* { box-sizing: border-box; margin: 0; padding: 0; }
body.butter-body { background-color: #f7f9fb; color: #333333; font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif; overflow-x: hidden; width: 100%; }
a { color: inherit; text-decoration: none; }
.butter-container { max-width: 1200px; margin: 0 auto; padding: 0 15px; width: 100%; }
.butter-topbar { background-color: #ffffff; color: #666666; font-size: 12px; height: 32px; line-height: 32px; border-bottom: 1px solid #f0f0f0; }
.butter-topbar-wrap { display: flex; justify-content: flex-end; }
.butter-header { background: #ffffff; border-bottom: 2px solid #3cb371; height: 70px; position: relative; z-index: 100; }
.butter-nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.butter-logo img { max-height: 45px; max-width: 180px; object-fit: contain; }
.butter-nav { display: flex; list-style: none; align-items: center; height: 100%; }
.butter-nav-item a { display: block; padding: 0 18px; height: 70px; line-height: 70px; font-size: 15px; color: #333333; font-weight: 500; transition: all 0.3s; }
.butter-nav-item a:hover { color: #3cb371; background-color: #f0fbf4; }
.butter-notice { background: #ffffff; border-left: 4px solid #3cb371; border-radius: 4px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); margin: 20px auto; padding: 12px 20px; font-size: 14px; color: #555555; }
.butter-sec-title { font-size: 20px; font-weight: 700; color: #111111; margin: 30px 0 15px; padding-left: 12px; border-left: 4px solid #3cb371; }
.butter-about-grid { display: grid; grid-template-columns: 1.2fr 2fr; gap: 20px; margin-bottom: 30px; }
@media (max-width: 768px) { .butter-about-grid { grid-template-columns: 1fr; } }
.butter-about-left { background: #ffffff; border: 1px solid #eef2f6; border-radius: 8px; padding: 20px; display: flex; flex-direction: column; justify-content: space-between; }
.butter-about-right { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
@media (max-width: 768px) { .butter-about-right { grid-template-columns: 1fr; } }
.butter-about-card { background: #ffffff; border: 1px solid #eef2f6; border-radius: 6px; padding: 20px; text-align: center; display: flex; flex-direction: column; justify-content: space-between; }
.butter-prod-grid { display: grid; grid-template-columns: 2.2fr 1fr; gap: 20px; margin-bottom: 30px; }
@media (max-width: 768px) { .butter-prod-grid { grid-template-columns: 1fr; } }
.butter-prod-subgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.butter-card { background: #ffffff; border: 1px solid #eef2f6; border-radius: 8px; padding: 15px; transition: all 0.3s; display: flex; flex-direction: column; justify-content: space-between; }
.butter-card:hover { border-color: #3cb371; box-shadow: 0 6px 16px rgba(60,179,113,0.08); }
.butter-card-top { display: flex; align-items: center; margin-bottom: 10px; }
.butter-card-img { width: 36px; height: 36px; max-width: 36px; max-height: 36px; object-fit: contain; margin-right: 10px; flex-shrink: 0; }
.butter-card-title { font-size: 14px; font-weight: 600; color: #222222; word-break: break-all; }
.butter-adv-wrap { display: grid; grid-template-columns: 1fr 1.8fr; gap: 20px; margin-bottom: 30px; background: #ffffff; padding: 20px; border-radius: 8px; border: 1px solid #e9ecef; }
@media (max-width: 768px) { .butter-adv-wrap { grid-template-columns: 1fr; } }
.butter-adv-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px dashed #eee; }
.butter-adv-item:last-child { border-bottom: none; }
.butter-adv-badge { width: 22px; height: 22px; border-radius: 50%; background: #3cb371; color: #ffffff; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; margin-right: 10px; }
.butter-case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 30px; }
@media (max-width: 768px) { .butter-case-grid { grid-template-columns: repeat(2, 1fr); } }
.butter-three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 30px; }
@media (max-width: 768px) { .butter-three-col { grid-template-columns: 1fr; } }
.butter-list-card { background: #ffffff; border: 1px solid #eef2f6; border-radius: 6px; padding: 20px; }
.butter-list-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px dashed #eee; }
.butter-list-item:last-child { border-bottom: none; }
.butter-table { width: 100%; border-collapse: collapse; background: #ffffff; border-radius: 6px; overflow: hidden; margin-bottom: 30px; }
.butter-table th, .butter-table td { padding: 12px 15px; text-align: left; border-bottom: 1px solid #f0f0f0; font-size: 14px; }
.butter-table th { background: #f0fbf4; color: #3cb371; font-weight: 600; }
.butter-btn { background: #3cb371; color: #ffffff; padding: 6px 16px; border-radius: 4px; font-size: 13px; font-weight: 500; display: inline-block; border: none; cursor: pointer; transition: background 0.3s; }
.butter-btn:hover { background: #2e8b57; }
.butter-price { color: #d9232e; font-weight: bold; font-size: 18px; }
.butter-footer { background: #2a2e35; color: #a0aab0; padding: 40px 0 20px; margin-top: 50px; text-align: center; font-size: 14px; }
.butter-footer-links a { color: #d0d7de; margin: 0 10px; }
.butter-footer-sep { color: #495057; }
.butter-copyright { margin-top: 20px; font-size: 13px; color: #6c757d; }
.butter-badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.butter-badge-auto { background: #f0fbf4; color: #3cb371; }
.butter-badge-manual { background: #f5f5f5; color: #616161; }
.butter-detail-wrap { background: #ffffff; border-radius: 6px; padding: 30px; margin: 30px auto; border: 1px solid #e9ecef; }