:root{
--red:#ff0000;
--vio:#8b00ff;
--ink:#261717;
--glass:rgba(255,255,255,.1);
--glass-2:rgba(255,255,255,.17);
--stroke:rgba(255,255,255,.16);
--txt:#f6ebec;
--dim:#cfbabe;
--r:28px;
--rail:236px;
--sh:0 24px 60px -34px rgba(0,0,0,.85);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
margin:0;
background:#170e0e;
color:var(--txt);
font-family:"Be Vietnam Pro","Noto Sans",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
font-size:17px;
line-height:1.7;
overflow-x:hidden;
-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{margin:0;line-height:1.22;letter-spacing:-.01em}
section[id]{scroll-margin-top:100px}
.bg{
position:fixed;
inset:-20vmax;
z-index:-1;
pointer-events:none;
background:
radial-gradient(36vmax 36vmax at 15% 8%,rgba(255,0,0,.5),transparent 62%),
radial-gradient(42vmax 42vmax at 86% 20%,rgba(139,0,255,.48),transparent 63%),
radial-gradient(52vmax 52vmax at 60% 96%,rgba(255,0,0,.22),transparent 66%),
linear-gradient(180deg,#241416,#150d0d);
}
.rail{
position:fixed;
inset:0 auto 0 0;
width:var(--rail);
z-index:30;
display:flex;
flex-direction:column;
gap:16px;
padding:20px 14px;
background:rgba(30,18,18,.62);
border-right:1px solid var(--stroke);
backdrop-filter:blur(18px) saturate(130%);
-webkit-backdrop-filter:blur(18px) saturate(130%);
overflow-y:auto;
}
.brand{
display:inline-flex;
align-items:center;
justify-content:center;
width:46px;
height:46px;
border-radius:16px;
background:linear-gradient(140deg,rgba(255,0,0,.55),rgba(139,0,255,.55));
border:1px solid var(--stroke);
text-decoration:none;
box-shadow:0 12px 26px -14px rgba(255,0,0,.9);
transition:transform .25s ease;
}
.brand:hover{transform:rotate(-6deg) scale(1.05)}
.brand-img{width:26px;height:26px;object-fit:contain;border-radius:8px}
.rail-list{
list-style:none;
margin:0;
padding:0;
display:flex;
flex-direction:column;
gap:4px;
}
.rail-list a{
display:flex;
align-items:center;
gap:10px;
min-height:44px;
padding:10px 12px;
border-radius:14px;
text-decoration:none;
color:#f2e6e7;
font-size:.95rem;
font-weight:500;
transition:background .2s ease,transform .2s ease,color .2s ease;
}
.rail-list a:hover,.rail-list a:focus-visible{background:var(--glass-2);color:#fff;transform:translateX(3px)}
.ico{flex:none;opacity:.8}
.rail-call{
margin-top:auto;
display:flex;
align-items:center;
justify-content:center;
gap:8px;
min-height:46px;
border-radius:16px;
text-decoration:none;
font-weight:600;
font-size:.95rem;
color:#fff;
background:linear-gradient(120deg,var(--red),var(--vio));
box-shadow:0 18px 34px -18px rgba(255,0,0,.95);
transition:transform .2s ease,filter .2s ease;
}
.rail-call:hover{transform:translateY(-2px);filter:brightness(1.08)}
.page{
margin-left:var(--rail);
padding:26px 26px 0;
min-height:100vh;
display:flex;
flex-direction:column;
}
.shell{
display:grid;
grid-template-columns:minmax(0,1fr) 296px;
gap:26px;
align-items:start;
max-width:1220px;
width:100%;
}
.doc{min-width:0;max-width:840px}
.hero{
display:grid;
grid-template-columns:.85fr 1.15fr;
align-items:center;
gap:22px;
min-height:70vh;
padding:26px;
margin-bottom:22px;
border-radius:var(--r);
background:rgba(255,255,255,.07);
border:1px solid var(--stroke);
backdrop-filter:blur(16px);
-webkit-backdrop-filter:blur(16px);
box-shadow:var(--sh);
overflow:hidden;
}
.hero-art{
position:relative;
align-self:stretch;
min-height:280px;
border-radius:22px;
background:linear-gradient(150deg,rgba(255,0,0,.42),rgba(139,0,255,.44));
clip-path:polygon(0 0,100% 0,86% 100%,0 100%);
display:grid;
place-items:center;
overflow:hidden;
}
.hero-mark{
width:min(58%,180px);
object-fit:contain;
border-radius:20px;
filter:drop-shadow(0 18px 30px rgba(0,0,0,.45));
}
.orb{position:absolute;border-radius:50%;opacity:.75}
.orb-a{width:150px;height:150px;left:-30px;top:-24px;background:radial-gradient(circle,#ff5a5a,transparent 70%)}
.orb-b{width:190px;height:190px;right:-40px;bottom:-46px;background:radial-gradient(circle,#b45cff,transparent 70%)}
.hero-copy{text-align:center;padding:8px 4px}
.hero-copy h1{
font-size:clamp(2rem,4.6vw,3.25rem);
font-weight:700;
background:linear-gradient(100deg,#fff,#ffd0d0 45%,#e3c4ff);
-webkit-background-clip:text;
background-clip:text;
color:transparent;
}
.hero-lede{margin:16px auto 0;max-width:34ch;color:var(--dim);font-size:1rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px}
.btn{
display:inline-flex;
align-items:center;
justify-content:center;
min-height:46px;
padding:11px 20px;
border-radius:16px;
text-decoration:none;
font-weight:600;
font-size:.95rem;
transition:transform .2s ease,filter .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(120deg,var(--red),var(--vio));color:#fff;box-shadow:0 18px 34px -18px rgba(255,0,0,.9)}
.btn-ghost{background:var(--glass);border:1px solid var(--stroke);color:#fff}
.doc > section:not(.hero){
padding:26px 24px;
margin-bottom:20px;
border-radius:var(--r);
background:var(--glass);
border:1px solid var(--stroke);
backdrop-filter:blur(15px);
-webkit-backdrop-filter:blur(15px);
box-shadow:var(--sh);
}
.doc small{
display:block;
margin-bottom:8px;
font-size:.75rem;
font-weight:700;
letter-spacing:.24em;
color:#ff9db5;
}
.doc h2{font-size:clamp(1.4rem,2.4vw,1.95rem);margin-bottom:14px}
.doc h3{font-size:1.15rem;margin:22px 0 10px}
.doc p,.doc li{color:#ecdfe1}
.doc a{color:#ffb0b0;text-decoration-color:rgba(255,176,176,.5);text-underline-offset:3px}
.doc a:hover{color:#fff}
.doc ul,.doc ol{margin:0 0 1em;padding-left:1.25em}
.doc li{margin-bottom:.45em}
.doc strong{color:#fff}
.doc blockquote{
margin:18px 0;
padding:14px 18px;
border-left:3px solid var(--red);
border-radius:0 16px 16px 0;
background:rgba(255,255,255,.07);
}
.doc blockquote p:last-child{margin:0}
.doc table{width:100%;border-collapse:collapse;font-size:.95rem}
.doc th,.doc td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--stroke)}
.doc img{border-radius:18px;margin:14px 0}
.side{
position:sticky;
top:26px;
padding:20px 18px;
border-radius:var(--r);
background:rgba(255,255,255,.08);
border:1px solid var(--stroke);
backdrop-filter:blur(15px);
-webkit-backdrop-filter:blur(15px);
box-shadow:var(--sh);
}
.side small{display:block;margin-bottom:6px;font-size:.72rem;font-weight:700;letter-spacing:.24em;color:#ff9db5}
.side h2{font-size:1.1rem;margin-bottom:12px}
.side-list{list-style:none;margin:0 0 16px;padding:0;display:flex;flex-direction:column;gap:2px}
.side-list a{
display:flex;
align-items:center;
min-height:40px;
padding:8px 10px;
border-radius:12px;
text-decoration:none;
font-size:.92rem;
color:#e8dade;
transition:background .2s ease,color .2s ease;
}
.side-list a:hover{background:var(--glass-2);color:#fff}
.totop{
display:inline-flex;
align-items:center;
min-height:40px;
padding:0 14px;
border-radius:12px;
background:var(--glass-2);
text-decoration:none;
font-size:.85rem;
color:#fff;
}
.foot{
margin-top:36px;
padding:34px 26px 22px;
border-radius:var(--r) var(--r) 0 0;
background:rgba(255,255,255,.06);
border:1px solid var(--stroke);
border-bottom:0;
backdrop-filter:blur(15px);
-webkit-backdrop-filter:blur(15px);
}
.foot-brand{
margin:0 0 22px;
font-size:clamp(2.4rem,12vw,9rem);
line-height:.92;
font-weight:700;
letter-spacing:-.04em;
white-space:nowrap;
overflow:hidden;
text-overflow:ellipsis;
background:linear-gradient(100deg,#fff,#ff8f8f 42%,#c58bff);
-webkit-background-clip:text;
background-clip:text;
color:transparent;
}
.foot-cols{
display:grid;
grid-template-columns:repeat(3,minmax(0,1fr));
gap:18px;
padding-top:20px;
border-top:1px solid var(--stroke);
}
.foot-cols dl{margin:0}
.foot-cols dt{margin-bottom:6px;font-size:.72rem;font-weight:700;letter-spacing:.2em;color:#ff9db5}
.foot-cols dd{margin:0}
.foot-cols a{
display:inline-flex;
align-items:center;
min-height:40px;
text-decoration:none;
font-size:.92rem;
color:#e4d6d9;
}
.foot-cols a:hover{color:#fff}
.foot-base{
display:flex;
flex-wrap:wrap;
align-items:center;
justify-content:space-between;
gap:8px 20px;
margin-top:20px;
padding-top:14px;
border-top:1px solid var(--stroke);
font-size:.85rem;
color:var(--dim);
}
.copy{margin:0}
.foot-links{margin:0;display:flex;gap:16px}
.foot-links a{display:inline-flex;align-items:center;min-height:40px;text-decoration:none}
@media (prefers-reduced-motion: no-preference){
.doc.anim > section{opacity:0;transform:translateY(18px)}
.doc.anim > section.in{
opacity:1;
transform:none;
transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.3,1);
transition-delay:calc(var(--i,0) * 70ms);
}
}
@media (prefers-reduced-motion: reduce){
html{scroll-behavior:auto}
.doc.anim > section{opacity:1}
.brand:hover,.rail-list a:hover,.btn:hover,.rail-call:hover{transform:none}
}
@media (max-width:1100px){
.side{top:18px}
}
@media (max-width:900px){
.rail{
position:sticky;
top:0;
left:auto;
right:auto;
bottom:auto;
width:auto;
height:auto;
flex-direction:row;
align-items:center;
gap:8px;
padding:8px 12px;
border-right:0;
border-bottom:1px solid var(--stroke);
overflow:visible;
}
.brand{width:42px;height:42px;border-radius:14px}
.rail-list{flex-direction:row;flex:1;gap:2px;overflow-x:auto;scrollbar-width:none}
.rail-list::-webkit-scrollbar{display:none}
.rail-list a{white-space:nowrap;padding:10px}
.rail-list .ico{display:none}
.rail-call{margin-top:0;flex:none;min-height:44px;padding:0 12px;font-size:.88rem}
.page{margin-left:0;padding:14px 13px 0}
.shell{grid-template-columns:minmax(0,1fr)}
.doc{max-width:100%}
.hero{grid-template-columns:1fr;min-height:0;padding:20px;gap:16px}
.hero-copy{order:-1}
.hero-art{min-height:150px;clip-path:polygon(0 0,100% 0,100% 86%,0 100%)}
.hero-copy h1{font-size:clamp(1.75rem,7.6vw,2.4rem)}
.side{position:static;order:2;top:auto}
section[id]{scroll-margin-top:86px}
.foot{padding:26px 14px 18px}
}
@media (max-width:560px){
.doc > section:not(.hero){padding:22px 18px}
.hero-cta{flex-direction:column;align-items:stretch}
.btn{width:100%}
}

button[aria-expanded]{min-width:44px;min-height:44px}