/* ===== 小智AI · 三科培优官网（菏泽） ===== */
/* 品牌：小智AI · AI学习平板 + 现场老师 · 英语速记 / 数学思维 / 语文阅读写作 */
/* 视觉：主蓝 #2F5BE6 · 活力橙 #FF8A00 · 雅绿 #16A06A · 浅蓝底 #F2F6FF */

:root{
  --blue:#2F5BE6; --blue-d:#10256B; --blue-2:#1B3FB8; --orange:#FF8A00;
  --green:#16A06A; --green-d:#0B6B44;
  --ink:#1B2430; --ink-2:#5A6472; --line:#E4E9F2;
  --bg:#FFFFFF; --bg-2:#F2F6FF; --bg-3:#0E1B45;
  --r:14px; --shadow:0 8px 24px rgba(16,37,107,.08);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);font-size:16px;line-height:1.75;background:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.wrap{max-width:900px;margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:.2s;line-height:1.4}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:#e67700;transform:translateY(-2px)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-2);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.75)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-line{background:#fff;color:var(--blue);border:1.5px solid var(--blue)}
.btn-line:hover{background:var(--bg-2)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ===== 顶栏 ===== */
.topbar{background:var(--blue-d);color:#cdd8ff;font-size:14px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px}
.topbar a{color:#fff;font-weight:600}
.topbar .tb-right{display:flex;gap:22px;align-items:center}
.topbar .tb-right span{white-space:nowrap}

/* ===== 主导航 ===== */
.main-nav{position:sticky;top:0;z-index:99;background:#fff;box-shadow:0 2px 12px rgba(16,37,107,.06)}
.main-nav .container{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;flex-shrink:0}
.logo-name{line-height:1.25}
.logo-name b{font-size:21px;color:var(--blue-d);letter-spacing:.5px}
.logo-name span{display:block;font-size:12px;color:var(--ink-2);letter-spacing:1px}
.nav-links{display:flex;gap:4px}
.nav-links a{padding:10px 12px;border-radius:999px;font-size:15px;color:var(--ink-2);font-weight:500;transition:.2s;white-space:nowrap}
.nav-links a:hover{color:var(--blue);background:var(--bg-2)}
.nav-links a.on{color:var(--blue);background:#EAF0FF}
.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-tel{display:none;font-size:14px;color:var(--ink-2);text-align:right;line-height:1.3}
.nav-tel b{font-size:18px;color:var(--orange);display:block;letter-spacing:.5px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle i{width:20px;height:2px;background:var(--blue-d);border-radius:2px;transition:.25s}
.nav-toggle.open i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open i:nth-child(2){opacity:0}
.nav-toggle.open i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero（首页） ===== */
.hero{position:relative;background:linear-gradient(135deg,#1640c4 0%,#2F5BE6 46%,#4f7cff 100%);color:#fff;overflow:hidden}
.hero .bg-shape{position:absolute;border-radius:50%;background:rgba(255,255,255,.07)}
.hero .hs1{width:420px;height:420px;right:-120px;top:-140px}
.hero .hs2{width:300px;height:300px;left:-90px;bottom:-130px}
.hero .hs3{width:160px;height:160px;right:24%;bottom:-60px}
.hero .container{position:relative;z-index:2;padding-top:74px;padding-bottom:84px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:7px 16px;border-radius:999px;font-size:14px;margin-bottom:20px}
.hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:#5EF2A6}
.hero h1{font-size:44px;line-height:1.28;font-weight:800;letter-spacing:.5px;margin-bottom:18px}
.hero h1 .hl{color:#FFC36B}
.hero p.lead{font-size:18px;color:#E6ECFF;max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:0;border-top:1px solid rgba(255,255,255,.22);padding-top:24px;max-width:560px}
.hero-stats div{flex:1}
.hero-stats b{font-size:30px;font-weight:800;color:#fff;display:block}
.hero-stats span{font-size:13.5px;color:#C6D3FF}
.hero-card{background:#fff;color:var(--ink);border-radius:20px;padding:30px 28px;box-shadow:0 24px 60px rgba(8,20,70,.35)}
.hero-card h3{color:var(--blue-d);font-size:21px;margin-bottom:6px}
.hero-card p{color:var(--ink-2);font-size:14px;margin-bottom:20px}
.hero-card .fc{margin-bottom:12px}
.hero-card .fc input,.hero-card .fc select{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink);background:#FBFCFE;outline:none;transition:.2s}
.hero-card .fc input:focus,.hero-card .fc select:focus{border-color:var(--blue)}
.hero-card .btn{width:100%}
.hero-card .fc-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hero-card .agree{font-size:12px;color:#98A1AF;text-align:center;margin-top:12px}

/* ===== 通用区块 ===== */
.section{padding:86px 0}
.section.alt{background:var(--bg-2)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 52px}
.sec-head .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:14px;font-weight:700;letter-spacing:1px;margin-bottom:10px}
.sec-head .eyebrow::before,.sec-head .eyebrow::after{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px}
.sec-head h2{font-size:34px;color:var(--blue-d);font-weight:800;letter-spacing:.5px;line-height:1.35;margin-bottom:12px}
.sec-head p{color:var(--ink-2);font-size:16.5px}

/* ===== 三科入口 ===== */
.dual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dual-card{position:relative;overflow:hidden;border-radius:20px;padding:38px 30px;color:#fff;box-shadow:var(--shadow)}
.dual-card.en{background:linear-gradient(135deg,#0E2E9E,#2F5BE6)}
.dual-card.math{background:linear-gradient(135deg,#E67700,#FF8A00 55%,#FFAD42)}
.dual-card.cn{background:linear-gradient(135deg,#0B7A4B,#16A06A 55%,#3FBF8E)}
.dual-card::after{content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.09)}
.dual-card .tag{display:inline-block;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.4);padding:4px 14px;border-radius:999px;font-size:13px;margin-bottom:18px}
.dual-card h3{font-size:26px;font-weight:800;margin-bottom:10px;letter-spacing:.5px}
.dual-card p{font-size:15px;color:rgba(255,255,255,.9);margin-bottom:24px;max-width:440px}
.dual-card .feat{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.dual-card .feat span{background:rgba(255,255,255,.16);padding:5px 12px;border-radius:999px;font-size:13px}
.dual-card .btn{background:#fff;color:var(--blue-d)}
.dual-card.math .btn{color:#B45A00}
.dual-card.cn .btn{color:var(--green-d)}

/* ===== 方法论 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 22px;position:relative;transition:.25s}
.step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step-num{width:44px;height:44px;border-radius:12px;background:var(--bg-2);color:var(--blue);font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step-card h4{font-size:18px;color:var(--blue-d);margin-bottom:8px}
.step-card p{font-size:14.5px;color:var(--ink-2)}

/* ===== 课程卡片 ===== */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.course-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.course-card .cc-head{padding:24px 24px 18px;border-bottom:1px dashed var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.course-card .cc-head h3{font-size:19px;color:var(--blue-d)}
.course-card .cc-head p{font-size:13px;color:var(--ink-2)}
.course-card .cc-tag{flex-shrink:0;background:#FFF3E3;color:#D96E00;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px}
.course-card .cc-body{padding:20px 24px;flex:1}
.course-card .cc-body li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:6px 0;align-items:flex-start}
.course-card .cc-body li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);margin-top:9px;flex-shrink:0}
.course-card .cc-foot{padding:16px 24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.course-card .price b{font-size:20px;color:#E4541A;font-weight:800}
.course-card .price span{font-size:13px;color:#98A1AF;margin-left:4px}
.course-card .more{color:var(--blue);font-size:14px;font-weight:600}

/* ===== 词汇分层 ===== */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.tier{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;text-align:center;transition:.25s;position:relative}
.tier:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.tier .grade{display:inline-block;background:var(--bg-2);color:var(--blue);font-size:13.5px;font-weight:700;padding:4px 14px;border-radius:999px;margin-bottom:14px}
.tier h3{font-size:26px;color:var(--blue-d);margin-bottom:4px}
.tier .cnt{color:var(--orange);font-size:14px;font-weight:700;margin-bottom:16px}
.tier ul li{font-size:14px;color:var(--ink-2);padding:5px 0;text-align:left;display:flex;gap:8px}
.tier ul li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--blue);margin-top:9px;flex-shrink:0}

/* ===== 能力标签 / 徽章 ===== */
.ability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ability{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;gap:16px;align-items:flex-start;transition:.25s}
.ability:hover{box-shadow:var(--shadow)}
.ability .ic{width:52px;height:52px;border-radius:14px;background:var(--bg-2);color:var(--blue);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ability h4{font-size:17px;color:var(--blue-d);margin-bottom:5px}
.ability p{font-size:14px;color:var(--ink-2)}

/* ===== AI学习平板 × 现场老师 双师模式 ===== */
.hybrid-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.hybrid-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:18px;padding:30px 30px 24px;transition:.25s}
.hybrid-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.hybrid-card.tea{border-top-color:var(--orange)}
.hybrid-card .hy-head{display:flex;align-items:center;gap:14px;margin-bottom:6px}
.hybrid-card .hy-ic{width:56px;height:56px;border-radius:16px;background:var(--bg-2);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;flex-shrink:0}
.hybrid-card.tea .hy-ic{background:#FFF3E3;color:#D96E00}
.hybrid-card .hy-role{font-size:12px;font-weight:700;letter-spacing:1.5px;color:var(--blue);display:block;margin-bottom:2px}
.hybrid-card.tea .hy-role{color:#D96E00}
.hybrid-card h3{font-size:20px;color:var(--blue-d);line-height:1.4}
.hybrid-card ul{margin-top:10px}
.hybrid-card ul li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line)}
.hybrid-card ul li:last-child{border-bottom:none;padding-bottom:4px}
.hybrid-card ul li .hx{flex-shrink:0;width:27px;height:27px;border-radius:8px;background:var(--bg-2);color:var(--blue);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.hybrid-card.tea ul li .hx{background:#FFF3E3;color:#D96E00}
.hybrid-card ul li b{display:block;font-size:15.5px;color:var(--blue-d);line-height:1.5}
.hybrid-card ul li p{font-size:14px;color:var(--ink-2);line-height:1.7}
.hybrid-chain{text-align:center;color:var(--ink-2);font-size:15.5px;margin-top:26px}
.hybrid-chain b{color:var(--blue-d)}
.hybrid-chain .arr{color:var(--orange);font-weight:800;margin:0 6px}
.flow-row .f-num.ai{background:var(--orange)}

/* ===== 名师 ===== */
.teacher-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.teacher{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}
.teacher:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.teacher .t-avatar{height:150px;background:linear-gradient(135deg,#EAF0FF,#D6E3FF);display:flex;align-items:center;justify-content:center;position:relative}
.teacher .t-avatar .avatar-char{width:86px;height:86px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:800;box-shadow:0 8px 20px rgba(16,37,107,.25)}
.teacher.math .t-avatar{background:linear-gradient(135deg,#FFF3E3,#FFE6C4)}
.teacher.math .avatar-char{background:linear-gradient(135deg,#FF8A00,#E67700)}
.teacher.cn .t-avatar{background:linear-gradient(135deg,#E7F6EE,#CDEDDB)}
.teacher.cn .avatar-char{background:linear-gradient(135deg,#16A06A,#0B7A4B)}
.teacher .t-info{padding:22px 24px}
.teacher .t-info h3{font-size:18px;color:var(--blue-d);margin-bottom:2px}
.teacher .t-info .t-pos{font-size:13px;color:var(--orange);font-weight:700;margin-bottom:10px}
.teacher .t-info p{font-size:13.5px;color:var(--ink-2)}
.teacher .t-tags{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 22px}
.teacher .t-tags span{background:var(--bg-2);color:var(--blue);font-size:12px;padding:4px 10px;border-radius:999px}

/* ===== 学员成果 ===== */
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.result-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;transition:.25s}
.result-card:hover{box-shadow:var(--shadow)}
.result-card .stars{color:var(--orange);letter-spacing:3px;font-size:15px;margin-bottom:12px}
.result-card blockquote{font-size:14.5px;color:var(--ink-2);margin-bottom:18px;line-height:1.85}
.result-card .who{display:flex;align-items:center;gap:12px}
.result-card .who .w-av{width:44px;height:44px;border-radius:50%;background:var(--bg-2);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:700}
.result-card .who b{font-size:14.5px;display:block;color:var(--ink)}
.result-card .who span{font-size:12.5px;color:#98A1AF}
.stat-band{background:linear-gradient(135deg,#0E1B45,#1B3FB8);border-radius:22px;color:#fff;display:grid;grid-template-columns:repeat(4,1fr);padding:42px 24px;margin-top:60px;text-align:center}
.stat-band div{position:relative}
.stat-band b{font-size:38px;font-weight:800;color:#fff}
.stat-band span{display:block;font-size:14px;color:#B9C7F2;margin-top:4px}

/* ===== 资讯 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card .n-thumb{height:150px;background:linear-gradient(135deg,#EAF0FF,#D6E3FF);position:relative}
.news-card.math .n-thumb{background:linear-gradient(135deg,#FFF3E3,#FFE6C4)}
.news-card.cn .n-thumb{background:linear-gradient(135deg,#E7F6EE,#CDEDDB)}
.news-card.cn .nt-tag{background:var(--green)}
.news-card .n-thumb .nt-tag{position:absolute;left:14px;top:14px;background:var(--orange);color:#fff;font-size:12px;padding:4px 12px;border-radius:999px;font-weight:600}
.news-card .n-body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.news-card .n-date{font-size:12.5px;color:#98A1AF;margin-bottom:8px}
.news-card h3{font-size:17px;color:var(--blue-d);line-height:1.5;margin-bottom:10px;flex:1}
.news-card p{font-size:13.5px;color:var(--ink-2)}
.news-card .n-foot{border-top:1px solid var(--line);padding:14px 24px;display:flex;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--ink-2)}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:14px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--blue-d);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:26px;color:var(--orange);font-weight:400;flex-shrink:0;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 24px 20px;color:var(--ink-2);font-size:15px;border-top:1px dashed var(--line);padding-top:14px}

/* ===== 试听 CTA 条 ===== */
.cta-band{background:linear-gradient(135deg,#0E1B45,#2F5BE6);color:#fff;text-align:center;padding:64px 0}
.cta-band h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-band p{color:#C6D3FF;font-size:17px;margin-bottom:30px}
.cta-band .btn{font-size:17px;padding:14px 40px}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-3);color:#B9C7F2;padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px}
.footer-grid h4{color:#fff;font-size:17px;margin-bottom:18px;font-weight:700}
.footer-grid a{display:block;color:#B9C7F2;font-size:14.5px;padding:5px 0;transition:.2s}
.footer-grid a:hover{color:#fff}
.footer-brand p{color:#93A4DC;font-size:14px;margin-top:14px;max-width:300px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;padding:6px 0;font-size:14.5px}
.footer-contact li b{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:13.5px;color:#8496CC}
.footer-qr{display:flex;gap:20px;margin-top:16px}
.footer-qr .qr-box{background:#fff;border-radius:10px;padding:12px;text-align:center;width:110px}
.footer-qr .qr-box .qr{width:82px;height:82px;background:repeating-conic-gradient(#10256B 0% 25%,#fff 0% 50%) 50%/14px 14px;border-radius:6px;margin:0 auto 8px}
.footer-qr .qr-box span{font-size:12px;color:#10256B;font-weight:600}

/* ===== 内页 Hero ===== */
.page-hero{background:linear-gradient(135deg,#10256B,#2F5BE6 60%,#4f7cff);color:#fff;padding:66px 0 60px;position:relative;overflow:hidden}
.page-hero .ph-shape{position:absolute;border-radius:50%;background:rgba(255,255,255,.07)}
.page-hero .p1{width:300px;height:300px;right:-80px;top:-90px}
.page-hero .p2{width:200px;height:200px;left:-60px;bottom:-90px}
.page-hero .container{position:relative;z-index:2}
.page-hero .crumb{font-size:14px;color:#B9C7F2;margin-bottom:14px}
.page-hero .crumb a{color:#fff}
.page-hero h1{font-size:40px;font-weight:800;margin-bottom:14px;letter-spacing:.5px}
.page-hero p{font-size:18px;color:#E0E8FF;max-width:680px}

/* ===== 列表页（资讯/师资） ===== */
.list-layout{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start}
.list-side{position:sticky;top:100px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;margin-bottom:20px}
.side-box h3{font-size:17px;color:var(--blue-d);margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--bg-2)}
.side-box.cat a{display:flex;justify-content:space-between;padding:10px 0;font-size:15px;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.side-box.cat a:hover,.side-box.cat a.on{color:var(--blue)}
.side-box.cat a b{color:var(--orange);font-weight:600}
.side-box.hot a{display:block;font-size:14.5px;color:var(--ink-2);padding:9px 0;line-height:1.6;border-bottom:1px dashed var(--line)}
.side-box.hot a:last-child{border:none}
.side-box.hot a:hover{color:var(--blue)}
.side-cta{background:linear-gradient(135deg,#E67700,#FF8A00);color:#fff;border-radius:var(--r);padding:26px 22px;text-align:center}
.side-cta h3{font-size:19px;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:#fff7ec;margin-bottom:18px}
.side-cta .btn{background:#fff;color:#C25E00;width:100%}
.pager{display:flex;gap:10px;justify-content:center;margin-top:44px}
.pager a{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--ink-2);background:#fff}
.pager a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.pager a:hover:not(.on){border-color:var(--blue);color:var(--blue)}

/* ===== 关于页 ===== */
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-intro .ai-copy h2{font-size:30px;color:var(--blue-d);font-weight:800;margin-bottom:16px;line-height:1.4}
.about-intro .ai-copy p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px}
.about-intro .ai-visual{height:320px;border-radius:20px;background:linear-gradient(135deg,#1640c4,#2F5BE6);position:relative;overflow:hidden;color:#fff;display:flex;flex-direction:column;justify-content:center;padding:40px}
.about-intro .ai-visual b{font-size:64px;font-weight:800;line-height:1}
.about-intro .ai-visual span{font-size:17px;color:#C6D3FF}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.value-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;text-align:center}
.value-box .v-num{font-size:30px;font-weight:800;color:var(--orange)}
.value-box h4{font-size:17px;color:var(--blue-d);margin:8px 0 6px}
.value-box p{font-size:13.5px;color:var(--ink-2)}
.flow-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.flow-row .f-item{text-align:center;flex:1}
.flow-row .f-num{width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:17px}
.flow-row .f-item h4{font-size:15.5px;color:var(--blue-d)}
.flow-row .f-item p{font-size:13px;color:var(--ink-2)}
.flow-row .f-arrow{color:#D8DEEB;font-size:24px;flex-shrink:0}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px}
.contact-info-box li{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.contact-info-box li:last-child{border:none}
.contact-info-box .c-ic{width:46px;height:46px;border-radius:12px;background:var(--bg-2);color:var(--blue);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:700;font-size:18px}
.contact-info-box b{color:var(--blue-d);display:block;font-size:15.5px;margin-bottom:2px}
.contact-info-box p{font-size:14.5px;color:var(--ink-2)}
.form-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px}
.form-panel h3{font-size:22px;color:var(--blue-d);margin-bottom:6px}
.form-panel .fp-sub{font-size:14px;color:var(--ink-2);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-panel .fc{margin-bottom:16px}
.form-panel label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-panel label em{color:#E4541A;font-style:normal}
.form-panel input,.form-panel select,.form-panel textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit;background:#FBFCFE;outline:none;transition:.2s}
.form-panel textarea{resize:vertical;min-height:90px}
.form-panel input:focus,.form-panel select:focus,.form-panel textarea:focus{border-color:var(--blue);background:#fff}
.form-panel .btn{width:100%;font-size:17px;padding:14px}
.form-tip{font-size:12.5px;color:#98A1AF;text-align:center;margin-top:12px}
.submit-ok{display:none;text-align:center;padding:30px 10px}
.submit-ok .ok-ic{width:64px;height:64px;border-radius:50%;background:#E8F8EF;color:#17A05E;font-size:30px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.submit-ok h4{font-size:20px;color:var(--blue-d);margin-bottom:8px}
.submit-ok p{font-size:14px;color:var(--ink-2)}
.submit-ok.show{display:block}
.form-panel form.hide{display:none}

/* ===== 悬浮按钮 ===== */
.float-btns{position:fixed;right:22px;bottom:24px;z-index:100;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.fb-consult{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#FF8A00,#E67700);color:#fff;box-shadow:0 10px 24px rgba(230,119,0,.4);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:26px;transition:.2s}
.fb-consult:hover{transform:scale(1.08)}
.fb-top{width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--blue);box-shadow:0 6px 16px rgba(16,37,107,.12);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;transition:.2s;opacity:0;pointer-events:none}
.fb-top.show{opacity:1;pointer-events:auto}
.fb-tip{position:relative}
.fb-tip .pop{position:absolute;right:70px;top:6px;background:#fff;border-radius:12px;box-shadow:0 12px 30px rgba(16,37,107,.18);padding:12px 16px;white-space:nowrap;font-size:14px;color:var(--blue-d);border:1px solid var(--line);opacity:0;pointer-events:none;transition:.25s}
.fb-tip:hover .pop{opacity:1}

/* ===== 文章正文 ===== */
.article{padding:56px 0 80px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:18px;padding:44px 52px;max-width:860px;margin:0 auto}
.article-body h1{font-size:30px;color:var(--blue-d);line-height:1.45;margin-bottom:14px}
.article-meta{display:flex;gap:20px;color:#98A1AF;font-size:13.5px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:28px}
.article-body h2{font-size:22px;color:var(--blue-d);margin:30px 0 14px;padding-left:12px;border-left:4px solid var(--orange)}
.article-body h3{font-size:18px;color:var(--blue-d);margin:24px 0 10px}
.article-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px}
.article-body ul{margin:0 0 16px;padding-left:4px}
.article-body ul li{color:var(--ink-2);font-size:15px;padding:4px 0 4px 22px;position:relative}
.article-body ul li::before{content:"";position:absolute;left:4px;top:15px;width:7px;height:7px;border-radius:2px;background:var(--blue)}
.article-body .tip-box{background:var(--bg-2);border-radius:12px;padding:18px 22px;margin:18px 0;font-size:14.5px;color:var(--blue-d);border-left:4px solid var(--blue)}
.article-body .cta-inline{background:linear-gradient(135deg,#0E1B45,#2F5BE6);border-radius:14px;color:#fff;padding:26px;text-align:center;margin:26px 0}
.article-body .cta-inline h4{font-size:19px;margin-bottom:6px}
.article-body .cta-inline p{color:#C6D3FF;font-size:14px;margin-bottom:16px}
.article-body .cta-inline .btn{background:var(--orange)}

/* ===== 资讯列表行 ===== */
.list-main{display:flex;flex-direction:column;gap:16px}
.nli{background:#fff;border:1px solid var(--line);border-radius:16px;display:flex;gap:20px;padding:22px 24px;transition:.2s;align-items:flex-start}
.nli:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.nli .n-date-box{flex-shrink:0;width:64px;height:64px;border-radius:12px;background:var(--bg-2);color:var(--blue);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.2}
.nli .n-date-box b{font-size:22px;font-weight:800}
.nli .n-date-box span{font-size:12px}
.nli .n-main{flex:1}
.nli .n-main h3{font-size:17.5px;color:var(--blue-d);margin-bottom:6px;line-height:1.5}
.nli .n-main h3:hover{color:var(--blue)}
.nli .n-main p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nli .n-meta{display:flex;gap:16px;margin-top:10px;font-size:12.5px;color:#98A1AF}
.nli .n-meta .cat-pill{background:#FFF3E3;color:#D96E00;padding:2px 10px;border-radius:999px;font-weight:600}
.campus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.campus-ph{aspect-ratio:4/3;border-radius:14px;background:linear-gradient(135deg,#EAF0FF,#D6E3FF);display:flex;align-items:center;justify-content:center;color:#6E85C9;font-size:14px;border:1px dashed #B9C9EF}
.campus-ph.math{background:linear-gradient(135deg,#FFF3E3,#FFE6C4);color:#C9923F;border-color:#F0D5A8}
.campus-ph.cn{background:linear-gradient(135deg,#E7F6EE,#CDEDDB);color:#17805A;border-color:#B9DFCC}
@media (max-width:600px){.campus-grid{grid-template-columns:1fr 1fr}.nli{flex-direction:column;gap:12px}}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .steps,.course-grid,.tier-grid,.news-grid,.result-grid,.ability-grid,.teacher-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .dual-grid{grid-template-columns:1fr 1fr}
  .dual-card.cn{grid-column:1/-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:1180px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#fff;flex-direction:column;padding:90px 28px 30px;box-shadow:-10px 0 30px rgba(16,37,107,.12);transition:.3s;z-index:98;gap:4px}
  .nav-links.open{right:0}
  .nav-links a{padding:14px 16px;font-size:17px}
  .nav-cta .nav-tel{display:none}
  .hero .container{grid-template-columns:1fr;padding-top:52px;padding-bottom:60px}
  .hero h1{font-size:34px}
  .dual-grid,.about-intro,.contact-grid,.list-layout{grid-template-columns:1fr}
  .hybrid-grid{grid-template-columns:1fr}
  .list-side{position:static}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
  .section{padding:60px 0}
  .sec-head h2{font-size:27px}
  .flow-row{flex-wrap:wrap;gap:18px}
  .flow-row .f-arrow{display:none}
  .article-body{padding:30px 22px}
}
@media (max-width:600px){
  .steps,.course-grid,.tier-grid,.news-grid,.result-grid,.ability-grid,.teacher-grid,.value-grid{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:18px}
  .hero-stats div{flex:1 1 40%}
  .form-row,.hero-card .fc-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .topbar .tb-right span:first-child{display:none}
}


/* ===== PHP 版新增：文章详情页与前台动态列表 ===== */
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-head { text-align: center; margin-bottom: 26px; }
.article-head h1 { font-size: 28px; line-height: 1.45; color: var(--navy, #0B2A6B); margin: 12px 0 8px; }
.article-meta { color: #8a93a6; font-size: 13px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.article-body { background: #fff; border: 1px solid #edf0f6; border-radius: 14px; padding: 34px 40px; line-height: 1.95; font-size: 15.5px; color: #2b2f38; }
.article-body h2 { font-size: 20px; margin: 30px 0 10px; padding-left: 12px; border-left: 4px solid #155eef; color: var(--navy, #0B2A6B); }
.article-body p { margin: 12px 0; }
.article-body ul, .article-body ol { margin: 12px 0 12px 22px; }
.article-body li { margin: 6px 0; }
.article-body img { max-width: 100%; height: auto; border-radius: 10px; margin: 14px 0; }
.article-body blockquote { border-left: 3px solid #c8d4f5; background: #f5f8ff; margin: 14px 0; padding: 10px 16px; border-radius: 0 8px 8px 0; color: #47506a; }
.article-body b, .article-body strong { color: #155eef; }
.article-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 22px; flex-wrap: wrap; }
.article-nav a { background: #fff; border: 1px solid #edf0f6; padding: 10px 16px; border-radius: 10px; font-size: 13.5px; max-width: 48%; }
.article-nav a:hover { border-color: #155eef; color: #155eef; }
.article-nav .na-next { margin-left: auto; text-align: right; }
@media (max-width: 640px) { .article-body { padding: 22px 18px; } .article-head h1 { font-size: 22px; } }

/* 分类筛选条 */
.cat-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.cat-tabs a { border: 1px solid #dfe4ee; background: #fff; color: #45506a; padding: 7px 16px; border-radius: 30px; font-size: 13.5px; }
.cat-tabs a:hover { border-color: #155eef; color: #155eef; }
.cat-tabs a.on { background: #155eef; border-color: #155eef; color: #fff; }

/* 资讯文章项链接化 */
a.nli-link, a.nli-link:hover { color: inherit; text-decoration: none; display: block; }
a.nli-link .nli { transition: box-shadow .18s, transform .18s; border-radius: 12px; }
a.nli-link:hover .nli { box-shadow: 0 6px 22px rgba(21, 94, 239, .08); transform: translateY(-1px); }
a.nli-link .nli h3 { color: var(--navy, #0B2A6B); }
a.nli-link:hover .nli h3 { color: #155eef; }

/* 首页动态卡链接化 */
a.news-link { display: block; border-radius: 14px; overflow: hidden; background: #fff; color: inherit; text-decoration: none; }
a.news-link:hover .news-card h3 { color: #155eef; }