/* 百援精养・海棠湾店 — sectioned official theme */
:root{
  --by-red:#E31C23;
  --by-blue:#1B4F9C;
  --by-ink:#121820;
  --by-steel:#2A3442;
  --by-fog:#EEF1F5;
  --by-mist:#E3E8EF;
  --by-line:#D5DCE6;
  --by-paper:#fff;
  --by-shell:1240px;
  --by-gap:1rem;
  --by-top:clamp(3.35rem, 3rem + 1.2vw, 4.15rem);
  --by-radius:10px;
  --by-font:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --by-shadow:0 10px 28px rgba(18,24,32,.08);
  /* 全站随屏宽缩放的字阶 / 控件尺寸 */
  --by-fs-hero:clamp(1.05rem, .55rem + 2.35vw, 2.75rem);
  --by-fs-display:clamp(1.2rem, .75rem + 1.7vw, 2.35rem);
  --by-fs-title:clamp(1.15rem, .85rem + 1.15vw, 1.9rem);
  --by-fs-lead:clamp(.88rem, .8rem + .35vw, 1.05rem);
  --by-btn-h:clamp(2.15rem, 1.7rem + 1.1vw, 2.65rem);
  --by-btn-px:clamp(.9rem, .55rem + 1.1vw, 1.25rem);
  --by-btn-py:clamp(.42rem, .28rem + .45vw, .65rem);
  --by-btn-fs:clamp(.82rem, .74rem + .28vw, .95rem);
}
*,*:before,*:after{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  /* 根字号随屏宽变，rem 控件/文案一起缩 */
  font-size:clamp(13px, 12.2px + .28vw, 15px);
}
html,body{margin:0;padding:0;overflow-x:hidden}
body.byjy-body{
  font-family:var(--by-font);
  color:var(--by-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(27,79,156,.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(227,28,35,.06), transparent 50%),
    var(--by-fog);
  line-height:1.7;
  font-size:1rem;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.byjy-shell{width:min(100% - 2.25rem, var(--by-shell));margin-inline:auto}
.byjy-kicker{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--by-blue);margin-bottom:.45rem;
}
.byjy-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:var(--by-btn-h);padding:var(--by-btn-py) var(--by-btn-px);
  font-size:var(--by-btn-fs);
  background:var(--by-red);color:#fff;font-weight:700;letter-spacing:.03em;
  border:0;border-radius:999px;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.byjy-btn:hover{background:#c4161c;transform:translateY(-1px);box-shadow:0 8px 18px rgba(227,28,35,.28)}
.byjy-btn--light{
  background:rgba(255,255,255,.94);color:var(--by-ink);
}
.byjy-btn--light:hover{background:#fff;color:var(--by-red);box-shadow:0 10px 22px rgba(0,0,0,.18)}
.byjy-btn--ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);
}
.byjy-btn--ghost:hover{background:#fff;color:var(--by-ink);box-shadow:none}
.byjy-textlink{
  display:inline-flex;align-items:center;gap:.25rem;
  color:var(--by-red);font-weight:700;font-size:.92rem;white-space:nowrap;
}
.byjy-textlink:hover{color:#c4161c}
.byjy-chips{display:flex;flex-wrap:wrap;gap:.45rem;margin:1rem 0 1.25rem}
.byjy-chips li{
  padding:.32rem .7rem;border:1px solid var(--by-line);border-radius:999px;
  background:#fff;font-size:.82rem;font-weight:600;color:var(--by-steel);
}

/* header */
.byjy-top{
  position:sticky;top:0;z-index:100;
  background:rgba(18,24,32,.92);backdrop-filter:saturate(140%) blur(10px);
  color:#fff;height:var(--by-top);
}
.byjy-top.is-scrolled{box-shadow:0 10px 28px rgba(0,0,0,.22)}
.byjy-top__inner{display:flex;align-items:center;gap:1rem;height:var(--by-top)}
.byjy-brand{display:flex;align-items:center;gap:.65rem;min-width:0}
.byjy-brand img{height:clamp(1.85rem, 1.55rem + .8vw, 2.25rem);width:auto;object-fit:contain}
.byjy-brand__name{font-weight:800;font-size:.98rem;white-space:nowrap}
.byjy-nav{display:flex;align-items:center;gap:.1rem;margin-left:auto}
.byjy-nav__item{position:relative}
.byjy-nav__a{
  display:block;padding:.5rem .7rem;color:rgba(255,255,255,.86);
  font-weight:600;font-size:.9rem;border-radius:999px;
}
.byjy-nav__item[data-on="1"]>.byjy-nav__a,
.byjy-nav__a[data-on="1"],
.byjy-nav__a:hover{color:#fff;background:rgba(255,255,255,.1)}
.byjy-nav__drop{
  display:none;position:absolute;left:0;top:100%;min-width:11rem;
  background:#fff;color:var(--by-ink);padding:.45rem 0;
  box-shadow:var(--by-shadow);border-radius:12px;
}
.byjy-nav__item:hover .byjy-nav__drop{display:block}
.byjy-nav__drop a{display:block;padding:.45rem .95rem;font-size:.9rem}
.byjy-nav__drop a:hover{background:var(--by-fog);color:var(--by-red)}
.byjy-top__cta{
  margin-left:.45rem;padding:.5rem 1rem;background:var(--by-red);
  color:#fff;font-weight:700;border-radius:999px;white-space:nowrap;
}
.byjy-burger{display:none;width:2.4rem;height:2.4rem;border:0;background:transparent;padding:0;margin-left:auto}
.byjy-burger span,.byjy-burger span:before,.byjy-burger span:after{
  display:block;width:1.25rem;height:2px;background:#fff;margin:0 auto;position:relative;
}
.byjy-burger span:before,.byjy-burger span:after{content:"";position:absolute;left:0}
.byjy-burger span:before{top:-6px}
.byjy-burger span:after{top:6px}

.byjy-drawer[hidden]{display:none!important;pointer-events:none!important}
.byjy-drawer{position:fixed;inset:0;z-index:120}
.byjy-drawer__mask{position:absolute;inset:0;background:rgba(0,0,0,.45)}
.byjy-drawer__panel{
  position:absolute;top:0;right:0;width:min(86vw,20rem);height:100%;
  background:var(--by-ink);color:#fff;display:flex;flex-direction:column;
}
.byjy-drawer__scroll{overflow:auto;padding:1.25rem 1rem 1rem;flex:1;-webkit-overflow-scrolling:touch}
.byjy-drawer__scroll a{display:block;padding:.7rem .4rem;border-bottom:1px solid rgba(255,255,255,.08);font-weight:600}
.byjy-drawer__sub{padding-left:1rem!important;color:rgba(255,255,255,.72);font-weight:500!important}
.byjy-drawer__cta{display:block;margin:1rem;text-align:center;background:var(--by-red);padding:.85rem;font-weight:700;border-radius:999px}

/* hero — 全端等比（宽随屏，高按比例） */
.byjy-hero{
  position:relative;z-index:0;
  width:100%;aspect-ratio:16 / 9;height:auto;min-height:0;
  overflow:hidden;background:var(--by-ink);
}
.byjy-hero__track{position:absolute;inset:0}
.byjy-hero__slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity .8s ease;
  pointer-events:none;
}
.byjy-hero__slide.is-on{opacity:1;z-index:1;pointer-events:auto}
.byjy-hero__slide::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(16,21,28,.48) 0%,rgba(16,21,28,.22) 55%,rgba(27,79,156,.26) 100%);
  pointer-events:none;
}
.byjy-hero__copy{
  --by-hero-h1: var(--by-fs-hero);
  --by-hero-pad-top: clamp(1.1rem, 3.5vw + .4rem, 5.5rem);
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;align-items:flex-start;justify-content:center;
  padding:calc(var(--by-hero-pad-top) + .2rem) 0 clamp(1.6rem,5%,4.5rem);color:#fff;
}
.byjy-hero__copy h1{
  margin:0;max-width:min(40rem,100%);font-weight:800;
  font-size:var(--by-hero-h1);line-height:1.28;letter-spacing:.02em;
  text-wrap:balance;
}
.byjy-hero__sub{
  margin:clamp(.45rem,1.2vw,1rem) 0 clamp(.7rem,2vw,1.5rem);
  max-width:34rem;color:rgba(255,255,255,.86);
  font-size:var(--by-fs-lead);
}
.byjy-hero__bar{
  position:absolute;left:50%;bottom:clamp(.75rem,1.5vw,1.85rem);transform:translateX(-50%);z-index:3;
  display:flex;align-items:center;gap:clamp(.65rem,1.5vw,1.1rem);
}
.byjy-hero__nav{
  position:relative;width:2rem;height:2rem;border:0;padding:0;
  background:transparent;color:rgba(255,255,255,.72);cursor:pointer;
}
.byjy-hero__nav:hover{color:#fff}
.byjy-hero__nav::before{
  content:"";position:absolute;top:50%;left:50%;
  width:.42rem;height:.42rem;border-right:1px solid currentColor;border-bottom:1px solid currentColor;
}
.byjy-hero__nav--prev::before{transform:translate(-30%,-50%) rotate(135deg)}
.byjy-hero__nav--next::before{transform:translate(-70%,-50%) rotate(-45deg)}
.byjy-hero__dots{display:flex;align-items:center;gap:.45rem}
.byjy-hero__dots button{
  width:.4rem;height:.4rem;border:0;padding:0;border-radius:0;
  background:rgba(255,255,255,.35);cursor:pointer;transition:background .2s ease,width .2s ease;
}
.byjy-hero__dots button.is-on{width:1.35rem;background:var(--by-red)}

/* sections */
.byjy-sec{padding:3rem 0 3.35rem}
.byjy-sec--fog{background:rgba(255,255,255,.55)}
/* 首页条纹底：服务区专用 */
.byjy-sec--stripe{
  background:
    linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,.7)),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 11px,
      rgba(27,79,156,.035) 11px,
      rgba(27,79,156,.035) 12px
    );
}
/* 资讯区：独立浅雾底，不用斜纹，避免与服务区雷同 */
.byjy-home-news{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  background:
    radial-gradient(ellipse 70% 55% at 50% -10%, rgba(27,79,156,.09), transparent 70%),
    linear-gradient(180deg, #edf2f8 0%, #f5f7fb 42%, #fbfcfd 100%);
}
.byjy-home-news > .byjy-shell{position:relative;z-index:1}
.byjy-home-news .byjy-news-list{gap:1rem}
.byjy-home-news .byjy-news-row{
  border-radius:18px;
  border-color:rgba(18,24,32,.07);
  box-shadow:0 14px 34px rgba(18,24,32,.08);
  padding:.75rem;
  background:#fff;
}
.byjy-home-news .byjy-news-row:hover{
  border-color:rgba(27,79,156,.28);
  box-shadow:0 18px 40px rgba(18,24,32,.12);
}
.byjy-home-news .byjy-news-row__thumb{
  border-radius:12px;
}
.byjy-sec__head{margin-bottom:1.5rem}
.byjy-sec__head h2{font-size:var(--by-fs-title);font-weight:800}
.byjy-sec__head p{color:#617084;margin-top:.4rem;max-width:40rem}
.byjy-sec__head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;
}

/* equal grids */
.byjy-grid{
  display:grid;gap:1rem;
}
.byjy-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.byjy-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
/* 首页五项服务：横向工位跑道（可滑动） */
.byjy-home-svc{
  overflow:hidden;
}
.byjy-home-svc__head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  margin-bottom:1.5rem;
}
.byjy-home-svc__head h2{font-size:var(--by-fs-title);font-weight:800}
.byjy-home-svc__head p{color:#617084;margin-top:.4rem;max-width:38rem}
.byjy-home-svc__tools{
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
}
.byjy-home-svc__nav{display:flex;gap:.45rem}
.byjy-home-svc__btn{
  width:2.55rem;height:2.55rem;border-radius:999px;
  border:1px solid var(--by-line);background:#fff;cursor:pointer;
  position:relative;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.byjy-home-svc__btn:hover{border-color:var(--by-blue);background:#f4f7fb;transform:translateY(-1px)}
.byjy-home-svc__btn::before{
  content:"";position:absolute;inset:0;margin:auto;
  width:.55rem;height:.55rem;
  border-left:2px solid var(--by-ink);border-bottom:2px solid var(--by-ink);
  transform:rotate(45deg) translate(.1rem, -.05rem);
}
.byjy-home-svc__btn--next::before{transform:rotate(-135deg) translate(.1rem, -.05rem)}
.byjy-home-svc__rail-wrap{position:relative}
.byjy-home-svc__rail{
  display:flex;align-items:flex-start;gap:1rem;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  padding:
    .35rem
    max(1.125rem, calc((100vw - var(--by-shell)) / 2))
    2.75rem
    max(1.125rem, calc((100vw - var(--by-shell)) / 2));
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  cursor:grab;user-select:none;
}
.byjy-home-svc__rail.is-dragging{
  cursor:grabbing;scroll-snap-type:none;scroll-behavior:auto;
}
.byjy-home-svc__rail.is-dragging .byjy-home-svc__bay{pointer-events:none}
.byjy-home-svc__rail::-webkit-scrollbar{display:none}
.byjy-home-svc__bay{
  flex:0 0 clamp(15.5rem, 24vw, 19.5rem);
  scroll-snap-align:start;
  display:flex;flex-direction:column;
  background:var(--by-paper);
  border:1px solid rgba(18,24,32,.08);
  border-radius:18px;
  overflow:hidden;
  box-shadow:0 14px 34px rgba(18,24,32,.08);
  transform:translateY(0);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.byjy-home-svc__bay:nth-child(even){transform:translateY(1.35rem)}
.byjy-home-svc__bay:hover{
  border-color:rgba(227,28,35,.28);
  box-shadow:0 18px 40px rgba(18,24,32,.14);
}
.byjy-home-svc__bay:nth-child(odd):hover{transform:translateY(-.2rem)}
.byjy-home-svc__bay:nth-child(even):hover{transform:translateY(1.15rem)}
.byjy-home-svc__bay-pic{
  position:relative;margin:0;aspect-ratio:3/4;overflow:hidden;background:var(--by-mist);
}
.byjy-home-svc__bay-pic img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .55s ease;
}
.byjy-home-svc__bay:hover .byjy-home-svc__bay-pic img{transform:scale(1.06)}
.byjy-home-svc__bay-num{
  position:absolute;left:.85rem;top:.75rem;
  font-size:2.4rem;font-weight:800;line-height:1;letter-spacing:.04em;
  color:#fff;
  text-shadow:0 6px 18px rgba(0,0,0,.35);
}
.byjy-home-svc__bay-board{
  padding:1rem 1.05rem 1.15rem;
  display:flex;flex-direction:column;gap:.4rem;min-height:8.6rem;
  background:
    linear-gradient(180deg, #fff 0%, #f7f9fc 100%);
}
.byjy-home-svc__bay-board h3{
  margin:0;font-size:1.12rem;font-weight:800;line-height:1.35;color:var(--by-ink);
}
.byjy-home-svc__bay-board p{
  margin:0;color:#617084;font-size:.86rem;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1;
}
.byjy-home-svc__bay-more{
  display:inline-flex;align-items:center;gap:.3rem;
  margin-top:.15rem;color:var(--by-red);font-weight:700;font-size:.88rem;
}
.byjy-home-svc__bay-more::after{
  content:"";width:.42rem;height:.42rem;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(-45deg);
}
.byjy-home-svc__bay:hover .byjy-home-svc__bay-board h3{color:var(--by-blue)}
.byjy-home-svc__hint{
  width:min(100% - 2.25rem, var(--by-shell));
  margin:0 auto;padding-top:.15rem;
  color:#8090a3;font-size:.82rem;letter-spacing:.06em;
}

.byjy-grid--svc{display:flex;flex-direction:column;gap:.85rem}
.byjy-grid--svc > *{width:100%;max-width:none;flex:none}

[data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .45s ease,transform .45s ease;
}
[data-reveal].is-in{opacity:1;transform:none}

/* about home — left copy + right media, aligned to hbsjhq */
.byjy-about-home{background:rgba(255,255,255,.72)}
.byjy-about-home__grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(1.75rem,4vw,3.5rem);align-items:center;
}
.byjy-about-home__copy{
  min-width:0;display:flex;flex-direction:column;justify-content:center;padding:.35rem 0;
}
.byjy-about-home__copy h2{
  margin:0 0 1rem;font-weight:800;
  font-size:var(--by-fs-display);letter-spacing:.02em;color:var(--by-ink);
}
.byjy-about-home__text{
  margin:0 0 1.5rem;max-width:34rem;
  color:var(--by-steel);font-size:var(--by-fs-lead);line-height:1.85;
}
.byjy-about-home__media{
  margin:0;overflow:hidden;border-radius:var(--by-radius);
  background:var(--by-mist);aspect-ratio:16/11;max-height:22rem;
  box-shadow:var(--by-shadow);
}
.byjy-about-home__media img{
  width:100%;height:100%;object-fit:cover;object-position:center;
  transition:transform .7s ease;
}
.byjy-about-home__media:hover img{transform:scale(1.03)}

/* service / text cards */
.byjy-card{
  display:flex;flex-direction:column;background:var(--by-paper);
  border-radius:var(--by-radius);overflow:hidden;box-shadow:var(--by-shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.byjy-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(18,24,32,.14)}
.byjy-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--by-mist)}
.byjy-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.byjy-card:hover .byjy-card__media img{transform:scale(1.04)}
.byjy-card__body{padding:1rem 1.05rem 1.15rem;flex:1}
.byjy-card__num{display:inline-block;font-size:.78rem;font-weight:800;color:var(--by-blue);letter-spacing:.08em;margin-bottom:.25rem}
.byjy-card__body strong{display:block;font-size:1.05rem;font-weight:800;margin-bottom:.35rem}
.byjy-card__body p{color:#617084;font-size:.9rem;line-height:1.65}
.byjy-card--text .byjy-card__body{padding:1.25rem 1.2rem 1.35rem}
.byjy-card--text .byjy-textlink{margin-top:.85rem}

/* equal shot grid */
.byjy-shot{
  display:block;position:relative;border-radius:var(--by-radius);overflow:hidden;
  background:var(--by-mist);box-shadow:var(--by-shadow);
}
.byjy-shot img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .45s ease}
.byjy-shot:hover img{transform:scale(1.04)}
.byjy-shot span{
  position:absolute;left:0;right:0;bottom:0;padding:.7rem .85rem;
  background:linear-gradient(transparent,rgba(12,16,22,.78));
  color:#fff;font-weight:700;font-size:.9rem;
}

/* news list — aligned to yxsw newsroom row cards */
.byjy-news-page{background:rgba(255,255,255,.4)}
.byjy-news-tabs{
  display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 1.35rem;
}
.byjy-news-tabs a{
  padding:.45rem 1rem;border:1px solid var(--by-line);border-radius:999px;
  color:#617084;font-size:.9rem;font-weight:600;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.byjy-news-tabs a:hover,
.byjy-news-tabs a.is-on{
  color:#fff;background:var(--by-blue);border-color:var(--by-blue);
}
.byjy-news-list{display:grid;gap:1.15rem}
.byjy-news-row{
  display:flex;align-items:stretch;gap:0;min-height:13.75rem;
  background:var(--by-paper);border:1px solid rgba(18,24,32,.08);
  border-radius:12px;overflow:hidden;padding:.65rem;
  box-shadow:none;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.byjy-news-row:hover{
  transform:translateY(-2px);
  border-color:rgba(227,28,35,.35);
  box-shadow:0 12px 28px rgba(18,24,32,.1);
}
.byjy-news-row__thumb{
  flex:0 0 20rem;max-width:40%;margin:0;border-radius:8px;overflow:hidden;
  background:var(--by-mist);border:1px solid rgba(18,24,32,.08);min-height:12.5rem;
  aspect-ratio:16/11;
}
.byjy-news-row__thumb img{
  width:100%;height:100%;min-height:0;object-fit:cover;display:block;
  transition:transform .55s ease;
}
.byjy-news-row:hover .byjy-news-row__thumb img{transform:scale(1.05)}
.byjy-news-row__body{
  flex:1 1 auto;min-width:0;padding:1.1rem 1.25rem 1.1rem 1.35rem;
  display:flex;flex-direction:column;justify-content:center;gap:.55rem;
}
.byjy-news-row__meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45rem .85rem;
  margin:0;color:#8090a3;font-size:.82rem;
}
.byjy-news-row__sort{color:var(--by-blue);font-weight:700;font-size:.78rem;letter-spacing:.02em}
.byjy-news-row__meta time{color:var(--by-red);font-weight:600}
.byjy-news-row__body strong{
  display:block;font-size:1.15rem;font-weight:800;line-height:1.45;margin:0;color:var(--by-ink);
}
.byjy-news-row__body p{
  margin:0;color:#617084;font-size:.9rem;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.byjy-news-row:hover .byjy-news-row__body strong{color:var(--by-blue)}

/* CTA band */
.byjy-cta-band{
  margin-top:.5rem;
  background:linear-gradient(120deg,#121820 0%,#1a2740 55%,#1b4f9c 100%);
  color:#fff;padding:2.4rem 0;
}
.byjy-cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
}
.byjy-kicker--light{color:#9ec0ff}
.byjy-cta-band h2{font-size:var(--by-fs-title);font-weight:800;margin:.25rem 0 .55rem}
.byjy-cta-band p{color:rgba(255,255,255,.75);max-width:34rem;margin:0}
.byjy-cta-band__actions{display:flex;flex-direction:column;align-items:flex-end;gap:.85rem}
.byjy-cta-band__phone-wrap{text-align:right}
.byjy-cta-band__phone-label{
  display:block;margin-bottom:.2rem;
  color:rgba(255,255,255,.55);font-size:.78rem;font-weight:600;letter-spacing:.08em;
}
.byjy-cta-band__phone{
  display:block;
  font-size:clamp(1.2rem, .85rem + 1.5vw, 1.9rem);font-weight:800;letter-spacing:.04em;color:#fff;
  line-height:1.2;user-select:text;cursor:text;
}
.byjy-cta-band__btn{
  min-width:9.5rem;background:var(--by-red);color:#fff;
  box-shadow:0 10px 22px rgba(227,28,35,.28);
}
.byjy-cta-band__btn:hover{
  background:#c4161c;color:#fff;box-shadow:0 12px 26px rgba(227,28,35,.36);
}

/* pagehead — 栏目 banner 全端 4:1 等比缩放 */
.byjy-pagehead{
  position:relative;color:#fff;width:100%;
  aspect-ratio:4 / 1;height:auto;min-height:0;
  padding:clamp(.75rem,2.2vw,1.85rem) 0;
  background-color:var(--by-ink);
  background-position:center center;
  background-size:cover;
  background-repeat:no-repeat;
  display:flex;align-items:center;
  box-sizing:border-box;
}
.byjy-pagehead::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(16,21,28,.46) 0%,rgba(16,21,28,.22) 48%,rgba(27,79,156,.28) 100%);
  pointer-events:none;
}
.byjy-pagehead--fade::after{
  content:"";position:absolute;left:0;right:0;bottom:0;z-index:1;
  height:clamp(3.5rem,8vw,5.5rem);
  background:linear-gradient(180deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.55) 45%,#fff 100%);
  pointer-events:none;
}
.byjy-pagehead > .byjy-shell{position:relative;z-index:2;width:min(100% - 2.25rem, var(--by-shell));margin-inline:auto}
.byjy-pagehead h1{
  font-size:var(--by-fs-hero);margin:.45rem 0 0;font-weight:800;letter-spacing:.02em;line-height:1.25;
}
.byjy-pagehead__lead{margin:.55rem 0 0;max-width:34rem;opacity:.9;line-height:1.65;font-size:var(--by-fs-lead)}
.byjy-pagehead__lead:empty{display:none;margin:0}
.byjy-crumb{font-size:clamp(.75rem,1.3vw,.85rem);opacity:.82}
.byjy-crumb a:hover{text-decoration:underline;color:#fff}
.byjy-panel{padding:2rem 0 3rem}
.byjy-article{background:var(--by-paper);padding:1.5rem;border-radius:var(--by-radius);box-shadow:var(--by-shadow)}
.byjy-article__meta{color:#8090a3;font-size:.88rem;margin:.5rem 0 1.1rem;display:flex;gap:1rem;flex-wrap:wrap}
.byjy-rich{line-height:1.85;overflow-wrap:anywhere;color:var(--by-steel)}
.byjy-rich h2,.byjy-rich h3{margin:1.35rem 0 .55rem;font-weight:800;color:var(--by-ink)}
.byjy-rich h3{font-size:clamp(1.15rem,2vw,1.35rem)}
.byjy-rich p{margin:0 0 .85rem}
.byjy-rich ul,.byjy-rich ol{margin:0 0 1rem 1.15rem;list-style:disc}
.byjy-rich li{margin:.25rem 0}
.byjy-rich img{
  margin:.35rem 0 1rem;border-radius:var(--by-radius);width:100%;height:auto;
  display:block;box-shadow:var(--by-shadow);
}
.byjy-rich table{width:100%;border-collapse:collapse;display:block;overflow-x:auto}
.byjy-rich td,.byjy-rich th{border:1px solid var(--by-line);padding:.45rem .6rem}

/* service column: side nav + body (yxsw services IA) */
.byjy-svc-page{padding-top:1.75rem}
.byjy-svc-layout{
  display:grid;
  grid-template-columns:15.75rem minmax(0,1fr);
  gap:1.75rem;
  align-items:start;
}
.byjy-svc-side{
  position:sticky;top:5.75rem;
  background:var(--by-paper);
  border:1px solid rgba(18,24,32,.08);
  border-radius:var(--by-radius);
  overflow:hidden;
  box-shadow:var(--by-shadow);
}
.byjy-svc-side__tit{
  display:flex;align-items:center;justify-content:center;gap:.45rem;
  width:100%;margin:0;padding:1.05rem 1rem;
  border:0;background:var(--by-blue);color:#fff;
  font:inherit;font-weight:800;font-size:1.05rem;letter-spacing:.04em;
  cursor:default;
}
.byjy-svc-side__tit span{pointer-events:none}
.byjy-svc-side__nav a{
  display:block;padding:.82rem 1.15rem .82rem 1.35rem;
  border-top:1px solid rgba(18,24,32,.06);
  color:#4a5a6d;font-weight:650;font-size:.95rem;line-height:1.45;
  position:relative;transition:background .18s ease,color .18s ease;
}
.byjy-svc-side__nav a::before{
  content:"";position:absolute;left:.75rem;top:50%;
  width:.35rem;height:.35rem;border-radius:50%;
  background:#c9d2de;transform:translateY(-50%);
}
.byjy-svc-side__nav a:hover,
.byjy-svc-side__nav a.is-on{
  background:rgba(27,79,156,.08);color:var(--by-blue);
}
.byjy-svc-side__nav a.is-on::before,
.byjy-svc-side__nav a:hover::before{
  background:var(--by-blue);
}
.byjy-svc-body{min-width:0}
.byjy-svc-article{
  background:var(--by-paper);
  border:1px solid rgba(18,24,32,.08);
  border-radius:var(--by-radius);
  padding:1.35rem 1.45rem 1.5rem;
  box-shadow:var(--by-shadow);
  min-height:16rem;
}
.byjy-svc-cta{
  margin-top:1.15rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:1.1rem 1.25rem;
  background:linear-gradient(120deg,#f4f7fb 0%,#eef3fa 100%);
  border:1px solid rgba(27,79,156,.12);
  border-radius:var(--by-radius);
}
.byjy-svc-cta strong{display:block;font-size:1.05rem;font-weight:800;color:var(--by-ink);margin-bottom:.25rem}
.byjy-svc-cta p{margin:0;color:#617084;font-size:.9rem;line-height:1.6;max-width:36rem}

/* about page shell */
.byjy-about-page{
  position:relative;z-index:2;
  margin-top:0;
  background:#fff;
}
.byjy-about-article{
  max-width:66rem;margin-inline:auto;
  padding:1.25rem 0 0;
  background:transparent;box-shadow:none;border-radius:0;
}
.byjy-about-cta{
  max-width:66rem;margin:2rem auto 0;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:1.35rem 1.4rem;border-radius:var(--by-radius);
  background:linear-gradient(120deg,#121820 0%,#1a2740 60%,#1b4f9c 100%);color:#fff;
}
.byjy-about-cta h3{margin:0 0 .35rem;font-size:1.25rem;font-weight:800}
.byjy-about-cta p{margin:0;color:rgba(255,255,255,.75)}

.byjy-pager{display:flex;flex-wrap:wrap;gap:.45rem;justify-content:center;align-items:center;margin-top:1.5rem}
.byjy-pager .page-status,.byjy-pager .page-index,.byjy-pager .page-pre,.byjy-pager .page-numbar,.byjy-pager .page-next,.byjy-pager .page-last{display:contents}
.byjy-pager .page-status{display:inline;color:#8090a3;margin-right:.5rem}
.byjy-pager a,.byjy-pager .page-num-current{
  min-width:2.15rem;height:2.15rem;padding:0 .6rem;display:inline-flex;align-items:center;justify-content:center;
  background:var(--by-paper);border:1px solid var(--by-line);border-radius:999px;font-weight:600;
}
.byjy-pager .page-num-current{background:var(--by-red);border-color:var(--by-red);color:#fff}
.byjy-pager a[href="javascript:;"]{opacity:.4;pointer-events:none}
.byjy-adjacent{display:flex;justify-content:space-between;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}
.byjy-adjacent a{color:var(--by-blue);font-weight:600}

/* 资讯详情 — 参照 hbsjhq 阅读流（面包屑→标题→元信息→正文→上下篇行） */
.byjy-news-detail{
  padding:2rem 0 3.5rem;
  background:#fff;
}
.byjy-news-detail__shell{max-width:48rem}
.byjy-crumb--ink{
  color:#9aa3af;margin:0 0 1.35rem;font-size:.88rem;line-height:1.6;
}
.byjy-crumb--ink a{color:#6b7585}
.byjy-crumb--ink a:hover{color:var(--by-blue);text-decoration:underline}
.byjy-news-detail__article{background:transparent;border:0;box-shadow:none;padding:0;border-radius:0}
.byjy-news-detail__head{
  margin:0 0 1.6rem;padding-bottom:1.15rem;
  border-bottom:1px solid rgba(18,24,32,.08);
}
.byjy-news-detail__head h1{
  margin:0 0 .85rem;
  font-size:clamp(1.55rem,3vw,2.05rem);font-weight:800;line-height:1.4;color:var(--by-ink);
  letter-spacing:.01em;
}
.byjy-news-detail__meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45rem 1rem;
  color:#8090a3;font-size:.9rem;
}
.byjy-news-detail__meta span{color:var(--by-blue);font-weight:700}
.byjy-news-detail__meta time{color:#8090a3;font-weight:500;letter-spacing:.02em}
.byjy-news-detail__body{margin:0 0 .5rem}
.byjy-news-detail__body h2{
  margin:1.6rem 0 .7rem;font-size:clamp(1.15rem,2.2vw,1.35rem);font-weight:800;color:var(--by-ink);
}
.byjy-news-detail__body h2:first-child{margin-top:.35rem}
.byjy-news-detail__body p{margin:0 0 1rem;line-height:1.9;color:var(--by-steel)}
.byjy-news-detail__pager{
  display:flex;flex-direction:column;gap:0;
  margin-top:2.25rem;padding-top:0;
  border-top:1px solid rgba(18,24,32,.1);
}
.byjy-news-detail__pager-row{
  display:grid;grid-template-columns:4.5rem minmax(0,1fr);
  gap:.75rem 1rem;align-items:start;
  padding:1.05rem 0;
  border-bottom:1px solid rgba(18,24,32,.08);
}
.byjy-news-detail__pager-row > span{
  color:#8090a3;font-size:.88rem;font-weight:600;padding-top:.1rem;
}
.byjy-news-detail__pager-link{
  min-width:0;color:var(--by-ink);font-size:.98rem;font-weight:650;line-height:1.55;
}
.byjy-news-detail__pager-link a{
  color:var(--by-ink);font-weight:700;
  transition:color .2s ease;
}
.byjy-news-detail__pager-link a:hover{color:var(--by-blue)}

.byjy-contact{display:grid;grid-template-columns:1.15fr .85fr;gap:1.15rem;align-items:start}
.byjy-contact__card{background:var(--by-paper);padding:1.35rem;border-radius:var(--by-radius);box-shadow:var(--by-shadow)}
.byjy-contact__card h2{font-size:1.25rem;font-weight:800;margin-bottom:.9rem}
.byjy-contact__main,
.byjy-contact__side{
  background:var(--by-paper);padding:1.45rem 1.4rem 1.55rem;
  border:1px solid rgba(18,24,32,.07);border-radius:18px;
  box-shadow:0 14px 34px rgba(18,24,32,.07);
}
.byjy-contact__main .byjy-rich h3:first-child{margin-top:0}
.byjy-contact__side h2{font-size:1.25rem;font-weight:800;margin:0 0 .35rem}
.byjy-contact__side-lead{margin:0 0 .85rem;color:#617084;font-size:.9rem;line-height:1.65}
.byjy-contact__phones{display:flex;flex-direction:column;gap:.7rem;margin-bottom:1.1rem}
.byjy-contact__phones strong{display:block;font-size:clamp(1.25rem,3vw,1.55rem);font-weight:800;color:var(--by-red)}
.byjy-contact__phones span{color:#617084;font-size:.86rem}
.byjy-contact dl{display:grid;gap:.7rem}
.byjy-contact dt{font-size:.8rem;color:#8090a3}
.byjy-contact dd{margin:0;font-weight:600}
.byjy-form label{display:block;font-weight:600;margin:.7rem 0 .3rem}
.byjy-form input,.byjy-form textarea{
  width:100%;border:1px solid var(--by-line);border-radius:10px;padding:.7rem .8rem;font:inherit;background:#fff;
}
.byjy-form textarea{min-height:7.5rem;resize:vertical}
.byjy-form__code{display:flex;gap:.55rem;align-items:center}
.byjy-form__code img{height:2.35rem;width:auto;cursor:pointer;border-radius:6px}
.byjy-form .byjy-btn{margin-top:1rem;width:100%}

/* footer — aligned to hbsjhq 3-col + legal bar */
.byjy-foot{
  background:#0b1016;color:rgba(255,255,255,.78);
  padding-top:2.35rem;margin-top:2.5rem;
}
.byjy-foot__grid{
  display:grid;grid-template-columns:minmax(0,1fr) auto auto;
  gap:1.5rem clamp(2rem,4vw,3.5rem);align-items:start;
  padding-bottom:1.65rem;justify-content:space-between;
}
.byjy-foot__brand{display:grid;gap:.4rem}
.byjy-foot__brand strong{
  font-size:1.25rem;font-weight:800;color:#fff;letter-spacing:.02em;
}
.byjy-foot__brand p{
  margin:0;max-width:22rem;line-height:1.6;
  color:rgba(255,255,255,.55);font-size:.88rem;
}
.byjy-foot__slogan{color:rgba(255,255,255,.72)!important;font-weight:600}
.byjy-foot__label{
  margin:0 0 .65rem;font-size:.75rem;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.42);
}
.byjy-foot__meta{display:grid;gap:.4rem;font-size:.92rem}
.byjy-foot__contact{justify-self:end;text-align:left}
.byjy-foot__contact li{
  display:grid;grid-template-columns:3.6rem 1fr;gap:.75rem;align-items:start;
}
.byjy-foot__contact span{color:rgba(255,255,255,.42);font-size:.8rem}
.byjy-foot__contact strong{font-weight:400;color:rgba(255,255,255,.86);font-size:.92rem}
.byjy-foot__meta .byjy-tel{
  font:inherit;font-weight:600;color:rgba(255,255,255,.88);letter-spacing:.02em;
}
.byjy-foot__meta .byjy-tel:hover{color:#fff}
.byjy-foot a:hover{color:#fff}
.byjy-foot__wx{justify-self:end}
.byjy-foot__qr{margin:0;padding:.4rem;background:#fff;text-align:center}
.byjy-foot__wx img{width:6.25rem;height:6.25rem;object-fit:cover;display:block}
.byjy-foot__qr figcaption{
  margin:.45rem 0 0;font-size:.78rem;line-height:1.3;
  color:rgba(18,24,32,.72);letter-spacing:.06em;
}
.byjy-foot__base{
  border-top:1px solid rgba(255,255,255,.1);
  padding:.7rem 0 .85rem;font-size:.82rem;color:rgba(255,255,255,.48);
}
.byjy-foot__base-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;
  gap:.65rem 1.5rem;
}
.byjy-foot__copy{margin:0;text-align:left;flex:1 1 auto;min-width:0}
.byjy-foot__legal{
  margin:0;display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;
  gap:.35rem 1rem;text-align:right;flex:0 1 auto;
}
.byjy-foot__power{color:rgba(255,255,255,.42)}
.byjy-foot__legal a{color:rgba(255,255,255,.55)}
.byjy-foot__legal a:hover{color:#fff}

.byjy-mbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  grid-template-columns:1fr 1fr;background:#fff;
  border-top:1px solid var(--by-line);
  padding-bottom:env(safe-area-inset-bottom,0);
}
.byjy-mbar a{
  text-align:center;padding:.9rem .5rem;
  color:var(--by-blue);font-weight:700;font-size:.92rem;
}
.byjy-mbar .byjy-tel{color:var(--by-red)}

@media (max-width:1199px){
  .byjy-hero__bar{bottom:1.25rem}
}
@media (max-width:991px){
  .byjy-nav,.byjy-top__cta,.byjy-brand__name{display:none}
  .byjy-burger{display:block}
  .byjy-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .byjy-grid--svc{flex-wrap:wrap}
  .byjy-grid--svc > *{
    flex:0 1 100%;
    max-width:100%;
  }
  .byjy-home-svc__bay{flex-basis:clamp(14.5rem, 42vw, 17rem)}
  .byjy-home-svc__bay:nth-child(even){transform:translateY(.85rem)}
  .byjy-home-svc__bay:nth-child(even):hover{transform:translateY(.65rem)}
  .byjy-about-home__grid{
    grid-template-columns:1fr;gap:0;align-items:stretch;
    overflow:hidden;background:#fff;border:1px solid rgba(18,24,32,.08);
    border-radius:var(--by-radius);box-shadow:var(--by-shadow);
  }
  .byjy-about-home__copy{justify-content:flex-start;padding:1rem 1.1rem 1.15rem}
  .byjy-about-home__copy h2{font-size:clamp(1.15rem, 2.2vw + .55rem, 1.4rem);margin:0 0 .55rem}
  .byjy-about-home__text{margin:0 0 .75rem;max-width:none;font-size:.9rem;line-height:1.7}
  .byjy-hero__copy{
    --by-hero-h1: clamp(1rem, 1.8vw + .55rem, 1.45rem);
    --by-hero-pad-top: clamp(.7rem, 2.2vw, 1.6rem);
  }
  .byjy-hero__sub{margin:.4rem 0 .7rem;font-size:.86rem}
  .byjy-sec__head h2,
  .byjy-home-svc__head h2,
  .byjy-cta-band h2{font-size:clamp(1.1rem, 1.5vw + .55rem, 1.4rem)}
  .byjy-pagehead h1{font-size:clamp(1.05rem, 1.8vw + .5rem, 1.45rem)}
  .byjy-btn{
    min-height:2.15rem;padding:.4rem .95rem;font-size:.84rem;
  }
  .byjy-textlink{font-size:.86rem}
  .byjy-mbar a{padding:.72rem .45rem;font-size:.86rem}
  .byjy-cta-band__phone{font-size:clamp(1.15rem, 2vw + .4rem, 1.55rem)}
  .byjy-news-row__body strong{font-size:clamp(1rem, 1.2vw + .55rem, 1.12rem)}
  .byjy-home-svc__bay-board h3{font-size:1rem}
  .byjy-sec{padding:2.35rem 0 2.55rem}
  .byjy-about-home__media{
    order:-1;aspect-ratio:16/9;max-height:none;border-radius:0;box-shadow:none;
  }
  .byjy-contact{grid-template-columns:1fr}
  .byjy-foot__grid{
    grid-template-columns:minmax(0,1fr) auto;
    gap:1rem 1.25rem;padding-bottom:1rem;
  }
  .byjy-foot__brand{display:none}
  .byjy-foot__contact{justify-self:start}
  .byjy-foot__wx{justify-self:end}
  .byjy-foot{padding-top:1.65rem;margin-top:1.5rem}
  .byjy-foot__wx img{width:4.75rem;height:4.75rem}
  .byjy-cta-band__actions{align-items:flex-start}
  .byjy-cta-band__phone-wrap{text-align:left}
  .byjy-svc-layout{grid-template-columns:1fr;gap:1.15rem}
  .byjy-svc-side{position:static;top:auto}
  .byjy-svc-side__tit{
    cursor:pointer;justify-content:space-between;padding:0 1rem;line-height:3.1rem;
  }
  .byjy-svc-side__tit::after{
    content:"";width:.55rem;height:.55rem;border-right:2px solid #fff;border-bottom:2px solid #fff;
    transform:rotate(45deg);margin-top:-.2rem;transition:transform .2s ease;
  }
  .byjy-svc-side.is-open .byjy-svc-side__tit::after{transform:rotate(225deg);margin-top:.2rem}
  .byjy-svc-side__nav{display:none}
  .byjy-svc-side.is-open .byjy-svc-side__nav{display:block}
  .byjy-svc-article{padding:1.1rem 1.05rem 1.2rem;min-height:0}
}
@media (max-width:767px){
  body.byjy-body{padding-bottom:3.7rem}
  .byjy-mbar{display:grid}
  .byjy-sec{padding:1.85rem 0 2.1rem}
  .byjy-grid--2,.byjy-grid--3{grid-template-columns:1fr}
  .byjy-grid--svc > *{
    flex-basis:100%;
    max-width:100%;
  }
  .byjy-home-svc__bay{
    flex-basis:min(78vw, 18rem);
  }
  .byjy-home-svc__bay:nth-child(even),
  .byjy-home-svc__bay:nth-child(even):hover,
  .byjy-home-svc__bay:nth-child(odd):hover{transform:none}
  .byjy-home-svc__bay-board{min-height:7.2rem;padding:.8rem .85rem .9rem}
  .byjy-home-svc__hint{letter-spacing:.04em;font-size:.78rem}
  .byjy-news-row{flex-direction:column;min-height:0;padding:.65rem .65rem 0}
  .byjy-news-row__thumb{flex:none;max-width:none;width:100%;min-height:0;aspect-ratio:16/9}
  .byjy-news-row__body{padding:.75rem .4rem .9rem}
  .byjy-news-detail{padding:1.2rem 0 2.2rem}
  .byjy-news-detail__pager-row{
    grid-template-columns:auto minmax(0,1fr);
    gap:.45rem .65rem;align-items:center;
    padding:.85rem 0;
  }
  .byjy-news-detail__pager-row > span{
    flex:none;white-space:nowrap;padding-top:0;font-size:.82rem;
  }
  .byjy-news-detail__pager-link{
    font-size:.9rem;line-height:1.4;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .byjy-news-detail__pager-link a{
    display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .byjy-hero__copy{
    --by-hero-h1: clamp(.95rem, 3.4vw + .25rem, 1.25rem);
    --by-hero-pad-top: .55rem;
  }
  .byjy-hero__copy h1{max-width:100%}
  .byjy-hero__bar{bottom:.65rem;gap:.55rem}
  .byjy-btn{
    min-height:2rem;padding:.35rem .85rem;font-size:.8rem;
  }
  .byjy-about-home__copy h2{font-size:clamp(1.08rem, 3.2vw + .35rem, 1.28rem)}
  .byjy-sec__head h2,
  .byjy-home-svc__head h2,
  .byjy-cta-band h2{font-size:clamp(1.05rem, 2.8vw + .4rem, 1.28rem)}
  .byjy-pagehead{padding:.55rem 0}
  .byjy-pagehead h1{font-size:clamp(1rem, 3vw + .3rem, 1.28rem);margin:.25rem 0 0}
  .byjy-pagehead__lead{display:none}
  .byjy-mbar a{padding:.65rem .4rem;font-size:.82rem}
  .byjy-foot__base-inner{flex-direction:column;align-items:flex-start}
  .byjy-foot__legal{justify-content:flex-start;text-align:left}
}
@media (max-width:480px){
  .byjy-shell,.byjy-pagehead > .byjy-shell{width:min(100% - 1.25rem, var(--by-shell))}
  .byjy-foot__wx img{width:4.6rem;height:4.6rem}
  .byjy-hero__sub{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:.45rem 0 .65rem;font-size:.8rem}
  .byjy-news-row__thumb img{min-height:0}
  .byjy-news-row__body{padding:.7rem .3rem .85rem}
  .byjy-brand img{height:1.75rem}
}