/* ==========================================================
   码上升盲 · 官网/入口页
   ========================================================== */
:root{
  --bg:#050a12;--bg2:#0a1322;--panel:#0c1626;--panel2:#111f35;
  --line:rgba(150,190,255,.13);--line2:rgba(150,190,255,.24);
  --text:#eef4ff;--muted:#98abc6;--dim:#607694;
  --red:#ff3b4d;--red2:#ff7a4f;--gold:#f6c667;--gold2:#ffe3a6;
  --green:#2ee6a8;--blue:#4ea1ff;--violet:#a78bfa;
  --max:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{color:var(--text);background:
  radial-gradient(900px 600px at 85% -5%,rgba(255,59,77,.16),transparent 60%),
  radial-gradient(800px 500px at 5% 8%,rgba(78,161,255,.11),transparent 58%),
  radial-gradient(700px 500px at 50% 100%,rgba(246,198,103,.07),transparent 60%),
  linear-gradient(180deg,#071020,#050a12 60%);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.wrap{width:min(var(--max),calc(100% - 44px));margin:0 auto}
::selection{background:rgba(255,59,77,.35)}

/* header */
header{position:sticky;top:0;z-index:60;backdrop-filter:blur(18px);background:rgba(5,10,18,.72);border-bottom:1px solid rgba(150,190,255,.09)}
.nav{display:flex;align-items:center;gap:14px;height:68px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand img{width:38px;height:38px;object-fit:cover;border-radius:11px;border:1px solid var(--line2);background:#0b1526}
.brand b{font-size:17px;letter-spacing:.5px;white-space:nowrap}
.brand small{display:block;font-size:12px;color:var(--dim);letter-spacing:1.4px;font-weight:400;margin-top:2px}
.nav-links{display:flex;gap:6px;margin-left:22px}
.nav-links a{padding:8px 12px;font-size:13px;color:var(--muted);border-radius:9px}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-cta{margin-left:auto;display:flex;gap:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:42px;padding:0 18px;border-radius:11px;border:1px solid var(--line2);background:rgba(255,255,255,.04);font-size:13.5px;font-weight:600;transition:.16s;white-space:nowrap}
.btn:hover{transform:translateY(-1px);border-color:rgba(246,198,103,.45)}
.btn.primary{background:linear-gradient(135deg,var(--red),var(--red2));border-color:transparent;color:#fff;box-shadow:0 12px 30px rgba(255,59,77,.28)}
.btn.gold{background:linear-gradient(135deg,var(--gold),var(--gold2));border-color:transparent;color:#241503;box-shadow:0 12px 30px rgba(246,198,103,.18)}
.btn.ghost{background:rgba(255,255,255,.03)}
.btn.lg{height:50px;padding:0 24px;font-size:15px;border-radius:13px}
@media(max-width:820px){.nav-links{display:none}.nav-cta .btn.ghost{display:none}.nav-cta .btn{height:38px;padding:0 13px;font-size:12.5px}}

/* hero */
.hero{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;padding:78px 0 54px}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--gold);border:1px solid rgba(246,198,103,.28);background:rgba(246,198,103,.07);border-radius:30px;padding:7px 13px;letter-spacing:.6px}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
.hero h1{font-size:clamp(36px,4.5vw,62px);line-height:1.14;letter-spacing:-1.2px;margin:18px 0 16px;font-weight:800}
.hero h1 em{font-style:normal;background:linear-gradient(92deg,#ff5c66 0%,#ff9a62 48%,#f6c667 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero p{color:var(--muted);font-size:15.5px;line-height:1.95;max-width:35em}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;color:var(--dim);font-size:12px}
.hero-note span{display:flex;align-items:center;gap:6px}
.hero-note b{color:var(--muted);font-weight:500}
.hero-visual{position:relative}
.tv{position:relative;padding:10px;border-radius:18px;background:linear-gradient(150deg,#1a273b,#080f1a);border:1px solid rgba(246,198,103,.28);box-shadow:0 40px 100px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.04) inset}
.tv::before{content:"";position:absolute;inset:-1px;border-radius:18px;background:linear-gradient(120deg,rgba(255,59,77,.35),transparent 35%,transparent 65%,rgba(246,198,103,.3));z-index:-1;filter:blur(14px);opacity:.55}
.tv img{border-radius:10px;width:100%;aspect-ratio:16/9;object-fit:cover}
.phone{position:absolute;right:-22px;bottom:-40px;width:168px;border-radius:22px;border:5px solid #17233a;box-shadow:0 30px 70px rgba(0,0,0,.65);overflow:hidden;background:#0a1320}
.phone img{width:100%;display:block}
.phone::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:44px;height:5px;border-radius:5px;background:#0a1320}
@media(max-width:960px){
  .hero{grid-template-columns:1fr;gap:38px;padding:52px 0 34px}
  .phone{display:none}
  .hero-visual{max-width:680px}
}
@media(max-width:520px){
  .hero h1{letter-spacing:-.6px}
  .hero-actions .btn{flex:1;min-width:140px}
}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:12px 0 70px}
.stat{border:1px solid var(--line);background:linear-gradient(180deg,rgba(20,34,56,.55),rgba(10,19,34,.55));border-radius:14px;padding:18px 16px}
.stat b{display:block;font-size:26px;letter-spacing:-.5px;background:linear-gradient(120deg,#fff,#bcd2f2);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{display:block;font-size:12px;color:var(--dim);margin-top:5px;letter-spacing:.4px}
@media(max-width:760px){.stats{grid-template-columns:1fr 1fr;margin-bottom:52px}}

/* section */
section{padding:0 0 78px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);letter-spacing:-.6px}
.sec-head p{color:var(--muted);font-size:13.5px;line-height:1.8;margin-top:8px;max-width:44em}
.kicker{font-size:12px;color:var(--gold);letter-spacing:3px;margin-bottom:10px;font-weight:600}

/* feature grid */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.feat{position:relative;border:1px solid var(--line);border-radius:16px;padding:21px 20px;background:linear-gradient(180deg,rgba(18,32,53,.62),rgba(9,17,30,.7));overflow:hidden}
.feat::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(246,198,103,.11),transparent 68%)}
.feat .ico{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(255,59,77,.1);border:1px solid rgba(255,90,100,.22);margin-bottom:14px;font-size:18px}
.feat h3{font-size:15.5px;margin-bottom:7px}
.feat p{font-size:12.5px;color:var(--muted);line-height:1.8}
@media(max-width:900px){.features{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.features{grid-template-columns:1fr}}

/* templates */
.tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.tpl{position:relative;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#0a1220;transition:.2s}
.tpl:hover{transform:translateY(-3px);border-color:rgba(246,198,103,.45);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.tpl img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;opacity:.94}
.tpl .cap{position:absolute;left:0;right:0;bottom:0;padding:22px 12px 10px;background:linear-gradient(0deg,rgba(4,8,14,.92),transparent);display:flex;justify-content:space-between;align-items:center}
.tpl .cap b{font-size:12.5px}
.tpl .cap span{font-size:12px;color:var(--gold);border:1px solid rgba(246,198,103,.3);border-radius:20px;padding:2px 7px}
@media(max-width:760px){.tpl-grid{grid-template-columns:1fr 1fr}.tpl:nth-child(9){display:none}.sec-head{display:block}.sec-head>.btn{margin-top:12px}}
.foot .brand img{object-fit:cover}
@media(max-width:460px){.tpl-grid{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;counter-reset:st}
.step{position:relative;border:1px solid var(--line);border-radius:16px;padding:24px 20px 20px;background:linear-gradient(160deg,rgba(20,34,56,.55),rgba(8,15,26,.7))}
.step .n{font-family:'Coalition','myfont',sans-serif;font-size:34px;line-height:1.18;padding-bottom:5px;color:rgba(246,198,103,.9);margin-bottom:12px}
.step h3{font-size:15px;margin-bottom:7px}
.step p{font-size:12.5px;color:var(--muted);line-height:1.85}
.step .tag{display:inline-block;margin-top:12px;font-size:12px;color:var(--gold);border:1px solid rgba(246,198,103,.24);background:rgba(246,198,103,.06);padding:3px 8px;border-radius:20px}
@media(max-width:760px){.steps{grid-template-columns:1fr}}

/* cta */
.cta{position:relative;border:1px solid rgba(246,198,103,.24);border-radius:22px;padding:44px 38px;background:
  radial-gradient(600px 300px at 15% 20%,rgba(255,59,77,.18),transparent 62%),
  radial-gradient(600px 300px at 90% 90%,rgba(246,198,103,.12),transparent 62%),
  linear-gradient(140deg,#15233a,#0a1220);overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta h2{font-size:clamp(22px,2.6vw,32px);letter-spacing:-.5px}
.cta p{color:var(--muted);font-size:13px;margin-top:8px}
.cta .btn{flex:0 0 auto}
@media(max-width:620px){.cta{padding:30px 22px}.cta .actions{width:100%;display:flex;gap:8px}.cta .btn{flex:1}}

/* footer */
footer{border-top:1px solid rgba(150,190,255,.09);padding:26px 0 40px;color:var(--dim);font-size:12px}
.foot{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:16px;align-items:center}
.foot-links a{padding:5px 4px;display:inline-block}
.foot a:hover{color:var(--gold)}
.green{color:var(--green)}