/* 页面级共享样式（设计稿 helmet 内联样式的沉淀）+ 响应式 */
[hidden]{display:none !important}
body{margin:0;text-wrap:pretty;font-family:"Lora","Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif}
h1,h2,h3,h4,h5,h6{font-family:"Cormorant Garamond","Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif}
a{color:var(--color-accent)}a:hover{color:var(--color-accent-600)}
.nav a{white-space:nowrap}.btn{white-space:nowrap}.tag{white-space:nowrap}
.table th,.table td{white-space:nowrap}.table td:first-child{white-space:normal}

.site-nav{padding-top:13.8px;padding-bottom:13.8px;padding-inline:max(clamp(20px,5vw,72px),calc((100% - 1200px)/2 + clamp(20px,5vw,72px)));flex-wrap:wrap;row-gap:8px}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,5vw,72px)}
.container-narrow{max-width:760px;margin:0 auto;padding:0 clamp(20px,5vw,72px)}
.hairline{height:1px;border:0;margin:0;background:var(--color-divider)}
.kicker{display:block;font-size:13px;letter-spacing:0.08em;text-transform:uppercase;color:var(--color-accent-700);font-feature-settings:'tnum' 1;margin-bottom:14px}
.tnum{font-feature-settings:'tnum' 1}

/* 布局网格（桌面按设计稿，移动端折叠） */
.grid-hero{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:28px clamp(24px,5vw,96px);align-items:center;padding:84px 0}
.grid-stats{display:grid;grid-template-columns:repeat(4,auto);justify-content:space-between;gap:42px 28px}
.grid-pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:42px 56px}
.pillar{border-right:1px solid var(--color-divider);padding-right:28px}
.pillar:last-child{border-right:0;padding-right:0}
.grid-teaser{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:28px clamp(24px,5vw,96px);align-items:center;padding:70px 0}
.grid-cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-cards2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-blog{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,3fr);gap:28px clamp(28px,5vw,84px);padding:28px 0 70px}
.grid-about{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:42px clamp(28px,5vw,96px);align-items:start;padding:70px 0}
.grid-form2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.row-service{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr) auto;gap:28px;align-items:baseline;padding:20px 0;border-bottom:1px solid var(--color-divider)}
.row-case{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr) auto;gap:28px;align-items:start;padding:28px 0;border-bottom:1px solid var(--color-divider)}
.grid-training{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stats-inline{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:56px;margin-top:42px}

.site-footer{padding:56px 0;font-size:13px;line-height:28px;color:color-mix(in srgb,var(--color-text) 70%,transparent);display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;border-top:1px solid var(--color-divider)}

/* 文章正文（管理后台 Markdown 渲染） */
.article-body{padding:42px 0;font-size:16px;line-height:30px;color:color-mix(in srgb,var(--color-text) 88%,transparent)}
.article-body p{text-align:justify;margin:0 0 28px}
.article-body h2{font-weight:400;font-size:28px;line-height:1.25;margin:36px 0 20px}
.article-body h3{font-weight:400;font-size:22px;margin:28px 0 14px}
.article-body blockquote{margin:0 0 28px;padding:14px 20px;border-left:2px solid var(--color-accent);background:var(--color-neutral-100);font-size:14.5px}
.article-body blockquote p{margin:0;text-align:left}
.article-body ul,.article-body ol{margin:0 0 28px;padding-left:24px}
.article-body img{margin:0 auto 28px}

/* 占位图槽（课程封面/培训照片，正式图片后续在后台替换） */
.img-slot{width:100%;height:100%;min-height:100%;display:grid;place-items:center;background:repeating-linear-gradient(45deg,var(--color-neutral-100),var(--color-neutral-100) 12px,var(--color-neutral-200) 12px,var(--color-neutral-200) 13px)}
.img-slot span{font-family:"Cormorant Garamond","Noto Serif SC",serif;font-size:14px;color:var(--color-neutral-600);background:var(--color-bg);padding:4px 12px;border:1px solid var(--color-divider)}

/* 轻提示 */
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:80;background:var(--color-bg);border:1px solid var(--color-accent);color:var(--color-accent-800);padding:10px 18px;border-radius:var(--radius-md);box-shadow:var(--shadow-md);font-size:14px;max-width:min(520px,90vw);text-align:center}

.form-error{font-size:13px;color:#a33d2e;margin:0;min-height:18px}
.form-ok{font-size:13px;color:var(--color-accent-700);margin:0;min-height:18px}

/* 诊断问卷选项 */
.diag-option{all:unset;box-sizing:border-box;cursor:pointer;display:flex;align-items:center;gap:13.8px;padding:14px 18px;border-radius:var(--radius-md);border:1px solid var(--color-divider);background:transparent;font-size:14.5px;line-height:24px}
.diag-option:hover{border-color:var(--color-accent-300)}
.diag-option:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.diag-option.on{border-color:var(--color-accent);background:var(--color-accent-100)}
.diag-dot{width:18px;height:18px;border-radius:50%;flex-shrink:0;border:1.5px solid var(--color-neutral-400);display:grid;place-items:center}
.diag-option.on .diag-dot{border-color:var(--color-accent)}
.diag-dot i{width:8px;height:8px;border-radius:50%;background:transparent}
.diag-option.on .diag-dot i{background:var(--color-accent)}

/* 管理后台 */
.admin-shell{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:100vh}
.admin-aside{border-right:1px solid var(--color-divider);padding:20px 20px 28px;display:flex;flex-direction:column;gap:28px;position:sticky;top:0;height:100vh;box-sizing:border-box}
.admin-navbtn{all:unset;cursor:pointer;display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:4px;font-size:14px;color:var(--color-text);border-left:2px solid transparent}
.admin-navbtn:focus-visible{outline:2px solid var(--color-accent)}
.admin-navbtn.on{color:var(--color-accent);border-left-color:var(--color-accent)}
.admin-navbtn small{font-size:10px;letter-spacing:0.1em;color:var(--color-neutral-500)}
.grid-cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.bar-row{display:grid;grid-template-columns:110px 1fr 48px;gap:13.8px;align-items:center}
.funnel-row{display:grid;grid-template-columns:120px 1fr 110px;gap:13.8px;align-items:center}

@media (max-width:920px){
  .grid-hero{grid-template-columns:1fr;padding:56px 0}
  .grid-hero figure{justify-self:center !important}
  .grid-stats{grid-template-columns:repeat(2,1fr)}
  .grid-pillars{grid-template-columns:1fr}
  .pillar{border-right:0;padding-right:0;border-bottom:1px solid var(--color-divider);padding-bottom:28px}
  .pillar:last-child{border-bottom:0;padding-bottom:0}
  .grid-teaser{grid-template-columns:1fr}
  .grid-cards3,.grid-cards2,.grid-cards4{grid-template-columns:1fr}
  .grid-blog{grid-template-columns:1fr}
  .grid-about{grid-template-columns:1fr}
  .row-service{grid-template-columns:1fr;gap:10px}
  .row-case{grid-template-columns:1fr;gap:12px}
  .grid-training{grid-template-columns:1fr}
  .stats-inline{grid-template-columns:repeat(2,auto);gap:28px}
  .grid-form2{grid-template-columns:1fr}
  .admin-shell{grid-template-columns:1fr}
  .admin-aside{position:static;height:auto;border-right:0;border-bottom:1px solid var(--color-divider)}
}

/* ===== v2.0 企业站首页（DemoWall/DESIGN.md · 配色 B 暖纸）：只用 ds.css 已有变量，不新增颜色 ===== */
.v2-muted{color:color-mix(in srgb,var(--color-text) 66%,transparent)}
.v2-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px clamp(24px,5vw,72px);align-items:center;padding:56px 0 72px;min-height:calc(100dvh - 80px)}
.v2-eyebrow{font-size:14px;letter-spacing:.06em;color:var(--color-accent-700);margin:0 0 16px}
.v2-h1{font-weight:400;font-size:clamp(34px,4.6vw,64px);line-height:1.14;letter-spacing:-.01em;margin:0}
.v2-h1 span{white-space:nowrap}
.v2-lead{font-size:17px;line-height:30px;max-width:34em;margin:22px 0 0;color:color-mix(in srgb,var(--color-text) 80%,transparent)}
.v2-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.v2-cta .btn{text-decoration:none}
.v2-cta .btn-solid{background:var(--color-accent);border-color:var(--color-accent);color:#fff}
.v2-cta .btn-solid:hover{filter:brightness(1.06);background:var(--color-accent)}
.v2-figure{position:relative;margin:0;justify-self:end;width:min(500px,100%)}
.v2-figure::before{content:"";position:absolute;inset:8% 0 0;background:radial-gradient(closest-side,color-mix(in srgb,var(--color-accent) 18%,transparent),transparent 75%)}
.v2-figure img{position:relative;width:100%;height:auto;mix-blend-mode:multiply;filter:sepia(.12) saturate(.9);
  -webkit-mask-image:radial-gradient(90% 75% at 50% 40%,#000 45%,rgba(0,0,0,.6) 66%,transparent 86%);mask-image:radial-gradient(90% 75% at 50% 40%,#000 45%,rgba(0,0,0,.6) 66%,transparent 86%)}
.v2-live{position:absolute;left:0;bottom:8%;max-width:330px;background:color-mix(in srgb,var(--color-bg) 94%,#fff);border:1px solid var(--color-divider);border-radius:var(--radius-md);padding:12px 16px;font-size:14px;line-height:22px}
.v2-live i{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--color-accent);margin-right:8px}
.v2-live small{display:block;font-size:12.5px;margin-top:2px;color:color-mix(in srgb,var(--color-text) 62%,transparent)}
.v2-trust{display:flex;flex-wrap:wrap;gap:14px 44px;padding:28px 0}
.v2-trust div{font-size:13.5px;color:color-mix(in srgb,var(--color-text) 66%,transparent)}
.v2-trust b{display:block;font-family:'Noto Serif SC',serif;font-weight:600;font-size:20px;color:var(--color-text)}
.v2-sec{padding:72px 0}
.v2-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.v2-head h2{font-weight:400;font-size:clamp(26px,3vw,40px);line-height:1.2;margin:0}
.v2-head p{max-width:32em;margin:0;font-size:15px;line-height:26px}
.v2-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:22px;scrollbar-width:none}
.v2-chip{flex:none;height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--color-divider);background:none;color:inherit;font:inherit;font-size:14px;cursor:pointer}
.v2-chip.on{border-color:var(--color-accent);color:var(--color-accent-700)}
.v2-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.v2-card{display:flex;flex-direction:column;gap:10px;padding:24px;border:1px solid var(--color-divider);border-radius:var(--radius-md);background:color-mix(in srgb,var(--color-bg) 70%,#fff);color:inherit;text-decoration:none;min-height:210px;transition:border-color .15s,background .15s}
.v2-card:hover{border-color:color-mix(in srgb,var(--color-text) 30%,transparent);background:#fff}
.v2-card.wide{grid-column:span 2}
.v2-card .tag-line{font-size:13px;color:color-mix(in srgb,var(--color-text) 60%,transparent)}
.v2-card h3{font-weight:600;font-size:19px;line-height:1.45;margin:0}
.v2-card p{margin:0;font-size:14.5px;line-height:24px;color:color-mix(in srgb,var(--color-text) 72%,transparent);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.v2-card .foot{margin-top:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12.5px}
.v2-badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;border:1px solid var(--color-accent);color:var(--color-accent-700);font-size:12px}
.v2-badge.plain{border-color:var(--color-divider);color:color-mix(in srgb,var(--color-text) 60%,transparent)}
.v2-prod{padding:0;overflow:hidden}
.v2-prod .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px}
.v2-steps{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--color-divider);border-radius:var(--radius-md);overflow:hidden}
.v2-step{padding:24px;border-right:1px solid var(--color-divider)}
.v2-step:last-child{border-right:0}
.v2-step .n{font-family:'Cormorant Garamond',serif;font-size:22px;color:var(--color-accent)}
.v2-step h3{font-weight:600;font-size:18px;margin:6px 0 8px}
.v2-step p{margin:0;font-size:14.5px;line-height:24px}
.v2-rows{border-top:1px solid var(--color-divider)}
.v2-row{display:grid;grid-template-columns:220px minmax(0,1fr) auto;gap:24px;padding:22px 0;border-bottom:1px solid var(--color-divider);align-items:baseline}
.v2-row h3{font-weight:600;font-size:18px;margin:0}
.v2-row p{margin:0;font-size:15px;line-height:26px}
.v2-photos{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.v2-photos figure{margin:0}
.v2-photos figure:first-child{grid-column:span 2;grid-row:span 2}
.v2-photos img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-md);border:1px solid var(--color-divider)}
.v2-photos figure:first-child img{aspect-ratio:auto;height:calc(100% - 28px)}
.v2-photos figcaption{font-size:12.5px;margin-top:6px;color:color-mix(in srgb,var(--color-text) 60%,transparent)}
.v2-pledge{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--color-divider);border:1px solid var(--color-divider);border-radius:var(--radius-md);overflow:hidden}
.v2-pledge div{background:var(--color-bg);padding:26px}
.v2-pledge h3{font-weight:600;font-size:17px;margin:0 0 8px}
.v2-pledge p{margin:0;font-size:14.5px;line-height:24px}
.v2-split{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:center}
.v2-qr{width:160px;border:1px solid var(--color-divider);border-radius:var(--radius-md)}
.v2-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.v2-reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.v2-reveal{opacity:1;transform:none;transition:none}}
@media (max-width:1024px){.v2-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v2-steps{grid-template-columns:repeat(2,1fr)}.v2-step:nth-child(2){border-right:0}.v2-step:nth-child(-n+2){border-bottom:1px solid var(--color-divider)}}
@media (max-width:768px){
  .v2-hero{grid-template-columns:1fr;min-height:auto;padding:28px 0 44px}
  .v2-figure{justify-self:center;width:min(360px,100%)}
  .v2-live{left:8px;right:8px;max-width:none}
  .v2-cta .btn{flex:1 1 100%;justify-content:center}
  .v2-sec{padding:48px 0}
  .v2-grid,.v2-pledge,.v2-split{grid-template-columns:1fr}.v2-card.wide{grid-column:auto}
  .v2-steps{grid-template-columns:1fr}.v2-step{border-right:0;border-bottom:1px solid var(--color-divider)}
  .v2-row{grid-template-columns:1fr;gap:6px}
  .v2-photos{grid-template-columns:repeat(2,1fr)}
}
/* v2.0 导航：桌面端 .nav-links 不占布局（display:contents）；手机端折叠成「菜单」按钮 */
.nav-links{display:contents}
.nav-menu-btn{display:none;height:36px;padding:0 12px;border:1px solid var(--color-divider);border-radius:var(--radius-md);background:none;color:inherit;font:inherit;font-size:14px;cursor:pointer}
@media (max-width:768px){
  .site-nav{flex-wrap:wrap}
  .site-nav .nav-links{display:none;order:9;width:100%;flex-direction:column;gap:14px;padding:12px 0 4px;border-top:1px solid var(--color-divider)}
  .site-nav.open .nav-links{display:flex}
  .nav-menu-btn{display:inline-flex;align-items:center;margin-left:auto}
  .site-nav > .btn-primary{display:none}
}
/* v2.0 案例详情 */
.v2-case{max-width:780px}
.v2-case h2{font-weight:600;font-size:22px;margin:44px 0 12px}
.v2-case p,.v2-case li{font-size:16px;line-height:30px;color:color-mix(in srgb,var(--color-text) 86%,transparent)}
.v2-case ul{padding-left:20px;margin:0}
.v2-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;padding:20px 0;margin-top:28px;border-top:1px solid var(--color-divider);border-bottom:1px solid var(--color-divider);font-size:14px}
.v2-meta > div > span:first-child{display:block;font-size:12px;color:color-mix(in srgb,var(--color-text) 55%,transparent)}
.v2-meta p{margin:0;font-size:14px;line-height:22px}
.v2-src{font-size:12px;color:color-mix(in srgb,var(--color-text) 45%,transparent);margin:0 2px}
.v2-src::before{content:"〔"}.v2-src::after{content:"〕"}
.v2-todo{display:inline-flex;align-items:center;height:20px;padding:0 7px;border-radius:999px;border:1px dashed color-mix(in srgb,var(--color-text) 40%,transparent);color:color-mix(in srgb,var(--color-text) 55%,transparent);font-size:12px;vertical-align:2px;margin-right:4px}
@media (max-width:1024px){.site-nav > .btn-primary{display:none}} /* 中等宽度导航保持单行：首屏已有同一个按钮 */
/* v2.1 行业案例库筛选条 */
.v2-filter{display:grid;grid-template-columns:minmax(0,2fr) repeat(3,minmax(0,1fr)) auto;gap:10px;align-items:center;margin-bottom:16px}
@media (max-width:1024px){.v2-filter{grid-template-columns:1fr 1fr}.v2-filter #q{grid-column:1/-1}}
/* v2.2 在线可试卡：缩略图（16:10）+ 正文 */
.v2-prod img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;border-bottom:1px solid var(--color-divider);display:block}
.v2-prod .body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;flex:1}
.v2-privacy table{width:100%;border-collapse:collapse;font-size:14.5px;margin:0 0 28px}.v2-privacy th,.v2-privacy td{border-bottom:1px solid var(--color-divider);padding:10px 8px;text-align:left;vertical-align:top}
/* v2.3 交付物演示展示卡：左图右文 */
.v2-showcase{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:0;margin-top:20px;border:1px solid var(--color-divider);border-radius:var(--radius-md);overflow:hidden;color:inherit;text-decoration:none;background:color-mix(in srgb,var(--color-bg) 70%,#fff);transition:border-color .15s}
.v2-showcase:hover{border-color:var(--color-accent)}
.v2-showcase img{width:100%;height:100%;min-height:220px;object-fit:cover;object-position:top;border-right:1px solid var(--color-divider)}
.v2-showcase .body{display:flex;flex-direction:column;gap:10px;justify-content:center;padding:28px}
.v2-showcase h3{font-weight:600;font-size:21px;margin:0}.v2-showcase p{margin:0;font-size:15px;line-height:26px}
.v2-showcase .v2-badge{align-self:flex-start}
@media (max-width:768px){.v2-showcase{grid-template-columns:1fr}.v2-showcase img{border-right:0;border-bottom:1px solid var(--color-divider);min-height:0;aspect-ratio:16/10}}