/* ============================================================
   北京旺得福医疗科技有限公司 - 主样式表
   ============================================================ */

:root {
  --primary:      #1a3a6b;
  --primary-dark: #0f2347;
  --primary-mid:  #1d4e8f;
  --accent:       #e8681a;
  --accent-light: #f5a060;
  --text:         #222;
  --text-light:   #666;
  --bg:           #f7f8fa;
  --white:        #fff;
  --border:       #e0e4ec;
  --shadow:       0 4px 24px rgba(26,58,107,.09);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;color:var(--text);background:var(--bg);line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ---------- topbar ---------- */
.topbar{background:var(--primary-dark);color:#aabbd4;font-size:12.5px;padding:7px 0}
.topbar .inner{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#aabbd4;margin-left:16px;transition:color .2s}
.topbar a:hover{color:var(--accent-light)}

/* ---------- header ---------- */
.site-header{background:var(--white);box-shadow:0 2px 16px rgba(26,58,107,.08);position:sticky;top:0;z-index:200}
.site-header .inner{display:flex;align-items:center;justify-content:space-between;height:82px}
.logo{display:flex;align-items:center;gap:14px}
.logo-icon{width:54px;height:54px;background:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;text-align:center;line-height:1.3;flex-shrink:0}
.logo-text .name{font-size:18px;font-weight:700;color:var(--primary);letter-spacing:.5px}
.logo-text .slogan{font-size:11.5px;color:var(--text-light);margin-top:2px;letter-spacing:1px}
.hotline-box{text-align:right}
.hotline-box .label{font-size:12px;color:var(--text-light);margin-bottom:2px}
.hotline-box .number{font-size:26px;font-weight:700;color:var(--accent);letter-spacing:1px}
.hotline-box .sub{font-size:11px;color:var(--text-light)}

/* ---------- nav ---------- */
.main-nav{background:var(--primary)}
.main-nav .inner{display:flex;align-items:stretch}
.nav-link{color:rgba(255,255,255,.88);padding:14px 22px;font-size:14px;font-weight:500;display:flex;align-items:center;gap:5px;transition:background .2s,color .2s;white-space:nowrap}
.nav-link:hover,.nav-link.active{background:var(--accent);color:#fff}
.nav-item{position:relative}
.nav-item:hover .dropdown{display:block}
.dropdown{display:none;position:absolute;top:100%;left:0;background:#fff;min-width:210px;z-index:300;box-shadow:0 8px 32px rgba(26,58,107,.15);border-top:3px solid var(--accent);border-radius:0 0 8px 8px}
.dropdown a{color:var(--text);padding:10px 18px;display:block;font-size:13px;border-bottom:1px solid var(--border);transition:background .15s,color .15s}
.dropdown a:last-child{border-bottom:none}
.dropdown a:hover{background:#f0f4fb;color:var(--primary)}

/* ---------- keywords strip ---------- */
.kw-strip{background:#fff3ec;border-top:3px solid var(--accent);border-bottom:1px solid #fcdbc0;padding:9px 0}
.kw-strip .inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.kw-strip .kw-label{font-size:12px;color:var(--text-light);white-space:nowrap;font-weight:500}
.kw-strip a{font-size:12px;color:var(--primary);padding:3px 10px;border-radius:20px;background:rgba(26,58,107,.07);transition:background .2s,color .2s}
.kw-strip a:hover{background:var(--primary);color:#fff}

/* ---------- hero banner ---------- */
.hero{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 55%,#1a5a9b 100%);color:#fff;position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E")}
.hero-deco{position:absolute;right:-80px;top:-80px;width:520px;height:520px;border:90px solid rgba(255,255,255,.05);border-radius:50%;pointer-events:none}
.hero-deco2{position:absolute;right:60px;bottom:-140px;width:320px;height:320px;border:60px solid rgba(255,255,255,.04);border-radius:50%;pointer-events:none}
.hero .inner{position:relative;z-index:1;padding:64px 0}
.hero-tag{display:inline-block;background:var(--accent);color:#fff;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:500;margin-bottom:20px;letter-spacing:1px}
.hero h1{font-size:38px;font-weight:700;line-height:1.25;margin-bottom:18px;text-shadow:0 2px 12px rgba(0,0,0,.3)}
.hero p{font-size:15px;opacity:.88;line-height:1.85;margin-bottom:30px;max-width:600px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{background:var(--accent);color:#fff;padding:13px 32px;border-radius:6px;font-size:15px;font-weight:500;transition:background .2s,transform .15s;display:inline-block}
.btn-primary:hover{background:#d05510;transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);padding:11px 28px;border-radius:6px;font-size:15px;font-weight:500;transition:border-color .2s,background .2s;display:inline-block}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.hero-stats{display:flex;gap:44px;margin-top:38px;padding-top:28px;border-top:1px solid rgba(255,255,255,.15)}
.stat-num{font-size:32px;font-weight:700;color:var(--accent-light);line-height:1}
.stat-desc{font-size:12px;opacity:.8;margin-top:5px}

/* ---------- section commons ---------- */
section{padding:60px 0}
.section-hd{text-align:center;margin-bottom:42px}
.section-hd .en{font-size:12px;color:var(--accent);letter-spacing:3px;text-transform:uppercase;margin-bottom:8px;font-weight:500}
.section-hd h2{font-size:28px;font-weight:700;color:var(--primary)}
.section-hd p{color:var(--text-light);font-size:13.5px;margin-top:10px}
.section-hd .line{width:50px;height:3px;background:var(--accent);margin:14px auto 0;border-radius:2px}

/* ---------- layout ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}

/* ---------- product card ---------- */
.product-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .25s,box-shadow .25s;cursor:pointer}
.product-card:hover{transform:translateY(-6px);box-shadow:0 14px 40px rgba(26,58,107,.15)}
.product-card .thumb{aspect-ratio:1/1;overflow:hidden;background:#f0f4f8;display:flex;align-items:center;justify-content:center;font-size:68px}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.product-card:hover .thumb img{transform:scale(1.06)}
.product-card .card-body{padding:14px 16px 18px}
.cat-badge{display:inline-block;background:#eef2fb;color:var(--primary);padding:2px 9px;border-radius:4px;font-size:11px;margin-bottom:7px}
.product-card h3{font-size:13.5px;color:var(--text);line-height:1.5;font-weight:500}
.card-more{color:var(--accent);font-size:12px;margin-top:9px}
.badge-new{background:var(--accent);color:#fff;font-size:10px;padding:2px 7px;border-radius:4px;vertical-align:middle;margin-left:4px}
.badge-hot{background:#c0392b;color:#fff;font-size:10px;padding:2px 7px;border-radius:4px;vertical-align:middle;margin-left:4px}
.badge-used{background:#27ae60;color:#fff;font-size:10px;padding:2px 7px;border-radius:4px;vertical-align:middle;margin-left:4px}

/* ---------- category overview cards ---------- */
.cat-card{background:#fff;border-radius:12px;padding:28px 20px 24px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .25s;cursor:pointer}
.cat-card:hover{border-color:var(--primary);transform:translateY(-4px)}
.cat-card .icon{font-size:44px;margin-bottom:14px}
.cat-card h3{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:8px}
.cat-card p{font-size:12.5px;color:var(--text-light);line-height:1.65}
.cat-card .sub-count{font-size:11.5px;color:var(--accent);margin-top:10px;font-weight:500}

/* ---------- sidebar ---------- */
.layout-sidebar{display:grid;grid-template-columns:220px 1fr;gap:28px;align-items:start}
.sidebar-box{background:#fff;border-radius:12px;box-shadow:var(--shadow);border:1px solid var(--border);overflow:hidden;position:sticky;top:100px}
.sidebar-box .sb-title{background:var(--primary);color:#fff;padding:14px 18px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}
.sc-item{border-bottom:1px solid var(--border)}
.sc-item:last-child{border-bottom:none}
.sc-main{padding:12px 18px;font-size:13.5px;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .15s;user-select:none}
.sc-main:hover,.sc-main.active{background:#f0f4fb;color:var(--primary)}
.sc-main .arrow{transition:transform .2s;font-size:11px}
.sc-item.open .sc-main .arrow{transform:rotate(180deg)}
.sc-subs{background:#f7f9fd;display:none;border-top:1px solid var(--border)}
.sc-item.open .sc-subs{display:block}
.sc-sub{padding:8px 18px 8px 30px;font-size:12.5px;color:var(--text-light);cursor:pointer;display:block;transition:color .15s}
.sc-sub:hover,.sc-sub.active{color:var(--accent)}

/* ---------- products section header ---------- */
.pcat-header{display:flex;align-items:center;gap:12px;margin:28px 0 14px;padding-bottom:10px;border-bottom:2px solid var(--accent)}
.pcat-header h3{font-size:15.5px;font-weight:700;color:var(--primary)}

/* ---------- about section ---------- */
.about-img-wrap{border-radius:16px;overflow:hidden;box-shadow:0 20px 60px rgba(26,58,107,.15);position:relative}
.about-placeholder{width:100%;aspect-ratio:4/3;background:linear-gradient(135deg,var(--primary),#1a5a9b);display:flex;align-items:center;justify-content:center;font-size:90px}
.about-badge{position:absolute;bottom:24px;right:24px;background:var(--accent);color:#fff;border-radius:10px;padding:14px 20px;text-align:center}
.about-badge .big{font-size:28px;font-weight:700}
.about-badge .sm{font-size:12px;opacity:.9}
.about-tag{display:inline-block;background:#fff3ec;color:var(--accent);padding:4px 16px;border-radius:20px;font-size:12px;font-weight:500;margin-bottom:16px}
.about-content h2{font-size:28px;font-weight:700;color:var(--primary);margin-bottom:16px;line-height:1.4}
.about-content p{color:var(--text-light);line-height:1.9;font-size:14px;margin-bottom:14px}
.about-feats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.af{background:#fff;border-radius:10px;padding:16px;border-left:3px solid var(--accent);box-shadow:0 2px 10px rgba(26,58,107,.06);display:flex;align-items:flex-start;gap:10px}
.af .ico{font-size:22px;flex-shrink:0}
.af .af-title{font-size:13.5px;font-weight:600;color:var(--primary)}
.af .af-desc{font-size:12px;color:var(--text-light);margin-top:2px}

/* ---------- news & articles ---------- */
.news-layout{display:grid;grid-template-columns:2fr 1fr;gap:28px}
.big-article{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:20px;border:1px solid var(--border)}
.big-art-img{width:100%;height:180px;display:flex;align-items:center;justify-content:center;font-size:56px;background:linear-gradient(135deg,var(--primary),#2060a0)}
.big-art-body{padding:20px}
.big-art-body .date{font-size:12px;color:var(--text-light);margin-bottom:8px}
.big-art-body h3{font-size:16px;font-weight:600;color:var(--primary);margin-bottom:10px;cursor:pointer;transition:color .2s}
.big-art-body h3:hover{color:var(--accent)}
.big-art-body p{font-size:13px;color:var(--text-light);line-height:1.8}
.news-side h4{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--accent)}
.news-item{padding:13px 0;border-bottom:1px dashed var(--border);display:flex;gap:14px;cursor:pointer}
.news-item:hover .ni-title{color:var(--accent)}
.ni-date{min-width:48px;text-align:center;background:var(--primary);color:#fff;border-radius:6px;padding:6px;font-size:11px;line-height:1.4;height:fit-content;flex-shrink:0}
.ni-date .day{font-size:20px;font-weight:700;display:block}
.ni-title{font-size:13px;color:var(--text);line-height:1.6;margin-bottom:3px}
.ni-excerpt{font-size:12px;color:var(--text-light)}

/* ---------- cases ---------- */
.case-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .25s;cursor:pointer}
.case-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(26,58,107,.13)}
.case-img{width:100%;height:165px;display:flex;align-items:center;justify-content:center;font-size:52px;background:linear-gradient(135deg,#1a3a6b,#1a7a6b)}
.case-body{padding:18px}
.case-body .industry{font-size:11px;color:var(--accent);font-weight:500;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.case-body h3{font-size:14px;font-weight:600;color:var(--primary);line-height:1.55}

/* ---------- contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info-card{background:#fff;border-radius:14px;padding:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.contact-info-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:24px;padding-bottom:14px;border-bottom:2px solid var(--accent)}
.ci-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:22px}
.ci-icon{width:44px;height:44px;background:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.ci-text .ci-label{font-size:12px;color:var(--text-light);margin-bottom:3px}
.ci-text .ci-value{font-size:14px;font-weight:500;color:var(--text)}
.map-placeholder{background:linear-gradient(135deg,#e8f0fb,#c0d4f0);border-radius:14px;height:360px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;font-size:60px;border:1px solid var(--border)}
.map-placeholder p{font-size:14px;color:var(--text-light)}
.form-card{background:#fff;border-radius:14px;padding:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.form-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:24px;padding-bottom:14px;border-bottom:2px solid var(--accent)}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;color:var(--text-light);margin-bottom:6px;font-weight:500}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:7px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s,box-shadow .2s;background:#fff}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,58,107,.08)}
.form-group textarea{resize:vertical;min-height:110px}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ---------- page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;padding:40px 0;text-align:center}
.page-hero h1{font-size:28px;font-weight:700;margin-bottom:10px}
.page-hero .breadcrumb{font-size:13px;opacity:.8}
.page-hero .breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s}
.page-hero .breadcrumb a:hover{color:#fff}
.page-hero .breadcrumb span{margin:0 8px;opacity:.5}

/* ---------- about page ---------- */
.about-page-grid{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start}
.about-side-img{border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.about-side-img .img-ph{width:100%;aspect-ratio:3/4;background:linear-gradient(135deg,var(--primary),#1a5a9b);display:flex;align-items:center;justify-content:center;font-size:80px}
.value-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.value-card{background:#fff;border-radius:12px;padding:24px 18px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);border-top:3px solid var(--accent)}
.value-card .vc-icon{font-size:36px;margin-bottom:12px}
.value-card h4{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:8px}
.value-card p{font-size:12.5px;color:var(--text-light);line-height:1.6}
.timeline{position:relative;padding-left:30px;margin-top:20px}
.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--border)}
.tl-item{position:relative;margin-bottom:24px}
.tl-dot{position:absolute;left:-26px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 2px var(--accent)}
.tl-year{font-size:12px;color:var(--accent);font-weight:600;margin-bottom:4px}
.tl-text{font-size:13.5px;color:var(--text);line-height:1.65}

/* ---------- honor page ---------- */
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.honor-card{background:#fff;border-radius:12px;padding:24px 18px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .25s}
.honor-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.honor-card .h-icon{width:80px;height:100px;background:linear-gradient(135deg,#fff8f0,#ffd4a0);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:44px;margin:0 auto 14px}
.honor-card h4{font-size:13.5px;font-weight:600;color:var(--primary);line-height:1.5}
.honor-card .h-year{font-size:12px;color:var(--text-light);margin-top:6px}

/* ---------- article / news page ---------- */
.article-list{display:flex;flex-direction:column;gap:0}
.article-item{background:#fff;padding:22px 24px;border-bottom:1px solid var(--border);display:flex;gap:20px;cursor:pointer;transition:background .15s}
.article-item:first-child{border-radius:12px 12px 0 0}
.article-item:last-child{border-radius:0 0 12px 12px;border-bottom:none}
.article-item:hover{background:#f8faff}
.article-date{min-width:60px;text-align:center;background:var(--primary);color:#fff;border-radius:8px;padding:8px;height:fit-content;flex-shrink:0}
.article-date .ad-day{font-size:24px;font-weight:700;line-height:1}
.article-date .ad-ym{font-size:11px;margin-top:3px}
.article-meta h3{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:8px;transition:color .2s}
.article-item:hover .article-meta h3{color:var(--accent)}
.article-meta p{font-size:13px;color:var(--text-light);line-height:1.75}
.article-meta .read-more{font-size:12px;color:var(--accent);margin-top:8px;font-weight:500}

/* ---------- product detail ---------- */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.detail-gallery{border-radius:14px;overflow:hidden;background:#fff;padding:20px;box-shadow:var(--shadow);border:1px solid var(--border)}
.detail-gallery .main-img{aspect-ratio:1/1;background:#f0f4f8;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:120px;margin-bottom:16px}
.detail-gallery .thumbs{display:flex;gap:10px}
.detail-gallery .thumb-item{width:68px;height:68px;border-radius:6px;background:#f0f4f8;display:flex;align-items:center;justify-content:center;font-size:28px;border:2px solid transparent;cursor:pointer;transition:border-color .2s}
.detail-gallery .thumb-item.active,.detail-gallery .thumb-item:hover{border-color:var(--primary)}
.detail-info{background:#fff;border-radius:14px;padding:28px;box-shadow:var(--shadow);border:1px solid var(--border)}
.detail-info h1{font-size:22px;font-weight:700;color:var(--primary);margin-bottom:18px;line-height:1.4}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.detail-tag{padding:4px 12px;border-radius:20px;font-size:12px;background:#eef2fb;color:var(--primary)}
.spec-table{width:100%;border-collapse:collapse;margin:16px 0}
.spec-table td{padding:9px 14px;border:1px solid var(--border);font-size:13px}
.spec-table td:first-child{background:#f7f8fa;font-weight:500;color:var(--text-light);width:35%}
.detail-btns{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.btn-secondary{background:#fff;color:var(--primary);border:2px solid var(--primary);padding:11px 28px;border-radius:6px;font-size:14px;font-weight:500;transition:all .2s;display:inline-block}
.btn-secondary:hover{background:var(--primary);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:#aabbd4}
.footer-main{padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.ft-brand .name{color:#fff;font-size:17px;font-weight:700;margin-bottom:10px}
.ft-brand p{font-size:13px;line-height:1.85;margin-bottom:18px}
.ft-ci{display:flex;flex-direction:column;gap:9px}
.ft-ci-item{display:flex;align-items:flex-start;gap:9px;font-size:13px}
.ft-ci-item .ico{font-size:15px;flex-shrink:0;margin-top:1px}
.ft-col h4{color:#fff;font-size:14.5px;font-weight:600;margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}
.ft-col ul{display:flex;flex-direction:column;gap:10px}
.ft-col ul li a{color:#aabbd4;font-size:13px;transition:color .2s;display:flex;align-items:center;gap:6px}
.ft-col ul li a:hover{color:var(--accent-light)}
.ft-col ul li a::before{content:'›';color:var(--accent);font-size:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:16px 0;display:flex;justify-content:space-between;align-items:center;font-size:12px;gap:12px;flex-wrap:wrap}

/* ---------- float buttons ---------- */
.float-bar{position:fixed;right:18px;bottom:40px;z-index:999;display:flex;flex-direction:column;gap:10px}
.float-btn{width:52px;height:52px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:21px;box-shadow:0 4px 18px rgba(26,58,107,.3);cursor:pointer;text-decoration:none;transition:background .2s,transform .2s;border:none}
.float-btn:hover{background:var(--accent);transform:scale(1.08)}
.float-btn.back-top{background:#8899aa}
.float-btn.back-top:hover{background:var(--primary)}

/* ---------- pagination ---------- */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:36px}
.page-btn{width:36px;height:36px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13.5px;background:#fff;border:1px solid var(--border);color:var(--text);cursor:pointer;transition:all .2s}
.page-btn:hover,.page-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- tag utilities ---------- */
.text-accent{color:var(--accent)}
.text-primary{color:var(--primary)}
.bg-white{background:#fff}
.bg-gray{background:var(--bg)}
.mt-4{margin-top:16px}
.mb-4{margin-bottom:16px}
.mb-6{margin-bottom:24px}
.mb-8{margin-bottom:32px}

/* ---------- responsive ---------- */
@media(max-width:1040px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .layout-sidebar{grid-template-columns:1fr}
  .sidebar-box{position:static}
  .about-grid,.contact-grid,.detail-grid,.about-page-grid,.news-layout,.hero-stats{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .value-cards{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .main-nav{display:none}
  .footer-grid{grid-template-columns:1fr}
  .form-grid-2{grid-template-columns:1fr}
}
@media(max-width:560px){
  .grid-4{grid-template-columns:1fr 1fr}
  .value-cards,.honor-grid{grid-template-columns:1fr}
  .logo-text .name{font-size:14px}
}