/* 发明家俱乐部 2026 v4 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;900&display=swap');
:root {
  --navy: #0a1a3a;
  --navy-mid: #0d2b5c;
  --blue: #1a6fd4;
  --cyan: #3db8ff;
  --gold: #ffd200;
  --gold-deep: #e6a800;
  --accent: #ff7700;
  --text: #1e2a3a;
  --text-light: #5a6a7a;
  --bg: #f0f5fb;
  --white: #fff;
  --shadow: 0 8px 28px rgba(10,26,58,.10);
  --radius: 12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.75;background:var(--bg)}
a{color:var(--blue);text-decoration:none;transition:.2s}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

.site-header{background:var(--white);box-shadow:0 2px 16px rgba(10,26,58,.08);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;gap:12px;flex-wrap:nowrap}
.brand{flex-shrink:0}
.brand-logo{height:52px;width:auto;max-width:220px;object-fit:contain}
.main-nav{flex:1;min-width:0}
.main-nav ul{display:flex;gap:2px;list-style:none;justify-content:flex-end;flex-wrap:nowrap;white-space:nowrap}
.main-nav a{display:block;padding:8px 11px;font-size:14px;color:var(--text);border-radius:8px;font-weight:500;white-space:nowrap}
.main-nav a:hover{background:rgba(26,111,212,.08);color:var(--blue)}
.main-nav li.active a{background:linear-gradient(135deg,var(--navy-mid),var(--blue));color:var(--white)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);border-radius:2px}

/* Banner: 完整显示门头，宽长窄高 */
.home-hero{position:relative;overflow:hidden;background:#0a1a3a}
.hero-slider{display:flex;transition:transform .6s ease}
.hero-slide{min-width:100%;position:relative;background:var(--navy);display:flex;align-items:center;justify-content:center}
.hero-slide img{width:100%;aspect-ratio:3.5/1;height:auto;object-fit:cover;object-position:left center;display:block}
.hero-caption{display:none}
.hero-caption h2{font-size:clamp(1.1rem,2.5vw,1.6rem);margin-bottom:4px;color:var(--gold)}
.hero-caption p{font-size:.95rem;opacity:.9}
.hero-dots{position:absolute;bottom:12px;right:24px;display:flex;gap:8px;z-index:5}
.hero-dots button{width:10px;height:10px;border-radius:50%;border:2px solid var(--white);background:transparent;cursor:pointer;padding:0}
.hero-dots button.active{background:var(--gold);border-color:var(--gold)}

.page-hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-mid) 45%,var(--blue) 100%);padding:48px 0;color:var(--white)}
.page-hero h1{font-size:1.8rem;margin-bottom:8px;color:var(--gold)}
.breadcrumb{background:var(--white);padding:10px 0;font-size:13px;color:var(--text-light);border-bottom:1px solid #e2eaf3}
.main-content{padding:40px 0;min-height:360px}
.section-title{text-align:center;margin-bottom:32px}
.section-title h2{font-size:1.7rem;color:var(--navy)}
.section-title .line{width:56px;height:4px;background:linear-gradient(90deg,var(--gold),var(--accent));margin:10px auto;border-radius:2px}
.section-title p{color:var(--text-light)}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.card:hover{transform:translateY(-4px)}
.card-img{height:170px;overflow:hidden;background:#eee}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:18px 20px 22px}
.card-body h3{font-size:1.1rem;margin-bottom:8px;color:var(--navy)}
.card-body p{font-size:14px;color:var(--text-light);margin-bottom:14px}
.btn{display:inline-block;padding:9px 22px;background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:var(--navy)!important;border-radius:8px;font-weight:700;font-size:14px}
.btn-outline{background:transparent;border:2px solid var(--blue);color:var(--blue)!important}

/* 旧站风格教学特色：图文左右交错 */
.feature-old{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-bottom:24px;background:var(--white);box-shadow:var(--shadow);border:1px solid #e0e6ef;overflow:hidden}
.feature-old.reverse .feature-old-img{order:2}
.feature-old.reverse .feature-old-text{order:1}
.feature-old-img{min-height:220px}
.feature-old-img img{width:100%;height:100%;object-fit:cover;min-height:220px}
.feature-old-text{padding:28px 32px}
.feature-old-text h3{color:var(--accent);font-size:1.35rem;margin-bottom:12px}
.feature-old-text ul{list-style:none;padding:0}
.feature-old-text li{padding:4px 0 4px 1em;position:relative;font-size:14px;color:var(--text-light);line-height:1.7}
.feature-old-text li::before{content:"★";position:absolute;left:0;color:var(--accent);font-size:12px}
.feature-stars{color:var(--accent);margin-top:12px;letter-spacing:4px}

.stats-bar{background:linear-gradient(120deg,var(--navy),var(--navy-mid));color:var(--white);padding:32px 0;margin:36px 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;text-align:center;max-width:640px;margin:0 auto}
.stat-num{font-size:2rem;font-weight:900;color:var(--gold)}
.stat-label{font-size:14px;opacity:.9}

.hex-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:24px 0}
.hex{background:linear-gradient(145deg,var(--navy-mid),var(--blue));color:#fff;padding:12px 16px;border-radius:8px;font-size:13px;font-weight:600}

.content-box,.prose{background:var(--white);padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
.prose p{margin-bottom:14px;line-height:1.9}

/* 关于我们：竖排大图 */
.about-stack{display:flex;flex-direction:column;gap:28px;max-width:860px;margin:0 auto}
.about-stack img{width:100%;border-radius:12px;box-shadow:var(--shadow)}

/* 学员风采相册 */
.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.album-card{display:block;background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);color:inherit}
.album-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(10,26,58,.15);color:inherit}
.album-card .thumb{height:180px;overflow:hidden}
.album-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.album-card:hover .thumb img{transform:scale(1.06)}
.album-card .info{padding:16px 18px}
.album-card .info h3{margin-bottom:6px;color:var(--navy)}
.album-card .info p{font-size:13px;color:var(--text-light);margin:0}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.gallery a{display:block;border-radius:8px;overflow:hidden;box-shadow:var(--shadow);background:#111}
.gallery img{width:100%;height:180px;object-fit:cover;transition:transform .3s}
.gallery a:hover img{transform:scale(1.04)}
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:999;align-items:center;justify-content:center;padding:20px}
.lightbox.open{display:flex}
.lightbox img{max-width:95vw;max-height:90vh;object-fit:contain}
.lightbox .close{position:absolute;top:16px;right:24px;color:#fff;font-size:32px;cursor:pointer;background:none;border:none}

.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{display:grid;grid-template-columns:160px 1fr;gap:18px;background:var(--white);padding:14px;border-radius:var(--radius);box-shadow:var(--shadow);align-items:center}
.news-item .thumb{height:100px;border-radius:8px;overflow:hidden;background:var(--navy)}
.news-item .thumb img{width:100%;height:100%;object-fit:cover}
.news-item h3{font-size:1.02rem;margin-bottom:4px}
.news-item h3 a{color:var(--text)}
.news-tag{font-size:11px;background:#e8f3ff;color:var(--blue);padding:2px 7px;border-radius:4px;margin-right:6px}
.news-item.highlight{border-left:4px solid var(--gold)}
.article-header{text-align:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid #e2eaf3}
.article-header h1{font-size:1.45rem;color:var(--navy)}
.article-body{background:var(--white);padding:28px 34px;border-radius:var(--radius);box-shadow:var(--shadow);max-width:800px;margin:0 auto}
.article-body img{max-width:100%;margin:12px auto;border-radius:6px}
.article-body p{margin-bottom:12px;line-height:1.9}
.article-nav{display:flex;justify-content:space-between;gap:12px;max-width:800px;margin:24px auto 0;flex-wrap:wrap}
.article-nav a{flex:1;min-width:180px;padding:12px;background:var(--white);border-radius:8px;box-shadow:var(--shadow);font-size:13px}
.article-nav .next{text-align:right}

.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:28px}
.team-grid img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);object-fit:cover;max-height:360px}

.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:28px}
.contact-grid .venue{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);object-fit:cover;max-height:480px}
.qr-box img{width:140px;border-radius:8px;margin-top:12px}

.site-footer{background:var(--navy);color:#9eb0c8;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:36px 20px}
.footer-grid h4{color:var(--gold);margin-bottom:10px}
.footer-qr{width:100px;margin-top:10px;border-radius:6px}
.footer-bottom{border-top:1px solid #1e3358;padding:14px 0;text-align:center;font-size:12px}
.footer-bottom a{color:#7a90aa}
.cta-band{background:linear-gradient(120deg,var(--gold-deep),var(--gold));color:var(--navy);padding:36px 0;text-align:center;margin-top:36px}
.cta-band .btn{background:var(--navy);color:var(--gold)!important;margin-top:10px}

.intro-banner{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;margin-bottom:32px}
.intro-banner .slogan{font-size:1.15rem;color:var(--blue);font-weight:700;margin-bottom:10px}
.intro-banner img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-height:260px;object-fit:cover}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:16px 0}
.level-table{width:100%;min-width:520px;border-collapse:collapse;font-size:.95rem}
.level-table th,.level-table td{border:1px solid #d8dee8;padding:10px 12px;text-align:left;vertical-align:top}
.level-table th{background:var(--navy);color:#fff;font-weight:600}
.level-table tr:nth-child(even){background:#f6f8fc}
.course-detail .prose p{margin-bottom:12px;line-height:1.75}
.course-detail h2{margin:8px 0 16px;color:var(--navy)}
@media(max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:var(--shadow);padding:10px;z-index:99}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;white-space:normal}
  .header-inner{position:relative;flex-wrap:wrap}
  .feature-old,.team-grid,.contact-grid,.intro-banner{grid-template-columns:1fr}
  .feature-old.reverse .feature-old-img,.feature-old.reverse .feature-old-text{order:unset}
  .news-item{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .brand-logo{height:40px}
  .page-hero{padding:32px 0}
  .container{padding-left:14px;padding-right:14px}
  .card-grid{gap:14px}
  .hero-dots{right:12px;bottom:8px}
  .section-title h2{font-size:1.35rem}
  .intro-banner{gap:16px;margin-bottom:20px}
  .stats-bar{padding:20px 0}
}