/* =========================================================
   总结版首页（融合 A / B / C）
   B：大字品类目录 + 跟随预览、实拍双行滚动
   A + C：备货到配送三步（大图随滚动切换）
   C：联系区大号电话
   ========================================================= */
.hs-wrap{max-width:1240px;margin:0 auto;padding:0 30px}
.hs-label{font-size:11px;letter-spacing:3px;color:var(--orange);font-weight:600}
.hs-head h2{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:clamp(28px,3.4vw,42px);line-height:1.3;font-weight:700;letter-spacing:1px;margin:12px 0 0}
.hs-sub{margin-top:10px;color:var(--muted);font-size:14px}
.hs-head--row{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}
.hs-more,.hs-all{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);transition:color .25s,gap .25s;white-space:nowrap}
.hs-more:hover,.hs-all:hover{color:var(--orange);gap:14px}
.hs-more svg,.hs-all svg{width:16px;height:16px}

/* ---------- 品类目录（B） ---------- */
.hs-index{position:relative;padding:72px 0 80px;background:var(--paper)}
.hs-list{list-style:none;margin:34px 0 0;padding:0;border-bottom:1px solid #dfe5ec}
.hs-list li{border-top:1px solid #dfe5ec}
.hs-list a{display:grid;grid-template-columns:64px minmax(0,1.1fr) minmax(0,1fr) 46px;align-items:center;gap:20px;padding:22px 4px;transition:opacity .35s}
.hs-no{font:600 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:#a3adba}
.hs-name{font-size:clamp(24px,3vw,40px);font-weight:800;letter-spacing:1px;line-height:1.15;color:var(--ink);transition:transform .45s cubic-bezier(.2,.7,.1,1),color .3s}
.hs-desc{font-size:14px;color:var(--muted)}
.hs-thumb{display:none}
.hs-go{width:46px;height:46px;border-radius:50%;border:1px solid #d5dce4;display:grid;place-items:center;color:var(--ink);transition:background .3s,border-color .3s,color .3s,transform .35s}
.hs-go svg{width:18px;height:18px}
.hs-list.has-active a:not(.on){opacity:.35}
.hs-list a.on .hs-name,.hs-list a:focus-visible .hs-name{transform:translateX(14px);color:var(--orange)}
.hs-list a.on .hs-go,.hs-list a:focus-visible .hs-go{background:var(--orange);border-color:var(--orange);color:#fff}
.hs-all{margin-top:22px}
.hs-float{position:fixed;left:0;top:0;z-index:30;width:min(320px,24vw);aspect-ratio:4/3;border-radius:14px;overflow:hidden;pointer-events:none;opacity:0;scale:.7;transition:opacity .3s,scale .45s cubic-bezier(.2,.7,.1,1);box-shadow:0 26px 50px #14213133;background:#dfe5ec}
.hs-float.show{opacity:1;scale:1}
.hs-float img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .3s}
.hs-float img.on{opacity:1}
@media (hover:none){.hs-float{display:none}}

/* ---------- 现场实拍双行滚动（B） ---------- */
.hs-yard{background:#0f1c29;color:#fff;padding:72px 0 64px;overflow:hidden}
.hs-yard .hs-head h2{color:#fff}
.hs-yard .hs-more{color:#9fb0c1}
.hs-yard .hs-head{margin-bottom:30px}
.hs-mq{overflow:hidden;margin-top:14px}
.hs-mq__track{display:flex;width:max-content;animation:hsMq 70s linear infinite}
.hs-mq.rev .hs-mq__track{animation-direction:reverse;animation-duration:80s}
.hs-mq:hover .hs-mq__track,.hs-mq:focus-within .hs-mq__track{animation-play-state:paused}
@keyframes hsMq{to{transform:translateX(-50%)}}
.hs-shot{position:relative;flex-shrink:0;width:clamp(240px,27vw,420px);aspect-ratio:4/3;margin-right:14px;padding:0;border-radius:12px;overflow:hidden;background:#1d2c3b;cursor:zoom-in}
.hs-shot .photo{position:absolute;inset:0;background:#1d2c3b}
.hs-shot .photo img{filter:saturate(.9);transition:transform 1s cubic-bezier(.2,.7,.1,1)}
.hs-shot:hover .photo img{transform:scale(1.05)}
.hs-shot>span{position:absolute;left:12px;bottom:12px;z-index:1;font-size:12px;font-weight:600;padding:5px 10px;border-radius:999px;background:#ffffffeb;color:var(--ink)}

/* ---------- 备货到配送（A + C） ---------- */
.hs-flow{background:#fff;padding:80px 0}
.hs-flow__grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(30px,5vw,72px);align-items:start;margin-top:30px}
.hs-steps{list-style:none;margin:0;padding:0}
.hs-step{display:grid;grid-template-columns:auto 1fr;gap:22px;padding:clamp(36px,9vh,84px) 0;border-top:1px solid #e3e8ee;opacity:.38;transition:opacity .5s}
.hs-step:last-child{border-bottom:1px solid #e3e8ee}
.hs-step.is-on{opacity:1}
.hs-step__no{font:700 58px/.9 "DIN Alternate","Avenir Next Condensed","Arial Narrow",sans-serif;color:transparent;-webkit-text-stroke:1px #c3ccd6;min-width:1.3em;transition:color .4s,-webkit-text-stroke-color .4s}
.hs-step.is-on .hs-step__no{-webkit-text-stroke-color:var(--orange);color:#ec762814}
.hs-step h3{font-size:24px;margin-bottom:8px;letter-spacing:1px}
.hs-step p{color:#66717f;line-height:1.9;max-width:400px}
.hs-step__photo{display:none}
.hs-stage{position:sticky;top:110px;height:min(560px,calc(100vh - 150px));border-radius:16px;overflow:hidden;background:#dfe5ec}
.hs-stage__img{position:absolute;inset:0;opacity:0;transform:scale(1.06);transition:opacity .9s ease,transform 1.4s cubic-bezier(.2,.7,.1,1)}
.hs-stage__img.is-on{opacity:1;transform:none}
.hs-stage__img .photo{position:absolute;inset:0}
.hs-stage__tag{position:absolute;left:18px;bottom:18px;display:flex;gap:10px;align-items:baseline;padding:9px 15px;border-radius:999px;background:#0f1c29cc;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fff;font-size:14px}
.hs-stage__tag b{font-family:ui-monospace,Menlo,monospace;color:#ff9b50;font-weight:500}

/* ---------- 联系区（C） ---------- */
.hs-contact{position:relative;overflow:hidden;isolation:isolate;background:#0f1c29;color:#fff;text-align:center;padding:96px 24px 100px}
.hs-contact::before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/photos/6.png') center 55%/cover no-repeat;opacity:.18;filter:grayscale(.6)}
.hs-contact::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 55% at 50% 40%,#c0703f26,transparent 70%),linear-gradient(180deg,#0f1c29 0%,#0f1c29b3 40%,#0f1c29 100%)}
.hs-contact__in{max-width:760px;margin:0 auto;display:flex;flex-direction:column;align-items:center}
.hs-contact h2{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:clamp(30px,4.4vw,52px);line-height:1.3;letter-spacing:3px;margin:16px 0 10px}
.hs-contact__sub{color:#aab7c4}
.hs-tel{margin:28px 0 30px;font:600 clamp(42px,7vw,84px)/1.05 "DIN Alternate","Avenir Next Condensed","Arial Narrow",sans-serif;letter-spacing:2px;background:linear-gradient(100deg,#f8dcc0 0%,#e3a06f 38%,#fff1df 50%,#c9773f 68%,#f2c399 100%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:hsTel 6s linear infinite;font-variant-numeric:tabular-nums}
@keyframes hsTel{to{background-position:-220% 0}}
.hs-contact__btns{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.hs-contact .primary{border-radius:30px;padding:14px 28px}
.hs-ghost{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:30px;border:1px solid #ffffff40;color:#fff;transition:background .3s,border-color .3s}
.hs-ghost:hover{background:#ffffff14;border-color:#fff}
.hs-ghost svg{width:17px;height:17px}
.hs-addr{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:30px;font-size:13px;color:#8fa0b1}
.hs-addr svg{width:16px;height:16px}

/* ---------- 手机 ---------- */
@media(max-width:800px){
  .hs-wrap{padding:0 20px}
  .hs-label{font-size:10px;letter-spacing:1.5px}
  .hs-index{padding:52px 0 56px}
  .hs-list{margin-top:24px}
  .hs-list a{grid-template-columns:28px minmax(0,1fr) 92px;gap:12px;padding:16px 0}
  .hs-name{font-size:22px}
  .hs-desc{grid-column:2;grid-row:2;font-size:12px;margin-top:-4px}
  .hs-thumb{display:block;grid-column:3;grid-row:1/3;position:relative;width:92px;aspect-ratio:4/3;border-radius:9px;overflow:hidden;background:#dfe5ec}
  .hs-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .hs-go{display:none}
  .hs-no{grid-row:1/3;align-self:start;padding-top:8px}
  .hs-yard{padding:52px 0 48px}
  .hs-head--row{flex-direction:column;align-items:flex-start;gap:10px}
  .hs-shot{width:68vw}
  .hs-flow{padding:56px 0}
  .hs-flow__grid{grid-template-columns:1fr;margin-top:10px}
  .hs-stage{display:none}
  .hs-step{opacity:1;padding:28px 0;gap:14px}
  .hs-step__no{font-size:40px}
  .hs-step h3{font-size:20px}
  .hs-step__photo{display:block;grid-column:1/-1;position:relative;aspect-ratio:16/10;border-radius:12px;overflow:hidden;padding:0;margin-top:4px;background:#dfe5ec}
  .hs-step__photo .photo{position:absolute;inset:0}
  .hs-contact{padding:64px 20px 72px}
  .hs-contact__btns{flex-direction:column;width:100%}
  .hs-contact__btns>*{justify-content:center}
  .hs-addr{flex-wrap:wrap;line-height:1.7}
}
@media(prefers-reduced-motion:reduce){
  .hs-mq{overflow-x:auto}
  .hs-mq__track,.hs-tel{animation:none}
  .hs-stage__img,.hs-step,.hs-name{transition:none}
}
.steel-motion-off .hs-mq__track,.steel-motion-off .hs-tel{animation:none}
.steel-motion-off .hs-mq{overflow-x:auto}

/* ---------- 开场动画 ---------- */
.hs-intro{position:fixed;inset:0;z-index:2000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;cursor:pointer;
  }
.hs-intro__bg{position:absolute;inset:0;z-index:-1;background:radial-gradient(90% 80% at 30% 20%,#2c3a47 0%,#142131 55%,#0b141d 100%)}
.hs-intro.fading{pointer-events:none}
.hs-intro.fading::after{opacity:0;transition:opacity .4s}
.hs-intro{isolation:isolate}
.hs-intro::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:repeating-linear-gradient(90deg,#ffffff05 0 1px,transparent 1px 3px)}
.hs-intro .steel-mark{width:min(230px,52vw);height:auto;overflow:visible;filter:drop-shadow(0 18px 30px #0008);will-change:transform;transform-origin:50% 50%}
.hs-intro-on #header .steel-mark{opacity:0}
#header .steel-mark{transition:opacity .25s}
.hs-intro .steel-mark-assemble .steel-mark-part,.hs-intro .steel-mark.steel-mark-assemble .steel-mark-part{animation-duration:.8s}
.hs-intro .part-X{--part-x:-230px}
.hs-intro .steel-mark-sweep{animation:steel-sweep 1.2s cubic-bezier(.45,0,.2,1) 1.25s both}
.hs-intro__word{text-align:center;color:#ece3d6;opacity:0;transform:translateY(10px);animation:hsWord .8s cubic-bezier(.2,.7,.1,1) 1.2s forwards}
.hs-intro__word b{display:block;font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:clamp(22px,3vw,30px);letter-spacing:.5em;padding-left:.5em}
.hs-intro__word span{display:block;margin-top:10px;font-size:12px;letter-spacing:.3em;color:#d99a6c}
.hs-intro small{position:absolute;right:20px;bottom:calc(20px + env(safe-area-inset-bottom));font-size:12px;color:#ffffff66;letter-spacing:.2em}
@keyframes hsWord{to{opacity:1;transform:none}}

/* ---------- 轮播慢推镜：当前照片缓慢推近 ---------- */
.home-story .hero-slide img{transform-origin:60% 55%}
.home-story .hero-slide.is-active img{animation:hsKen 9s cubic-bezier(.25,.1,.25,1) both}
@keyframes hsKen{from{transform:scale(1.1)}to{transform:scale(1)}}

/* ---------- 板块标题逐行升起 ---------- */
.hs-rise{clip-path:inset(0 0 100% 0);transform:translateY(24px);transition:clip-path .9s cubic-bezier(.2,.7,.1,1),transform .9s cubic-bezier(.2,.7,.1,1)}
.hs-rise.in{clip-path:inset(0 0 -10% 0);transform:none}

@media(prefers-reduced-motion:reduce){.hs-intro{display:none}.home-story .hero-slide.is-active img{animation:none}.hs-rise{clip-path:none;transform:none}}
.steel-motion-off .home-story .hero-slide.is-active img{animation:none}