:root{
  --ink:#1d2321; --muted:#5f6b66; --line:#e2e3de; --bg:#fbfaf6;
  --brand:#1f5c4a; --brand-soft:#eef4f0; --accent:#a8843c;
  --max:860px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;}
header.site{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;
  max-width:var(--max);margin:0 auto;padding:18px 20px;border-bottom:1px solid var(--line)}
header.site .logo{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:19px;letter-spacing:.04em;color:var(--brand);text-decoration:none}
header.site .logo img{height:34px;width:auto;display:block}
header.site nav{display:flex;flex-wrap:wrap;gap:14px;font-size:14.5px}
header.site nav a{color:var(--muted);text-decoration:none}
header.site nav a:hover{color:var(--brand)}
main{max-width:var(--max);margin:0 auto;padding:28px 20px 64px}
h1{font-size:26px;line-height:1.35;margin:0 0 14px;letter-spacing:-.01em}
h2{font-size:19px;margin:38px 0 12px;padding-bottom:6px;border-bottom:2px solid var(--brand-soft)}
h3{font-size:16px;margin:22px 0 8px;color:var(--brand)}
p,li,td,th,summary{text-wrap:pretty}
p{margin:10px 0}
a{color:var(--brand)}
.lead{font-size:16.5px;color:#33413c}
.hero{position:relative;padding:0;margin-bottom:8px}
.hero::before{content:"";position:absolute;left:-14px;top:4px;bottom:4px;width:4px;background:var(--accent);border-radius:2px}
.hero h1{margin-bottom:10px}
.facts{width:100%;border-collapse:collapse;margin:14px 0;font-size:15px;background:#fff}
.facts th{width:8.5em;white-space:nowrap;text-align:left;vertical-align:top;background:var(--brand-soft);color:#244a3d;
  font-weight:600;padding:9px 12px;border:1px solid var(--line)}
.facts td{padding:9px 12px;border:1px solid var(--line)}
.list{width:100%;border-collapse:collapse;font-size:14.5px;margin:12px 0;background:#fff}
.list th,.list td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.list th{background:var(--brand-soft);font-weight:600}
.list tbody tr:nth-child(even){background:#fcfcfa}
ol.moves,ul{padding-left:1.35em}
ol.moves li,ul li{margin:7px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 4px}
.chip{display:inline-block;padding:5px 11px;border:1px solid var(--line);border-radius:999px;
  background:#fff;text-decoration:none;font-size:14px;color:#2a3a34}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.tag{display:inline-block;background:var(--brand-soft);color:#24513f;border-radius:4px;
  padding:2px 8px;margin:2px 6px 2px 0;font-size:13px}
.cta{margin:26px 0}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;
  padding:11px 20px;border-radius:6px;font-size:15px}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:18px 0}
.gal figure{margin:0}
.gal img{width:100%;height:170px;object-fit:cover;border-radius:6px;display:block}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}
.faq summary{cursor:pointer;font-weight:600;color:#26453a}
.faq details p{color:#3a4744;margin:8px 0 2px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 14px;font-size:13px;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#b8c0ba}
.crumbs a{color:var(--muted);text-decoration:none}
.block{margin:34px 0}
.meta{color:var(--muted);font-size:13.5px}
footer.site{max-width:var(--max);margin:0 auto;padding:26px 20px 36px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13.5px}
@media (max-width:640px){
  h1{font-size:22px} h2{font-size:17.5px}
  .facts th{width:6.2em;white-space:normal}
  .list{font-size:13.5px}
  .gal img{height:140px}
}

/* ---- 整齐度统一 ---- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0}
.table-wrap>table{margin:0;min-width:100%}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.facts td,.facts th{vertical-align:top}
.list tbody tr:hover{background:#f7faf8}
.qalist{list-style:none;padding:0;display:grid;gap:12px;margin:16px 0}
.qalist>li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px}
.qalist>li a{text-decoration:none}
.qalist>li p{margin:6px 0 0;color:#4a5652;font-size:14.5px;line-height:1.7}
.toc{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 18px;margin:18px 0}
.toc strong{display:block;margin-bottom:6px;color:var(--brand)}
.toc ol{columns:2;column-gap:28px;padding-left:1.2em;margin:4px 0;font-size:14.5px}
.toc a{text-decoration:none;color:#33413c}
.toc a:hover{color:var(--brand);text-decoration:underline}
.answer{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-soft);border-radius:0 8px 8px 0;padding:6px 20px;margin:16px 0}
.answer p{margin:12px 0}
h2+.lead,h1+.lead{margin-top:12px}
section.block>h3{margin-top:18px}
@media(max-width:640px){.toc ol{columns:1}}

/* ---- 整齐度第二轮：列宽/节奏/标签栅格 ---- */
.facts{table-layout:fixed}
.facts th{width:9.5em;padding:10px 14px}
.facts td{padding:10px 14px;line-height:1.7}
.list{table-layout:auto}
.list th:first-child,.list td:first-child{white-space:nowrap}
.list td.num,.list th.num{width:4.5em;text-align:right;padding-right:14px}
.chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:8px}
.chip{text-align:center;padding:7px 10px;line-height:1.4}
.chip:hover{background:var(--brand-soft)}
p,li,td,th{word-break:normal;line-break:strict;text-wrap:pretty}
h2{margin:42px 0 14px}
section.block{margin:38px 0}
section.block>h2+p{margin-top:10px}
section.block>.chips{margin-top:12px}
.toc ol{columns:2;column-gap:18px}
@media(max-width:640px){
  .chips{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .facts th{width:7em;white-space:normal;padding:9px 10px}
  .facts td{padding:9px 10px}
}

.video{margin:18px 0;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px}
.video video{display:block;width:100%;border-radius:6px;background:#000;aspect-ratio:16/9}
.video figcaption{margin-top:8px;font-size:14px;color:#33413c}

/* ---- 整齐度第三轮：目录编号对齐 + 标签等宽 ---- */
.toc ol{list-style:none;padding-left:0;counter-reset:toc;margin:6px 0}
.toc li{counter-increment:toc;display:flex;gap:8px;line-height:1.9}
.toc li::before{content:counter(toc) ".";min-width:1.7em;color:var(--muted);font-variant-numeric:tabular-nums}
.chips>.chip{display:block;width:100%;box-sizing:border-box}



@media(max-width:640px){
  
  
  
  
  
}

/* ---- 页脚：单列流式，行内项不可断行 ---- */
footer.site{border-top:1px solid var(--line);background:#fcfcfa}
.foot-name{margin:0;font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;word-break:keep-all}
.foot-name span{font-weight:400;color:var(--muted);font-size:13.5px}
.foot-tag{margin:2px 0 14px;color:var(--brand);font-size:13.5px;word-break:keep-all}
.foot-line{display:grid;gap:7px 28px;margin:0 0 10px;font-size:13px;color:#4f5a55;line-height:1.85}
.foot-line.phones{grid-template-columns:repeat(2,minmax(0,1fr))}
.foot-line.legal{grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 28px;font-size:12.8px}
.foot-line.addr{grid-template-columns:1fr;margin-top:-2px}
.foot-line.phones{padding-top:12px;border-top:1px solid #ecebe4}
.foot-line:last-of-type{margin-bottom:0}
.foot-item{white-space:nowrap;display:inline-flex;align-items:baseline;gap:5px}
.foot-item em{font-style:normal;color:var(--muted);font-size:12.5px}
.foot-item a{color:#33413c;text-decoration:none;font-variant-numeric:tabular-nums}
.foot-item a:hover{color:var(--brand);text-decoration:underline}

.foot-bottom{display:flex;justify-content:space-between;gap:6px 20px;flex-wrap:wrap;
  margin-top:12px;padding-top:10px;border-top:1px solid #ecebe4;font-size:12.5px;color:#7b857f}
@media(max-width:640px){
  .foot-line{gap:5px 14px;font-size:12.5px}
  .foot-line.phones{grid-template-columns:1fr;gap:7px}
  .foot-line.legal{grid-template-columns:1fr;gap:5px}
  .foot-line.addr{grid-template-columns:1fr}
  .foot-item{white-space:normal}
  .foot-bottom{flex-direction:column;gap:3px}
}

/* 两栏卡片（首页/交叉入口） */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}
.two-col .card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px 18px;min-width:0}
.two-col .card h3{margin:0 0 6px;font-size:15.5px}
.two-col .card p{margin:0;font-size:14px;color:#4a5652;line-height:1.75}
@media(max-width:640px){.two-col{grid-template-columns:1fr}}

.subject-note{font-size:13px;color:#6a7570;background:#f7f9f6;border-left:3px solid var(--accent);
  padding:8px 12px;border-radius:0 4px 4px 0;margin:14px 0 6px;line-height:1.7}

/* GEO 版式补充：受众句、数据徽章、小表 */
.hero-audience{font-size:15.5px;color:#8a6a24;font-weight:600;letter-spacing:.01em;margin:0 0 10px}
.badges{display:flex;flex-wrap:wrap;gap:10px 14px;margin:16px 0 18px}
.badges span{background:#fff;border:1px solid var(--line);border-radius:6px;padding:7px 12px;font-size:14px;color:var(--muted);min-width:136px}
.badges strong{color:var(--brand);font-size:16px;margin-right:4px}
.chips.compact{gap:6px;margin:0;grid-template-columns:repeat(auto-fill,minmax(92px,1fr))}
.chips.compact .chip{font-size:13px;padding:3px 9px;text-align:center}
table.mini{border-collapse:collapse;font-size:14.5px;margin:6px 0 8px;table-layout:fixed;width:100%}
table.mini th,table.mini td{border:1px solid var(--line);padding:6px 10px;text-align:left}
table.mini th{background:var(--brand-soft);color:#244a3d;font-weight:600;white-space:normal}
.callout{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:0 6px 6px 0;padding:10px 14px;font-size:14.5px;color:#3a4842;margin:16px 0}
.qalist li{margin-bottom:14px}
@media(max-width:520px){.badges span{font-size:13px;padding:6px 9px}table.mini{font-size:13.5px}}

/* 移动端防溢出：视频与长表 */
.video-wrap{max-width:100%}
.video-wrap video,main video{max-width:100%;height:auto;display:block;margin:0 auto;border-radius:6px;background:#000}
.facts, .list{max-width:100%}
@media(max-width:640px){
  table.mini{font-size:13px}
  table.mini th,table.mini td{padding:5px 6px}
  main{padding-left:14px;padding-right:14px}
  header.site{padding-left:14px;padding-right:14px}
}

ul.toc-ol{columns:2;column-gap:28px;padding-left:20px;font-size:15px;margin:10px 0 4px}
@media(max-width:640px){ul.toc-ol{columns:1}}
#faq h3, main h3{scroll-margin-top:12px}

/* 公众号二维码卡片 */
.qr-card{margin:14px 0 6px;padding:14px;border:1px solid var(--line,#e3e6e1);border-radius:10px;background:#fbfcfa;text-align:center;max-width:280px}
.qr-row{display:flex;gap:16px;flex-wrap:wrap;margin:14px 0 6px}
.qr-row .qr-card{margin:0;flex:1 1 220px;max-width:260px}
.qr-card img{display:block;width:220px;height:220px;margin:0 auto 8px;border-radius:6px}
.qr-card figcaption{font-size:12.5px;color:#5c655f;line-height:1.65}
.qr-card figcaption b{color:#22302a;font-size:13px;display:block;margin-bottom:2px}
@media (max-width:480px){.qr-row .qr-card{max-width:100%;flex:1 1 100%}.qr-card img{width:190px;height:190px}}

/* AI 研学顾问（站内选型器） */
.adv{display:flex;gap:20px;flex-wrap:wrap;margin:18px 0 8px;align-items:flex-start}
.adv-steps{flex:1 1 380px;min-width:0}
.adv-out{flex:1 1 320px;min-width:0}
.adv-step{margin-bottom:14px}
.adv-q{font-size:14px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.adv-n{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--accent,#3d6b55);color:#fff;font-size:12px;align-items:center;justify-content:center;flex:none}
.adv-chips{display:flex;flex-wrap:wrap;gap:8px}
.adv-chip{cursor:pointer;font-size:13px;padding:6px 12px;border:1px solid #d8ded9;border-radius:16px;background:#fff;color:#2f3a34;line-height:1.4}
.adv-chip:hover{border-color:#8faa9c}
.adv-chip.active{background:var(--accent,#3d6b55);border-color:var(--accent,#3d6b55);color:#fff}
.adv-card{border:1px solid #e3e6e1;border-radius:10px;padding:16px;background:#fbfcfa}
.adv-tag{font-size:12px;color:#6a7570;margin:0 0 4px}
.adv-price{font-size:16px;margin:0 0 6px}
.adv-price b{font-size:24px;color:#1f2a24}
.adv-basis,.adv-hint,.adv-from{font-size:12.5px;color:#6a7570;line-height:1.7;margin:6px 0}
.adv-sub{font-size:13px;font-weight:600;margin:14px 0 6px}
.adv-routes{margin:0;padding-left:18px}
.adv-routes li{margin:5px 0;font-size:13.5px}
.adv-why{display:block;color:#6a7570;font-size:12.5px}
.adv-next{font-size:13px;line-height:1.75;background:#fff;border:1px dashed #cfd8d2;border-radius:8px;padding:10px 12px}
.adv-cta{margin:12px 0 0}
@media (max-width:720px){.adv{flex-direction:column}.adv-steps,.adv-out{flex:1 1 auto;width:100%}}

/* 课程点：关键事实列表 */
.keyfacts{margin:10px 0 4px;padding:0 0 0 2px;list-style:none}
.keyfacts li{position:relative;padding-left:16px;margin:6px 0;font-size:13.5px;line-height:1.7;color:#39443d}
.keyfacts li::before{content:"·";position:absolute;left:4px;color:var(--accent,#3d6b55);font-weight:700}

/* 首页：区域页跳转 */
.xmore{display:inline-block;margin-top:8px;font-size:13px;color:var(--accent,#3d6b55);text-decoration:none;border-bottom:1px dotted currentColor}
.xmore:hover{opacity:.8}

/* 家长常问：事实块 */
.wfacts{margin:10px 0 6px;padding:0;list-style:none;counter-reset:wf}
.wfacts li{position:relative;padding:9px 12px 9px 34px;margin:6px 0;font-size:13.5px;line-height:1.72;
  background:color-mix(in srgb,#3d6b55 7%,transparent);border-left:3px solid var(--accent,#3d6b55);border-radius:0 5px 5px 0}
.wfacts li::before{counter-increment:wf;content:counter(wf);position:absolute;left:11px;top:9px;
  font-size:12px;font-weight:700;color:var(--accent,#3d6b55);opacity:.75}
.wfacts b{color:var(--foreground)}

/* 线路逐日表 */
.table-wrap{overflow-x:auto}
table.itin{table-layout:auto;min-width:720px}
table.itin th{white-space:nowrap}
table.itin td.sm{font-size:12.5px;line-height:1.65}
.hchip{display:inline-block;margin-left:4px;font-size:11px;padding:0 4px;border-radius:3px;
  background:color-mix(in srgb,var(--accent,#3d6b55) 14%,transparent);color:var(--accent,#3d6b55)}
.train{font-variant-numeric:tabular-nums;color:var(--accent,#3d6b55)}
.hchip.alt{background:transparent;border:1px solid var(--border);color:var(--muted-foreground)}