/* ==========================================================
   数智天工官网 v2 · 全站样式
   设计基准：资讯卡片区块（白卡片 + 青蓝配色 + 左对齐分区标题）
   移动端优先；断点 600px / 900px；零 JS
   ========================================================== */
:root{
  --blue:#12414B; --blue-d:#0E2A33; --blue-l:#E7F1F3; --blue-xl:#F4FAFB;
  --ink:#1c1e22; --ink2:#4a4e57; --ink3:#8a8f99;
  --line:#e7eaef; --bg:#f6f8fa; --card:#fff;
  --amber:#B8741A; --amber-l:#FDF3E3; --green:#0F6E56;
  --hero-a:#0E2A33; --hero-b:#12414B; --hero-c:#0A1E25; --hero-acc:#FFC24B;
  --acc-ink:#C2410C; --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;padding-bottom:64px;
}
img{max-width:100%;height:auto;display:block;border-radius:8px}
a{text-decoration:none;color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.center{text-align:center}
.mt{margin-top:14px}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
     border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap;min-height:52px;padding-top:6px;padding-bottom:6px}
.nav .brand{font-weight:600;font-size:16px;color:var(--blue-d);display:flex;align-items:center;gap:8px}
.nav .brand img{width:27px;height:27px;border-radius:50%;flex:none}
.nav-tag{font-size:12.5px;color:var(--blue-d);letter-spacing:.3px;font-weight:600;
     background:var(--blue-xl);border-radius:20px;padding:3px 12px;order:3}
.nav-links{display:flex;align-items:center;gap:14px;margin-left:auto;order:2}
.nav-links a{font-size:14px;color:var(--ink2);padding:6px 8px;border-radius:8px}
.nav-links a:hover{color:var(--blue);background:var(--blue-l)}
.nav-cta{color:#fff!important;background:var(--blue);border-radius:20px;padding:6px 15px!important}
@media(max-width:560px){.nav-tag{display:none}}

/* ===== Hero（浅色质感，与卡片风格同源） ===== */
.hero{position:relative;overflow:hidden;padding:36px 0 30px;border-bottom:1px solid var(--line);
      background:
        radial-gradient(90% 62% at 88% 2%, rgba(18,65,75,.13) 0%, rgba(18,65,75,0) 62%),
        radial-gradient(75% 55% at 2% 100%, rgba(255,194,75,.20) 0%, rgba(255,194,75,0) 62%),
        linear-gradient(180deg,#FFFFFF 0%,#EEF6F8 100%)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
      background-image:radial-gradient(rgba(18,65,75,.13) 1px, transparent 1px);
      background-size:20px 20px;
      -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7) 0%,rgba(0,0,0,0) 68%);
      mask-image:linear-gradient(180deg,rgba(0,0,0,.7) 0%,rgba(0,0,0,0) 68%)}
.hero .wrap{position:relative;z-index:1}
.tagline{display:inline-block;font-size:12.5px;letter-spacing:1px;font-weight:600;
      background:#fff;border:1px solid #D3E3E9;color:#12414B;
      padding:4px 12px;border-radius:20px;margin-bottom:14px;box-shadow:0 2px 8px rgba(14,39,51,.07)}
.hero h1{font-size:clamp(24px,5vw,34px);line-height:1.4;font-weight:700;letter-spacing:.5px;color:#0E2733;
      text-wrap:balance}
.hero h1 em{font-style:normal;position:relative;color:#0E2A33;white-space:nowrap;
      background:linear-gradient(180deg,rgba(255,194,75,0) 56%,rgba(255,194,75,.62) 56%);
      padding:0 3px;border-radius:3px}
.hero-slider{position:relative;margin:22px 0 0;aspect-ratio:1280/620;border-radius:14px;overflow:hidden;
      border:1px solid rgba(18,65,75,.10);box-shadow:0 10px 26px rgba(14,39,51,.13);background:var(--blue-l)}
.hero-slider img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;border-radius:0;
      opacity:0;transition:opacity .7s ease-in-out}
.hero-slider img:first-child{opacity:1}
.hero-slider img:nth-child(1){animation:hs1 15s infinite}
.hero-slider img:nth-child(2){animation:hs2 15s infinite}
.hero-slider img:nth-child(3){animation:hs3 15s infinite}
@keyframes hs1{0%,30%{opacity:1}36.7%,96.7%{opacity:0}100%{opacity:1}}
@keyframes hs2{0%,30%{opacity:0}36.7%,63.3%{opacity:1}70%,100%{opacity:0}}
@keyframes hs3{0%,63.3%{opacity:0}70%,96.7%{opacity:1}100%{opacity:0}}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.stat{background:#fff;border:1px solid #E3EDF0;border-radius:12px;
      padding:12px 6px;text-align:center;box-shadow:0 3px 10px rgba(14,39,51,.06)}
.stat b{display:block;font-size:20px;color:#0E2A33;font-weight:700;line-height:1.3}
.stat span{font-size:12px;color:#54646D}

/* ===== 区块通用（左对齐分区标题，与资讯区一致） ===== */
section{padding:36px 0}
.sec-head{margin-bottom:20px}
.sec-head .kicker{font-size:12.5px;color:var(--blue);letter-spacing:2px;font-weight:600}
.kicker-light{color:#FFC24B}
.sec-head h1,.sec-head h2{font-size:clamp(19px,4vw,24px);font-weight:700;color:var(--ink);margin-top:4px;letter-spacing:.5px}
.sec-head p{font-size:13.5px;color:var(--ink3);margin-top:6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      overflow:hidden;box-shadow:0 1px 3px rgba(16,42,80,.05)}
.card img{border-radius:0}
.card.pad{padding:18px}
.tint{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ===== 免费体验日（暖色横幅） ===== */
.trial{padding:16px 0 0}
.trial-card{display:flex;align-items:center;gap:12px;flex-wrap:wrap;
      background:linear-gradient(135deg,#FFF6E3 0%,#FDEECE 100%);
      border:1px solid #F3DCA8;border-radius:14px;padding:14px;
      box-shadow:0 6px 16px rgba(184,116,26,.10)}
.trial-card .t-left{flex:1;min-width:220px}
.trial-card .t-left b{display:block;font-size:15.5px;color:#7A4A00;font-weight:700;letter-spacing:.3px}
.trial-card .t-left p{margin-top:5px;font-size:12.5px;line-height:1.6;color:#8A6A33}
.trial-card .t-btn{flex:none;background:#B8741A;color:#fff;font-size:13.5px;font-weight:600;
      padding:10px 16px;border-radius:10px;box-shadow:0 5px 12px rgba(184,116,26,.30)}

/* ===== 职业阶梯 ===== */
.career .path{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:6px}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 8px;text-align:center;
      box-shadow:0 1px 3px rgba(16,42,80,.05)}
.step b{display:block;font-size:13.5px;color:var(--blue-d);line-height:1.45}
.step .money{display:block;font-size:16px;color:var(--amber);font-weight:700;margin-top:6px}
.step span{display:block;font-size:11.5px;color:var(--ink3);margin-top:2px}
.path-note{font-size:12px;color:var(--ink3);margin-top:12px;text-align:center}
@media(min-width:700px){.career .path{grid-template-columns:repeat(4,1fr)}}

/* ===== 三大理由 ===== */
.why-item{display:flex;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line)}
.why-item:last-child{border-bottom:none}
.why-item .no{flex:none;width:30px;height:30px;border-radius:8px;background:var(--blue-l);color:var(--blue);
      font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:2px}
.why-item h3{font-size:15.5px;font-weight:600;color:var(--ink)}
.why-item p{font-size:13.5px;color:var(--ink2);margin-top:4px}

/* ===== 课程节奏 ===== */
.rhythm{display:grid;grid-template-columns:1fr;gap:10px;margin-top:16px}
.rh{background:var(--blue-xl);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:left}
.rh .wk{font-size:12px;color:var(--blue);font-weight:600;letter-spacing:1px}
.rh b{display:block;font-size:16px;color:var(--blue-d);margin-top:4px;font-weight:600}
.rh span{display:block;font-size:12.5px;color:var(--ink3);margin-top:4px;line-height:1.5}
@media(min-width:700px){.rhythm{grid-template-columns:repeat(3,1fr)}.rh{text-align:center}}

/* ===== 大纲 ===== */
.outline{counter-reset:m}
.mod{border-bottom:1px solid var(--line)}
.mod:last-child{border-bottom:none}
.mod summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 16px}
.mod summary::-webkit-details-marker{display:none}
.mod .idx{counter-increment:m;flex:none;width:26px;height:26px;border-radius:50%;background:var(--blue);
      color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center}
.mod .idx::before{content:counter(m)}
.mod summary::after{content:"+";margin-left:auto;color:var(--blue);font-size:19px}
.mod[open] summary::after{content:"−"}
.mod summary b{font-size:15px;font-weight:600;color:var(--ink);flex:1}
.mod summary i{font-style:normal;color:var(--ink3);font-size:12px}
.mod ul{padding:0 16px 14px 54px}
.mod li{font-size:13.5px;color:var(--ink2);margin:4px 0}

/* ===== 实训实景 ===== */
.shots{display:grid;grid-template-columns:1fr;gap:14px}
.shots>div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;
      box-shadow:0 1px 3px rgba(16,42,80,.05)}
.shots img{border-radius:8px;width:100%;aspect-ratio:3/2;object-fit:cover}
.shots .cap{font-size:12.5px;color:var(--ink3);text-align:center;margin-top:8px}
@media(min-width:700px){.shots{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.shots{grid-template-columns:repeat(3,1fr)}}

/* ===== 证书 ===== */
.certs{display:grid;grid-template-columns:1fr;gap:12px}
.cert{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
      box-shadow:0 1px 3px rgba(16,42,80,.05)}
.cert img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0}
.cert .cap{padding:10px 14px}
.cert .cap b{font-size:14px;color:var(--ink);display:block}
.cert .cap span{font-size:12px;color:var(--ink3);display:block;margin-top:2px}
@media(min-width:600px){.certs{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.cert img{aspect-ratio:16/10}}

/* ===== 关于我们 ===== */
.about-p{font-size:14px;color:var(--ink2);margin-bottom:12px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.about-cell{background:var(--blue-xl);border:1px solid var(--line);border-radius:10px;padding:14px}
.about-cell b{display:block;font-size:13px;color:var(--blue);letter-spacing:1px;margin-bottom:4px}
.about-cell p{font-size:13.5px;color:var(--ink2);line-height:1.65}
.biz{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.biz span{font-size:13px;color:var(--blue-d);background:var(--blue-l);border-radius:20px;padding:5px 13px}
@media(min-width:700px){.about-grid{grid-template-columns:repeat(4,1fr)}}

/* ===== 资讯卡片（设计基准区块） ===== */
.posts{display:grid;grid-template-columns:1fr;gap:12px}
.post{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      padding:18px;box-shadow:0 1px 3px rgba(16,42,80,.05);transition:box-shadow .15s,transform .15s}
.post:hover{box-shadow:0 6px 18px rgba(16,42,80,.10);transform:translateY(-2px)}
.post .meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;color:var(--ink3)}
.post .meta .tag{background:var(--blue-l);color:var(--blue);border-radius:20px;padding:2px 10px;font-weight:600}
.post h1,.post h2{font-size:17px;font-weight:700;color:var(--ink);margin:9px 0 6px;line-height:1.5}
.post p{font-size:13.5px;color:var(--ink2);line-height:1.7;
      display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post .more{display:inline-block;margin-top:10px;font-size:13px;color:var(--blue);font-weight:600}
.more-btn{display:inline-block;padding:12px 28px;background:var(--blue);color:#fff;border-radius:10px;
      font-size:15px;font-weight:600;box-shadow:0 5px 12px rgba(18,65,75,.22)}

/* ===== FAQ ===== */
.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;
      box-shadow:0 1px 3px rgba(16,42,80,.05)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;
      padding:14px 16px;font-size:15px;font-weight:600;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-left:auto;color:var(--blue);font-size:19px}
.faq[open] summary::after{content:"−"}
.faq p{padding:0 16px 14px;font-size:13.5px;color:var(--ink2)}
.faq summary a{color:var(--blue-d);font-weight:600}

/* ===== 报名 ===== */
.signup{background:linear-gradient(160deg,var(--hero-b) 0%,var(--hero-c) 100%);color:#fff}
.signup .sec-head h1,.signup .sec-head h2{color:#fff}
.signup .sec-head p{color:rgba(255,255,255,.8)}
.conds{list-style:none}
.conds li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
      border-radius:10px;padding:11px 14px;font-size:14px;margin-bottom:9px}
.conds li b{color:var(--hero-acc);font-weight:600}
.wx-row{display:flex;gap:14px;align-items:center;background:#fff;border-radius:14px;padding:16px;margin-top:6px;flex-wrap:wrap}
.qr{flex:none;width:130px;height:130px;border-radius:10px;overflow:hidden;background:#fff}
.qr img{width:100%;height:100%;object-fit:cover;border-radius:0}
.info b{display:block;font-size:17px;color:var(--ink)}
.info p{font-size:13.5px;color:var(--ink2);margin-top:6px;line-height:1.7}
.tel-link{color:var(--acc-ink)!important;font-weight:700}

/* ===== 页脚 ===== */
footer{background:#0d1b2e;color:#8b98ab;font-size:12.5px;padding:30px 0 24px;line-height:1.9}
footer b{color:#d5dde8;font-weight:600}
footer a{color:#8b98ab}
footer a:hover{color:#c9d9ea}
footer .f-brand{display:inline-flex;align-items:center;gap:8px}
footer .f-brand img{border-radius:50%}
.f-links{display:flex;flex-wrap:wrap;gap:2px 10px;margin:8px 0}
footer .copy{margin-top:14px;color:#5c6879;font-size:11.5px}
footer .beian{margin-top:8px;font-size:11.5px}
footer .beian a{color:#5c6879;text-decoration:none}
footer .beian a:hover{text-decoration:underline}

/* ===== 桌面端右侧悬浮客服（宽屏显示） ===== */
.side-dock{display:none}
@media(min-width:1440px){
  .side-dock{display:flex;flex-direction:column;gap:12px;width:150px;
    position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:55}
  .sd-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 12px 11px;
    text-align:center;box-shadow:0 8px 22px rgba(16,42,80,.10);
    transition:transform .18s ease,box-shadow .18s ease}
  .sd-item:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(16,42,80,.16)}
  .sd-item img{width:122px;height:122px;object-fit:contain;margin:0 auto 8px;border-radius:6px;
    background:#fff;border:1px solid var(--line)}
  .sd-item b{display:block;font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.4}
  .sd-item span{display:block;font-size:11px;color:var(--ink3);line-height:1.5;margin-top:2px}
  .sd-tel{display:block;text-align:center;background:var(--hero-b);color:#fff;
    font-size:12.5px;font-weight:600;border-radius:10px;padding:9px 0;
    box-shadow:0 6px 16px rgba(18,65,75,.25)}
  .sd-tel:hover{filter:brightness(1.1)}
}

/* ===== 底部悬浮条（移动端转化） ===== */
.fixbar{position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);
   display:flex;padding:9px 12px calc(9px + env(safe-area-inset-bottom));gap:10px;
   box-shadow:0 -2px 10px rgba(16,42,80,.06)}
.fixbar a{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:11px 0;
   border-radius:10px;font-size:15px;font-weight:600}
.fixbar .b1{background:var(--hero-b);color:#fff}
.fixbar .b2{background:var(--amber-l);color:var(--amber)}

/* ===== 列表页 / 文章页 ===== */
.listpage,.article{padding:24px 0 40px;min-height:55vh}
.crumb{font-size:12.5px;color:var(--ink3);margin-bottom:14px}
.crumb a{color:var(--ink3)}
.crumb a:hover{color:var(--blue)}
.article-head{margin-bottom:16px}
.article-head h1{font-size:clamp(21px,4.6vw,26px);font-weight:700;line-height:1.45;color:var(--ink);
      letter-spacing:.2px;margin-top:8px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 1px 3px rgba(16,42,80,.05);padding:22px 18px;font-size:15.5px;overflow-wrap:break-word}
.article-body h2{font-size:18px;font-weight:600;color:var(--ink);margin:30px 0 12px;
      padding-left:11px;border-left:4px solid var(--blue);line-height:1.45}
.article-body h3{font-size:15.5px;font-weight:600;color:var(--ink);margin:22px 0 8px}
.article-body p{margin:0 0 13px;line-height:1.9;color:#33383f}
.article-body strong{color:var(--ink);font-weight:600}
.article-body ul,.article-body ol{margin:12px 0 12px 22px}
.article-body li{margin:6px 0;line-height:1.85;color:#33383f}
.article-body img{margin:8px auto}
.art-fig{margin:22px 0 24px}
.art-fig img{width:100%;height:auto;display:block;border-radius:10px;border:1px solid #E3EDF0;background:#f4f7f9}
.art-fig figcaption{font-size:12.5px;color:#8A97A3;margin-top:8px;line-height:1.6;text-align:center}

.article-body table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;
      display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.article-body th{background:#f0f3f7;text-align:left;padding:10px 12px;font-weight:600;
      color:var(--ink2);border:1px solid var(--line)}
.article-body td{padding:10px 12px;border:1px solid var(--line);color:#33383f;vertical-align:top}
.article-body blockquote{background:var(--blue-xl);border-left:4px solid var(--blue);
      border-radius:0 8px 8px 0;padding:14px 18px;margin:16px 0;font-size:15px;color:var(--blue-d);line-height:1.85}
.article-foot{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.btn-wx{display:inline-block;padding:12px 24px;background:var(--green);color:#fff;border-radius:10px;
      font-size:14.5px;font-weight:600}

/* 文末双码转化块 */
.follow{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 1px 3px rgba(16,42,80,.05);padding:20px 18px;margin-top:18px}
.follow h2{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px}
.follow p{font-size:13.5px;color:var(--ink2);line-height:1.8;margin-bottom:14px}
.follow-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.follow-grid.cols3{grid-template-columns:1fr 1fr 1fr}
@media(max-width:640px){
  .follow-grid.cols3{grid-template-columns:1fr 1fr}
  .follow-grid.cols3 .fq{border-right:1px solid var(--line)}
  .follow-grid.cols3 .fq:nth-child(2n){border-right:none}
  .follow-grid.cols3 .fq:nth-child(n+3){border-top:1px solid var(--line)}
}
.fq{padding:16px 12px;text-align:center;border-right:1px solid var(--line)}
.fq:last-child{border-right:none}
.fq img{width:150px;height:150px;object-fit:contain;margin:0 auto 8px;border-radius:6px;border:1px solid var(--line)}
.fq b{display:block;font-size:14.5px;color:var(--green)}
.fq span{display:block;font-size:12px;color:var(--ink3);margin-top:2px}
.follow-notes{list-style:none;margin-top:12px}
.follow-notes li{font-size:12.5px;color:var(--ink2);padding-left:10px;border-left:3px solid var(--green);margin-bottom:6px;line-height:1.7}

/* ===== 404 ===== */
.nf{padding:80px 16px;text-align:center}
.nf h1{font-size:26px;color:var(--ink);margin-bottom:10px}
.nf p{color:var(--ink2);margin-bottom:18px}
.nf .more-btn{margin:0 6px}