/* 中首协网站 · 移动优先;配色沿用现站的深蓝 */
:root{
  --navy:#0b2a5b; --navy-2:#123a7a; --navy-ink:#ffffff;
  --bg:#f5f6f8; --panel:#ffffff; --ink:#1c2230; --muted:#66707f; --line:#dde2ea; --soft:#eef1f6;
  --ok:#1f7a4d; --warn:#9a6400; --crit:#b3261e;
  --font:"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;
  --radius:8px; --wrap:1100px; --gutter:16px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.65;padding-bottom:64px}
img{max-width:100%;height:auto}
a{color:var(--navy-2);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.3;margin:0 0 .5em;text-wrap:balance}
h1{font-size:24px}
h2{font-size:19px}
h3{font-size:16px}
p{margin:0 0 .8em}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:6px 10px}
.skip:focus{left:8px;z-index:100}
:focus-visible{outline:2px solid var(--navy-2);outline-offset:2px}
.muted{color:var(--muted)}
.small{font-size:13px}
.btn{display:inline-block;background:var(--navy);color:#fff;border:0;border-radius:6px;padding:10px 18px;font-size:15px;font-weight:600;cursor:pointer;line-height:1.4}
.btn:hover{background:var(--navy-2);text-decoration:none}
.btn.ghost{background:transparent;color:var(--navy);border:1px solid var(--navy)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}

/* 头部 */
.site-header{background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;gap:12px;height:56px}
.brand img{display:block;height:36px;width:auto}
.search{display:flex;flex:1;max-width:420px;margin-left:auto;background:var(--soft);border-radius:999px;overflow:hidden}
.search input{flex:1;min-width:0;border:0;background:transparent;padding:8px 14px;font-size:14px;outline:none}
.search button{border:0;background:transparent;color:var(--muted);padding:0 12px;cursor:pointer;display:flex;align-items:center}
.menu-btn{width:40px;height:40px;border:0;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:8px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--navy);border-radius:2px}
.site-nav{display:none;background:var(--navy);color:#fff}
.site-nav.open{display:block}
.site-nav ul{list-style:none;margin:0;padding:6px var(--gutter)}
.site-nav li a{display:block;color:#fff;padding:10px 6px;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.site-nav li:last-child a{border-bottom:0}
.site-nav li a.active{font-weight:700}
.site-nav li a:hover{text-decoration:none;background:rgba(255,255,255,.08)}
@media (min-width:900px){
  body{padding-bottom:0}
  .bar{height:72px}
  .brand img{height:44px}
  .menu-btn{display:none}
  .site-nav{display:block}
  .site-nav ul{display:flex;gap:4px;margin:0 auto;padding:0 var(--gutter)}
  .site-nav li:first-child a{margin-left:-16px}
  .site-nav li a{border:0;padding:12px 16px;font-size:15.5px}
  .site-nav li a.active{background:var(--navy-2)}
}

/* 底部 Tab(手机) */
.tabbar{position:fixed;left:0;right:0;bottom:0;height:60px;background:var(--panel);border-top:1px solid var(--line);display:flex;z-index:50;padding-bottom:env(safe-area-inset-bottom)}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--muted);font-size:11.5px}
.tabbar a:hover{text-decoration:none}
.tabbar a.active{color:var(--navy)}
.tabbar svg{width:24px;height:24px}
@media (min-width:900px){ .tabbar{display:none} }

/* 页脚 */
.site-footer{background:#1b2130;color:#c6ccd6;padding:22px 0 26px;margin-top:36px;font-size:13px}
.site-footer a{color:#e6eaf0}
.site-footer p{margin:0 0 8px}
.flinks span{color:#8f98a8;margin-right:10px}
.flinks a,.fnav a{margin-right:14px}
.ficp a{color:#8f98a8}
/* 手机版(<900px)所有页面不显示底部信息区(友情链接、导航、联系方式、备案号),只留固定底栏 */
@media (max-width:899px){ .site-footer{display:none} main{padding-bottom:16px} }
/* 手机菜单里不显示的项(site.json 里 hideOnMobile: true) */
@media (max-width:899px){ .site-nav li.hide-m{display:none} .site-nav li:has(+ li.hide-m) a{border-bottom:0} }

/* 通用版块 */
.section{padding:22px 0 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}
.section-head h2{margin:0;padding-left:10px;border-left:4px solid var(--navy)}
.section-head a{font-size:13px;color:var(--muted)}
.page-title{padding:22px 0 6px}
.page-title h1{margin:0}
.crumb{font-size:13px;color:var(--muted);margin:0 0 10px}
.prose{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px;max-width:860px;line-height:1.85}
.prose p{margin:0 0 1em}
.prose img{display:block;margin:12px auto}
@media (min-width:900px){ .prose{padding:28px 32px} }

/* 首页 */
.hero{background:linear-gradient(90deg,rgba(8,24,58,.88) 0%,rgba(8,24,58,.55) 55%,rgba(8,24,58,.15) 100%),var(--navy) url(/assets/img/site/banner.jpg) 70% center/cover no-repeat;color:#fff;min-height:200px;display:flex;align-items:center}
.hero h1,.hero p{text-shadow:0 1px 3px rgba(0,0,0,.45)}
.hero .wrap{padding-top:28px;padding-bottom:28px}
.hero h1{font-size:26px;margin:0 0 8px;letter-spacing:.04em}
.hero p{margin:0;font-size:15px;opacity:.95}
@media (min-width:900px){ .hero{min-height:360px} .hero h1{font-size:42px} .hero p{font-size:19px} }
.entries{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:-22px;position:relative}
.entries a{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 6px 12px;text-align:center;color:var(--ink);font-weight:600;font-size:14px}
.entries a:hover{text-decoration:none;border-color:var(--navy-2)}
.entries .ic{width:48px;height:48px;border-radius:50%;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;color:#fff}
.entries .ic svg{width:26px;height:26px}
.ic.c1{background:#5b3fb8}.ic.c2{background:#1f9d55}.ic.c3{background:#f0932b}
.quick-cert{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.quick-cert .how{display:flex;gap:12px;margin-bottom:12px;font-size:13px;color:var(--muted)}
.quick-cert .how img{width:64px;height:64px;object-fit:contain;flex:none}
@media (max-width:600px){ .quick-cert .how{display:none} }
.home-grid{display:grid;gap:18px}
@media (min-width:900px){ .home-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)} }
/* 首页新闻：手机显示前 4 条；电脑上新闻框不参与撑高，高度跟随右侧课程区，超出的整条由 site.js 隐藏 */
@media (max-width:899px){ .home-news .news-list li:nth-child(n+5){display:none} }
@media (min-width:900px){
  .home-news{display:flex;flex-direction:column}
  .home-news .news-fit{flex:1;position:relative;min-height:240px}
  .home-news .news-list{position:absolute;inset:0;overflow:hidden}
}

/* 查询表单 / 结果 */
.cert-form{display:flex;gap:8px}
.cert-form input{flex:1;min-width:0;border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-size:17px;letter-spacing:.06em;font-variant-numeric:tabular-nums}
.cert-form input:focus{border-color:var(--navy-2);outline:none}
.cert-form .btn{padding:0 22px;white-space:nowrap}
.cert-hint{font-size:13px;color:var(--muted);margin:8px 0 0}
.cert-msg{margin:14px 0 0;padding:12px 14px;border-radius:6px;background:var(--soft);display:none}
.cert-msg.show{display:block}
.cert-msg.err{background:#fbe9e7;color:var(--crit)}
.cert-result{display:none;margin-top:18px}
.cert-result.show{display:block}
/* 证书卡：左列 G 标(固定尺寸，不变形),右列标题和检验项；花纹底图按原比例铺满 */
.certificate{background:#fff url(/assets/img/site/cert-pattern.jpg) center/cover no-repeat;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 22px;display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:14px;align-items:start}
.certificate .mark{display:block;width:56px;height:auto;margin-top:2px}
.certificate .body{min-width:0}
.certificate .ct{margin-bottom:14px}
.certificate .ct b{display:block;font-size:20px;color:#000;letter-spacing:.04em}
.certificate .ct small{display:block;color:#222;font-size:11.5px;overflow-wrap:anywhere}
@media (min-width:900px){ .certificate{padding:24px 26px 28px;column-gap:18px} .certificate .mark{width:72px} .certificate .ct b{font-size:22px} }
.certificate dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 12px;font-size:16px}
.certificate dt{color:var(--muted);white-space:nowrap}
.certificate dd{margin:0;font-weight:600}
.cert-photo{margin-top:14px}
.ai-kanjia{display:block;position:relative;margin-top:14px;padding:14px 92px 14px 16px;border:1px solid #e8c9b5;border-radius:var(--radius);background:linear-gradient(135deg,#fff6ef,#fff);color:inherit;text-decoration:none}
.ai-kanjia b{display:block;font-size:16px;color:#b85c22}
.ai-kanjia span{display:block;margin-top:4px;font-size:14px;color:var(--ink,#222)}
.ai-kanjia small{display:block;margin-top:6px;font-size:12px;color:var(--muted)}
.ai-kanjia em{position:absolute;right:16px;top:50%;transform:translateY(-50%);font-style:normal;font-weight:600;color:#fff;background:#b85c22;border-radius:999px;padding:8px 14px;font-size:14px;white-space:nowrap}
.ai-kanjia:hover{border-color:#b85c22}
@media (max-width:600px){ .ai-kanjia{padding-right:16px} .ai-kanjia em{position:static;display:inline-block;transform:none;margin-top:10px} }
.cert-photo h3{font-size:14px;color:var(--muted);margin:0 0 8px}
.cert-photo img{display:block;width:100%;border-radius:6px;border:1px solid var(--line);background:#fff;cursor:zoom-in}
@media (min-width:900px){ .cert-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:20px;align-items:start} .cert-photo{margin-top:0} }
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.88);display:none;align-items:center;justify-content:center;z-index:200;cursor:zoom-out}
.lightbox.show{display:flex}
.lightbox img{max-width:96vw;max-height:92vh}

/* 弹窗(400 停用通知) */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:300;padding:20px}
.modal.show{display:flex}
.modal .box{background:#fff;color:#1c2230;border-radius:10px;width:min(92vw,420px);padding:22px 22px 14px;text-align:center}
.modal h2{font-size:20px;margin:0 0 12px}
.modal p{font-size:18px;line-height:1.7;margin:0 0 14px;color:#222;text-align:left}
.modal .btn{width:100%;font-size:18px;padding:12px}

/* 列表卡片 */
.grid{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
@media (min-width:700px){ .grid{grid-template-columns:repeat(3,1fr)} }
@media (min-width:1000px){ .grid{grid-template-columns:repeat(4,1fr)} }
.course-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--ink);display:flex;flex-direction:column}
.course-card:hover{text-decoration:none;border-color:var(--navy-2)}
.course-card .thumb{aspect-ratio:4/3;background:var(--soft) center/cover no-repeat}
.course-card .body{padding:10px 10px 12px;flex:1;display:flex;flex-direction:column;gap:4px}
.course-card .t{font-weight:600;font-size:14.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-card .m{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:auto}
.course-card .m b{color:var(--ok);font-weight:600}
.tabs{display:flex;gap:18px;border-bottom:1px solid var(--line);margin-bottom:14px;overflow-x:auto}
.tabs a{padding:8px 2px;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a.active{color:var(--navy);border-color:var(--navy);font-weight:600}
.tabs a:hover{text-decoration:none}
.news-list{list-style:none;margin:0;padding:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.news-list li{display:flex;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line)}
.news-list li:last-child{border-bottom:0}
.news-list .d{flex:none;width:52px;text-align:center;color:var(--navy)}
.news-list .d b{display:block;font-size:22px;line-height:1.1}
.news-list .d small{font-size:11.5px;color:var(--muted)}
.news-list .t{font-weight:600;font-size:15px;color:var(--ink)}
.news-list .s{font-size:13px;color:var(--muted);margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article .meta{font-size:13px;color:var(--muted);margin-bottom:14px}
.article h1{font-size:22px}
.article ul{padding-left:1.4em;margin:0 0 1em}
.article li{margin:.3em 0}
.article .note{font-size:13px;color:var(--muted)}
.article .source-link{margin-top:1.4em;padding-top:12px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted)}

/* 课程详情 */
.player{background:#000;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:#cfd6e0;text-align:center;padding:16px}
.player video{width:100%;height:100%}
.player .nov{font-size:14px;line-height:1.6}
.chapters{list-style:none;margin:0;padding:0}
.chapters li{display:flex;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;margin-bottom:8px;background:var(--panel);font-size:14px}
.chapters li .n{font-weight:600}
.chapters li small{color:var(--muted)}
.course-head{display:grid;gap:14px;margin-bottom:18px}
@media (min-width:900px){ .course-head{grid-template-columns:1.4fr 1fr} }
.course-side{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.course-side h1{font-size:20px}
.course-side .price{color:var(--ok);font-weight:700;font-size:18px}

/* 价格表 */
.price-table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:14.5px}
.price-table th,.price-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.price-table th{background:var(--soft);font-weight:600;white-space:nowrap}
.price-table tr:last-child td{border-bottom:0}
.price-table .p{color:var(--crit);font-weight:700;white-space:nowrap}
@media (max-width:600px){
  .price-table thead{display:none}
  .price-table tr{display:block;border-bottom:1px solid var(--line);padding:10px 12px}
  .price-table td{display:block;border:0;padding:2px 0}
  .price-table td.name{font-weight:700;font-size:15.5px}
  .price-table td.items{color:var(--muted);font-size:13.5px}
}

/* 联系 / 留言 */
.contact-grid{display:grid;gap:16px}
@media (min-width:900px){ .contact-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)} }
.contact-info p{margin:0 0 8px;font-size:15.5px}
.map{height:280px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--soft)}
.map iframe,.map #bmap{width:100%;height:100%;border:0}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* 留言框：照老站电脑版首页"联系我们"——白框、灰底输入框、提示文字在框内、宽按钮 */
.msg-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:0 16px 18px}
.msg-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 -16px 16px;padding:12px 16px;border-bottom:1px solid var(--line)}
.msg-head h2{margin:0;font-size:18px;color:var(--navy-2);padding-left:10px;border-left:4px solid var(--navy-2)}
.msg-head a{font-size:13px;color:var(--muted)}
.msg-box > .form:first-child{margin-top:18px}
.form{display:grid;gap:12px}
.form input,.form textarea{width:100%;border:1px solid transparent;border-radius:2px;background:#f5f5f5;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink)}
.form input::placeholder,.form textarea::placeholder{color:#8a8f98}
.form textarea{min-height:120px;resize:vertical}
.form input:focus,.form textarea:focus{border-color:var(--navy-2);background:#fff;outline:none}
.form .row{display:grid;gap:12px}
.form .actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.form .submit{min-width:160px;padding:12px 24px;font-size:16px;letter-spacing:.3em;border-radius:2px;background:#1350a0}
.form .submit:hover{background:var(--navy)}
@media (max-width:699px){ .form .submit{width:100%} }
@media (min-width:700px){ .form .row{grid-template-columns:1fr 1fr 1fr} }
.form .msg{font-size:14px;min-height:1.4em}
.form .msg.ok{color:var(--ok)}
.form .msg.err{color:var(--crit)}

/* 招商合作海报 */
.poster img{display:block;width:100%;max-width:750px;margin:0 auto}

/* 搜索 */
.search-list{list-style:none;padding:0;margin:0}
.search-list li{padding:12px 0;border-bottom:1px solid var(--line)}
.search-list .k{font-size:12px;color:#fff;background:var(--navy);border-radius:3px;padding:0 6px;margin-right:6px}

@media (prefers-reduced-motion: reduce){ *{scroll-behavior:auto;transition:none!important} }