*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#f4fbef;--surface:#fff;--soft:#e4f5d8;--text:#182315;--muted:#62705c;--brand:#6fbd35;--brand-dark:#3f8f1f;--gold:#a8df62;--accent:#5baa2f;--line:rgba(63,143,31,.16);--shadow:0 24px 70px rgba(54,115,32,.14);--radius-lg:28px}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;line-height:1.7;color:var(--text);background:radial-gradient(circle at 15% 10%,rgba(137,213,83,.24),transparent 30%),radial-gradient(circle at 85% 0%,rgba(91,170,47,.16),transparent 32%),var(--bg)}
a{color:inherit;text-decoration:none}
header{position:sticky;top:0;z-index:100;padding:16px 20px;background:rgba(244,251,239,.84);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.navbar{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative}
.logo{display:flex;align-items:center;gap:10px;color:var(--brand-dark);font-size:1.35rem;font-weight:900;letter-spacing:.08em}
.logo:before{content:"";width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand-dark),var(--gold));box-shadow:0 10px 22px rgba(95,174,48,.28)}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none;padding:8px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.68)}
.nav-links a{display:block;padding:9px 18px;border-radius:999px;color:var(--muted);font-size:.96rem;font-weight:700;transition:.25s ease}
.nav-links a:hover,.nav-links a.active{color:#fff;background:var(--brand-dark);box-shadow:0 12px 24px rgba(63,143,31,.22)}
.menu-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;width:40px;height:40px;padding:0;border:0;border-radius:8px;background:transparent;cursor:pointer;gap:5px}
.menu-toggle span{width:24px;height:2px;background:var(--brand-dark);border-radius:2px;transition:.3s ease}
.menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.nav-links.active{display:flex}
main{overflow:hidden}
.hero{max-width:1180px;margin:38px auto 0;padding:0 20px}
.hero-content{position:relative;min-height:610px;display:grid;align-content:center;padding:72px;overflow:hidden;border-radius:38px;background:linear-gradient(110deg,rgba(24,62,20,.76),rgba(24,62,20,.18)),linear-gradient(135deg,#3f8f1f,#8bd94f 52%,#e6f8d6);box-shadow:var(--shadow)}
.hero-content:after{content:"";position:absolute;right:7%;bottom:-10%;width:360px;height:500px;border-radius:180px 180px 36px 36px;background:linear-gradient(rgba(255,255,255,.14),rgba(255,255,255,.03)),repeating-linear-gradient(90deg,rgba(63,143,31,.25) 0 16px,rgba(255,255,255,.14) 16px 34px);border:1px solid rgba(255,255,255,.28);transform:rotate(7deg)}
.hero h1{position:relative;z-index:1;max-width:650px;color:#fff;font-size:clamp(2.6rem,7vw,5.8rem);line-height:1.02;letter-spacing:-.08em}
.hero p{position:relative;z-index:1;max-width:560px;margin:24px 0 34px;color:rgba(255,255,255,.86);font-size:1.2rem}
.cta-button,.product-btn,.filter-btn{border:0;cursor:pointer;font-family:inherit}
.cta-button{position:relative;z-index:1;width:fit-content;padding:15px 28px;border-radius:999px;color:var(--brand-dark);background:#fff;font-size:1rem;font-weight:900;box-shadow:0 18px 34px rgba(0,0,0,.18);transition:.25s ease}
.cta-button:hover{transform:translateY(-3px);background:#f2ffe8}
.features,.preview,.products,.about-content{max-width:1180px;margin:0 auto;padding:88px 20px 0}
.features h2,.preview h2,.about-section h2{margin-bottom:28px;color:var(--brand-dark);font-size:clamp(1.9rem,3.5vw,3rem);line-height:1.15;letter-spacing:-.04em}
.feature-grid,.preview-grid,.mission-grid,.team-grid,.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.feature-card,.preview-card,.mission-card,.team-card,.product-card,.about-section,.timeline-content{border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.8);box-shadow:0 16px 44px rgba(54,115,32,.08)}
.feature-card,.mission-card,.team-card{padding:28px;transition:.25s ease}
.feature-card:hover,.mission-card:hover,.team-card:hover,.product-card:hover,.preview-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.feature-icon,.mission-icon{width:58px;height:58px;display:grid;place-items:center;margin-bottom:22px;border-radius:20px;background:var(--soft);font-size:1.8rem}
.feature-card h3,.preview-card h3,.mission-card h3,.team-card h3,.product-card h3,.timeline-content h3{margin-bottom:8px;color:var(--text);font-size:1.18rem}
.feature-card p,.preview-card p,.mission-card p,.team-desc,.product-desc,.timeline-content p,.about-section p{color:var(--muted)}
.preview-grid,.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.preview-card,.product-card{overflow:hidden;transition:.25s ease}
.preview-image,.product-image,.team-avatar{min-height:220px;background-size:cover;background-position:center}
.preview-card h3,.preview-card p{padding:0 24px}
.preview-card h3{padding-top:24px}
.preview-card p{padding-bottom:26px}
.product-filters{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.filter-btn{padding:11px 20px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:rgba(255,255,255,.76);font-weight:800;transition:.22s ease}
.filter-btn:hover,.filter-btn.active{color:#fff;background:var(--accent)}
.gallery-shell{display:grid;gap:22px}
.gallery-preview{display:block;overflow:hidden;border:1px solid var(--line);border-radius:38px;background:transparent;box-shadow:var(--shadow)}
.gallery-preview img,.gallery-preview canvas{display:block;width:100%;height:auto;max-height:150vh;object-fit:contain}
.gallery-empty{max-width:580px;padding:42px;text-align:center}
.gallery-empty h2{margin-bottom:12px;color:var(--brand-dark);font-size:clamp(1.8rem,4vw,3rem);line-height:1.15}
.gallery-empty p{color:var(--muted)}
.gallery-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:18px 20px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.72)}
.nav-gallery-toolbar{flex:1;min-width:0;justify-content:flex-end;gap:10px;padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.62)}
.nav-gallery-toolbar .product-filters{justify-content:flex-end;flex-wrap:nowrap;gap:6px;margin-bottom:0;overflow-x:auto;scrollbar-width:none}
.nav-gallery-toolbar .product-filters::-webkit-scrollbar{display:none}
.nav-gallery-toolbar .filter-btn{flex:0 0 auto;padding:7px 12px;font-size:.86rem}
.nav-gallery-toolbar #galleryCount{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.86rem}
@media (max-width:980px){.navbar{gap:10px}.logo{flex:0 0 auto;font-size:1.05rem}.nav-links{flex:0 0 auto;gap:4px;padding:5px}.nav-links a{padding:7px 10px;font-size:.84rem}.nav-gallery-toolbar{min-width:180px;overflow:hidden}.nav-gallery-toolbar #galleryCount{max-width:72px}}
#galleryCount{color:var(--muted);font-weight:800}
.masonry-gallery{column-count:6;column-gap:14px}
.masonry-item{position:relative;width:100%;break-inside:avoid;margin-bottom:18px;overflow:hidden;border:3px solid transparent;border-radius:22px;background:#fff;box-shadow:0 14px 34px rgba(54,115,32,.12);cursor:pointer;transition:.22s ease;text-align:left}
.masonry-item:hover,.masonry-item.active{border-color:var(--brand);transform:translateY(-4px)}
.masonry-item img{display:block;width:100%;height:auto}
.masonry-name{display:none}
.load-more-btn{width:100%;margin:28px 0;padding:14px;border:0;border-radius:12px;color:var(--brand-dark);background:var(--soft);font-size:1rem;font-weight:700;cursor:pointer;transition:.25s ease}
.load-more-btn:hover{background:var(--brand);color:#fff}

/* ====== 手机端产品展示 ====== */
.mobile-feed{display:none}
@media (max-width:680px){
  .mobile-mode{background:#000;color:#fff;overflow:hidden}
  .mobile-mode .page-header,.mobile-mode footer,.mobile-mode .gallery-preview,.mobile-mode .masonry-gallery{display:none}
  .mobile-mode .products{max-width:none;width:100%;height:100vh;padding:0}
  .mobile-mode .gallery-shell{height:100vh;gap:0}
  .mobile-mode .gallery-toolbar{position:fixed;top:56px;left:10px;right:10px;z-index:20;padding:8px;border:0;border-radius:999px;background:rgba(0,0,0,.22);backdrop-filter:blur(14px)}
  .mobile-mode .gallery-toolbar .product-filters{width:100%;margin:0;justify-content:flex-start;flex-wrap:nowrap;gap:8px;overflow-x:auto}
  .mobile-mode .gallery-toolbar .filter-btn{flex:0 0 auto;padding:8px 14px;border:1px solid rgba(255,255,255,.22);color:#fff;background:rgba(255,255,255,.16);font-size:.86rem}
  .mobile-mode .gallery-toolbar .filter-btn.active{background:var(--brand);border-color:var(--brand)}
  .mobile-mode #galleryCount{display:none}
  .mobile-mode .mobile-feed{display:block;height:100vh;overflow-y:auto;background:#000}
  .mobile-mode .mobile-feed-item{position:relative;width:100%;background:#000;overflow:hidden}
  .mobile-mode .mobile-feed-item img{display:block;width:100%;height:auto;object-fit:contain}
  .mobile-mode .mobile-feed-empty{height:100vh;display:grid;place-items:center;padding:28px;text-align:center;background:linear-gradient(135deg,#163312,#000)}
}

/* ====== 桌面端通用 ====== */
@media (max-width:920px){.feature-grid,.preview-grid,.product-grid,.mission-grid,.team-grid,.footer-content{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-content{min-height:520px;padding:46px}}

/* ====== 手机端导航 ====== */
@media (max-width:680px){
  header{padding:12px}
  .menu-toggle{display:flex}
  .nav-links{position:absolute;top:100%;right:0;left:0;flex-direction:column;gap:0;padding:12px;border:0;border-radius:0;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12);opacity:0;visibility:hidden;transform:translateY(-10px);transition:.3s ease;z-index:99}
  .nav-links.active{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{width:100%;padding:14px 20px;border-radius:8px;text-align:left}
  .navbar{gap:16px}
  .hero{margin-top:18px}
  .hero-content{min-height:auto;padding:42px 26px;border-radius:28px}
  .hero-content:after{display:none}
  .feature-grid,.preview-grid,.product-grid,.mission-grid,.team-grid,.footer-content{grid-template-columns:1fr}
  .features,.preview,.products,.about-content{padding-top:58px}
  .timeline-item{grid-template-columns:1fr}
}

/* ====== 关于我们页面 ====== */
.page-header{max-width:1180px;margin:0 auto;padding:68px 20px 48px;text-align:center}
.page-header h1{color:var(--brand-dark);font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;letter-spacing:-.04em;margin-bottom:18px}
.page-header p{max-width:640px;margin:0 auto;color:var(--muted);font-size:clamp(1rem,2vw,1.25rem);line-height:1.7}
.about-content{display:grid;gap:28px}
.about-section{padding:34px}
.about-section>p+p{margin-top:12px}
.mission-grid,.team-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.team-avatar{min-height:180px;margin:-28px -28px 22px;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.team-role{margin-bottom:8px;color:var(--brand);font-weight:900}
.timeline{display:grid;gap:18px}
.timeline-item{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:start}
.timeline-year{padding:12px 16px;border-radius:999px;color:#fff;background:var(--brand);text-align:center;font-weight:900}
.timeline-content{padding:20px 24px}
footer{margin-top:92px;color:rgba(255,255,255,.84);background:#173312}
.footer-content{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px;padding:54px 20px}
.footer-section h3{margin-bottom:12px;color:#fff}
.footer-bottom{padding:18px 20px;border-top:1px solid rgba(255,255,255,.1);text-align:center}
@media (max-width:680px){
  .mission-grid,.team-grid{grid-template-columns:1fr}
  .page-header{padding:44px 18px 26px}
  .about-content{padding:36px 16px 0;gap:20px}
  .about-section{padding:22px;border-radius:22px}
  .about-section h2{margin-bottom:18px}
  .mission-card,.team-card{padding:22px;border-radius:22px}
  .team-avatar{min-height:130px;margin:-22px -22px 18px;border-radius:22px 22px 0 0}
  .timeline{gap:14px}
  .timeline-item{grid-template-columns:1fr;gap:10px}
  .timeline-year{width:fit-content}
  .timeline-content{padding:18px;border-radius:20px}
  .footer-content{grid-template-columns:1fr;padding:36px 20px}
}