/* ========== 商务合作页 /business-cooperation ==========
   只补这一页需要的样式；按钮、表单控件、section-header、info-block
   一律复用 style.css，保证和站内其余页面是同一套视觉。 */

/* ---------- Hero ---------- */
.coop-hero {
  background: linear-gradient(135deg, #0d1f3c 0%, #1b2f52 55%, #24406e 100%);
  color: #fff;
  padding: 132px 0 76px;
  position: relative;
  overflow: hidden;
}
/* 右上角一层极淡的品牌红光晕，避免整块深蓝显得平 */
.coop-hero::after {
  content: '';
  position: absolute; top: -140px; right: -120px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200,16,46,.28) 0%, rgba(200,16,46,0) 70%);
  pointer-events: none;
}
.coop-hero-inner { position: relative; z-index: 1; max-width: 860px; }
.coop-eyebrow {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .22em;
  color: rgba(255,255,255,.55); text-transform: uppercase; margin-bottom: 14px;
  padding-bottom: 8px; border-bottom: 2px solid var(--red);
}
.coop-hero h1 { font-size: 3rem; font-weight: 800; line-height: 1.15; letter-spacing: -.5px; }
.coop-tagline {
  margin-top: 12px; font-size: 1.15rem; font-weight: 600;
  color: var(--teal-light); letter-spacing: .06em;
}
.coop-lead {
  margin-top: 18px; max-width: 720px;
  color: rgba(255,255,255,.75); font-size: 1rem; line-height: 1.9;
}
.coop-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.coop-hero-trust {
  display: flex; gap: 22px; flex-wrap: wrap; margin-top: 32px;
  font-size: .82rem; color: rgba(255,255,255,.55);
}

/* ---------- 通用区块 ---------- */
.coop-section { padding: 84px 0; background: #fff; }
.coop-section-alt { background: var(--gray-50); }
.coop-section .section-header { margin-bottom: 44px; }
.coop-section .section-header p { max-width: 760px; margin: 0 auto; line-height: 1.9; }

/* ---------- 合作对象卡片 ---------- */
.coop-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.coop-card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 28px 26px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.coop-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(200,16,46,.35);
}
.coop-card-icon { font-size: 1.9rem; line-height: 1; margin-bottom: 14px; }
.coop-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.coop-card p { font-size: .9rem; color: var(--gray-500); line-height: 1.8; }
/* 同行结算 / 其他伙伴：与上面六张「服务客户的专业人士」性质不同，
   单独拉成一排两张宽卡，既区分开又不会在三列网格里落下一张孤零零的卡。 */
.coop-cards-wide { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 20px; }
.coop-card-wide {
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f8 100%);
  border-style: dashed;
}
.coop-card-peer {
  background: linear-gradient(135deg, #fff6f7 0%, #fdeef1 100%);
  border-style: solid;
  border-color: rgba(200,16,46,.28);
}
.coop-card-peer h3 { color: var(--red); }
.coop-section-alt .coop-card { background: #fff; }

/* ---------- 合作方式 ---------- */
.coop-modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.coop-mode {
  display: flex; gap: 18px; align-items: flex-start;
  background: #fff; border-radius: var(--radius); padding: 26px 26px;
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--red);
}
.coop-mode-no {
  font-size: 1.35rem; font-weight: 800; color: var(--gray-200);
  line-height: 1.2; flex-shrink: 0; font-variant-numeric: tabular-nums;
}
.coop-mode h3 { font-size: 1.02rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.coop-mode p { font-size: .9rem; color: var(--gray-500); line-height: 1.8; }

/* ---------- 申请表单 ---------- */
.coop-apply { padding: 90px 0; background: var(--navy-light); }
.coop-apply-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 48px; align-items: start; }
.coop-form-wrap { background: #fff; border-radius: var(--radius-lg); padding: 36px; }
.coop-apply-side { display: flex; flex-direction: column; gap: 22px; }

.coop-form-wrap .req { color: var(--red); margin-left: 2px; }
.coop-form-wrap .lbl-hint {
  color: var(--gray-500); font-weight: 500; text-transform: none; letter-spacing: 0; margin-left: 4px;
}
/* 前端校验不通过时高亮，比浏览器原生气泡更贴合页面 */
.coop-form-wrap .invalid input,
.coop-form-wrap .invalid select,
.coop-form-wrap .invalid textarea { border-color: var(--red); }

.coop-checks { display: flex; flex-wrap: wrap; gap: 8px; }
.coop-check {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border: 2px solid var(--gray-200); border-radius: 100px;
  font-size: .85rem; color: var(--gray-700); cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}
.coop-check:hover { border-color: var(--gray-500); }
.coop-check input { accent-color: var(--red); width: 15px; height: 15px; cursor: pointer; }
.coop-check.on { border-color: var(--red); background: rgba(200,16,46,.05); color: var(--navy); font-weight: 600; }

.coop-consent {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .85rem; color: var(--gray-700); line-height: 1.7; cursor: pointer;
  background: var(--gray-50); border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm); padding: 14px 16px;
}
.coop-consent input { accent-color: var(--red); width: 16px; height: 16px; margin-top: 2px; flex-shrink: 0; cursor: pointer; }
.coop-consent.invalid { border-color: var(--red); background: #fff5f6; }

.coop-error {
  margin-top: 4px; padding: 11px 14px; background: #fff0f0; color: var(--red);
  border-radius: var(--radius-sm); font-size: .85rem; line-height: 1.6; text-align: center;
}
.coop-privacy {
  font-size: .78rem; color: rgba(255,255,255,.45); line-height: 1.8;
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .coop-cards { grid-template-columns: repeat(2, 1fr); }
  .coop-apply-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .coop-hero { padding: 104px 0 56px; }
  .coop-hero h1 { font-size: 2.1rem; }
  .coop-tagline { font-size: 1rem; }
  .coop-lead { font-size: .93rem; line-height: 1.85; }
  .coop-hero-cta .btn { flex: 1 1 auto; justify-content: center; }
  .coop-hero-trust { gap: 10px; flex-direction: column; }

  .coop-section, .coop-apply { padding: 56px 0; }
  .coop-cards { grid-template-columns: 1fr; gap: 14px; }
  .coop-card { padding: 22px 20px; }
  .coop-cards-wide { grid-template-columns: 1fr; gap: 14px; margin-top: 14px; }
  .coop-modes { grid-template-columns: 1fr; gap: 14px; }
  .coop-mode { padding: 20px 18px; gap: 14px; }

  /* 手机端表单一律单栏 */
  .coop-form-wrap { padding: 24px 18px; border-radius: var(--radius); }
  .coop-form-wrap .form-row { grid-template-columns: 1fr; }
  .coop-checks { gap: 7px; }
  .coop-check { padding: 8px 12px; font-size: .82rem; }
}