/* ==========================================================================
   思迎淼创意文具商城 — 站点样式
   武汉市思迎淼贸易有限公司
   ========================================================================== */
:root{
  --brand:#B92B27;
  --brand-d:#8E1F1C;
  --brand-l:#FDF3F2;
  --ink:#232B36;
  --ink2:#46505E;
  --muted:#7A8595;
  --line:#E7E9ED;
  --line2:#F1F2F5;
  --bg:#F6F7F9;
  --cream:#FBF8F3;
  --gold:#C39B3D;
  --ok:#1F7A4D;
  --warn:#B7791F;
  --radius:10px;
  --radius-s:6px;
  --shadow:0 2px 10px rgba(24,32,44,.06);
  --shadow-h:0 10px 26px rgba(24,32,44,.12);
  --box:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{overflow-x:hidden;margin:0;padding:0}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",Arial,sans-serif;
  font-size:15px;line-height:1.75;color:var(--ink);background:#fff;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35}
p{margin:0 0 1em}
table{border-collapse:collapse;width:100%}
input,textarea,select,button{font-family:inherit;font-size:inherit}
.sy-box{width:100%;max-width:var(--box);margin:0 auto;padding:0 20px}
.sy-clear::after{content:"";display:block;clear:both}
.sy-sr{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.sy-hero-cap h2{font-size:clamp(24px,3.4vw,44px);letter-spacing:2px;font-weight:700;
  text-shadow:0 2px 18px rgba(0,0,0,.35);margin:0}

/* ---------- 按钮 ---------- */
.sy-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--radius-s);border:1px solid var(--brand);
  background:var(--brand);color:#fff;cursor:pointer;font-weight:600;letter-spacing:.4px;
  transition:background .2s,box-shadow .2s,transform .15s}
.sy-btn:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff;box-shadow:0 6px 16px rgba(185,43,39,.26)}
.sy-btn:active{transform:translateY(1px)}
.sy-btn--ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.sy-btn--ghost:hover{background:var(--brand-l);color:var(--brand-d)}
.sy-btn--line{background:#fff;color:var(--ink2);border-color:var(--line)}
.sy-btn--line:hover{background:#fff;color:var(--brand);border-color:var(--brand)}
.sy-btn--sm{height:36px;padding:0 18px;font-size:14px}
.sy-btn--lg{height:50px;padding:0 34px;font-size:16px}
.sy-btn--block{width:100%}
.sy-btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- 头部 ---------- */
.sy-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(24,32,44,.02)}
.sy-header .sy-box{display:flex;align-items:center;gap:28px;height:74px;max-width:var(--box)}
.sy-brand{flex:0 0 auto;display:flex;align-items:center}
.sy-brand img{height:44px;width:auto}
.sy-nav{flex:1 1 auto;min-width:0}
.sy-nav-list{display:flex;align-items:center;gap:2px}
.sy-nav-list>li{position:relative}
.sy-nav-list>li>a{display:block;padding:0 15px;line-height:74px;font-size:15.5px;font-weight:500;color:var(--ink);white-space:nowrap}
.sy-nav-list>li>a:hover,.sy-nav-list>li.on>a{color:var(--brand)}
.sy-nav-list>li.on>a{font-weight:700}
.sy-nav-list>li.on>a::after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:3px;background:var(--brand);border-radius:3px 3px 0 0}
.sy-sub{position:absolute;left:0;top:100%;min-width:230px;padding:10px 0;background:#fff;
  border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-h);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s,transform .2s,visibility .2s}
.sy-has-sub:hover .sy-sub{opacity:1;visibility:visible;transform:translateY(0)}
.sy-sub-in{max-height:min(70vh,560px);overflow:auto}
.sy-sub a{display:block;padding:8px 20px;font-size:14px;color:var(--ink2);white-space:nowrap}
.sy-sub a:hover{background:var(--brand-l);color:var(--brand)}
.sy-tools{flex:0 0 auto;display:flex;align-items:center;gap:16px}
.sy-tool{display:inline-flex;align-items:center;gap:5px;font-size:14px;color:var(--ink2);position:relative}
.sy-tool:hover{color:var(--brand)}
.sy-tool svg{display:block}
.sy-badge{position:absolute;top:-8px;right:-10px;min-width:17px;height:17px;padding:0 4px;
  background:var(--brand);color:#fff;font-size:11px;line-height:17px;text-align:center;
  border-radius:9px;font-style:normal}
.sy-call{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:18px;
  background:var(--brand-l);color:var(--brand-d);font-weight:700;font-size:14.5px;letter-spacing:.3px}
.sy-call:hover{background:var(--brand);color:#fff}
.sy-burger{display:none;width:40px;height:40px;border:0;background:transparent;padding:9px 8px;cursor:pointer}
.sy-burger i{display:block;height:2px;background:var(--ink);border-radius:2px;margin:5px 0;transition:.25s}
.sy-burger.on i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.sy-burger.on i:nth-child(2){opacity:0}
.sy-burger.on i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.sy-mnav{display:none}

/* ---------- 面包屑 ---------- */
.sy-crumb{background:var(--bg);border-bottom:1px solid var(--line)}
.sy-crumb .sy-box{display:flex;align-items:center;gap:8px;height:46px;font-size:13.5px;color:var(--muted);overflow:auto}
.sy-crumb a:hover{color:var(--brand)}
.sy-crumb b{color:var(--ink2);font-weight:600}
.sy-crumb span{color:#C4CAD3}

/* ---------- 通栏标题 ---------- */
.sy-sec{padding:56px 0}
.sy-sec--bg{background:var(--bg)}
.sy-sec--cream{background:var(--cream)}
.sy-head{text-align:center;margin-bottom:34px}
.sy-head h2{font-size:29px;letter-spacing:1px}
.sy-head h2 em{font-style:normal;color:var(--brand)}
.sy-head p{margin:10px 0 0;color:var(--muted);font-size:14.5px;letter-spacing:.6px}
.sy-head--l{text-align:left;border-left:4px solid var(--brand);padding-left:16px}
.sy-head--l h2{font-size:23px}
.sy-head--l p{margin-top:6px}
.sy-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted)}
.sy-more:hover{color:var(--brand)}

/* ---------- 首页轮播 ---------- */
.sy-hero{position:relative;background:#0E1418;overflow:hidden}
.sy-hero-track{position:relative;height:clamp(300px,44vw,560px)}
.sy-hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;margin:0}
.sy-hero-slide.on{opacity:1}
.sy-hero-slide img{width:100%;height:100%;object-fit:cover}
.sy-hero-slide::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,16,20,.72) 0%,rgba(12,16,20,.42) 46%,rgba(12,16,20,.08) 100%)}
.sy-hero-cap{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:3;color:#fff}
.sy-hero-cap .sy-box{max-width:var(--box)}
.sy-hero-cap .sy-hk{display:inline-block;font-size:12.5px;letter-spacing:3px;padding:5px 14px;
  border:1px solid rgba(255,255,255,.55);border-radius:20px;margin-bottom:18px}
.sy-hero-cap h1{font-size:clamp(24px,3.4vw,44px);letter-spacing:2px;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.sy-hero-cap p{margin:14px 0 26px;max-width:560px;font-size:15.5px;color:rgba(255,255,255,.88);line-height:1.9}
.sy-hero-cap .sy-hbtns{display:flex;gap:14px;flex-wrap:wrap}
.sy-hero-cap .sy-btn--w{background:#fff;color:var(--ink);border-color:#fff}
.sy-hero-cap .sy-btn--w:hover{background:#fff;color:var(--brand);box-shadow:0 8px 22px rgba(0,0,0,.24)}
.sy-hero-cap .sy-btn--o{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.7)}
.sy-hero-cap .sy-btn--o:hover{background:rgba(255,255,255,.2);color:#fff;border-color:#fff}
.sy-hero-dots{position:absolute;left:0;right:0;bottom:20px;z-index:4;display:flex;justify-content:center;gap:10px}
.sy-hero-dots button{width:34px;height:4px;border:0;border-radius:3px;background:rgba(255,255,255,.42);cursor:pointer;padding:0}
.sy-hero-dots button.on{background:#fff}
.sy-hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:42px;height:62px;border:0;
  background:rgba(14,20,24,.34);color:#fff;cursor:pointer;font-size:20px;transition:.2s}
.sy-hero-arrow:hover{background:rgba(185,43,39,.86)}
.sy-hero-arrow.prev{left:0}
.sy-hero-arrow.next{right:0}

/* ---------- 首页服务条 ---------- */
.sy-serves{background:#fff;border-bottom:1px solid var(--line)}
.sy-serves ul{display:grid;grid-template-columns:repeat(4,1fr)}
.sy-serves li{display:flex;align-items:center;gap:13px;padding:22px 8px;border-right:1px solid var(--line2)}
.sy-serves li:last-child{border-right:0}
.sy-serves .sy-sv-ic{flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:var(--brand-l);
  color:var(--brand);display:flex;align-items:center;justify-content:center}
.sy-serves h4{font-size:15px;margin-bottom:3px}
.sy-serves p{margin:0;font-size:13px;color:var(--muted);line-height:1.5}

/* ---------- 分类导航卡 ---------- */
.sy-catgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.sy-cattile{position:relative;display:block;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;overflow:hidden;transition:box-shadow .25s,transform .25s,border-color .25s}
.sy-cattile:hover{box-shadow:var(--shadow-h);transform:translateY(-4px);border-color:#DCD3CE}
.sy-cattile-img{aspect-ratio:1/1;background:var(--bg);overflow:hidden}
.sy-cattile-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.sy-cattile:hover .sy-cattile-img img{transform:scale(1.07)}
.sy-cattile-tx{padding:12px 12px 14px;text-align:center}
.sy-cattile-tx h3{font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sy-cattile-tx span{display:block;margin-top:4px;font-size:12.5px;color:var(--muted)}

/* ---------- 商品网格 ---------- */
.sy-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.sy-grid--4{grid-template-columns:repeat(4,1fr)}
.sy-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;
  display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s,border-color .25s}
.sy-card:hover{box-shadow:var(--shadow-h);transform:translateY(-4px);border-color:#E2D8D3}
.sy-card-img{position:relative;aspect-ratio:1/1;background:var(--bg);overflow:hidden;display:block}
.sy-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.sy-card:hover .sy-card-img img{transform:scale(1.06)}
.sy-card-tag{position:absolute;left:10px;top:10px;z-index:2;padding:2px 9px;border-radius:12px;
  background:rgba(185,43,39,.92);color:#fff;font-size:11.5px;letter-spacing:.5px}
.sy-card-bd{padding:13px 14px 15px;display:flex;flex-direction:column;flex:1 1 auto}
.sy-card-bd h3{font-size:14.5px;font-weight:600;line-height:1.55;height:3.1em;overflow:hidden;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.sy-card-bd h3 a:hover{color:var(--brand)}
.sy-card-cat{font-size:12.5px;color:var(--muted);margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sy-card-bt{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}
.sy-price{color:var(--brand);font-weight:700;font-size:19px;letter-spacing:.2px}
.sy-price i{font-style:normal;font-size:13px;margin-right:1px}
.sy-card-bt .sy-mini{font-size:12.5px;color:var(--muted)}

/* ---------- 分类/列表页 ---------- */
.sy-layout{display:grid;grid-template-columns:236px 1fr;gap:26px;align-items:start;padding:30px 0 60px}
.sy-side{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;position:sticky;top:94px}
.sy-side-h{padding:15px 18px;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff}
.sy-side-h h3{font-size:16.5px;letter-spacing:.8px}
.sy-side-h p{margin:3px 0 0;font-size:12.5px;color:rgba(255,255,255,.82)}
.sy-side ul{padding:8px 0 12px}
.sy-side li a{display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:10px 18px;font-size:14px;color:var(--ink2);border-left:3px solid transparent}
.sy-side li a:hover{background:var(--brand-l);color:var(--brand);border-left-color:var(--brand)}
.sy-side li.on a{background:var(--brand-l);color:var(--brand);border-left-color:var(--brand);font-weight:700}
.sy-side li a span{font-size:12px;color:var(--muted)}
.sy-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:13px 16px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:18px}
.sy-bar .sy-sorts{display:flex;gap:6px;flex-wrap:wrap}
.sy-bar .sy-sorts button{height:32px;padding:0 15px;border:1px solid var(--line);background:#fff;
  border-radius:16px;cursor:pointer;font-size:13.5px;color:var(--ink2);transition:.2s}
.sy-bar .sy-sorts button:hover{border-color:var(--brand);color:var(--brand)}
.sy-bar .sy-sorts button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.sy-bar .sy-count{font-size:13.5px;color:var(--muted)}
.sy-bar .sy-count b{color:var(--brand);font-size:15px}
.sy-empty{padding:70px 20px;text-align:center;color:var(--muted)}
.sy-pager{display:flex;justify-content:center;gap:8px;margin-top:34px;flex-wrap:wrap}
.sy-pager a,.sy-pager span{min-width:38px;height:38px;line-height:36px;padding:0 12px;text-align:center;
  border:1px solid var(--line);border-radius:var(--radius-s);background:#fff;font-size:14px;color:var(--ink2)}
.sy-pager a:hover{border-color:var(--brand);color:var(--brand)}
.sy-pager .on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 商品详情 ---------- */
.sy-detail{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:34px 0 20px}
.sy-gal-main{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;aspect-ratio:1/1}
.sy-gal-main img{width:100%;height:100%;object-fit:contain;background:#fff}
.sy-gal-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.sy-gal-thumbs button{border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;
  padding:0;background:#fff;cursor:pointer;aspect-ratio:1/1;transition:.2s}
.sy-gal-thumbs button.on{border-color:var(--brand);box-shadow:0 0 0 2px rgba(185,43,39,.16)}
.sy-gal-thumbs img{width:100%;height:100%;object-fit:cover}
.sy-info h1{font-size:25px;line-height:1.45;letter-spacing:.4px}
.sy-info .sy-sub2{margin:12px 0 0;color:var(--muted);font-size:14px}
.sy-pricebox{margin:20px 0;padding:18px 20px;background:var(--brand-l);border-radius:var(--radius);border:1px solid #F3DAD8}
.sy-pricebox .sy-pn{display:flex;align-items:baseline;gap:10px}
.sy-pricebox .sy-pn b{color:var(--brand);font-size:34px;font-weight:700;letter-spacing:.5px}
.sy-pricebox .sy-pn b i{font-style:normal;font-size:19px;margin-right:2px}
.sy-pricebox .sy-pn span{font-size:13px;color:var(--muted)}
.sy-pricebox .sy-pr{margin-top:8px;font-size:13.5px;color:var(--ink2)}
.sy-meta{margin:18px 0;border-top:1px solid var(--line)}
.sy-meta dl{display:grid;grid-template-columns:92px 1fr;gap:0;margin:0}
.sy-meta dt,.sy-meta dd{margin:0;padding:11px 0;border-bottom:1px solid var(--line2);font-size:14px}
.sy-meta dt{color:var(--muted)}
.sy-meta dd{color:var(--ink)}
.sy-qty{display:flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;width:132px}
.sy-qty button{width:40px;height:42px;border:0;background:#fff;cursor:pointer;font-size:18px;color:var(--ink2)}
.sy-qty button:hover{background:var(--brand-l);color:var(--brand)}
.sy-qty input{width:52px;height:42px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);
  text-align:center;font-size:15px;outline:none}
.sy-buyrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:20px 0 10px}
.sy-assure{display:flex;gap:20px;flex-wrap:wrap;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted)}
.sy-assure span{display:inline-flex;align-items:center;gap:5px}
.sy-assure svg{color:var(--ok)}

/* 详情 Tab */
.sy-tabs{margin-top:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.sy-tabs-h{display:flex;border-bottom:1px solid var(--line);background:var(--bg);overflow:auto}
.sy-tabs-h button{flex:0 0 auto;height:50px;padding:0 26px;border:0;background:transparent;cursor:pointer;
  font-size:15px;color:var(--ink2);border-bottom:2px solid transparent;transition:.2s}
.sy-tabs-h button:hover{color:var(--brand)}
.sy-tabs-h button.on{color:var(--brand);font-weight:700;border-bottom-color:var(--brand);background:#fff}
.sy-tabs-p{display:none;padding:26px 28px}
.sy-tabs-p.on{display:block}
.sy-tabs-p h3{font-size:17px;margin:22px 0 10px;padding-left:12px;border-left:3px solid var(--brand)}
.sy-tabs-p h3:first-child{margin-top:0}
.sy-tabs-p p{margin:0 0 12px;color:var(--ink2);line-height:1.95}
.sy-tabs-p ul{margin:0 0 14px;padding-left:2px}
.sy-tabs-p li{position:relative;padding:5px 0 5px 18px;color:var(--ink2);line-height:1.85}
.sy-tabs-p li::before{content:"";position:absolute;left:2px;top:15px;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.sy-tabs-p img{border-radius:var(--radius-s);margin:14px 0}
.sy-tabs-p strong{color:var(--ink)}
.sy-prtable td,.sy-prtable th{border:1px solid var(--line);padding:10px 14px;font-size:14px;text-align:left}
.sy-prtable th{background:var(--bg);color:var(--ink2);font-weight:600;width:170px}

/* ---------- 资讯 ---------- */
.sy-newsgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sy-ncard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}
.sy-ncard:hover{box-shadow:var(--shadow-h);transform:translateY(-4px)}
.sy-ncard-img{aspect-ratio:16/9;background:var(--bg);overflow:hidden}
.sy-ncard-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.sy-ncard:hover .sy-ncard-img img{transform:scale(1.06)}
.sy-ncard-bd{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1 1 auto}
.sy-ncard-bd h3{font-size:16.5px;line-height:1.6;height:3.2em;overflow:hidden;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.sy-ncard-bd p{margin:10px 0 14px;font-size:13.5px;color:var(--muted);line-height:1.8;height:3.6em;overflow:hidden;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.sy-ndate{display:flex;align-items:center;justify-content:space-between;margin-top:auto;
  font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px dashed var(--line)}
.sy-nlist li{display:grid;grid-template-columns:230px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.sy-nlist li:first-child{padding-top:0}
.sy-nlist .sy-nl-img{aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;background:var(--bg)}
.sy-nlist .sy-nl-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.sy-nlist li:hover .sy-nl-img img{transform:scale(1.05)}
.sy-nlist h3{font-size:18px;line-height:1.55}
.sy-nlist h3 a:hover{color:var(--brand)}
.sy-nlist p{margin:10px 0 12px;font-size:14px;color:var(--muted);line-height:1.85}
.sy-nlist .sy-nmeta{font-size:12.5px;color:var(--muted);display:flex;gap:18px}
.sy-article{max-width:920px;margin:0 auto;padding:36px 0 60px}
.sy-article-h{text-align:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
.sy-article-h h1{font-size:28px;line-height:1.5}
.sy-article-h .sy-ameta{margin-top:14px;font-size:13px;color:var(--muted);display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.sy-article-b{padding:28px 0 0;font-size:16px;line-height:2.05;color:var(--ink2)}
.sy-article-b h3{font-size:18px;color:var(--ink);margin:26px 0 12px;padding-left:12px;border-left:3px solid var(--brand)}
.sy-article-b p{margin:0 0 16px}
.sy-article-b img{border-radius:var(--radius);margin:18px 0}
.sy-article-f{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- 内容页 ---------- */
.sy-page-h{padding:52px 0 40px;background:linear-gradient(135deg,#1E262F 0%,#2E3A47 100%);color:#fff;text-align:center}
.sy-page-h h1{font-size:30px;letter-spacing:2px}
.sy-page-h p{margin:12px auto 0;max-width:720px;color:rgba(255,255,255,.8);font-size:15px;line-height:1.9}
.sy-prose{max-width:920px;margin:0 auto;padding:40px 0 60px;font-size:15.5px;line-height:2.05;color:var(--ink2)}
.sy-prose h3{font-size:19px;color:var(--ink);margin:30px 0 14px;padding-left:13px;border-left:4px solid var(--brand)}
.sy-prose h3:first-child{margin-top:0}
.sy-prose p{margin:0 0 16px}
.sy-prose ul{margin:0 0 18px}
.sy-prose li{position:relative;padding:6px 0 6px 20px;line-height:1.9}
.sy-prose li::before{content:"";position:absolute;left:2px;top:17px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.sy-prose strong{color:var(--ink)}

/* 侧栏布局内容页 */
.sy-cols{display:grid;grid-template-columns:246px 1fr;gap:30px;align-items:start;padding:30px 0 60px}

/* ---------- 联系 ---------- */
.sy-conbox{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start;padding:36px 0 60px}
.sy-concard{border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;background:#fff}
.sy-concard h3{font-size:18px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.sy-concard dl{display:grid;grid-template-columns:88px 1fr;gap:0;margin:0}
.sy-concard dt,.sy-concard dd{margin:0;padding:11px 0;font-size:14.5px;border-bottom:1px dashed var(--line2)}
.sy-concard dt{color:var(--muted)}
.sy-concard dd{color:var(--ink);word-break:break-all}
.sy-mapbox{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.sy-mapbox .sy-maptx{padding:16px 20px;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink2)}
.sy-mapbox .sy-mapimg{aspect-ratio:16/10;background:var(--bg);display:flex;align-items:center;justify-content:center}

/* ---------- 表单 ---------- */
.sy-form{max-width:560px;margin:0 auto}
.sy-field{margin-bottom:18px}
.sy-field>label{display:block;margin-bottom:7px;font-size:14px;color:var(--ink2);font-weight:500}
.sy-field>label i{color:var(--brand);font-style:normal;margin-right:3px}
.sy-field .sy-in,.sy-field .sy-ta,.sy-field .sy-se{width:100%;border:1px solid var(--line);
  border-radius:var(--radius-s);padding:0 14px;height:46px;background:#fff;outline:none;color:var(--ink);
  transition:border-color .2s,box-shadow .2s}
.sy-field .sy-ta{height:auto;padding:12px 14px;min-height:120px;resize:vertical;line-height:1.8}
.sy-field .sy-in:focus,.sy-field .sy-ta:focus,.sy-field .sy-se:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(185,43,39,.1)}
.sy-field .sy-hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.sy-field .sy-err{font-size:12.5px;color:#C0392B;margin-top:6px;display:none}
.sy-field.bad .sy-in,.sy-field.bad .sy-ta{border-color:#E07A72}
.sy-field.bad .sy-err{display:block}
.sy-field--code{display:flex;gap:10px}
.sy-field--code .sy-in{flex:1 1 auto}
.sy-field--code .sy-code{flex:0 0 118px;height:46px;border:1px solid var(--line);border-radius:var(--radius-s);
  background:var(--brand-l);color:var(--brand-d);font-weight:700;letter-spacing:3px;cursor:pointer;font-size:16px}
.sy-check{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--ink2);margin-bottom:18px}
.sy-check input{margin-top:4px}
.sy-authwrap{max-width:1000px;margin:0 auto;padding:46px 0 70px}
.sy-authcard{max-width:460px;margin:0 auto;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;padding:34px 34px 30px;box-shadow:var(--shadow)}
.sy-authcard h1{font-size:23px;text-align:center}
.sy-authcard .sy-ahint{text-align:center;color:var(--muted);font-size:13.5px;margin:10px 0 26px}
.sy-authfoot{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);text-align:center;font-size:13.5px;color:var(--muted)}
.sy-msg{display:none;margin-bottom:16px;padding:11px 15px;border-radius:var(--radius-s);font-size:14px}
.sy-msg.on{display:block}
.sy-msg--ok{background:#EDF7F1;color:#1F7A4D;border:1px solid #CFE9DA}
.sy-msg--bad{background:#FDF1F0;color:#B92B27;border:1px solid #F3DAD8}

/* ---------- 购物车 / 结算 ---------- */
.sy-cartwrap{padding:32px 0 70px}
.sy-carttbl{width:100%;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.sy-carttbl th{background:var(--bg);padding:14px 16px;font-size:14px;color:var(--ink2);text-align:left;font-weight:600}
.sy-carttbl td{padding:16px;border-top:1px solid var(--line);vertical-align:middle;font-size:14px}
.sy-carttbl .sy-cp{display:flex;gap:14px;align-items:center}
.sy-carttbl .sy-cp img{width:74px;height:74px;object-fit:cover;border-radius:var(--radius-s);border:1px solid var(--line)}
.sy-carttbl .sy-cp h4{font-size:14.5px;line-height:1.5;font-weight:600}
.sy-carttbl .sy-cp span{font-size:12.5px;color:var(--muted)}
.sy-carttbl .sy-del{color:var(--muted);font-size:13px}
.sy-carttbl .sy-del:hover{color:var(--brand)}
.sy-cartfoot{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:20px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg)}
.sy-cartfoot .sy-total{font-size:15px;color:var(--ink2)}
.sy-cartfoot .sy-total b{color:var(--brand);font-size:27px;margin-left:8px}
.sy-steps{display:flex;justify-content:center;gap:0;margin-bottom:30px}
.sy-steps li{display:flex;align-items:center;gap:9px;padding:0 26px;font-size:14px;color:var(--muted);position:relative}
.sy-steps li::after{content:"";position:absolute;right:-14px;top:50%;width:28px;height:1px;background:var(--line)}
.sy-steps li:last-child::after{display:none}
.sy-steps li i{width:24px;height:24px;border-radius:50%;background:var(--line);color:#fff;font-style:normal;
  font-size:12.5px;display:flex;align-items:center;justify-content:center}
.sy-steps li.on{color:var(--brand);font-weight:700}
.sy-steps li.on i{background:var(--brand)}
.sy-orderbox{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;margin-bottom:22px}
.sy-orderbox h3{padding:15px 22px;background:var(--bg);font-size:16px;border-bottom:1px solid var(--line)}
.sy-orderbox .sy-ob{padding:22px}
.sy-paylist{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sy-paylist label{display:flex;align-items:center;gap:12px;padding:16px 18px;border:1px solid var(--line);
  border-radius:var(--radius);cursor:pointer;transition:.2s}
.sy-paylist label:hover{border-color:#E4B9B6}
.sy-paylist input{accent-color:var(--brand)}
.sy-paylist b{font-size:15px;display:block}
.sy-paylist span{font-size:12.5px;color:var(--muted)}
.sy-result{max-width:620px;margin:0 auto;text-align:center;padding:64px 0 80px}
.sy-result .sy-rico{width:82px;height:82px;margin:0 auto 22px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.sy-result .sy-rico.ok{background:#EDF7F1;color:var(--ok)}
.sy-result .sy-rico.bad{background:#FDF1F0;color:var(--brand)}
.sy-result h1{font-size:26px;margin-bottom:12px}
.sy-result .sy-rsum{color:var(--muted);font-size:14.5px;line-height:2;margin-bottom:8px}
.sy-result .sy-rinfo{display:inline-block;text-align:left;margin:24px auto;padding:20px 26px;background:var(--bg);
  border-radius:var(--radius);font-size:14px;line-height:2;color:var(--ink2);min-width:330px}
.sy-result .sy-rinfo b{color:var(--ink)}
.sy-result .sy-rbtns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:8px}

/* ---------- 空态 ---------- */
.sy-blank{padding:90px 20px;text-align:center}
.sy-blank svg{margin:0 auto 20px;color:#CBD2DA}
.sy-blank h2{font-size:21px;margin-bottom:10px}
.sy-blank p{color:var(--muted);margin-bottom:24px}

/* ---------- 页脚 ---------- */
.sy-footer{background:#1E262F;color:#B9C2CC;margin-top:0}
.sy-fmain{padding:48px 0 34px;border-bottom:1px solid rgba(255,255,255,.08)}
.sy-fgrid{display:grid;grid-template-columns:1.5fr 1.5fr 1.5fr 0.9fr;gap:34px}
.sy-fbrand img{height:42px;background:#fff;border-radius:6px;padding:4px 8px}
.sy-fbrand>p{margin:14px 0 18px;font-size:13.5px;color:#8E99A6;letter-spacing:.6px}
.sy-fbrand dl{display:grid;grid-template-columns:66px 1fr;gap:0;margin:0}
.sy-fbrand dt,.sy-fbrand dd{margin:0;padding:5px 0;font-size:13px;line-height:1.7}
.sy-fbrand dt{color:#8E99A6}
.sy-fbrand dd{color:#CBD4DE;word-break:break-all}
.sy-fbrand .sy-ftel{color:#fff;font-weight:700;font-size:17px;letter-spacing:.6px}
.sy-fnav{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;align-content:start}
.sy-fcol{margin-bottom:22px}
.sy-fcol h4{font-size:14.5px;color:#fff;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.1)}
.sy-fcol h4 a{color:#fff}
.sy-fcol h4 a:hover{color:#E8746F}
.sy-fcol li{margin-bottom:8px}
.sy-fcol a{font-size:13px;color:#9AA5B1;line-height:1.6}
.sy-fcol a:hover{color:#fff}
.sy-fqr{display:flex;flex-direction:column;gap:14px;align-items:center}
.sy-qritem{text-align:center}
.sy-qritem img{width:88px;height:88px;background:#fff;border-radius:6px;padding:4px;margin:0 auto 6px}
.sy-qritem span{font-size:12px;color:#8E99A6}
.sy-fbot{background:#161C23;padding:20px 0 26px;text-align:center}
.sy-finfo{margin:0 0 6px;font-size:12.5px;color:#7D8794;line-height:1.8}
.sy-fcopy{margin:8px 0 6px;font-size:12.5px;color:#7D8794;line-height:1.8}
.sy-ficp{margin:0}
.sy-ficp a{font-size:12.5px;color:#8E99A6}
.sy-ficp a:hover{color:#fff}

/* ---------- 返回顶部 ---------- */
.sy-top{position:fixed;right:22px;bottom:78px;z-index:70;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:var(--ink2);opacity:0;visibility:hidden;transition:.25s}
.sy-top.on{opacity:1;visibility:visible}
.sy-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- 内页顶部横幅 ---------- */
.sy-inad{width:100%;max-width:1920px;margin:0 auto;background:#0E1418;overflow:hidden}
.sy-inad img{width:100%;height:auto;max-height:240px;object-fit:cover;display:block}
@media (max-width:768px){.sy-inad img{max-height:120px}}

/* ---------- 询价表单（详情页） ---------- */
.sy-inquiry{margin-top:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.sy-inquiry-h{padding:16px 26px;background:linear-gradient(135deg,#FBF8F3,#F6F1E9);border-bottom:1px solid var(--line)}
.sy-inquiry-h h3{font-size:17px}
.sy-inquiry-h p{margin:5px 0 0;font-size:13px;color:var(--muted)}
.sy-inquiry-b{padding:24px 26px}
.sy-inquiry .sy-grid{grid-template-columns:1fr 1fr;gap:0 20px}

/* border for anchor visibility */

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1180px){
  .sy-nav-list>li>a{padding:0 11px;font-size:14.5px}
  .sy-grid{grid-template-columns:repeat(4,1fr)}
  .sy-catgrid{grid-template-columns:repeat(4,1fr)}
  .sy-fgrid{grid-template-columns:1.4fr 1.2fr 1.2fr;gap:26px}
  .sy-fqr{grid-column:1/-1;flex-direction:row;justify-content:center;gap:36px}
}
@media (max-width:980px){
  .sy-nav,.sy-call{display:none}
  .sy-burger{display:block}
  .sy-tools{gap:14px}
  .sy-mnav{display:none;background:#fff;border-top:1px solid var(--line);max-height:78vh;overflow:auto}
  .sy-mnav.on{display:block}
  .sy-mnav-in{padding:8px 0 20px}
  .sy-mnav-in>li>a{display:block;padding:13px 20px;font-size:15.5px;font-weight:600;border-bottom:1px solid var(--line2)}
  .sy-mnav-in>li>ul{display:none;background:var(--bg)}
  .sy-mnav-in>li.open>ul{display:block}
  .sy-mnav-in>li>ul a{display:block;padding:11px 34px;font-size:14px;color:var(--ink2);border-bottom:1px solid #EDEFF2}
  .sy-mnav-in>li>a.sy-mt{display:flex;justify-content:space-between;align-items:center}
  .sy-mnav-in>li>a.sy-mt::after{content:"+";font-weight:400;color:var(--muted)}
  .sy-mnav-in>li.open>a.sy-mt::after{content:"−"}
  .sy-layout,.sy-cols{grid-template-columns:1fr;gap:20px}
  .sy-side{position:static}
  .sy-side ul{display:grid;grid-template-columns:repeat(2,1fr);padding:6px}
  .sy-side li a{border-left:0;border-radius:var(--radius-s);padding:9px 14px}
  .sy-side li a:hover,.sy-side li.on a{border-left:0}
  .sy-detail{grid-template-columns:1fr;gap:26px}
  .sy-conbox{grid-template-columns:1fr;gap:24px}
  .sy-newsgrid{grid-template-columns:repeat(2,1fr)}
  .sy-paylist{grid-template-columns:1fr 1fr}
  .sy-nlist li{grid-template-columns:180px 1fr;gap:18px}
  .sy-sec{padding:44px 0}
  .sy-fgrid{grid-template-columns:1fr 1fr;gap:24px}
  .sy-fbrand{grid-column:1/-1}
}
@media (max-width:768px){
  body{font-size:14.5px}
  .sy-box{padding:0 15px}
  .sy-header .sy-box{height:62px;gap:12px}
  .sy-brand img{height:36px}
  .sy-tool span{display:none}
  .sy-tool svg{width:20px;height:20px}
  .sy-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .sy-grid--4{grid-template-columns:repeat(2,1fr)}
  .sy-catgrid{grid-template-columns:repeat(3,1fr);gap:10px}
  .sy-cattile-tx{padding:9px 8px 11px}
  .sy-cattile-tx h3{font-size:13px}
  .sy-cattile-tx span{font-size:11.5px}
  .sy-card-bd{padding:10px 11px 12px}
  .sy-card-bd h3{font-size:13.5px}
  .sy-price{font-size:16.5px}
  .sy-card-bt{flex-direction:column;align-items:flex-start;gap:2px}
  .sy-serves ul{grid-template-columns:repeat(2,1fr)}
  .sy-serves li{border-right:0;padding:14px 4px}
  .sy-serves .sy-sv-ic{width:36px;height:36px}
  .sy-serves h4{font-size:13.5px}
  .sy-serves p{font-size:12px}
  .sy-sec{padding:34px 0}
  .sy-head h2{font-size:22px}
  .sy-head p{font-size:13px}
  .sy-hero-track{height:clamp(220px,68vw,380px)}
  .sy-hero-cap h2{font-size:22px}
  .sy-hero-cap p{font-size:13.5px;margin:10px 0 18px}
  .sy-hero-arrow{display:none}
  .sy-detail{padding:22px 0 10px}
  .sy-info h1{font-size:19px}
  .sy-pricebox{padding:14px 16px}
  .sy-pricebox .sy-pn b{font-size:27px}
  .sy-gal-thumbs{grid-template-columns:repeat(4,1fr);gap:8px}
  .sy-meta dl{grid-template-columns:80px 1fr}
  .sy-buyrow .sy-btn{flex:1 1 auto}
  .sy-tabs-h button{height:44px;padding:0 16px;font-size:14px}
  .sy-tabs-p{padding:18px 16px}
  .sy-newsgrid{grid-template-columns:1fr;gap:16px}
  .sy-nlist li{grid-template-columns:1fr;gap:12px}
  .sy-nlist .sy-nl-img{aspect-ratio:16/9}
  .sy-nlist h3{font-size:16px}
  .sy-page-h{padding:36px 0 28px}
  .sy-page-h h1{font-size:22px}
  .sy-page-h p{font-size:13.5px}
  .sy-prose{padding:26px 0 44px;font-size:14.5px;line-height:1.95}
  .sy-prose h3{font-size:17px}
  .sy-article-h h1{font-size:20px}
  .sy-article-b{font-size:15px;line-height:1.95}
  .sy-authcard{padding:24px 20px 22px}
  .sy-carttbl{border:0}
  .sy-carttbl thead{display:none}
  .sy-carttbl tr{display:block;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;padding:12px}
  .sy-carttbl td{display:flex;justify-content:space-between;align-items:center;gap:10px;border:0;padding:7px 0;border-bottom:1px dashed var(--line2)}
  .sy-carttbl td:last-child{border-bottom:0}
  .sy-carttbl td::before{content:attr(data-th);color:var(--muted);font-size:13px;flex:0 0 auto}
  .sy-carttbl .sy-cp{flex:1 1 auto;justify-content:flex-start}
  .sy-carttbl .sy-cp img{width:56px;height:56px}
  .sy-cartfoot{flex-direction:column;align-items:stretch;gap:14px}
  .sy-cartfoot .sy-btn{width:100%}
  .sy-steps li{padding:0 12px;font-size:12.5px}
  .sy-steps li i{width:20px;height:20px;font-size:11px}
  .sy-steps li::after{width:14px;right:-7px}
  .sy-paylist{grid-template-columns:1fr}
  .sy-result{padding:44px 0 60px}
  .sy-result .sy-rinfo{min-width:0;width:100%;padding:16px 18px;font-size:13px}
  .sy-concard{padding:18px 16px}
  .sy-concard dl{grid-template-columns:80px 1fr}
  .sy-fgrid{grid-template-columns:1fr;gap:24px}
  .sy-fnav{grid-template-columns:1fr 1fr;gap:0 16px}
  .sy-fqr{flex-direction:row;gap:20px}
  .sy-qritem img{width:74px;height:74px}
  .sy-top{right:12px;bottom:66px;width:40px;height:40px}
  .sy-pager a,.sy-pager span{min-width:34px;height:34px;line-height:32px;font-size:13px;padding:0 9px}
  .sy-tabs-p table{font-size:13px}
  .sy-prtable td,.sy-prtable th{padding:8px 10px}
}
@media (max-width:420px){
  .sy-catgrid{grid-template-columns:repeat(2,1fr)}
  .sy-paylist{grid-template-columns:1fr}
  .sy-brand img{height:32px}
  .sy-header .sy-box{gap:8px}
}

/* ---------- 网站地图 ---------- */
.sy-mapgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.sy-mapcol{background:#fff;border:1px solid #EAECF0;border-radius:10px;padding:20px 20px 16px}
.sy-mapcol h3{font-size:15px;color:#1B2733;margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid #EEF0F3;font-weight:600}
.sy-mapcol ul{list-style:none;margin:0;padding:0;max-height:340px;overflow:auto}
.sy-mapcol li{line-height:1.9}
.sy-mapcol li a{color:#5A6672;font-size:13.5px;display:inline-block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}
.sy-mapcol li a:hover{color:var(--brand)}
@media (max-width:1024px){.sy-mapgrid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.sy-mapgrid{grid-template-columns:1fr;gap:16px}.sy-mapcol ul{max-height:none}}