/* 米核 mihe.group — 品牌介绍页样式
   纯静态，无外部依赖；配色取自米核 Logo（深蓝 #1f3767 / 亮蓝 #4785c0 / 浅蓝 #8bd4f5） */
:root{
  --navy:#0f2745;
  --navy-2:#163a68;
  --blue:#2b6fd6;
  --blue-bright:#3b8ae0;
  --sky:#8bd4f5;
  --ink:#11243c;
  --body:#465a73;
  --muted:#7286a0;
  --line:#e0e9f4;
  --bg:#f6f9fd;
  --white:#fff;
  --shadow:0 18px 50px -24px rgba(16,52,100,.32);
  --shadow-sm:0 8px 24px -14px rgba(16,52,100,.28);
  --radius:20px;
  --max:1180px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.72;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
:focus-visible{outline:3px solid var(--blue-bright);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:#fff;color:var(--navy);padding:12px 20px;border-radius:0 0 10px 0;font-weight:700}
.skip-link:focus{left:0}
.wrap{width:min(100% - 48px,var(--max));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:700;letter-spacing:.2px;border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:16px;height:16px;flex:none;transition:transform .22s ease}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:linear-gradient(115deg,#3b8ae0,#2b6fd6);color:#fff;box-shadow:0 12px 26px -12px rgba(43,111,214,.8)}
.btn-primary:hover{box-shadow:0 16px 32px -12px rgba(43,111,214,.9)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5)}
.btn-outline{background:#fff;color:var(--blue);border-color:#cfe0f6}
.btn-outline:hover{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.btn-sm{min-height:40px;padding:0 16px;font-size:13.5px;border-radius:10px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.86);backdrop-filter:saturate(160%) blur(16px);border-bottom:1px solid rgba(224,233,244,.9);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 8px 30px -20px rgba(15,39,69,.55)}
.nav{height:72px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{width:42px;height:42px;flex:none;border-radius:11px;overflow:hidden;background:#1a3459;box-shadow:0 6px 16px -8px rgba(43,111,214,.9)}
.brand-mark img{width:100%;height:100%;object-fit:cover;border-radius:inherit}
.brand-text strong{display:block;font-size:19px;line-height:1.1;letter-spacing:2px;color:var(--navy)}
.brand-text small{display:block;font-size:10px;letter-spacing:2.2px;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{font-size:14.5px;color:#425872;font-weight:600;position:relative;padding:6px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:right .25s ease}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-cta{flex:none}
.nav-links .nav-cta{display:none}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{width:18px;height:2px;background:var(--navy);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(125deg,#0d2340 0%,#163a68 52%,#1f4f8b 100%);color:#fff;padding:88px 0 78px;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(110deg,#000 10%,transparent 78%)}
.hero::after{content:"";position:absolute;z-index:-1;top:-340px;right:-180px;width:820px;height:820px;border-radius:50%;background:radial-gradient(circle,rgba(90,170,245,.42),rgba(90,170,245,0) 66%);filter:blur(20px)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:2.4px;font-weight:700;color:#a9d6ff;text-transform:uppercase;margin-bottom:24px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--sky);border-radius:2px}
.hero h1{font-size:clamp(38px,4.4vw,62px);line-height:1.18;letter-spacing:-1px;font-weight:800;margin-bottom:22px}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#8bd4f5,#e8f6ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;line-height:1.9;color:#cfdff2;max-width:600px}
.hero-lead strong{color:#fff;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:18px;font-size:13px;color:#93b4d8;display:flex;align-items:center;gap:8px}
.hero-note svg{width:15px;height:15px;flex:none}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-tags span{font-size:12.5px;color:#b9d4ef;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);padding:6px 13px;border-radius:99px}
.hero-visual{position:relative;display:flex;justify-content:center}
.logo-card{position:relative;width:min(100%,420px);border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.28);box-shadow:0 40px 90px -30px rgba(0,0,0,.65);background:#1a3459;transform:rotate(1.2deg)}
.logo-card img{width:100%;height:auto;aspect-ratio:1;object-fit:cover}
.logo-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12px;letter-spacing:1.6px;color:#dbeaff;background:linear-gradient(transparent,rgba(8,24,45,.82));text-align:center}
.float-chip{position:absolute;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.95);color:var(--navy);border-radius:14px;padding:12px 16px;box-shadow:0 18px 40px -18px rgba(0,0,0,.6);font-size:13px;font-weight:700;animation:float 5s ease-in-out infinite}
.float-chip i{width:9px;height:9px;border-radius:50%;background:#38b37c;box-shadow:0 0 0 4px rgba(56,179,124,.16)}
.float-chip.a{top:8%;left:-6%}
.float-chip.b{bottom:12%;right:-7%;animation-delay:-2.4s}
.float-chip small{display:block;font-size:11px;font-weight:500;color:#71849b}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 通用区块 ---------- */
.section{padding:92px 0}
.section-soft{background:#fff;border-block:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-inline:auto;text-align:center}
.kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:2.4px;color:var(--blue);text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.32;letter-spacing:-.6px;font-weight:800;color:var(--navy)}
.section-head p{margin-top:16px;font-size:16px;color:var(--body);line-height:1.9}
.section-actions{margin-top:32px}

/* ---------- 关于米核 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.about-def{border-left:3px solid var(--blue);padding-left:26px}
.about-def dt{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--blue);margin-bottom:10px}
.about-def dd{font-size:17.5px;line-height:1.95;color:var(--ink);font-weight:600}
.about-def dd + dt{margin-top:28px}
.about-def dd span{color:var(--blue);font-weight:800}
.about-points{display:grid;gap:14px}
.about-point{display:flex;gap:16px;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px 22px;transition:transform .2s,border-color .2s}
.about-point:hover{transform:translateX(4px);border-color:#bcd6f5}
.about-point .num{font-size:13px;font-weight:800;color:var(--blue);background:#e7f1ff;border-radius:9px;padding:4px 10px;height:fit-content;flex:none}
.about-point h3{font-size:16px;margin-bottom:5px;color:var(--navy)}
.about-point p{font-size:14.5px;color:var(--body)}

/* ---------- 能力卡片 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cap-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px 26px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative;overflow:hidden}
.cap-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--sky));transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.cap-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c9def7}
.cap-card:hover::before{transform:scaleX(1)}
.cap-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.cap-icon{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(140deg,#eaf4ff,#d9ebff);color:var(--blue)}
.cap-icon svg{width:26px;height:26px}
.cap-no{font-size:12px;font-weight:800;letter-spacing:1.6px;color:#b3c4d8}
.cap-card h3{font-size:20px;font-weight:800;color:var(--navy);margin-bottom:10px}
.cap-card > p{font-size:14.5px;color:var(--body);line-height:1.85;min-height:80px}
.cap-list{margin:18px 0 26px;display:flex;flex-wrap:wrap;gap:8px}
.cap-list li{font-size:12.5px;color:#3c5b80;background:#f0f6fd;border:1px solid #e0ecfa;padding:5px 10px;border-radius:8px}
.cap-card .btn{margin-top:auto;align-self:flex-start}

/* ---------- 案例实景 ---------- */
.showcase{background:linear-gradient(180deg,#0f2745,#163b6b);color:#fff;position:relative;overflow:hidden}
.showcase::before{content:"";position:absolute;top:-200px;left:-160px;width:600px;height:600px;background:radial-gradient(circle,rgba(80,160,240,.28),transparent 65%);pointer-events:none}
.showcase .section-head h2{color:#fff}
.showcase .section-head p{color:#bdd3ec}
.showcase .kicker{color:var(--sky)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;overflow:hidden;transition:transform .25s,border-color .25s,background .25s}
.case:hover{transform:translateY(-4px);border-color:rgba(139,212,245,.6);background:rgba(255,255,255,.1)}
.case img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#1b3c68}
.case div{padding:15px 18px 18px}
.case h3{font-size:15.5px;font-weight:700}
.case p{font-size:13px;color:#a9c4e2;margin-top:5px}
.showcase-actions{margin-top:36px;display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.showcase-actions small{color:#8fb0d4;font-size:12.5px}

/* ---------- 适用对象 ---------- */
.aud-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.aud-card{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:26px 22px;display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}
.aud-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.aud-card .tag{font-size:11.5px;font-weight:800;letter-spacing:1.4px;color:var(--blue);background:#e6f1ff;padding:4px 10px;border-radius:7px;align-self:flex-start}
.aud-card h3{font-size:18px;margin:18px 0 8px;color:var(--navy)}
.aud-card p{font-size:14px;color:var(--body);flex:1}
.aud-card .btn{margin-top:22px}

/* ---------- 落地路径 ---------- */
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.step{padding:34px 30px;position:relative;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step .step-no{font-size:44px;font-weight:800;line-height:1;color:#dceafb;letter-spacing:-2px}
.step h3{font-size:20px;margin:14px 0 10px;color:var(--navy)}
.step p{font-size:14.5px;color:var(--body)}
.step ul{margin-top:18px;display:grid;gap:9px}
.step li{font-size:13.5px;color:#405974;padding-left:18px;position:relative}
.step li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--blue-bright)}
.path-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:30px;flex-wrap:wrap}
.path-foot p{font-size:14.5px;color:var(--body)}

/* ---------- FAQ · 聊天气泡（一行两句：问一句 + 答一句） ---------- */
.faq-wrap{display:block}
.faq-list{display:grid;gap:14px}
.faq-item{background:transparent;border:0;border-radius:0}
.faq-item summary{list-style:none;display:grid;grid-template-columns:1fr 1.08fr;gap:18px;align-items:stretch;padding:0;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{display:none}
.bubble{position:relative;display:flex;align-items:center;gap:12px;min-height:62px;padding:12px 18px;border-radius:18px;font-size:14.5px;line-height:1.65;transition:transform .22s ease,box-shadow .22s ease}
.faq-item:hover .bubble{transform:translateY(-2px)}
.bubble b{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:800}
.bubble-q{background:#fff;border:1px solid var(--line);color:var(--navy);font-weight:700;border-bottom-left-radius:6px;box-shadow:var(--shadow-sm)}
.bubble-q b{background:#e7f1ff;color:var(--blue)}
.bubble-q::after{content:"";position:absolute;left:-6px;bottom:9px;width:12px;height:12px;background:#fff;border-left:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg);border-radius:0 0 0 3px}
.bubble-a{background:linear-gradient(120deg,#2b6fd6,#3b8ae0);color:#fff;font-weight:600;border-bottom-right-radius:6px;box-shadow:0 12px 26px -16px rgba(43,111,214,.95)}
.bubble-a b{background:rgba(255,255,255,.22);color:#fff}
.bubble-a::after{content:"";position:absolute;right:-6px;bottom:9px;width:12px;height:12px;background:#3481dd;transform:rotate(45deg);border-radius:0 3px 0 0}
.faq-item[open] .bubble-q{border-color:#bfd8f6}
.faq-item .a{margin:10px 0 2px;padding:14px 20px;background:#eef5ff;border:1px solid #dbeafb;border-radius:12px;font-size:13.5px;color:#4a6382;line-height:1.9}
.faq-item .a a{color:var(--blue);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.faq-aside{margin-top:28px;display:flex;align-items:center;justify-content:space-between;gap:28px;background:linear-gradient(150deg,#eef5ff,#e2efff);border:1px solid #d3e5fb;border-radius:var(--radius);padding:26px 30px}
.faq-aside h3{font-size:19px;color:var(--navy);margin-bottom:6px}
.faq-aside p{font-size:14px;color:#4a6382;margin:0}
.faq-aside .btn{flex:none}

/* ---------- 结尾 CTA ---------- */
.final{position:relative;overflow:hidden;background:linear-gradient(115deg,#12325a,#215a9c);color:#fff;text-align:center;padding:84px 0}
.final::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse at center,#000,transparent 75%)}
.final .wrap{position:relative}
.final h2{font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.35;letter-spacing:-.5px}
.final p{margin:16px auto 30px;max-width:620px;color:#c8dcf3;font-size:16px}
.final .btn-primary{background:#fff;color:var(--blue)}
.final .btn-primary:hover{background:#eaf4ff}

/* ---------- 页脚 ---------- */
.site-footer{background:#0b1e36;color:#9fb6d1;padding:56px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:#1a3459;box-shadow:none;border:1px solid rgba(255,255,255,.18)}
.footer-brand strong{font-size:19px;color:#fff;letter-spacing:2px}
.site-footer p{line-height:1.9;max-width:380px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:1px}
.footer-col a,.footer-col span{display:block;padding:5px 0;color:#9fb6d1;transition:color .2s}
.footer-col a:hover{color:var(--sky)}
.footer-bottom{padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7590ae}
.footer-bottom a{color:#9fb6d1}
.footer-bottom a:hover{color:#fff}

/* ---------- 动效 ---------- */
/* 渐进增强：只有 JS 可用时才隐藏待入场元素，保证不执行 JS 的搜索引擎 / AI 抓取器仍能读到完整内容 */
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html.js .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:1050px){
  .hero-grid{gap:36px}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .aud-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{gap:16px}
}
@media(max-width:860px){
  .section{padding:68px 0}
  .hero{padding:64px 0 60px}
  .hero-grid,.about-grid,.faq-wrap{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2;margin-top:6px}
  .logo-card{width:min(58%,300px)}
  .float-chip.a{left:2%}.float-chip.b{right:2%}
  .nav-links{position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 20px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid #eef3f9}
  .nav-links .nav-cta{display:inline-flex;margin-top:14px;text-align:center;justify-content:center}
  .nav-toggle{display:flex}
  .nav>.btn-primary{display:none}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .path-grid{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:680px){
  .faq-item summary{grid-template-columns:1fr;gap:10px}
  .bubble-q{margin-right:12%}
  .bubble-a{margin-left:12%}
  .faq-aside{flex-direction:column;align-items:flex-start;padding:24px}
}
@media(max-width:560px){
  .wrap{width:min(100% - 32px,var(--max))}
  .cap-grid,.case-grid,.aud-grid{grid-template-columns:1fr}
  .cap-card > p{min-height:0}
  .hero-actions .btn{width:100%}
  .logo-card{width:66%}
  .float-chip{font-size:11.5px;padding:9px 12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* ---------- 子页页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(120deg,#0d2340,#163a68 55%,#1f4f8b);color:#fff;padding:58px 0 66px}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(110deg,#000,transparent 78%)}
.page-hero::after{content:"";position:absolute;z-index:0;top:-300px;right:-120px;width:660px;height:660px;border-radius:50%;background:radial-gradient(circle,rgba(90,170,245,.35),transparent 66%)}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(32px,3.6vw,50px);font-weight:800;letter-spacing:-.6px;line-height:1.25;margin-bottom:14px}
.page-hero p{font-size:16px;color:#cbdef3;max-width:680px;line-height:1.9}
.page-hero .btn{margin-top:26px}
.page-hero .eyebrow{margin-bottom:16px}
.crumb{display:flex;gap:10px;align-items:center;font-size:13px;color:#9dbbdd;margin-bottom:22px}
.crumb a:hover{color:#fff}
.crumb span:last-child{color:#c5daf0}

/* ---------- 动态滚动图 ---------- */
.marquee-section{background:#fff;border-block:1px solid var(--line);padding:72px 0;overflow:hidden}
.marquee-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.marquee-head h2{font-size:clamp(24px,2.4vw,32px);color:var(--navy);font-weight:800;line-height:1.4}
.marquee-head p{font-size:14.5px;color:var(--body);margin-top:8px}
.marquee{display:grid;gap:16px;--card-w:248px}
.marquee-row{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent)}
.marquee-track{display:flex;width:max-content;animation:marquee-left 64s linear infinite}
.marquee-row.reverse .marquee-track{animation-name:marquee-right;animation-duration:76s}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marquee-left{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes marquee-right{from{transform:translateX(-50%)}to{transform:translateX(0)}}
.marquee-card{flex:none;width:var(--card-w);margin-right:16px;display:block;border-radius:14px;overflow:hidden;background:var(--bg);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.marquee-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--shadow);border-color:#bcd7f5}
.marquee-card img{width:100%;height:auto;aspect-ratio:275/184;object-fit:cover}
.marquee-note{margin-top:22px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.marquee-note svg{width:15px;height:15px}
@media(max-width:860px){.page-hero{padding:46px 0 54px}.marquee-section{padding:58px 0}}
@media(max-width:560px){.marquee{--card-w:200px}.marquee-section{padding:50px 0}}
@media(prefers-reduced-motion:reduce){.marquee-track{animation:none}}

/* ---------- AI训练营主视觉 ---------- */
.camp-banner{background:#fff;border-bottom:1px solid var(--line);padding:52px 0}
.camp-banner-figure{margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#0d2340}
.camp-banner-figure img{width:100%;height:auto;display:block}
.camp-banner-foot{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:24px;flex-wrap:wrap}
.camp-banner-foot p{font-size:15px;color:var(--body);max-width:700px}
@media(max-width:560px){.camp-banner{padding:34px 0}.camp-banner-foot .btn{width:100%}}

/* ---------- 平台实景 · 精品推荐 ---------- */
.showcase-group{margin-bottom:36px}
.group-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.group-head h3{font-size:19px;color:#fff;font-weight:800;display:flex;align-items:center;gap:10px}
.group-head h3 i{width:8px;height:8px;border-radius:50%;background:var(--sky);box-shadow:0 0 0 5px rgba(139,212,245,.16)}
.group-head span{font-size:12.5px;color:#9dbbdd}
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pick-card{display:block;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;overflow:hidden;transition:transform .25s,border-color .25s,background .25s}
.pick-card:hover{transform:translateY(-4px);border-color:rgba(139,212,245,.65);background:rgba(255,255,255,.1)}
.pick-media{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;background:#0d2038}
.pick-media img{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
.pick-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:rgba(12,30,54,.62);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.6);color:#fff;transition:transform .25s,background .25s}
.pick-play svg{width:22px;height:22px}
.pick-card:hover .pick-play{transform:translate(-50%,-50%) scale(1.1);background:var(--blue)}
.pick-caption{display:block;padding:14px 16px 16px}
.pick-caption strong{display:block;font-size:15.5px;color:#fff}
.pick-caption small{display:block;margin-top:5px;font-size:12.5px;color:#a9c4e2;line-height:1.6}

/* ---------- 往期学习回顾 ---------- */
.course-review{background:#fff;border-top:1px solid var(--line)}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.course-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcd7f5}
.course-cover{position:relative;display:block;aspect-ratio:1/1;overflow:hidden;background:#12233c}
.course-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.course-card:hover .course-cover img{transform:scale(1.04)}
.course-cat{position:absolute;left:12px;top:12px;font-size:11.5px;font-weight:800;letter-spacing:.5px;color:#fff;background:rgba(15,39,69,.78);backdrop-filter:blur(4px);padding:5px 10px;border-radius:7px}
.course-body{display:flex;flex-direction:column;gap:9px;padding:18px 18px 20px;flex:1}
.course-body strong{font-size:16px;line-height:1.5;color:var(--navy);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-desc{font-size:13.5px;color:var(--body);line-height:1.75;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.course-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px;font-size:12px;color:var(--muted)}
.course-badge{background:#eaf2fd;color:var(--blue);border-radius:6px;padding:3px 9px;font-weight:700}
@media(max-width:1050px){.pick-grid,.course-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.pick-grid,.course-grid{grid-template-columns:1fr}.showcase-group{margin-bottom:28px}}