/* =========================================================
   sections.css —— 各业务区块、页脚、弹层
   ========================================================= */

/* ---------- 产品 ---------- */
.products{background:#fff;}
.cats{
  display:flex;flex-wrap:wrap;justify-content:center;gap:8px;
  margin:0 0 30px;
}
.cat{
    padding:9px 16px;
    font-size:14px;
    color:#4A5F75;
    background:var(--paper);
    border:1px solid transparent;
    border-radius:2px;
    transition:background .28s var(--ease),color .28s var(--ease),
               border-color .28s var(--ease);
}
.cat:hover{color:var(--blue);border-color:#CFE2F5;background:#fff;}
.cat.is-active{background:var(--blue);color:#fff;}
@media (min-width:768px){
  .cats{gap:10px;margin-bottom:40px;}
  .cat{padding:10px 22px;font-size:15px;}
}

.p-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
@media (min-width:640px){ .p-grid{grid-template-columns:repeat(2,1fr);gap:18px;} }
@media (min-width:1024px){ .p-grid{grid-template-columns:repeat(3,1fr);gap:24px;} }

.p-card{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--paper);
  border-radius:2px;
  cursor:pointer;
  transition:opacity .35s var(--ease),filter .35s var(--ease),
             transform .45s var(--ease);
}
.p-card__pic{position:relative;aspect-ratio:4 / 3;overflow:hidden;}
.p-card__pic img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .8s var(--ease);
}
.p-card__mask{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:flex-end;
  gap:12px;
  padding:22px;
  background:linear-gradient(180deg,rgba(4,36,63,0) 34%,rgba(4,36,63,.86) 100%);
  opacity:0;
  transform:translateY(10px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
.p-card:hover .p-card__mask,
.p-card:focus-visible .p-card__mask{opacity:1;transform:none;}

/* 触屏设备无 hover，标题与按钮常驻 */
@media (hover:none){
  .p-card__mask{opacity:1;transform:none;}
}
.p-card__tag{
  font-size:12px;letter-spacing:.08em;
  color:rgba(255,255,255,.72);
}
.p-card__title{
  font-size:19px;font-weight:600;color:#fff;line-height:1.4;
}
.p-card__btn{
  display:inline-flex;align-items:center;gap:8px;
  align-self:flex-start;
  height:40px;padding:0 18px;
  font-size:13.5px;
  background:var(--yellow);color:#3A2A00;
  border-radius:2px;
  transition:background .3s,transform .3s var(--ease);
}
.p-card__btn i{font-size:13px;}
.p-card:hover .p-card__pic img{transform:scale(1.06);}
.p-card:hover .p-card__btn{background:var(--yellow-soft);}
.p-card:hover{transform:translateY(-4px);}
.p-card.is-dim{opacity:.28;filter:saturate(.4);}
.p-card.is-dim:hover{opacity:.55;}

.p-more{margin-top:36px;text-align:center;}
@media (min-width:1024px){ .p-more{margin-top:46px;} }

/* ---------- 优势（深色 80vh） ---------- */
.advantage{
  position:relative;
  display:flex;align-items:center;
  min-height:80vh;
  padding:64px 0;
  background:
    radial-gradient(120% 90% at 12% 0%,rgba(21,106,178,.36) 0%,rgba(4,36,63,0) 55%),
    linear-gradient(150deg,#04243F 0%,#053157 48%,#0A4877 100%);
  color:#fff;
  overflow:hidden;
}
.advantage__texture{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15) 70%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15) 70%);
}
.advantage__inner{position:relative;z-index:1;width:100%;}
.advantage__head{margin-bottom:28px;}
.advantage .sec-title::after{left:0;transform:none;}
.advantage__body{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:start;
}
@media (min-width:1024px){
  .advantage{padding:80px 0;min-height:80vh;}
  .advantage__head{margin-bottom:38px;}
  .advantage__body{grid-template-columns:1.02fr 1.1fr;gap:56px;align-items:center;}
}

/* 优势列表 */
.adv-list{display:flex;flex-direction:column;}
.adv-item{
  display:grid;
  grid-template-columns:42px 1fr;
  align-items:start;
  gap:6px;
  width:100%;
  padding:15px 0;
  text-align:left;
  border-top:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.72);
  transition:color .3s var(--ease),padding .3s var(--ease);
}
.adv-item:last-child{border-bottom:1px solid rgba(255,255,255,.14);}
.adv-item__no{
  font-size:13px;letter-spacing:.06em;
  color:rgba(255,255,255,.42);
  padding-top:4px;
  font-variant-numeric:tabular-nums;
  transition:color .3s;
}
.adv-item__name{font-size:17px;font-weight:600;letter-spacing:.01em;line-height:1.5;}
.adv-item__desc{
  grid-column:2;
  font-size:13.5px;line-height:1.7;
  color:rgba(255,255,255,.55);
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .45s var(--ease),opacity .35s var(--ease),margin .45s var(--ease);
}
.adv-item:hover{color:#fff;}
.adv-item.is-active{color:#fff;padding:17px 0;}
.adv-item.is-active .adv-item__no{color:var(--yellow);}
.adv-item.is-active .adv-item__desc{max-height:130px;opacity:1;margin-top:6px;}

/* 大图 */
.adv-stage{position:relative;}
.adv-stage__media{
  position:relative;
  aspect-ratio:4 / 3;
  overflow:hidden;
  background:#063258;
  border-radius:2px;
}
.adv-stage__media img{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;
  opacity:0;transform:scale(1.05);
  transition:opacity .7s var(--ease),transform 1.2s var(--ease);
}
.adv-stage__media img.is-on{opacity:1;transform:scale(1);}
.adv-stage__cap{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:18px;
}
.adv-stage__no{
  font-size:26px;font-weight:700;color:var(--yellow);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.adv-stage__title{font-size:16px;font-weight:600;color:#fff;line-height:1.5;}
.adv-stage__desc{
  font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.6);
  margin-top:4px;max-width:520px;
}
@media (min-width:1024px){
  .adv-stage__media{aspect-ratio:5 / 4;}
  .adv-stage__cap{
    position:absolute;left:0;right:0;bottom:0;
    padding:56px 26px 22px;
    background:linear-gradient(180deg,rgba(4,36,63,0),rgba(4,36,63,.9));
    margin:0;
  }
}

/* ---------- 来样定制流程 ---------- */
.process{background:var(--paper);padding:64px 0;}
@media (min-width:768px){ .process{padding:88px 0;} }
@media (min-width:1200px){ .process{padding:104px 0;} }

.steps{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  margin-top:8px;
}
@media (min-width:1024px){
  .steps{
    grid-template-columns:repeat(5,1fr);
    gap:0;
  }
}
.step{
  position:relative;
  padding:20px 18px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:2px;
  transition:border-color .35s var(--ease),transform .45s var(--ease),
             box-shadow .45s var(--ease);
}
.step:hover{
  border-color:#CBE0F4;
  transform:translateY(-4px);
  box-shadow:0 18px 34px rgba(6,39,71,.08);
}
.step__no{
  display:block;
  font-size:13px;letter-spacing:.1em;color:var(--blue);
  font-variant-numeric:tabular-nums;
}
.step__name{
  font-size:17px;font-weight:600;color:var(--ink);
  margin-top:8px;line-height:1.5;
}
.step__desc{
  font-size:13.5px;line-height:1.7;color:var(--muted);
  margin-top:8px;
}
.step__line{
  display:none;
}
@media (min-width:1024px){
  .steps{gap:20px;}
  .step{padding:26px 22px 28px;}
  .step__line{
    display:block;position:absolute;
    top:44px;right:-20px;
    width:20px;height:1px;background:#C9D9E8;
  }
  .step__line::after{
    content:"";position:absolute;right:0;top:-3px;
    width:7px;height:7px;
    border-top:1px solid #C9D9E8;border-right:1px solid #C9D9E8;
    transform:rotate(45deg);
  }
}
.step:nth-child(5) .step__line{display:none;}

/* ---------- 关于我们 ---------- */
.about{background:#fff;}
.about__grid{
  display:grid;grid-template-columns:1fr;gap:28px;
  align-items:center;
}
@media (min-width:1024px){
  .about__grid{grid-template-columns:1fr 1.06fr;gap:clamp(32px,4vw,64px);}
}
.about__media{
  position:relative;overflow:hidden;border-radius:2px;
  background:var(--paper);
}
.about__media img{
  width:100%;aspect-ratio:4 / 3;object-fit:cover;
  transition:transform 1s var(--ease);
}
.about__media:hover img{transform:scale(1.04);}
.about__media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:40px 20px 16px;
  font-size:12.5px;letter-spacing:.03em;color:rgba(255,255,255,.86);
  background:linear-gradient(180deg,rgba(4,36,63,0),rgba(4,36,63,.82));
}
@media (min-width:1024px){
  .about__media img{aspect-ratio:5 / 4;}
  .about__media figcaption{padding:56px 26px 22px;font-size:13px;}
}
.about__lead{
  font-size:clamp(17px,2.4vw,21px);
  font-weight:600;line-height:1.7;
  color:var(--ink);
  margin-bottom:16px;
}
.about__text p{
  font-size:15px;line-height:1.95;color:var(--body);
  margin-bottom:14px;
}
.about__facts{
  margin-top:24px;
  border-top:1px solid var(--line);
}
.about__facts li{
  display:grid;
  grid-template-columns:34px 74px 1fr;
  align-items:center;
  gap:10px;
  padding:13px 0;
  border-bottom:1px solid var(--line);
}
.about__facts i{
  font-size:15px;color:var(--blue);
}
.about__facts span{
  font-size:13px;color:var(--muted);letter-spacing:.03em;
}
.about__facts strong{
  font-size:14.5px;font-weight:500;color:var(--ink);
}
@media (max-width:400px){
  .about__facts li{grid-template-columns:30px 1fr;}
  .about__facts span{display:none;}
}
.about__more{text-align:center;margin-top:36px;}
@media (min-width:1024px){ .about__more{margin-top:52px;} }

/* ---------- 公司实力 ---------- */
.strength{background:#fff;}
.strength__nav{display:flex;gap:8px;flex:0 0 auto;}
.round-btn{
  display:grid;place-items:center;
  width:44px;height:44px;
  border:1px solid #D8E4F0;border-radius:50%;
  color:var(--ink);font-size:16px;
  transition:background .3s,color .3s,border-color .3s,transform .3s var(--ease);
}
.round-btn:hover{background:var(--blue);border-color:var(--blue);color:#fff;transform:translateY(-2px);}

.strSwiper{overflow:hidden;margin-inline:-2px;padding-inline:2px;}
.str-card{
  position:relative;overflow:hidden;border-radius:2px;
  background:var(--paper);
  cursor:default;
}
.str-card img{
  width:100%;aspect-ratio:4 / 3;object-fit:cover;
  transition:transform .9s var(--ease);
}
.str-card:hover img{transform:scale(1.05);}
.str-card figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:46px 18px 14px;
  font-size:13px;color:rgba(255,255,255,.92);
  background:linear-gradient(180deg,rgba(4,36,63,0),rgba(4,36,63,.8));
  letter-spacing:.02em;
}

/* ---------- 新闻 ---------- */
.news{background:var(--paper);}
.news__grid{
  display:grid;grid-template-columns:1fr;gap:18px;
}
@media (min-width:700px){ .news__grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1024px){ .news__grid{grid-template-columns:repeat(3,1fr);gap:24px;} }

.news-card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:2px;
  overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),
             border-color .45s var(--ease);
}
.news-card:hover{
  transform:translateY(-6px);
  border-color:#CFE1F3;
  box-shadow:0 22px 44px rgba(6,39,71,.10);
}
.news-card__pic{overflow:hidden;aspect-ratio:16 / 10;}
.news-card__pic img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .9s var(--ease);
}
.news-card:hover .news-card__pic img{transform:scale(1.06);}
.news-card__body{
  display:flex;flex-direction:column;flex:1 1 auto;
  padding:20px 20px 22px;
}
.news-card__date{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--muted);
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.news-card__date i{font-size:12px;color:var(--blue-300);}
.news-card__title{
  font-size:18px;font-weight:600;line-height:1.55;
  color:var(--ink);
  margin:10px 0 8px;
  transition:color .3s;
}
.news-card:hover .news-card__title{color:var(--blue);}
.news-card__desc{
  font-size:14px;line-height:1.8;color:var(--body);
  margin-bottom:16px;
  flex:1 1 auto;
}
.news-card__link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--blue);
  align-self:flex-start;
}
.news-card__link i{font-size:12px;transition:transform .3s var(--ease);}
.news-card:hover .news-card__link i{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;
  background:linear-gradient(160deg,#04243F 0%,#052E4E 55%,#063A60 100%);
  color:rgba(255,255,255,.62);
  padding:56px 0 0;
  overflow:hidden;
}
.footer__texture{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 65%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 65%);
}
.footer .container{position:relative;z-index:1;}
.footer__grid{
  display:grid;grid-template-columns:1fr;gap:34px;
}
@media (min-width:900px){
  .footer{padding:72px 0 0;}
  .footer__grid{grid-template-columns:1.3fr 1.15fr 1fr;gap:clamp(28px,4vw,64px);}
}
.footer__navs{display:flex;gap:clamp(24px,3vw,52px);}
@media (max-width:520px){
  .footer__navs{gap:24px;}
}
.footer__logo{
  height:38px;width:auto;
  filter:brightness(0) invert(1);
  opacity:.95;
}
@media (min-width:768px){ .footer__logo{height:44px;} }
.footer__name{
  margin-top:14px;
  font-size:15px;font-weight:500;letter-spacing:.02em;
  color:rgba(255,255,255,.9);
}
.footer__intro{
  font-size:14px;line-height:1.9;
  color:rgba(255,255,255,.58);
  max-width:400px;margin-top:16px;
}
.footer__qr{
  display:inline-flex;align-items:center;gap:14px;
  margin-top:22px;
  padding:8px 14px 8px 8px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:2px;
}
.footer__qr img{width:76px;height:auto;border:2px solid #fff;}
.footer__qr span{font-size:12.5px;color:rgba(255,255,255,.7);letter-spacing:.03em;}

.footer__title{
  position:relative;
  font-size:15px;font-weight:600;color:#fff;
  padding-bottom:12px;margin-bottom:14px;
}
.footer__title::after{
  content:"";position:absolute;left:0;bottom:0;
  width:26px;height:2px;background:var(--yellow);
}
.footer__title--gap{margin-top:26px;}
.footer__links{display:flex;flex-direction:column;gap:2px;}
.footer__links li a{
  display:inline-block;
  padding:7px 0;
  font-size:14px;color:rgba(255,255,255,.62);
  transition:color .25s,transform .25s var(--ease);
}
.footer__links li a:hover{color:#fff;transform:translateX(3px);}
.footer__contact{display:flex;flex-direction:column;gap:10px;}
.footer__contact li{
  display:grid;grid-template-columns:20px 1fr;gap:8px;
  font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.62);
}
.footer__contact i{font-size:14px;color:var(--blue-300);padding-top:2px;}
.footer__contact a:hover{color:#fff;}
.footer__call{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;
  height:42px;padding:0 20px;
  font-size:13.5px;
  border:1px solid rgba(255,255,255,.22);
  border-radius:2px;
  color:rgba(255,255,255,.82);
  transition:background .3s,border-color .3s,color .3s;
}
.footer__call:hover{background:var(--blue);border-color:var(--blue);color:#fff;}
.footer__call i{font-size:13px;}
.footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  margin-top:40px;
  padding:18px 0 22px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:12.5px;color:rgba(255,255,255,.4);
  letter-spacing:.02em;
}
.footer__bottom p{margin:0;}

.hero__pager .hero-dot{
  display:block;
  width:38px;height:3px;
  margin-right:8px;
  background:rgba(10,44,80,.22);
  cursor:pointer;
  transition:background .3s var(--ease),width .3s var(--ease);
}
.hero__pager .hero-dot.is-on{background:var(--yellow);width:52px;}
@media (min-width:768px){
  .hero__pager .hero-dot{width:44px;height:3px;}
  .hero__pager .hero-dot.is-on{width:64px;}
}

.pd-note{
  margin-top:22px;
  font-size:13px;line-height:1.8;color:var(--muted);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:16px;bottom:20px;z-index:110;
  display:grid;place-items:center;
  width:44px;height:44px;
  background:#fff;color:var(--ink);
  border:1px solid var(--line);border-radius:50%;
  box-shadow:0 10px 26px rgba(6,39,71,.14);
  font-size:17px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .35s var(--ease),transform .35s var(--ease),
             visibility .35s,background .3s,color .3s;
}
.to-top.is-on{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--blue);color:#fff;}
@media (min-width:768px){ .to-top{right:26px;bottom:28px;width:48px;height:48px;} }

/* ---------- 弹层（产品中心 / 详情） ---------- */
.panel{
  position:fixed;inset:0;z-index:200;
  visibility:hidden;pointer-events:none;
}
.panel.is-open{visibility:visible;pointer-events:auto;}
.panel__mask{
  position:absolute;inset:0;
  background:rgba(4,26,45,.52);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;transition:opacity .35s var(--ease);
}
.panel.is-open .panel__mask{opacity:1;}
.panel__sheet{
  position:absolute;top:0;right:0;bottom:0;
  width:min(620px,100%);
  display:flex;flex-direction:column;
  background:#fff;
  transform:translateX(100%);
  transition:transform .45s var(--ease);
  box-shadow:-24px 0 60px rgba(4,26,45,.18);
}
.panel.is-open .panel__sheet{transform:none;}
.panel__head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 22px 18px;
  border-bottom:1px solid var(--line);
}
.panel__kicker{font-size:12px;letter-spacing:.1em;color:var(--blue);}
.panel__title{font-size:22px;font-weight:700;color:var(--ink);line-height:1.4;margin-top:4px;}
.panel__close{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;font-size:16px;color:var(--ink);
  border:1px solid var(--line);border-radius:50%;
  transition:background .3s,color .3s,border-color .3s;
}
.panel__close:hover{background:var(--blue);border-color:var(--blue);color:#fff;}
.panel__body{
  flex:1 1 auto;overflow-y:auto;
  padding:22px 22px 44px;
  -webkit-overflow-scrolling:touch;
}
@media (min-width:768px){
  .panel__head{padding:28px 32px 22px;}
  .panel__body{padding:28px 32px 56px;}
}

.pl-group{margin-bottom:30px;}
.pl-group__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.pl-group__name{font-size:15px;font-weight:600;color:var(--ink);}
.pl-group__count{font-size:12.5px;color:var(--muted);}
.pl-list{display:grid;grid-template-columns:1fr;gap:12px;}
@media (min-width:520px){ .pl-list{grid-template-columns:repeat(2,1fr);} }
.pl-item{
  display:grid;grid-template-columns:88px 1fr;gap:12px;
  align-items:center;
  padding:10px;text-align:left;
  border:1px solid var(--line);border-radius:2px;
  background:#fff;
  transition:border-color .3s,background .3s,transform .3s var(--ease);
}
.pl-item:hover{border-color:#C9DDF0;background:var(--paper);transform:translateY(-2px);}
.pl-item img{width:88px;aspect-ratio:4/3;object-fit:cover;border-radius:2px;}
.pl-item__name{display:block;font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.45;}
.pl-item__cat{display:block;font-size:12px;color:var(--muted);margin-top:3px;}

.pd-media{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:2px;
  background:var(--paper);margin-bottom:20px;
}
.pd-tag{
  display:inline-block;
  font-size:12px;color:var(--blue);
  background:var(--blue-100);
  padding:4px 10px;border-radius:2px;
  margin:0 6px 8px 0;
}
.pd-desc{font-size:14.5px;line-height:1.9;color:var(--body);margin:12px 0 20px;}
.pd-meta{border-top:1px solid var(--line);margin-bottom:24px;}
.pd-meta li{
  display:grid;grid-template-columns:84px 1fr;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-size:13.5px;
}
.pd-meta span{color:var(--muted);}
.pd-meta strong{font-weight:500;color:var(--ink);line-height:1.7;}
.pd-cta{display:flex;flex-wrap:wrap;gap:10px;}
.pd-cta .btn{height:46px;font-size:14px;}

/* 关于我们弹层 */
.ci-lead{font-size:16px;line-height:1.9;color:var(--ink);font-weight:600;margin-bottom:14px;}
.ci-p{font-size:14.5px;line-height:1.95;color:var(--body);margin-bottom:14px;}
.ci-quote{
  margin:22px 0;
  padding:16px 18px;
  background:var(--paper);
  border-left:3px solid var(--yellow);
  font-size:14px;line-height:1.9;color:var(--ink);
}
.ci-facts{display:grid;gap:10px;margin-top:8px;}
.ci-facts li{
  display:grid;grid-template-columns:80px 1fr;gap:12px;
  font-size:13.5px;padding:8px 0;border-bottom:1px solid var(--line);
}
.ci-facts span{color:var(--muted);}

/* ---------- 结尾 ---------- */