/* =============================================================================
   算力集市 · 本地改版体验版 共享样式
   设计参照：同橙算力超市（深色 + 橙色 + 网格/粒子背景 + 卡片式）
   配色可切换：默认橙，右上角可切品牌绿（localStorage: sj-accent）
   ============================================================================= */
:root{
  --primary:#ff6b00; --primary-2:#ff9a3c; --primary-dim:rgba(255,107,0,.14); --primary-line:rgba(255,107,0,.35);
  --bg:#070b12; --bg-1:#0b111b; --bg-2:#0f1622; --card:#111927; --card-2:#0d141f;
  --text:#eaf0fa; --text-2:#a9b6cc; --text-3:#6f7d94;
  --line:#1b2536; --line-2:#141d2b;
  --ok:#22c55e; --info:#38bdf8;
  --r:14px; --r-lg:20px; --max:1240px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;
}
html[data-accent="green"]{
  --primary:#00c46a; --primary-2:#20e488; --primary-dim:rgba(0,196,106,.14); --primary-line:rgba(0,196,106,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}

/* ---------- 背景 ---------- */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-fx .grid{position:absolute;inset:-2px;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%)}
.bg-fx .glow{position:absolute;width:900px;height:900px;border-radius:50%;filter:blur(120px);opacity:.22;
  background:radial-gradient(circle,var(--primary),transparent 65%)}
.bg-fx .glow.a{top:-380px;left:50%;transform:translateX(-50%)}
.bg-fx .glow.b{bottom:-520px;right:-260px;opacity:.14}
#stars{position:absolute;inset:0;width:100%;height:100%}

/* ---------- Header ---------- */
.hd{position:fixed;top:0;left:0;right:0;z-index:60;height:64px;display:flex;align-items:center;gap:12px;
  padding:0 24px;background:rgba(7,11,18,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}
.hd.on{background:rgba(7,11,18,.92);border-bottom-color:var(--line)}
.hd .logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.2px}
.hd .logo i{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-style:normal;font-size:16px;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 6px 18px var(--primary-dim)}
.hd nav{display:flex;align-items:center;gap:4px;margin-left:26px}
.hd nav a{font-size:14px;color:var(--text-2);padding:7px 13px;border-radius:9px;transition:.2s}
.hd nav a:hover{color:var(--text);background:var(--card)}
.hd nav a.on{color:var(--primary);background:var(--primary-dim)}
.hd .right{margin-left:auto;display:flex;align-items:center;gap:10px}
.iconbtn{border:1px solid var(--line);background:var(--card);color:var(--text-2);width:36px;height:36px;border-radius:10px;cursor:pointer;font-size:14px}
.iconbtn:hover{color:var(--primary);border-color:var(--primary-line)}
.menu-btn{display:none}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:11px;font-weight:600;font-size:14px;padding:10px 20px;
  border:1px solid transparent;cursor:pointer;transition:.2s;font-family:inherit;white-space:nowrap}
.btn-p{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 26px var(--primary-dim)}
.btn-p:hover{transform:translateY(-1px);box-shadow:0 14px 34px var(--primary-line)}
.btn-g{border-color:var(--line);background:var(--card);color:var(--text)}
.btn-g:hover{border-color:var(--primary-line);color:var(--primary)}
.btn-sm{padding:8px 15px;font-size:13px;border-radius:9px}

/* ---------- 区块 ---------- */
main{position:relative;z-index:1}
section{padding:86px 0}
.sec-head{text-align:center;margin-bottom:46px}
.sec-head h2{font-size:34px;font-weight:800;letter-spacing:-.6px}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px}
.sec-head .line{width:56px;height:3px;border-radius:3px;margin:18px auto 0;background:linear-gradient(90deg,var(--primary),var(--primary-2))}
.sec-more{text-align:center;margin-top:38px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 70px;text-align:center}
.hero .badge{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--text-2);
  border:1px solid var(--line);background:rgba(17,25,39,.72);padding:7px 16px;border-radius:999px;backdrop-filter:blur(6px)}
.hero .badge b{color:var(--primary);font-weight:700}
.hero .badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
.hero h1{margin:26px 0 0;font-size:76px;line-height:1.05;font-weight:800;letter-spacing:-2px;
  background:linear-gradient(120deg,#fff 20%,var(--primary-2) 55%,var(--primary) 85%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{max-width:760px;margin:22px auto 0;color:var(--text-2);font-size:17px}
.hero .cta{margin-top:34px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .cta .btn{padding:14px 30px;font-size:15px;border-radius:13px}
.stats{max-width:1000px;margin:64px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stats .st{background:linear-gradient(180deg,rgba(17,25,39,.85),rgba(13,20,31,.6));border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 18px;transition:.25s}
.stats .st:hover{transform:translateY(-4px);border-color:var(--primary-line)}
.stats .st b{display:block;font-size:34px;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(120deg,var(--primary-2),var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent}
.stats .st span{display:block;margin-top:6px;color:var(--text-3);font-size:13.5px}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:18px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:linear-gradient(180deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;display:flex;flex-direction:column;transition:.25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);border-color:var(--primary-line);box-shadow:var(--shadow)}
.card::before{content:'';position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,var(--primary-line),transparent);opacity:0;transition:.25s}
.card:hover::before{opacity:1}
.card .top{display:flex;align-items:center;gap:12px;min-width:0}
.card .ico{width:46px;height:46px;border-radius:13px;flex:0 0 46px;display:grid;place-items:center;font-size:22px;
  background:var(--primary-dim);border:1px solid var(--line)}
.card h3{font-size:16.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .meta{color:var(--text-3);font-size:12.5px;margin-top:2px}
.card .desc{color:var(--text-2);font-size:13.5px;margin:14px 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px;flex:1}
.card .acts{display:flex;gap:9px;margin-top:auto}
.card .acts .btn{flex:1;justify-content:center}
.tags{display:flex;gap:6px;margin-bottom:12px}
.tag{font-size:11px;font-weight:600;padding:2px 9px;border-radius:999px;border:1px solid var(--line);color:var(--text-3)}
.tag.hot{color:var(--primary);border-color:var(--primary-line);background:var(--primary-dim)}

/* ---------- 特性 ---------- */
.feat{display:flex;gap:16px;align-items:flex-start;padding:26px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(17,25,39,.7),rgba(13,20,31,.45))}
.feat .n{width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:grid;place-items:center;font-size:20px;background:var(--primary-dim);border:1px solid var(--line)}
.feat h3{font-size:16px;font-weight:700;margin-bottom:6px}
.feat p{color:var(--text-2);font-size:13.5px}

/* ---------- 价格 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;background:linear-gradient(180deg,var(--card),var(--card-2));display:flex;flex-direction:column}
.plan.hot{border-color:var(--primary-line);box-shadow:0 18px 50px var(--primary-dim);position:relative}
.plan.hot::after{content:'推荐';position:absolute;top:-11px;right:20px;font-size:11.5px;font-weight:700;color:#fff;padding:3px 11px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2))}
.plan h3{font-size:17px;font-weight:700}
.plan .price{margin:16px 0 4px;font-size:38px;font-weight:800;letter-spacing:-1px}
.plan .price i{font-size:15px;font-weight:600;font-style:normal;color:var(--text-3)}
.plan .tip{color:var(--text-3);font-size:13px}
.plan ul{list-style:none;margin:20px 0 24px;display:grid;gap:10px}
.plan li{color:var(--text-2);font-size:13.5px;display:flex;gap:9px;align-items:flex-start}
.plan li::before{content:'✓';color:var(--primary);font-weight:700}
.plan .btn{margin-top:auto;justify-content:center}

/* ---------- 计费说明表 ---------- */
.tablebox{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;background:var(--bg-2);color:var(--text);font-weight:600;padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:13px 16px;color:var(--text-2);border-bottom:1px solid var(--line-2)}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(255,255,255,.02)}
code{font-family:var(--mono);font-size:12.5px;background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:var(--primary-2)}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;display:grid;gap:12px}
.q{border:1px solid var(--line);border-radius:var(--r);background:rgba(17,25,39,.5);overflow:hidden}
.q>button{width:100%;display:flex;align-items:center;gap:12px;justify-content:space-between;background:transparent;border:0;
  color:var(--text);font-family:inherit;font-size:15px;font-weight:600;padding:17px 20px;cursor:pointer;text-align:left}
.q>button i{font-style:normal;color:var(--primary);transition:.2s}
.q.on>button i{transform:rotate(45deg)}
.q .a{display:none;padding:0 20px 18px;color:var(--text-2);font-size:14px}
.q.on .a{display:block}

/* ---------- CTA 横幅 ---------- */
.band{border:1px solid var(--primary-line);border-radius:24px;padding:52px 40px;text-align:center;
  background:radial-gradient(ellipse at 50% 0%,var(--primary-dim),transparent 70%),linear-gradient(180deg,var(--card),var(--card-2))}
.band h2{font-size:32px;font-weight:800;letter-spacing:-.6px}
.band p{color:var(--text-2);margin:12px auto 26px;max-width:640px}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:56px 0 34px;background:linear-gradient(180deg,transparent,rgba(11,17,27,.7))}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.fgrid h4{font-size:14px;font-weight:700;margin-bottom:14px}
.fgrid a,.fgrid p{display:block;color:var(--text-3);font-size:13.5px;margin-bottom:9px}
.fgrid a:hover{color:var(--primary)}
.fbot{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;color:var(--text-3);font-size:12.5px}
.fbot a{color:var(--text-3)}
.fbot a:hover{color:var(--primary)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(max-width:1080px){
  .g4{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(2,1fr)} .plans{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr} .hero h1{font-size:56px}
}
@media(max-width:760px){
  .hd nav{display:none} .menu-btn{display:grid}
  .g4,.g3{grid-template-columns:1fr} .stats{grid-template-columns:repeat(2,1fr)}
  .hero{padding:120px 0 40px} .hero h1{font-size:40px} .hero .sub{font-size:15px}
  section{padding:60px 0} .sec-head h2{font-size:26px} .fgrid{grid-template-columns:1fr}
  .band{padding:36px 22px} .band h2{font-size:24px}
}