/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --brand-400:#4BF0D6;
  --brand-500:#17E1C2;
  --brand-600:#0FB79C;
  --accent-500:#FFB020;
  --accent-600:#E09410;
  --violet-500:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9B8D0;
  --text-3:#6B7C99;
  --line:rgba(120,180,255,0.14);
  --glass-line:rgba(255,255,255,0.10);
  --glow-brand:0 0 0 1px rgba(23,225,194,.35), 0 8px 30px -8px rgba(23,225,194,.45);
  --shadow-card:0 6px 24px -12px rgba(0,0,0,.6);
  --shadow-lift:0 14px 40px -16px rgba(0,0,0,.7);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:
    radial-gradient(900px 620px at 6% -8%, rgba(23,225,194,.16), transparent 62%),
    radial-gradient(760px 560px at 102% 104%, rgba(124,92,255,.11), transparent 62%),
    var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,180,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:rgba(23,225,194,.28);color:#fff;}
::-webkit-scrollbar{width:9px;height:9px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:rgba(23,225,194,.30);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:rgba(23,225,194,.5);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media (min-width:768px){.container{padding:0 28px;}}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (min-width:1536px){.container{max-width:1320px;}}

.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-tight{padding:40px 0;}
@media (min-width:768px){.section-tight{padding:52px 0;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:60px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
@media (min-width:1024px){.site-header{height:72px;}}
.site-header.is-scrolled{
  background:rgba(10,16,32,.80);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(23,225,194,.22),rgba(124,92,255,.18));
  border:1px solid rgba(23,225,194,.4);
  box-shadow:0 0 18px -6px rgba(23,225,194,.6);
}
.logo-mark svg{width:18px;height:18px;}
.logo-text{
  font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  background:linear-gradient(92deg,#EAF2FF 8%,var(--brand-400) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@media (min-width:1024px){.logo-text{font-size:17px;}}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:6px;}
}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:10px;
  font-size:14.5px;letter-spacing:.02em;color:var(--text-2);
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--brand-500);
  transition:width .2s ease-out;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.nav-link:hover::after{width:42%;}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{width:60%;}
.nav-side{display:flex;align-items:center;gap:10px;}
.status-badge{
  display:none;
  align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(17,26,46,.6);border:1px solid var(--glass-line);
}
@media (min-width:1024px){.status-badge{display:inline-flex;}}
.status-badge .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);box-shadow:0 0 8px var(--brand-500);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.countdown-pill{
  display:none;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(255,176,32,.08);border:1px solid rgba(255,176,32,.35);
}
@media (min-width:1180px){.countdown-pill{display:inline-flex;}}
.countdown-pill b{
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--accent-500);font-size:13px;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.nav-cta{display:none;}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(17,26,46,.7);border:1px solid var(--glass-line);
  cursor:pointer;transition:border-color .2s ease-out,background .2s ease-out;
}
.nav-toggle:hover{border-color:rgba(23,225,194,.5);background:rgba(23,225,194,.10);}
.nav-toggle svg{width:20px;height:20px;stroke:var(--text-1);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* drawer */
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.7);
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out;
  z-index:70;backdrop-filter:blur(2px);
}
.nav-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;
  padding:22px 20px 32px;
  background:rgba(12,19,36,.94);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--glass-line);
  transform:translateX(102%);
  transition:transform .24s ease-out;
  z-index:80;display:flex;flex-direction:column;gap:20px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:transparent;
  border:1px solid var(--glass-line);cursor:pointer;font-size:20px;line-height:1;
  color:var(--text-2);transition:border-color .2s ease-out,color .2s ease-out;
}
.drawer-close:hover{border-color:rgba(23,225,194,.5);color:var(--brand-400);}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-link{
  display:block;padding:14px 12px;border-radius:12px;
  font-size:15.5px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.drawer-link:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.drawer-link.active{color:var(--brand-400);border-left-color:var(--brand-500);background:rgba(23,225,194,.06);}
.drawer-cta{margin-top:auto;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary{
  background:var(--accent-500);color:#16110A;
  box-shadow:0 0 0 1px rgba(255,176,32,.28), 0 10px 30px -12px rgba(255,176,32,.6);
}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,176,32,.42), 0 16px 36px -14px rgba(255,176,32,.75);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  background:transparent;color:var(--brand-400);
  border-color:rgba(23,225,194,.5);
}
.btn-ghost:hover{background:rgba(23,225,194,.12);box-shadow:var(--glow-brand);}
.btn-ghost:active{transform:scale(.99);}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-400);font-size:14px;font-weight:600;
  text-decoration:underline;text-underline-offset:3px;
  transition:color .2s ease-out,gap .2s ease-out;
}
.text-link:hover{color:var(--brand-500);gap:10px;}
.text-link:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:4px;}

/* ---------- glass / cards ---------- */
.glass{
  position:relative;
  background:rgba(17,26,46,.55);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.08),transparent 42%);
}
.solid{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
}
.card{
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(23,225,194,.36);box-shadow:var(--shadow-lift);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--brand-400);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand-500);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(17,26,46,.6);border:1px solid var(--glass-line);
}
.tag-brand{color:var(--brand-400);border-color:rgba(23,225,194,.38);background:rgba(23,225,194,.07);}
.tag-accent{color:var(--accent-500);border-color:rgba(255,176,32,.38);background:rgba(255,176,32,.07);font-variant-numeric:tabular-nums;}

h1.h-hero{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.14;font-weight:700;letter-spacing:-.01em;
}
h2.h-sec{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
}
h3.h-card{font-size:19px;line-height:1.35;font-weight:600;}
@media (min-width:1024px){h3.h-card{font-size:20px;}}
.lead{font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:44em;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.sec-head p{color:var(--text-2);font-size:15px;max-width:52em;margin-top:10px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:44px 0 56px;border-bottom:1px solid var(--line);}
@media (min-width:1024px){.hero{padding:76px 0 92px;}}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.30;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(5,7,15,.96) 4%,rgba(5,7,15,.72) 46%,rgba(5,7,15,.90) 100%);
}
.hero-glow{
  position:absolute;left:-10%;top:-30%;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,225,194,.20),transparent 66%);
  filter:blur(10px);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;gap:40px;align-items:center;}
@media (min-width:1024px){.hero-inner{grid-template-columns:6fr 6fr;gap:48px;}}
.hero-copy{animation:fadeUp .5s ease-out both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.hero-copy .lead{margin-top:18px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
@media (max-width:639px){.hero-actions .btn{width:100%;}}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.dash{padding:22px;animation:fadeUp .55s ease-out .08s both;}
@media (min-width:1024px){.dash{padding:26px;}}
.dash-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.dash-head h3{font-size:15px;font-weight:600;color:var(--text-1);}
.dash-grid{display:grid;grid-template-columns:1fr 1fr;margin-top:4px;}
.dash-cell{padding:18px 4px 14px;border-bottom:1px solid var(--line);}
.dash-cell:nth-child(odd){padding-right:14px;border-right:1px solid var(--line);}
.dash-cell:nth-child(even){padding-left:16px;}
.dash-cell:nth-last-child(-n+2){border-bottom:none;}
.dash-num{
  font-size:clamp(30px,3.4vw,40px);font-weight:700;line-height:1.05;
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--text-1);
}
.dash-num span{font-size:.42em;color:var(--text-2);margin-left:4px;font-family:inherit;}
.dash-label{font-size:13px;color:var(--text-2);margin-top:6px;}
.spark{display:flex;align-items:flex-end;gap:6px;height:56px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.spark i{
  display:block;flex:1;border-radius:4px 4px 2px 2px;
  background:linear-gradient(180deg,var(--brand-500),rgba(23,225,194,.14));
  opacity:.85;
}
.spark i:nth-child(3n){background:linear-gradient(180deg,var(--violet-500),rgba(124,92,255,.12));}

/* ---------- data band ---------- */
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(10,16,32,.55);}
.band-grid{display:grid;grid-template-columns:repeat(2,1fr);}
@media (min-width:768px){.band-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.band-grid{grid-template-columns:repeat(5,1fr);}}
.band-cell{padding:22px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.band-cell:nth-child(2n){border-right:none;}
@media (min-width:768px){
  .band-cell:nth-child(2n){border-right:1px solid var(--line);}
  .band-cell:nth-child(3n){border-right:none;}
}
@media (min-width:1024px){
  .band-cell{border-bottom:none;}
  .band-cell:nth-child(3n){border-right:1px solid var(--line);}
  .band-cell:last-child{border-right:none;}
}
.band-num{
  font-size:clamp(26px,2.6vw,34px);font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--brand-400);
}
.band-num.up{color:var(--accent-500);}
.band-num span{font-size:.44em;color:var(--text-2);margin-left:3px;}
.band-label{font-size:13.5px;color:var(--text-2);margin-top:6px;}

/* ---------- matrix ---------- */
.matrix{display:grid;gap:22px;}
@media (min-width:1024px){.matrix{grid-template-columns:5fr 7fr;gap:24px;}}
.matrix-main{overflow:hidden;display:flex;flex-direction:column;}
.matrix-main figure{position:relative;overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0;}
.matrix-main figure img{width:100%;height:210px;object-fit:cover;transition:transform .35s ease-out;}
.matrix-main:hover figure img{transform:scale(1.04);}
.matrix-main figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.12),rgba(5,7,15,.82));
}
.matrix-main .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.matrix-side{display:grid;gap:22px;}
@media (min-width:768px){.matrix-side{grid-template-columns:1fr 1fr;}}
.matrix-side .mini-list{grid-column:1 / -1;}
.mid-card{padding:22px;display:flex;flex-direction:column;gap:12px;}
.ico{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,225,194,.09);
  border:1px solid rgba(23,225,194,.32);
}
.ico svg{width:22px;height:22px;stroke:var(--brand-400);fill:none;stroke-width:1.6;}
.mini-list{display:grid;gap:0;border-top:1px solid var(--line);}
.mini-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 2px;border-bottom:1px solid var(--line);
}
.mini-item:last-child{border-bottom:none;}
.mini-item .mi-ico{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;margin-top:2px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--glass-line);
}
.mini-item .mi-ico svg{width:16px;height:16px;stroke:var(--brand-400);fill:none;stroke-width:1.7;}
.mini-item h4{font-size:15.5px;font-weight:600;color:var(--text-1);}
.mini-item p{font-size:14px;color:var(--text-2);margin-top:4px;}

/* ---------- news ---------- */
.news-grid{display:grid;gap:22px;}
@media (min-width:1024px){.news-grid{grid-template-columns:5fr 7fr;gap:24px;}}
.news-main{overflow:hidden;display:flex;flex-direction:column;}
.news-main figure{position:relative;overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0;}
.news-main figure img{width:100%;height:230px;object-fit:cover;transition:transform .35s ease-out;}
.news-main:hover figure img{transform:scale(1.04);}
.news-main figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.06),rgba(5,7,15,.62));
}
.badge-cat{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:var(--brand-400);background:rgba(5,12,22,.72);
  border:1px solid rgba(23,225,194,.42);
}
.news-main .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-main h3{font-size:20px;line-height:1.4;font-weight:600;}
.news-main h3 a:hover{color:var(--brand-400);}
.news-main p{font-size:14.5px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
.meta .sep{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.news-sub{display:grid;gap:18px;}
@media (min-width:640px){.news-sub{grid-template-columns:1fr 1fr;}}
.sub-card{overflow:hidden;display:flex;flex-direction:column;}
.sub-card figure{position:relative;overflow:hidden;border-radius:var(--r-md) var(--r-md) 0 0;}
.sub-card figure img{width:100%;height:136px;object-fit:cover;transition:transform .35s ease-out;}
.sub-card:hover figure img{transform:scale(1.04);}
.sub-card .body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1;}
.sub-card h3{font-size:15.5px;line-height:1.45;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.sub-card h3 a:hover{color:var(--brand-400);}
.sub-card p{font-size:13.5px;color:var(--text-2);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.sub-card .meta{margin-top:auto;padding-top:10px;border-top:1px solid var(--line);}
.sub-card .meta .arrow{margin-left:auto;color:var(--brand-400);}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:36px 20px;
}
.empty-state svg{width:48px;height:48px;stroke:var(--text-3);fill:none;stroke-width:1.4;}
.empty-state p{font-size:14px;color:var(--text-2);}

/* ---------- compare ---------- */
.compare{display:grid;gap:24px;align-items:start;}
@media (min-width:1024px){.compare{grid-template-columns:1fr 68px 1fr;gap:0;}}
.compare-col{padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--bg-1);}
@media (min-width:1024px){
  .compare-col:first-child{border-radius:var(--r-lg) 0 0 var(--r-lg);}
  .compare-col:last-child{border-radius:0 var(--r-lg) var(--r-lg) 0;}
}
.compare-badge{
  display:flex;align-items:center;justify-content:center;
  margin:0 auto;
}
@media (min-width:1024px){.compare-badge{height:100%;}}
.compare-badge span{
  width:52px;height:52px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  background:var(--bg-2);border:1px solid rgba(23,225,194,.4);
  color:var(--brand-400);box-shadow:var(--glow-brand);
}
.compare-col h3{font-size:16px;font-weight:600;margin-bottom:18px;display:flex;align-items:center;gap:8px;}
.cmp-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.cmp-item:last-child{border-bottom:none;padding-bottom:0;}
.cmp-item .ci{
  width:22px;height:22px;border-radius:50%;flex-shrink:0;margin-top:5px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
}
.ci-x{background:rgba(255,120,120,.10);border:1px solid rgba(255,120,120,.4);color:#FF8A8A;}
.ci-v{background:rgba(23,225,194,.10);border:1px solid rgba(23,225,194,.45);color:var(--brand-400);}
.cmp-item p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.compare-bars{margin-top:34px;display:grid;gap:18px;}
.bar-row{display:grid;gap:8px;}
.bar-top{display:flex;justify-content:space-between;font-size:13.5px;color:var(--text-2);}
.bar-track{height:10px;border-radius:999px;background:rgba(255,255,255,.05);overflow:hidden;border:1px solid var(--line);}
.bar-fill{height:100%;border-radius:999px;transition:width .6s ease-out;}
.bar-fill.warn{background:linear-gradient(90deg,rgba(255,138,138,.35),rgba(255,138,138,.8));}
.bar-fill.good{background:linear-gradient(90deg,rgba(23,225,194,.35),var(--brand-500));}

/* ---------- faq ---------- */
.faq-layout{display:grid;gap:28px;}
@media (min-width:1024px){.faq-layout{grid-template-columns:5fr 7fr;gap:48px;align-items:start;}}
.faq-aside{position:static;}
@media (min-width:1024px){.faq-aside{position:sticky;top:104px;}}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-1);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out;}
.faq-item:hover{border-color:rgba(23,225,194,.3);}
.faq-item.is-open{border-color:rgba(23,225,194,.42);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.5;
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:var(--brand-500);opacity:0;transition:opacity .2s ease-out;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px;}
.faq-q .chev{
  width:24px;height:24px;flex-shrink:0;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:transform .26s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq-item.is-open .chev{transform:rotate(45deg);color:var(--brand-400);border-color:rgba(23,225,194,.45);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- form ---------- */
.cta-card{display:grid;gap:0;overflow:hidden;}
@media (min-width:1024px){.cta-card{grid-template-columns:1.12fr 1fr;}}
.cta-form-side{padding:26px;}
@media (min-width:1024px){.cta-form-side{padding:34px;}}
.cta-info-side{
  padding:26px;background:rgba(5,10,20,.42);border-top:1px solid var(--line);
}
@media (min-width:1024px){
  .cta-info-side{padding:34px;border-top:none;border-left:1px solid var(--line);}
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.field .req{color:var(--brand-400);margin-left:4px;}
.control{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  font-size:15px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
textarea.control{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.control::placeholder{color:var(--text-3);}
.control:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,225,194,.14);}
select.control{
  appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
  padding-right:40px;
}
.form-row{display:grid;gap:0;}
@media (min-width:640px){.form-row{grid-template-columns:1fr 1fr;gap:0 16px;}}
.form-tip{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.6;}
.form-actions{margin-top:22px;}
@media (max-width:639px){.form-actions .btn{width:100%;}}
.info-point{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);}
.info-point:last-of-type{border-bottom:none;}
.info-point .ip-ico{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;margin-top:3px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,225,194,.09);border:1px solid rgba(23,225,194,.32);
}
.info-point .ip-ico svg{width:14px;height:14px;stroke:var(--brand-400);fill:none;stroke-width:2;}
.info-point h4{font-size:15px;font-weight:600;color:var(--text-1);}
.info-point p{font-size:14px;color:var(--text-2);margin-top:3px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:0;border-top:1px solid var(--line);
  background:rgba(7,11,22,.86);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--brand-500),rgba(124,92,255,.6),transparent 78%);
  opacity:.75;
}
.footer-grid{display:grid;gap:32px;padding:48px 0 36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px;}}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em;}
.footer-col p{font-size:13.5px;color:var(--text-2);line-height:1.85;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:13.5px;color:var(--text-2);
  transition:color .2s ease-out,transform .2s ease-out;
  display:inline-block;
}
.footer-links a:hover{color:var(--brand-400);transform:translateX(2px);}
.footer-links a:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:4px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 24px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block;margin:0 8px;vertical-align:middle;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --brand-400:#4BF0D6;
  --brand-500:#17E1C2;
  --brand-600:#0FB79C;
  --accent-500:#FFB020;
  --accent-600:#E09410;
  --violet-500:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9B8D0;
  --text-3:#6B7C99;
  --line:rgba(120,180,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --glow-brand:0 0 0 1px rgba(23,225,194,.35),0 8px 30px -8px rgba(23,225,194,.45);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 6px 24px -12px rgba(0,0,0,.6);
  --shadow-lift:0 14px 40px -16px rgba(0,0,0,.7);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 8% -6%, rgba(23,225,194,.16), transparent 62%),
    radial-gradient(760px 480px at 96% 8%, rgba(124,92,255,.12), transparent 60%),
    linear-gradient(rgba(120,180,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.045) 1px, transparent 1px);
  background-size:auto,auto,56px 56px,56px 56px;
  background-attachment:fixed;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text-1);}
p{margin:0;}
::selection{background:rgba(23,225,194,.28);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B16;}
::-webkit-scrollbar-thumb{background:rgba(23,225,194,.32);border-radius:999px;border:2px solid #070B16;}
::-webkit-scrollbar-thumb:hover{background:rgba(23,225,194,.5);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media(min-width:640px){.container{padding:0 28px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
@media(min-width:1536px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
  border-bottom:1px solid transparent;
  background:transparent;
}
.site-header.scrolled{
  background:rgba(8,12,24,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:60px;display:flex;align-items:center;justify-content:space-between;gap:18px;
}
@media(min-width:1024px){.header-inner{height:72px;gap:28px;}}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(17,26,46,.7);border:1px solid var(--glass-line);
  box-shadow:0 0 0 1px rgba(23,225,194,.18) inset;
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{
  font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  background:linear-gradient(92deg,#EAF2FF 12%,#4BF0D6 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@media(min-width:1024px){.logo-text{font-size:17px;}}

.nav-links{display:none;}
@media(min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:26px;}
}
.nav-link{
  position:relative;font-size:14.5px;letter-spacing:.04em;color:var(--text-2);
  padding:6px 0;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:60%;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-400));
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
  border-radius:2px;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}

.header-right{display:flex;align-items:center;gap:10px;}
.status-badge{
  display:none;align-items:center;gap:6px;font-size:12.5px;color:var(--text-2);
  padding:6px 12px;border-radius:999px;border:1px solid var(--glass-line);
  background:rgba(17,26,46,.55);
}
.status-badge .dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,225,194,.16);
}
@media(min-width:1180px){.status-badge{display:inline-flex;}}
.countdown-pill{
  display:none;align-items:center;gap:8px;font-size:12.5px;color:var(--accent-500);
  padding:6px 12px;border-radius:999px;border:1px solid rgba(255,176,32,.4);
  background:rgba(255,176,32,.06);font-variant-numeric:tabular-nums;
}
.countdown-pill .cd-num{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.06em;}
@media(min-width:1280px){.countdown-pill{display:inline-flex;}}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(180deg,#FFC155,var(--accent-500));
  color:#1A1204;font-weight:700;font-size:14.5px;letter-spacing:.02em;
  padding:11px 20px;border-radius:var(--radius-sm);border:none;cursor:pointer;
  box-shadow:0 10px 26px -12px rgba(255,176,32,.75);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
  white-space:nowrap;min-height:44px;
}
.btn-primary:hover{background:linear-gradient(180deg,#FFB43A,var(--accent-600));transform:translateY(-1px);box-shadow:0 14px 32px -12px rgba(255,176,32,.9);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg-0),0 0 0 4px rgba(23,225,194,.8);}
.btn-sm{padding:9px 16px;font-size:13.5px;min-height:38px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-400);font-weight:600;font-size:14.5px;
  padding:11px 20px;border-radius:var(--radius-sm);border:1px solid rgba(23,225,194,.55);
  cursor:pointer;transition:background var(--ease),color var(--ease),transform var(--ease);
  min-height:44px;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(23,225,194,.12);color:#8FF7E6;transform:translateY(-1px);}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg-0),0 0 0 4px rgba(23,225,194,.7);}
.link-text{
  color:var(--brand-400);font-weight:600;text-decoration:underline;
  text-underline-offset:3px;text-decoration-thickness:1px;transition:color var(--ease),padding-left var(--ease);
}
.link-text:hover{color:#8FF7E6;padding-left:2px;}

.menu-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(17,26,46,.6);display:grid;place-items:center;gap:4px;cursor:pointer;
}
.menu-toggle span{display:block;width:17px;height:1.6px;background:var(--text-1);border-radius:2px;}
@media(min-width:1024px){.menu-toggle{display:none;}}
.menu-toggle:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(23,225,194,.75);}

.drawer-mask{position:fixed;inset:0;background:rgba(3,5,12,.62);z-index:78;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);z-index:80;
  background:rgba(10,16,32,.92);backdrop-filter:blur(16px);border-left:1px solid var(--glass-line);
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(105%);transition:transform 240ms ease-out;
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer .drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.12em;margin-bottom:10px;}
.mobile-drawer a.drawer-link{
  padding:13px 14px;border-radius:12px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;transition:background var(--ease),color var(--ease);
}
.mobile-drawer a.drawer-link:hover{background:rgba(23,225,194,.1);color:var(--text-1);}
.mobile-drawer a.drawer-link.active{color:var(--text-1);border-color:var(--line);background:rgba(17,26,46,.7);}
.mobile-drawer .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ---------- breadcrumb ---------- */
.page-top{padding:26px 0 6px;}
@media(min-width:1024px){.page-top{padding:36px 0 8px;}}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--brand-400);}
.breadcrumb .sep{color:rgba(120,180,255,.28);}
.breadcrumb .current{
  color:var(--text-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- article head ---------- */
.article-grid{display:grid;grid-template-columns:1fr;gap:34px;padding:26px 0 0;}
@media(min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;padding-top:34px;}
}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);line-height:1.22;letter-spacing:-.01em;
  margin-top:12px;margin-bottom:16px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--text-2);padding-bottom:6px;
}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  border:1px solid rgba(23,225,194,.45);background:rgba(23,225,194,.08);
  color:var(--brand-400);font-size:12.5px;font-weight:600;
}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.article-cover{
  margin:22px 0 0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover;}
@media(max-width:640px){.article-cover img{aspect-ratio:16/10;}}

/* ---------- article body ---------- */
.article-body{
  max-width:760px;margin:0 auto;padding:30px 0 8px;
  font-size:16px;line-height:1.85;color:var(--text-2);
}
.article-body p{margin:1.4em 0;}
.article-body strong{color:var(--text-1);}
.article-body h2{
  font-size:clamp(20px,2.3vw,26px);color:var(--text-1);line-height:1.35;
  margin:32px 0 14px;padding-left:12px;border-left:3px solid var(--brand-500);
}
.article-body h3{
  font-size:19px;color:var(--brand-400);font-weight:600;margin:26px 0 10px;
}
.article-body h4{font-size:16.5px;color:var(--text-1);margin:20px 0 8px;}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:1.4em;}
.article-body li{margin:.6em 0;}
.article-body li::marker{color:var(--brand-500);}
.article-body a{
  color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;
  transition:color var(--ease);
}
.article-body a:hover{color:#8FF7E6;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:2px solid var(--brand-500);
  background:rgba(17,26,46,.55);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-1);font-size:16px;
}
.article-body blockquote p{margin:.5em 0;}
.article-body img{
  width:100%;border-radius:12px;margin:24px auto;border:1px solid var(--line);
}
.article-body figure{margin:24px 0;}
.article-body figcaption,.article-body img+p{
  font-size:13px;color:var(--text-3);text-align:center;margin-top:-14px;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:22px 0;font-size:14.5px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;
}
.article-body th{background:rgba(17,26,46,.8);color:var(--text-1);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;
  background:var(--bg-2);padding:2px 6px;border-radius:6px;color:var(--brand-400);
}
.article-body pre{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px;overflow-x:auto;margin:20px 0;
}
.article-body pre code{background:none;padding:0;color:var(--text-2);}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-lg);
  background:rgba(17,26,46,.45);padding:52px 24px;text-align:center;
}
.empty-state .es-icon{
  width:48px;height:48px;margin:0 auto 16px;display:grid;place-items:center;
  border-radius:14px;border:1px solid var(--line);background:rgba(10,16,32,.8);
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* ---------- related ---------- */
.related-block{max-width:760px;margin:0 auto;padding:34px 0 0;border-top:1px solid var(--line);}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:20px;}
.related-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{
  display:flex;flex-direction:column;border-radius:var(--radius-md);overflow:hidden;
  background:rgba(17,26,46,.5);border:1px solid var(--line);
  box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(23,225,194,.42);box-shadow:var(--shadow-lift);}
.card:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg-0),0 0 0 4px rgba(23,225,194,.8);}
.card-thumb{position:relative;overflow:hidden;background:linear-gradient(135deg,#0E1830,#123048);}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{
  font-size:15.5px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{font-size:12.5px;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:8px;}

.back-actions{max-width:760px;margin:30px auto 0;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:18px;}
@media(min-width:1024px){
  .article-side{position:sticky;top:96px;align-self:start;}
}
.side-card{
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:rgba(17,26,46,.5);padding:18px;
}
.side-card h3{font-size:15px;margin-bottom:14px;letter-spacing:.02em;}
.side-card .side-hint{font-size:12.5px;color:var(--text-3);margin-bottom:14px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.side-link:hover{background:rgba(23,225,194,.1);color:var(--text-1);border-color:rgba(23,225,194,.3);}
.side-link span.arrow{color:var(--brand-500);}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.hot-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed rgba(120,180,255,.12);}
.hot-list li:last-child{border-bottom:none;}
.hot-list .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;
  color:var(--brand-500);min-width:18px;padding-top:2px;
}
.hot-list a{
  font-size:14px;color:var(--text-2);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.hot-list a:hover{color:var(--brand-400);}

/* ---------- CTA band ---------- */
.cta-band{
  margin:56px 0 0;border-radius:var(--radius-lg);
  border:1px solid rgba(23,225,194,.35);
  background:linear-gradient(120deg,rgba(23,225,194,.1),rgba(10,16,32,.9) 58%);
  padding:26px 24px;display:flex;flex-direction:column;gap:16px;
  box-shadow:var(--shadow-card);
}
@media(min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:28px 32px;}
}
.cta-band h2{font-size:20px;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--text-2);max-width:62ch;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:72px;border-top:1px solid var(--line);
  background:rgba(6,9,18,.86);position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:180px;height:4px;
  background:linear-gradient(90deg,var(--brand-500),rgba(23,225,194,0));
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;padding:44px 0 30px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 36px;}}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:var(--text-2);transition:color var(--ease),transform var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--brand-400);transform:translateX(2px);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12.5px;color:var(--text-2);padding:5px 11px;border-radius:999px;
  border:1px solid var(--glass-line);background:rgba(17,26,46,.6);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .dot{
  display:inline-block;width:4px;height:4px;border-radius:50%;
  background:var(--text-3);margin:0 10px;vertical-align:middle;
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --brand-400:#4BF0D6;
  --brand-500:#17E1C2;
  --brand-600:#0FB79C;
  --accent-500:#FFB020;
  --accent-600:#E09410;
  --violet-500:#7C5CFF;
  --danger:#FF7A7A;
  --text-1:#EAF2FF;
  --text-2:#A9B8D0;
  --text-3:#6B7C99;
  --line:rgba(120,180,255,0.14);
  --glass-line:rgba(255,255,255,0.10);
  --glow-brand:0 0 0 1px rgba(23,225,194,.35), 0 8px 30px -8px rgba(23,225,194,.45);
  --shadow-card:0 6px 24px -12px rgba(0,0,0,.6);
  --shadow-lift:0 14px 40px -16px rgba(0,0,0,.7);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(880px 520px at 10% -8%, rgba(23,225,194,.16), transparent 62%),
    radial-gradient(760px 480px at 94% 6%, rgba(124,92,255,.13), transparent 64%),
    linear-gradient(rgba(120,180,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.045) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px}
::selection{background:rgba(23,225,194,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070B16}
::-webkit-scrollbar-thumb{background:rgba(23,225,194,.26);border-radius:999px;border:2px solid #070B16}
::-webkit-scrollbar-thumb:hover{background:rgba(23,225,194,.44)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 28px}}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1536px){.container{max-width:1320px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:60px;
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background-color .22s ease-out,border-color .22s ease-out,backdrop-filter .22s ease-out;
}
@media (min-width:768px){.site-header{height:72px}}
.site-header.is-scrolled{
  background:rgba(5,7,15,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  width:100%;max-width:1240px;margin:0 auto;padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
@media (min-width:768px){.header-inner{padding:0 28px}}
@media (min-width:1024px){.header-inner{padding:0 32px}}
@media (min-width:1536px){.header-inner{max-width:1320px}}

.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(160deg,rgba(23,225,194,.18),rgba(17,26,46,.62));
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:15px;font-weight:600;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}

.nav-links{display:none;align-items:center;gap:28px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;padding:8px 2px;font-size:14.5px;letter-spacing:.02em;
  color:var(--text-2);transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--brand-500);transition:width .2s ease-out;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:60%}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{width:60%}

.header-actions{display:flex;align-items:center;gap:10px}
.status-badge{
  display:none;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:rgba(17,26,46,.55);
  border:1px solid var(--glass-line);white-space:nowrap;
}
@media (min-width:1280px){.status-badge{display:inline-flex}}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 0 3px rgba(23,225,194,.16);
}
.countdown-pill{
  display:none;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:rgba(17,26,46,.55);
  border:1px solid rgba(255,176,32,.35);white-space:nowrap;
}
@media (min-width:1280px){.countdown-pill{display:inline-flex}}
.countdown-pill .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;color:var(--accent-500);font-weight:600;letter-spacing:.04em;
}
.hamburger{
  display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:rgba(17,26,46,.6);
  color:var(--text-1);cursor:pointer;transition:border-color .18s ease-out,background-color .18s ease-out;
}
.hamburger:hover{border-color:rgba(23,225,194,.4);background:rgba(17,26,46,.85)}
@media (min-width:1024px){.hamburger{display:none}}
@media (max-width:639px){.header-actions .btn-header{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:12px;
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--accent-500);color:#1A1206;box-shadow:0 10px 26px -12px rgba(255,176,32,.75)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 16px 34px -14px rgba(255,176,32,.85)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:transparent;border-color:rgba(23,225,194,.55);color:var(--brand-400)}
.btn-ghost:hover{background:rgba(23,225,194,.12);border-color:var(--brand-500);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-400);
  transition:color .18s ease-out,gap .18s ease-out;
}
.btn-text:hover{color:var(--brand-500);gap:10px}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none}
.drawer[data-open="true"]{pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;background:rgba(3,5,12,.7);opacity:0;
  transition:opacity .24s ease-out;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
}
.drawer[data-open="true"] .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  background:rgba(10,16,32,.94);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-left:1px solid var(--glass-line);
  transform:translateX(102%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;padding:20px;gap:16px;overflow-y:auto;
}
.drawer[data-open="true"] .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);background:rgba(17,26,46,.6);color:var(--text-2);cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.icon-btn:hover{color:var(--text-1);border-color:rgba(23,225,194,.4)}
.drawer-nav{display:grid;gap:8px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.drawer-link:hover{color:var(--text-1);border-color:var(--line);background:rgba(17,26,46,.7)}
.drawer-link.active{color:var(--text-1);border-color:rgba(23,225,194,.35);background:rgba(23,225,194,.08)}
.drawer-foot{margin-top:auto;display:grid;gap:12px}
.drawer-note{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- hero ---------- */
.hero{position:relative;padding:44px 0 36px}
@media (min-width:1024px){.hero{padding:64px 0 48px}}
.hero-grid{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:44px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--brand-400);
  background:rgba(23,225,194,.08);border:1px solid rgba(23,225,194,.28);
}
.hero-title{
  margin-top:18px;font-size:clamp(28px,4.2vw,46px);line-height:1.16;font-weight:700;letter-spacing:-0.01em;
}
.hero-sub{
  margin-top:16px;font-size:clamp(15px,1.6vw,17px);line-height:1.8;color:var(--text-2);max-width:60ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);background:rgba(17,26,46,.55);
  border:1px solid var(--glass-line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.pill i{width:5px;height:5px;border-radius:50%;background:var(--brand-500);display:inline-block}
.hero-banner{
  position:relative;border-radius:var(--r-lg);overflow:hidden;height:220px;
  border:1px solid var(--line);box-shadow:0 24px 60px -34px rgba(0,0,0,.95);
}
@media (min-width:768px){.hero-banner{height:260px}}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.72;transform:scale(1.02)}
.hero-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.2),rgba(5,7,15,.88));
}
.hero-banner-cap{
  position:absolute;left:18px;right:18px;bottom:14px;z-index:2;
  font-size:12.5px;line-height:1.6;color:var(--text-2);
}

/* ---------- section base ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-tight{padding:40px 0}
@media (min-width:1024px){.section-tight{padding:56px 0}}

/* ---------- layout + toc ---------- */
.layout{display:grid;gap:32px}
@media (min-width:1024px){.layout{grid-template-columns:262px 1fr;gap:52px;align-items:start}}
.toc{
  border:1px solid var(--line);border-radius:var(--r-md);padding:18px;
  background:rgba(10,16,32,.66);box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.toc{position:sticky;top:96px}}
.toc-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px}
.toc-list{display:grid;gap:4px}
.toc-link{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.toc-link:hover{color:var(--text-1);background:rgba(17,26,46,.8)}
.toc-link.active{color:var(--brand-400);background:rgba(23,225,194,.08);border-left-color:var(--brand-500)}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.toc-note{font-size:12.5px;line-height:1.7;color:var(--text-3);margin-bottom:12px}

/* ---------- flow ---------- */
.flow-block{padding:36px 0}
.flow > .flow-block + .flow-block{border-top:1px solid var(--line)}
.flow-block:first-child{padding-top:0}
.block-title{font-size:clamp(21px,2.4vw,29px);line-height:1.3;font-weight:700}
.block-lead{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:68ch}
.block-tag{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;
  font-size:12.5px;letter-spacing:.06em;color:var(--brand-400);
}
.block-tag span{width:18px;height:1px;background:var(--brand-500);display:inline-block;opacity:.7}

.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.75;color:var(--text-1)}
.check-list .ico{
  flex:0 0 auto;width:22px;height:22px;margin-top:4px;border-radius:7px;display:grid;place-items:center;
  background:rgba(23,225,194,.12);border:1px solid rgba(23,225,194,.3);
}
.check-list .ico svg{width:13px;height:13px}

.step-list{margin-top:24px;display:grid;gap:16px}
.step-item{
  display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start;
  padding:18px;border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,26,46,.66),rgba(10,16,32,.66));
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step-item:hover{transform:translateY(-3px);border-color:rgba(23,225,194,.32);box-shadow:var(--shadow-lift)}
.step-num{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--brand-400);
  background:rgba(23,225,194,.09);border:1px solid rgba(23,225,194,.3);
}
.step-title{font-size:16.5px;font-weight:600;line-height:1.5}
.step-text{margin-top:6px;font-size:14.5px;line-height:1.75;color:var(--text-2)}

.compare-grid{display:grid;gap:16px;margin-top:24px}
@media (min-width:768px){.compare-grid{grid-template-columns:1fr 1fr}}
.compare-card{
  padding:22px;border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,26,46,.72),rgba(10,16,32,.7));
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.compare-card.warn{border-color:rgba(255,122,122,.26)}
.compare-card.ok{border-color:rgba(23,225,194,.3)}
.compare-head{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600}
.compare-head .mark{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:14px;font-weight:700}
.warn .mark{background:rgba(255,122,122,.14);color:var(--danger);border:1px solid rgba(255,122,122,.3)}
.ok .mark{background:rgba(23,225,194,.14);color:var(--brand-400);border:1px solid rgba(23,225,194,.32)}
.mini-list{margin-top:16px;display:grid;gap:10px}
.mini-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--text-3);
}
.warn .mini-list li::before{background:rgba(255,122,122,.75)}
.ok .mini-list li::before{background:var(--brand-500)}

.split{display:grid;gap:24px;margin-top:24px;align-items:center}
@media (min-width:900px){.split{grid-template-columns:5fr 7fr;gap:32px}}
.split-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  box-shadow:0 20px 50px -30px rgba(0,0,0,.9);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;opacity:.82;transition:transform .3s ease-out}
.split-media:hover img{transform:scale(1.04)}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;font-size:12.5px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.9));
}
.note-box{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(17,26,46,.55);
  font-size:14.5px;line-height:1.8;color:var(--text-2);
}
.note-box strong{color:var(--brand-400);font-weight:600}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;margin-top:26px}
.faq-item{
  position:relative;overflow:hidden;padding:20px 22px 22px 24px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(10,16,32,.7);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.faq-item:hover{border-color:rgba(23,225,194,.28);transform:translateY(-2px)}
.faq-item::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;border-radius:2px;background:var(--brand-500);
}
.faq-q{font-size:16.5px;font-weight:600;line-height:1.6}
.faq-a{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- cta bar ---------- */
.cta-bar{
  display:grid;gap:20px;align-items:center;padding:26px;border-radius:var(--r-lg);
  border:1px solid rgba(23,225,194,.3);
  background:linear-gradient(120deg,rgba(17,26,46,.88),rgba(10,16,32,.72));
  box-shadow:var(--glow-brand);
}
@media (min-width:768px){.cta-bar{grid-template-columns:1fr auto;padding:30px 32px}}
.cta-title{font-size:clamp(18px,2vw,22px);font-weight:700;line-height:1.4}
.cta-text{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-2);max-width:62ch}
@media (max-width:767px){.cta-bar .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:72px;padding:56px 0 28px;
  border-top:1px solid var(--line);background:rgba(6,9,18,.72);
}
@media (min-width:1024px){.site-footer{margin-top:96px}}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:140px;height:4px;
  border-radius:0 0 4px 0;background:linear-gradient(90deg,var(--brand-500),rgba(23,225,194,0));
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);letter-spacing:.04em;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:var(--text-2);
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer-links a:hover{color:var(--brand-400);transform:translateX(2px)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;
  font-size:12px;color:var(--text-2);background:rgba(17,26,46,.6);border:1px solid var(--line);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--text-3);margin:0 8px;vertical-align:middle}

.fade-in{animation:fadeUp .6s ease-out both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  .fade-in{animation:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --brand-400:#4BF0D6;
  --brand-500:#17E1C2;
  --brand-600:#0FB79C;
  --accent-500:#FFB020;
  --accent-600:#E09410;
  --violet-500:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9B8D0;
  --text-3:#6B7C99;
  --line:rgba(120,180,255,.14);
  --glass-line:rgba(255,255,255,.10);
  --glow-brand:0 0 0 1px rgba(23,225,194,.35), 0 8px 30px -8px rgba(23,225,194,.45);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 6px 24px -12px rgba(0,0,0,.6);
  --shadow-lift:0 14px 40px -16px rgba(0,0,0,.7);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 440px at 10% 6%, rgba(23,225,194,.15), transparent 66%),
    radial-gradient(560px 420px at 92% 84%, rgba(124,92,255,.13), transparent 70%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,180,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 76%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:rgba(23,225,194,.28);border-radius:99px;border:2px solid var(--bg-0);}
::-webkit-scrollbar-thumb:hover{background:rgba(23,225,194,.46);}
::selection{background:rgba(23,225,194,.28);}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:2;
}
@media (min-width:640px){.container{padding:0 28px;}}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (min-width:1536px){.container{max-width:1320px;}}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  height:60px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
@media (min-width:1024px){.site-header{height:72px;}}
.site-header.scrolled{
  background:rgba(5,7,15,.74);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;width:100%;
}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border-radius:10px;background:rgba(23,225,194,.10);
  border:1px solid rgba(23,225,194,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{
  font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--text-1);
  white-space:nowrap;
}
@media (min-width:640px){.logo-text{font-size:17px;}}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{
    display:flex;align-items:center;gap:6px;
    margin:0 auto;
  }
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    height:44px;padding:0 14px;
    font-size:14.5px;letter-spacing:.02em;
    color:var(--text-2);
    transition:color .18s ease-out;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:6px;
    width:0;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--brand-500),var(--brand-400));
    transform:translateX(-50%);
    transition:width .2s ease-out;
  }
  .nav-link:hover{color:var(--text-1);}
  .nav-link:hover::after{width:38%;}
  .nav-link.active{color:var(--text-1);font-weight:600;}
  .nav-link.active::after{width:60%;}
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.status-pill,.countdown-pill{
  display:none;
  align-items:center;gap:8px;
  height:32px;padding:0 12px;
  border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(17,26,46,.55);
  border:1px solid var(--line);
  white-space:nowrap;
}
@media (min-width:1280px){.status-pill{display:inline-flex;}}
@media (min-width:1024px){.countdown-pill{display:inline-flex;}}
.status-pill .dot{
  width:7px;height:7px;border-radius:999px;background:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,225,194,.16);
}
.countdown-pill{border-color:rgba(255,176,32,.34);color:#FFD79A;}
.countdown-pill b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:600;color:var(--accent-500);}
.hamburger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:rgba(17,26,46,.6);border:1px solid var(--line);border-radius:12px;
  cursor:pointer;
}
.hamburger span{display:block;height:1.6px;background:var(--text-1);border-radius:2px;transition:.2s ease-out;}
.hamburger span:nth-child(2){width:70%;}
@media (min-width:1024px){.hamburger{display:none;}}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--accent-500);color:#1A1206;
  box-shadow:0 10px 30px -14px rgba(255,176,32,.8);
}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 16px 38px -14px rgba(255,176,32,.85);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  background:transparent;color:var(--brand-400);
  border-color:rgba(23,225,194,.5);
}
.btn-ghost:hover{background:rgba(23,225,194,.12);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0) scale(.99);}
.btn-line{
  background:rgba(17,26,46,.6);color:var(--text-1);
  border-color:var(--glass-line);
}
.btn-line:hover{border-color:rgba(23,225,194,.45);color:var(--brand-400);}
.tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 13px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(17,26,46,.6);
  border:1px solid var(--glass-line);
  white-space:nowrap;
}
.tag-brand{color:var(--brand-400);border-color:rgba(23,225,194,.36);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-400);font-size:14px;font-weight:600;
  text-decoration:underline;text-underline-offset:3px;
  transition:color .18s ease-out,gap .18s ease-out;
}
.text-link:hover{color:var(--brand-500);gap:10px;}

/* ============ Hero（居中版） ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 48px;text-align:center;}
@media (min-width:768px){.hero{padding:84px 0 60px;}}
@media (min-width:1024px){.hero{padding:104px 0 72px;}}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.hero-veil{
  position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(680px 400px at 50% 12%, rgba(23,225,194,.18), transparent 70%),
    linear-gradient(180deg, rgba(5,7,15,.55) 0%, rgba(5,7,15,.86) 62%, var(--bg-0) 100%);
}
.hero-inner{max-width:860px;margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  height:32px;padding:0 14px;border-radius:999px;
  font-size:12.5px;color:var(--brand-400);
  background:rgba(23,225,194,.08);
  border:1px solid rgba(23,225,194,.3);
}
.eyebrow .pulse{
  width:7px;height:7px;border-radius:999px;background:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,225,194,.16);
}
.hero h1{
  margin-top:22px;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero-sub{
  margin:18px auto 0;
  max-width:660px;
  font-size:16px;line-height:1.8;color:var(--text-2);
}
.hero-cta{
  margin-top:30px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
}
@media (max-width:639px){
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
}
.hero-divider{
  margin:40px auto 22px;
  max-width:620px;
  border-top:1px dashed var(--line);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}

/* ============ 板块骨架 ============ */
.section{padding:56px 0;position:relative;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--brand-400);
  text-transform:uppercase;
}
.sec-kicker::before{
  content:"";width:18px;height:1.5px;background:var(--brand-500);border-radius:2px;
}
.sec-head h2{
  margin-top:14px;
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;font-weight:700;
}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:15.5px;max-width:70ch;}

/* ============ 准备清单：非对称栅格 ============ */
.prep-grid{
  display:grid;grid-template-columns:1fr;gap:20px;
}
@media (min-width:1024px){
  .prep-grid{grid-template-columns:5fr 7fr;gap:24px;align-items:start;}
}
.glass-card{
  position:relative;
  background:rgba(17,26,46,.55);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.16),rgba(255,255,255,0));
}
.solid-card{
  position:relative;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.solid-card:hover{transform:translateY(-4px);border-color:rgba(23,225,194,.34);box-shadow:var(--shadow-lift);}
.prep-main{padding:0 0 26px;}
.prep-main .cover{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-bottom:1px solid var(--line);
}
.prep-main .prep-body{padding:24px 26px 0;}
.prep-main h3{font-size:20px;font-weight:600;line-height:1.35;}
.prep-main p{margin-top:12px;color:var(--text-2);font-size:15px;}
.check-list{margin-top:18px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.check-list li svg{flex:0 0 18px;margin-top:4px;}
.prep-side{display:grid;gap:20px;}
@media (min-width:768px) and (max-width:1023px){.prep-side{grid-template-columns:1fr 1fr;}}
.prep-side .solid-card{padding:24px 24px 22px;}
.prep-side h3{font-size:18px;font-weight:600;}
.prep-side p{margin-top:10px;font-size:14.5px;color:var(--text-2);}
.mini-thumb{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;
  border:1px solid var(--line);margin-bottom:16px;
}
.icon-line{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(23,225,194,.09);border:1px solid rgba(23,225,194,.28);
  margin-bottom:14px;
}
.icon-line svg{width:20px;height:20px;}

/* ============ 时间轴步骤流 ============ */
.timeline{max-width:900px;margin:0 auto;}
.tl-item{position:relative;padding:0 0 26px 66px;}
@media (min-width:768px){.tl-item{padding:0 0 32px 82px;}}
.tl-item::before{
  content:"";position:absolute;left:22px;top:52px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(23,225,194,.5),rgba(23,225,194,.05));
}
@media (min-width:768px){.tl-item::before{left:26px;}}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;left:0;top:0;
  width:46px;height:46px;border-radius:999px;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:14px;font-weight:700;
  color:var(--brand-400);
  background:var(--bg-2);
  border:1px solid rgba(23,225,194,.4);
  box-shadow:var(--glow-brand);
}
@media (min-width:768px){.tl-dot{width:54px;height:54px;font-size:15px;}}
.tl-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
@media (min-width:768px){.tl-card{padding:26px 28px;}}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(23,225,194,.32);box-shadow:var(--shadow-lift);}
.tl-card h3{font-size:19px;font-weight:600;line-height:1.35;}
.tl-card > p{margin-top:10px;font-size:15px;color:var(--text-2);}
.tl-meta{
  margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;
}
.tl-note{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--text-3);
}

/* ============ 引用块 ============ */
.quote{
  max-width:920px;margin:0 auto;
  padding:30px 28px;
  border-left:3px solid var(--brand-500);
  background:linear-gradient(90deg,rgba(23,225,194,.09),rgba(23,225,194,0) 82%);
  border-radius:0 var(--r-md) var(--r-md) 0;
}
@media (min-width:768px){.quote{padding:38px 40px;}}
.quote p{
  font-size:clamp(20px,2.2vw,22px);
  line-height:1.6;font-weight:500;color:var(--text-1);
}
.quote cite{
  display:block;margin-top:16px;
  font-size:13.5px;font-style:normal;color:var(--text-3);
}

/* ============ 对比小卡（两列） ============ */
.compare-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.compare-grid{grid-template-columns:1fr 1fr;gap:24px;}}
.compare-card{padding:26px 24px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-1);}
.compare-card.is-risk{border-color:rgba(255,120,120,.24);}
.compare-card.is-safe{border-color:rgba(23,225,194,.3);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.compare-head h3{font-size:18px;font-weight:600;}
.compare-head .badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;border:1px solid var(--glass-line);color:var(--text-2);
}
.compare-card.is-risk .badge{border-color:rgba(255,120,120,.34);color:#FFA4A4;}
.compare-card.is-safe .badge{border-color:rgba(23,225,194,.36);color:var(--brand-400);}
.cmp-list{display:grid;gap:2px;}
.cmp-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.cmp-item:last-child{border-bottom:0;}
.cmp-item svg{flex:0 0 18px;margin-top:5px;}
.cmp-item strong{display:block;color:var(--text-1);font-weight:600;font-size:14.5px;margin-bottom:2px;}

/* ============ CTA 表单 ============ */
.cta-panel{
  position:relative;
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:28px 22px;
  border-radius:var(--r-lg);
  background:rgba(17,26,46,.6);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.18),rgba(255,255,255,0));
}
@media (min-width:768px){.cta-panel{padding:38px 34px;}}
@media (min-width:1024px){.cta-panel{grid-template-columns:1.05fr .95fr;gap:44px;padding:44px 40px;}}
.cta-panel h2{font-size:clamp(22px,2.3vw,30px);line-height:1.3;font-weight:700;}
.cta-panel .lead{margin-top:14px;font-size:15px;color:var(--text-2);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.field .control{position:relative;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
  appearance:none;
}
.field select{padding-right:42px;cursor:pointer;}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,225,194,.16);
}
.field .control::after{
  content:"";position:absolute;right:16px;top:50%;
  width:8px;height:8px;margin-top:-6px;
  border-right:1.6px solid var(--text-3);
  border-bottom:1.6px solid var(--text-3);
  transform:rotate(45deg);
  pointer-events:none;
}
.field .control.no-arrow::after{display:none;}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-3);}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;
  border-radius:var(--r-sm);
  background:rgba(23,225,194,.1);
  border:1px solid rgba(23,225,194,.34);
  color:var(--brand-400);font-size:13.5px;
}
.point-list{display:grid;gap:16px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;}
.point-list li svg{flex:0 0 20px;margin-top:4px;}
.point-list strong{display:block;font-size:15px;font-weight:600;color:var(--text-1);}
.point-list span{font-size:14px;color:var(--text-2);}
.contact-alt{
  margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);
  font-size:14px;color:var(--text-2);
}
.contact-alt b{color:var(--text-1);font-weight:600;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:24px;
  padding:52px 0 28px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;width:120px;height:4px;border-radius:0 0 4px 0;
  background:linear-gradient(90deg,var(--brand-500),rgba(23,225,194,0));
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text-1);}
.footer-links{display:grid;gap:11px;}
.footer-links a{
  display:inline-block;font-size:14px;color:var(--text-2);
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer-links a:hover{color:var(--brand-400);transform:translateX(2px);}
.footer-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .dot{
  display:inline-block;width:4px;height:4px;border-radius:999px;
  background:var(--text-3);margin:0 8px;vertical-align:middle;
}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(3,5,12,.62);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease-out,visibility .22s ease-out;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(86vw,340px);
  padding:22px;
  display:flex;flex-direction:column;gap:6px;
  background:rgba(10,16,32,.94);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-left:1px solid var(--glass-line);
  transform:translateX(100%);
  transition:transform .24s ease-out;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer .drawer-close{
  width:44px;height:44px;display:grid;place-items:center;
  border-radius:12px;background:rgba(17,26,46,.7);
  border:1px solid var(--line);color:var(--text-2);cursor:pointer;font-size:20px;line-height:1;
}
.drawer a.d-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.drawer a.d-link:hover{background:rgba(23,225,194,.08);color:var(--text-1);border-color:rgba(23,225,194,.24);}
.drawer a.d-link.active{color:var(--brand-400);border-color:rgba(23,225,194,.34);background:rgba(23,225,194,.08);}
.drawer .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.drawer .drawer-foot .btn{width:100%;}
body.no-scroll{overflow:hidden;}