<style>
:root{
  --blue:#1a6fe0;--blue-dark:#0d4fa8;--blue-light:#eff6ff;
  --bg:#f2f6fc;--card:#fff;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;
  --green:#16a34a;--orange:#ea580c;--red:#dc2626;--gold:#d97706;
  --r:16px;--shadow:0 4px 24px rgba(13,79,168,.08);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;}
::selection{background:#bfdcff;}

/* ---------- 顶部英雄区 ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0d4fa8,#1a6fe0 55%,#38bdf8);color:#fff;padding:64px 20px 88px;text-align:center;}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);opacity:.35;animation:float 8s ease-in-out infinite;}
.hero::before{width:220px;height:220px;background:radial-gradient(circle,#7dd3fc,transparent 70%);top:-60px;left:-40px;}
.hero::after{width:300px;height:300px;background:radial-gradient(circle,#93c5fd,transparent 70%);bottom:-100px;right:-60px;animation-delay:-4s;}
@keyframes float{0%,100%{transform:translateY(0) scale(1);}50%{transform:translateY(-24px) scale(1.08);}}
.hero-in{position:relative;z-index:2;max-width:760px;margin:0 auto;}
.hero h1{font-size:clamp(26px,6vw,44px);letter-spacing:2px;animation:up .8s ease both;}
.hero .sub{margin-top:12px;font-size:clamp(13px,3.2vw,16px);opacity:.92;animation:up .8s .15s ease both;}
@keyframes up{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:none;}}
.hero-tags{margin-top:20px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center;animation:up .8s .3s ease both;}
.hero-tags span{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(4px);padding:4px 14px;border-radius:20px;font-size:12.5px;}
.stats{margin-top:32px;display:flex;gap:0;justify-content:center;flex-wrap:wrap;animation:up .8s .45s ease both;}
.stat{padding:0 clamp(14px,4vw,36px);}
.stat+.stat{border-left:1px solid rgba(255,255,255,.25);}
.stat b{display:block;font-size:clamp(24px,6vw,38px);font-variant-numeric:tabular-nums;}
.stat span{font-size:12px;opacity:.85;}
.hero-cta{margin-top:34px;display:inline-block;background:#fff;color:var(--blue-dark);font-weight:700;padding:13px 38px;border-radius:30px;text-decoration:none;font-size:15px;box-shadow:0 8px 30px rgba(0,0,0,.18);transition:.25s;animation:pulse 2.4s infinite;}
.hero-cta:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,.25);}
@keyframes pulse{0%,100%{box-shadow:0 8px 30px rgba(255,255,255,.25);}50%{box-shadow:0 8px 42px rgba(255,255,255,.55);}}

/* ---------- 吸顶导航 ---------- */
nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:10px 16px;display:flex;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
nav::-webkit-scrollbar{display:none;}
nav a{flex:none;color:var(--muted);text-decoration:none;font-size:13px;padding:6px 14px;border-radius:20px;transition:.2s;}
nav a:hover,nav a.on{background:var(--blue-light);color:var(--blue-dark);font-weight:600;}

/* ---------- 主体 ---------- */
.wrap{max-width:1020px;margin:0 auto;padding:24px 16px 90px;}
h2.sec-title{text-align:center;font-size:clamp(19px,4.5vw,24px);margin:38px 0 6px;color:var(--blue-dark);}
p.sec-sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:20px;}

/* 筛选器 */
.filters{display:flex;gap:9px;flex-wrap:wrap;justify-content:center;margin-bottom:22px;}
.chip{border:1.5px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:600;padding:8px 17px;border-radius:22px;cursor:pointer;transition:.25s;font-family:inherit;}
.chip:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px);box-shadow:0 4px 12px rgba(26,111,224,.12);}
.chip.on{background:linear-gradient(135deg,var(--blue),#38bdf8);border-color:var(--blue);color:#fff;box-shadow:0 5px 16px rgba(26,111,224,.35);}

/* 计算器 */
.calc{background:linear-gradient(135deg,#0d4fa8,#1a6fe0);color:#fff;border-radius:var(--r);padding:24px;box-shadow:var(--shadow);}
.calc h3{font-size:16px;margin-bottom:14px;}
.calc-row{display:flex;align-items:center;gap:12px;margin:12px 0;font-size:13.5px;}
.calc-row label{flex:none;width:96px;opacity:.9;}
.calc-row input[type=range]{flex:1;accent-color:#7dd3fc;height:22px;}
.calc-row output{flex:none;width:92px;text-align:right;font-weight:700;font-variant-numeric:tabular-nums;}
.calc-out{margin-top:14px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:12px;padding:12px 16px;text-align:center;font-size:14px;}
.calc-out b{font-size:26px;font-variant-numeric:tabular-nums;letter-spacing:1px;}

/* 方案卡（每个方案一套主题色 --c1/--c2） */
.plan{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin-bottom:16px;box-shadow:var(--shadow);overflow:hidden;transition:.3s;}
.plan::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--c1),var(--c2));z-index:1;}
.plan:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(13,79,168,.16);border-color:var(--c1);}
.plan.hide{display:none;}
.plan-head{display:flex;align-items:center;gap:14px;padding:18px 20px;cursor:pointer;user-select:none;transition:.25s;}
.plan-head:hover{background:linear-gradient(90deg,rgba(26,111,224,.05),rgba(255,255,255,0));}
.plan.open .plan-head{border-bottom:1px solid var(--line);}
/* 序号 + 图标合并为同一个徽标：主体是主题色渐变块放图标，右下角挂序号 */
.pnum{position:relative;flex:none;width:48px;height:48px;border-radius:15px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:0 5px 14px rgba(13,79,168,.3);}
.pnum .ic{font-size:22px;line-height:1;filter:drop-shadow(0 1px 1px rgba(0,0,0,.18));}
.pnum .no{position:absolute;right:-4px;bottom:-4px;min-width:20px;height:20px;padding:0 5px;border-radius:7px;
  background:#fff;color:var(--c1);font-size:10.5px;font-weight:800;letter-spacing:-.3px;
  display:flex;align-items:center;justify-content:center;border:1.5px solid var(--c1);box-shadow:0 2px 5px rgba(13,79,168,.18);}
.plan-head h3{font-size:clamp(15px,3.8vw,17px);}
.plan-head small{display:block;font-weight:400;color:var(--muted);font-size:12px;margin-top:3px;}
.pmeta{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none;}
.prog-mini{width:52px;height:6px;background:#e2e8f0;border-radius:4px;overflow:hidden;}
.prog-mini i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c1),var(--c2));border-radius:4px;transition:.4s;}
.arrow{color:var(--muted);transition:.3s;font-size:13px;}
.plan.open .arrow{transform:rotate(180deg);color:var(--c1);}
.plan-body{max-height:0;overflow:hidden;transition:max-height .45s ease;}
.plan.open .plan-body{max-height:3400px;}
.badges{display:flex;gap:7px;flex-wrap:wrap;padding:0 20px;}
.b{font-size:11.5px;padding:4px 12px;border-radius:999px;border:1px solid var(--line);background:#f8fafc;color:var(--muted);font-weight:600;}
.b.cost{color:var(--blue);border-color:#bfdcff;background:var(--blue-light);}
.b.cycle{color:var(--orange);border-color:#fed7aa;background:#fff7ed;}
.b.low{color:var(--green);border-color:#bbf7d0;background:#f0fdf4;}
.b.mid{color:var(--orange);border-color:#fed7aa;background:#fff7ed;}
.plan-body-in{padding:16px 20px 20px;}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:13.5px;margin-top:14px;}
.duo>div{background:#fff;border:1px solid var(--line);border-left:3px solid var(--c1);border-radius:10px;padding:11px 14px;transition:.2s;}
.duo>div:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(13,79,168,.1);}
.duo h4{font-size:12.5px;color:var(--c1);margin-bottom:4px;display:flex;align-items:center;gap:5px;font-weight:700;}
.duo p{color:#334155;line-height:1.65;}
.sec-l{margin-top:18px;}
.sec-l h4{font-size:13.5px;color:var(--c1);margin-bottom:10px;padding-left:10px;border-left:3px solid var(--c1);display:flex;align-items:center;gap:6px;}
.step{display:flex;gap:10px;align-items:flex-start;background:#f8fafc;border:1px solid #eef2f7;border-radius:10px;padding:10px 12px;margin-bottom:8px;font-size:13px;cursor:pointer;transition:.2s;}
.step:hover{background:#fff;border-color:var(--c1);box-shadow:0 4px 12px rgba(13,79,168,.09);}
.step input{margin-top:4px;accent-color:var(--c1);flex:none;width:15px;height:15px;cursor:pointer;}
.step .sn{flex:none;width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:1px;box-shadow:0 2px 6px rgba(13,79,168,.25);}
.step .d{flex:none;color:var(--c1);font-weight:700;font-size:11px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 7px;margin-top:2px;min-width:56px;text-align:center;}
.step .t{flex:1;line-height:1.6;}
.step.done{opacity:.5;}
.step.done .sn{background:#94a3b8;}
.step.done .t{text-decoration:line-through;}
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px;font-size:12.5px;}
.tools div{background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 11px;display:flex;gap:8px;align-items:flex-start;transition:.2s;}
.tools div:hover{border-color:var(--c1);box-shadow:0 4px 12px rgba(13,79,168,.1);transform:translateY(-2px);}
.tools .ti{flex:none;font-size:14px;line-height:1.4;}
.tools div>div{flex:1;min-width:0;}
.tools b{color:#0f172a;display:block;}
.tools span{color:var(--muted);font-size:11.5px;display:block;}
.script{margin-top:12px;background:#fffbeb;border:1px solid #fcd34d;border-left:4px solid #22D3EE;border-radius:10px;padding:11px 14px;font-size:12.5px;color:#78350f;line-height:1.7;}
.script b{color:#92400e;}
.money{margin-top:12px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
.money div{background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-top:3px solid var(--c1);border-radius:10px;padding:10px 8px;text-align:center;transition:.2s;}
.money div:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(13,79,168,.12);}
.money span{display:block;font-size:10.5px;color:var(--muted);}
.money strong{font-size:13.5px;color:var(--c1);}
.warn{margin-top:12px;font-size:12px;color:#1E3A8A;background:#fff7ed;border:1px solid #fed7aa;border-left:4px solid var(--orange);border-radius:8px;padding:9px 12px;line-height:1.7;}
/* 引流获客 + 话术链 */
.tk{display:flex;gap:10px;align-items:flex-start;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px;padding:9px 12px;margin-bottom:7px;font-size:13px;transition:.2s;}
.tk:hover{box-shadow:0 4px 12px rgba(22,163,74,.12);transform:translateX(2px);}
.tk .kn{flex:none;width:20px;height:20px;border-radius:6px;background:#16a34a;color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px;}
.tk b{flex:none;color:#15803d;min-width:96px;font-size:12.5px;}
.tk span{flex:1;color:#334155;line-height:1.65;}
.ps{display:flex;gap:9px;align-items:flex-start;background:#fdf2f8;border:1px solid #fbcfe8;border-radius:10px;padding:9px 12px;margin-bottom:7px;font-size:13px;color:#831843;transition:.2s;}
.ps:hover{box-shadow:0 4px 12px rgba(190,24,93,.1);transform:translateX(2px);}
.ps .pn{flex:none;width:20px;height:20px;border-radius:6px;background:#be185d;color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px;}
.ps b{color:#be185d;font-size:12.5px;flex:none;min-width:92px;}
.ps>span:not(.pn){flex:1;line-height:1.65;}
/* 开屏弹窗 */
#adOverlay{position:fixed;inset:0;background:rgba(15,23,42,.62);backdrop-filter:blur(4px);z-index:999;display:none;align-items:center;justify-content:center;padding:20px;}
#adOverlay.show{display:flex;}
.ad{background:#fff;border-radius:20px;max-width:420px;width:100%;max-height:88vh;overflow-y:auto;position:relative;animation:pop .45s cubic-bezier(.34,1.56,.64,1);}
@keyframes pop{from{opacity:0;transform:scale(.85) translateY(30px);}to{opacity:1;transform:none;}}
.ad-close{position:absolute;top:10px;right:14px;width:32px;height:32px;border:none;background:#f1f5f9;border-radius:50%;font-size:15px;color:var(--muted);cursor:pointer;z-index:2;}
.ad-head{background:linear-gradient(135deg,#0d4fa8,#1a6fe0);color:#fff;text-align:center;padding:24px 18px 16px;border-radius:20px 20px 0 0;}
.ad-head h2{font-size:20px;letter-spacing:1px;}
.ad-head p{font-size:12px;opacity:.88;margin-top:4px;}
.ad-body{padding:16px 18px 18px;}
.ad-note{font-size:11.5px;color:var(--muted);background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin-bottom:12px;line-height:1.6;}
.ad-tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px;}
.ad-tiers>div{border:1.5px solid #bfdcff;background:var(--blue-light);border-radius:10px;padding:9px 4px;text-align:center;}
.ad-tiers em{font-style:normal;font-size:10px;color:var(--gold);font-weight:700;}
.ad-tiers b{display:block;font-size:16px;color:var(--blue-dark);margin:2px 0;}
.ad-tiers span{font-size:10.5px;color:var(--muted);display:block;line-height:1.4;}
.ad-btns{display:grid;gap:8px;}
.ad-btn{display:block;text-align:center;padding:11px;border-radius:10px;font-size:14px;font-weight:700;text-decoration:none;cursor:pointer;border:none;font-family:inherit;transition:.2s;}
.ad-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.15);}
.ad-btn.green{background:#16a34a;color:#fff;}
.ad-btn.blue{background:var(--blue);color:#fff;}
.ad-btn.gold{background:linear-gradient(100deg,#0EA5E9,#6366F1);color:#fff;box-shadow:0 6px 16px rgba(99,102,241,.28);}
.ad-btn.gold small{display:block;font-size:11px;font-weight:600;opacity:.92;margin-top:2px;letter-spacing:.2px;}
.ad-skip{display:block;text-align:center;margin-top:10px;font-size:12px;color:var(--muted);background:none;border:none;cursor:pointer;font-family:inherit;width:100%;}
/* 弹窗内二维码视图：长按识别最可靠，链接作为备用 */
.ad-qr{text-align:center;padding:2px 0;}
.ad-qr-t{font-size:13.5px;font-weight:800;color:var(--blue-dark);margin-bottom:11px;line-height:1.5;}
.ad-qr-img{display:block;width:196px;height:196px;object-fit:contain;margin:0 auto;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:8px;box-shadow:0 8px 20px rgba(13,79,168,.14);}
.ad-qr-h{font-size:11.5px;color:var(--muted);line-height:1.75;margin-top:11px;}
.ad-qr-h b{color:var(--blue-dark);}
.ad-qr-back{display:block;margin:12px auto 0;font-size:12px;color:var(--muted);background:none;border:none;cursor:pointer;font-family:inherit;text-decoration:underline;}
/* 引流教程平台标签页（每平台一套主题色 --c/--c2） */
.ptabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:18px;}
.ptab{border:1.5px solid var(--line);background:#fff;color:var(--muted);font-size:13.5px;padding:9px 18px;border-radius:24px;cursor:pointer;transition:.25s;font-family:inherit;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.ptab:hover{color:var(--c);border-color:var(--c);transform:translateY(-2px);}
.ptab.on{background:linear-gradient(135deg,var(--c),var(--c2));border-color:var(--c);color:#fff;box-shadow:0 5px 16px rgba(0,0,0,.18);}
.pcard{position:relative;background:var(--card);border:1px solid var(--line);border-top:4px solid var(--c);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);animation:pop .35s ease;}
.phead{display:flex;align-items:center;gap:13px;margin-bottom:10px;}
.phead .pico{flex:none;width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,var(--c),var(--c2));color:#fff;font-size:23px;display:flex;align-items:center;justify-content:center;box-shadow:0 5px 15px rgba(0,0,0,.16);}
.pcard h3{color:#0f172a;font-size:17px;margin-bottom:2px;}
.pcard .fit{font-size:12px;color:var(--gold);margin:0;}
.blk{background:#f8fafc;border:1px solid #e8eef6;border-left:4px solid #94a3b8;border-radius:10px;padding:12px 15px;margin-bottom:10px;font-size:13px;}
.blk b.t{display:flex;align-items:center;gap:6px;color:#334155;font-size:13px;margin-bottom:7px;padding-bottom:6px;border-bottom:1px dashed #dbe3ee;font-weight:700;}
.blk.red{background:#fef2f2;border-color:#fecaca;border-left-color:var(--red);}
.blk.red b.t{color:var(--red);border-bottom-color:#fecaca;}
.blk.grn{background:#f0fdf4;border-color:#bbf7d0;border-left-color:#16a34a;}
.blk.grn b.t{color:#15803d;border-bottom-color:#bbf7d0;}
.blk ul{margin:0;padding:0;list-style:none;}
.blk li{position:relative;padding-left:19px;margin:5px 0;color:#334155;line-height:1.7;}
.blk li::before{content:'';position:absolute;left:5px;top:9px;width:6px;height:6px;border-radius:50%;background:#94a3b8;}
.blk.red li::before{background:var(--red);}
.blk.grn li::before{background:#16a34a;}
.flowline{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;margin:10px 0 4px;}
.flowline>span{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--c);border-radius:999px;padding:5px 13px;color:#0f172a;font-weight:600;box-shadow:0 2px 7px rgba(0,0,0,.06);transition:.2s;}
.flowline>span:hover{background:var(--c);color:#fff;}
.flowline>span:hover i{background:#fff;color:var(--c);}
.flowline>span i{flex:none;width:18px;height:18px;border-radius:50%;background:var(--c);color:#fff;font-size:10px;font-style:normal;font-weight:800;display:flex;align-items:center;justify-content:center;}
.flowline>i{color:var(--c);font-style:normal;font-weight:800;font-size:13px;}

/* 变现落地入口 */
#nav .nav-land{background:linear-gradient(90deg,#1a6fe0,#38bdf8);color:#fff;font-weight:700;}
#nav .nav-land:hover{background:linear-gradient(90deg,#1559bd,#1a9fe0);}
/* 人生指南外链（同系列互链） */
#nav .nav-life{background:linear-gradient(90deg,#6d28d9,#2563eb);color:#fff;font-weight:700;}
#nav .nav-life:hover{background:linear-gradient(90deg,#5b21b6,#1d4ed8);}
.lcta{display:flex;align-items:center;gap:16px;background:linear-gradient(120deg,#0f3a72 0%,#1a6fe0 60%,#38bdf8 100%);
  color:#fff;border-radius:var(--r);padding:20px 22px;text-decoration:none;box-shadow:0 10px 28px rgba(13,79,168,.24);
  transition:.26s;margin-bottom:14px;}
.lcta:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(13,79,168,.32);}
.lcta-l{display:flex;align-items:center;gap:14px;flex:1;min-width:0;}
.lcta-ico{flex:none;width:50px;height:50px;border-radius:14px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.34);display:flex;align-items:center;justify-content:center;font-size:24px;}
.lcta-l b{display:block;font-size:16.5px;letter-spacing:.3px;}
.lcta-l i{display:block;font-style:normal;font-size:12.5px;opacity:.88;line-height:1.7;margin-top:3px;}
.lcta-btn{flex:none;background:#fff;color:#0f3a72;font-weight:800;font-size:13.5px;padding:11px 20px;border-radius:10px;white-space:nowrap;}
.lcta-tips{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;}
.lt{background:var(--card);border:1px solid var(--line);border-left:4px solid #1a6fe0;border-radius:10px;padding:12px 15px;box-shadow:var(--shadow);}
.lt b{display:block;font-size:13.5px;color:#0f172a;margin-bottom:3px;}
.lt span{font-size:12.5px;color:var(--muted);line-height:1.7;}
@media(max-width:640px){.lcta{flex-direction:column;align-items:flex-start;}.lcta-btn{width:100%;text-align:center;}}

/* 售卖方案 */
.sell{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);margin-bottom:16px;}
.sell h3{color:var(--blue-dark);font-size:16px;margin-bottom:10px;}
.sell table{width:100%;border-collapse:collapse;font-size:13px;margin:10px 0;}
.sell th,.sell td{border:1px solid var(--line);padding:8px 10px;text-align:left;}
.sell th{background:var(--blue-light);color:var(--blue-dark);}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-top:12px;}
.tier{border:1.5px solid var(--line);border-radius:12px;padding:16px;text-align:center;position:relative;transition:.25s;}
.tier:hover{transform:translateY(-4px);border-color:var(--blue);box-shadow:0 10px 26px rgba(26,111,224,.16);}
.tier.hot{border-color:var(--blue);background:linear-gradient(180deg,#f0f7ff,#fff);}
.tier .tag{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:11px;padding:2px 12px;border-radius:12px;white-space:nowrap;}
.tier b.price{font-size:26px;color:var(--blue-dark);}
.tier p{font-size:12.5px;color:var(--muted);margin-top:6px;text-align:left;}

/* 动效 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}.reveal{opacity:1;transform:none;}}
footer{background:#0d4fa8;color:#cbd5e1;text-align:center;padding:28px 20px;font-size:12px;line-height:2;}
footer b{color:#fff;}
.f-qr-row{display:flex;justify-content:center;gap:32px;margin-bottom:16px;flex-wrap:wrap;}
.f-qr{display:flex;flex-direction:column;align-items:center;gap:6px;}
.f-qr img{width:96px;height:96px;background:#fff;border-radius:8px;padding:4px;object-fit:contain;}
.f-qr img.hide{display:none;}
.f-qr-ph{width:96px;height:96px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px dashed #93b4e3;border-radius:8px;font-size:11px;color:#64748b;text-align:center;line-height:1.5;padding:4px;}
.f-qr b{color:#fff;font-size:12px;font-weight:400;}
.f-copy{margin-top:10px;padding-top:10px;border-top:1px solid rgba(255,255,255,.25);font-size:11.5px;color:#a9c3e8;max-width:640px;margin-left:auto;margin-right:auto;}
/* 课程广告横幅：橙→玫红→紫 流动渐变 + 扫光，比普通蓝条更抓眼 */
.course-banner{position:relative;overflow:hidden;display:flex;justify-content:space-between;align-items:center;gap:14px;max-width:1000px;margin:20px auto 0;padding:16px 20px;color:#fff;border-radius:16px;cursor:pointer;transition:.26s;
  background:linear-gradient(100deg,#0EA5E9 0%,#6366F1 48%,#8b5cf6 100%);background-size:220% 100%;
  animation:cbFlow 7s ease-in-out infinite;box-shadow:0 12px 28px rgba(99,102,241,.32);}
@keyframes cbFlow{0%,100%{background-position:0% 0}50%{background-position:100% 0}}
.course-banner:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(99,102,241,.45);}
.cb-glow{position:absolute;top:-60%;left:-30%;width:26%;height:220%;pointer-events:none;transform:skewX(-18deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);animation:cbBeam 5s ease-in-out infinite;}
@keyframes cbBeam{0%{left:-30%}55%,100%{left:135%}}
.cb-tag{position:absolute;top:0;right:0;background:#fff;color:#6366F1;font-size:11px;font-weight:800;letter-spacing:.5px;padding:3px 11px;border-radius:0 0 0 11px;box-shadow:0 2px 6px rgba(0,0,0,.14);}
.course-banner .cb-l{display:flex;align-items:center;gap:14px;min-width:0;position:relative;z-index:2;}
.course-banner .cb-ico{flex:none;width:52px;height:52px;border-radius:15px;font-size:26px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(255,255,255,.42),rgba(255,255,255,.16));border:1px solid rgba(255,255,255,.55);
  box-shadow:0 6px 16px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.5);animation:cbFloat 2.8s ease-in-out infinite;}
@keyframes cbFloat{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-5px) rotate(3deg)}}
.course-banner b{display:block;font-size:clamp(16.5px,4.2vw,20.5px);font-weight:900;letter-spacing:.4px;line-height:1.35;text-shadow:0 2px 8px rgba(0,0,0,.22);}
.course-banner b s{text-decoration:none;color:#A5F3FC;}
.course-banner i{font-style:normal;font-size:clamp(12px,3.1vw,13.2px);opacity:.98;display:block;margin-top:5px;line-height:1.65;text-shadow:0 1px 3px rgba(0,0,0,.18);}
.course-banner i em{font-style:normal;color:#A5F3FC;font-weight:800;}
.course-banner .cb-btn{position:relative;z-index:2;flex-shrink:0;background:#fff;color:#6366F1;font-size:13.5px;font-weight:800;padding:10px 20px;border-radius:11px;box-shadow:0 6px 16px rgba(0,0,0,.2);animation:cbPulse 2.4s ease-in-out infinite;}
@keyframes cbPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@media(max-width:640px){
  .course-banner{flex-wrap:wrap;padding:15px 15px 14px;}
  .course-banner .cb-btn{margin-left:0;width:100%;text-align:center;}
}
@media(max-width:640px){
  .duo{grid-template-columns:1fr;}
  .hero{padding:48px 16px 66px;}
  .pmeta{gap:6px;}
  .prog-mini{width:38px;}
  .money{grid-template-columns:1fr 1fr 1fr;gap:6px;}
}
</style>







