/* ===== Token ===== */
:root{
  --bg:#070C1A;
  --bg-2:#0A1124;
  --panel:#0E1630;
  --line:rgba(143,190,255,.14);
  --line-soft:rgba(143,190,255,.07);
  --ink:#EAF1FF;
  --ink2:#9FADD0;
  --ink3:#68789E;
  --cyan:#3CE0D4;
  --gold:#F2C14E;
  --violet:#7B6CFF;
  --ok:#3CE0D4;
  --no:#54627F;
  --num:"Rajdhani","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","Segoe UI","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ===== 导航 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(7,12,26,.88);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-soft);
}
.nav-in{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand-logo{width:38px;height:38px;border-radius:9px}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.5px}
.brand-name small{display:block;font-size:10px;font-weight:500;color:var(--ink3);letter-spacing:2.5px;line-height:1.2}
.nav-links{display:none;align-items:center;gap:26px}
.nav-link{font-size:14px;color:var(--ink2)}
.nav-link:hover{color:var(--cyan)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:700;color:#051018;
  background:var(--cyan);border-radius:8px;padding:8px 14px;
  transition:background .15s;
}
.nav-cta:hover{background:#5DEBE0}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;background:none;border:1px solid var(--line);border-radius:8px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:0 auto;transition:transform .2s,opacity .2s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  display:none;background:var(--bg-2);border-bottom:1px solid var(--line-soft);
  padding:10px 20px 16px;
}
.mobile-menu a{display:block;padding:10px 4px;font-size:15px;color:var(--ink2);border-bottom:1px solid var(--line-soft)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a:hover{color:var(--cyan)}

/* ===== 通用区块 ===== */
.sec{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:42px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:2.5px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--cyan)}
.sec-title{font-size:clamp(24px,3.4vw,32px);font-weight:900;line-height:1.3}
.sec-sub{color:var(--ink2);font-size:15px;margin-top:10px}

/* ===== Hero ===== */
.hero{padding:120px 0 64px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(600px 380px at 82% 8%,rgba(59,224,212,.10),transparent 60%),
    radial-gradient(520px 360px at 8% 100%,rgba(123,108,255,.10),transparent 60%);
}
.hero-in{display:grid;gap:44px;align-items:center;position:relative}
.eyebrow{
  display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink2);
  border:1px solid var(--line);background:var(--panel);border-radius:999px;
  padding:6px 14px;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(60,224,212,.8)}
.eyebrow b{color:var(--gold);font-family:var(--num);font-size:14px}
.h1{font-size:clamp(34px,6vw,54px);font-weight:900;line-height:1.18;letter-spacing:.5px}
.h1 em{font-style:normal;color:var(--cyan)}
.lead{color:var(--ink2);font-size:16px;margin:18px 0 28px;max-width:520px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;border-radius:10px;padding:13px 22px;
  transition:transform .15s,box-shadow .15s,background .15s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--cyan),#2BBFA8);color:#04100E;box-shadow:0 8px 26px rgba(60,224,212,.22)}
.btn-primary:hover{box-shadow:0 10px 30px rgba(60,224,212,.32)}
.btn-ghost{border:1px solid var(--line);color:var(--ink2);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.trust-row{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px}
.trust-item{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink3)}
.trust-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan)}
.hero-media{position:relative}
.hframe{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.hframe img{width:100%;height:auto}
.hframe::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.025) 0 1px,transparent 1px 4px);
}
.corner{position:absolute;width:26px;height:26px;border:2px solid var(--cyan);z-index:2}
.corner.tl{top:10px;left:10px;border-right:none;border-bottom:none}
.corner.tr{top:10px;right:10px;border-left:none;border-bottom:none}
.corner.bl{bottom:10px;left:10px;border-right:none;border-top:none}
.corner.br{bottom:10px;right:10px;border-left:none;border-top:none}

/* ===== 数据带 ===== */
.stats{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:var(--bg-2);padding:34px 0}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 20px}
.stat-num{font-family:var(--num);font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1;color:var(--cyan)}
.stat-num.gold{color:var(--gold)}
.stat-label{font-size:13px;color:var(--ink3);margin-top:6px}
.meter{margin-top:30px;padding-top:26px;border-top:1px dashed var(--line-soft)}
.meter-title{font-size:13px;letter-spacing:1.5px;color:var(--ink3);margin-bottom:18px}
.meter-title b{color:var(--ink2)}
.meter-row{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.meter-tag{flex:0 0 86px;font-size:12.5px;color:var(--ink2);text-align:right}
.meter-track{flex:1;height:26px;background:var(--panel);border:1px solid var(--line-soft);border-radius:6px;overflow:hidden;position:relative}
.meter-fill{height:100%;width:0;border-radius:5px;transition:width 1.2s cubic-bezier(.2,.7,.2,1)}
.meter-fill.before{background:repeating-linear-gradient(90deg,#26314F 0 8px,#202A46 8px 16px)}
.meter-fill.after{background:linear-gradient(90deg,var(--cyan),#4FE3CF)}
.meter-val{flex:0 0 74px;font-family:var(--num);font-weight:700;font-size:17px}
.meter-val.b{color:var(--cyan)}
.meter-note{font-size:12px;color:var(--ink3);margin-top:10px}

/* ===== 核心能力 ===== */
.feat-grid{display:grid;grid-template-columns:1fr;gap:0}
.feat{
  border-top:1px solid var(--line-soft);padding:24px 4px;
  transition:background .15s;
}
.feat:hover{background:rgba(143,190,255,.035)}
.feat-ico{width:34px;height:34px;color:var(--cyan);margin-bottom:14px}
.feat h3{font-size:16px;font-weight:700;margin-bottom:6px}
.feat p{font-size:13.5px;color:var(--ink2);line-height:1.65}

/* ===== MC 专项 ===== */
.mc-band{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.mc-in{display:grid;gap:40px}
.mc-list{list-style:none;margin-top:6px}
.mc-list li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-size:14.5px;color:var(--ink2)}
.mc-list li svg{flex:0 0 auto;width:19px;height:19px;margin-top:4px;color:var(--cyan)}
.mc-list b{color:var(--ink)}
.mc-side{display:flex;flex-direction:column;gap:16px}
.shader-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.shader-card{
  text-align:center;padding:18px 8px;border:1px solid var(--line);border-radius:10px;
  background:var(--panel);font-family:var(--num);font-weight:700;font-size:15px;letter-spacing:1px;color:var(--gold);
}
.shader-card small{display:block;font-family:"Noto Sans SC",sans-serif;font-weight:500;font-size:11.5px;color:var(--ink3);letter-spacing:1px;margin-top:4px}
.mc-chip{
  display:flex;align-items:center;gap:10px;padding:15px 16px;border:1px solid var(--line-soft);
  border-radius:10px;background:var(--panel);font-size:13.5px;color:var(--ink2);
}
.mc-chip svg{width:20px;height:20px;color:var(--cyan);flex:0 0 auto}

/* ===== 三档预设 ===== */
.pre-grid{display:grid;grid-template-columns:1fr;gap:16px}
.pre{
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  padding:26px 22px;display:flex;flex-direction:column;gap:12px;position:relative;
}
.pre-hot{border-color:rgba(242,193,78,.5)}
.pre-hot .pre-name{color:var(--gold)}
.pre-tag{
  position:absolute;top:-11px;right:16px;font-size:11px;font-weight:700;letter-spacing:1.5px;
  color:#171204;background:var(--gold);border-radius:999px;padding:3px 10px;
}
.pre-name{font-size:20px;font-weight:900}
.pre-sub{font-size:13.5px;color:var(--ink3)}
.pre-points{list-style:none;border-top:1px dashed var(--line-soft);padding-top:12px;margin-top:4px}
.pre-points li{display:flex;gap:10px;font-size:13.5px;color:var(--ink2);padding:5px 0}
.pre-points li::before{content:"+";color:var(--cyan);font-weight:700}

/* ===== 对比表 ===== */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
table.cmp{width:100%;table-layout:fixed;border-collapse:collapse;min-width:560px}
table.cmp col:first-child{width:34%}
table.cmp col:nth-child(2){width:33%}
table.cmp col:nth-child(3){width:33%}
.cmp th,.cmp td{padding:14px 14px;text-align:left;border-bottom:1px solid var(--line-soft);font-size:13.5px}
.cmp thead th{font-size:13px;letter-spacing:1px;color:var(--ink3);font-weight:700;background:var(--bg-2)}
.cmp thead th:first-child{color:var(--ink2)}
.cmp td:first-child{color:var(--ink2)}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp .ok{color:var(--ok);font-weight:700}
.cmp .no{color:var(--no)}
.cmp .me{color:var(--gold);font-weight:700}

/* ===== 下载 ===== */
.dl-grid{display:grid;grid-template-columns:1fr;gap:16px}
.dl-card{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:26px 22px;display:flex;flex-direction:column;gap:14px}
.dl-card.main{border-color:rgba(60,224,212,.45)}
.dl-name{font-size:17px;font-weight:900;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.dl-name .badge{font-size:11px;font-weight:700;color:#04100E;background:var(--cyan);border-radius:6px;padding:2px 8px;letter-spacing:.5px}
.dl-name .soon{font-size:11px;font-weight:700;color:var(--ink3);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.dl-desc{font-size:13.5px;color:var(--ink2);line-height:1.65}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12.5px;color:var(--ink3)}
.dl-meta b{color:var(--ink2);font-weight:600}
.sha-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--bg-2);border:1px solid var(--line-soft);border-radius:8px;padding:9px 12px}
.sha-row code{font-family:var(--num);font-size:12px;color:var(--ink2);word-break:break-all;flex:1;min-width:0}
.sha-copy{flex:0 0 auto;font-size:12px;color:var(--cyan);background:none;border:1px solid rgba(60,224,212,.35);border-radius:6px;padding:5px 11px;cursor:pointer;font-weight:600}
.sha-copy:hover{background:rgba(60,224,212,.1)}
.dl-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;padding:14px 18px;font-size:15.5px;font-weight:900;transition:transform .15s,box-shadow .15s;
}
.dl-btn:hover{transform:translateY(-2px)}
.dl-btn.live{background:linear-gradient(135deg,var(--cyan),#2BBFA8);color:#04100E;box-shadow:0 8px 24px rgba(60,224,212,.22)}
.dl-btn.live:hover{box-shadow:0 10px 30px rgba(60,224,212,.32)}
.dl-btn.wait{border:1px solid var(--line);color:var(--ink3);background:rgba(255,255,255,.02);cursor:pointer}
.dl-note{font-size:12px;color:var(--ink3)}
.dl-src{border-top:1px dashed var(--line-soft);margin-top:6px;padding-top:16px;display:grid;gap:10px}
.src-item{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink3);flex-wrap:wrap}
.src-item code{font-family:var(--num);color:var(--ink2);background:var(--bg-2);border:1px solid var(--line-soft);border-radius:6px;padding:3px 8px;font-size:11.5px}
.warn-box{
  margin-top:22px;border:1px solid rgba(242,193,78,.35);border-radius:10px;background:rgba(242,193,78,.05);
  padding:16px 18px;font-size:13px;color:var(--ink2);line-height:1.7;
}
.warn-box b{color:var(--gold)}

/* ===== FAQ ===== */
.faq{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item:first-child{border-top:1px solid var(--line-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;background:none;border:none;cursor:pointer;
  text-align:left;padding:18px 2px;font-size:15px;font-weight:700;color:var(--ink);
}
.faq-q .faq-ico{flex:0 0 auto;width:22px;height:22px;border:1px solid var(--line);border-radius:50%;color:var(--cyan);font-weight:700;display:flex;align-items:center;justify-content:center;transition:transform .2s;font-family:var(--num)}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-in{padding:0 2px 20px 36px;font-size:14px;color:var(--ink2);line-height:1.8}
.faq-a-in b{color:var(--ink)}

/* ===== 隐私 ===== */
.priv-band{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.priv-grid{display:grid;grid-template-columns:1fr;gap:0}
.priv-item{padding:22px 4px;border-top:1px solid var(--line-soft)}
.priv-item:first-child{border-top:none}
.priv-item h3{font-size:15px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:9px}
.priv-item h3 svg{width:19px;height:19px;color:var(--cyan);flex:0 0 auto}
.priv-item p{font-size:13.5px;color:var(--ink2);line-height:1.7}

/* ===== Footer ===== */
.foot{padding:52px 0 36px}
.foot-grid{display:grid;gap:30px;grid-template-columns:1fr}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand img{width:42px;height:42px;border-radius:10px}
.foot-brand b{font-size:18px;font-weight:900}
.foot-tag{color:var(--ink3);font-size:13.5px;max-width:340px}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13.5px}
.foot-links a{color:var(--ink2)}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;
  font-size:12px;color:var(--ink3);
}
.foot-bottom .ver{color:var(--gold);font-family:var(--num);font-size:13px}

/* ===== Toast ===== */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(16px);
  background:#12203F;border:1px solid var(--line);border-radius:10px;
  padding:11px 20px;font-size:13.5px;color:var(--ink);
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:90;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== 多页路由 ===== */
.page{display:none}
.page.active{display:block}
.page.sec{padding-top:104px}

/* ===== 游戏库 ===== */
.search-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.search-box{flex:1;min-width:220px;display:flex;align-items:center;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:0 14px}
.search-box svg{width:17px;height:17px;color:var(--ink3);flex:0 0 auto}
.search-box input{flex:1;min-width:0;background:none;border:none;outline:none;color:var(--ink);font-size:15px;padding:13px 0;font-family:inherit}
.search-box input::placeholder{color:var(--ink3)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;color:var(--ink2);background:none;border:1px solid var(--line);border-radius:999px;padding:6px 13px;cursor:pointer;font-family:inherit;transition:background .15s,color .15s,border-color .15s}
.chip:hover{color:var(--cyan);border-color:rgba(60,224,212,.4)}
.chip.on{color:#04100E;background:var(--cyan);border-color:var(--cyan);font-weight:700}
.games-count{font-size:13px;color:var(--ink3);margin:2px 0 16px}
.games-grid{display:grid;grid-template-columns:1fr;gap:12px}
.game-card{border:1px solid var(--line-soft);border-radius:10px;background:var(--panel);padding:15px 17px;transition:border-color .15s}
.game-card:hover{border-color:rgba(60,224,212,.3)}
.game-name{font-size:15px;font-weight:900;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.badge-cat{font-size:11px;color:var(--cyan);border:1px solid rgba(60,224,212,.3);border-radius:6px;padding:1px 7px;font-weight:600}
.badge-lau{font-size:11px;color:var(--ink3);border:1px solid var(--line);border-radius:6px;padding:1px 7px}
.game-args{margin-top:8px;font-family:var(--num);font-size:12px;color:var(--gold);background:var(--bg-2);border:1px solid var(--line-soft);border-radius:6px;padding:4px 9px;display:inline-block;word-break:break-all}
.game-tips{margin-top:8px;font-size:12.5px;color:var(--ink2);line-height:1.6}
.game-tips i{font-style:normal;color:var(--ink3)}
.game-config{margin-top:4px;font-size:11.5px;color:var(--ink3);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.games-empty{padding:44px 0;text-align:center;color:var(--ink3);font-size:14px}
.loadmore{display:block;margin:24px auto 0;font-size:14px;font-weight:700;color:var(--cyan);background:none;border:1px solid rgba(60,224,212,.35);border-radius:10px;padding:12px 28px;cursor:pointer;font-family:inherit}
.loadmore:hover{background:rgba(60,224,212,.1)}
@media (min-width:900px){.games-grid{grid-template-columns:repeat(2,1fr)}}

/* ===== 使用指南 ===== */
.guide-block{margin-bottom:46px}
.guide-title{font-size:17px;font-weight:900;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid var(--line-soft)}
.steps{max-width:760px}
.step{display:grid;grid-template-columns:52px 26px 1fr}
.step-num{font-family:var(--num);font-size:15px;font-weight:700;color:var(--gold);text-align:center;padding-top:2px}
.step-axis{position:relative;display:flex;justify-content:center}
.step-dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);margin-top:6px;box-shadow:0 0 8px rgba(60,224,212,.55);z-index:1}
.step:not(:last-child) .step-axis::before{content:"";position:absolute;top:14px;bottom:-16px;width:1px;background:var(--line)}
.step-body{padding:0 0 30px 14px}
.step-body h3{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.step-body p{font-size:13.5px;color:var(--ink2);line-height:1.75;max-width:640px}
.step-body code{font-family:var(--num);color:var(--gold);background:var(--bg-2);border:1px solid var(--line-soft);border-radius:5px;padding:1px 6px;font-size:12px}
@media (min-width:640px){.step{grid-template-columns:60px 26px 1fr}}

/* ===== 更新日志 ===== */
.log-item{display:grid;grid-template-columns:92px 26px 1fr;max-width:820px}
.log-ver{font-family:var(--num);font-weight:700;font-size:14.5px;color:var(--cyan);text-align:center;padding-top:2px;white-space:nowrap}
.log-ver.new{color:var(--gold)}
.log-axis{position:relative;display:flex;justify-content:center}
.log-dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);margin-top:7px;z-index:1}
.log-item:not(:last-child) .log-axis::before{content:"";position:absolute;top:16px;bottom:-14px;width:1px;background:var(--line)}
.log-body{padding:0 0 30px 14px}
.log-date{font-size:12px;color:var(--ink3);font-family:var(--num)}
.log-tag{display:inline-block;font-size:10.5px;color:var(--ink3);border:1px solid var(--line);border-radius:5px;padding:0 7px;margin-left:8px;vertical-align:1px}
.log-body ul{list-style:none;margin-top:8px}
.log-body li{font-size:13.5px;color:var(--ink2);line-height:1.7;padding:2px 0;display:flex;gap:9px}
.log-body li::before{content:"+";color:var(--cyan);font-weight:700}
@media (max-width:560px){.log-item{grid-template-columns:70px 22px 1fr}}

/* ===== 代码块 ===== */
.codeblock{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;padding:14px 16px;font-family:var(--num);font-size:12.5px;color:var(--ink2);overflow-x:auto;line-height:1.8;margin-top:8px}
.codeblock b{color:var(--gold);font-weight:600}

/* ===== 动效 & 响应式 ===== */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].in{opacity:1;transform:none}
@media (min-width:640px){
  .stat-grid{grid-template-columns:repeat(4,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .feat{border-top:none;border-right:1px solid var(--line-soft);padding:26px 24px;margin-top:0}
  .feat:nth-child(odd){border-left:none}
  .feat:nth-child(-n+2){border-top:1px solid var(--line-soft)}
  .priv-grid{grid-template-columns:repeat(2,1fr)}
  .priv-item:nth-child(3){border-top:1px solid var(--line-soft)}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
  .hero-in{grid-template-columns:1.05fr .95fr}
  .mc-in{grid-template-columns:1.1fr .9fr}
  .pre-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:repeat(3,1fr)}
  .feat:nth-child(3n){border-right:none}
  .feat:nth-child(-n+3){border-top:1px solid var(--line-soft)}
  .priv-grid{grid-template-columns:repeat(4,1fr)}
  .priv-item:nth-child(2){border-top:1px solid var(--line-soft)}
  .priv-item:nth-child(3){border-top:1px solid var(--line-soft)}
  .priv-item:nth-child(4){border-top:1px solid var(--line-soft)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:1180px){
  .nav-links{display:flex}
  .nav-toggle{display:none}
  .feat-grid{grid-template-columns:repeat(4,1fr)}
  .feat:nth-child(3n){border-right:1px solid var(--line-soft)}
  .feat:nth-child(4n){border-right:none}
  .feat:nth-child(-n+4){border-top:1px solid var(--line-soft)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
}
/* ===== PHP 版补充（Nginx + PHP + MySQL 多页路由）===== */
.page{display:block}                 /* 覆盖单页 SPA 的 display:none，PHP 版页面始终可见 */
.page-root{display:block}
.nav-link.on{color:var(--cyan);font-weight:700}
.chips a.chip{text-decoration:none;display:inline-block}
.pager{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:26px;flex-wrap:wrap}
.pager-info{font-size:13px;color:var(--ink3);font-family:var(--num)}
.search-box .btn{flex:0 0 auto;align-self:stretch;border-radius:0 10px 10px 0!important}
.search-box .btn:hover{transform:none}