/* 台球云管家 - 官网首页 */
:root{--navy:#0b1220;--ink:#111827;--muted:#5b6b84;--line:#e6eaf2;--blue:#2563eb;--blue2:#1d4ed8;--green:#059669;--bg:#fff}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden}
a{text-decoration:none;color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:10px;padding:11px 22px;font-size:14px;cursor:pointer;transition:.2s;font-family:inherit;font-weight:600}
.btn-lg{padding:14px 30px;font-size:15px;border-radius:12px}
.btn-primary{background:linear-gradient(120deg,var(--blue2),var(--blue));color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(37,99,235,.42)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-outline{background:#fff;border:1.5px solid var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-block{width:100%}

/* 顶部导航 */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;gap:26px;padding:0 28px;height:64px;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
.site-nav.solid{border-bottom-color:var(--line);box-shadow:0 2px 16px rgba(15,23,42,.05)}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#3b82f6,#06b6d4);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.brand-name{font-weight:800;font-size:16.5px}
.nav-links{display:flex;gap:26px;font-size:14px;color:#475569}
.nav-links a{position:relative;padding:6px 0;transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--blue);transition:width .25s;border-radius:2px}
.nav-links a:hover::after{width:100%}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-actions .link{font-size:14px;color:#475569}
.nav-actions .link:hover{color:var(--blue)}
.nav-burger{display:none;border:none;background:none;cursor:pointer}
.nav-burger svg{width:22px;height:22px;fill:none;stroke:#334155;stroke-width:2;stroke-linecap:round}

/* Hero 轮播 */
.hero{position:relative;height:640px;margin-top:0;color:#fff;background:linear-gradient(140deg,#0b1220 0%,#12233f 45%,#0f3d33 100%);overflow:hidden}
.hero-slides{position:relative;height:100%}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s ease;display:flex;align-items:center}
.slide.active{opacity:1;visibility:visible}
.slide-inner{max-width:1160px;margin:0 auto;padding:80px 22px 0;width:100%;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.slide-copy .tag{display:inline-block;font-size:12.5px;letter-spacing:2px;padding:6px 14px;border:1px solid rgba(255,255,255,.3);border-radius:20px;color:#a5c8ff;margin-bottom:20px;background:rgba(37,99,235,.15)}
.slide-copy h1{font-size:46px;line-height:1.28;letter-spacing:1px;animation:heroUp .7s ease both}
.slide-copy h1 em{font-style:normal;background:linear-gradient(90deg,#60a5fa,#34d399);-webkit-background-clip:text;background-clip:text;color:transparent}
.slide-copy p{margin-top:16px;font-size:15.5px;line-height:1.9;color:#b6c2d6;max-width:460px;animation:heroUp .7s .12s ease both}
.slide-copy .cta{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;animation:heroUp .7s .22s ease both}
@keyframes heroUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.slide-visual{display:flex;justify-content:center;animation:heroUp .8s .25s ease both}
/* 指示点需落在深色背景上：白色波浪高约 60px，指示点需高于它 */
.hero-dots{position:absolute;bottom:92px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:5}
.hero-dots i{width:26px;height:5px;border-radius:3px;background:rgba(255,255,255,.25);cursor:pointer;transition:.3s}
.hero-dots i.on{background:#fff;width:40px}
.hero-wave{position:absolute;bottom:-2px;left:0;right:0;height:60px;background:#fff;clip-path:ellipse(70% 100% at 50% 100%)}

/* hero 视觉 mock */
.mock-window{width:440px;max-width:100%;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.45);color:#1f2733}
.mock-bar{display:flex;align-items:center;gap:6px;padding:11px 14px;background:#f1f5f9;border-bottom:1px solid #e6eaf2}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#e2e8f0}
.mock-bar i:first-child{background:#f87171}.mock-bar i:nth-child(2){background:#fbbf24}.mock-bar i:nth-child(3){background:#34d399}
.mock-bar span{margin-left:8px;font-size:11.5px;color:#8a94a6}
.mock-body{display:flex;height:230px}
.mock-side{width:54px;background:#0e1b2c;display:flex;flex-direction:column;gap:9px;padding:14px 10px}
.mock-side i{height:9px;border-radius:4px;background:#26344c}
.mock-side i.on{background:#2563eb}
.mock-main{flex:1;padding:14px;display:flex;flex-direction:column;gap:12px}
.mock-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.mock-cards b{background:#f8fafc;border-radius:8px;font-size:13px;padding:10px 4px;text-align:center;color:#2563eb}
.mock-chart{flex:1;display:flex;align-items:flex-end;gap:6px;padding:6px 2px 0}
.mock-chart i{flex:1;background:linear-gradient(180deg,#60a5fa,#2563eb);border-radius:4px 4px 0 0;animation:barUp 1s ease both;transform-origin:bottom}
@keyframes barUp{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.vs-card{width:400px;max-width:100%;background:#fff;color:#1f2733;border-radius:14px;padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.vs-row{display:flex;align-items:center;gap:12px;padding:10px 0}
.vs-row .ava{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:17px}
.ava.a{background:linear-gradient(135deg,#f59e0b,#f97316)}
.ava.b{background:linear-gradient(135deg,#3b82f6,#6366f1)}
.vs-row b{font-size:16px}
.vs-mid{text-align:center;font-size:12.5px;color:#8a94a6;padding:4px 0;border-top:1px dashed #e6eaf2;border-bottom:1px dashed #e6eaf2}
.sc{margin-left:auto;font-size:24px;font-weight:800}
.vs-actions{display:flex;gap:8px;margin-top:12px}
.pill{font-size:11.5px;background:#fffbeb;color:#d97706;border-radius:14px;padding:4px 11px}
.pill.dark{background:#f1f5f9;color:#64748b}
.seg{font-size:11.5px;border-radius:12px;padding:2.5px 9px;font-weight:600}
.seg.gold{background:#fef3c7;color:#92400e}
.seg.silver{background:#f1f5f9;color:#64748b}
.seg.plat{background:#ede9fe;color:#6d28d9}
.screen-card{width:420px;max-width:100%;background:linear-gradient(150deg,#101a30,#152a4a);border-radius:14px;padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.5);border:1px solid rgba(96,165,250,.25)}
.sc-title{font-size:15px;color:#93c5fd;margin-bottom:12px;letter-spacing:1px}
.sc-row{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;background:rgba(255,255,255,.05);margin-bottom:8px}
.sc-row.first{background:linear-gradient(90deg,rgba(251,191,36,.18),rgba(251,191,36,.04));border:1px solid rgba(251,191,36,.35)}
.sc-row .rk{width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;color:#e2e8f0}
.sc-row.first .rk{background:#f59e0b;color:#1f1300}
.sc-row b{color:#fff;font-size:15px}
.sc-row em{margin-left:auto;font-style:normal;color:#fbbf24;font-weight:800;font-size:17px}

/* 数据条 */
.stats{background:#fff;padding:34px 0 6px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{text-align:center;padding:22px 0;border-radius:14px;background:#f8fafc;transition:transform .2s}
.stat:hover{transform:translateY(-3px)}
.stat b{font-size:34px;font-weight:800;color:var(--blue2);font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:5px}

/* 区块 */
.section{padding:78px 0}
.section.alt{background:#f7f9fc}
.sec-head{text-align:center;margin-bottom:44px}
.sec-tag{display:inline-block;font-size:12.5px;color:var(--blue);background:#eff6ff;border-radius:16px;padding:5px 15px;letter-spacing:2px;margin-bottom:14px}
.sec-head h2{font-size:30px;letter-spacing:.5px}
.sec-head p{color:var(--muted);margin-top:10px;font-size:14.5px}

/* 功能卡 */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;transition:.25s}
.feat-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(15,23,42,.09);border-color:#c7d7f5}
.feat-icon{width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,#eff6ff,#e0edff);display:flex;align-items:center;justify-content:center;color:var(--blue);margin-bottom:16px;transition:.25s}
.feat-card:hover .feat-icon{background:linear-gradient(135deg,var(--blue),#60a5fa);color:#fff;transform:scale(1.06)}
.feat-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feat-card h3{font-size:16.5px;margin-bottom:9px}
.feat-card p{font-size:13px;color:var(--muted);line-height:1.8}

/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-card{position:relative;background:#fff;border-radius:16px;padding:30px 22px;border:1px solid var(--line);transition:.25s}
.flow-card:hover{border-color:#a7f3d0;box-shadow:0 16px 38px rgba(5,150,105,.1)}
.flow-no{font-size:38px;font-weight:800;background:linear-gradient(90deg,#d1fae5,#a7f3d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.flow-card h3{font-size:16.5px;margin:10px 0 8px}
.flow-card p{font-size:13px;color:var(--muted);line-height:1.8}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:960px;margin:0 auto}
.price-card{background-color:#fff;border:1.5px solid var(--line);border-radius:18px;padding:32px 28px;position:relative;text-align:center;
  /* 扫光带：默认停在卡片外，悬停时从左往右扫过（背景随圆角自动裁剪，不需要 overflow:hidden，避免裁掉悬浮的 hot-tag） */
  background-image:linear-gradient(105deg,transparent 32%,rgba(37,99,235,.07) 44%,rgba(96,165,250,.20) 50%,rgba(37,99,235,.07) 56%,transparent 68%);
  background-repeat:no-repeat;background-size:220% 100%;background-position:190% 0}
.price-card:hover{transform:translateY(-9px);border-color:#93b4f5;box-shadow:0 24px 52px rgba(15,23,42,.13);animation:cardShine 2.4s ease infinite}
@keyframes cardShine{0%{background-position:190% 0}42%{background-position:-90% 0}100%{background-position:-90% 0}}
.price-card .price b{display:inline-block;transition:transform .3s ease}
.price-card:hover .price b{transform:scale(1.07)}
.price-card:hover .btn-outline{background:linear-gradient(120deg,var(--blue2),var(--blue));color:#fff;border-color:transparent;box-shadow:0 8px 22px rgba(37,99,235,.32)}
.price-card.hot{border-color:var(--blue);animation:hotGlow 3s ease-in-out infinite}
.price-card.hot:hover{animation:cardShine 2.4s ease infinite,hotGlow 3s ease-in-out infinite}
@keyframes hotGlow{0%,100%{box-shadow:0 16px 44px rgba(37,99,235,.16)}50%{box-shadow:0 20px 56px rgba(37,99,235,.30)}}
.hot-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(90deg,var(--blue2),var(--blue));color:#fff;font-size:12px;border-radius:14px;padding:4px 16px;letter-spacing:1px}
.price-card h3{font-size:18px}
.price-card .pd{color:var(--muted);font-size:13px;margin:6px 0 18px}
.price{display:flex;align-items:baseline;justify-content:center;gap:7px;margin-bottom:22px}
.price b{font-size:44px;font-weight:800;color:var(--blue2);font-variant-numeric:tabular-nums}
.price span{color:var(--muted);font-size:13px}
.price-card ul{list-style:none;text-align:left;margin-bottom:26px;display:flex;flex-direction:column;gap:10px}
.price-card li{font-size:13.5px;color:#374151;padding-left:24px;position:relative}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.price-note{text-align:center;color:var(--muted);font-size:12.5px;margin-top:26px}

/* FAQ：双栏布局（左标题区 + 右问题列表，参照 Stripe/Linear 的帮助页结构，充分利用桌面宽度） */
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side h2{font-size:30px;letter-spacing:.5px;text-align:left}
.faq-side>p{color:var(--muted);margin-top:12px;font-size:14.5px;line-height:1.9;text-align:left}
.faq-side-card{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 22px 24px}
.faq-side-card b{display:block;font-size:16px}
.faq-side-card span{display:block;color:var(--muted);font-size:13px;line-height:1.8;margin:8px 0 16px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:12px;overflow:hidden;transition:.2s}
.faq-item[open]{border-color:#c7d7f5;box-shadow:0 10px 30px rgba(37,99,235,.07)}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 22px;font-size:15px;font-weight:600;display:flex;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-arrow{margin-left:auto;transition:transform .25s}
.faq-arrow svg{width:17px;height:17px;fill:none;stroke:#94a3b8;stroke-width:2;stroke-linecap:round}
.faq-item[open] .faq-arrow{transform:rotate(180deg)}
.faq-item p{padding:0 22px 18px;color:var(--muted);font-size:13.5px;line-height:1.9}
.faq-cta{text-align:center;background:linear-gradient(140deg,#0b1220,#14304f);color:#fff;border-radius:20px;padding:52px 24px;margin-top:40px}
.faq-cta h3{font-size:24px}
.faq-cta p{color:#9db1cc;margin:10px 0 22px;font-size:14px}

/* 页脚 */
.site-foot{background:#0b1220;color:#94a3b8;padding:52px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;padding-bottom:34px}
.site-foot .brand-name{color:#fff}
.foot-slogan{font-size:13px;margin-top:12px;line-height:1.8}
.site-foot b{color:#e2e8f0;font-size:14px;display:block;margin-bottom:13px}
.site-foot a{display:block;font-size:13px;margin-bottom:9px;transition:color .2s}
.site-foot a:hover{color:#fff}
.foot-bar{border-top:1px solid rgba(255,255,255,.08);text-align:center;padding:16px;font-size:12px;color:#64748b}

/* 滚动显现：用 translate 属性位移，避免与 :hover 的 transform 规则互相覆盖（transform 专留给悬停效果） */
.reveal{opacity:0;translate:0 26px;transition:opacity .6s ease var(--d,0ms),translate .6s ease var(--d,0ms),transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.reveal.in{opacity:1;translate:0 0}

/* 响应式 */
@media (max-width:960px){
  .slide-inner{grid-template-columns:1fr;padding-top:100px}
  .slide-visual{display:none}
  .feat-grid,.flow-grid{grid-template-columns:1fr 1fr}
  .price-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:30px}
  .faq-side{position:static}
  .faq-side h2,.faq-side>p{text-align:center}
  .nav-links{display:none}
  .nav-burger{display:block}
  .site-nav{padding:0 16px;gap:12px}
  .nav-actions .link{display:none}
  .nav-actions .btn{padding:9px 14px;font-size:13px}
}
@media (max-width:600px){
  .feat-grid,.flow-grid{grid-template-columns:1fr}
  .hero{height:700px}
  .slide-copy h1{font-size:32px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:10px}
  .stat b{font-size:26px}
  .section{padding:56px 0}
}