/* ======================================== Section Common Styles ======================================== */
.section-header { margin-bottom: 45px; text-align: center; }
.section-badge { align-items: center; background: rgba(54, 105, 239, 0.1); border-radius: 20px; color: var(--brand-blue); display: inline-flex; font-size: 13px; font-weight: 500; gap: 8px; margin-bottom: 10px; padding: 8px 16px; }
.section-title { color: var(--brand-black); font-size: clamp(28px, 4vw, 36px); font-weight: 700; margin-bottom: 8px; }
.section-subtitle { color: var(--brand-blue); font-size: 16px; font-weight: 500; }
/****************************************合作****************************************/
/* ======================================== Hero Section ======================================== */
.herocooperate { align-items: center; background: linear-gradient(135deg, #1A1A2E 0%, #16213E 50%, #0F3460 100%); display: flex; justify-content: center; min-height: 55vh; overflow: hidden; position: relative; }
.herocooperate-bg { inset: 0; position: absolute; z-index: 0; }
.herocooperate-bg::before { background-image: radial-gradient(circle at 20% 50%, rgba(54, 105, 239, 0.3) 0%, transparent 50%), radial-gradient(circle at 80% 80%, rgba(90, 140, 247, 0.2) 0%, transparent 50%); content: ""; inset: 0; position: absolute; }
.herocooperate-overlay { background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6)); inset: 0; position: absolute; }
.herocooperate-content { margin: 0 auto; max-width: 1280px; padding: 140px 24px 80px; position: relative; text-align: center; width: 100%; z-index: 2; }
.herocooperate-badge { align-items: center; animation: slideUp 0.8s ease-out 0.2s both; backdrop-filter: blur(8px); background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 24px; display: inline-flex; gap: 8px; margin-bottom: 32px; padding: 8px 16px; }
.herocooperate-badge span { color: rgba(255, 255, 255, 0.9); font-size: 14px; }
.herocooperate-title { margin-bottom: 24px; }
.herocooperate-title h1 { animation: slideUp 0.8s ease-out 0.4s both; color: var(--brand-white); font-size: clamp(36px, 6vw, 56px); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.herocooperate-subtitle { animation: slideUp 0.8s ease-out 0.5s both; color: rgba(255, 255, 255, 0.8); display: block; font-size: clamp(24px, 4vw, 36px); font-weight: 300; }
.herocooperate-description { animation: slideUp 0.8s ease-out 0.6s both; color: rgba(255, 255, 255, 0.7); font-size: 18px; line-height: 1.7; margin: 0 auto 40px; max-width: 700px; }
.btn-primary { align-items: center; animation: slideUp 0.8s ease-out 0.7s both; background: var(--brand-blue); border-radius: 28px; color: var(--brand-white); display: inline-flex; font-size: 16px; font-weight: 500; gap: 8px; padding: 14px 28px; transition: all var(--transition-normal); }
.btn-primary:hover { box-shadow: 0 10px 30px rgba(54, 105, 239, 0.4); transform: scale(1.05); }
.btn-primary svg { transition: transform var(--transition-fast); }
.btn-primary:hover svg { transform: translateX(4px); }
@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
/* ======================================== Collaboration Section ======================================== */
.collaboration-section { background: var(--brand-white); overflow: hidden; padding: 100px 0; position: relative; }
.collaboration-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); }
.collaboration-card { background: var(--brand-white); border: 1px solid var(--brand-gray3); border-radius: 20px; box-shadow: var(--shadow-md); padding: 40px 32px; transition: all var(--transition-slow); }
.collaboration-card:hover { border-color: var(--brand-blue); box-shadow: var(--shadow-xl); transform: translateY(-8px); }
.collaboration-icon { align-items: center; background: linear-gradient(135deg, rgba(54, 105, 239, 0.1), rgba(90, 140, 247, 0.1)); border-radius: 16px; color: var(--brand-blue); display: flex; height: 64px; justify-content: center; margin-bottom: 24px; transition: all var(--transition-normal); width: 64px; }
.collaboration-card:hover .collaboration-icon { background: var(--brand-blue); color: var(--brand-white); transform: scale(1.1); }
.collaboration-card h3 { color: var(--brand-black); font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.collaboration-card > p { color: var(--brand-gray1); font-size: 15px; line-height: 1.7; margin-bottom: 24px; }
.collaboration-features { display: flex; flex-direction: column; gap: 12px; }
.collaboration-features li { align-items: center; color: var(--brand-gray1); display: flex; font-size: 14px; gap: 10px; }
.collaboration-features li::before { background: var(--brand-blue); border-radius: 50%; content: ""; flex-shrink: 0; height: 6px; width: 6px; }
/* ======================================== Process Section ======================================== */
.process-section { background: var(--brand-gray2); overflow: hidden; padding: 100px 0; position: relative; }
.process-section::before { background: linear-gradient(to right, transparent, var(--brand-gray3), transparent); content: ""; height: 1px; left: 0; position: absolute; right: 0; top: 0; }
.process-steps { display: flex; gap: 24px; justify-content: space-between; position: relative; }
.process-steps::before { background: linear-gradient(to right, var(--brand-blue), var(--brand-blue-light)); content: ""; height: 2px; left: 60px; position: absolute; right: 60px; top: 40px; z-index: 0; }
.process-step { flex: 1; position: relative; text-align: center; z-index: 1; }
.step-number { align-items: center; background: var(--brand-white); border: 3px solid var(--brand-blue); border-radius: 50%; box-shadow: var(--shadow-lg); color: var(--brand-blue); display: flex; font-size: 28px; font-weight: 700; height: 80px; justify-content: center; margin: 0 auto 24px; transition: all var(--transition-normal); width: 80px; }
.process-step:hover .step-number { background: var(--brand-blue); color: var(--brand-white); transform: scale(1.1); }
.process-step h4 { color: var(--brand-black); font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.process-step p { color: var(--brand-gray1); font-size: 14px; line-height: 1.7; }
/* ======================================== Advantages Section ======================================== */
.advantages-section { background: var(--brand-white); overflow: hidden; padding: 100px 0; position: relative; }
.advantages-grid { display: grid; gap: 24px; grid-template-columns: repeat(4, 1fr); }
.advantage-item { background: var(--brand-white); border: 1px solid var(--brand-gray3); border-radius: 20px; box-shadow: var(--shadow-md); padding: 32px 24px; text-align: center; transition: all var(--transition-slow); }
.advantage-item:hover { border-color: var(--brand-blue); box-shadow: var(--shadow-xl); transform: translateY(-8px); }
.advantage-icon { align-items: center; background: linear-gradient(135deg, rgba(54, 105, 239, 0.1), rgba(90, 140, 247, 0.1)); border-radius: 50%; color: var(--brand-blue); display: flex; height: 72px; justify-content: center; margin: 0 auto 20px; transition: all var(--transition-normal); width: 72px; }
.advantage-item:hover .advantage-icon { background: var(--brand-blue); color: var(--brand-white); transform: scale(1.1) rotate(5deg); }
.advantage-item h4 { color: var(--brand-black); font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.advantage-item p { color: var(--brand-gray1); font-size: 14px; line-height: 1.7; }
/* ======================================== 合作 Responsive Design ======================================== */
@media (max-width: 1024px) {
    .collaboration-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { flex-wrap: wrap; gap: 40px; }
    .process-steps::before { display: none; }
    .process-step { flex: 1 1 calc(50% - 20px); min-width: 200px; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .collaboration-grid { grid-template-columns: 1fr; }
    .process-step { flex: 1 1 100%; }
    .advantages-grid { grid-template-columns: 1fr; }
}