/* =============================================
   about.css - 关于我们页面专属样式
   前缀: ab-
   配色: 深森林绿 #1a4d3a / 品牌翠绿 #85ce03
   ============================================= */

/* ===== Hero Banner ===== */
.ab-hero { position: relative; padding: 160px 0 80px; background: linear-gradient(135deg, #0d3323 0%, #1a4d3a 50%, #2d6b4f 100%); overflow: hidden; text-align: center; }
.ab-hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 20%, rgba(133,206,3,.18) 0%, transparent 50%), radial-gradient(ellipse at 70% 80%, rgba(45,107,79,.35) 0%, transparent 50%); }
.ab-hero-image { position: absolute; inset: 0; background-size: cover; background-position: center; background-repeat: no-repeat; z-index: 0; }
.ab-hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(13,51,35,.82) 0%, rgba(26,77,58,.78) 100%); z-index: 1; }
.ab-hero-inner { position: relative; z-index: 2; color: #fff; }
.ab-hero-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; margin: 0 0 12px; line-height: 1.25; letter-spacing: 1px; }
.ab-hero-desc { font-size: 1.05rem; color: rgba(255,255,255,.82); margin: 0 auto; max-width: 680px; line-height: 1.7; }

/* ===== Section 基础 ===== */
.ab-section { padding: 90px 0; }
.ab-section-alt { background: #f7faf7; }
.ab-section-header { text-align: center; margin-bottom: 56px; }
.ab-title { font-size: clamp(1.5rem, 2.4vw, 2rem); font-weight: 800; color: #0f172a; margin: 0 0 14px; line-height: 1.3; }
.ab-title-accent { display: block; font-size: .8rem; font-weight: 600; color: #2d6b4f; letter-spacing: 3px; margin-top: 8px; text-transform: none; }
.ab-desc { font-size: 1rem; color: #333333; margin: 0 auto; max-width: 760px; line-height: 1.8; }

/* ===== 模块1：企业概述 ===== */
.ab-intro-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; }
.ab-intro-text p { font-size: 16px; color: #333333; line-height: 2; margin: 0 0 18px; }
.ab-text-accent { color: #1a4d3a; font-weight: 600; }
.ab-intro-visual { position: relative; }
.ab-intro-img { width: 100%; height: 420px; background-size: cover; background-position: center; border-radius: 18px; box-shadow: 0 20px 50px rgba(26,77,58,.18); }
.ab-intro-badge { position: absolute; bottom: -24px; right: -16px; background: linear-gradient(135deg, #1a4d3a 0%, #2d6b4f 100%); color: #fff; padding: 22px 30px; border-radius: 14px; box-shadow: 0 12px 30px rgba(26,77,58,.35); display: flex; flex-direction: column; align-items: center; }
.ab-intro-badge-num { font-size: 2rem; font-weight: 800; color: #c7e98a; line-height: 1; }
.ab-intro-badge-text { font-size: .85rem; color: rgba(255,255,255,.9); margin-top: 6px; }

/* ===== 模块2：品牌发展历程 ===== */
.ab-history-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: start; }
.ab-history-text p { font-size: 16px; color: #333333; line-height: 2; margin: 0 0 18px; }
.ab-history-points { list-style: none; margin: 0; padding: 0; }
.ab-history-points li { display: flex; align-items: flex-start; gap: 16px; padding: 18px 0; border-bottom: 1px dashed #d4e5d4; }
.ab-history-points li:last-child { border-bottom: none; }
.ab-point-dot { flex-shrink: 0; width: 12px; height: 12px; border-radius: 50%; background: #85ce03; margin-top: 8px; box-shadow: 0 0 0 5px rgba(133,206,3,.18); }
.ab-history-points h4 { font-size: 1.05rem; font-weight: 700; color: #0f172a; margin: 0 0 6px; }
.ab-history-points p { font-size: .9rem; color: #333333; margin: 0; line-height: 1.6; }

/* ===== 模块3：基地实力展示 ===== */
.ab-base-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; margin-bottom: 40px; }
.ab-base-card { background: #fff; border: 1px solid #e5efe5; border-radius: 16px; overflow: hidden; transition: all .4s cubic-bezier(.4,0,.2,1); box-shadow: 0 4px 20px rgba(26,77,58,.06); }
.ab-base-card:hover { transform: translateY(-6px); box-shadow: 0 18px 45px rgba(26,77,58,.15); border-color: #85ce03; }
.ab-base-img { height: 240px; background-size: cover; background-position: center; position: relative; }
.ab-base-tag { position: absolute; top: 16px; left: 16px; background: rgba(26,77,58,.92); color: #fff; padding: 6px 16px; border-radius: 50px; font-size: .8rem; font-weight: 600; backdrop-filter: blur(6px); }
.ab-base-body { padding: 28px; }
.ab-base-title { font-size: 1.2rem; font-weight: 700; color: #0f172a; margin: 0 0 12px; line-height: 1.4; }
.ab-base-desc { font-size: .95rem; color: #333333; line-height: 1.8; margin: 0 0 18px; }
.ab-base-features { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ab-base-features li { font-size: .85rem; color: #2d6b4f; padding: 8px 14px; background: #f0f7ee; border-radius: 8px; font-weight: 500; text-align: center; }
.ab-base-summary { display: flex; align-items: center; gap: 18px; background: linear-gradient(135deg, #1a4d3a 0%, #2d6b4f 100%); color: #fff; padding: 26px 36px; border-radius: 14px; box-shadow: 0 12px 30px rgba(26,77,58,.2); }
.ab-base-summary-icon { flex-shrink: 0; width: 44px; height: 44px; background: rgba(133,206,3,.25); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #c7e98a; }
.ab-base-summary p { font-size: .98rem; line-height: 1.8; margin: 0; color: rgba(255,255,255,.95); }

/* ===== 模块4：团队与资质 ===== */
.ab-team-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 56px; }
.ab-team-stat { background: #fff; border: 1px solid #e5efe5; border-radius: 14px; padding: 32px 20px; text-align: center; transition: all .4s; box-shadow: 0 4px 16px rgba(26,77,58,.05); }
.ab-team-stat:hover { transform: translateY(-4px); border-color: #85ce03; box-shadow: 0 12px 30px rgba(133,206,3,.18); }
.ab-stat-num { display: block; font-size: 2.6rem; font-weight: 800; color: #1a4d3a; line-height: 1; }
.ab-stat-num span { font-size: 1rem; font-weight: 600; color: #2d6b4f; margin-left: 4px; }
.ab-stat-label { display: block; font-size: .9rem; color: #333333; margin-top: 12px; }
.ab-team-flow { display: flex; align-items: stretch; gap: 16px; justify-content: center; flex-wrap: wrap; }
.ab-flow-item { flex: 1; min-width: 240px; background: #fff; border: 1px solid #e5efe5; border-radius: 14px; padding: 28px 24px; position: relative; box-shadow: 0 4px 16px rgba(26,77,58,.05); transition: all .3s; }
.ab-flow-item:hover { border-color: #85ce03; box-shadow: 0 10px 26px rgba(133,206,3,.15); }
.ab-flow-num { display: inline-block; font-size: 1.4rem; font-weight: 800; color: #c7e98a; background: linear-gradient(135deg, #1a4d3a, #2d6b4f); width: 50px; height: 50px; line-height: 50px; text-align: center; border-radius: 50%; margin-bottom: 16px; }
.ab-flow-item h4 { font-size: 1.1rem; font-weight: 700; color: #0f172a; margin: 0 0 8px; }
.ab-flow-item p { font-size: .9rem; color: #333333; margin: 0; line-height: 1.6; }
.ab-flow-arrow { display: flex; align-items: center; font-size: 1.8rem; color: #85ce03; font-weight: 700; }

/* ===== 模块5：服务理念与核心优势 ===== */
.ab-concept-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; }
.ab-concept-card { background: #fff; border: 1px solid #e5efe5; border-radius: 16px; padding: 40px 36px; box-shadow: 0 4px 20px rgba(26,77,58,.06); transition: all .4s; }
.ab-concept-card:hover { box-shadow: 0 14px 40px rgba(26,77,58,.12); }
.ab-concept-card-promise { background: linear-gradient(135deg, #1a4d3a 0%, #2d6b4f 100%); color: #fff; border-color: #1a4d3a; }
.ab-concept-head { margin-bottom: 18px; }
.ab-concept-label { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: 3px; color: #2d6b4f; background: rgba(133,206,3,.15); padding: 6px 16px; border-radius: 50px; }
.ab-concept-card-promise .ab-concept-label { color: #c7e98a; background: rgba(133,206,3,.22); }
.ab-concept-title { font-size: 1.25rem; font-weight: 700; color: #0f172a; margin: 0 0 16px; line-height: 1.5; }
.ab-concept-card-promise .ab-concept-title { color: #fff; }
.ab-concept-text { font-size: .98rem; color: #333333; line-height: 1.9; margin: 0; }
.ab-concept-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ab-concept-list li { display: flex; align-items: center; gap: 10px; font-size: .95rem; color: rgba(255,255,255,.95); }
.ab-concept-list li span { flex-shrink: 0; width: 22px; height: 22px; line-height: 22px; text-align: center; background: rgba(133,206,3,.3); color: #c7e98a; border-radius: 50%; font-size: .8rem; font-weight: 700; }

/* ===== 模块6：企业愿景 ===== */
.ab-vision-inner { max-width: 900px; margin: 0 auto 40px; background: #fff; border-left: 4px solid #85ce03; border-radius: 0 14px 14px 0; padding: 36px 44px; box-shadow: 0 8px 30px rgba(26,77,58,.08); }
.ab-vision-inner p { font-size: 1.05rem; color: #333333; line-height: 2; margin: 0; }
.ab-vision-cta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.ab-cta-btn { display: inline-block; padding: 14px 38px; border-radius: 50px; font-size: .98rem; font-weight: 600; text-decoration: none; transition: all .3s; }
.ab-cta-primary { background: linear-gradient(135deg, #1a4d3a 0%, #2d6b4f 100%); color: #fff; box-shadow: 0 8px 22px rgba(26,77,58,.3); }
.ab-cta-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(26,77,58,.42); color: #fff; }
.ab-cta-outline { background: #fff; color: #1a4d3a; border: 2px solid #1a4d3a; }
.ab-cta-outline:hover { background: #1a4d3a; color: #fff; transform: translateY(-2px); }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .ab-intro-layout, .ab-history-grid, .ab-concept-grid { grid-template-columns: 1fr; gap: 40px; }
  .ab-intro-badge { right: 0; bottom: -20px; }
  .ab-base-grid { grid-template-columns: 1fr; }
  .ab-team-stats { grid-template-columns: repeat(2, 1fr); }
  .ab-concept-list { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .ab-hero { padding: 110px 0 60px; }
  .ab-section { padding: 60px 0; }
  .ab-section-header { margin-bottom: 36px; }
  .ab-intro-img { height: 280px; }
  .ab-team-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
  .ab-team-stat { padding: 22px 14px; }
  .ab-stat-num { font-size: 2rem; }
  .ab-team-flow { flex-direction: column; gap: 12px; }
  .ab-flow-arrow { transform: rotate(90deg); justify-content: center; padding: 4px 0; }
  .ab-base-summary { flex-direction: column; text-align: center; padding: 22px; }
  .ab-vision-inner { padding: 24px 22px; }
  .ab-vision-cta { flex-direction: column; align-items: stretch; }
  .ab-cta-btn { text-align: center; }
}
@media (max-width: 480px) {
  .ab-team-stats { grid-template-columns: 1fr; }
  .ab-base-features { grid-template-columns: 1fr; }
}