/* roulang page: index */
:root{
  --bg:#0B0E1A;
  --bg-soft:#111624;
  --bg-card:#141A2B;
  --neon:#FF4D6D;
  --neon-2:#FF8A5B;
  --mint:#3DF5C8;
  --text:#F5F7FA;
  --muted:#A7B0C0;
  --line:#2A3040;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(255,77,109,.18);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  line-height:1.75;
  font-size:16px;
  padding-top:64px;
  -webkit-font-smoothing:antialiased;
}
@media(min-width:1024px){body{padding-top:112px}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{letter-spacing:-0.02em;font-weight:800;line-height:1.3;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.section{padding:64px 0}
@media(max-width:640px){.section{padding:40px 0}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(11,14,26,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.head-top{display:flex;align-items:center;gap:18px;height:64px}
.logo{
  display:flex;align-items:center;gap:9px;
  font-size:17px;font-weight:900;letter-spacing:-.02em;white-space:nowrap;
}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.logo-mark svg{width:18px;height:18px}
.nav-search{
  position:relative;flex:1 1 auto;max-width:620px;
  display:flex;align-items:center;
}
.nav-search svg{
  position:absolute;left:15px;width:17px;height:17px;color:var(--muted);pointer-events:none;
}
.nav-search input{
  width:100%;height:42px;border-radius:999px;
  background:#0F1424;border:1px solid var(--line);color:var(--text);
  padding:0 18px 0 43px;font-size:14.5px;outline:none;
  transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
.nav-search input::placeholder{color:#68738a}
.nav-search input:focus{
  border-color:var(--mint);
  box-shadow:0 0 0 3px rgba(61,245,200,.16);
}
.head-cta{display:none}
@media(min-width:1024px){.head-cta{display:inline-flex}}
.burger{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#0F1424;color:var(--text);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
}
@media(min-width:1024px){.burger{display:none}}
.head-cats{
  display:none;gap:8px;height:48px;align-items:center;
  border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
}
.head-cats::-webkit-scrollbar{display:none}
@media(min-width:1024px){.head-cats{display:flex}}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:#0F1424;
  font-size:13.5px;color:var(--muted);transition:.2s ease-out;white-space:nowrap;
}
.pill:hover{border-color:var(--mint);color:var(--text);background:rgba(61,245,200,.08)}
.pill.active{
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  border-color:transparent;color:#fff;font-weight:600;
}

/* mobile drawer */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,360px);z-index:90;
  background:#0D1120;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease-out;
  padding:20px 18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,7,14,.66);z-index:80;
  opacity:0;visibility:hidden;transition:.28s ease-out;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:15.5px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--mint)}
.drawer-link.active{color:var(--neon);font-weight:700}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out, box-shadow .2s ease-out, background .2s ease-out, border-color .2s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);color:#fff;
  box-shadow:0 10px 26px rgba(255,77,109,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,77,109,.38)}
.btn-outline{
  border-color:var(--line);background:transparent;color:var(--text);
}
.btn-outline:hover{border-color:var(--mint);background:rgba(61,245,200,.1);transform:translateY(-2px)}
.btn-ghost{
  border-color:transparent;background:rgba(255,255,255,.06);color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(11,14,26,.97) 0%, rgba(11,14,26,.9) 46%, rgba(11,14,26,.62) 100%);
}
.hero-inner{position:relative;padding:72px 0 76px}
@media(max-width:768px){.hero-inner{padding:44px 0 48px}}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(61,245,200,.1);border:1px solid rgba(61,245,200,.35);
  color:var(--mint);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:900;margin:18px 0 0}
.hero h1 .hl{
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(20,26,43,.72);padding:12px 18px;min-width:132px;
}
.stat b{display:block;font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:22px;color:var(--mint);letter-spacing:-.02em}
.stat span{font-size:12.5px;color:var(--muted)}
.hero-visual{position:relative}
.hero-shot{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(61,245,200,.35);
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  clip-path:polygon(0 0,100% 0,100% 88%,88% 100%,0 100%);
  aspect-ratio:4/3;background:#0F1424;
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,26,0) 40%,rgba(11,14,26,.78) 100%);
}
.hero-progress{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
}
.hero-progress .bar{
  height:8px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden;margin-top:8px;
}
.hero-progress .bar i{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,#FF4D6D,#3DF5C8);
  transition:width 1.2s ease-out;
}
.hero-progress .cap{display:flex;justify-content:space-between;font-size:12.5px;color:#d7dde8}
.lvl-chip{
  position:absolute;top:18px;left:18px;z-index:2;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(11,14,26,.8);border:1px solid rgba(61,245,200,.5);color:var(--mint);
}

/* ---------- section heading ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-head p{color:var(--muted);font-size:14.5px;margin-top:8px}
.sec-more{font-size:14px;color:var(--mint);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.sec-more:hover{text-decoration:underline}

/* ---------- cards ---------- */
.card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);
  padding:22px;transition:transform .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:var(--mint);box-shadow:var(--shadow-hover)}
.card-flat:hover{transform:none;border-color:var(--mint)}
.card-big{padding:30px;display:flex;flex-direction:column;justify-content:space-between;gap:20px}
.num{
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:44px;font-weight:800;line-height:1;color:rgba(255,77,109,.9);
}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(61,245,200,.1);border:1px solid rgba(61,245,200,.3);color:var(--mint);
}
.icon-box svg{width:22px;height:22px}
.card h3{font-size:18.5px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(61,245,200,.12);color:var(--mint);border:1px solid rgba(61,245,200,.28);
}
.tag-gray{background:rgba(167,176,192,.1);color:var(--muted);border-color:var(--line)}
.tag-neon{background:rgba(255,77,109,.14);color:#FF8A9E;border-color:rgba(255,77,109,.32)}

/* ---------- reward ladder ---------- */
.ladder{position:relative;padding-left:26px}
.ladder::before{
  content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,#FF4D6D,#3DF5C8);
  opacity:.5;
}
.ladder-item{position:relative;padding:14px 0}
.ladder-item::before{
  content:"";position:absolute;left:-24px;top:22px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--mint);
}
.ladder-item.locked::before{border-color:#4A5364}
.ladder-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg-card);
  padding:14px 18px;transition:.2s ease-out;
}
.ladder-row:hover{border-color:var(--mint)}
.lv-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:56px;height:28px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);color:#fff;
}
.lv-badge.gray{background:#232A3A;color:var(--muted)}

/* ---------- task progress ---------- */
.progress-shell{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);padding:26px;
}
.pbar{height:10px;border-radius:999px;background:#20273a;overflow:hidden}
.pbar i{display:block;height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,#FF4D6D,#FF8A5B);transition:width 1.1s ease-out}
.pbar.thin{height:6px}
.task-row{
  display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line);
}
.task-row:last-child{border-bottom:none}
.tick{
  width:24px;height:24px;border-radius:8px;flex:0 0 auto;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--mint);
}
.tick.done{background:rgba(61,245,200,.14);border-color:rgba(61,245,200,.5)}
.tick svg{width:14px;height:14px}
.task-main{flex:1;min-width:0}
.task-main b{font-size:14.5px;font-weight:600;display:block}
.task-main span{font-size:12.5px;color:var(--muted)}
.task-pct{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:14px;color:var(--mint);min-width:52px;text-align:right}

/* ---------- news list ---------- */
.news-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:#0F1424;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body .excerpt{
  color:var(--muted);font-size:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:#7d879b}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);padding:48px 24px;text-align:center;background:var(--bg-soft);
}
.empty-state svg{width:44px;height:44px;color:#4A5364;margin:0 auto 14px}

/* ---------- proof ---------- */
.proof-grid{display:grid;gap:18px}
.quote{color:var(--muted);font-size:14.5px;line-height:1.8}
.quote-by{display:flex;align-items:center;gap:10px;margin-top:16px}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(255,77,109,.85),rgba(61,245,200,.75));
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#0B0E1A;
}
.quote-by b{font-size:14px;display:block}
.quote-by span{font-size:12.5px;color:#7d879b}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid var(--line);
  background:#101627;
  padding:48px 36px;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;right:-10%;width:70%;height:180%;
  background:linear-gradient(135deg,rgba(255,77,109,.35),rgba(255,138,91,.05));
  transform:skewX(-18deg);
}
.cta-band::after{
  content:"";position:absolute;bottom:-60%;left:-6%;width:44%;height:160%;
  background:linear-gradient(135deg,rgba(61,245,200,.22),rgba(61,245,200,0));
  transform:skewX(-18deg);
}
.cta-inner{position:relative;z-index:2;max-width:640px}
@media(max-width:640px){.cta-band{padding:34px 22px}}
.cta-inner h2{font-size:clamp(22px,3vw,34px)}
.cta-inner p{color:var(--muted);margin-top:12px;font-size:15px}

/* ---------- faq ---------- */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out;
}
.faq-item.open{border-color:rgba(61,245,200,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:none;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;min-height:56px;
}
.faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-2px}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--mint);transition:transform .25s ease-out;
}
.faq-item.open .faq-sign{transform:rotate(45deg);border-color:rgba(61,245,200,.5)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:14.5px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#0A0D17;margin-top:24px}
.footer-grid{display:grid;gap:32px;padding:56px 0 40px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-grid h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-grid a,.footer-grid li{color:var(--muted);font-size:14px;line-height:2.1}
.footer-grid a:hover{color:var(--mint)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7d879b;
}
.brand-note{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out, transform .5s ease-out}
.reveal.in{opacity:1;transform:none}

/* roulang page: article */
:root{
  --bg:#0B0E1A;
  --bg-soft:#111624;
  --panel:#141A29;
  --panel-2:#182031;
  --line:#2A3040;
  --text:#F5F7FA;
  --text-2:#D7DEEA;
  --muted:#A7B0C0;
  --dim:#7C869A;
  --pink:#FF4D6D;
  --mint:#3DF5C8;
  --grad:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(255,77,109,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out}
img{max-width:100%;display:block;height:auto}
button,input{font-family:inherit}
ul,ol{padding-left:0}
h1,h2,h3,h4{letter-spacing:-.02em;line-height:1.3;margin:0}
p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:8px}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px;width:100%}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,14,26,.94);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-top{display:flex;align-items:center;gap:18px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:17px;letter-spacing:-.02em;white-space:nowrap;color:var(--text)}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  background:var(--grad);display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.logo-mark svg{width:19px;height:19px}
.nav-search{
  flex:1;max-width:560px;display:flex;align-items:center;gap:10px;
  background:#121826;border:1px solid var(--line);border-radius:999px;
  padding:10px 16px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.nav-search svg{width:17px;height:17px;color:var(--dim);flex:none}
.nav-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font-size:14px}
.nav-search input::placeholder{color:#6B7588}
.nav-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 2px rgba(61,245,200,.22);background:#141B2B}
.head-cta{flex:none}
.burger{
  display:none;flex:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--panel);
  border:1px solid var(--line);color:var(--text);cursor:pointer;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.burger:hover{border-color:var(--mint)}
.head-cats{display:flex;gap:8px;padding-bottom:12px;overflow-x:auto;scrollbar-width:none}
.head-cats::-webkit-scrollbar{display:none}
.pill{
  padding:8px 16px;border-radius:999px;font-size:14px;white-space:nowrap;
  background:#151B2A;border:1px solid transparent;color:var(--muted);
  transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;
}
.pill:hover{color:#fff;border-color:rgba(61,245,200,.5);background:var(--panel-2)}
.pill.active{background:var(--grad);color:#fff;border-color:transparent;font-weight:700}
.read-progress{
  position:absolute;left:0;bottom:-1px;height:3px;width:0;
  background:linear-gradient(90deg,#FF4D6D,#3DF5C8);
  border-radius:0 3px 3px 0;transition:width .1s linear;z-index:3;
}
.drawer{display:none}
.drawer.open{
  display:block;border-top:1px solid var(--line);
  padding:16px 0 20px;background:rgba(11,14,26,.98);
}
.drawer .nav-search{max-width:none;width:100%}
.drawer-links{display:grid;gap:8px;margin-top:16px}
.drawer-links a{
  padding:12px 16px;border-radius:12px;background:var(--panel);
  border:1px solid var(--line);font-size:15px;color:var(--text-2);
}
.drawer-links a:hover{border-color:var(--mint);color:var(--mint)}
.drawer-links a.active{background:var(--grad);color:#fff;border-color:transparent;font-weight:700}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-weight:700;font-size:15px;
  padding:12px 22px;min-height:44px;border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(255,77,109,.28)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 14px 32px rgba(255,77,109,.38)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{border-color:var(--mint);color:var(--mint);background:rgba(61,245,200,.08);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  padding-bottom:32px;
  background:
    linear-gradient(180deg,rgba(11,14,26,.86),rgba(11,14,26,.97)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:380px;height:380px;
  background:linear-gradient(135deg,rgba(255,77,109,.22),rgba(61,245,200,.10));
  filter:blur(70px);pointer-events:none;
}
.crumb{
  position:relative;z-index:1;
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);padding:26px 0 0;
}
.crumb a:hover{color:var(--mint)}
.crumb .sep{color:#48526A}
.crumb .cur{color:#fff;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  position:relative;z-index:1;
  margin:18px 0 0;font-size:clamp(25px,3.8vw,40px);font-weight:900;
  color:#fff;max-width:920px;overflow-wrap:anywhere;
}
.meta-row{
  position:relative;z-index:1;
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:20px;font-size:13.5px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#3A4358;flex:none}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(61,245,200,.12);color:var(--mint);border:1px solid rgba(61,245,200,.28);
}
.chip-pink{background:rgba(255,77,109,.14);color:#FF7A93;border-color:rgba(255,77,109,.32)}

/* ============ 正文 ============ */
.article-main{padding:52px 0 8px}
.article-wrap{max-width:760px;margin:0 auto}
.article-body{
  font-size:17px;line-height:1.85;color:var(--text-2);overflow-wrap:anywhere;
}
.article-body h1,.article-body h2{
  font-size:24px;font-weight:800;color:#fff;margin:38px 0 14px;
  padding-left:14px;border-left:4px solid var(--pink);line-height:1.45;
}
.article-body h3{font-size:19px;font-weight:800;color:#fff;margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:800;color:var(--mint);margin:24px 0 10px}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body li{margin:8px 0}
.article-body li::marker{color:var(--pink)}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;border-left:4px solid var(--mint);
  background:var(--bg-soft);border-radius:0 12px 12px 0;color:#C9D2E0;font-size:16px;
}
.article-body img{
  max-width:100%;height:auto;border-radius:12px;margin:26px auto;
  border:1px solid var(--line);
}
.article-body pre{
  background:#0A0D18;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;margin:0 0 22px;
  color:#C9F5E6;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body code{
  background:rgba(61,245,200,.10);color:#8CF3DA;border-radius:6px;
  padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:0 0 24px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px;
}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:#161D2E;color:#fff;font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body a{color:var(--mint);border-bottom:1px solid rgba(61,245,200,.4);padding-bottom:1px}
.article-body a:hover{color:#fff;border-color:#fff}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}

.article-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--panel);padding:44px 26px;text-align:center;
}
.empty-state h2{font-size:22px;font-weight:800;color:#fff;margin:0 0 12px;padding:0;border:0}
.empty-state p{color:var(--muted);margin:0 0 22px}

/* ============ 相关推荐 ============ */
.rec{padding:64px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.sec-head h2{font-size:clamp(21px,2.4vw,28px);font-weight:900;color:#fff}
.sec-head p{color:var(--muted);font-size:14.5px;margin-top:8px}
.sec-head .more{font-size:14px;color:var(--mint);border-bottom:1px solid rgba(61,245,200,.4);padding-bottom:2px}
.sec-head .more:hover{color:#fff;border-color:#fff}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.65);box-shadow:var(--shadow-hover)}
.thumb{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:#0F1421}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:800;color:#fff;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--dim);margin-top:auto;padding-top:6px}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;margin:64px 0 0;
  border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(120deg,#121826,#0B0E1A 60%);
  padding:40px 34px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:340px;height:340px;
  background:linear-gradient(135deg,rgba(255,77,109,.38),rgba(61,245,200,.16));
  filter:blur(70px);transform:rotate(18deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,27px);font-weight:900;color:#fff;margin-bottom:10px}
.cta-inner p{color:var(--muted);font-size:15px;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#0A0D18;margin-top:80px;padding:54px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:14px;font-weight:800;color:#fff;margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;color:var(--muted);font-size:14px}
.site-footer ul a{color:var(--muted)}
.site-footer ul a:hover{color:var(--mint)}
.brand-note{color:var(--muted);font-size:14px;margin:14px 0 0;max-width:290px}
.footer-bottom{
  margin-top:38px;border-top:1px solid var(--line);padding-top:18px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-search,.head-cta,.head-cats{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .head-top{padding:12px 0}
  .logo{font-size:16px}
}
@media (max-width:768px){
  .article-main{padding:38px 0 4px}
  .article-body{font-size:16px}
  .article-body h1,.article-body h2{font-size:21px;margin-top:30px}
  .article-body h3{font-size:18px}
  .cta-band{padding:30px 22px;border-radius:18px}
  .rec{padding-top:48px}
  .site-footer{padding:42px 0 20px;margin-top:60px}
}
@media (max-width:640px){
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .crumb .cur{max-width:80vw}
  .btn{width:100%}
  .article-foot .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#0B0E1A;
  --bg-soft:#121728;
  --panel:#141A2A;
  --line:#2A3040;
  --text:#F5F7FA;
  --muted:#A7B0C0;
  --primary:#FF4D6D;
  --primary-2:#FF8A5B;
  --mint:#3DF5C8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(255,77,109,.18);
  --ease:all .25s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(760px 420px at 12% -6%, rgba(255,77,109,.15), transparent 62%),
    radial-gradient(680px 380px at 92% 4%, rgba(61,245,200,.10), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:700;letter-spacing:-.01em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,14,26,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-top{display:flex;align-items:center;gap:16px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text);white-space:nowrap}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.logo-mark svg{width:19px;height:19px}
.nav-search{
  flex:1 1 auto;min-width:240px;max-width:560px;
  display:flex;align-items:center;gap:10px;
  background:#131826;border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:10px 18px;
  transition:var(--ease);
}
.nav-search svg{width:18px;height:18px;color:var(--muted);flex:0 0 18px}
.nav-search input{
  flex:1;border:0;background:transparent;color:var(--text);
  font-size:15px;outline:none;min-height:24px;
}
.nav-search input::placeholder{color:#7C8698}
.nav-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(61,245,200,.18)}
.head-cta{flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;transition:var(--ease);
}
.burger:hover{border-color:var(--mint)}
.head-cats{display:flex;gap:8px;padding:0 0 14px;overflow-x:auto;scrollbar-width:none}
.head-cats::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--muted);
  font-size:14px;font-weight:600;min-height:40px;transition:var(--ease);
}
.pill:hover{color:var(--text);border-color:rgba(61,245,200,.5);background:rgba(61,245,200,.06)}
.pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  box-shadow:0 8px 20px rgba(255,77,109,.28);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:var(--ease);
}
.btn-primary{background:linear-gradient(135deg,#FF4D6D,#FF8A5B);color:#fff;box-shadow:0 10px 24px rgba(255,77,109,.28)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--mint);background:rgba(61,245,200,.08);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:264px;display:flex;align-items:flex-end;
  padding:52px 0 40px;
  background-image:linear-gradient(100deg,rgba(11,14,26,.94) 12%,rgba(11,14,26,.55) 58%,rgba(11,14,26,.82) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--mint),transparent);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--muted);transition:var(--ease)}
.crumb a:hover{color:var(--mint)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--text);font-weight:700}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(61,245,200,.12);color:var(--mint);font-size:13px;font-weight:700;
  border:1px solid rgba(61,245,200,.28);margin-bottom:16px;
}
.page-hero h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;margin-bottom:14px}
.page-hero .lead{max-width:660px;color:#D6DCE6;font-size:17px}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-tight{padding:44px 0}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.section-head p{color:var(--muted);max-width:720px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mint);margin-bottom:12px;
}

/* ---------- two column ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.55fr);gap:32px;align-items:start}
.sticky-col{position:sticky;top:132px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:var(--ease);
}
.card:hover{border-color:rgba(61,245,200,.5);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.intro-card{padding:26px}
.intro-card h2{font-size:22px;margin-bottom:12px}
.intro-card p{color:var(--muted);font-size:15px}
.check-list{margin:20px 0 22px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#D6DCE6}
.check-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px;color:var(--mint)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}
.stat{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;
  padding:12px 10px;text-align:center;
}
.stat .num{font-size:17px;color:var(--text);display:block}
.stat .lbl{font-size:12px;color:var(--muted)}
.intro-actions{display:flex;gap:10px;flex-wrap:wrap}
.hint{margin-top:16px;font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px}

/* ---------- list rows ---------- */
.block-title{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:16px}
.block-title h3{font-size:19px}
.block-title a{font-size:14px;color:var(--mint);font-weight:700}
.block-title a:hover{text-decoration:underline}
.row-list{display:grid;gap:14px;margin-bottom:40px}
.row{
  display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:16px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;transition:var(--ease);
}
.row:hover{border-color:rgba(255,77,109,.55);background:#171E30;transform:translateY(-2px)}
.row-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,77,109,.12);color:var(--primary);border:1px solid rgba(255,77,109,.28);
}
.row-icon.mint{background:rgba(61,245,200,.12);color:var(--mint);border-color:rgba(61,245,200,.28)}
.row-icon svg{width:22px;height:22px}
.row h4{font-size:16px;margin-bottom:4px}
.row p{color:var(--muted);font-size:14px}
.row .side{display:flex;align-items:center;gap:10px}
.thumb-sm{width:118px;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:#1B2233;border:1px solid var(--line)}
.thumb-sm img{width:100%;height:100%;object-fit:cover}

/* ---------- badges & progress ---------- */
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-pill);font-size:12px;font-weight:700;white-space:nowrap}
.badge-mint{background:rgba(61,245,200,.13);color:var(--mint)}
.badge-pink{background:rgba(255,77,109,.14);color:#FF8C9E}
.badge-gray{background:rgba(167,176,192,.13);color:var(--muted)}
.bar{height:6px;border-radius:var(--radius-pill);background:rgba(167,176,192,.16);overflow:hidden;margin-top:10px}
.bar > span{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,#FF4D6D,#FF8A5B)}
.bar > span.mint{background:linear-gradient(90deg,#3DF5C8,#7CE9FF)}
.step{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;align-items:start}
.step-num{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);border:1px solid var(--line);color:var(--mint);
}
.step-num.done{background:rgba(61,245,200,.14);border-color:rgba(61,245,200,.4);color:var(--mint)}
.step-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.step-head h4{font-size:16px}
.step p{color:var(--muted);font-size:14px;margin-top:4px}
.step-progress{font-size:12px;color:var(--muted)}

/* ---------- horizontal scroll cards ---------- */
.scroll-x{display:flex;gap:18px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.scroll-x::-webkit-scrollbar{height:6px}
.scroll-x::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.gcard{
  flex:0 0 288px;scroll-snap-align:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:var(--ease);
}
.gcard:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.5);box-shadow:var(--shadow-hover)}
.gcard .pic{aspect-ratio:16/9;overflow:hidden;background:#1B2233}
.gcard .pic img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.gcard:hover .pic img{transform:scale(1.05)}
.gcard .body{padding:18px 20px 20px}
.gcard h4{font-size:16px;margin-bottom:8px}
.gcard p{font-size:14px;color:var(--muted);margin-bottom:14px}
.gcard .go{font-size:14px;font-weight:700;color:var(--mint)}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare .card h3{font-size:19px;margin-bottom:6px}
.compare .card .sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.spec{display:grid;gap:12px}
.spec li{display:flex;justify-content:space-between;gap:14px;font-size:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.spec li:last-child{border-bottom:0;padding-bottom:0}
.spec .k{color:var(--muted)}
.spec .v{color:var(--text);font-weight:700;text-align:right}

/* ---------- trio cards ---------- */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.trio .card h4{font-size:17px;margin-bottom:10px}
.trio .card p{color:var(--muted);font-size:14px;margin-bottom:14px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);padding:0 22px;transition:var(--ease)}
.faq-item[open]{border-color:rgba(61,245,200,.5);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:700;min-height:60px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;line-height:1;color:var(--mint);transition:var(--ease)}
.faq-item[open] summary::after{content:"−"}
.faq-item .ans{padding:0 0 20px;color:var(--muted);font-size:15px;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
.cta-band::before{
  content:"";position:absolute;top:-40%;right:-8%;width:62%;height:190%;
  background:linear-gradient(135deg,rgba(255,77,109,.28),rgba(61,245,200,.14));
  transform:skewX(-16deg);filter:blur(6px);pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:10px}
.cta-inner p{color:var(--muted);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#090C15;border-top:1px solid var(--line);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:15px;margin-bottom:16px}
.site-footer ul{display:grid;gap:10px}
.site-footer li,.site-footer p{color:var(--muted);font-size:14px}
.site-footer ul a{color:var(--muted);transition:var(--ease)}
.site-footer ul a:hover{color:var(--mint)}
.brand-note{margin-top:16px;max-width:300px;line-height:1.8}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:#7C8698;font-size:13px;
}
.mt-4{margin-top:16px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .split{grid-template-columns:1fr}
  .sticky-col{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .trio{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav-search{display:none}
  .head-cta{display:none}
  .burger{display:inline-flex}
  .site-header.nav-open .head-top{flex-wrap:wrap}
  .site-header.nav-open .nav-search{display:flex;order:3;flex:1 1 100%;max-width:none;min-width:0}
  .site-header.nav-open .head-cats{flex-direction:column;align-items:stretch;overflow:visible;padding-bottom:16px}
  .site-header.nav-open .pill{justify-content:center}
  .section{padding:44px 0}
  .page-hero{padding:40px 0 32px;min-height:220px}
  .compare{grid-template-columns:1fr}
  .trio{grid-template-columns:1fr}
  .row{grid-template-columns:44px minmax(0,1fr);align-items:start}
  .row .side{grid-column:1 / -1;justify-content:flex-start}
  .row-icon{width:44px;height:44px;border-radius:12px}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner h2{font-size:22px}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr 1fr}
  .intro-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .gcard{flex:0 0 250px}
  .thumb-sm{width:100%}
}

/* roulang page: category2 */
:root{
  --bg:#0B0E1A;
  --bg-soft:#111629;
  --bg-card:#141A2E;
  --line:#2A3040;
  --text:#F5F7FA;
  --muted:#A7B0C0;
  --brand:#FF4D6D;
  --brand2:#FF8A5B;
  --mint:#3DF5C8;
  --r-card:16px;
  --r-btn:12px;
  --r-badge:999px;
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(255,77,109,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;background:var(--bg);}
html body{
  margin:0;
  min-height:100%;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
::selection{background:rgba(255,77,109,.35);}

.wrap{max-width:1200px;margin:0 auto;padding:0 16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:-.01em;
  padding:0 22px;height:46px;min-width:44px;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  color:#fff;box-shadow:0 8px 24px rgba(255,77,109,.28);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 14px 32px rgba(255,77,109,.36);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:rgba(61,245,200,.08);border-color:var(--mint);color:var(--mint);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
.btn:active{transform:translateY(0);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,14,26,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-top{display:flex;align-items:center;gap:16px;padding:12px 0;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:16px;letter-spacing:-.02em;color:var(--text);
  white-space:nowrap;flex:none;
}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:10px;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(255,77,109,.32);
}
.logo-mark svg{width:18px;height:18px;}
.nav-search{
  flex:1 1 auto;max-width:560px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .25s ease-out,box-shadow .25s ease-out,background-color .25s ease-out;
}
.nav-search svg{width:18px;height:18px;flex:none;color:var(--muted);transition:color .25s ease-out;}
.nav-search input{
  flex:1;height:100%;min-width:0;
  background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;font-family:inherit;
}
.nav-search input::placeholder{color:#7C8698;}
.nav-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(61,245,200,.16);background:#161D33;}
.nav-search:focus-within svg{color:var(--mint);}
.head-cta{flex:none;}
.burger{
  display:none;flex:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text);
  transition:border-color .22s ease-out,background-color .22s ease-out;
}
.burger:hover{border-color:var(--mint);color:var(--mint);}
.burger:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}
.head-cats{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 14px;}
.pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-badge);border:1px solid var(--line);
  background:rgba(20,26,46,.6);color:var(--muted);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:color .22s ease-out,border-color .22s ease-out,background-color .22s ease-out,transform .22s ease-out;
}
.pill:hover{color:var(--text);border-color:#3C4459;transform:translateY(-1px);}
.pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  box-shadow:0 6px 18px rgba(255,77,109,.3);
}
.pill:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.32;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,26,.6) 0%,rgba(11,14,26,.86) 55%,rgba(11,14,26,.98) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 0 44px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{color:#4A5266;}
.crumb .cur{color:var(--text);font-weight:600;}
.cat-hero h1{
  font-size:44px;line-height:1.2;font-weight:900;letter-spacing:-.02em;
  margin-bottom:14px;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lede{max-width:760px;color:#C7CFDC;font-size:17px;}
.stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat{
  display:flex;flex-direction:column;gap:2px;
  min-width:150px;padding:14px 18px;
  background:rgba(20,26,46,.72);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(6px);
}
.stat b{
  font-size:24px;font-weight:900;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--mint);
}
.stat span{font-size:13px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;font-weight:900;letter-spacing:-.02em;}
.section-head .sub{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px;}
.section-head .more{font-size:14px;font-weight:700;color:var(--mint);display:inline-flex;align-items:center;gap:6px;}
.section-head .more:hover{color:#7CFFE0;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:8px;margin-bottom:26px;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:6px;}
.filter-bar::-webkit-scrollbar-thumb{background:#2A3040;border-radius:99px;}
.chip{
  flex:none;height:38px;padding:0 18px;border-radius:var(--r-badge);
  border:1px solid var(--line);background:var(--bg-card);color:var(--muted);
  font-size:14px;font-weight:700;
  transition:all .22s ease-out;
}
.chip:hover{color:var(--text);border-color:#3C4459;transform:translateY(-1px);}
.chip.on{
  color:#0B0E1A;background:var(--mint);border-color:var(--mint);
  box-shadow:0 8px 22px rgba(61,245,200,.22);
}
.chip:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

/* ---------- 游戏卡片网格 ---------- */
.game-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.game-card{
  display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.game-card:hover{transform:translateY(-4px);border-color:var(--mint);box-shadow:var(--sh-hover);}
.game-card.is-hidden{display:none;}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0E1424;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.game-card:hover .thumb img{transform:scale(1.04);}
.thumb .rank{
  position:absolute;top:12px;left:12px;
  padding:3px 10px;border-radius:var(--r-badge);
  background:rgba(11,14,26,.82);border:1px solid var(--line);
  font-size:12px;font-weight:800;color:var(--mint);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1;}
.card-tags{display:flex;flex-wrap:wrap;gap:6px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:700;
  background:rgba(61,245,200,.12);color:var(--mint);
}
.tag-pink{background:rgba(255,77,109,.14);color:#FF7C95;}
.tag-gray{background:rgba(167,176,192,.12);color:var(--muted);}
.card-title{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
}
.hot{
  font-size:13px;font-weight:800;color:#FFB199;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.card-link{font-size:13px;font-weight:700;color:var(--mint);}
.card-link:hover{color:#8CFFE9;text-decoration:underline;text-underline-offset:4px;}

/* ---------- 排行区 ---------- */
.rank-panel{
  background:linear-gradient(180deg,rgba(20,26,46,.9),rgba(17,22,41,.9));
  border:1px solid var(--line);border-radius:var(--r-card);padding:8px 0;
}
.rank-row{
  display:grid;grid-template-columns:56px 1fr 120px 96px;align-items:center;gap:14px;
  padding:16px 22px;border-bottom:1px solid var(--line);
  transition:background-color .22s ease-out;
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:rgba(61,245,200,.05);}
.rank-no{
  font-size:18px;font-weight:900;color:var(--muted);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.rank-row.top .rank-no{color:var(--brand);}
.rank-name{font-weight:800;font-size:16px;}
.rank-name small{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:2px;}
.bar{height:8px;border-radius:99px;background:#1E2437;overflow:hidden;}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#FF4D6D,#3DF5C8);transition:width 1s ease-out;}
.rank-val{
  text-align:right;font-size:14px;font-weight:800;color:var(--mint);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;
}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.scene{
  padding:26px 24px;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.scene:hover{transform:translateY(-4px);border-color:#3C4459;box-shadow:var(--sh);}
.scene .ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(255,77,109,.14);color:var(--brand);margin-bottom:16px;
}
.scene .ico svg{width:22px;height:22px;}
.scene h3{font-size:18px;font-weight:800;margin-bottom:10px;}
.scene p{font-size:14px;color:var(--muted);}
.scene ul{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.scene li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:#C7CFDC;
}
.scene li::before{
  content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--mint);
}

/* ---------- 新手指引阶梯 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.step{
  position:relative;padding:28px 24px 24px;
  background:linear-gradient(180deg,rgba(20,26,46,.95),rgba(17,22,41,.6));
  border:1px solid var(--line);border-radius:var(--r-card);
}
.step .num{
  position:absolute;top:-16px;left:24px;
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF4D6D,#FF8A5B);color:#fff;
  font-weight:900;font-size:16px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  box-shadow:0 10px 26px rgba(255,77,109,.3);
}
.step h3{font-size:17px;font-weight:800;margin:14px 0 10px;}
.step p{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .22s ease-out;
}
.faq-item.open{border-color:var(--mint);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);
  padding:18px 22px;text-align:left;font-size:16px;font-weight:700;
}
.faq-q:hover{color:var(--mint);}
.faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-2px;}
.faq-ico{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--mint);font-weight:900;font-size:15px;
  transition:transform .25s ease-out,background-color .25s ease-out;
}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(61,245,200,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:15px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(120deg,#151B30 0%,#1C2238 60%,#2A1D2C 100%);
  padding:44px 40px;
}
.cta-band::before{
  content:"";position:absolute;top:-60%;right:-10%;width:60%;height:220%;
  background:linear-gradient(135deg,rgba(255,77,109,.28),rgba(255,138,91,0));
  transform:rotate(18deg);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;bottom:-70%;left:-6%;width:44%;height:200%;
  background:linear-gradient(135deg,rgba(61,245,200,.18),rgba(61,245,200,0));
  transform:rotate(18deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;font-weight:900;letter-spacing:-.02em;margin-bottom:10px;}
.cta-inner p{color:#BFC8D6;font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0B0E1A,#090C16);
  padding:52px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-grid h4{font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:-.01em;}
.footer-grid ul{display:flex;flex-direction:column;gap:10px;}
.footer-grid ul li{font-size:14px;color:var(--muted);}
.footer-grid ul li a{color:var(--muted);transition:color .2s ease-out;}
.footer-grid ul li a:hover{color:var(--mint);}
.brand-note{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:#7C8698;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .game-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cat-hero h1{font-size:36px;}
  .rank-row{grid-template-columns:44px 1fr 90px 80px;}
}
@media (max-width:900px){
  .head-top{flex-wrap:wrap;gap:12px;}
  .nav-search{order:5;flex-basis:100%;max-width:none;}
  .head-cta{display:none;}
  .burger{display:inline-flex;margin-left:auto;}
  .head-cats{
    display:none;flex-direction:column;gap:8px;
    padding:12px 0 16px;
  }
  .head-cats.open{display:flex;}
  .pill{width:100%;justify-content:center;height:44px;}
}
@media (max-width:768px){
  .section{padding:40px 0;}
  .cat-hero-inner{padding:36px 0 32px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lede{font-size:15px;}
  .stat{flex:1 1 140px;min-width:0;}
  .section-head h2{font-size:22px;}
  .rank-row{grid-template-columns:38px 1fr 76px;row-gap:8px;padding:14px 16px;}
  .rank-row .bar{grid-column:2 / 4;}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 160px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .logo{font-size:14px;}
  .game-grid,.scene-grid,.steps{grid-template-columns:minmax(0,1fr);}
  .cat-hero h1{font-size:24px;}
  .card-body{padding:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --bg:#0B0E1A;
  --bg-soft:#121728;
  --bg-raise:#151A2B;
  --line:#2A3040;
  --text:#F5F7FA;
  --muted:#A7B0C0;
  --primary:#FF4D6D;
  --primary-soft:#FF8A5B;
  --mint:#3DF5C8;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(255,77,109,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 12% -10%,rgba(255,77,109,.16),transparent 60%),
                   radial-gradient(800px 480px at 92% 4%,rgba(61,245,200,.10),transparent 62%);
  background-repeat:no-repeat;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:700;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,14,26,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-top{display:flex;align-items:center;gap:16px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap;color:var(--text)}
.logo-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-soft));
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.logo-mark svg{width:20px;height:20px}
.nav-search{
  flex:1 1 44%;min-width:200px;display:flex;align-items:center;gap:10px;
  background:var(--bg-raise);border:1px solid var(--line);border-radius:12px;
  padding:10px 14px;transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.nav-search svg{width:18px;height:18px;flex:0 0 auto;color:var(--muted)}
.nav-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--text)}
.nav-search input::placeholder{color:#6C7689}
.nav-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(61,245,200,.18)}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:var(--bg-raise);border:1px solid var(--line);border-radius:12px;cursor:pointer;
  transition:border-color .22s ease-out;
}
.burger:hover{border-color:var(--mint)}
.head-cats{display:flex;gap:8px;padding:0 0 14px;overflow-x:auto;scrollbar-width:none}
.head-cats::-webkit-scrollbar{display:none}
.pill{
  padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.pill:hover{color:var(--text);background:#1A2033}
.pill.active{background:rgba(255,77,109,.14);border-color:rgba(255,77,109,.45);color:#FFB3C1}
.drawer{display:none;padding:0 0 18px}
.drawer.open{display:block}
.drawer .nav-search{margin-bottom:14px}
.drawer-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;min-height:44px;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
}
.btn-sm{padding:10px 16px;font-size:14px;min-height:44px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-soft));color:#fff;box-shadow:0 8px 22px rgba(255,77,109,.28)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 14px 32px rgba(255,77,109,.35)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--mint);background:rgba(61,245,200,.08);transform:translateY(-2px)}
.btn:focus-visible,.pill:focus-visible,.burger:focus-visible,.faq-q:focus-visible,a:focus-visible{
  outline:2px solid var(--mint);outline-offset:2px;
}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;z-index:-1}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,14,26,.96) 0%,rgba(11,14,26,.82) 46%,rgba(11,14,26,.62) 100%);
}
.hero-inner{padding:64px 0 56px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--mint);background:rgba(61,245,200,.10);border:1px solid rgba(61,245,200,.32);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.hero h1{font-size:clamp(30px,4.6vw,50px);font-weight:900;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{color:#C7CFDC;font-size:17px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;min-width:150px;
  background:rgba(18,23,40,.82);border:1px solid var(--line);border-radius:14px;padding:14px 18px;
}
.stat-chip b{font-size:22px;font-weight:800;color:var(--mint)}
.stat-chip span{font-size:13px;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section.tight{padding:48px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-head .sec-note{color:var(--muted);font-size:15px;max-width:520px}
.sec-tag{display:block;color:var(--primary);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:10px}

/* ---------- timeline ---------- */
.tl{position:relative;padding-left:0}
.tl::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(255,77,109,.9),rgba(61,245,200,.7) 56%,rgba(42,48,64,.25));
}
.tl-item{position:relative;padding-left:62px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:3px;top:26px;width:26px;height:26px;border-radius:999px;
  background:var(--bg);border:2px solid var(--primary);display:grid;place-items:center;
}
.tl-dot::after{content:"";width:8px;height:8px;border-radius:999px;background:var(--primary)}
.tl-item.is-done .tl-dot{border-color:var(--mint)}
.tl-item.is-done .tl-dot::after{background:var(--mint)}
.tl-item.is-soon .tl-dot{border-color:#4A5468}
.tl-item.is-soon .tl-dot::after{background:#4A5468}
.tl-card{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.5);box-shadow:var(--shadow-hover)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.tl-time{font-size:15px;color:var(--mint);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:700}
.tl-card h3{font-size:18px;margin-bottom:6px}
.tl-card p{color:var(--muted);font-size:15px}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:4px 12px;font-size:12px;font-weight:700;border:1px solid transparent;white-space:nowrap;
}
.badge-live{background:var(--mint);color:#06231C;border-color:var(--mint)}
.badge-open{background:rgba(255,77,109,.14);color:#FFB3C1;border-color:rgba(255,77,109,.42)}
.badge-soon{background:#1A2033;color:var(--muted);border-color:var(--line)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-block;border-radius:999px;padding:3px 12px;font-size:12px;font-weight:600;
  background:rgba(61,245,200,.10);color:var(--mint);border:1px solid rgba(61,245,200,.28);
}
.bar{height:6px;border-radius:999px;background:#1A2033;overflow:hidden;margin-top:16px}
.bar i{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--mint));
  transition:width .9s ease-out;
}
.bar-label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:8px}

/* ---------- grid & cards ---------- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.5);box-shadow:var(--shadow-hover)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#1A2033}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px}
.card-body p{color:var(--muted);font-size:15px}
.card-link{margin-top:auto;color:var(--primary);font-weight:700;font-size:14px}
.card-link:hover{color:var(--mint)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;position:relative;
  transition:transform .24s ease-out,border-color .24s ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.45)}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:34px;font-weight:800;color:rgba(255,77,109,.5);line-height:1;margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}

/* ---------- data strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.strip-cell{background:var(--bg-soft);padding:26px 22px;text-align:center}
.strip-cell b{display:block;font-size:26px;font-weight:800;color:var(--mint);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.strip-cell span{display:block;font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:880px;margin:0 auto}
.faq-item{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .24s ease-out}
.faq-item:hover{border-color:rgba(61,245,200,.4)}
.faq-item.open{border-color:rgba(61,245,200,.55)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  background:none;border:0;padding:18px 22px;text-align:left;font-size:16px;font-weight:700;cursor:pointer;
}
.plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--muted);
  transition:transform .26s ease-out,color .26s ease-out;
}
.plus::before,.plus::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.plus::before{left:0;top:10px;width:22px;height:2px}
.plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item.open .plus{transform:rotate(45deg);color:var(--mint)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(120deg,#161B2E,#0F1322 68%);
  padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta::before{
  content:"";position:absolute;top:-60%;right:-12%;width:60%;height:220%;
  background:linear-gradient(135deg,rgba(255,77,109,.34),rgba(255,138,91,.05));
  transform:rotate(20deg);pointer-events:none;
}
.cta > *{position:relative;z-index:1}
.cta h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:10px}
.cta p{color:#C7CFDC;max-width:560px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#0A0D17;margin-top:24px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:15px;margin-bottom:14px;color:var(--text)}
.site-footer ul li{color:var(--muted);font-size:14px;padding:5px 0}
.site-footer ul li a{color:var(--muted);transition:color .2s ease-out}
.site-footer ul li a:hover{color:var(--mint)}
.brand-note{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}
.mt-4{margin-top:16px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:36px;padding-top:20px;
  color:#79839A;font-size:13px;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .head-cats{display:none}
  .burger{display:inline-flex}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-inner{padding:52px 0 46px}
}
@media (max-width:768px){
  .section{padding:40px 0}
  .section.tight{padding:32px 0}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta{padding:34px 24px}
  .hero-sub{font-size:16px}
}
@media (max-width:640px){
  .head-cta{display:none}
  .nav-search{min-width:0}
  .head-top{gap:10px}
  .logo span:last-child{font-size:15px}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .tl-item{padding-left:50px}
  .tl::before{left:12px}
  .tl-dot{left:0;width:24px;height:24px}
  .footer-grid{grid-template-columns:1fr}
  .hero-inner{padding:40px 0 36px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --bg:#0B0E1A;
  --bg-soft:#111624;
  --card:#121826;
  --card-2:#161C2B;
  --line:#2A3040;
  --text:#F5F7FA;
  --muted:#A7B0C0;
  --muted-2:#8A93A6;
  --primary:#FF4D6D;
  --primary-2:#FF8A5B;
  --accent:#3DF5C8;
  --r-card:16px;
  --r-btn:12px;
  --r-badge:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(255,77,109,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,14,26,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-top{position:relative;display:flex;align-items:center;gap:18px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.logo-mark svg{width:19px;height:19px}
.nav-search{position:relative;flex:1 1 auto;max-width:620px}
.nav-search > svg{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;color:var(--muted);pointer-events:none;
}
.nav-search input{
  width:100%;padding:12px 18px 12px 44px;border-radius:var(--r-badge);
  background:#151B2B;border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.nav-search input::placeholder{color:#6E7889}
.nav-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(61,245,200,.18);background:#121828}
.burger{
  display:none;width:44px;height:44px;flex:0 0 auto;border-radius:12px;
  border:1px solid var(--line);background:#151B2B;color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;transition:.2s ease-out;
}
.burger:hover{border-color:var(--accent)}
.head-cats{display:flex;gap:8px;overflow-x:auto;padding:0 0 12px;scrollbar-width:none}
.head-cats::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:8px 15px;border-radius:var(--r-badge);
  border:1px solid var(--line);color:var(--muted);font-size:14px;
  transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;
}
.pill:hover{color:var(--text);border-color:var(--accent)}
.pill.active{background:rgba(255,77,109,.14);border-color:rgba(255,77,109,.55);color:#FF97AB;font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 24px;border-radius:var(--r-btn);
  border:1px solid transparent;font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,color .22s ease-out,filter .22s ease-out;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 26px rgba(255,77,109,.28)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 32px rgba(255,77,109,.34)}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--text)}
.btn-ghost:hover{background:rgba(255,77,109,.1);border-color:rgba(255,77,109,.5)}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px}
.btn:active{transform:translateY(0)}

/* ============ 页首氛围 ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,26,.5) 0%,rgba(11,14,26,.9) 62%,#0B0E1A 100%);
}
.hero-inner{position:relative;z-index:2;padding:44px 0 40px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#4B5468}
.crumb .cur{color:var(--text)}
.tag-line{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  padding:6px 14px;border-radius:var(--r-badge);
  font-size:13px;font-weight:600;letter-spacing:.05em;
  color:var(--accent);background:rgba(61,245,200,.1);border:1px solid rgba(61,245,200,.3);
}
.page-hero h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;letter-spacing:-.02em}
.hero-sub{margin-top:14px;max-width:640px;color:var(--muted);font-size:17px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat{
  display:flex;flex-direction:column;gap:2px;padding:12px 20px;
  border:1px solid var(--line);border-radius:14px;background:rgba(18,24,38,.72);
}
.stat b{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.stat span{font-size:13px;color:var(--muted)}

/* ============ 板块通用 ============ */
.section{padding:64px 0;border-bottom:1px solid rgba(42,48,64,.6)}
.section:last-of-type{border-bottom:0}
.section.alt{background:linear-gradient(180deg,rgba(18,24,38,.55),rgba(11,14,26,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:900}
.sec-head p{margin-top:8px;color:var(--muted);font-size:15px;max-width:680px}
.link-more{flex:0 0 auto;font-size:14px;font-weight:600;color:var(--accent);border-bottom:1px solid rgba(61,245,200,.35);padding-bottom:2px;transition:.2s ease-out}
.link-more:hover{border-color:var(--accent)}

/* ============ 大图主卡 ============ */
.feature-card{
  display:grid;grid-template-columns:1.05fr 1fr;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--card);box-shadow:var(--shadow);
  transition:border-color .25s ease-out,box-shadow .25s ease-out;
}
.feature-card:hover{border-color:rgba(61,245,200,.45);box-shadow:var(--shadow-hover)}
.feature-media{position:relative;overflow:hidden;background:#161C2B;min-height:280px}
.feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-badge{
  position:absolute;left:18px;top:18px;z-index:2;
  padding:6px 14px;border-radius:var(--r-badge);font-size:13px;font-weight:700;
  background:rgba(11,14,26,.82);border:1px solid rgba(61,245,200,.5);color:var(--accent);
}
.feature-body{padding:32px;display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.feature-body h3{font-size:clamp(20px,2.2vw,25px)}
.feature-body > p{color:var(--muted);font-size:15.5px}
.tick-list{margin-top:2px}
.tick-list li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--muted);font-size:15px}
.tick-list li:last-child{margin-bottom:0}
.tick-list li::before{
  content:"";position:absolute;left:4px;top:8px;width:6px;height:11px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);
}
.tick-list li b{color:var(--text);font-weight:600}

/* ============ 版本对比 ============ */
.compare{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.compare-head,.crow{display:grid;grid-template-columns:.85fr 1fr 1.3fr;gap:16px;align-items:center}
.compare-head{padding:16px 24px;background:var(--card-2);border-bottom:1px solid var(--line);font-size:14px;font-weight:700}
.ch-label{color:var(--muted);font-weight:600}
.ch.old{color:var(--muted-2)}
.ch.new{color:var(--accent)}
.crow{padding:18px 24px;border-bottom:1px solid rgba(42,48,64,.7);font-size:15px;transition:background-color .2s ease-out}
.crow:last-child{border-bottom:0}
.crow:hover{background:var(--card-2)}
.cname{font-weight:600}
.cold{color:var(--muted-2)}
.cnew{color:var(--text)}
.cnew em{font-style:normal;color:var(--accent);font-weight:600}

/* ============ 要点卡片网格 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(61,245,200,.55);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1A2030}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .card-media img{transform:scale(1.045)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px}
.card-body p{color:var(--muted);font-size:14.5px}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-badge);font-size:12.5px;font-weight:600;
  background:rgba(61,245,200,.12);color:var(--accent);border:1px solid rgba(61,245,200,.25);
}
.badge.gray{background:rgba(167,176,192,.12);color:var(--muted);border-color:rgba(167,176,192,.25)}
.badge.pink{background:rgba(255,77,109,.14);color:#FF97AB;border-color:rgba(255,77,109,.3)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:28px;max-width:860px}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),rgba(61,245,200,.08));
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:5px;width:18px;height:18px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);box-shadow:0 0 0 4px rgba(61,245,200,.08);
}
.tl-time{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.02em}
.tl-item h3{font-size:17px;margin-top:4px}
.tl-item p{color:var(--muted);font-size:15px;margin-top:6px}

/* ============ 检查清单 ============ */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.check-row{
  display:flex;align-items:flex-start;gap:14px;padding:18px 20px;
  border:1px solid var(--line);border-radius:14px;background:var(--card);
  transition:border-color .2s ease-out,background-color .2s ease-out,transform .2s ease-out;
}
.check-row:hover{border-color:rgba(61,245,200,.5);background:var(--card-2);transform:translateY(-2px)}
.check-ico{
  flex:0 0 auto;width:26px;height:26px;margin-top:3px;border-radius:9px;
  background:rgba(61,245,200,.14);color:var(--accent);display:grid;place-items:center;
}
.check-ico svg{width:14px;height:14px}
.check-row h3{font-size:15.5px}
.check-row p{color:var(--muted);font-size:14.5px;margin-top:4px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--card);overflow:hidden;transition:border-color .2s ease-out}
.faq-item + .faq-item{margin-top:12px}
.faq-item:hover{border-color:rgba(61,245,200,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-weight:600;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{position:relative;flex:0 0 auto;width:22px;height:22px}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--accent);border-radius:2px;transition:transform .25s ease-out}
.faq-plus::before{left:0;top:10px;width:22px;height:2px}
.faq-plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] .faq-plus::after{transform:scaleY(0)}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;padding:44px;
  border:1px solid var(--line);border-radius:20px;
  background:linear-gradient(120deg,#151B2C,#0E1220);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-80px;width:340px;height:340px;
  background:linear-gradient(135deg,rgba(255,77,109,.45),rgba(255,138,91,.12));
  filter:blur(58px);transform:rotate(18deg);pointer-events:none;
}
.cta-band > div{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);font-weight:900}
.cta-band p{margin-top:10px;color:var(--muted);max-width:560px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 分类入口 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(255,77,109,.5);box-shadow:var(--shadow-hover)}
.cat-card h3{font-size:18px}
.cat-card p{color:var(--muted);font-size:14.5px;flex:1 1 auto}
.cat-card span.go{font-size:14px;font-weight:600;color:var(--accent)}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#0A0D17;padding:52px 0 24px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:15px;margin-bottom:14px;letter-spacing:0}
.site-footer ul li{color:var(--muted);font-size:14.5px;margin-bottom:10px}
.site-footer ul li a{color:var(--muted);transition:color .2s ease-out}
.site-footer ul li a:hover{color:var(--accent)}
.brand-note{color:var(--muted);font-size:14.5px;margin-top:14px;max-width:300px}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--muted-2);font-size:13.5px;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
}
@media (max-width:880px){
  .head-cta{display:none}
  .burger{display:inline-flex}
  .nav-search{
    position:absolute;left:0;right:0;top:calc(100% + 6px);max-width:none;
    padding:0;opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out;
  }
  .nav-search.open{opacity:1;visibility:visible;transform:none}
  .head-top{gap:12px}
  .logo{font-size:15.5px}
  .logo-mark{width:30px;height:30px;border-radius:10px}
}
@media (max-width:768px){
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:0;aspect-ratio:16/10}
  .feature-body{padding:24px}
  .compare-head{display:none}
  .crow{grid-template-columns:1fr;gap:6px;padding:18px}
  .cold::before{content:"上一版本 V6.1 · "}
  .cnew::before{content:"当前版本 V6.2 · ";color:var(--accent);font-weight:600}
  .check-list{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-band{padding:30px}
  .section{padding:44px 0}
}
@media (max-width:640px){
  .grid-4{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-inner{padding:34px 0 32px}
  .hero-sub{font-size:15.5px}
  .stat{padding:10px 16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}