/* ============================================================
   算数猫 Math Cat · 全新视觉系统（v2 重构）
   设计方向：猫系几何 · 靛蓝主色 + 暖琥珀点缀 + 薄荷辅助
   布局：非对称 / 左对齐标题 / 流程步骤 / 竖向路径 / 交错特性
   ============================================================ */

/* ===== 设计变量 ===== */
:root{
  --ink:#1c1d2b;
  --indigo:#3B82F6;
  --indigo-d:#2563EB;
  --indigo-l:#EEF0FF;
  --blue:#2563EB;
  --amber:#F59E0B;
  --amber-d:#D97706;
  --mint:#10B981;
  --rose:#F43F5E;
  --cream:#FFFDF7;
  --paper:#FFFFFF;
  --soft:#F5F3FF;
  --line:#ECEAF6;
  --muted:#6B7280;
  --radius:18px;
  --radius-lg:30px;
  --shadow:0 18px 44px rgba(79,70,229,.10);
  --shadow-sm:0 6px 18px rgba(28,29,43,.06);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--cream);line-height:1.78;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:96px 0}
.section.soft{background:var(--soft)}
.section.indigo{background:linear-gradient(135deg,var(--indigo-d),var(--indigo));color:#fff}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;cursor:pointer;border:1.5px solid transparent;transition:.25s;line-height:1}
.btn-primary{background:var(--indigo);color:#fff;box-shadow:0 10px 24px rgba(79,70,229,.30)}
.btn-primary:hover{background:var(--indigo-d);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#3a2a05;box-shadow:0 10px 24px rgba(245,158,11,.32)}
.btn-amber:hover{background:var(--amber-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{color:var(--indigo);border:1.5px solid var(--line);background:#fff}
.btn-ghost:hover{border-color:var(--indigo);background:var(--indigo-l)}
.btn-light{background:#fff;color:var(--indigo)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn-lg{padding:16px 38px;font-size:16px}

/* ===== 顶部导航 ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,253,247,.9);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:.3s}
.header.scrolled{box-shadow:0 6px 26px rgba(28,29,43,.08);border-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:center;text-decoration:none}
.brand-logo{height:40px;width:auto;display:block}
.nav-menu{display:flex;gap:6px}
.nav-menu a{font-size:15px;color:var(--ink);font-weight:600;padding:8px 14px;border-radius:999px;transition:.2s}
.nav-menu a:hover{background:var(--indigo-l);color:var(--indigo)}
.nav-menu a.active{background:var(--indigo);color:#fff}
.nav-actions{display:flex;gap:10px;align-items:center}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

/* ===== 区块标题（左对齐，非居中） ===== */
.head{max-width:760px;margin:0 0 46px}
.head.center{margin-left:auto;margin-right:auto;text-align:center}
.head-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:2px;color:var(--indigo);background:var(--indigo-l);padding:6px 14px;border-radius:999px;margin-bottom:16px;text-transform:uppercase}
.head-kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber)}
.head-title{font-size:clamp(28px,4.4vw,44px);font-weight:900;letter-spacing:-.5px;line-height:1.15}
.head-title .hl{color:var(--indigo);position:relative;white-space:nowrap}
.head-title .hl::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;background:rgba(245,158,11,.32);z-index:-1;border-radius:4px}
.head-sub{color:var(--muted);margin-top:16px;font-size:17px}
.section.indigo .head-kicker{background:rgba(255,255,255,.16);color:#fff}
.section.indigo .head-kicker::before{background:var(--amber)}
.section.indigo .head-title{color:#fff}
.section.indigo .head-title .hl{color:var(--amber)}
.section.indigo .head-title .hl::after{background:rgba(255,255,255,.22)}
.section.indigo .head-sub{color:rgba(255,255,255,.82)}
/* 数据带 / 核心口号带 背景图（图片位于 static/default/pc/images/，可直接替换同名文件） */
/*.section.data-band{background:linear-gradient(rgba(30,27,75,.80),rgba(30,27,75,.80)),url(../images/databand.svg) center/cover no-repeat}*/
.section.data-band{background:url(../images/databand.svg) center/cover no-repeat}
.section.slogan-band{background:linear-gradient(rgba(30,27,75,.82),rgba(30,27,75,.82)),url(../images/slogan.svg) center/cover no-repeat}

/* ===== Hero（非对称分栏，非轮播） ===== */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 500px at 88% -10%,rgba(245,158,11,.16),transparent 60%),
  radial-gradient(700px 520px at -5% 110%,rgba(79,70,229,.14),transparent 60%),
  url(../images/hero.svg) center/cover no-repeat,
  var(--cream);
  padding:140px 0 90px;
}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(105deg,rgba(255,255,255,.55),rgba(255,250,240,.30) 55%,rgba(255,255,255,.6))}
.hero-dots-bg{position:absolute;inset:0;background-image:radial-gradient(rgba(79,70,229,.10) 1.4px,transparent 1.4px);background-size:26px 26px;mask-image:linear-gradient(180deg,#000,transparent 80%);opacity:.6}
.hero-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:700;color:var(--indigo);margin-bottom:22px}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(16,185,129,.18)}
.hero-title{font-size:clamp(38px,5.6vw,68px);font-weight:900;line-height:1.08;letter-spacing:-1px}
.hero-title .ink{color:var(--indigo)}
.hero-title .amber{color:var(--amber)}
.hero-lead{margin:24px 0 30px;font-size:18px;color:#444a5c;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hchip{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-sm);min-width:108px}
.hchip b{display:block;font-size:26px;font-weight:900;color:var(--indigo);font-variant-numeric:tabular-nums;line-height:1}
.hchip span{font-size:13px;color:var(--muted);margin-top:6px;display:block}

/* Hero 视觉：层叠课程卡 */
.hero-visual{position:relative;height:420px}
.hv-card{position:absolute;background:#fff;border-radius:22px;box-shadow:0 24px 50px rgba(28,29,43,.14);padding:20px;overflow:hidden}
.hv-card.c1{top:10px;left:8%;width:74%;z-index:3}
.hv-card.c2{top:120px;right:-4%;width:58%;z-index:2;transform:rotate(5deg);background:var(--indigo);color:#fff}
.hv-card.c3{bottom:0;left:0;width:60%;z-index:1;transform:rotate(-4deg);background:var(--amber);color:#3a2a05}
.hv-tag{font-size:12px;font-weight:800;letter-spacing:1px;opacity:.8;text-transform:uppercase}
.hv-title{font-size:19px;font-weight:900;margin:8px 0 14px}
.hv-bar{height:10px;border-radius:999px;background:rgba(255,255,255,.35);overflow:hidden;margin-bottom:10px}
.hv-bar i{display:block;height:100%;border-radius:999px;background:#fff}
.hv-card.c1 .hv-bar{background:var(--indigo-l)}
.hv-card.c1 .hv-bar i{background:var(--indigo)}
.hv-emoji{font-size:34px;margin-bottom:6px}
.hv-float{position:absolute;right:6%;top:-14px;z-index:4;background:#fff;border-radius:50%;width:62px;height:62px;display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 14px 30px rgba(28,29,43,.18)}

/* ===== 跑马灯（深色胶囊带） ===== */
.marquee{background:var(--ink);color:#fff;padding:16px 0;overflow:hidden}
.marquee-track{display:flex;gap:38px;width:max-content;animation:mq 26s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:inline-flex;align-items:center;gap:12px;font-size:15px;font-weight:600;white-space:nowrap;opacity:.92}
.marquee-item::before{content:"✦";color:var(--amber)}
@keyframes mq{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ===== 理念带（满宽斜色带，左文右三点） ===== */
.belief{background:linear-gradient(120deg,var(--indigo),#6D5DE6);color:#fff;border-radius:0;position:relative;overflow:hidden}
.belief .container{display:grid;grid-template-columns:1.1fr 1fr;gap:46px;align-items:center;padding:64px 22px}
.belief-quote{font-size:clamp(24px,3.4vw,38px);font-weight:800;line-height:1.3}
.belief-quote .u{background:linear-gradient(transparent 62%,rgba(245,158,11,.55) 0);padding:0 2px}
.belief-tri{display:flex;flex-direction:column;gap:16px}
.belief-tri li{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:16px 18px}
.belief-tri .bt-no{flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--amber);color:#3a2a05;font-weight:900;display:flex;align-items:center;justify-content:center;font-size:15px}
.belief-tri b{display:block;font-size:16px;margin-bottom:3px}
.belief-tri span{font-size:14px;opacity:.86}

/* ===== 三大课程支柱（巨型序号） ===== */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 26px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pillar-no{position:absolute;right:14px;top:6px;font-size:84px;font-weight:900;line-height:1;color:var(--indigo-l);z-index:0}
.pillar-body{position:relative;z-index:1}
.pillar-ico{width:54px;height:54px;border-radius:15px;background:var(--indigo-l);color:var(--indigo);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.pillar h3{font-size:21px;margin-bottom:10px}
.pillar p{color:var(--muted);font-size:15px}

/* ===== 费曼五步教学法（横向流程） ===== */
.process{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.process::before{content:"";position:absolute;left:8%;right:8%;top:50%;height:3px;border-top:3px dashed rgba(79,70,229,.3);z-index:0}
.step{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;text-align:center;box-shadow:var(--shadow-sm);transition:.3s}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.step-num{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--indigo);color:#fff;font-size:20px;font-weight:900;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(79,70,229,.32)}
.step h4{font-size:17px;margin-bottom:8px;color:var(--ink)}
.step p{font-size:13.5px;color:var(--muted);line-height:1.7}
.step .step-up{display:block;margin-top:10px;font-size:12px;font-weight:700;color:var(--amber-d)}

/* ===== L1-L6 学习路径（竖向路径） ===== */
.road{position:relative;margin-top:10px;padding-left:8px}
.road::before{content:"";position:absolute;left:27px;top:14px;bottom:14px;width:3px;background:linear-gradient(var(--indigo),var(--amber));border-radius:3px}
.road-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;padding:14px 0}
.road-badge{flex:0 0 56px;width:56px;height:56px;border-radius:16px;background:var(--indigo);color:#fff;font-weight:900;font-size:18px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(79,70,229,.3);z-index:1}
.road-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow-sm);transition:.3s}
.road-item:hover .road-card{transform:translateX(6px);box-shadow:var(--shadow)}
.road-card .rc-top{display:flex;align-items:baseline;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.road-card h4{font-size:19px;color:var(--indigo)}
.road-card .grade{font-size:13px;font-weight:700;color:#fff;background:var(--amber);padding:3px 12px;border-radius:999px}
.road-card p{color:var(--muted);font-size:14.5px;margin:0}
.road-card .rc-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.road-card .rc-tags span{font-size:12.5px;color:var(--indigo);background:var(--indigo-l);padding:4px 10px;border-radius:8px}

/* ===== 四大产品优势（卡片 2x2 / 4列，顶部色条） ===== */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.adv-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px 26px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
.adv-card::before{content:"";position:absolute;left:0;top:0;right:0;height:5px;background:var(--c,var(--indigo))}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.adv-ico{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:16px;background:var(--indigo-l)}
.adv-num{position:absolute;right:20px;top:22px;font-size:42px;font-weight:900;color:var(--line)}
.adv-card h3{font-size:20px;margin-bottom:10px;color:var(--ink)}
.adv-card p{color:var(--muted);font-size:14.5px}

/* ===== 五大特性（交错行） ===== */
.feat{display:flex;flex-direction:column;gap:26px}
.feat-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.feat-row:nth-child(even) .feat-media{order:2}
.feat-media{position:relative;height:230px;border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,var(--indigo),#6D5DE6);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.feat-media .fm-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.feat-text{position:relative}
.feat-text .ft-no{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--amber-d);margin-bottom:10px}
.feat-text h3{font-size:24px;margin-bottom:12px}
.feat-text p{color:var(--muted);font-size:15.5px}
.feat-points{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px}
.feat-points span{font-size:13px;font-weight:600;color:var(--indigo);background:var(--indigo-l);padding:6px 12px;border-radius:999px}

/* ===== 三端服务（三栏面板） ===== */
.triad{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.panel{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.3s}
.panel:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.panel-head{padding:22px 24px;color:#fff;display:flex;align-items:center;gap:14px}
.panel-head .ph-ico{width:46px;height:46px;border-radius:13px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:24px}
.panel-head h3{font-size:19px}
.panel-body{padding:22px 24px}
.panel-body li{padding:9px 0 9px 26px;position:relative;font-size:14.5px;color:#444a5c;border-top:1px dashed var(--line)}
.panel-body li:first-child{border-top:0}
.panel-body li::before{content:"✓";position:absolute;left:0;top:9px;color:var(--mint);font-weight:900}

/* ===== 数据带（深色，巨型数字） ===== */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.stat{text-align:center;padding:10px}
.stat-num{font-size:clamp(34px,4.5vw,52px);font-weight:900;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1}
.stat-label{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.85)}

/* ===== 新闻（杂志式） ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:.3s;text-decoration:none;color:inherit}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.news-thumb{height:190px;background-size:cover;background-position:center;position:relative}
.news-cat{position:absolute;left:14px;top:14px;background:var(--indigo);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:12.5px;color:var(--muted)}
.news-body h3{font-size:18px;line-height:1.45;margin-bottom:10px;color:var(--ink)}
.news-body p{font-size:14px;color:var(--muted);flex:1}
.news-more{margin-top:14px;color:var(--indigo);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.news-card:hover .news-more{gap:10px}
.news-filter{display:flex;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.news-filter a{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;text-decoration:none}
.news-filter a.active,.news-filter a:hover{border-color:var(--indigo);color:var(--indigo);background:var(--indigo-l)}

/* ===== 问题解答（两列网格，左色条） ===== */
.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:var(--maxw);margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-left:5px solid var(--indigo);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 24px;background:none;border:none;text-align:left;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer}
.faq-q::after{content:"+";flex:0 0 30px;width:30px;height:30px;border:1.5px solid var(--indigo);border-radius:50%;color:var(--indigo);font-size:20px;font-weight:400;display:flex;align-items:center;justify-content:center;transition:.3s;flex-shrink:0}
.faq-item.active{border-left-color:var(--amber)}
.faq-item.active .faq-q::after{content:"−";background:var(--amber);border-color:var(--amber);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;padding:0 24px;color:#556;font-size:15px;line-height:1.85}
.faq-item.active .faq-a{padding-bottom:22px}
.faq-a p{margin:0}

/* ===== 加盟 CTA（大圆角渐变块） ===== */
.cta{background:linear-gradient(125deg,var(--indigo-d),var(--indigo) 55%,#6D5DE6);color:#fff;border-radius:var(--radius-lg);padding:56px 50px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(245,158,11,.25)}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr 1fr;gap:30px;align-items:center}
.cta h2{font-size:clamp(26px,3.6vw,38px);font-weight:900;margin-bottom:12px}
.cta p{font-size:16px;opacity:.9;margin-bottom:0}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-phone{font-size:22px;font-weight:900;color:var(--amber);display:flex;align-items:center;gap:10px}

/* ===== 内页横幅（标题在左，面包屑导航在右） ===== */
.page-hero{position:relative;background:linear-gradient(120deg,var(--indigo-d),var(--indigo));color:#fff;padding:130px 0 70px;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:280px;border-radius:50%;background:rgba(245,158,11,.22)}
.page-hero .container{position:relative;z-index:2;display:flex;align-items:flex-start;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ph-left h1{font-size:clamp(30px,5vw,52px);font-weight:900;line-height:1.1}
.ph-left p{margin-top:14px;font-size:16px;opacity:.92;max-width:560px}
.ph-crumb{margin-left:auto;flex:0 0 auto;font-size:13px;opacity:.92;letter-spacing:1px;white-space:nowrap;text-align:right;padding:9px 18px;border:1px solid rgba(255,255,255,.3);border-radius:999px;background:rgba(255,255,255,.08)}
.ph-crumb a{color:#fff}
.ph-crumb a:hover{color:var(--amber)}

/* ===== 联系 / 页脚 ===== */
.footer{background:var(--ink);color:#fff;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .brand-logo{opacity:.95}
.footer-brand p{margin-top:16px;font-size:14px;opacity:.78;line-height:1.8;max-width:300px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--amber)}
.footer-col a{display:block;color:rgba(255,255,255,.8);padding:6px 0;font-size:14px;transition:.2s}
.footer-col a:hover{color:#fff;padding-left:6px}
.footer-contact li{display:flex;gap:12px;margin-bottom:14px;font-size:14px;opacity:.85;align-items:flex-start}
.footer-contact .fc-ico{font-size:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;font-size:13px;opacity:.72}
.footer-bottom .container{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ===== 灯箱 / 返回顶部 / 揭示动画（JS 依赖，保留） ===== */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:200;padding:30px}
.lightbox.open{display:flex}
.lightbox img{max-width:92%;max-height:88%;border-radius:8px}
.lightbox-close{position:absolute;top:20px;right:30px;color:#fff;font-size:40px;cursor:pointer;line-height:1}
.to-top{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;border:0;background:var(--indigo);color:#fff;font-size:20px;cursor:pointer;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.3s;z-index:90}
.to-top.show{opacity:1;pointer-events:auto}

/* ===== 右侧悬浮客服 ===== */
.side-bar{position:fixed;right:22px;bottom:84px;display:flex;flex-direction:column;gap:14px;z-index:95}
.sb-item{position:relative;width:48px;height:48px;border-radius:50%;background:#fff;border:0;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow);color:var(--ink);transition:.25s}
.sb-item svg{width:24px;height:24px;transition:.25s}
.sb-item:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(79,70,229,.22)}
.sb-tel{color:var(--indigo-d)}
.sb-tel:hover{background:var(--indigo-d);color:#fff}
.sb-wechat{color:var(--mint)}
.sb-wechat:hover{background:var(--mint);color:#fff}
.sb-msg{color:var(--rose)}
.sb-msg:hover{background:var(--rose);color:#fff}

/* 电话 / 留言 悬浮提示 */
.sb-tip{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(8px);background:var(--ink);color:#fff;padding:8px 14px;border-radius:12px;font-size:13px;line-height:1.5;white-space:nowrap;opacity:0;pointer-events:none;transition:.25s;box-shadow:0 10px 24px rgba(28,29,43,.25)}
.sb-tip b{font-size:15px}
.sb-item:hover .sb-tip{opacity:1;transform:translateY(-50%) translateX(0)}

/* 微信弹层 */
.sb-pop{position:absolute;right:60px;top:50%;transform:translateY(-50%) scale(.92);transform-origin:right center;width:184px;background:#fff;border-radius:16px;padding:16px;box-shadow:0 18px 44px rgba(28,29,43,.18);opacity:0;pointer-events:none;transition:.25s;text-align:center}
.sb-pop:before{content:"";position:absolute;right:-7px;top:50%;transform:translateY(-50%);border:8px solid transparent;border-left-color:#fff}
.sb-wechat:hover .sb-pop,.sb-wechat.open .sb-pop{opacity:1;pointer-events:auto;transform:translateY(-50%) scale(1)}
.sb-pop-tip{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px}
.sb-qr{width:148px;height:148px;object-fit:cover;border-radius:10px;background:var(--soft);margin:0 auto;display:block}
.sb-pop-foot{margin-top:10px;font-size:12px;color:var(--muted)}

/* 移动端同样展示悬浮客服，并把弹层改为居中浮层避免溢出 */
@media (max-width:980px){
  .side-bar{right:14px;bottom:72px;gap:12px;z-index:999}
  .sb-item{width:44px;height:44px}
  .sb-item:hover{transform:none}            /* 关键：去掉 hover 位移，避免生成包含块导致 fixed 弹层定位到按钮而非视口 */
  .sb-item svg{width:22px;height:22px}
  .sb-tip{display:none}
  .sb-pop{position:fixed;left:50%;top:50%;right:auto;bottom:auto;transform:translate(-50%,-50%) scale(.92);transform-origin:center;width:min(82vw,260px);padding:18px;z-index:1000;box-shadow:0 24px 60px rgba(28,29,43,.3)}
  .sb-wechat:hover .sb-pop{display:none}    /* 移动端不靠触摸 hover 触发，避免 sticky-hover 误开/关不掉 */
  .sb-wechat.open .sb-pop{display:block;opacity:1;pointer-events:auto;transform:translate(-50%,-50%) scale(1)}
  .sb-pop:before{display:none}
  .sb-qr{width:min(60vw,200px);height:min(60vw,200px)}
}
.reveal{opacity:0;transform:translateY(28px);transition:.7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 通用卡片网格（内页复用） ===== */
.seasons{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.season{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;text-align:center;box-shadow:var(--shadow-sm)}
.season b{display:block;font-size:18px;color:var(--indigo);margin-bottom:4px}
.season span{font-size:13px;color:var(--muted)}

/* 级别对照卡 */
.lvl-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:.3s;position:relative;overflow:hidden}
.lvl-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.lvl-card .lv-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.lvl-card .lv-badge{flex:0 0 auto;width:48px;height:48px;border-radius:14px;background:var(--indigo);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center;font-size:17px}
.lvl-card .lv-top h3{font-size:19px;color:var(--ink)}
.lvl-card .lv-row{margin-bottom:10px}
.lvl-card .lv-row .k{font-size:12.5px;font-weight:800;color:var(--amber-d);letter-spacing:1px;margin-bottom:3px}
.lvl-card .lv-row .v{font-size:14px;color:#444a5c;line-height:1.7}
.lvl-card .lv-row .v.small{font-size:13px;color:var(--muted)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ucard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.3s}
.ucard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.ucard .uc-ico{font-size:30px;margin-bottom:12px;display:block}
.ucard h3{font-size:19px;margin-bottom:10px;color:var(--ink)}
.ucard p{color:var(--muted);font-size:14.5px}
.ucard .uc-no{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--amber-d);margin-bottom:8px}
.notes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:1080px;margin:0 auto}

/* ===== 联系页：信息 + 表单 ===== */
.contact-split{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.cinfo{display:flex;flex-direction:column;gap:16px}
.cinfo .ci{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);transition:.3s}
.cinfo .ci:hover{border-color:var(--indigo)}
.cinfo .ci .ci-ico{font-size:24px;flex-shrink:0}
.cinfo .ci b{display:block;font-size:16px;margin-bottom:4px}
.cinfo .ci span{font-size:14.5px;color:var(--muted)}
.cform{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.cform h3{font-size:22px;margin-bottom:6px}
.cform .cf-sub{color:var(--muted);margin-bottom:20px;font-size:14.5px}
.cf-field{margin-bottom:16px}
.cf-field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.cf-field input,.cf-field select,.cf-field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;outline:none;transition:.2s;background:#fff;color:var(--ink)}
.cf-field input:focus,.cf-field select:focus,.cf-field textarea:focus{border-color:var(--indigo);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cf-success{display:none;text-align:center;padding:30px 20px}
.cf-success.show{display:block}
.cf-success .ok{width:60px;height:60px;border-radius:50%;background:var(--mint);color:#fff;font-size:32px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.cf-success h3{margin-bottom:8px}
.cf-success p{color:var(--muted)}

/* ===== 文章正文（news-detail） ===== */
.article-head{max-width:var(--maxw);margin:0 auto 30px}
.article-head h1{font-size:clamp(26px,4vw,40px);font-weight:900;line-height:1.25;color:var(--ink)}
.article-head .nd-meta{margin-top:16px;font-size:14.5px;display:flex;flex-wrap:wrap;gap:10px 22px;color:#5b6472}
.article-head .nd-meta span{display:inline-flex;align-items:center;gap:6px}
.article-head .nd-meta i{font-style:normal;opacity:.7}
.article{max-width:var(--maxw);margin:0 auto}
.article h2{font-size:24px;margin:30px 0 12px;color:var(--indigo);font-weight:800}
.article h3{font-size:19px;margin:22px 0 10px;color:var(--ink);font-weight:700}
.article p{font-size:16px;color:#3a4150;margin-bottom:15px;line-height:1.9}
.article img{max-width:100%;border-radius:var(--radius);margin:18px 0;box-shadow:var(--shadow-sm)}
.article ul{margin:0 0 16px 22px;list-style:disc}
.article li{font-size:16px;color:#3a4150;margin-bottom:7px;line-height:1.8}

/* 文章底部：上一页 / 下一页 导航 */
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:46px}
.anav{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;background:#fff;box-shadow:var(--shadow-sm);transition:.25s;text-decoration:none}
.anav:hover{border-color:var(--indigo);box-shadow:var(--shadow);transform:translateY(-3px)}
.anav .anav-lbl{font-size:13px;font-weight:700;color:var(--muted);display:flex;align-items:center;gap:6px}
.anav .anav-ttl{margin-top:8px;font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.45}
.anav.next{text-align:right}
.anav.next .anav-lbl{justify-content:flex-end}
.anav .anav-ttl{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .hero-wrap{grid-template-columns:1fr}
  .hero-visual{height:360px;margin-top:30px}
  .belief .container{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr}
  .process{grid-template-columns:1fr 1fr;gap:26px}
  .process::before{display:none}
  .adv-grid{grid-template-columns:1fr}
  .triad{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .contact-split{grid-template-columns:1fr}
  .cf-row{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr}
}
@media(max-width:760px){
  .nav-menu{position:fixed;top:72px;right:0;width:240px;height:calc(100vh - 72px);background:#fff;flex-direction:column;gap:0;padding:10px 0;box-shadow:-6px 0 24px rgba(0,0,0,.08);transform:translateX(100%);transition:.3s}
  .nav-menu.open{transform:none}
  .nav-menu a{padding:14px 22px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-menu a.active{background:var(--indigo);border-radius:0}
  .nav-toggle{display:flex}
  .nav-actions .btn-ghost{display:none}
  .section{padding:64px 0}
  .feat-row{grid-template-columns:1fr;gap:18px}
  .feat-row:nth-child(even) .feat-media{order:0}
  .news-grid{grid-template-columns:1fr}
  .faq-list{grid-template-columns:1fr}
  .notes-grid{grid-template-columns:1fr}
  .seasons{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .road-item{grid-template-columns:48px 1fr;gap:14px}
  .road-badge{width:48px;height:48px;font-size:15px}
  .ph-crumb{margin-left:auto;text-align:right}
}
@media(max-width:560px){
  .process{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}

/* ===== SEO / 可访问性增强 ===== */
.skip-link{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;z-index:-1}
.skip-link:focus{position:static;width:auto;height:auto;margin:8px;padding:8px 16px;background:#fff;color:var(--indigo);border-radius:8px;z-index:9999;overflow:visible}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

/* ===== 数字计数完成弹跳（js/animate.js 调用；inner.css 删除后遗失的 .pop 规则在此补回） ===== */
@keyframes pop-bounce{
  0%{transform:scale(1)}
  40%{transform:scale(1.18)}
  70%{transform:scale(.96)}
  100%{transform:scale(1)}
}
.pop{animation:pop-bounce 420ms cubic-bezier(.22,1,.36,1);will-change:transform}
@media(prefers-reduced-motion:reduce){
  .pop{animation:none}
}

/* ===== 新闻分页（适配站点配色：靛蓝 + 琥珀） ===== */
.news-pages{margin-top:42px;display:flex;justify-content:center}
.news-pages .pagination{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}
.news-pages .pagination li{display:inline-flex}
.news-pages .pagination li a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 16px;border:1.5px solid var(--line);border-radius:999px;color:var(--ink);font-weight:700;font-size:15px;background:#fff;transition:.2s}
.news-pages .pagination li a:hover{border-color:var(--amber);color:var(--amber-d);transform:translateY(-2px);box-shadow:0 8px 18px rgba(245,158,11,.18)}
.news-pages .pagination li.active a{background:var(--amber);border-color:var(--amber);color:#3a2a05;box-shadow:0 10px 22px rgba(245,158,11,.32)}
.news-pages .pagination li.active a:hover{color:#3a2a05;transform:none}
.news-pages .pagination li.disabled a{opacity:.4;cursor:not-allowed}
.news-pages .pagination li.disabled a:hover{transform:none;border-color:var(--line);color:var(--ink);box-shadow:none}