/* ===== 关于我们页 专属样式 ===== */

/* ---------- 页头 Banner · 粒子文字 ---------- */
.about-banner{position:relative;height:520px;background:linear-gradient(135deg,#0B0F33 0%,#151A4E 48%,#2B2F8F 100%);overflow:hidden}
#particleCanvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.banner-sub{position:absolute;z-index:3;bottom:34px;left:0;right:0;text-align:center;font-size:14px;letter-spacing:5px;color:rgba(255,255,255,.72);text-transform:uppercase}
.about-banner::after{content:"";position:absolute;inset:0;background:radial-gradient(1100px 460px at 50% 115%,rgba(62,62,255,.22),transparent 70%);pointer-events:none}

/* ---------- 公司简介 ---------- */
.about-company{background:linear-gradient(180deg,#EEF2FF 0%,#F7F6FF 100%);padding:70px 0 76px}
.ac-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center;margin-top:8px}
.ac-text .eyebrow{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--brand);font-weight:600;margin-bottom:14px}
.ac-text h2{font-size:32px;font-weight:800;letter-spacing:1px;margin-bottom:20px}
.ac-text p{font-size:14.5px;color:var(--text-sub);line-height:2.05;margin-bottom:16px}
.ac-slogan{display:inline-block;margin-top:8px;font-size:18px;font-weight:700;letter-spacing:2px;color:var(--brand);background:var(--brand-soft);padding:12px 26px;border-radius:999px}
.ac-visual{position:relative}
.ac-visual img{width:100%;border-radius:22px;box-shadow:0 24px 60px rgba(31,36,48,.16);display:block}
.ac-chip{position:absolute;background:#fff;border-radius:12px;box-shadow:0 10px 28px rgba(31,36,48,.14);padding:10px 16px;font-size:12.5px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px;animation:floaty 5s ease-in-out infinite}
.ac-chip::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand)}
.ac-chip.chip1{top:22px;left:-22px}
.ac-chip.chip2{bottom:26px;left:-16px;animation-delay:1.2s}
.ac-chip.chip3{bottom:86px;right:-18px;animation-delay:2.4s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 数据实力带 ---------- */
.stats-band{background:linear-gradient(135deg,#161A3E 0%,#2B2F6E 55%,#3E3EFF 130%);padding:52px 0;position:relative;overflow:hidden}
.stats-band::before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(120,130,255,.35);filter:blur(80px);top:-120px;left:-80px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;z-index:2}
.stat{text-align:center;color:#fff}
.stat strong{font-size:46px;font-weight:800;letter-spacing:1px;background:linear-gradient(90deg,#fff,#B9C4FF);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat strong span{font-size:22px;-webkit-text-fill-color:#B9C4FF}
.stat p{margin-top:8px;font-size:13px;color:rgba(255,255,255,.72);letter-spacing:1px}

/* ---------- 核心能力 ---------- */
.about-cap{background:#fff;padding:70px 0 76px}
.cap-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.cap-card{position:relative;padding:32px 26px;border:1px solid var(--line);border-radius:18px;transition:all .28s;overflow:hidden}
.cap-card::after{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,#3E3EFF,#8A5BFF);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.cap-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(31,36,48,.1);border-color:transparent}
.cap-card:hover::after{transform:scaleX(1)}
.cap-card .cc-ic{width:52px;height:52px;border-radius:14px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.cap-card h4{font-size:16px;font-weight:700;margin-bottom:10px}
.cap-card p{font-size:13px;color:var(--text-sub);line-height:1.8}

/* ---------- 发展历程 · 纵向时间线 ---------- */
.about-tl{background:linear-gradient(180deg,#EEF2FF 0%,#FBF9FF 100%);padding:70px 0 76px}
.tl-wrap{max-width:760px;margin:46px auto 0;position:relative;padding-left:30px;border-left:2px solid var(--brand)}
.tl-wrap li{position:relative;padding:0 0 34px 24px}
.tl-wrap li:last-child{padding-bottom:6px}
.tl-wrap li::before{content:"";position:absolute;left:-9px;top:4px;width:16px;height:16px;border-radius:50%;background:#fff;border:4px solid var(--brand);box-shadow:0 0 0 5px rgba(62,62,255,.12)}
.tl-wrap li:hover::before{background:var(--brand)}
.tl-wrap .tl-date{display:inline-block;font-weight:800;color:var(--brand);font-size:14px;background:var(--brand-soft);padding:3px 12px;border-radius:999px;margin-bottom:8px}
.tl-wrap p{font-size:14px;color:var(--text-sub);line-height:1.8}

/* ---------- 价值观 ---------- */
.about-values{background:#fff;padding:70px 0 76px}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.value-card{background:var(--bg);border-radius:16px;padding:28px 22px;text-align:center;transition:all .25s}
.value-card:hover{background:var(--brand-soft);transform:translateY(-5px)}
.value-card .v-ic{font-size:30px;margin-bottom:14px}
.value-card h4{font-size:15px;font-weight:700;margin-bottom:8px}
.value-card p{font-size:12.5px;color:var(--text-sub);line-height:1.7}

/* ---------- 联系我们 ---------- */
.about-contact{background:linear-gradient(180deg,#EEF2FF 0%,#F7F6FF 100%);padding:70px 0 80px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.contact-item{background:#fff;border-radius:18px;padding:30px 26px;box-shadow:var(--shadow);transition:all .25s}
.contact-item:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(31,36,48,.12)}
.contact-item .ct-ic{width:50px;height:50px;border-radius:13px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.contact-item h4{font-size:16px;font-weight:700;margin-bottom:8px}
.contact-item p{font-size:13px;color:var(--text-sub);line-height:1.9}
.contact-item a{color:var(--brand)}
.contact-item a:hover{text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .about-banner{height:440px}
  .ac-grid{grid-template-columns:1fr;gap:40px}
  .cap-cards{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto}
}
@media (max-width:640px){
  .about-banner{height:380px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px 18px}
  .stat strong{font-size:38px}
  .cap-cards,.value-grid{grid-template-columns:1fr}
  .ac-chip.chip1{left:6px}
  .ac-chip.chip2{left:6px}
  .ac-chip.chip3{right:6px}
}