/* ========== 渠道合作页面样式 ========== */
.qd-banner {
    margin-top: 70px; height: 420px;
    background: linear-gradient(135deg, #0f172a, #1e3a5f, #2563eb);
    display: flex; align-items: center; justify-content: center;
    text-align: center; position: relative; overflow: hidden;
}
.qd-banner::before {
    content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.qd-banner-content { position: relative; z-index: 1; padding: 0 20px; }
.qd-banner-title { font-size: 42px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.qd-banner-title .highlight { color: #60a5fa; }
.qd-banner-desc { font-size: 18px; color: rgba(255,255,255,0.8); line-height: 1.6; max-width: 600px; margin: 0 auto 30px; }
.qd-banner-btn {
    display: inline-block; padding: 14px 40px; background: #2563eb;
    color: #fff; font-size: 16px; font-weight: 500; border-radius: 6px;
    transition: all 0.3s; border: 1px solid rgba(255,255,255,0.2);
}
.qd-banner-btn:hover { background: #1d4ed8; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(37,99,235,0.4); }

@media (max-width: 768px) {
    .qd-banner { height: 300px; }
    .qd-banner-title { font-size: 28px; }
    .qd-banner-desc { font-size: 15px; }
}

/* === 合作优势 === */
.qd-advantage { padding: 60px 0; background: #fff; }
.qd-advantage .container { width: 92%; max-width: 1200px; margin: 0 auto; }
.qd-section-title { text-align: center; font-size: 28px; font-weight: 600; color: #1a1a1a; margin-bottom: 12px; }
.qd-section-subtitle { text-align: center; font-size: 15px; color: #6b7280; margin-bottom: 40px; }
.qd-grid-4 {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.qd-adv-card {
    background: #f8fafc; border-radius: 12px; padding: 32px 24px;
    text-align: center; transition: all 0.3s; border: 1px solid #eef2f7;
}
.qd-adv-card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(0,0,0,0.06); border-color: #2563eb; }
.qd-adv-icon {
    width: 56px; height: 56px; margin: 0 auto 16px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #eff6ff, #dbeafe); border-radius: 14px; font-size: 26px;
}
.qd-adv-card h3 { font-size: 18px; font-weight: 600; color: #1e293b; margin-bottom: 8px; }
.qd-adv-card p { font-size: 14px; color: #6b7280; line-height: 1.6; }

@media (max-width: 992px) { .qd-grid-4 { grid-template-columns: repeat(2, 1fr); } }

/* === 合作模式 === */
.qd-model { padding: 60px 0; background: #f8fafc; }
.qd-model .container { width: 92%; max-width: 1200px; margin: 0 auto; }
.qd-grid-3 {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.qd-model-card {
    background: #fff; border-radius: 12px; padding: 36px 28px;
    border: 1px solid #eef2f7; transition: all 0.3s;
    position: relative; overflow: hidden;
}
.qd-model-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    opacity: 0; transition: opacity 0.3s;
}
.qd-model-card:hover::before { opacity: 1; }
.qd-model-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0,0,0,0.06); }
.qd-model-tag {
    display: inline-block; padding: 4px 12px; font-size: 12px; font-weight: 500;
    border-radius: 20px; margin-bottom: 14px;
}
.qd-model-tag.gold { background: #fef3c7; color: #d97706; }
.qd-model-tag.blue { background: #dbeafe; color: #2563eb; }
.qd-model-tag.green { background: #d1fae5; color: #059669; }
.qd-model-card h3 { font-size: 20px; font-weight: 600; color: #1e293b; margin-bottom: 10px; }
.qd-model-card p { font-size: 14px; color: #6b7280; line-height: 1.7; margin-bottom: 16px; }
.qd-model-features { list-style: none; padding: 0; margin: 0; }
.qd-model-features li {
    padding: 6px 0; font-size: 14px; color: #374151;
    display: flex; align-items: center; gap: 8px;
}
.qd-model-features li::before { content: '✓'; color: #2563eb; font-weight: 700; }

@media (max-width: 992px) { .qd-grid-3 { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; } }

/* === 合作流程 === */
.qd-process { padding: 60px 0; background: #fff; }
.qd-process .container { width: 92%; max-width: 1200px; margin: 0 auto; }
.qd-steps { display: flex; justify-content: center; gap: 0; position: relative; counter-reset: step; }
.qd-step {
    flex: 1; text-align: center; padding: 0 20px; position: relative;
    counter-increment: step;
}
.qd-step::after {
    content: ''; position: absolute; top: 28px; left: 55%; right: -45%;
    height: 2px; background: linear-gradient(90deg, #2563eb, #93c5fd);
    z-index: 0;
}
.qd-step:last-child::after { display: none; }
.qd-step-num {
    width: 56px; height: 56px; margin: 0 auto 16px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #2563eb, #60a5fa);
    color: #fff; font-size: 20px; font-weight: 700; border-radius: 50%;
    position: relative; z-index: 1;
}
.qd-step h4 { font-size: 16px; font-weight: 600; color: #1e293b; margin-bottom: 6px; }
.qd-step p { font-size: 13px; color: #6b7280; line-height: 1.5; }

@media (max-width: 768px) {
    .qd-steps { flex-direction: column; gap: 16px; align-items: center; }
    .qd-step::after { display: none; }
    .qd-step { display: flex; align-items: flex-start; gap: 14px; text-align: left; padding: 0; width: 100%; max-width: 340px; }
    .qd-step-num { margin: 0; flex-shrink: 0; width: 40px; height: 40px; font-size: 16px; }
    .qd-step h4 { font-size: 14px; margin-bottom: 2px; white-space: nowrap; }
    .qd-step p { font-size: 12px; line-height: 1.4; }
}

/* === 支持体系 === */
.qd-support { padding: 60px 0; background: #f8fafc; }
.qd-support .container { width: 92%; max-width: 1200px; margin: 0 auto; }
.qd-sup-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.qd-sup-item {
    background: #fff; border-radius: 10px; padding: 28px 20px; text-align: center;
    border: 1px solid #eef2f7; transition: all 0.3s;
}
.qd-sup-item:hover { box-shadow: 0 8px 20px rgba(0,0,0,0.05); }
.qd-sup-item .icon { font-size: 32px; margin-bottom: 12px; }
.qd-sup-item h4 { font-size: 16px; font-weight: 600; color: #1e293b; margin-bottom: 6px; }
.qd-sup-item p { font-size: 13px; color: #6b7280; line-height: 1.5; }

@media (max-width: 992px) { .qd-sup-grid { grid-template-columns: repeat(2, 1fr); } }

/* === FAQ === */
.qd-faq { padding: 60px 0; background: #fff; }
.qd-faq .container { width: 92%; max-width: 1200px; margin: 0 auto; }
.qd-faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.qd-faq-item {
    background: #fff; border-radius: 12px; padding: 24px 28px;
    border: 1px solid #f0f0f0; transition: all 0.3s;
    display: flex; flex-direction: column; gap: 12px;
}
.qd-faq-item:hover { border-color: #c0d4ff; box-shadow: 0 4px 16px rgba(37,99,235,0.06); }
.qd-faq-q {
    display: block; cursor: default; font-size: 15px; font-weight: 600;
    color: #111827; line-height: 1.6;
}
.qd-faq-q .num { color: #2563eb; font-weight: 600; margin-right: 8px; }
.qd-faq-a {
    font-size: 14px; color: #666; line-height: 1.9;
    padding-top: 12px; border-top: 2px solid #eef2ff;
}
@media (max-width: 768px) { .qd-faq-list { grid-template-columns: 1fr; gap: 14px; } .qd-faq-item { padding: 20px; } }

/* === CTA === */
.qd-cta {
    padding: 60px 0; text-align: center;
    background: linear-gradient(135deg, #0f172a, #1e3a5f);
}
.qd-cta .container { width: 92%; max-width: 700px; margin: 0 auto; }
.qd-cta h2 { font-size: 28px; font-weight: 600; color: #fff; margin-bottom: 12px; }
.qd-cta p { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 30px; }
.qd-cta .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.qd-cta-btn-primary {
    display: inline-block; padding: 14px 36px; background: #2563eb;
    color: #fff; font-size: 16px; font-weight: 500; border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.15); transition: all 0.3s;
}
.qd-cta-btn-primary:hover { background: #1d4ed8; color: #fff; transform: translateY(-2px); }
.qd-cta-btn-secondary {
    display: inline-block; padding: 14px 36px; background: transparent;
    color: #fff; font-size: 16px; font-weight: 500; border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.3); transition: all 0.3s;
}
.qd-cta-btn-secondary:hover { background: rgba(255,255,255,0.1); color: #fff; }