/* ===================== 茗想心理 · 站点共享样式 =====================
   配色：深青绿 #3A5B60（主色）/ 深墨绿 #2C464A / 沙滩金 #A08A5A / 深沙金 #8C7748
        浅青雾 #EDF1F0 / 浅沙金 #F3EEE3
   字体：Noto Sans SC
*/
:root{
  --green:#3A5B60; --green-d:#2C464A; --gold:#A08A5A; --gold-d:#8C7748;
  --mist:#EDF1F0; --sand:#F3EEE3; --bg:#ffffff;
  --ink:#232b2e; --muted:#6b7780; --line:#e4e8e7;
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.75; font-size:16px; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:72px 0}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand img{height:38px;width:auto}
.nav-links{display:flex;gap:26px;font-size:15px}
.nav-links a{color:var(--ink);position:relative;padding:6px 0;transition:color .2s}
.nav-links a:hover{color:var(--green)}
.nav-links a.on{color:var(--green);font-weight:700}
.nav-links a.on::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold)}
.nav-cta{display:flex;gap:10px;align-items:center}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:12px 26px;border-radius:2px;font-size:15px;font-weight:500;
  cursor:pointer;border:1px solid transparent;transition:all .2s;letter-spacing:1px}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-d)}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-d)}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#fff}
.btn-sm{padding:8px 16px;font-size:13px}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(160deg,var(--green) 0%,var(--green-d) 100%);color:#fff;padding:96px 0 84px}
.hero .container{display:flex;flex-direction:column;align-items:flex-start;gap:18px}
.hero-kicker{font-size:13px;letter-spacing:4px;color:var(--gold);text-transform:uppercase}
.hero h1{font-size:44px;font-weight:900;line-height:1.25;max-width:760px}
.hero p{font-size:17px;color:rgba(255,255,255,.82);max-width:620px}
.hero-actions{display:flex;gap:14px;margin-top:10px;flex-wrap:wrap}
.hero .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.hero .btn-ghost:hover{background:#fff;color:var(--green-d)}

/* ---------- 内页 Hero ---------- */
.page-hero{background:var(--mist);padding:64px 0 56px;border-bottom:1px solid var(--line)}
.page-hero .page-kicker{font-size:12px;letter-spacing:3px;color:var(--gold-d);text-transform:uppercase}
.page-hero h1{font-size:36px;font-weight:900;color:var(--green-d);margin:10px 0 8px}
.page-hero p{color:var(--muted);font-size:16px}

/* ---------- 区块标题 ---------- */
.sec-head{text-align:center;max-width:680px;margin:0 auto 44px}
.sec-kicker{font-size:12px;letter-spacing:3px;color:var(--gold-d);text-transform:uppercase}
.sec-title{font-size:30px;font-weight:900;color:var(--green-d);margin:8px 0 10px}
.sec-sub{color:var(--muted);font-size:15px}

/* ---------- 四板块卡片（首页） ---------- */
.block-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.block-card{position:relative;border:1px solid var(--line);border-radius:4px;padding:34px 30px 30px;
  background:#fff;transition:all .25s;overflow:hidden}
.block-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:var(--gold);opacity:0;transition:.25s}
.block-card:hover{box-shadow:0 14px 36px rgba(44,70,74,.12);transform:translateY(-3px)}
.block-card:hover::before{opacity:1}
.block-num{font-size:13px;letter-spacing:2px;color:var(--gold-d);font-weight:700}
.block-card h3{font-size:23px;color:var(--green-d);margin:10px 0 8px;font-weight:900}
.block-card p{color:var(--muted);font-size:14.5px;min-height:66px}
.block-link{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:600;font-size:14px;margin-top:14px}
.block-link span{transition:transform .2s}
.block-card:hover .block-link span{transform:translateX(4px)}

/* ---------- 通用卡片网格 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px 24px;display:flex;flex-direction:column;transition:all .25s}
.card:hover{box-shadow:0 12px 30px rgba(44,70,74,.10);transform:translateY(-3px)}
.card-tag{display:inline-block;align-self:flex-start;font-size:12px;letter-spacing:1px;color:var(--gold-d);
  background:var(--sand);padding:4px 12px;border-radius:20px;margin-bottom:14px}
.card h3{font-size:19px;color:var(--green-d);font-weight:700;line-height:1.45;margin-bottom:10px}
.card .lead{color:var(--ink);font-size:14.5px;flex:1}
.card .meta{color:var(--muted);font-size:13px;margin:12px 0}
.card-link{margin-top:6px;color:var(--green);font-weight:600;font-size:14px}
.card-link:hover{color:var(--gold-d)}

/* ---------- 课程详情 ---------- */
.detail-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.detail-day{border:1px solid var(--line);border-radius:4px;padding:22px 22px}
.dd-day{font-size:13px;letter-spacing:2px;color:var(--gold-d);font-weight:700}
.detail-day h3{font-size:19px;color:var(--green-d);margin:6px 0 4px}
.dd-meta{font-size:12.5px;color:var(--muted)}
.dd-desc{font-size:14px;color:var(--ink);margin:10px 0}
.dd-list{margin:6px 0 0;padding-left:20px;font-size:14px;color:var(--ink)}
.dd-list li{margin:4px 0}
.learn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.learn-card{border:1px solid var(--line);border-radius:4px;padding:20px;background:#fff}
.learn-num{font-size:13px;color:var(--gold-d);font-weight:700;letter-spacing:1px}
.learn-card h4{font-size:16px;color:var(--green-d);margin:8px 0 6px}
.learn-card p{font-size:13.5px;color:var(--muted)}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.adv-card{border:1px solid var(--line);border-radius:4px;padding:20px;background:var(--mist)}
.adv-card h4{font-size:16px;color:var(--green-d);margin-bottom:6px}
.adv-card p{font-size:13.5px;color:var(--ink)}

/* ---------- 关于/品牌条 ---------- */
.about{background:var(--sand)}
.about .container{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.about h2{font-size:28px;color:var(--green-d);font-weight:900;margin-bottom:14px}
.about p{color:var(--ink);font-size:15.5px;margin-bottom:12px}
.about .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.about .tag{font-size:13px;color:var(--green-d);background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:20px}

/* ---------- CTA ---------- */
.cta{background:var(--green);color:#fff;text-align:center}
.cta h2{font-size:28px;font-weight:900;margin-bottom:10px}
.cta h2 em{color:var(--gold);font-style:normal}
.cta p{color:rgba(255,255,255,.82);margin-bottom:22px}

/* ---------- 文章正文 ---------- */
.article-body{max-width:760px;margin:0 auto}
.article-body p{margin:16px 0;font-size:16.5px;color:var(--ink)}
.article-body h2{font-size:22px;color:var(--green-d);font-weight:800;margin:34px 0 10px}
.article-body h4{font-size:18px;color:var(--green-d);font-weight:800;margin:24px 0 8px}
.article-body ul,.article-body ol{margin:14px 0 14px 22px;font-size:16px;color:var(--ink)}
.article-body li{margin:8px 0}
.article-body strong{color:var(--green-d)}
.article-body blockquote{border-left:3px solid var(--gold);background:var(--sand);
  padding:14px 18px;margin:18px 0;color:var(--ink);font-size:15.5px;border-radius:0 4px 4px 0}
.article-meta{color:var(--muted);font-size:14px;margin-bottom:6px}

/* ---------- 公司动态列表 ---------- */
.news-item{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.news-date{flex:0 0 88px;font-size:13px;color:var(--gold-d);font-weight:700;letter-spacing:1px;padding-top:4px}
.news-body{flex:1}
.news-body .tag{font-size:12px;color:var(--gold-d);background:var(--sand);padding:3px 10px;border-radius:20px;margin-right:8px}
.news-body h3{font-size:19px;color:var(--green-d);margin:8px 0 6px;font-weight:700}
.news-body p{color:var(--muted);font-size:14.5px}

/* ---------- 页脚 ---------- */
.footer{background:var(--green-d);color:rgba(255,255,255,.8);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.footer .f-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer .f-brand img{height:34px;background:#fff;border-radius:4px;padding:3px}
.footer .f-brand b{color:#fff;font-size:16px}
.footer p{font-size:14px;margin:6px 0}
.footer h5{color:var(--gold);font-size:14px;letter-spacing:1px;margin-bottom:12px}
.footer a{display:block;font-size:14px;color:rgba(255,255,255,.78);margin:7px 0;transition:color .2s}
.footer a:hover{color:var(--gold)}
.f-links{border-top:1px solid rgba(255,255,255,.15);margin-top:30px;padding-top:18px;font-size:13.5px}
.f-links a{display:inline;color:var(--gold);margin:0 6px}
.f-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:14px;
  font-size:12.5px;color:rgba(255,255,255,.55)}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .learn-grid,.adv-grid{grid-template-columns:repeat(2,1fr)}
  .about .container{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{display:none}
  .block-grid,.cards,.detail-wrap{grid-template-columns:1fr}
  .learn-grid,.adv-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .page-hero h1{font-size:27px}
  .sec-title{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column;gap:6px}
}

/* 关于水木老师 事实区块 */
.about-teacher h2{margin-bottom:14px}
.fact-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:14px}
.fact-list li{position:relative;padding-left:18px;line-height:1.85;color:var(--ink);font-size:15px}
.fact-list li::before{content://;position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--gold);border-radius:50%}
.fact-list li span{display:block;font-weight:700;color:var(--green);margin-bottom:2px;font-size:14.5px}

/* FAQ */
.faq{padding:72px 0;background:var(--mist)}
.faq .sec-head{text-align:center;margin-bottom:36px}
.faq .sec-head h2{font-size:26px;color:var(--green);margin:0 0 8px}
.faq .sec-sub{margin:0;color:var(--muted);font-size:14px}
.faq-list{display:grid;gap:16px;max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 24px}
.faq-item h3{margin:0 0 8px;font-size:16.5px;color:var(--green)}
.faq-item p{margin:0;line-height:1.85;color:var(--ink);font-size:14.5px}