/* =========================================

   头部、巨幕与底部专属样式

   ========================================= */

.ff-topbar { background: #f5f5f5; border-bottom: 1px solid #e5e5e5; font-size: 12px; color: #666; padding: 8px 0; }

.ff-topbar a { color: #666; text-decoration: none; }

.ff-topbar a:hover { color: var(--brand); }

.ff-header { background: #fff; padding: 16px 0; border-bottom: 2px solid var(--brand); }

.ff-logo { font-size: 28px; font-weight: 900; color: var(--brand); cursor: pointer; letter-spacing: -1px; }



.ff-header .container { position: relative; }

.ff-nav-link { font-size: 16px; color: #333; text-decoration: none; font-weight: 600; transition: color 0.2s; display: flex; align-items: center; height: 100%; }

.ff-nav-link:hover, .ff-nav-link.active { color: var(--brand); }

.ff-nav-link.active { position: relative; }

.ff-nav-link.active::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 100%; height: 2px; background: var(--brand); border-radius: 2px; }



.ff-dropdown-wrapper { position: static; height: 100%; display: flex; align-items: center; }

.ff-mega-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(20px); width: 900px; background: #ffffff; border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.03); padding: 24px 32px; opacity: 0; visibility: hidden; transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1); z-index: 1050; display: none; }

.ff-dropdown-wrapper:hover .ff-mega-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); display: block; }



.ff-mega-left { width: 180px; flex-shrink: 0; display: flex; flex-direction: column; gap: 12px; }

.ff-mega-card { width: 100%; height: 110px; border-radius: 12px; display: flex; flex-direction: column; justify-content: center; padding-left: 20px; color: #fff; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }

.ff-mega-card:hover { transform: translateY(-2px); }

.ff-mega-card.card-spring { background: linear-gradient(135deg, #FF0036 0%, #FF7300 100%) !important; box-shadow: 0 4px 12px rgba(255,0,54,0.2) !important; }

.ff-mega-card.card-digital { background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%) !important; box-shadow: 0 4px 12px rgba(59,130,246,0.2) !important; }

.ff-mega-card .title { font-size: 16px; font-weight: 800; margin-bottom: 6px; }

.ff-mega-card .sub { font-size: 13px; opacity: 0.9; }



.ff-mega-right { padding-left: 10px; }

.ff-mega-title { font-size: 14px; font-weight: 800; color: #333; margin-bottom: 12px; position: relative; padding-left: 10px; border-left: none !important; }

.ff-mega-title::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 12px; background: var(--brand); border-radius: 2px; }

.ff-mega-title::after { display: none !important; }

.ff-mega-link { display: flex; align-items: center; color: #6B7280; text-decoration: none; font-size: 13px; margin-bottom: 8px; transition: all 0.2s ease; }

.ff-mega-link:hover { color: var(--brand); transform: translateX(4px); }

.ff-tag-hot { font-size: 10px; color: #fff; background: var(--brand); padding: 1px 4px; border-radius: 4px; margin-left: 6px; font-weight: normal; }



.ff-btn-login { display: inline-flex; align-items: center; justify-content: center; padding: 6px 16px; border-radius: 20px; border: 1.5px solid var(--brand); color: var(--brand); font-size: 14px; font-weight: 600; text-decoration: none; transition: all 0.2s; }

.ff-btn-login:hover { background: var(--brand); color: #fff; }



.ff-footer { background: #fff; border-top: 1px solid #e5e5e5; }

.ff-footer h6 { color: #333; font-size: 15px; }

.ff-footer-list { padding-left: 0; margin-bottom: 0; }

.ff-footer-list li { text-align: center; margin-bottom: 8px; }

.ff-footer-list a { color: #666; font-size: 13px; text-decoration: none; transition: color 0.2s; }

.ff-footer-list a:hover { color: var(--brand); }

.ff-footer-bottom { background: #f8f9fa; color: #666; font-size: 13px; }