:root{
--c1:#003366;--c2:#0099CC;--c3:#00CC66;
--bg:#FFFFFF;--bg2:#f6f7f9;--line:#e5e7eb;
--text:#000033;--text2:#0099CC;--text3:#003366;
--card:#ffffff;--card2:#FFFFFF;--white:#ffffff;
--foot:#003366;--foottext:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:15px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
:focus-visible{outline:2px solid var(--c3)}

/* topbar */
.topbar{background:var(--c1);color:var(--white);font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:10px;flex-wrap:wrap}
.topbar a{opacity:.92}
.topbar a:hover{opacity:1;text-decoration:underline}

/* header */
header.site{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:16px}
.logo{display:flex;align-items:center;gap:10px}
.logo .mark{width:40px;height:40px;border-radius:6px;background:var(--c1);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;flex:none}
.logo .txt strong{display:block;font-size:19px;line-height:1.3;color:var(--c1)}
.logo .txt span{font-size:12px;color:var(--text2);letter-spacing:1px}
nav.main ul{display:flex;gap:4px}
nav.main a{display:block;padding:10px 14px;font-size:15px;border-radius:4px}
nav.main a:hover{background:var(--bg2);color:var(--c1)}
nav.main a.on{background:var(--c1);color:var(--white)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:6px;background:var(--white);cursor:pointer}
.burger i{display:block;width:20px;height:2px;background:var(--c1);margin:4px auto}

/* banner */
.hero{position:relative;min-height:340px;display:flex;align-items:center;background:var(--c1);overflow:hidden}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.hero .in{position:relative;z-index:2;color:#fff;padding:60px 0;width:100%}
.hero h1{font-size:34px;line-height:1.35;margin-bottom:12px;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.hero p{font-size:16px;max-width:760px;opacity:.95;text-shadow:0 1px 8px rgba(0,0,0,.45)}
.hero .btns{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 26px;border-radius:4px;background:var(--c3);color:#111;font-weight:700;font-size:15px}
.btn.ghost{background:transparent;border:1px solid #fff;color:#fff}

/* section */
section{padding:52px 0}
section.alt{background:var(--bg2)}
.sec-head{text-align:center;margin-bottom:32px}
.sec-head h2{font-size:27px;color:var(--c1);margin-bottom:8px;position:relative;padding-bottom:12px}
.sec-head h2:after{content:"";position:absolute;left:50%;bottom:0;width:56px;height:3px;background:var(--c3);transform:translateX(-50%)}
.sec-head p{color:var(--text2);font-size:14px}

/* cards */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.12);border-color:var(--c2)}
.card .pic{aspect-ratio:4/3;overflow:hidden;background:var(--bg2)}
.card .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .pic img{transform:scale(1.06)}
.card .bd{padding:14px 16px 18px}
.card h3{font-size:16px;margin-bottom:6px;line-height:1.5;color:var(--c1)}
.card h3 a:hover{color:var(--c3)}
.card p{font-size:13.5px;color:var(--text2);height:3.9em;overflow:hidden}
.card .more{margin-top:10px;font-size:13px;color:var(--c3);font-weight:700}

/* 列表行 */
.rowlist li{border-bottom:1px dashed var(--line);padding:14px 0;display:flex;justify-content:space-between;gap:14px;align-items:baseline}
.rowlist li:hover{background:var(--bg2)}
.rowlist a{font-size:15.5px}
.rowlist a:hover{color:var(--c3)}
.rowlist time,.rowlist em{font-size:13px;color:var(--text2);flex:none}

/* breadcrumb */
.crumb{background:var(--bg2);border-bottom:1px solid var(--line);font-size:13px}
.crumb .wrap{padding:12px 16px;color:var(--text2)}
.crumb a{color:var(--text2)}
.crumb a:hover{color:var(--c3)}
.crumb span{margin:0 6px;opacity:.6}

/* article */
.article{padding:44px 0}
.article .head{text-align:center;margin-bottom:26px}
.article h1{font-size:28px;line-height:1.4;color:var(--c1);margin-bottom:10px}
.meta{font-size:13px;color:var(--text2)}
.figure{margin:0 0 22px;border-radius:8px;overflow:hidden}
.figure img{width:100%}
.figure figcaption{font-size:12.5px;color:var(--text2);padding:8px 12px;background:var(--bg2)}
.post{font-size:15.5px;line-height:2}
.post h2{font-size:20px;margin:26px 0 12px;color:var(--c1);border-left:4px solid var(--c3);padding-left:10px}
.post h3{font-size:17px;margin:20px 0 10px;color:var(--c1)}
.post p{margin-bottom:14px}
.post ul{margin:0 0 16px;padding-left:20px;list-style:disc}
.post li{margin-bottom:8px}
.post strong{color:var(--c1)}
table.spec{width:100%;border-collapse:collapse;margin:8px 0 22px;font-size:14.5px}
table.spec th,table.spec td{border:1px solid var(--line);padding:10px 12px;text-align:left}
table.spec th{background:var(--bg2);width:150px;color:var(--c1)}
.tags{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text2)}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:26px;font-size:14px;flex-wrap:wrap}
.pager a{background:var(--bg2);padding:8px 14px;border-radius:4px}
.pager a:hover{background:var(--c1);color:var(--white)}

/* about */
.about-box{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.about-box p{margin-bottom:14px;color:var(--text2)}
.timeline{border-left:2px solid var(--line);padding-left:20px;margin-top:10px}
.timeline li{position:relative;margin-bottom:18px}
.timeline li:before{content:"";position:absolute;left:-27px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--c3)}
.timeline b{color:var(--c1);margin-right:10px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:26px}
.stats div{background:var(--bg2);border-radius:8px;padding:18px;text-align:center}
.stats b{display:block;font-size:26px;color:var(--c1)}
.stats span{font-size:13px;color:var(--text2)}
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv div{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:22px}
.adv b{display:block;font-size:17px;color:var(--c1);margin-bottom:8px}
.adv p{font-size:13.5px;color:var(--text2)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.info-list li{padding:12px 0;border-bottom:1px dashed var(--line)}
.info-list b{color:var(--c1);display:inline-block;min-width:78px}
form.ct label{display:block;margin-bottom:14px;font-size:14px}
form.ct input,form.ct textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:5px;font-size:14px;font-family:inherit;background:var(--card);color:var(--text)}
form.ct input:focus,form.ct textarea:focus{border-color:var(--c2)}
form.ct button{background:var(--c1);color:var(--white);border:0;padding:12px 30px;border-radius:5px;font-size:15px;cursor:pointer}
form.ct button:hover{background:var(--c3);color:#111}
.tip{font-size:13px;color:#c0392b;margin-top:8px;display:none}
.map{background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:18px;font-size:14px;color:var(--text2)}

/* footer */
footer.site{background:var(--foot);color:var(--foottext);padding:40px 0 0;margin-top:10px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px;padding-bottom:26px}
footer.site h4{font-size:16px;margin-bottom:14px;position:relative;padding-bottom:8px}
footer.site h4:after{content:"";position:absolute;left:0;bottom:0;width:34px;height:2px;background:var(--c3)}
footer.site p,footer.site li{font-size:13.5px;opacity:.86;line-height:2}
footer.site a:hover{color:var(--c3);text-decoration:underline}
footer.site .bottom{border-top:1px solid rgba(255,255,255,.18);padding:16px 0;font-size:13px;text-align:center;opacity:.85}
footer.site .bottom span{margin:0 6px}
.fbar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;align-items:center}

/* 浮动工具 */
#top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:50%;background:var(--c1);color:var(--white);border:0;font-size:18px;cursor:pointer;display:none;z-index:60}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.pagination a,.pagination b{padding:8px 14px;border:1px solid var(--line);border-radius:4px;font-size:14px;background:var(--card)}
.pagination a:hover{background:var(--c1);color:var(--white)}
.pagination b{background:var(--c1);color:var(--white)}

@media(max-width:1000px){
.g4,.adv,.stats{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(2,1fr)}
footer.site .cols{grid-template-columns:1fr 1fr}
.about-box,.contact-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
header.site .wrap{min-height:60px}
.burger{display:block}
nav.main{position:absolute;left:0;right:0;top:100%;background:var(--white);border-bottom:1px solid var(--line);display:none;box-shadow:0 8px 20px rgba(0,0,0,.08)}
nav.main.open{display:block}
nav.main ul{flex-direction:column;padding:8px}
nav.main a{padding:12px}
.hero{min-height:250px}
.hero h1{font-size:24px}
.hero p{font-size:14px}
.g3,.g4,.adv,.stats{grid-template-columns:1fr}
section{padding:36px 0}
.sec-head h2{font-size:22px}
.article h1{font-size:22px}
footer.site .cols{grid-template-columns:1fr}
}