.about-text h2 { font-size: 30px; }
.about-text .lead { color: var(--muted); }
.about-stats { display: flex; gap: 26px; margin-top: 26px; flex-wrap: wrap; }
.about-stats .stat strong { display: block; font-size: 30px; color: var(--green); }
.about-stats .stat span { color: var(--muted); font-size: 13px; }
.feature-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.feature-list li { padding-left: 30px; position: relative; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; background: var(--green-soft); color: var(--green); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    overflow: hidden; transition: .25s; display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.product-media { background: var(--green-soft); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-media img { max-height: 100%; width: auto; object-fit: contain; padding: 18px; transition: .3s; }
.product-card:hover .product-media img { transform: scale(1.05); }
.product-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-cat { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 1px; }
.product-body h3 { font-size: 18px; margin: 0; color: var(--text); }
.product-summary { color: var(--muted); font-size: 14px; margin: 0; flex: 1; }
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.product-tags span { font-size: 12px; background: var(--green-soft); color: var(--green-2); padding: 3px 10px; border-radius: 999px; }
.product-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; }
.product-price { color: var(--accent); font-weight: 800; font-size: 18px; }
.product-link { font-size: 14px; font-weight: 600; }

/* ---------- 新闻卡片 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .25s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.news-media { aspect-ratio: 16/10; overflow: hidden; }
.news-media img { width: 100%; height: 100%; object-fit: cover; transition: .3s; }
.news-card:hover .news-media img { transform: scale(1.06); }
.news-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.news-meta { font-size: 12px; color: var(--muted); display: flex; gap: 12px; }
.news-meta .cat { color: var(--accent); font-weight: 700; }
.news-body h3 { font-size: 17px; margin: 0; color: var(--text); line-height: 1.45; }
.news-body p { color: var(--muted); font-size: 14px; margin: 0; flex: 1; }
.news-more { font-weight: 600; font-size: 14px; }

/* ---------- 招商 CTA 横幅 ---------- */
.cta-banner {
    background: linear-gradient(120deg, var(--green) 0%, var(--green-3) 100%);
    border-radius: var(--radius); padding: 54px 48px; color: #fff;
    display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-banner h2 { color: #fff; font-size: 30px; margin: 0 0 8px; }
.cta-banner p { color: rgba(255,255,255,.9); margin: 0; max-width: 620px; }

/* ---------- 子页 Banner ---------- */
.page-banner {
    height: 450px; background-size: cover; background-position: center; position: relative;
    display: flex; align-items: center; color: #fff;
}
.page-banner::after { content: ""; position: absolute; inset: 0; background: rgba(10,40,24,.55); }
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { color: #fff; font-size: 40px; margin: 0; }
.page-banner .sub { color: rgba(255,255,255,.85); letter-spacing: 3px; }

/* ---------- 滚动揭示特效（首页 + 子页面区域，对标参考站点的进入动画） ---------- */
/* 仅在 JS 可用时隐藏，保证无 JS 时内容正常显示（渐进增强） */
/* 明显版「从下往上」：位移加大到 72px + 淡入 + 强缓出，出现更醒目 */
.js [data-reveal] {
    opacity: 0;
    transform: translateY(72px);
    will-change: opacity, transform;
    transition: opacity .7s ease, transform 1s cubic-bezier(.16,1,.3,1);
}
.js [data-reveal="up"],
.js [data-reveal="left"],
.js [data-reveal="right"],
.js [data-reveal="zoom"],
.js [data-reveal="fade"] { transform: translateY(72px); }
.js [data-reveal].in-view { opacity: 1 !important; transform: none !important; }

/* 网格内的揭示包裹层：让卡片在揭示动画期间仍等高等宽，并额外加缩放让出现更明显 */
.product-grid > [data-reveal],
.news-grid > [data-reveal] {
    display: flex;
    transform: translateY(72px) scale(.92);
}
.product-grid > [data-reveal] > .product-card,
.news-grid > [data-reveal] > .news-card { width: 100%; }

@media (prefers-reduced-motion: reduce) {
    .js [data-reveal] { opacity: 1 !important; transform: none !important; transition: none; }
}

/* ---------- 产品列表 / 详情 ---------- */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.detail-media { background: var(--green-soft); border-radius: var(--radius); padding: 40px; display: flex; align-items: center; justify-content: center; }
.detail-media img { max-height: 420px; width: auto; }
.detail-info h1 { font-size: 30px; }
.detail-meta { display: flex; gap: 24px; flex-wrap: wrap; margin: 14px 0 20px; color: var(--muted); }
.detail-meta b { color: var(--green); }
.detail-price { font-size: 28px; color: var(--accent); font-weight: 800; margin: 10px 0 20px; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.detail-tags span { background: var(--green-soft); color: var(--green-2); padding: 5px 14px; border-radius: 999px; font-size: 13px; }

/* ---------- 新闻详情 ---------- */
.news-detail-wrap { max-width: 820px; margin: 0 auto; }
.news-detail-wrap .news-meta { justify-content: flex-start; margin-bottom: 16px; }
.news-cover { border-radius: var(--radius); overflow: hidden; margin: 24px 0; }
.news-content { font-size: 16px; line-height: 1.9; color: #333; }
.news-content p { white-space: pre-line; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-weight: 600; color: var(--green); font-size: 14px; }
.form-group .req { color: #e23b3b; }
.form-control {
    width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px;
    font-size: 15px; font-family: inherit; background: #fff; transition: .2s; color: var(--text);
}
.form-control:focus { outline: none; border-color: var(--green-3); box-shadow: 0 0 0 3px var(--green-soft); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); }
.alert { padding: 14px 18px; border-radius: 10px; margin-bottom: 20px; font-weight: 600; }
.alert-success { background: var(--green-soft); color: var(--green-2); border: 1px solid #bfe3cd; }
.alert-error { background: #fdecec; color: #c0392b; border: 1px solid #f5c2c2; }

/* ---------- 招商职位 ---------- */
.job-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.job-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: .2s; }
.job-card:hover { box-shadow: var(--shadow); border-color: transparent; }
.job-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.job-head h3 { margin: 0 0 4px; font-size: 20px; }
.job-salary { color: var(--accent); font-weight: 800; white-space: nowrap; }
.job-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.job-tags span { font-size: 12px; background: var(--green-soft); color: var(--green-2); padding: 4px 12px; border-radius: 999px; }
.job-card p { color: var(--muted); font-size: 14px; }
.job-req { white-space: pre-line; color: var(--muted); font-size: 14px; background: var(--bg-soft); padding: 12px 14px; border-radius: 10px; }

/* ---------- 联系信息卡 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.info-list li { display: flex; gap: 14px; align-items: flex-start; }
.info-list .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--green-soft); color: var(--green); display: flex; align-items: center; justify-content: center; font-size: 20px; flex: 0 0 auto; }
.info-list b { color: var(--green); display: block; font-size: 14px; }
.info-list span { color: var(--muted); }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }

/* ---------- 页脚 ---------- */
.site-footer { background: #0f3a23; color: rgba(255,255,255,.75); margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.6fr; gap: 40px; padding: 54px 20px 40px; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 16px; }
.footer-col p { font-size: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col ul a { color: rgba(255,255,255,.78); }
.footer-col ul a:hover { color: var(--accent); }
.footer-contact li { color: rgba(255,255,255,.7) !important; font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom .container { display: flex; justify-content: space-between; padding: 16px 20px; font-size: 13px; color: rgba(255,255,255,.55); flex-wrap: wrap; gap: 6px; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .product-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid, .product-detail, .contact-grid { grid-template-columns: 1fr; gap: 30px; }
    .job-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .top-bar-inner { height: auto; padding: 6px 0; font-size: 12px; }
    .top-bar-right span { margin-left: 0; display: block; }
    .nav-toggle { display: flex; }
    .site-nav {
        position: absolute; top: 76px; left: 0; right: 0; background: #fff;
        flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0;
        box-shadow: var(--shadow); display: none;
    }
    .site-nav.open { display: flex; }
    .site-nav a { padding: 14px 20px; border-radius: 0; }
    .hero { height: 460px; }
    .hero-caption { left: 6%; right: 6%; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .form-grid { grid-template-columns: 1fr; }
    .product-grid, .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-banner { padding: 36px 24px; }
    .section { padding: 52px 0; }
}