/* ============================================================
   实况起点数据中心 · 静态官网样式
   深色 / 霓虹青品红 / 桌面优先 + 响应式
   ============================================================ */
:root{
  --bg:#080c22;
  --bg-2:#0c1230;
  --bg-3:#101838;
  --cyan:#00e5ff;
  --cyan-d:#0aa8c0;
  --magenta:#ff3d8a;
  --purple:#a855f7;
  --green:#10b981;
  --amber:#f59e0b;
  --text:#e8edf7;
  --muted:#94a2bd;
  --faint:#6b7896;
  --card:rgba(22,30,64,.55);
  --card-2:rgba(30,40,82,.7);
  --border:rgba(120,150,220,.16);
  --border-cyan:rgba(0,229,255,.28);
  --radius:16px;
  --shadow:0 18px 50px rgba(2,6,23,.55);
  --maxw:1200px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,-apple-system,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 背景氛围层（固定，不随滚动） */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 500px at 12% -8%,rgba(0,229,255,.14),transparent 60%),
    radial-gradient(800px 520px at 92% -4%,rgba(255,61,138,.13),transparent 60%),
    radial-gradient(900px 700px at 50% 118%,rgba(168,85,247,.14),transparent 62%),
    var(--bg);
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.section{padding:92px 0;}
.section-tight{padding:64px 0;}

/* 区块标题 */
.sec-head{max-width:720px;margin:0 auto 52px;text-align:center;}
.sec-kicker{
  display:inline-block;font-size:13px;letter-spacing:.22em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.sec-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.28;letter-spacing:.01em;}
.sec-sub{margin-top:16px;color:var(--muted);font-size:16px;}

/* ============================================================
   顶部导航
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(8,12,34,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;letter-spacing:.02em;}
/* 2026-10-31：图标改透明底后，容器不能再有圆角裁切与方框投影
   （否则白星背后挂着一个方形青绿光斑）。改用 drop-shadow，光晕沿星形轮廓走。 */
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  line-height:0;
}
.brand-mark img{
  width:100%;height:100%;display:block;
  filter:drop-shadow(0 4px 12px rgba(0,229,255,.45));
}
.brand small{display:block;font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.12em;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{font-size:15px;color:var(--muted);font-weight:500;transition:color .2s;}
.nav-links a:hover{color:var(--cyan);}
.nav-cta{
  padding:9px 20px;border-radius:11px;font-size:14px;font-weight:700;color:#04122a;
  background:linear-gradient(90deg,var(--cyan),#59e6ff);
  box-shadow:0 8px 22px rgba(0,229,255,.3);
}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:10px;
  width:42px;height:42px;color:var(--text);font-size:20px;cursor:pointer;}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;padding:168px 0 96px;}
/* 2026-10-30：右侧 6 张卡面图已移除，改为单列并限宽，避免长文本行宽过大影响可读性 */
.hero-grid{display:block;max-width:820px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:999px;
  border:1px solid var(--border-cyan);background:rgba(0,229,255,.07);
  font-size:13px;color:#b8f4ff;margin-bottom:26px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);}
.hero h1{font-size:clamp(34px,5.2vw,58px);line-height:1.14;font-weight:900;letter-spacing:.01em;}
.hero h1 .grad{
  background:linear-gradient(92deg,var(--cyan) 10%,#7cc4ff 45%,var(--magenta) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{margin-top:24px;font-size:17.5px;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 28px;border-radius:13px;
  font-size:15.5px;font-weight:700;cursor:pointer;border:1px solid transparent;transition:transform .18s,box-shadow .18s;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{color:#04122a;background:linear-gradient(90deg,var(--cyan),#5bdcff);
  box-shadow:0 12px 30px rgba(0,229,255,.32);}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.04);border-color:var(--border);}
.btn-ghost:hover{border-color:var(--border-cyan);color:var(--cyan);}

/* Hero 右侧：堆叠卡面 */

/* 意见反馈横幅 */
.feedback-band{display:flex;align-items:center;gap:18px;
  background:linear-gradient(120deg,rgba(0,229,255,.12),rgba(124,92,255,.12) 55%,rgba(255,61,138,.12));
  border:1px solid var(--border);border-radius:var(--radius);padding:20px 26px;}
.fb-ic{flex:none;width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,#00e5ff,#7c5cff);}
.fb-ic svg{width:26px;height:26px;fill:none;stroke:#04122a;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.fb-text h4{font-size:18px;font-weight:800;color:#fff;margin:0 0 4px;}
.fb-text p{margin:0;color:var(--text-2);font-size:14px;}
.fb-mail{margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:15px;
  color:#04122a;background:linear-gradient(135deg,#00e5ff,#7c5cff);padding:12px 20px;border-radius:12px;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease;}
.fb-mail:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,229,255,.35);}
@media(max-width:760px){.feedback-band{flex-direction:column;align-items:flex-start;gap:12px;}
  .fb-mail{margin-left:0;width:100%;justify-content:center;}}

/* 数据条 */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
}
.stat-cell{background:var(--card-2);padding:30px 20px;text-align:center;}
.stat-num{font-size:clamp(28px,3.4vw,40px);font-weight:900;line-height:1;
  background:linear-gradient(90deg,var(--cyan),#7cc4ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-lab{margin-top:10px;font-size:14px;color:var(--muted);}

/* ============================================================
   功能特色
   ============================================================ */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feat{
  position:relative;padding:30px 28px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--border);
  transition:transform .22s,border-color .22s,box-shadow .22s;overflow:hidden;
}
.feat:hover{transform:translateY(-6px);border-color:var(--border-cyan);
  box-shadow:0 22px 46px rgba(2,8,30,.5);}
.feat-ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(0,229,255,.18),rgba(255,61,138,.16));
  border:1px solid var(--border-cyan);}
.feat-ic svg{width:25px;height:25px;stroke:var(--cyan);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.feat h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.feat p{font-size:14.5px;color:var(--muted);}

/* ============================================================
   球星展示
   ============================================================ */
/* ============ 贴身助教 8 卡 ============ */
.pa-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:14px;}
.pa-card{position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:16px;padding:22px 20px 20px;overflow:hidden;
  transition:transform .25s,border-color .25s,box-shadow .25s;}
.pa-card:hover{transform:translateY(-4px);border-color:var(--border-cyan);
  box-shadow:0 12px 32px rgba(0,229,255,.12);}
.pa-ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(0,229,255,.1);border:1px solid var(--border-cyan);color:var(--cyan);}
.pa-ic svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;}
.pa-no{position:absolute;right:16px;top:13px;font-size:36px;font-weight:800;line-height:1;
  color:rgba(255,255,255,.06);letter-spacing:1px;}
.pa-card h3{font-size:17px;margin:15px 0 8px;}
.pa-card p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ============ 数据更新横幅 ============ */
.notice-band{margin-top:28px;border-radius:16px;padding:22px 26px;text-align:center;
  background:linear-gradient(120deg,rgba(0,229,255,.10),rgba(168,85,247,.10));
  border:1px solid var(--border);}
.notice-band p{margin:4px 0;font-size:15.5px;color:var(--muted);}
.notice-band strong{color:var(--cyan);font-weight:700;}

/* ============================================================
   多端覆盖
   ============================================================ */
.platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.plat{padding:30px 24px;text-align:center;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--border);}
.plat-ic{width:56px;height:56px;margin:0 auto 18px;border-radius:14px;display:grid;place-items:center;
  background:rgba(0,229,255,.1);border:1px solid var(--border-cyan);}
.plat-ic svg{width:28px;height:28px;stroke:var(--cyan);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.plat h4{font-size:17px;font-weight:700;}
.plat p{font-size:13.5px;color:var(--muted);margin-top:8px;}
.plat .tagline{display:inline-block;margin-top:12px;font-size:12px;color:var(--amber);
  border:1px solid rgba(245,158,11,.4);padding:3px 11px;border-radius:999px;}
.plat a.tagline{cursor:pointer;text-decoration:none;transition:.2s;}
.plat a.tagline:hover{background:rgba(245,158,11,.18);border-color:var(--amber);}

/* ============================================================
   公测版本说明
   ============================================================ */
.beta-card{
  border:1px solid var(--border);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(30,40,82,.72),rgba(22,30,64,.55));
  padding:34px 34px 30px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.beta-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
}
.beta-head{max-width:740px;margin-bottom:26px;}
.beta-kicker{font-size:12px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;}
.beta-head h3{font-size:27px;margin:10px 0;}
.beta-head p{color:var(--muted);font-size:16.5px;}
.beta-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 28px;}
.beta-item{display:flex;gap:14px;align-items:flex-start;}
.beta-ic{flex:0 0 auto;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;}
.beta-ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;}
.beta-item:nth-child(1) .beta-ic{background:rgba(0,229,255,.1);border:1px solid var(--border-cyan);color:var(--cyan);}
.beta-item:nth-child(2) .beta-ic{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.35);color:var(--amber);}
.beta-item:nth-child(3) .beta-ic{background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.35);color:var(--purple);}
.beta-item:nth-child(4) .beta-ic{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.35);color:var(--green);}
.beta-item h4{font-size:19px;margin-bottom:5px;}
.beta-item p{font-size:16px;color:var(--muted);line-height:1.7;}
@media(max-width:680px){
  .beta-card{padding:26px 20px 22px;}
  .beta-grid{grid-template-columns:1fr;gap:16px;}
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{max-width:820px;margin:0 auto;}
.faq{border:1px solid var(--border);border-radius:13px;margin-bottom:14px;background:var(--card);overflow:hidden;}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:20px 24px;background:none;border:none;color:var(--text);
  font-size:16px;font-weight:600;cursor:pointer;text-align:left;font-family:inherit;}
.faq-q .ic{color:var(--cyan);font-size:22px;transition:transform .25s;flex-shrink:0;}
.faq.open .faq-q .ic{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:14.5px;}

/* 最终 CTA */
.cta-band{
  position:relative;border-radius:24px;padding:64px 48px;text-align:center;overflow:hidden;
  background:linear-gradient(120deg,rgba(0,229,255,.12),rgba(168,85,247,.12) 50%,rgba(255,61,138,.12));
  border:1px solid var(--border-cyan);
}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);font-weight:800;}
.cta-band p{margin:16px auto 30px;color:var(--muted);max-width:560px;}

/* ============================================================
   页脚
   ============================================================ */
.footer{border-top:1px solid var(--border);padding:64px 0 34px;margin-top:40px;
  background:rgba(6,9,26,.6);}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-about p{margin-top:16px;font-size:14px;color:var(--muted);max-width:320px;}
.foot-col h5{font-size:14px;font-weight:700;margin-bottom:16px;color:#cdd7ea;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--muted);transition:color .2s;}
.foot-col a:hover{color:var(--cyan);}
.foot-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;}
.copy{font-size:13px;color:var(--faint);}
.beian{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);
  transition:color .2s;}
.beian:hover{color:var(--cyan);}
.beian .police{margin-left:14px;}

/* ============================================================
   内容页（隐私 / 协议）
   ============================================================ */
.doc{padding:130px 0 90px;}
.doc-card{max-width:880px;margin:0 auto;background:var(--card);border:1px solid var(--border);
  border-radius:20px;padding:48px 52px;}
.doc-card h1{font-size:28px;font-weight:800;margin-bottom:8px;}
.doc-update{color:var(--faint);font-size:13px;margin-bottom:32px;}
.doc-card h2{font-size:19px;font-weight:700;margin:34px 0 12px;color:#dfe7f5;}
.doc-card h3{font-size:16px;font-weight:700;margin:22px 0 8px;color:#e6ecf7;}
.doc-card p{font-size:15px;color:var(--muted);margin-bottom:12px;}
.doc-card ul{margin:0 0 14px 4px;}
.doc-card ul li{position:relative;padding-left:20px;font-size:15px;color:var(--muted);margin-bottom:9px;}
.doc-card ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);}
.doc-card a.inline{color:var(--cyan);text-decoration:underline;}
.crumbs{font-size:13px;color:var(--faint);margin-bottom:22px;}
.crumbs a:hover{color:var(--cyan);}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr);}
  .platforms{grid-template-columns:repeat(2,1fr);}
  /* 平台卡为奇数张时，最后一张横跨整行，避免 2+1 留空位（2026-10-30 删 iOS 卡后由 4→3） */
  .plat:last-child:nth-child(odd){grid-column:1/-1;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:680px){
  .wrap{padding:0 18px;}
  .section{padding:64px 0;}
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,12,34,.97);border-bottom:1px solid var(--border);
    padding:10px 18px 20px;display:none;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 6px;font-size:16px;border-bottom:1px solid var(--border);}
  .nav-cta{margin-top:14px;text-align:center;}
  .nav-toggle{display:block;}
  .hero{padding:128px 0 64px;}
  .stats-bar{grid-template-columns:repeat(2,1fr);}
  .feat-grid{grid-template-columns:1fr;}
  .platforms{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:44px 24px;}
  .doc-card{padding:32px 24px;}
}

/* ============================================================
   首页「全新优化 · What's New」版块
   ============================================================ */
.wn-card{position:relative;background:var(--card-2);border:1px solid var(--border);
  border-radius:22px;padding:42px 40px 38px;box-shadow:var(--shadow);overflow:hidden;}
.wn-card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--purple),var(--magenta));}
.wn-head{max-width:780px;margin-bottom:30px;}
.wn-kicker{font-size:12px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;}
.wn-head h3{font-size:clamp(24px,3vw,33px);margin:10px 0;}
.wn-head p{color:var(--muted);font-size:16.5px;}
.wn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.wn-item{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px 20px;
  transition:transform .25s ease,border-color .25s ease;}
.wn-item:hover{transform:translateY(-4px);border-color:var(--border-cyan);}
.wn-ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;}
.wn-ic svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;}
.wn-item h4{font-size:18px;margin-bottom:7px;}
.wn-item p{font-size:15px;color:var(--muted);line-height:1.7;}
.wn-item:nth-child(1) .wn-ic{background:rgba(0,229,255,.1);border:1px solid var(--border-cyan);color:var(--cyan);}
.wn-item:nth-child(2) .wn-ic{background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.35);color:var(--purple);}
.wn-item:nth-child(3) .wn-ic{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.35);color:var(--green);}
.wn-item:nth-child(4) .wn-ic{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.35);color:var(--amber);}
.wn-item:nth-child(5) .wn-ic{background:rgba(255,61,138,.1);border:1px solid rgba(255,61,138,.35);color:var(--magenta);}
/* 第 6 格：渐变体验入口，凑齐 3×2 / 2×3 / 1×6 整齐布局 */
.wn-cta-cell{display:flex;flex-direction:column;justify-content:center;gap:12px;
  border-radius:16px;padding:24px 22px;color:#04122a;
  background:linear-gradient(135deg,#00e5ff 0%,#7c5cff 52%,#ff3d8a 100%);}
.wn-cta-cell h4{font-size:20px;color:#04122a;margin:0;}
.wn-cta-cell p{font-size:14.5px;color:rgba(4,18,42,.85);line-height:1.6;margin:0;}
.wn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:4px;
  padding:12px 18px;border-radius:12px;font-size:15.5px;font-weight:800;text-decoration:none;
  background:#04122a;color:#fff;}
.wn-btn.wn-btn-line{background:rgba(4,18,42,.1);color:#04122a;border:1.5px solid rgba(4,18,42,.6);margin-top:0;}
@media (max-width:980px){
  .wn-grid{grid-template-columns:repeat(2,1fr);}
  .wn-card{padding:32px 22px 28px;}
  .pa-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
}
@media (max-width:640px){
  .wn-grid{grid-template-columns:1fr;}
  .wn-card{padding:26px 18px 24px;}
  .pa-grid{grid-template-columns:1fr;}
  .notice-band{padding:18px 16px;}
}