/* roulang page: index */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --r-card:6px;
  --r-btn:4px;
  --pad-x:20px;
  --sec-y:56px;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(38px,5.6vw,80px);line-height:1.02;font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(26px,3.4vw,44px);line-height:1.1}
h3{font-size:clamp(20px,2vw,24px);line-height:1.3;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;background:none}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:separate;border-spacing:0}
:focus-visible{outline:2px solid var(--aqua);outline-offset:3px}
::selection{background:rgba(184,255,60,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad-x)}
.grid-x.gap{margin-left:-14px;margin-right:-14px}
.grid-x.gap>.cell{padding-left:14px;padding-right:14px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:var(--neon);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon);box-shadow:0 0 10px rgba(184,255,60,.6)}
.section{padding:var(--sec-y) 0;position:relative}
.section--alt{background:var(--ink-200);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.sec-head .sec-title{margin:0}
.sec-desc{color:var(--t2);font-size:15px;line-height:1.8;max-width:640px;margin-top:14px}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--neon);font-size:15px;font-weight:600}
.text-link span.arrow{transition:transform .25s}
.text-link:hover span.arrow{transform:translateX(4px)}
.text-link::after{content:"";display:block;height:1px;background:var(--neon)}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,9,10,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(6,7,6,.96);border-bottom-color:var(--line-strong)}
.nav-inner{position:relative}
.nav-inner::after{
  content:"";position:absolute;left:0;bottom:-1px;width:180px;height:1px;
  background:linear-gradient(90deg,var(--neon),rgba(184,255,60,0));
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:58px}
@media(min-width:1024px){.nav-bar{height:68px}}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:17px;font-weight:800;color:var(--t1);letter-spacing:-.01em;white-space:nowrap}
.logo .dot{width:9px;height:9px;background:var(--neon);border-radius:1px;transform:rotate(45deg);box-shadow:0 0 12px rgba(184,255,60,.75);flex:0 0 auto}
.logo .brand-sub{color:var(--t2);font-weight:600;font-size:15px}
.nav-links{display:none}
@media(min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
  .nav-links a{position:relative;display:inline-block;font-size:15px;color:var(--t2);padding:6px 2px;transition:color .22s}
  .nav-links a::after{
    content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
    background:var(--neon);box-shadow:0 0 10px rgba(184,255,60,.6);
    transition:right .28s cubic-bezier(.2,.7,.2,1);
  }
  .nav-links a:hover{color:var(--neon)}
  .nav-links a:hover::after{right:0}
  .nav-links a.is-active{color:var(--neon);text-shadow:0 0 12px rgba(184,255,60,.5)}
  .nav-links a.is-active::after{right:0}
}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--neon);color:#08090A}
.btn-primary:hover{background:var(--flame);color:#fff;transform:translateY(-2px);box-shadow:0 0 22px rgba(255,90,31,.35)}
.btn-ghost{background:transparent;color:var(--t1);border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--neon);box-shadow:0 0 22px rgba(184,255,60,.16);transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border-radius:var(--r-btn);
  border:1px solid var(--line);
}
.nav-toggle span{display:block;height:2px;background:var(--t1);border-radius:2px;transition:.25s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{
  position:fixed;inset:0;z-index:65;background:rgba(6,7,6,.98);
  padding:78px 20px 112px;overflow-y:auto;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.mobile-panel.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.mobile-panel a.m-link{
  display:flex;align-items:center;height:56px;padding-left:16px;
  font-size:17px;color:var(--t1);border-bottom:1px solid var(--line);
  border-left:3px solid transparent;
}
.mobile-panel a.m-link.is-active{color:var(--neon);border-left-color:var(--neon);background:rgba(184,255,60,.05)}
.mobile-fixed-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:66;padding:14px 20px 20px;
  background:linear-gradient(180deg,rgba(6,7,6,0),rgba(6,7,6,.98) 40%);
  transform:translateY(110%);transition:transform .3s ease;
}
.mobile-fixed-cta.is-open{transform:translateY(0)}
@media(min-width:1024px){.mobile-panel,.mobile-fixed-cta{display:none}}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:52px 0 60px;background:var(--ink-100)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 6% -12%,rgba(184,255,60,.16),transparent 62%),
    radial-gradient(560px 320px at 94% 4%,rgba(47,227,200,.10),transparent 60%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.033) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.033) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(72% 62% at 50% 32%,#000,transparent);
  mask-image:radial-gradient(72% 62% at 50% 32%,#000,transparent);
}
.hero .container{position:relative;z-index:2}
.hero-title{margin-bottom:20px}
.hero-title em{font-style:normal;color:var(--neon)}
.hero-sub{font-size:clamp(17px,1.5vw,21px);line-height:1.7;color:var(--t2);max-width:600px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;border-top:1px solid var(--line);padding-top:22px;max-width:600px}
.hero-stats .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(24px,2.6vw,34px);font-weight:700;color:var(--neon);line-height:1.1}
.hero-stats .lbl{font-size:13px;color:var(--t3);margin-top:4px}
.hero-note{font-size:13px;color:var(--t3);margin-top:16px}
.hero-visual{position:relative;margin-top:40px}
@media(min-width:1024px){.hero-visual{margin-top:0}}
.hero-frame{
  position:relative;border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%);
  box-shadow:0 0 28px rgba(184,255,60,.14);
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,7,6,.15),rgba(6,7,6,.78))}
.hero-frame .caption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--t2);
}
.hero-frame .caption strong{color:var(--t1);font-weight:600}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:12px;letter-spacing:.02em;white-space:nowrap;
}
.tag--flame{border-color:rgba(255,90,31,.55);color:var(--flame)}
.tag--neon{border-color:var(--line-strong);color:var(--neon)}

/* ===== 项目矩阵 ===== */
.program-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
@media(min-width:640px){.program-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.program-item{background:var(--ink-200);padding:22px 18px;transition:background .25s ease}
.program-item:hover{background:var(--ink-300)}
.program-item .idx{font-family:var(--font-mono);font-size:12px;color:var(--t3);letter-spacing:.08em}
.program-item h3{font-size:18px;margin:10px 0 6px}
.program-item p{font-size:13px;color:var(--t3);line-height:1.7;margin:0}

/* ===== 时间线 ===== */
.timeline{position:relative;padding-left:24px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:4px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--neon),rgba(184,255,60,.05));
}
.day-head{
  display:inline-flex;align-items:center;gap:10px;margin:26px 0 18px;
  font-size:13px;letter-spacing:.16em;color:var(--neon);text-transform:uppercase;
}
.day-head::after{content:"";width:40px;height:1px;background:var(--line-strong)}
.tl-item{position:relative;padding:0 0 28px}
.tl-item::before{
  content:"";position:absolute;left:-24px;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--neon);box-shadow:0 0 0 4px rgba(184,255,60,.12),0 0 12px rgba(184,255,60,.55);
  animation:tlPulse 1.8s ease-out infinite;
}
@keyframes tlPulse{
  0%{box-shadow:0 0 0 4px rgba(184,255,60,.14),0 0 12px rgba(184,255,60,.5)}
  70%{box-shadow:0 0 0 10px rgba(184,255,60,0),0 0 12px rgba(184,255,60,.35)}
  100%{box-shadow:0 0 0 4px rgba(184,255,60,.14),0 0 12px rgba(184,255,60,.5)}
}
.tl-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--neon);letter-spacing:.04em}
.tl-item h3{font-size:19px;margin:6px 0 6px}
.tl-item p{font-size:14px;color:var(--t2);margin-bottom:10px}
.tl-meta{display:flex;gap:8px;flex-wrap:wrap}
@media(min-width:1024px){
  .timeline{padding-left:0}
  .timeline::before{left:calc(25% - 1px)}
  .tl-item{padding-left:calc(25% + 30px);padding-bottom:32px}
  .tl-item::before{left:calc(25% - 5px);top:10px}
  .day-head{margin-left:calc(25% + 30px)}
}

/* ===== 编号亮点 ===== */
.hl-list{border-top:1px solid var(--line);margin-top:8px}
.hl-item{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.hl-item .hl-num{font-family:var(--font-mono);font-size:clamp(24px,2.6vw,34px);font-weight:700;color:var(--neon);line-height:1;min-width:66px;letter-spacing:-.02em}
.hl-item h3{font-size:19px;margin-bottom:8px}
.hl-item p{font-size:14px;color:var(--t2);margin:0}
.side-visual{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--ink-300);
}
.side-visual img{width:100%;aspect-ratio:3/4;object-fit:cover}
.side-visual .sv-body{padding:18px;font-size:13px;color:var(--t3)}
.side-visual .sv-body strong{display:block;color:var(--t1);font-size:15px;margin-bottom:6px}

/* ===== 名单行 ===== */
.roster-row{
  display:flex;gap:18px;align-items:center;padding:20px 0 20px 14px;
  border-bottom:1px solid var(--line);position:relative;transition:background .25s ease;
}
.roster-row::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--neon);opacity:0;transition:opacity .25s}
.roster-row:hover::before{opacity:1}
.roster-row:hover{background:rgba(255,255,255,.02)}
.roster-row img{width:72px;height:72px;border-radius:50%;object-fit:cover;flex:0 0 auto;border:1px solid var(--line-strong)}
.roster-row .r-name{font-size:17px;color:var(--t1);font-weight:600}
.roster-row .r-role{font-size:13px;color:var(--neon);margin-bottom:4px;font-family:var(--font-mono)}
.roster-row p{font-size:13px;color:var(--t3);margin:6px 0 0}

/* ===== 对比表 ===== */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:var(--ink-200)}
.tier-table{width:100%;min-width:720px;font-size:15px}
.tier-table th,.tier-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tier-table thead th{background:var(--ink-300);border-bottom:1px solid var(--line)}
.tier-table tbody tr:last-child th,.tier-table tbody tr:last-child td{border-bottom:0}
.tier-table th[scope="row"]{color:var(--t2);font-weight:500;font-size:14px;white-space:nowrap}
.tier-name{font-size:16px;color:var(--t1);font-weight:700;margin-bottom:6px}
.tier-price{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:22px;color:var(--neon);font-weight:700}
.tier-price small{display:block;font-size:12px;color:var(--t3);font-weight:400;font-family:inherit;margin-top:2px}
.tier-sum{font-size:13px;color:var(--t3);margin-top:8px}
.col-rec{position:relative;border-left:1px solid var(--line-strong);border-right:1px solid var(--line-strong);background:rgba(184,255,60,.035)}
.badge-rec{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:rgba(255,90,31,.14);border:1px solid rgba(255,90,31,.6);color:var(--flame);
  font-size:11px;letter-spacing:.08em;margin-bottom:10px;
}
.tick{color:var(--neon);font-weight:700}
.dash{color:var(--t3)}

/* ===== 表单 ===== */
.cta-band{
  background:var(--ink-000);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--neon),transparent);
  opacity:.85;
}
.form-card{
  background:var(--ink-200);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 20px;
}
.form-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12px;color:var(--t3);letter-spacing:.06em}
.field input,.field select{
  height:46px;padding:0 2px;background:transparent;color:var(--t1);
  border:0;border-bottom:1px solid var(--line);border-radius:0;
  font-size:15px;transition:border-color .25s ease,box-shadow .25s ease;
  appearance:none;-webkit-appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--t2) 50%),linear-gradient(135deg,var(--t2) 50%,transparent 50%);
  background-position:calc(100% - 12px) 20px,calc(100% - 6px) 20px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field select option{background:var(--ink-300);color:var(--t1)}
.field input::placeholder{color:var(--t3)}
.field input:focus,.field select:focus{outline:none;border-bottom-color:var(--neon);box-shadow:0 6px 18px -12px rgba(184,255,60,.8)}
.form-full{grid-column:1/-1}
.form-hint{font-size:13px;color:var(--t3);margin-top:12px}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);color:var(--neon);font-size:14px;background:rgba(184,255,60,.06);
}
.form-ok.is-visible{display:block}

/* ===== 资讯列表 ===== */
.post-lead{
  display:block;background:var(--ink-200);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.post-lead:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 0 22px rgba(184,255,60,.16)}
.post-lead .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-300)}
.post-lead .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-lead:hover .thumb img{transform:scale(1.03)}
.post-lead .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,7,6,.05),rgba(6,7,6,.72))}
.post-lead .pl-body{padding:22px}
.post-lead h3{font-size:20px;margin:10px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-lead .ex{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--t3);font-family:var(--font-mono);letter-spacing:.03em}
.post-row{
  display:flex;gap:16px;align-items:flex-start;padding:18px 0 18px 14px;
  border-bottom:1px solid var(--line);position:relative;transition:background .25s ease;
}
.post-row:hover{background:rgba(255,255,255,.02)}
.post-row::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--neon);opacity:0;transition:opacity .25s ease}
.post-row:hover::before{opacity:1}
.post-row .pr-main{flex:1 1 auto;min-width:0}
.post-row h3{font-size:17px;margin:8px 0 6px}
.post-row .ex{font-size:13px;color:var(--t3);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .arrow{color:var(--neon);font-family:var(--font-mono);flex:0 0 auto;padding-top:6px}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--ink-200);
  padding:28px 22px;max-height:220px;display:flex;flex-direction:column;gap:8px;align-items:flex-start;
}
.empty-state strong{color:var(--t1);font-size:16px}
.empty-state span{font-size:14px;color:var(--t3)}

/* ===== 信任条 ===== */
.trust-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
@media(min-width:640px){.trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.trust-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.trust-item{background:var(--ink-100);padding:24px 20px}
.trust-item .ti-mark{
  width:26px;height:26px;border-radius:2px;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--neon);
  font-family:var(--font-mono);font-size:12px;margin-bottom:14px;
}
.trust-item h3{font-size:16px;margin-bottom:8px}
.trust-item p{font-size:13px;color:var(--t3);margin:0}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--neon);
  transform:scaleY(0);transform-origin:top;transition:transform .28s ease;
}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--neon)}
.faq-sign{
  font-family:var(--font-mono);font-size:20px;color:var(--neon);flex:0 0 auto;
  transition:transform .28s ease;line-height:1;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{font-size:15px;line-height:1.9;color:var(--t2);padding:0 0 20px;max-width:760px}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-000);border-top:1px solid var(--line-strong);padding:56px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t3);max-width:340px}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--t2);margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--t3);transition:color .22s ease}
.footer-col a:hover{color:var(--neon)}
.footer-contact{font-size:14px;color:var(--t3);line-height:1.9}
.footer-contact strong{color:var(--t1);font-weight:600}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.footer-bottom .mono{letter-spacing:.04em}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
@media(min-width:640px){:root{--pad-x:32px}}
@media(min-width:1024px){:root{--pad-x:40px;--sec-y:96px}}
@media(min-width:1200px){:root{--pad-x:60px;--sec-y:112px}.container{max-width:1320px}}
@media(max-width:1023px){
  .hero-frame{box-shadow:0 0 14px rgba(184,255,60,.10)}
  .btn-primary:hover{box-shadow:none}
}

/* roulang page: article */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --r-card:6px;
  --r-btn:4px;
  --r-badge:999px;
  --glow:0 0 22px rgba(184,255,60,.16);
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --gutter:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--aqua);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--neon);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;line-height:1.16;letter-spacing:-.02em;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:20px;}
::selection{background:rgba(184,255,60,.28);color:#fff;}
:focus-visible{outline:2px solid var(--aqua);outline-offset:2px;border-radius:2px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 40px;}}
@media (min-width:1400px){.container{max-width:1320px;padding:0 60px;}}

/* ===== 顶栏 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,9,10,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--neon),rgba(184,255,60,0) 180px);
  opacity:0;transition:opacity .25s ease;
}
.site-header.is-scrolled{background:rgba(6,7,6,.96);box-shadow:0 10px 30px rgba(0,0,0,.45);}
.site-header.is-scrolled::after{opacity:1;}
.header-inner{display:flex;align-items:center;gap:24px;height:58px;}
@media (min-width:1024px){.header-inner{height:68px;gap:36px;}}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--t1);font-weight:800;font-size:19px;letter-spacing:-.02em;
  white-space:nowrap;
}
.logo:hover{color:var(--t1);}
.logo .dot{
  width:9px;height:9px;border-radius:2px;background:var(--neon);
  box-shadow:0 0 12px rgba(184,255,60,.75);flex:none;
}
.logo .brand-sub{color:var(--neon);font-weight:600;font-size:14px;letter-spacing:.08em;}
.nav-links{
  display:none;list-style:none;margin:0;padding:0;gap:28px;align-items:center;
}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links li{margin:0;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  color:var(--t2);font-size:15px;font-weight:500;letter-spacing:.02em;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--neon);transition:width .28s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover{color:var(--neon);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--neon);text-shadow:0 0 12px rgba(184,255,60,.5);}
.nav-links a.is-active::after{width:100%;box-shadow:0 0 10px rgba(184,255,60,.6);}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--neon);color:#08090A;}
.btn-primary:hover{background:var(--flame);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,90,31,.25);}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line);}
.btn-ghost:hover{color:var(--neon);border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-2px);}
.btn-text{height:auto;padding:0;color:var(--aqua);background:none;border:0;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover{color:var(--neon);}
.btn-text:hover i{transform:translateX(4px);}
.header-cta .btn-primary{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;padding:0 11px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:transparent;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--t1);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* ===== 移动抽屉 ===== */
.mobile-drawer{
  position:fixed;inset:58px 0 0 0;z-index:70;
  background:rgba(6,7,6,.98);
  padding:20px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer ul{list-style:none;margin:0 0 24px;padding:0;}
.mobile-drawer li{border-bottom:1px solid var(--line);}
.mobile-drawer li a{
  display:block;padding:0 12px;height:56px;line-height:56px;
  color:var(--t1);font-size:16px;font-weight:500;border-left:3px solid transparent;
}
.mobile-drawer li a.is-active{color:var(--neon);border-left-color:var(--neon);}
.mobile-drawer .drawer-cta{width:100%;height:48px;}

/* ===== 阅读进度 ===== */
.progress-track{position:sticky;top:58px;z-index:60;height:2px;background:rgba(255,255,255,.06);}
@media (min-width:1024px){.progress-track{top:68px;}}
.progress-track span{display:block;height:100%;width:0;background:var(--neon);box-shadow:0 0 12px rgba(184,255,60,.7);}

/* ===== 文章头部 ===== */
.article-head{
  position:relative;
  padding:44px 0 32px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(760px 300px at 8% -10%,rgba(184,255,60,.10),transparent 70%),
    linear-gradient(180deg,rgba(14,17,16,.9),rgba(8,9,10,0));
  overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 78%);
}
.article-head .container{position:relative;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:22px;
}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--neon);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--t3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:20px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-badge);
  border:1px solid var(--line);background:transparent;
  font-size:12px;letter-spacing:.14em;color:var(--t2);
}
.badge-neon{border-color:var(--line-strong);color:var(--neon);}
.badge-flame{border-color:rgba(255,90,31,.45);color:var(--flame);}
.article-head h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.1;letter-spacing:-.03em;font-weight:800;
  max-width:24ch;margin-bottom:20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;
  padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.article-meta .mono{color:var(--t2);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--neon);font-size:12px;}

/* ===== 正文 ===== */
.article-body{padding:56px 0 24px;}
@media (min-width:1024px){.article-body{padding:80px 0 32px;}}
.article-grid{display:grid;grid-template-columns:1fr;gap:44px;}
@media (min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
}
.prose{max-width:760px;font-size:17px;line-height:1.9;color:var(--t2);}
.prose>*:first-child{margin-top:0;}
.prose p{margin:0 0 1.25em;}
.prose h2{
  position:relative;margin:44px 0 18px;padding-left:14px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--t1);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 14px rgba(184,255,60,.45);
}
.prose h3{margin:32px 0 12px;font-size:20px;font-weight:600;color:var(--t1);}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1.25em;}
.prose li{margin-bottom:8px;}
.prose ul li::marker{color:var(--neon);}
.prose ol li::marker{color:var(--neon);font-family:var(--font-mono);}
.prose blockquote{
  margin:26px 0;padding:18px 24px;
  border-left:3px solid var(--neon);border-radius:0 var(--r-card) var(--r-card) 0;
  background:var(--ink-200);color:var(--t2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-card);margin:26px 0 10px;border:1px solid var(--line);}
.prose figure{margin:26px 0;}
.prose figcaption{font-size:12px;color:var(--t3);text-align:center;margin-top:8px;}
.prose a{color:var(--aqua);border-bottom:1px solid rgba(47,227,200,.35);}
.prose a:hover{color:var(--neon);border-bottom-color:var(--neon);}
.prose code{
  font-family:var(--font-mono);font-size:.92em;
  background:var(--ink-300);border:1px solid var(--line);
  padding:2px 6px;border-radius:3px;color:var(--neon);
}
.prose pre{
  background:var(--ink-300);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.prose pre code{background:none;border:0;padding:0;color:var(--t1);}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose th{color:var(--t1);font-weight:600;background:var(--ink-200);}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.prose strong{color:var(--t1);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--ink-200);
  padding:36px 28px;text-align:center;max-width:520px;
}
.empty-state i{font-size:26px;color:var(--t3);margin-bottom:12px;display:block;}
.empty-state p{color:var(--t2);margin-bottom:18px;}

/* ===== 侧栏 ===== */
.side-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--ink-200);padding:22px;margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;letter-spacing:-.01em;}
.side-card ul{list-style:none;margin:0;padding:0;}
.side-card li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;}
.side-card li:last-child{border-bottom:0;padding-bottom:0;}
.side-card li a{color:var(--t2);display:flex;align-items:center;justify-content:space-between;gap:10px;}
.side-card li a:hover{color:var(--neon);}
.side-card li a i{font-size:11px;color:var(--t3);}
.side-card li a:hover i{color:var(--neon);}
.side-note{font-size:13px;color:var(--t3);line-height:1.75;margin-bottom:16px;}
.side-card .btn{width:100%;margin-top:6px;}
@media (min-width:1024px){
  .article-aside{position:sticky;top:110px;align-self:start;}
}

/* ===== 相关推荐 ===== */
.related{border-top:1px solid var(--line);padding:56px 0 24px;}
@media (min-width:1024px){.related{padding:72px 0 32px;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head p{font-size:14px;color:var(--t3);margin:6px 0 0;}
.row-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);}
.row-item{
  display:flex;align-items:center;gap:18px;
  padding:18px 4px;border-bottom:1px solid var(--line);
  position:relative;transition:background-color .2s ease;
}
.row-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--neon);opacity:0;transition:opacity .2s ease;
}
.row-item:hover{background:rgba(255,255,255,.02);}
.row-item:hover::before{opacity:1;}
.row-item .row-date{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--t3);flex:none;width:96px;
}
.row-item .row-thumb{
  width:96px;aspect-ratio:16/9;flex:none;border-radius:4px;overflow:hidden;
  border:1px solid var(--line);background:var(--ink-300);
}
.row-item .row-thumb img{width:100%;height:100%;object-fit:cover;}
.row-item .row-main{min-width:0;flex:1;}
.row-item .row-main a{
  display:block;color:var(--t1);font-size:16px;font-weight:600;line-height:1.45;
  margin-bottom:4px;
}
.row-item .row-main a:hover{color:var(--neon);}
.row-item .row-main p{font-size:13px;color:var(--t3);margin:0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.row-item .row-arrow{color:var(--t3);flex:none;}
.row-item:hover .row-arrow{color:var(--neon);}
@media (max-width:767px){
  .row-item{flex-wrap:wrap;gap:12px;}
  .row-item .row-date{width:auto;}
  .row-item .row-thumb{width:72px;}
}

/* ===== CTA 条 ===== */
.cta-band{
  position:relative;margin:56px 0 0;
  border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line);
  background:
    radial-gradient(600px 220px at 80% 0%,rgba(255,90,31,.12),transparent 70%),
    var(--ink-000);
  padding:48px 0;
}
.cta-band .cta-inner{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
@media (min-width:1024px){.cta-band .cta-inner{grid-template-columns:minmax(0,1fr) auto;gap:40px;}}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;color:var(--t2);}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink-000);border-top:1px solid var(--line-strong);
  padding:56px 0 0;margin-top:0;color:var(--t2);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand p{font-size:14px;color:var(--t3);line-height:1.8;margin-top:16px;max-width:38ch;}
.footer-col h4{font-size:14px;color:var(--t1);letter-spacing:.1em;margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--t3);font-size:14px;}
.footer-col a:hover{color:var(--neon);}
.footer-contact p{font-size:14px;color:var(--t3);margin:0 0 10px;}
.footer-contact strong{color:var(--t2);font-weight:500;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:18px 0 24px;font-size:13px;color:var(--t3);
}
.footer-bottom .mono{color:var(--t3);letter-spacing:.06em;}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --r-card:6px;
  --r-btn:4px;
  --r-input:4px;
  --r-badge:999px;
  --glow:0 0 22px rgba(184,255,60,.16);
  --glow-soft:0 0 12px rgba(184,255,60,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:40px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--aqua);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--neon);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--t1);font-family:var(--font-sans);line-height:1.15;font-weight:700;}
h1{font-size:clamp(32px,4.6vw,58px);line-height:1.06;letter-spacing:-.03em;font-weight:800;}
h2{font-size:clamp(24px,3.1vw,40px);line-height:1.12;letter-spacing:-.02em;}
h3{font-size:clamp(19px,1.5vw,23px);line-height:1.32;font-weight:600;letter-spacing:-.01em;}
strong{color:var(--t1);font-weight:600;}
:focus-visible{outline:2px solid var(--aqua);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media screen and (min-width:640px){.container{padding-left:32px;padding-right:32px;}}
@media screen and (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}
@media screen and (min-width:1200px){.container{padding-left:60px;padding-right:60px;max-width:1320px;}}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--neon);
  text-transform:uppercase;font-weight:600;margin-bottom:18px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--neon);box-shadow:0 0 8px rgba(184,255,60,.6);}
.section{padding:64px 0;}
@media screen and (min-width:1024px){.section{padding:104px 0;}}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{margin-top:14px;color:var(--t2);font-size:16px;}
.section-alt{background:var(--ink-200);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--neon);color:#08090A;}
.btn-primary:hover{background:var(--flame);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1);}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);box-shadow:var(--glow);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--neon);font-weight:600;font-size:15px;}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover{color:var(--neon);}
.link-arrow:hover::after{transform:translateX(4px);}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-badge);
  border:1px solid var(--line);color:var(--t2);
  font-size:12px;line-height:1.6;letter-spacing:.04em;white-space:nowrap;
}
.badge-flame{border-color:rgba(255,90,31,.5);color:var(--flame);}
.badge-neon{border-color:var(--line-strong);color:var(--neon);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,9,10,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease,border-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(184,255,60,.9) 0,rgba(184,255,60,.9) 180px,rgba(184,255,60,0) 60%);
  opacity:.45;transition:opacity .25s ease;
}
.site-header.is-scrolled{background:rgba(6,7,6,.95);}
.site-header.is-scrolled::after{opacity:1;}
.header-inner{display:flex;align-items:center;gap:24px;height:58px;}
@media screen and (min-width:1024px){.header-inner{height:68px;gap:36px;}}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--t1);font-size:18px;font-weight:700;letter-spacing:-.01em;
  flex:0 0 auto;
}
.logo:hover{color:var(--t1);}
.logo .dot{width:8px;height:8px;border-radius:1px;background:var(--neon);box-shadow:0 0 12px rgba(184,255,60,.85);}
.logo .brand-sub{color:var(--t3);font-weight:500;font-size:15px;margin-left:2px;}
.nav-links{display:none;align-items:center;gap:28px;margin:0;}
@media screen and (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;display:inline-block;
  padding:6px 0;color:var(--t2);font-size:15px;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--aqua));
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover{color:var(--t1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--neon);text-shadow:0 0 12px rgba(184,255,60,.5);}
.nav-links a.is-active::after{transform:scaleX(1);height:2px;background:var(--neon);box-shadow:0 0 10px rgba(184,255,60,.6);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.header-actions .btn-primary{display:none;}
@media screen and (min-width:640px){.header-actions .btn-primary{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);cursor:pointer;
}
@media screen and (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle span{display:block;height:2px;background:var(--t1);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:58px;bottom:0;z-index:79;
  background:rgba(6,7,6,.98);padding:20px;overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel ul{display:block;}
.mobile-panel li + li{border-top:1px solid var(--line);}
.mobile-panel a{
  display:block;padding:0 0 0 16px;height:56px;line-height:56px;
  color:var(--t2);font-size:16px;position:relative;
}
.mobile-panel a.is-active{color:var(--neon);}
.mobile-panel a.is-active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--neon);border-radius:2px;}
.mobile-panel .mobile-cta{margin-top:24px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  border-bottom:1px solid var(--line);
  background-color:var(--ink-100);
  background-image:
    radial-gradient(900px 520px at 10% -18%,rgba(184,255,60,.10),transparent 62%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 24px);
}
@media screen and (min-width:1024px){.hero{padding:88px 0 104px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
@media screen and (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;}}
.hero h1{margin-bottom:20px;}
.hero h1 .accent{color:var(--neon);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--t2);max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 0;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px 40px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.stat{min-width:96px;}
.stat-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(24px,2.4vw,32px);font-weight:700;color:var(--neon);line-height:1.1;}
.stat-label{font-size:13px;color:var(--t3);margin-top:6px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  border:1px solid var(--line-strong);
  filter:saturate(.9) contrast(1.03);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);pointer-events:none;
  background:linear-gradient(180deg,rgba(6,7,6,.05) 0%,rgba(6,7,6,.62) 100%);
}
.hero-media .media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;gap:8px;flex-wrap:wrap;
}

/* 编号列表 */
.num-list{border-top:1px solid var(--line);}
.num-item{
  display:grid;grid-template-columns:56px 1fr;gap:16px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,border-color .2s ease;
}
@media screen and (min-width:768px){.num-item{grid-template-columns:88px 1fr;gap:28px;padding:32px 0;}}
.num-item:hover{border-bottom-color:var(--line-strong);}
.num-item .num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--neon);opacity:.75;line-height:1.1;
}
@media screen and (min-width:768px){.num-item .num{font-size:38px;}}
.num-item h3{margin-bottom:8px;}
.num-item p{color:var(--t2);font-size:15.5px;max-width:660px;}

/* 图文交错 */
.feature{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:36px 0;border-bottom:1px solid var(--line);}
@media screen and (min-width:900px){
  .feature{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;padding:52px 0;}
  .feature.reverse .feature-media{order:2;}
}
.feature:last-child{border-bottom:0;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.feature:hover .feature-media img{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-2px);}
.feature-body h3{margin-bottom:12px;}
.feature-body p{font-size:15.5px;color:var(--t2);margin-bottom:18px;}
.ticks li{position:relative;padding-left:22px;font-size:15px;color:var(--t2);line-height:1.9;}
.ticks li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  border-left:2px solid var(--neon);border-bottom:2px solid var(--neon);
  transform:rotate(-45deg);
}

/* 卡片 */
.card{
  background:var(--ink-300);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.card:hover{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-2px);}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.card:hover img{transform:scale(1.03);}
.card-body{padding:20px 22px 24px;}
.card-body h3{font-size:18px;margin-bottom:8px;}
.card-body p{font-size:14.5px;color:var(--t3);}
.card-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;}

/* 流程时间线 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--neon),rgba(184,255,60,0));
}
@media screen and (min-width:768px){.timeline::before{left:7px;}}
.tl-item{position:relative;padding:0 0 30px 32px;}
@media screen and (min-width:768px){.tl-item{padding-left:44px;}}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--ink-100);border:2px solid var(--neon);
  box-shadow:0 0 0 0 rgba(184,255,60,.45);animation:pulse 1.8s ease-out infinite;
}
@media screen and (min-width:768px){.tl-item::before{left:2px;}}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(184,255,60,.45);}
  70%{box-shadow:0 0 0 12px rgba(184,255,60,0);}
  100%{box-shadow:0 0 0 0 rgba(184,255,60,0);}
}
.tl-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--neon);letter-spacing:.04em;}
.tl-item h3{font-size:18px;margin:6px 0 8px;}
.tl-item p{font-size:15px;color:var(--t2);max-width:680px;}

/* 时段列表行 */
.slot-list{border-top:1px solid var(--line);}
.slot-row{
  display:grid;grid-template-columns:1fr;gap:8px;
  padding:20px 0;border-bottom:1px solid var(--line);
  position:relative;transition:background-color .2s ease;
}
@media screen and (min-width:768px){
  .slot-row{grid-template-columns:170px minmax(0,1fr) auto;gap:24px;align-items:center;}
}
.slot-row::before{
  content:"";position:absolute;left:-14px;top:14px;bottom:14px;width:2px;
  background:var(--neon);opacity:0;transition:opacity .2s ease;
}
.slot-row:hover::before{opacity:1;}
.slot-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--neon);}
.slot-main h3{font-size:17px;margin-bottom:4px;}
.slot-main p{font-size:14.5px;color:var(--t3);}
.slot-tags{display:flex;gap:8px;flex-wrap:wrap;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--neon);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0 22px 16px;color:var(--t1);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--neon);}
.faq-icon{position:relative;flex:0 0 auto;width:14px;height:14px;margin-top:8px;transition:transform .25s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--neon);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:6px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:6px;width:2px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 16px 24px;}
.faq-a p{font-size:15px;line-height:1.9;color:var(--t2);max-width:760px;}

/* CTA + 表单 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-200);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
@media screen and (min-width:1024px){.cta-band{padding:88px 0;}}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--neon),transparent);
  box-shadow:0 0 18px rgba(184,255,60,.55);
}
.cta-grid{display:grid;grid-template-columns:1fr;gap:40px;}
@media screen and (min-width:1024px){.cta-grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px;}}
.cta-copy h2{margin-bottom:16px;}
.cta-copy p{font-size:16px;color:var(--t2);max-width:460px;}
.form-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media screen and (min-width:768px){.form-grid{grid-template-columns:1fr 1fr;}.form-grid .span-2{grid-column:1 / -1;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:12px;letter-spacing:.08em;color:var(--t3);}
.field input,.field select{
  width:100%;height:44px;padding:0 4px;
  background:transparent;border:0;border-bottom:1px solid var(--line);
  border-radius:0;color:var(--t1);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#4E5551;}
.field input:focus,.field select:focus{
  outline:none;border-bottom-color:var(--neon);box-shadow:0 6px 14px -12px rgba(184,255,60,.9);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t3) 50%),linear-gradient(135deg,var(--t3) 50%,transparent 50%);background-position:calc(100% - 12px) 20px,calc(100% - 7px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field select option{background:#0E1110;color:var(--t1);}
.form-note{font-size:13px;color:var(--t3);line-height:1.7;}
.form-success{
  display:none;margin-top:8px;padding:14px 18px;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  color:var(--neon);font-size:14.5px;background:rgba(184,255,60,.06);
}
.form-success.is-show{display:block;}

/* 页脚 */
.site-footer{
  background:var(--ink-000);
  border-top:1px solid rgba(184,255,60,.28);
  padding:56px 0 24px;
  font-size:14.5px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media screen and (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand .logo{font-size:19px;margin-bottom:16px;}
.footer-brand p{color:var(--t3);font-size:14px;line-height:1.85;max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--t1);margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--t3);font-size:14px;}
.footer-col ul a:hover{color:var(--neon);}
.footer-contact p{color:var(--t3);font-size:14px;margin-bottom:8px;}
.footer-contact strong{color:var(--t2);font-weight:500;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--t3);font-size:13px;
}
.footer-bottom .mono{color:#565D59;letter-spacing:.04em;}

/* 动效 */
.fade-up{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1);}
.fade-up.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
@media screen and (max-width:639px){
  .hero-media img{aspect-ratio:16/10;}
  .stat-num{font-size:24px;}
  .card:hover,.feature:hover .feature-media img,.btn:hover{transform:none;}
  .card:hover{box-shadow:0 0 10px rgba(184,255,60,.08);}
}

/* roulang page: category3 */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --r-card:6px;
  --r-btn:4px;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,monospace;
  --shadow-hover:0 0 22px rgba(184,255,60,.16);
  --pad-x:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.01em}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--aqua);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad-x)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.eyebrow{
  font-size:12px;letter-spacing:.18em;color:var(--neon);
  text-transform:uppercase;font-family:var(--font-mono);margin-bottom:12px;
}
.section{padding:96px 0;border-bottom:1px solid var(--line)}
.section--alt{background:var(--ink-200)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3.4vw,44px);line-height:1.1;font-weight:700;margin-bottom:14px}
.section-head p{color:var(--t2);font-size:16px;max-width:640px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;max-width:none}
.section-head--split .section-head-text{max-width:680px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;color:var(--neon);
  font-size:14px;border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-more:hover{border-color:var(--neon)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,9,10,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(6,7,6,.95);box-shadow:0 1px 0 0 var(--line-strong),0 12px 40px rgba(0,0,0,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo .dot{width:10px;height:10px;border-radius:2px;background:var(--neon);box-shadow:0 0 12px rgba(184,255,60,.7);flex:none}
.logo .brand-sub{
  font-size:12px;font-weight:500;color:var(--t3);border:1px solid var(--line);
  border-radius:999px;padding:2px 8px;letter-spacing:.06em;
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  display:block;position:relative;padding:8px 14px;font-size:15px;color:var(--t2);
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.7,.2,1);border-radius:2px;
}
.nav-links a:hover{color:var(--neon)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--neon);text-shadow:0 0 12px rgba(184,255,60,.5)}
.nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(184,255,60,.6)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn-primary{background:var(--neon);color:#08090A}
.btn-primary:hover{background:var(--flame);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--t1);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.header-actions .btn-primary{height:42px;padding:0 20px;font-size:14px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  display:none;background:var(--ink-000);border-top:1px solid var(--line);
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;height:56px;line-height:56px;padding-left:16px;color:var(--t2);
  border-left:3px solid transparent;border-bottom:1px solid var(--line);font-size:16px;
}
.mobile-panel a.is-active{color:var(--neon);border-left-color:var(--neon);background:rgba(184,255,60,.05)}
.mobile-panel .btn{width:100%;margin-top:16px}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:84px 0 72px;background:var(--ink-100);border-bottom:1px solid var(--line)}
.hero::after{
  content:"";position:absolute;width:640px;height:640px;left:-240px;top:-300px;
  background:radial-gradient(circle,rgba(184,255,60,.15),transparent 66%);pointer-events:none;
}
.hero .grid-bg{
  position:absolute;inset:0;pointer-events:none;opacity:.9;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 22% 6%,#000,transparent 68%);
  mask-image:radial-gradient(circle at 22% 6%,#000,transparent 68%);
}
.hero-inner{position:relative;z-index:2;max-width:880px}
.hero h1{
  font-size:clamp(34px,5.2vw,68px);line-height:1.04;font-weight:800;
  letter-spacing:-.03em;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--neon)}
.hero-sub{font-size:clamp(16px,1.5vw,19px);color:var(--t2);max-width:660px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;border-top:1px solid var(--line);padding-top:26px}
.hero-stat .num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3vw,36px);font-weight:700;color:var(--neon);line-height:1.1;
}
.hero-stat .lbl{font-size:13px;color:var(--t3);margin-top:6px}
.kv-figure{
  position:relative;margin-top:52px;border:1px solid var(--line-strong);border-radius:var(--r-card);
  overflow:hidden;background:var(--ink-300);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.kv-figure img{width:100%;aspect-ratio:21/8;object-fit:cover;opacity:.82}
.kv-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 22px;font-size:13px;color:var(--t2);
  background:linear-gradient(180deg,rgba(6,7,6,0),rgba(6,7,6,.9));
}

/* ============ filter ============ */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:32px}
.filter-bar .filter-label{font-size:13px;color:var(--t3);margin-right:6px}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);font-size:14px;color:var(--t2);background:transparent;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{border-color:var(--line-strong);color:var(--t1)}
.chip.is-active{border-color:var(--neon);color:var(--neon);box-shadow:0 0 14px rgba(184,255,60,.18)}

/* ============ coach roster ============ */
.coach-row{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
  position:relative;transition:transform .22s ease;
}
.coach-row::before{
  content:"";position:absolute;left:-14px;top:14px;bottom:14px;width:2px;
  background:var(--neon);opacity:0;transition:opacity .25s ease;
}
.coach-row:hover{transform:translateY(-2px)}
.coach-row:hover::before{opacity:1}
.coach-avatar{
  width:72px;height:72px;border-radius:50%;overflow:hidden;flex:none;
  border:1px solid var(--line);background:var(--ink-300);
}
.coach-avatar img{width:100%;height:100%;object-fit:cover}
.coach-body{min-width:0;flex:1}
.coach-name{font-size:19px;font-weight:700;color:var(--t1);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.coach-role{font-size:13px;color:var(--t3);font-family:var(--font-mono);margin-top:2px}
.coach-text{font-size:15px;color:var(--t2);margin-top:8px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tag{
  font-size:12px;color:var(--t2);border:1px solid var(--line);border-radius:999px;
  padding:2px 10px;line-height:1.6;
}
.tag--flame{color:var(--flame);border-color:rgba(255,90,31,.4)}
.tag--neon{color:var(--neon);border-color:var(--line-strong)}

/* ============ steps ============ */
.steps-list{counter-reset:step;border-top:1px solid var(--line)}
.step-item{
  display:flex;gap:26px;padding:28px 0;border-bottom:1px solid var(--line);align-items:flex-start;
}
.step-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;color:var(--neon);line-height:1;flex:none;width:64px;
}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:8px}
.step-body p{font-size:15px;color:var(--t2);max-width:720px}

/* ============ course rows ============ */
.course-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.course-row:hover .course-title{color:var(--neon)}
.course-time{font-family:var(--font-mono);font-size:13px;color:var(--t3);width:96px;flex:none}
.course-title{font-size:17px;font-weight:600;color:var(--t1);flex:1;min-width:200px;transition:color .2s ease}
.course-desc{font-size:14px;color:var(--t2);flex:2;min-width:240px}
.course-arrow{color:var(--neon);font-size:13px}

/* ============ quote ============ */
.quote-grid{gap:28px}
.quote-card{
  height:100%;background:var(--ink-300);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.quote-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.quote-card p{font-size:15px;color:var(--t2);border-left:3px solid var(--neon);padding-left:16px}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:18px}
.quote-meta .who{font-size:14px;color:var(--t1);font-weight:600}
.quote-meta .from{font-size:12px;color:var(--t3);font-family:var(--font-mono)}

/* ============ faq ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;text-align:left;padding:22px 0 22px 0;font-size:17px;font-weight:600;color:var(--t1);
  transition:color .2s ease,padding .25s ease;
}
.faq-q i{color:var(--neon);font-size:14px;transition:transform .3s ease}
.faq-q:hover{color:var(--neon)}
.faq-item.is-open .faq-q{padding-left:16px;color:var(--neon)}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--neon);border-radius:2px;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.2,.7,.2,1)}
.faq-a p{padding:0 0 24px 16px;font-size:15px;color:var(--t2);max-width:820px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-200);
  border:1px solid var(--line);border-radius:var(--r-card);padding:44px;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--neon),rgba(184,255,60,0) 72%);
}
.cta-copy h2{font-size:clamp(24px,3vw,36px);line-height:1.14;font-weight:700;margin-bottom:14px}
.cta-copy p{font-size:15px;color:var(--t2);margin-bottom:20px}
.cta-points li{
  font-size:14px;color:var(--t2);padding:10px 0;border-bottom:1px dashed var(--line);
  display:flex;gap:10px;align-items:flex-start;
}
.cta-points li i{color:var(--neon);font-size:12px;margin-top:7px}
.booking-form{background:var(--ink-300);border:1px solid var(--line);border-radius:var(--r-card);padding:26px}
.field{margin-bottom:20px}
.field label{display:block;font-size:12px;color:var(--t3);margin-bottom:8px;letter-spacing:.04em}
.field input,.field select,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:10px 2px;font-size:15px;color:var(--t1);border-radius:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:76px;line-height:1.7}
.field select{background-color:transparent}
.field select option{background:var(--ink-400);color:var(--t1)}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-bottom-color:var(--neon);box-shadow:0 1px 0 0 var(--neon);
}
.form-note{font-size:12px;color:var(--t3);margin-top:14px}
.form-alert{
  display:none;margin-top:16px;padding:12px 16px;border:1px solid var(--neon);
  border-radius:var(--r-btn);color:var(--neon);font-size:14px;background:rgba(184,255,60,.06);
}
.form-alert.is-on{display:block}

/* ============ footer ============ */
.site-footer{background:var(--ink-000);border-top:1px solid var(--line-strong);padding:66px 0 26px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t2);max-width:340px}
.footer-col h4{font-size:14px;color:var(--t1);letter-spacing:.06em;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--t2)}
.footer-col ul a:hover{color:var(--neon)}
.footer-contact p{font-size:14px;color:var(--t2);margin-bottom:10px}
.footer-contact strong{color:var(--t1);font-weight:500}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--t3);
}

/* ============ motion ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ responsive ============ */
@media (min-width:640px){
  :root{--pad-x:32px}
}
@media (min-width:1024px){
  :root{--pad-x:40px}
  .section{padding:112px 0}
}
@media (min-width:1200px){
  :root{--pad-x:60px}
  .container{max-width:1320px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .header-inner{height:58px}
  .section{padding:72px 0}
  .hero{padding:64px 0 56px}
  .hero-stats{gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:32px}
  .booking-form{margin-top:26px}
}
@media (max-width:767px){
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .hero-actions .btn{width:100%}
  .hero-stat{flex:1 1 40%}
  .step-item{gap:16px}
  .step-num{font-size:24px;width:46px}
  .course-time{width:auto}
  .kv-figure img{aspect-ratio:16/10}
  .quote-grid{gap:20px}
}
@media (max-width:519px){
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:24px 18px}
  .coach-avatar{width:60px;height:60px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
/* ================= 设计变量 ================= */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --r-card:6px;
  --r-btn:4px;
  --r-input:4px;
  --r-badge:999px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:40px;
  --glow:0 0 22px rgba(184,255,60,.16);
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--t1);line-height:1.15;font-weight:700;}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--aqua);outline-offset:2px;}
::selection{background:rgba(184,255,60,.28);color:#fff;}

/* ================= 容器与排版 ================= */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:640px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 40px;}}
@media (min-width:1200px){.container{max-width:1320px;padding:0 60px;}}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--neon);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--neon);
  box-shadow:0 0 10px rgba(184,255,60,.7);
}
.sec-title{
  font-size:clamp(26px,3.4vw,44px);
  line-height:1.1;
  letter-spacing:-.02em;
}
.sec-desc{
  margin-top:14px;
  color:var(--t2);
  font-size:16px;
  max-width:720px;
}
.section{padding:96px 0;position:relative;}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:639px){.section{padding:56px 0;}}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn--primary{
  background:var(--neon);
  color:#08090A;
  box-shadow:0 0 0 1px rgba(184,255,60,.4);
}
.btn--primary:hover{
  background:var(--flame);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 26px rgba(255,90,31,.35);
}
.btn--ghost{
  background:transparent;
  color:var(--t1);
  border:1px solid var(--line);
}
.btn--ghost:hover{
  border-color:var(--neon);
  color:var(--neon);
  transform:translateY(-2px);
  box-shadow:var(--glow);
}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn--link{
  height:auto;
  padding:0;
  color:var(--t1);
  font-weight:600;
  font-size:15px;
}
.btn--link::after{
  content:"→";
  display:inline-block;
  transition:transform .22s ease;
  color:var(--neon);
}
.btn--link:hover{color:var(--neon);}
.btn--link:hover::after{transform:translateX(5px);}

/* ================= 页头导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(8,9,10,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  height:1px;
  width:180px;
  background:linear-gradient(90deg,var(--neon),rgba(184,255,60,0));
}
.site-header.is-scrolled{
  background:rgba(6,7,6,.96);
  box-shadow:0 12px 40px -24px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:58px;
}
@media (min-width:1024px){.header-inner{height:68px;}}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--t1);
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
}
.logo .dot{
  width:9px;
  height:9px;
  background:var(--neon);
  border-radius:1px;
  box-shadow:0 0 12px rgba(184,255,60,.8);
  flex:none;
}
.logo .brand-sub{
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--t3);
  align-self:flex-end;
  margin-bottom:2px;
}
.nav-links{
  display:none;
  align-items:center;
  gap:28px;
}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;
  color:var(--t2);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:2px;
  background:var(--neon);
  transform:scaleX(0);
  transform-origin:left;
  opacity:0;
  transition:transform .25s cubic-bezier(.2,.7,.2,1),opacity .25s ease;
}
.nav-links a:hover{color:var(--neon);}
.nav-links a:hover::after{transform:scaleX(1);opacity:.45;}
.nav-links a.is-active{
  color:var(--neon);
  text-shadow:0 0 12px rgba(184,255,60,.5);
}
.nav-links a.is-active::after{
  transform:scaleX(1);
  opacity:1;
  box-shadow:0 0 12px rgba(184,255,60,.65);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-cta{display:none;}
@media (min-width:1024px){.header-cta{display:inline-flex;}}
.menu-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 11px;
}
.menu-toggle span{
  display:block;
  height:2px;
  background:var(--t1);
  transition:transform .25s ease,opacity .2s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (min-width:1024px){.menu-toggle{display:none;}}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:var(--ink-100);
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block;}
@media (min-width:1024px){.mobile-panel{display:none !important;}}
.mobile-panel ul li a{
  display:block;
  height:56px;
  line-height:56px;
  padding-left:14px;
  font-size:16px;
  color:var(--t2);
  border-left:3px solid transparent;
  border-bottom:1px solid var(--line);
}
.mobile-panel ul li a.is-active{
  color:var(--neon);
  border-left-color:var(--neon);
  background:linear-gradient(90deg,rgba(184,255,60,.08),transparent);
}
.mobile-panel .btn{width:100%;margin-top:18px;}

/* ================= Hero ================= */
.hero{
  position:relative;
  padding:72px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.hero{padding:104px 0 96px;}}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(620px 420px at 12% 6%,rgba(184,255,60,.13),transparent 65%),
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:auto,24px 24px,24px 24px;
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-title{
  margin-top:20px;
  font-size:clamp(38px,5.6vw,80px);
  line-height:1.02;
  letter-spacing:-.03em;
  font-weight:800;
}
.hero-sub{
  margin-top:22px;
  font-size:17px;
  line-height:1.75;
  color:var(--t2);
  max-width:560px;
}
@media (min-width:1024px){.hero-sub{font-size:19px;}}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  color:var(--neon);
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-label{
  margin-top:6px;
  font-size:13px;
  color:var(--t3);
  line-height:1.6;
}
.hero-figure{
  position:relative;
  margin-top:40px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
}
@media (min-width:1024px){.hero-figure{margin-top:0;}}
.hero-figure img{
  width:100%;
  aspect-ratio:16 / 11;
  object-fit:cover;
  filter:saturate(.92) brightness(.82);
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,9,10,0) 40%,rgba(8,9,10,.85) 100%);
  pointer-events:none;
}
.hero-figure figcaption{
  position:absolute;
  left:20px;
  right:20px;
  bottom:18px;
  z-index:2;
  font-size:13px;
  color:var(--t2);
  line-height:1.6;
}

/* ================= 筛选条 ================= */
.filter-bar{
  background:var(--ink-200);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  display:grid;
  gap:20px;
}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
}
.filter-label{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--t3);
  min-width:52px;
}
.chip{
  height:38px;
  padding:0 16px;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:transparent;
  color:var(--t2);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease;
}
.chip:hover{
  border-color:var(--line-strong);
  color:var(--t1);
}
.chip.is-on{
  border-color:var(--neon);
  color:var(--neon);
  background:rgba(184,255,60,.06);
  box-shadow:0 0 18px rgba(184,255,60,.16);
}
.filter-note{
  font-size:13px;
  color:var(--t3);
}

/* ================= 活动列表 ================= */
.event-list{
  margin-top:32px;
  border-top:1px solid var(--line);
}
.event-row{
  position:relative;
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  padding:24px 0 24px 0;
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
@media (min-width:768px){
  .event-row{
    grid-template-columns:112px minmax(0,1fr) auto;
    align-items:center;
    gap:28px;
  }
}
.event-row::before{
  content:"";
  position:absolute;
  left:-14px;
  top:14px;
  bottom:14px;
  width:2px;
  background:var(--neon);
  box-shadow:0 0 14px rgba(184,255,60,.5);
  transform:scaleY(0);
  transition:transform .25s cubic-bezier(.2,.7,.2,1);
}
.event-row:hover::before{transform:scaleY(1);}
.event-date{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:20px;
  font-weight:700;
  color:var(--t1);
  letter-spacing:-.02em;
  line-height:1.2;
}
.event-date small{
  display:block;
  margin-top:4px;
  font-family:var(--font-sans);
  font-size:12px;
  font-weight:400;
  color:var(--t3);
  letter-spacing:.06em;
}
.event-title{
  font-size:19px;
  font-weight:600;
  color:var(--t1);
  line-height:1.4;
}
.event-meta{
  margin-top:8px;
  font-size:14px;
  color:var(--t2);
  line-height:1.7;
}
.badges{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:transparent;
  color:var(--t2);
  font-size:12px;
  letter-spacing:.04em;
}
.badge--flame{
  border-color:rgba(255,90,31,.55);
  color:var(--flame);
}
.badge--neon{
  border-color:var(--line-strong);
  color:var(--neon);
}
.event-action{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--t1);
}
.event-action::after{
  content:"→";
  color:var(--neon);
  transition:transform .22s ease;
}
.event-row:hover .event-action{color:var(--neon);}
.event-row:hover .event-action::after{transform:translateX(5px);}

/* ================= 项目入口 ================= */
.project-list{
  margin-top:36px;
  border-top:1px solid var(--line);
}
.project-item{
  position:relative;
  padding:22px 0 22px 18px;
  border-bottom:1px solid var(--line);
}
.project-item::before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  bottom:22px;
  width:2px;
  background:linear-gradient(180deg,var(--neon),rgba(184,255,60,0));
}
.project-item h3{
  font-size:18px;
  font-weight:600;
}
.project-item p{
  margin-top:8px;
  font-size:14px;
  color:var(--t2);
  line-height:1.75;
}

/* ================= 时间线 ================= */
.timeline{
  position:relative;
  margin-top:40px;
  padding-left:26px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:4px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--neon),rgba(184,255,60,0));
}
.tl-item{
  position:relative;
  padding:0 0 32px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-26px;
  top:8px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 12px rgba(184,255,60,.7);
}
.tl-item.is-live::before{animation:pulse 1.8s ease-out infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(184,255,60,.55);}
  70%{box-shadow:0 0 0 12px rgba(184,255,60,0);}
  100%{box-shadow:0 0 0 0 rgba(184,255,60,0);}
}
.tl-time{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--t3);
  letter-spacing:.06em;
}
.tl-item h3{
  margin-top:6px;
  font-size:20px;
  font-weight:600;
}
.tl-item p{
  margin-top:8px;
  font-size:15px;
  color:var(--t2);
}
.flow-figure{
  margin-top:32px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.flow-figure img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
  filter:saturate(.9) brightness(.85);
}
.flow-figure figcaption{
  padding:14px 18px;
  font-size:13px;
  color:var(--t3);
  border-top:1px solid var(--line);
  background:var(--ink-200);
}

/* ================= 数据表 ================= */
.board-wrap{
  margin-top:36px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--ink-200);
  overflow-x:auto;
}
table.board{
  min-width:720px;
  width:100%;
}
table.board th,
table.board td{
  padding:18px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--t2);
  white-space:nowrap;
}
table.board th{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--t3);
  font-weight:600;
  background:var(--ink-300);
}
table.board td:first-child{
  color:var(--t1);
  font-weight:600;
}
table.board tbody tr{transition:background .2s ease;}
table.board tbody tr:hover{background:var(--ink-300);}
table.board tbody tr:last-child td{border-bottom:0;}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.state-open{color:var(--neon);}
.state-tight{color:var(--flame);}

/* ================= FAQ ================= */
.faq-list{
  margin-top:36px;
  border-top:1px solid var(--line);
}
.faq-item{
  position:relative;
  border-bottom:1px solid var(--line);
}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:22px 44px 22px 18px;
  font-size:17px;
  font-weight:600;
  color:var(--t1);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:14px;
  top:50%;
  transform:translateY(-50%);
  color:var(--neon);
  font-size:20px;
  line-height:1;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item summary:hover{color:var(--neon);}
.faq-item[open]::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:3px;
  background:var(--neon);
  box-shadow:0 0 14px rgba(184,255,60,.45);
}
.faq-answer{
  padding:0 44px 24px 18px;
  font-size:15px;
  line-height:1.9;
  color:var(--t2);
}

/* ================= CTA 与表单 ================= */
.cta-band{
  position:relative;
  background:var(--ink-000);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(8,9,10,.88),rgba(6,7,6,.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.5;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-1px;
  height:2px;
  background:linear-gradient(90deg,rgba(184,255,60,0),var(--neon),rgba(184,255,60,0));
  opacity:.85;
}
.cta-band .container{position:relative;z-index:1;}
.cta-actions{margin-top:28px;}
.signup-form{
  background:rgba(14,17,16,.86);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  backdrop-filter:blur(6px);
}
.form-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:640px){
  .form-grid{grid-template-columns:1fr 1fr;}
  .form-field--full{grid-column:1 / -1;}
}
.form-field label{
  display:block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--t3);
  margin-bottom:8px;
}
.form-field input,
.form-field select{
  width:100%;
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-input);
  padding:10px 2px;
  color:var(--t1);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field select{background-color:var(--ink-200);padding-left:8px;}
.form-field option{background:var(--ink-200);color:var(--t1);}
.form-field input:focus,
.form-field select:focus{
  outline:none;
  border-bottom-color:var(--neon);
  box-shadow:0 8px 16px -12px rgba(184,255,60,.9);
}
.form-actions{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:4px;
}
.form-hint{
  font-size:13px;
  color:var(--t3);
}
.form-feedback{
  display:none;
  grid-column:1 / -1;
  margin-top:6px;
  padding:12px 16px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-input);
  color:var(--neon);
  font-size:14px;
  background:rgba(184,255,60,.06);
}
.form-feedback.is-on{display:block;}

/* ================= 页脚 ================= */
.site-footer{
  background:var(--ink-000);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-1px;
  height:1px;
  background:linear-gradient(90deg,rgba(184,255,60,0),var(--neon),rgba(184,255,60,0));
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;}}
.footer-brand .logo{font-size:19px;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--t2);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.1em;
  color:var(--t1);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--t2);
}
.footer-col ul li a:hover{color:var(--neon);}
.footer-contact p{
  font-size:14px;
  color:var(--t2);
  margin-bottom:10px;
}
.footer-contact strong{color:var(--t1);font-weight:600;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--t3);
}

/* ================= 动效 ================= */
.js .reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1);
}
.js .reveal.is-in{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1;transform:none;transition:none;}
  .tl-item.is-live::before{animation:none;}
  .btn:hover,.event-row:hover .event-action::after{transform:none;}
}
@media (max-width:1023px){
  .hero-figure img{filter:saturate(.92) brightness(.86);}
  .btn--primary:hover{box-shadow:0 0 14px rgba(255,90,31,.22);}
  .btn--ghost:hover{box-shadow:0 0 12px rgba(184,255,60,.1);}
}

/* roulang page: category4 */
:root{
  --ink-000:#060706;
  --ink-100:#08090A;
  --ink-200:#0E1110;
  --ink-300:#161A19;
  --ink-400:#1E2422;
  --neon:#B8FF3C;
  --flame:#FF5A1F;
  --aqua:#2FE3C8;
  --t1:#F4F6F3;
  --t2:#A7AFA8;
  --t3:#6E7671;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(184,255,60,.35);
  --glow:0 0 22px rgba(184,255,60,.16);
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --r-card:6px;
  --r-btn:4px;
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:40px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-100);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--t2);text-decoration:none;transition:color .25s ease,border-color .25s ease;}
a:hover{color:var(--neon);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;}
p{margin:0 0 1.1em;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--aqua);outline-offset:2px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 40px;}}
@media (min-width:1200px){.container{max-width:1320px;padding:0 60px;}}

.grid-x{display:flex;flex-wrap:wrap;}
.grid-x>.cell{width:100%;}
.grid-margin-x{margin-left:-10px;margin-right:-10px;}
.grid-margin-x>.cell{padding-left:10px;padding-right:10px;}
@media (min-width:1024px){.grid-margin-x{margin-left:-14px;margin-right:-14px;}.grid-margin-x>.cell{padding-left:14px;padding-right:14px;}}
.align-middle{align-items:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--neon);color:#08090A;}
.btn-primary:hover{background:var(--flame);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--neon);box-shadow:var(--glow);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--t1);font-weight:600;border-bottom:1px solid transparent;}
.text-link:hover{color:var(--neon);border-bottom-color:var(--neon);}
.text-link i{font-size:12px;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:12px;color:var(--t2);letter-spacing:.06em;
}
.badge-neon{border-color:var(--line-strong);color:var(--neon);}
.badge-flame{border-color:rgba(255,90,31,.5);color:var(--flame);}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  letter-spacing:.18em;color:var(--neon);margin-bottom:var(--sp-2);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,9,10,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(6,7,6,.96);box-shadow:0 0 0 1px rgba(184,255,60,.12),0 8px 30px rgba(0,0,0,.5);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-3);height:58px;
}
@media (min-width:1024px){.header-inner{height:68px;}}
.logo{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--t1);font-size:18px;font-weight:800;letter-spacing:.02em;white-space:nowrap;
}
.logo:hover{color:var(--t1);}
.logo .dot{
  width:9px;height:9px;background:var(--neon);border-radius:2px;
  box-shadow:0 0 12px rgba(184,255,60,.75);flex:none;
}
.logo .brand-sub{color:var(--t3);font-weight:500;font-size:13px;margin-left:2px;}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:6px;margin:0;}
  .nav-links a{
    position:relative;display:block;padding:8px 14px;
    font-size:15px;font-weight:500;color:var(--t2);
  }
  .nav-links a::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
    background:var(--neon);transform:scaleX(0);transform-origin:left;
    transition:transform .28s cubic-bezier(.2,.7,.2,1);
  }
  .nav-links a:hover{color:var(--neon);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.is-active{color:var(--neon);text-shadow:0 0 12px rgba(184,255,60,.5);}
  .nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(184,255,60,.6);}
}
.header-cta{display:none;}
@media (min-width:1024px){.header-cta{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;background:transparent;border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--t1);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--neon);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.mobile-nav{
  display:none;position:fixed;left:0;right:0;top:58px;bottom:0;
  background:rgba(8,9,10,.98);border-top:1px solid var(--line);
  padding:12px 20px 96px;overflow-y:auto;z-index:79;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;height:56px;padding-left:14px;
  border-bottom:1px solid var(--line);font-size:16px;color:var(--t1);
  position:relative;
}
.mobile-nav a.is-active{color:var(--neon);}
.mobile-nav a.is-active::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--neon);
  box-shadow:0 0 10px rgba(184,255,60,.6);
}
.mobile-nav .mobile-cta{position:fixed;left:0;right:0;bottom:0;padding:14px 20px;background:rgba(6,7,6,.98);border-top:1px solid var(--line);}
.mobile-nav .mobile-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(8,9,10,.78),rgba(8,9,10,.96)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
@media (min-width:1024px){.hero{padding:96px 0 104px;}}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(680px 340px at 12% 0%,rgba(184,255,60,.14),transparent 70%),
    repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 1px,transparent 1px 12px);
}
.hero .container{position:relative;z-index:2;}
.hero h1{
  font-size:clamp(32px,5.2vw,64px);
  line-height:1.06;letter-spacing:-.03em;font-weight:800;
  margin:0 0 18px;
}
.hero h1 em{font-style:normal;color:var(--neon);}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:var(--t2);max-width:640px;margin-bottom:var(--sp-3);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:var(--sp-4);}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;}
.hero-stats .stat .num{font-family:var(--font-mono);font-size:clamp(26px,3vw,36px);font-weight:700;color:var(--t1);line-height:1;}
.hero-stats .stat .num span{color:var(--neon);font-size:.55em;margin-left:2px;}
.hero-stats .stat .lbl{font-size:13px;color:var(--t3);margin-top:8px;}
.hero-art{
  margin-top:var(--sp-4);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
  box-shadow:var(--glow);
}
@media (min-width:1024px){.hero-art{margin-top:0;}}
.hero-art img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-art figcaption{font-size:12px;color:var(--t3);padding:10px 14px;background:var(--ink-200);}

/* ---------- 板块 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section--ink{background:var(--ink-200);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:var(--sp-4);}
.section-head h2{font-size:clamp(26px,3.4vw,42px);line-height:1.12;letter-spacing:-.02em;margin-bottom:14px;}
.section-head p{color:var(--t2);margin:0;}

/* ---------- 目录式两栏 ---------- */
.docs-layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.docs-layout{grid-template-columns:296px 1fr;gap:48px;}}
.toc{position:relative;}
@media (min-width:1024px){
  .toc{position:sticky;top:96px;align-self:start;}
}
.toc h2{font-size:14px;letter-spacing:.16em;color:var(--t3);font-weight:600;margin-bottom:16px;}
.toc ol{border-top:1px solid var(--line);}
.toc li{border-bottom:1px solid var(--line);}
.toc a{
  position:relative;display:flex;align-items:baseline;gap:12px;
  padding:14px 10px 14px 12px;font-size:15px;color:var(--t2);line-height:1.5;
}
.toc a::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--neon);transform:scaleY(0);transform-origin:top;
  transition:transform .25s cubic-bezier(.2,.7,.2,1);
}
.toc a:hover{color:var(--neon);}
.toc a:hover::before{transform:scaleY(1);}
.toc a .idx{font-family:var(--font-mono);font-size:12px;color:var(--t3);flex:none;}
.toc .toc-note{margin-top:20px;font-size:13px;color:var(--t3);line-height:1.7;}

.doc-section{padding-bottom:var(--sp-4);margin-bottom:var(--sp-4);border-bottom:1px solid var(--line);}
.doc-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.doc-section h2{
  font-size:clamp(22px,2.4vw,30px);line-height:1.25;
  padding-left:16px;position:relative;margin-bottom:var(--sp-2);
}
.doc-section h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--neon);
  box-shadow:0 0 12px rgba(184,255,60,.45);
}
.doc-section h3{font-size:19px;font-weight:600;margin:var(--sp-3) 0 10px;color:var(--t1);}
.doc-section p{color:var(--t2);}
.points{margin:var(--sp-2) 0 0;}
.points li{
  position:relative;padding:10px 0 10px 30px;
  border-bottom:1px dashed var(--line);
  font-size:15.5px;color:var(--t2);
}
.points li:last-child{border-bottom:0;}
.points li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:13px;font-size:12px;color:var(--neon);
}
.doc-figure{
  margin:var(--sp-3) 0;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--ink-300);
}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.doc-figure figcaption{font-size:12.5px;color:var(--t3);padding:12px 16px;border-top:1px solid var(--line);}

/* ---------- 公告行列表 ---------- */
.notice-list{border-top:1px solid var(--line);margin-top:var(--sp-2);}
.notice-list li{border-bottom:1px solid var(--line);}
.notice-list a{
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:14px;
  padding:16px 12px;position:relative;
}
.notice-list a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--neon);
  transform:scaleY(0);transition:transform .25s ease;
}
.notice-list a:hover::before{transform:scaleY(1);}
.notice-list .n-date{font-family:var(--font-mono);font-size:12.5px;color:var(--t3);display:block;margin-bottom:6px;}
.notice-list .n-title{color:var(--t1);font-size:16px;font-weight:600;line-height:1.5;}
.notice-list a:hover .n-title{color:var(--neon);}
.notice-list .n-arrow{color:var(--t3);font-size:13px;}
.notice-list a:hover .n-arrow{color:var(--neon);}

/* ---------- 数据条 ---------- */
.metric-row{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
@media (min-width:640px){.metric-row{grid-template-columns:repeat(4,1fr);}}
.metric-row .metric{background:var(--ink-200);padding:22px 20px;}
.metric-row .metric .k{font-family:var(--font-mono);font-size:26px;color:var(--neon);line-height:1;}
.metric-row .metric .v{font-size:13.5px;color:var(--t3);margin-top:10px;line-height:1.6;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.faq-grid{grid-template-columns:340px 1fr;gap:56px;}}
.faq-intro h2{font-size:clamp(24px,3vw,36px);line-height:1.15;margin-bottom:14px;}
.faq-intro p{color:var(--t2);margin-bottom:var(--sp-3);}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 44px 20px 18px;color:var(--t1);font-size:16.5px;font-weight:600;line-height:1.55;
  transition:color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;background:var(--neon);
  transform:scaleY(0);transition:transform .25s ease;transform-origin:top;
}
.faq-item summary::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:20px;color:var(--neon);transition:transform .3s ease;
}
.faq-item[open] summary{color:var(--neon);}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item .faq-body{padding:0 44px 22px 18px;font-size:15px;color:var(--t2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink-200);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;overflow:hidden;
}
@media (min-width:1024px){.cta-band{padding:88px 0;}}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--neon),transparent);
  opacity:.7;
}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.18;margin-bottom:14px;}
.cta-band .cta-lead{color:var(--t2);margin-bottom:var(--sp-3);max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:var(--sp-3);}
.form-card{
  background:var(--ink-300);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;
}
@media (min-width:1024px){.form-card{padding:32px;}}
.form-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr;}.form-grid .span-2{grid-column:1 / -1;}}
.field label{display:block;font-size:12px;color:var(--t3);letter-spacing:.06em;margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:10px 2px;color:var(--t1);font-size:15px;border-radius:0;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field select{background:var(--ink-300);}
.field textarea{resize:vertical;min-height:84px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-bottom-color:var(--neon);box-shadow:0 6px 18px -12px rgba(184,255,60,.8);
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:var(--sp-3);}
.form-tip{font-size:13px;color:var(--t3);}
.form-success{
  display:none;align-items:center;gap:10px;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  padding:14px 18px;color:var(--neon);font-size:15px;margin-top:var(--sp-3);
}
.form-success.is-visible{display:flex;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-000);border-top:1px solid var(--line);position:relative;padding-top:56px;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(184,255,60,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
@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:40px;}}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--t3);line-height:1.85;max-width:340px;margin:0;}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--t1);font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--t3);}
.footer-col ul a:hover{color:var(--neon);}
.footer-contact p{font-size:14px;color:var(--t3);margin:0 0 10px;}
.footer-contact strong{color:var(--t2);font-weight:500;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--t3);
}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1);}
.fade-up.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}