/* 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:var(--font-body)}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading)}
a{color:var(--color-accent)}a:hover{color:var(--color-accent-400)}
.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}

/* —— 全站页头（sticky，滚动 >80px 收缩 72→60，DESIGN.md §5/§9）—— */
.site-header{position:sticky;top:0;z-index:50;background:var(--color-surface);border-bottom:1px solid var(--color-divider)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px);display:flex;align-items:center;gap:26px;height:72px;transition:height .16s ease}
.site-header.shrunk .header-inner{height:60px}
.site-header.shrunk{box-shadow:var(--shadow-sm)}
.brand{display:flex;align-items:center}
.brand-logo{height:48px;width:auto;transition:height .16s ease}
.site-header.shrunk .brand-logo{height:40px}
.main-nav{display:flex;gap:20px;margin-left:auto}
.main-nav a{font-size:14.5px;color:var(--color-text);white-space:nowrap;padding:6px 0;border-bottom:2px solid transparent}
.main-nav a:hover{color:var(--color-accent);text-decoration:none}
.main-nav a[aria-current='page']{color:var(--color-accent);border-bottom-color:var(--color-accent)}
.header-actions{display:flex;align-items:center;gap:14px}
.btn-area{padding:8px 14px;font-size:13.5px;white-space:nowrap}
.lang-switch{font-size:12.5px;display:inline-flex;gap:6px;color:var(--color-neutral-500)}
.lang-switch b{color:var(--color-text)}
.lang-switch a{color:var(--color-neutral-500);position:relative}
/* 隐形热区：视觉不变，触控面积 ≥44px（DESIGN.md §10） */
.lang-switch a::after{content:'';position:absolute;left:-8px;right:-8px;top:-14px;bottom:-14px}
.lang-switch a:hover{color:var(--color-accent);text-decoration:none}
.hdr-mini{font-size:13px;white-space:nowrap}
.burger{display:none}
.nav-drawer{display:none}
@media (max-width:980px){
  .main-nav,.btn-area,.hdr-mini{display:none}
  .burger{display:grid;place-items:center;width:44px;height:44px;background:none;border:0;cursor:pointer;color:var(--color-text)}
  .nav-drawer{display:flex;flex-direction:column;gap:2px;padding:10px 20px 22px;background:var(--color-surface);border-bottom:1px solid var(--color-divider)}
  .nav-drawer[hidden]{display:none}
  .nav-drawer a{padding:11px 4px;font-size:16px;color:var(--color-text);border-bottom:1px solid var(--color-neutral-100)}
  .nav-drawer a[aria-current='page']{color:var(--color-accent)}
  .drawer-lang{padding-top:12px;font-size:14px;color:var(--color-neutral-500)}
}

/* —— 页脚（墨青深带，DESIGN.md §6 区块10）—— */
.footer{padding:56px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:32px;padding-bottom:34px}
.footer-brand{font-family:var(--font-heading);font-weight:700;font-size:20px;color:#fff;letter-spacing:.02em}
.footer-tagline{margin:10px 0 0;font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.62);max-width:300px}
.footer-h{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:rgba(255,255,255,.5);margin-bottom:10px}
.footer .footer-grid a{display:block;padding:4px 0;font-size:14px;color:rgba(255,255,255,.78)}
.footer .footer-grid a:hover{color:#fff;text-decoration:none}
.footer-legal{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:12.5px;color:rgba(255,255,255,.5)}
.footer .footer-legal a{color:rgba(255,255,255,.6)}
@media (max-width:920px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.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);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}


/* —— 首页区块（DESIGN.md §6 十区）—— */
.sect{padding:clamp(56px,8vw,92px) 0}
.sect-slim{padding:clamp(40px,5vw,60px) 0}
.sect-head{text-align:center;margin-bottom:clamp(28px,4vw,44px)}
.sect-head h2{margin:0}
.hero-sect{padding:clamp(48px,7vw,84px) 0;background:var(--color-bg)}
.grid-hero2{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px);display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px clamp(28px,5vw,72px);align-items:center}
.hero-h1{font-size:clamp(36px,4.4vw,58px);line-height:1.08;margin:14px 0 16px}
.hero-sub{font-size:17px;line-height:1.65;max-width:56ch;margin:0 0 26px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero-chips{list-style:none;display:flex;gap:8px 22px;flex-wrap:wrap;padding:0;margin:24px 0 0;font-size:13.5px;color:var(--color-neutral-600)}
.hero-chips li::before{content:'✓';color:var(--color-accent);font-weight:700;margin-right:7px}
.hero-visual{background:linear-gradient(135deg,var(--color-accent-100),#DCE9F7);border-radius:var(--radius-lg);min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:var(--color-accent);position:relative;overflow:hidden}
.hero-visual::after{content:'';position:absolute;right:-44px;bottom:-44px;width:190px;height:190px;border:2px solid var(--color-accent-300);border-radius:26px;transform:rotate(12deg);opacity:.55}
.hero-visual span{font-size:12.5px;color:var(--color-accent-400);position:relative}
.card-ico{width:30px;height:30px;color:var(--color-accent);margin-bottom:2px}
.card-link{font-size:14px;font-weight:600}
.prod-card{padding:0;display:grid;grid-template-columns:5fr 6fr;overflow:hidden}
.prod-card .img-slot{min-height:220px}
.prod-txt{padding:26px 26px 24px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.why-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:44px;align-items:center}
.stats-row{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 28px}
.stat-v{display:block;font-family:var(--font-heading);font-weight:700;font-size:clamp(34px,3.6vw,48px);line-height:1.1;color:#fff;font-feature-settings:'tnum' 1}
.stat-l{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.68)}
.strip{display:flex;align-items:center;justify-content:space-between;gap:20px 28px;flex-wrap:wrap}
.case-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.case-card .img-slot{aspect-ratio:4/3;min-height:0}
.case-txt{padding:18px 20px 20px;display:flex;flex-direction:column;align-items:flex-start}
.inst-links{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.inst-links a{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1.5px solid rgba(255,255,255,.38);border-radius:var(--radius-md);padding:16px 18px;color:#fff;font-weight:600;font-size:15px}
.inst-links a:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.inst-links a.inst-cta{background:var(--color-cta);border-color:var(--color-cta)}
.inst-links a.inst-cta:hover{background:var(--color-cta-600);border-color:var(--color-cta-600)}
.ai-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:32px clamp(32px,4vw,64px);align-items:start}
.faq-item{border:1px solid var(--color-divider);border-radius:var(--radius-lg);background:var(--color-surface);margin-bottom:10px}
.faq-item summary{cursor:pointer;font-weight:600;font-size:15px;color:var(--color-text);padding:14px 18px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--color-accent);font-weight:700;flex-shrink:0}
.faq-item[open] summary::after{content:'−'}
.faq-item p{padding:0 18px 15px;margin:0;font-size:14.5px;line-height:1.6}

/* —— 子页通用：页首 + 分类图文 + 品牌占位 —— */
.page-hero{padding:clamp(44px,6vw,72px) 0 clamp(28px,4vw,44px);background:var(--color-bg)}
.page-h1{font-size:clamp(30px,3.6vw,46px);line-height:1.12;margin:10px 0 14px;max-width:24ch}
.page-sub{font-size:16.5px;line-height:1.65;max-width:62ch;margin:0}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.pill{display:inline-block;padding:8px 16px;border:1px solid var(--color-divider);border-radius:999px;font-size:13.5px;font-weight:600;color:var(--color-text);background:var(--color-surface)}
.pill:hover{border-color:var(--color-accent);color:var(--color-accent);text-decoration:none}
.pill-on{border-color:var(--color-accent);background:var(--color-accent);color:#fff}
.pill-on:hover{color:#fff}
.cat-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:32px clamp(32px,4vw,64px);align-items:center}
.cat-grid h2{margin:0 0 12px}
.cat-visual .img-slot{aspect-ratio:4/3;min-height:0;border-radius:var(--radius-lg);overflow:hidden}
.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:9px}
.check-list li{padding-left:26px;position:relative;font-size:15px;line-height:1.55}
.check-list li::before{content:'✓';position:absolute;left:0;top:0;color:var(--color-accent);font-weight:700}
.brand-row{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.brand-box{height:64px;display:grid;place-items:center;background:var(--color-surface);border:1px solid var(--color-divider);border-radius:var(--radius-md);color:var(--color-neutral-400);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase}
.btn-on-dark{border-color:rgba(255,255,255,.65);color:#fff}
.btn-on-dark:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
/* Chi siamo：浅底数字（stats-row 深带配色的墨青版） */
.stats-ink .stat-v{color:var(--color-ink,#1F2933)}
.stats-ink .stat-l{color:var(--color-neutral-600)}
/* Referenze：案例行 */
.ref-row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:24px clamp(28px,4vw,56px);align-items:center;padding:26px 0;border-bottom:1px solid var(--color-divider)}
.ref-row:last-of-type{border-bottom:0}
.ref-img{aspect-ratio:4/3;min-height:0;border-radius:var(--radius-lg);overflow:hidden}
/* Documentazione：文件占位条 */
.doc-bars{display:grid;gap:8px;margin:6px 0 14px}
.doc-bars i{height:12px;border-radius:4px;background:var(--color-neutral-100)}
.doc-bars i:nth-child(2){width:82%}
.doc-bars i:nth-child(3){width:64%}
@media (max-width:920px){.ref-row{grid-template-columns:1fr}}

/* —— 移动端速联条（T2.9；桌面隐藏）—— */
.speed-dial{display:none}
@media (max-width:760px){
  .speed-dial{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;background:var(--color-surface);border-top:1px solid var(--color-divider);box-shadow:0 -2px 12px rgba(31,41,51,.08);padding-bottom:env(safe-area-inset-bottom)}
  .speed-dial a,.speed-dial button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px 8px;font-size:11.5px;font-weight:600;color:var(--color-text);background:none;border:0;border-right:1px solid var(--color-neutral-100);cursor:pointer;text-decoration:none;font-family:var(--font-body)}
  .speed-dial a:last-child,.speed-dial button:last-child{border-right:0}
  .speed-dial .sd-ico{font-size:17px;line-height:1;color:var(--color-accent)}
  .speed-dial a:active,.speed-dial button:active{background:var(--color-accent-100)}
  /* 悬浮助手气泡抬升，避让速联条 */
  #assistant-fab{bottom:calc(64px + env(safe-area-inset-bottom)) !important}
  .toast{bottom:calc(120px + env(safe-area-inset-bottom))}
  /* CMP 横幅抬到速联条之上（横幅内联 bottom:16px，需 !important；表态即散，短暂盖 fab 可接受） */
  #cookie-banner{bottom:calc(72px + env(safe-area-inset-bottom)) !important}
  body{padding-bottom:56px}
}
@media (max-width:920px){
  .cat-grid{grid-template-columns:1fr}
  .cat-flip .cat-visual{order:2}
  .brand-row{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:560px){.brand-row{grid-template-columns:repeat(2,1fr)}}

/* AI 助手气泡：页面加载 2s 后弹入一次（§9），hover 微浮 */
#assistant-fab{opacity:0;transform:translateY(16px) scale(.9);animation:fab-in .5s cubic-bezier(.34,1.4,.64,1) 2s forwards;transition:transform .18s ease,box-shadow .18s ease}
#assistant-fab:hover{transform:translateY(-2px)}
@keyframes fab-in{to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){#assistant-fab{opacity:1;transform:none;animation:none}}

/* 入场动效：420ms 一次性上浮（§9 少量点缀档；reduced-motion 直接显示） */
.fade-up{opacity:0;transform:translateY(14px);transition:opacity .42s ease-out,transform .42s ease-out}
.fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.fade-up{opacity:1;transform:none;transition:none}}
@media (max-width:920px){
  .grid-hero2{grid-template-columns:1fr}
  .hero-visual{min-height:230px}
  .why-grid,.ai-grid{grid-template-columns:1fr}
  .prod-card{grid-template-columns:1fr}
  .prod-card .img-slot{min-height:180px}
  .inst-links{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){.inst-links{grid-template-columns:1fr}.stats-row{gap:24px 18px}}

/* 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:var(--font-body);font-size:13px;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)}
}