/* roulang page: index */
:root{
  --bg:#060913;
  --bg-2:#0A1020;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --primary:#25E0D8;
  --primary-2:#12B8C9;
  --accent:#8B5CF6;
  --reward:#FFB44D;
  --text-1:#EFF5FB;
  --text-2:#A5B3C4;
  --text-3:#6B7A8D;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:22px;
  --shadow:0 22px 48px rgba(0,0,0,.55);
  --shadow-soft:0 14px 32px rgba(0,0,0,.40);
  --glow:0 14px 38px rgba(37,224,216,.30);
  --ease:cubic-bezier(.4,0,.2,1);
  --maxw:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(37,224,216,.16), transparent 62%),
    radial-gradient(760px 520px at 88% 4%, rgba(139,92,246,.16), transparent 60%),
    linear-gradient(180deg,#060913 0%,#080D1A 46%,#060913 100%);
  background-attachment:fixed;
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text-1);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:800;line-height:1.28;letter-spacing:.005em}
h1{font-size:clamp(28px,3.6vw,48px)}
h2{font-size:clamp(23px,3vw,34px)}
h3{font-size:clamp(17px,1.6vw,20px);font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:110px 0;position:relative}
.section--tight{padding:76px 0}
.section__head{max-width:760px;margin-bottom:52px}
.section__head .lead{color:var(--text-2);font-size:16.5px;margin-top:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-weight:700;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent)}
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.grid-x{display:flex;flex-flow:row wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%}
@media (min-width:769px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
}
@media (min-width:1025px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-5{width:41.6666%}
  .large-7{width:58.3333%}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;font-weight:700;border:1px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn i{font-size:.92em}
.btn-lg{padding:17px 34px;font-size:17px}
.btn-md{padding:13px 28px;font-size:15px}
.btn-sm{padding:9px 20px;font-size:13.5px}
.btn-primary{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-2) 48%,var(--accent) 130%);
  color:#03151B;
  box-shadow:0 10px 30px rgba(37,224,216,.32);
}
.btn-primary:hover{color:#03151B;transform:translateY(-3px);box-shadow:0 18px 44px rgba(37,224,216,.46)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-2);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:inset 0 0 20px rgba(37,224,216,.18)}
.btn[disabled],.btn.is-disabled{filter:saturate(.35);opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:7px 12px;border-radius:999px;font-weight:600;letter-spacing:.02em}
.tag--primary{background:rgba(37,224,216,.13);color:var(--primary);border:1px solid rgba(37,224,216,.32)}
.tag--neutral{background:rgba(255,255,255,.06);color:var(--text-2);border:1px solid var(--line)}
.tag--reward{background:rgba(255,180,77,.13);color:var(--reward);border:1px solid rgba(255,180,77,.32)}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;padding:6px 13px;border-radius:999px;background:rgba(37,224,216,.12);color:var(--primary);border:1px solid rgba(37,224,216,.3)}
.badge i{font-size:8px}
.badge--reward{background:rgba(255,180,77,.12);color:var(--reward);border-color:rgba(255,180,77,.3)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,9,19,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;font-weight:800;font-size:17px;color:#03151B;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 8px 22px rgba(37,224,216,.34);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:15.5px;letter-spacing:.02em;font-weight:800}
.brand__text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav__channels{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:flex-start}
.nav__channels a{
  position:relative;font-size:14.5px;color:var(--text-2);padding:9px 13px;border-radius:10px;font-weight:500;
}
.nav__channels a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav__channels a.is-active{color:var(--text-1);font-weight:700}
.nav__channels a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px rgba(37,224,216,.8);
}
.nav__tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(37,224,216,.45);background:rgba(37,224,216,.08)}
.menu-toggle{display:none}

/* 搜索面板 */
.search-panel{
  position:fixed;inset:0;z-index:80;display:none;
  background:rgba(4,7,14,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.search-panel.is-open{display:block}
.search-panel__inner{max-width:680px;margin:14vh auto 0;padding:0 24px}
.search-panel__title{font-size:13px;color:var(--text-3);letter-spacing:.16em;margin-bottom:14px}
.search-field{display:flex;gap:12px;align-items:center}
.search-field input{
  flex:1 1 auto;height:56px;border-radius:14px;padding:0 18px;font-size:16px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-2);color:var(--text-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,224,216,.16)}
.search-hint{margin-top:26px;color:var(--text-2);font-size:14px;line-height:2}
.search-hint span{display:inline-block;margin:0 8px 8px 0;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.search-empty{margin-top:20px;color:var(--text-3);font-size:14px}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:90;
  background:linear-gradient(180deg,#0A1020,#070B16);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s var(--ease);
  padding:22px 22px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer__title{font-size:14px;color:var(--text-3);letter-spacing:.14em}
.drawer__links{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.drawer__links a{padding:13px 14px;border-radius:12px;font-size:15.5px;color:var(--text-2);border:1px solid transparent}
.drawer__links a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer__links a.is-active{color:var(--primary);border-color:rgba(37,224,216,.32);background:rgba(37,224,216,.08)}
.drawer .btn{width:100%}
.scrim{position:fixed;inset:0;background:rgba(4,7,14,.6);z-index:85;display:none}
.scrim.is-open{display:block}

/* ---------- Hero ---------- */
.hero{position:relative;padding:calc(66px + 74px) 0 0;overflow:hidden}
.hero__inner{display:flex;flex-wrap:wrap;align-items:center;gap:48px}
.hero__text{flex:1 1 520px;max-width:600px}
.hero__text h1{margin-bottom:22px}
.hero__text h1 .hl{
  background:linear-gradient(100deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__lead{color:var(--text-2);font-size:17px;line-height:1.9;max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 34px}
.hero__stats{display:flex;flex-wrap:wrap;gap:14px 34px;padding-top:26px;border-top:1px solid var(--line)}
.hero__stats li{display:flex;flex-direction:column;gap:2px}
.hero__stats b{
  font-size:24px;font-weight:800;letter-spacing:.01em;
  background:linear-gradient(120deg,#FFFFFF,var(--primary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__stats span{font-size:13px;color:var(--text-3)}
.hero__visual{flex:1 1 380px;position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.hero__visual img{width:100%;height:420px;object-fit:cover;transition:transform .6s var(--ease)}
.hero__visual:hover img{transform:scale(1.04)}
.hero__visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,9,19,.18) 0%,rgba(6,9,19,.55) 62%,rgba(6,9,19,.9) 100%);
}
.hero__caption{
  position:absolute;left:0;right:0;bottom:0;padding:24px 26px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.hero__caption strong{font-size:15.5px}
.hero__caption small{display:block;color:var(--text-2);font-size:13px;font-weight:400;margin-top:4px}
.hero__glow{
  position:absolute;width:220px;height:220px;border-radius:50%;z-index:1;
  right:-60px;top:-60px;
  background:radial-gradient(circle,rgba(37,224,216,.42),transparent 68%);
  filter:blur(18px);pointer-events:none;
}

/* 状态条 */
.statusbar{
  margin-top:64px;display:flex;flex-wrap:wrap;align-items:center;gap:16px 30px;
  padding:18px 26px;border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(37,224,216,.10),rgba(139,92,246,.10));
  border:1px solid rgba(37,224,216,.22);
}
.statusbar__item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.statusbar__item b{color:var(--text-1);font-weight:700}
.statusbar__sep{width:1px;height:18px;background:var(--line-2)}
@media (max-width:640px){.statusbar__sep{display:none}}

/* ---------- 入口速览 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  display:flex;gap:20px;padding:26px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(255,255,255,.07),rgba(255,255,255,.028));
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(37,224,216,.42);box-shadow:0 24px 46px rgba(0,0,0,.5),0 0 0 1px rgba(37,224,216,.18)}
.entry-card__icon{
  width:52px;height:52px;flex:0 0 auto;border-radius:14px;display:grid;place-items:center;font-size:20px;
  background:linear-gradient(135deg,rgba(37,224,216,.22),rgba(139,92,246,.22));
  border:1px solid rgba(37,224,216,.28);color:var(--primary);
}
.entry-card h3{margin-bottom:8px}
.entry-card p{color:var(--text-2);font-size:14.5px;margin-bottom:12px}
.entry-card .link{font-size:13.5px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:7px}
.entry-card .link i{transition:transform .22s var(--ease)}
.entry-card:hover .link i{transform:translateX(4px)}

/* ---------- 玩法步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:36px;height:1px;
  background:linear-gradient(90deg,rgba(37,224,216,.55),rgba(139,92,246,.45),rgba(37,224,216,.12));
}
.step{position:relative;padding-top:78px}
.step__num{
  position:absolute;top:14px;left:0;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.04em;
  color:#03151B;background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 10px 24px rgba(37,224,216,.32);
}
.step h3{margin-bottom:10px}
.step p{color:var(--text-2);font-size:14.5px;margin:0}

/* ---------- 奖励预览 ---------- */
.reward-wrap{display:grid;grid-template-columns:340px 1fr;gap:30px;align-items:start}
.ladder{padding:26px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}
.ladder h3{margin-bottom:18px}
.ladder__row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px dashed var(--line);
}
.ladder__row:last-child{border-bottom:0}
.ladder__row b{font-size:14.5px;display:block}
.ladder__row small{color:var(--text-3);font-size:12.5px}
.reward-scroll{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.reward-scroll::-webkit-scrollbar{height:6px}
.reward-scroll::-webkit-scrollbar-thumb{background:rgba(37,224,216,.35);border-radius:999px}
.reward-card{
  flex:0 0 260px;scroll-snap-align:start;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(255,180,77,.4)}
.reward-card__img{position:relative;aspect-ratio:16/10;overflow:hidden}
.reward-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.reward-card:hover .reward-card__img img{transform:scale(1.06)}
.reward-card__img .badge{position:absolute;top:12px;left:12px;background:rgba(6,9,19,.72);backdrop-filter:blur(6px)}
.reward-card__body{padding:18px 20px 22px}
.reward-card__body h3{font-size:16.5px;margin-bottom:8px}
.reward-card__body p{font-size:13.5px;color:var(--text-2);margin-bottom:14px}

/* ---------- 任务进度 ---------- */
.progress-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:stretch}
.progress-panel{padding:28px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}
.progress-row{margin-bottom:22px}
.progress-row__top{display:flex;justify-content:space-between;font-size:14px;margin-bottom:9px;color:var(--text-2)}
.progress-row__top b{color:var(--text-1)}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.bar--reward span{background:linear-gradient(90deg,var(--reward),#FF8A3D)}
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  font-size:13.5px;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
}
.chip--done{border-color:rgba(37,224,216,.4);color:var(--primary);background:rgba(37,224,216,.09)}
.chip--doing{border-color:rgba(255,180,77,.4);color:var(--reward);background:rgba(255,180,77,.09)}
.chip--locked{border-style:dashed;color:var(--text-3)}
.ring-panel{
  padding:28px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(139,92,246,.14),rgba(37,224,216,.08));
  display:flex;flex-direction:column;gap:22px;
}
.ring{width:150px;height:150px;border-radius:50%;margin:0 auto;display:grid;place-items:center;
  background:conic-gradient(var(--primary) 0 68%, rgba(255,255,255,.09) 68% 100%);
  box-shadow:0 0 42px rgba(37,224,216,.22);
}
.ring__inner{
  width:114px;height:114px;border-radius:50%;background:#080D1A;display:grid;place-items:center;
  text-align:center;border:1px solid var(--line);
}
.ring__inner b{font-size:28px;font-weight:800;display:block;line-height:1.1}
.ring__inner span{font-size:12.5px;color:var(--text-3)}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.week div{
  aspect-ratio:1/1;border-radius:10px;display:grid;place-items:center;font-size:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-3);
}
.week div.on{background:rgba(37,224,216,.14);border-color:rgba(37,224,216,.4);color:var(--primary);font-weight:700}
.week div.hot{background:rgba(255,180,77,.14);border-color:rgba(255,180,77,.4);color:var(--reward);font-weight:700}

/* ---------- 参与横幅 ---------- */
.join-banner{
  border-radius:var(--radius-lg);padding:48px 44px;position:relative;overflow:hidden;
  background:linear-gradient(115deg,rgba(37,224,216,.16),rgba(139,92,246,.18) 62%,rgba(37,224,216,.08));
  border:1px solid rgba(37,224,216,.26);
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.join-banner::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  right:-90px;bottom:-140px;background:radial-gradient(circle,rgba(37,224,216,.35),transparent 70%);
  filter:blur(10px);pointer-events:none;
}
.join-banner__text{max-width:640px;position:relative;z-index:2}
.join-banner__text h2{margin-bottom:12px}
.join-banner__text p{color:var(--text-2);margin:0}
.join-banner__actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:28px}
.news-feature{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow-soft);transition:transform .24s var(--ease),border-color .24s var(--ease)}
.news-feature:hover{transform:translateY(-4px);border-color:rgba(37,224,216,.42)}
.news-feature__img{aspect-ratio:16/9;overflow:hidden}
.news-feature__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-feature:hover .news-feature__img img{transform:scale(1.05)}
.news-feature__body{padding:26px}
.news-feature__body h3{font-size:20px;margin:14px 0 12px}
.news-feature__body p{color:var(--text-2);font-size:14.5px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3)}
.news-list{display:flex;flex-direction:column;gap:18px}
.news-item{
  display:flex;gap:16px;padding:16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(37,224,216,.4);background:rgba(37,224,216,.06)}
.news-item__img{width:118px;height:84px;flex:0 0 auto;border-radius:10px;overflow:hidden}
.news-item__img img{width:100%;height:100%;object-fit:cover}
.news-item__body h3{font-size:15.5px;margin:8px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item__body p{font-size:13px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-empty{
  padding:56px 30px;text-align:center;border-radius:var(--radius);
  border:1px dashed var(--line-2);background:rgba(255,255,255,.028);
}
.news-empty i{font-size:30px;color:var(--primary);opacity:.75}
.news-empty p{color:var(--text-2);margin:16px 0 18px}

/* ---------- FAQ ---------- */
.accordion{background:transparent;border:0;margin:0}
.accordion-item{
  position:relative;background:linear-gradient(150deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.accordion-item:hover{border-color:rgba(37,224,216,.3)}
.accordion-item.is-active{border-color:rgba(37,224,216,.45);box-shadow:0 0 0 1px rgba(37,224,216,.16),0 18px 40px rgba(0,0,0,.42)}
.accordion-item.is-active::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--accent));box-shadow:0 0 14px rgba(37,224,216,.7);
}
.accordion-title{
  display:block;background:transparent;border:0;padding:20px 58px 20px 24px;position:relative;
  font-size:16.5px;font-weight:700;color:var(--text-1);line-height:1.6;
}
.accordion-title:hover{background:rgba(37,224,216,.05);color:var(--text-1)}
.accordion-title::before{
  content:"";position:absolute;right:24px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .26s var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-30%) rotate(-135deg)}
.accordion-content{background:transparent;border:0;padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ---------- 订阅 CTA ---------- */
.subscribe{
  display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
  padding:44px;border-radius:var(--radius-lg);
  background:linear-gradient(140deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
}
.subscribe h2{margin-bottom:14px}
.subscribe p{color:var(--text-2)}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row input{
  flex:1 1 220px;height:54px;border-radius:10px;padding:0 16px;font-size:15px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-2);color:var(--text-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-row input::placeholder{color:var(--text-3)}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,224,216,.16)}
.form-note{margin-top:14px;font-size:12.5px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;padding:72px 0 0;
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-col .form-row input{height:48px;flex:1 1 100%}
.footer-col .btn{width:100%;margin-top:12px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:600}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav__channels{display:none}
  .menu-toggle{display:grid}
  .hero{padding-top:calc(66px + 52px)}
  .hero__visual img{height:340px}
  .section{padding:84px 0}
  .entry-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .reward-wrap{grid-template-columns:1fr}
  .progress-wrap{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr}
  .subscribe{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero__inner{gap:32px}
  .hero__text{flex:1 1 100%}
  .hero__visual{flex:1 1 100%}
  .hero__visual img{height:260px}
  .hero__stats{gap:16px 26px}
  .hero__stats b{font-size:20px}
  .join-banner{padding:32px 24px}
  .statusbar{margin-top:44px;padding:16px 18px}
  .ring{width:132px;height:132px}
  .ring__inner{width:100px;height:100px}
  .news-item{flex-direction:column}
  .news-item__img{width:100%;height:160px}
}
@media (max-width:520px){
  .entry-card{flex-direction:column;gap:16px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn-lg{width:100%}
  .hero__actions{gap:12px}
  .accordion-title{font-size:15.5px;padding:18px 52px 18px 20px}
}

/* roulang page: article */
:root{
  --bg:#070b14;
  --bg-2:#0b1220;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --primary:#22d6d6;
  --primary-soft:rgba(34,214,214,.14);
  --accent:#8b5cf6;
  --reward:#f5a524;
  --reward-soft:rgba(245,165,36,.14);
  --text-1:#eef4ff;
  --text-2:#a7b5cd;
  --text-3:#6c7c96;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.20);
  --glow:0 0 24px rgba(34,214,214,.35);
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --shadow-1:0 18px 42px rgba(0,0,0,.45);
  --shadow-2:inset 0 1px 0 rgba(255,255,255,.10);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -10%,rgba(34,214,214,.13),transparent 60%),
    radial-gradient(900px 560px at 92% 4%,rgba(139,92,246,.14),transparent 62%),
    var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.2px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.35;letter-spacing:.2px}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{max-width:100%;display:block;border-style:none}
ul,ol{margin:0}
button{font-family:inherit}
::selection{background:rgba(34,214,214,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(7,11,20,.55);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-stuck{background:rgba(7,11,20,.9);border-bottom-color:var(--line);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.nav-wrap{display:flex;align-items:center;gap:26px;height:66px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:18px;font-weight:800;color:#04141a;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:var(--glow);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-size:16px;font-weight:800;letter-spacing:.6px}
.brand__text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:2px}
.nav__channels{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav__channels a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--text-2);white-space:nowrap;
}
.nav__channels a:hover{color:var(--text-1);background:var(--panel)}
.nav__channels a.is-active{color:var(--text-1)}
.nav__channels a.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.nav__tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:.22s var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-2);background:var(--panel-2)}
.nav__toggle{display:none}
.search-panel{display:none;border-top:1px solid var(--line);background:rgba(8,13,23,.96);padding:22px 0}
.search-panel.is-open{display:block}
.search-panel form{display:flex;gap:10px;max-width:640px}
.search-panel input{
  flex:1 1 auto;height:46px;padding:0 16px;border-radius:var(--r-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);font-size:15px;
}
.search-panel input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,214,214,.18)}
.search-hint{margin-top:12px;font-size:13px;color:var(--text-3)}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  color:#04141a;box-shadow:0 10px 30px rgba(34,214,214,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(34,214,214,.45)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(34,214,214,.3)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:inset 0 0 22px rgba(34,214,214,.18);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:13px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;line-height:1;letter-spacing:.4px;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(34,214,214,.35)}
.badge-neutral{background:var(--panel);color:var(--text-2);border:1px solid var(--line)}
.badge-reward{background:var(--reward-soft);color:var(--reward);border:1px solid rgba(245,165,36,.3)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:52px 0 40px;overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.16;
}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,11,20,.6),var(--bg) 88%);
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.breadcrumb span{color:var(--primary)}
.article-hero h1{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:800;
  margin:16px 0 18px;
  max-width:900px;
  line-height:1.4;
}
.meta-bar{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-3)}
.meta-bar span{display:inline-flex;align-items:center;gap:7px}
.meta-bar i{color:var(--primary)}

/* ---------- 正文 ---------- */
.article-main{padding:10px 0 0}
.article-cover{
  max-width:1000px;margin:0 auto 44px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);position:relative;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(7,11,20,.92));
}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text-2)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.35em}
.article-body h2{
  font-size:24px;margin:48px 0 18px;padding-left:14px;line-height:1.45;
  border-left:4px solid var(--primary);color:var(--text-1);
}
.article-body h3{font-size:19px;margin:34px 0 14px;color:var(--text-1)}
.article-body h4{font-size:17px;margin:26px 0 12px;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--primary);border-bottom:1px dashed rgba(34,214,214,.5)}
.article-body a:hover{border-bottom-style:solid}
.article-body strong{color:var(--text-1)}
.article-body img{width:100%;border-radius:var(--r-img);margin:22px 0;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:12px;
  background:var(--panel);border-left:3px solid var(--accent);color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:var(--text-1);background:var(--panel);font-weight:600}
.article-body tr:hover td{background:rgba(255,255,255,.03)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body code{
  padding:2px 7px;border-radius:6px;background:rgba(34,214,214,.1);
  color:var(--primary);font-size:15px;
}
.empty-state{
  text-align:center;padding:64px 28px;border-radius:var(--r-card);
  background:var(--panel);border:1px dashed var(--line-2);
}
.empty-state i{font-size:34px;color:var(--primary);margin-bottom:16px;display:block}
.empty-state h2{font-size:22px;margin-bottom:12px;border:0;padding:0}
.empty-state p{color:var(--text-3);margin-bottom:24px}

/* ---------- 相关推荐 ---------- */
.section{padding:84px 0}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:12px}
.section-head p{color:var(--text-3);font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,214,214,.5);box-shadow:var(--shadow-1)}
.card__media{position:relative;overflow:hidden}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card__media img{transform:scale(1.05)}
.card__media .badge{position:absolute;left:14px;top:14px;background:rgba(7,11,20,.75);backdrop-filter:blur(6px)}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card__body h3{font-size:17px;line-height:1.5}
.card__body p{font-size:14px;color:var(--text-3);flex:1 1 auto}
.card__foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3)}
.card__foot i{color:var(--primary)}
.back-line{
  margin-top:36px;text-align:center;font-size:14px;color:var(--text-3);
}
.back-line a{color:var(--primary);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:20px;overflow:hidden;
  background:linear-gradient(120deg,rgba(34,214,214,.16),rgba(139,92,246,.18));
  border:1px solid rgba(34,214,214,.28);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,214,214,.35),transparent 70%);
}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:70px 0 28px;
  background:linear-gradient(180deg,rgba(11,18,32,.55),rgba(7,11,20,.98));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-3);max-width:320px}
.footer-col h3{font-size:14px;letter-spacing:1px;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.form-row{display:flex;gap:8px}
.form-row input{
  flex:1 1 auto;height:40px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);font-size:14px;
}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,214,214,.18)}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3)}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:980px){
  .nav__channels{
    position:fixed;top:0;right:0;height:100vh;width:min(304px,86vw);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:92px 20px 32px;gap:6px;
    background:rgba(9,14,25,.98);backdrop-filter:blur(20px);
    border-left:1px solid var(--line);box-shadow:-24px 0 60px rgba(0,0,0,.5);
    transform:translateX(103%);transition:transform .3s var(--ease);z-index:95;
  }
  .nav__channels.is-open{transform:translateX(0)}
  .nav__channels a{padding:14px 16px;border-radius:12px;font-size:15px}
  .nav__channels a.is-active{background:var(--primary-soft)}
  .nav__channels a.is-active::after{display:none}
  .nav__toggle{display:grid}
  .nav__tools .btn-sm{display:none}
  .nav__channels::before{
    content:"频道导航";font-size:12px;letter-spacing:2px;color:var(--text-3);
    padding:0 16px 12px;display:block;
  }
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-wrap{gap:14px}
  .brand__text em{display:none}
  .article-hero{padding:38px 0 28px}
  .section{padding:56px 0}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px}
  .site-footer{margin-top:64px;padding:52px 0 24px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .search-panel form{flex-direction:column}
  .btn{height:46px;padding:0 20px}
  .article-cover{margin-bottom:30px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#070b16;
  --bg-2:#0b1122;
  --panel:rgba(255,255,255,.05);
  --panel-2:rgba(255,255,255,.08);
  --primary:#22e0d0;
  --primary-deep:#12a8bd;
  --accent:#8b5cf6;
  --reward:#ffb545;
  --text-1:#f1f6fb;
  --text-2:#a9b6c8;
  --text-3:#6e7c92;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-card:0 20px 44px -22px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 26px rgba(34,224,208,.32);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(34,224,208,.16), transparent 62%),
    radial-gradient(620px 460px at 92% 4%, rgba(139,92,246,.16), transparent 64%),
    radial-gradient(700px 520px at 50% 108%, rgba(18,168,189,.12), transparent 68%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover,a:focus{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em}
button,input,select,textarea{font-family:inherit;font-size:100%}
button{background:none;border:0;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
  white-space:nowrap;line-height:1;
}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-md{padding:12px 24px;font-size:14px}
.btn-sm{padding:9px 17px;font-size:13px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#04141a;box-shadow:0 12px 30px -14px rgba(34,224,208,.85);
}
.btn-primary:hover,.btn-primary:focus{transform:translateY(-2px);box-shadow:0 16px 36px -12px rgba(34,224,208,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(34,224,208,.9)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--primary);box-shadow:inset 0 0 20px rgba(34,224,208,.18);transform:translateY(-2px);color:var(--text-1)}

/* ===== 标签 ===== */
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;line-height:1;padding:6px 12px;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.04)}
.tag-primary{color:#062126;background:linear-gradient(135deg,rgba(34,224,208,.9),rgba(139,92,246,.85));border-color:transparent;font-weight:600}
.tag-amber{color:var(--reward);border-color:rgba(255,181,69,.4);background:rgba(255,181,69,.1)}
.tag-muted{color:var(--text-3)}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:var(--nav-h);
  transition:background-color .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.84);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.header__inner{display:flex;align-items:center;gap:26px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#04141a;font-weight:800;font-size:17px;box-shadow:var(--glow);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-size:15px;font-weight:700}
.brand__text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav__channels{display:flex;align-items:center;gap:4px}
.nav__channels a{
  position:relative;padding:9px 13px;font-size:14px;color:var(--text-2);border-radius:999px;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav__channels a:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.nav__channels a.is-active{color:var(--text-1);font-weight:600}
.nav__channels a.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.header__side{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 15px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);font-size:13px;
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-strong);background:rgba(255,255,255,.08)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--text-1)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-mask{position:fixed;inset:0;background:rgba(3,6,13,.68);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:70}
.nav-mask.is-open{opacity:1;visibility:visible}
.nav__drawer-cta{display:none}

/* 搜索面板 */
.search-panel{
  position:fixed;top:0;left:0;right:0;z-index:90;padding:78px 0 30px;
  background:rgba(7,11,22,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);
  transform:translateY(-102%);transition:transform .3s var(--ease);
}
.search-panel.is-open{transform:translateY(0)}
.search-panel .container{max-width:760px}
.search-field{display:flex;gap:10px}
.search-field input{
  flex:1;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-input);
  padding:14px 16px;color:var(--text-1);font-size:15px;
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,224,208,.18)}
.search-hint{margin-top:16px;font-size:13px;color:var(--text-3)}
.search-recent{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.search-close{position:absolute;right:24px;top:22px;color:var(--text-2);font-size:13px;padding:8px 14px;border-radius:999px;border:1px solid var(--line)}

/* ===== 分类 Hero ===== */
.cat-hero{
  position:relative;padding:calc(var(--nav-h) + 62px) 0 66px;
  background-image:linear-gradient(115deg,rgba(5,9,18,.94) 8%,rgba(5,9,18,.72) 52%,rgba(7,11,22,.9) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-60px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,208,.22),transparent 66%);pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--text-3);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--text-1)}
.crumb span.sep{color:var(--text-3);opacity:.6}
.crumb .current{color:var(--primary)}
.cat-hero__inner{max-width:760px;position:relative;z-index:2}
.cat-hero h1{font-size:40px;font-weight:800;line-height:1.25;margin:16px 0 18px}
.cat-hero__lead{font-size:17px;color:var(--text-2);margin-bottom:28px;max-width:620px}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.cat-hero__stats{display:flex;flex-wrap:wrap;gap:36px}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--primary);line-height:1.2}
.stat span{font-size:13px;color:var(--text-3)}

/* ===== 板块 ===== */
.sec{padding:96px 0;position:relative}
.sec-alt{background:rgba(255,255,255,.018);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:46px}
.sec-head h2{font-size:32px;font-weight:800;margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:16px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.18em;color:var(--primary);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px var(--primary)}

/* ===== 卡片 ===== */
.card{
  height:100%;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,224,208,.42);box-shadow:0 26px 50px -24px rgba(0,0,0,.9),0 0 0 1px rgba(34,224,208,.14)}
.card__thumb{border-radius:var(--radius-img);overflow:hidden;background:#101a2c;aspect-ratio:16/10;margin-bottom:18px}
.card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease)}
.card:hover .card__thumb img{transform:scale(1.05)}
.card h3{font-size:18px;font-weight:700;margin:12px 0 10px}
.card p{color:var(--text-2);font-size:15px;margin:0}
.card__meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card-grid{margin-bottom:-24px}
.card-grid > .cell{margin-bottom:24px}

/* ===== 时间轴 ===== */
.timeline{margin-top:10px}
.tl-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:22px;padding-bottom:36px}
.tl-item::before{
  content:"";position:absolute;left:31px;top:58px;bottom:-4px;width:1px;
  background:linear-gradient(180deg,rgba(34,224,208,.55),rgba(139,92,246,.25),transparent);
}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-num{
  width:62px;height:62px;border-radius:18px;display:grid;place-items:center;
  font-size:18px;font-weight:800;color:var(--primary);
  background:rgba(34,224,208,.09);border:1px solid rgba(34,224,208,.34);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 24px -12px rgba(34,224,208,.9);
  position:relative;z-index:2;
}
.tl-body{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 26px;transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.tl-body:hover{border-color:rgba(34,224,208,.36);transform:translateY(-2px)}
.tl-body h3{font-size:18px;margin-bottom:8px}
.tl-body p{color:var(--text-2);font-size:15px;margin:0}
.tl-body .tl-hint{display:inline-flex;margin-top:12px}

/* ===== 表格 ===== */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  background:var(--panel);box-shadow:var(--shadow-card);
}
.table-scroll{overflow-x:auto}
table.entry-table{width:100%;min-width:640px;border-collapse:collapse}
table.entry-table caption{text-align:left;padding:20px 24px 0;color:var(--text-3);font-size:13px}
table.entry-table th,table.entry-table td{
  padding:18px 24px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
table.entry-table thead th{
  background:rgba(255,255,255,.05);color:var(--text-1);font-weight:700;font-size:14px;letter-spacing:.03em;
}
table.entry-table tbody td{color:var(--text-2)}
table.entry-table tbody td:first-child{color:var(--text-1);font-weight:600}
table.entry-table tbody tr:last-child td{border-bottom:0}
table.entry-table tbody tr:hover td{background:rgba(34,224,208,.05)}

/* ===== 清单 ===== */
.check-list{display:grid;gap:14px;margin-top:8px}
.check-list li{
  position:relative;padding:18px 22px 18px 54px;border-radius:14px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);font-size:15px;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.check-list li:hover{border-color:rgba(34,224,208,.34);transform:translateX(3px)}
.check-list li::before{
  content:"";position:absolute;left:22px;top:24px;width:14px;height:8px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);box-shadow:0 0 10px rgba(34,224,208,.6);
}
.check-list strong{color:var(--text-1);font-weight:600}

/* ===== 图文分栏 ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split__media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.split h3{font-size:22px;margin-bottom:14px}
.split p{color:var(--text-2)}
.mini-list{display:grid;gap:12px;margin-top:20px}
.mini-list li{display:flex;gap:10px;color:var(--text-2);font-size:15px}
.mini-list li::before{content:"";flex:0 0 6px;height:6px;border-radius:50%;background:var(--primary);margin-top:12px;box-shadow:0 0 10px var(--primary)}

/* ===== FAQ ===== */
.faq{display:grid;gap:14px;max-width:900px}
.faq h3{margin:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  position:relative;transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q::after{
  content:"";flex:0 0 12px;width:12px;height:12px;border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);transition:transform .26s var(--ease),border-color .26s var(--ease);margin-right:4px;
}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(34,224,208,.42);box-shadow:0 0 0 1px rgba(34,224,208,.12),0 0 34px -16px rgba(34,224,208,.75)}
.faq-item.is-open .faq-q::after{transform:rotate(-135deg);border-color:var(--primary)}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 14px var(--primary);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{margin:0;padding:0 24px 22px;color:var(--text-2);font-size:15px}

/* ===== CTA ===== */
.cta-band{
  position:relative;border-radius:22px;padding:52px 44px;text-align:center;overflow:hidden;
  background:linear-gradient(135deg,rgba(34,224,208,.16),rgba(139,92,246,.16)),rgba(255,255,255,.04);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;left:50%;bottom:-160px;transform:translateX(-50%);
  width:520px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(34,224,208,.24),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:30px;margin-bottom:14px;position:relative;z-index:2}
.cta-band p{color:var(--text-2);max-width:640px;margin:0 auto 26px;position:relative;z-index:2}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;position:relative;z-index:2}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-3);position:relative;z-index:2}

/* ===== 页脚 ===== */
.site-footer{background:rgba(4,8,16,.92);border-top:1px solid var(--line);padding:66px 0 26px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14px;margin:0;max-width:300px}
.footer-col h3{font-size:14px;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--text-2);font-size:14px;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.form-row{display:flex;gap:8px}
.form-row input{
  flex:1;min-width:0;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:var(--radius-input);padding:11px 14px;color:var(--text-1);font-size:14px;
}
.form-row input::placeholder{color:var(--text-3)}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,224,208,.18)}
.form-note{font-size:12px;color:var(--text-3);margin:12px 0 0}
.footer-bottom{
  margin-top:46px;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(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:600}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .sec{padding:72px 0}
  .cat-hero{padding:calc(var(--nav-h) + 46px) 0 54px}
  .cat-hero h1{font-size:32px}
  .sec-head h2{font-size:27px}
  .split{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav__channels{
    position:fixed;top:0;right:0;width:min(320px,86vw);height:100vh;height:100dvh;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(8,13,25,.98);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);padding:88px 20px 120px;
    transform:translateX(102%);transition:transform .3s var(--ease);z-index:85;overflow-y:auto;
  }
  .nav__channels.is-open{transform:translateX(0)}
  .nav__channels a{padding:14px 14px;font-size:16px;border-radius:12px}
  .nav__channels a.is-active{background:rgba(34,224,208,.1)}
  .nav__channels a.is-active::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav__drawer-cta{
    display:block;position:fixed;right:0;bottom:0;width:min(320px,86vw);z-index:86;
    padding:16px 20px 24px;background:linear-gradient(180deg,transparent,rgba(8,13,25,.98) 42%);
    transform:translateX(102%);transition:transform .3s var(--ease);
  }
  .nav__drawer-cta.is-open{transform:translateX(0)}
  .nav__drawer-cta .btn{width:100%}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .sec{padding:56px 0}
  .cat-hero h1{font-size:27px}
  .cat-hero__lead{font-size:15.5px}
  .cat-hero__stats{gap:24px}
  .stat b{font-size:22px}
  .sec-head h2{font-size:23px}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-num{width:46px;height:46px;border-radius:14px;font-size:15px}
  .tl-item::before{left:23px;top:44px}
  .tl-body{padding:18px 20px}
  .cta-band{padding:38px 22px}
  .cta-band h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .card{padding:20px}
  .split h3{font-size:19px}
}
@media (max-width:520px){
  .cat-hero__actions .btn{width:100%}
  .search-field{flex-direction:column}
  .brand__text em{display:none}
  .table-scroll table.entry-table{min-width:560px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg:#070b16;
  --bg-2:#0b1224;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --primary:#22e0d0;
  --primary-2:#12a8c9;
  --accent:#8b6cff;
  --reward:#ffc267;
  --text-1:#f1f6fc;
  --text-2:#a7b5ca;
  --text-3:#72829b;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);
  --radius:16px;
  --radius-lg:22px;
  --radius-sm:10px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.07), 0 22px 44px -26px rgba(0,0,0,.9);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.12), 0 30px 56px -26px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(34,224,208,.35), 0 16px 36px -16px rgba(34,224,208,.6);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num:"Bahnschrift", "DIN Alternate", "Oswald", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 10% -6%, rgba(34,224,208,.16), transparent 62%),
    radial-gradient(760px 480px at 94% 2%, rgba(139,108,255,.15), transparent 60%),
    linear-gradient(180deg,#070b16 0%, #080d1c 42%, #060a14 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:#7ff3e8;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:750;line-height:1.32;letter-spacing:.01em;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
strong{color:var(--text-1);}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:var(--primary);color:#04121a;padding:10px 18px;border-radius:0 0 10px 0;font-weight:700;}
.skip-link:focus{left:0;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,22,.42);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.86);
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -30px rgba(0,0,0,1);
}
.header__inner{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#04141b;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 10px 22px -12px rgba(34,224,208,.9);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:16px;font-weight:750;color:var(--text-1);letter-spacing:.01em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.22em;}
.nav__channels{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;}
.nav__channels a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav__channels a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav__channels a.is-active{color:var(--text-1);}
.nav__channels a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px rgba(34,224,208,.85);
}
.header__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(34,224,208,.5);box-shadow:0 0 0 1px rgba(34,224,208,.25);}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);cursor:pointer;
  padding:9px 10px;flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* 搜索面板 */
.search-panel{
  border-top:1px solid var(--line);
  background:rgba(8,13,26,.94);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:22px 0 26px;
}
.search-panel__form{display:flex;gap:12px;max-width:720px;}
.search-panel__form input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 16px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--text-1);font-size:15px;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.search-panel__form input::placeholder{color:var(--text-3);}
.search-panel__form input:focus{outline:none;border-color:rgba(34,224,208,.6);box-shadow:0 0 0 3px rgba(34,224,208,.16);}
.search-panel__hint{margin-top:14px;font-size:13px;color:var(--text-3);}
.search-panel__hint a{color:var(--text-2);margin-right:14px;}
.search-panel__hint a:hover{color:var(--primary);}
.scrim{position:fixed;inset:0;background:rgba(3,6,13,.6);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s;z-index:70;}
body.search-open .scrim{opacity:1;visibility:visible;}

/* 移动端抽屉 */
.drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(8,13,26,.97);padding:16px 0 24px;
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;padding:13px 16px;border-radius:12px;color:var(--text-2);font-size:16px;
}
.drawer a:hover,.drawer a.is-active{background:rgba(255,255,255,.06);color:var(--text-1);}
.drawer .btn{margin-top:12px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;text-align:center;
  border-radius:999px;font-weight:650;font-size:15px;
  padding:12px 26px;line-height:1.2;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.btn-primary{
  color:#04181d;
  background:linear-gradient(120deg,var(--primary) 0%, #4dd6ff 45%, var(--accent) 100%);
  box-shadow:0 16px 34px -18px rgba(34,224,208,.9);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 44px -16px rgba(34,224,208,1), 0 0 0 1px rgba(34,224,208,.4);color:#04181d;}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text-1);background:transparent;border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:rgba(34,224,208,.65);color:var(--primary);box-shadow:inset 0 0 18px -6px rgba(34,224,208,.55);transform:translateY(-3px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 34px;font-size:16px;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:rgba(255,255,255,.2);}
.crumbs .current{color:var(--primary);}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;padding:132px 0 78px;overflow:hidden;}
.page-hero__bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.62) 0%, rgba(7,11,22,.9) 58%, var(--bg) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.page-hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--primary);
  background:rgba(34,224,208,.10);border:1px solid rgba(34,224,208,.28);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:800;letter-spacing:.005em;margin-bottom:18px;
  background:linear-gradient(120deg,#ffffff 0%, #d5f7f4 55%, #b6aaff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero__lead{font-size:17px;color:var(--text-2);max-width:600px;margin-bottom:26px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.chip{
  font-size:12.5px;color:var(--text-2);
  border:1px solid var(--line);background:var(--panel);
  padding:6px 14px;border-radius:999px;
}
.chip--primary{color:var(--primary);border-color:rgba(34,224,208,.35);background:rgba(34,224,208,.08);}
.chip--reward{color:var(--reward);border-color:rgba(255,194,103,.3);background:rgba(255,194,103,.08);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.hero-figure img{width:100%;height:340px;object-fit:cover;}
.hero-figure__mask{position:absolute;inset:0;background:linear-gradient(200deg,rgba(7,11,22,.05) 20%, rgba(7,11,22,.85) 100%);}
.hero-figure__tag{
  position:absolute;left:20px;bottom:20px;right:20px;
  display:flex;align-items:center;gap:12px;
  background:rgba(9,14,26,.72);border:1px solid var(--line);
  backdrop-filter:blur(10px);border-radius:14px;padding:12px 16px;
}
.hero-figure__tag strong{display:block;font-size:15px;}
.hero-figure__tag span{font-size:12.5px;color:var(--text-3);}
.hero-figure__tag .badge{margin-left:auto;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;line-height:1.5;
  background:rgba(34,224,208,.12);color:var(--primary);border:1px solid rgba(34,224,208,.3);
}
.badge--neutral{background:rgba(255,255,255,.07);color:var(--text-2);border-color:var(--line);}
.badge--reward{background:rgba(255,194,103,.12);color:var(--reward);border-color:rgba(255,194,103,.3);}

/* ---------- 状态条 ---------- */
.status-bar{
  margin-top:-1px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.028);
  backdrop-filter:blur(10px);
}
.status-bar__inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px 34px;padding:16px 0;}
.status-item{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-2);}
.status-item b{font-family:var(--font-num);font-size:18px;color:var(--text-1);letter-spacing:.02em;}

/* ---------- 板块 ---------- */
.section{padding:110px 0;}
.section--tight{padding:78px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}
.h2-bar{position:relative;padding-left:16px;}
.h2-bar::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  box-shadow:0 0 16px rgba(34,224,208,.6);
}

/* ---------- 双栏布局 ---------- */
.split-grid{row-gap:34px;}
.sticky-col{position:sticky;top:96px;}
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);margin-bottom:20px;
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.side-card:hover{border-color:var(--line-strong);}
.side-card h3{font-size:15px;letter-spacing:.06em;color:var(--text-1);margin-bottom:14px;}
.side-card h3 span{color:var(--primary);}
.side-nav li{margin-bottom:2px;}
.side-nav a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.side-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1);border-left-color:var(--primary);}
.side-card--note{background:linear-gradient(140deg,rgba(139,108,255,.14),rgba(255,255,255,.035));border-color:rgba(139,108,255,.28);}
.side-card--note p{font-size:14px;color:var(--text-2);margin:0;}
.side-card--cta{background:linear-gradient(140deg,rgba(34,224,208,.14),rgba(255,255,255,.035));border-color:rgba(34,224,208,.3);}
.side-card--cta p{font-size:14px;color:var(--text-2);margin-bottom:16px;}

.article-body h2{font-size:clamp(21px,2.2vw,26px);margin:0 0 16px;}
.article-body h2:not(:first-child){margin-top:56px;}
.article-body h3{font-size:17.5px;margin-bottom:10px;}
.article-body p{color:var(--text-2);}
.article-body .lead-strong{color:var(--text-1);font-weight:600;margin-bottom:18px;}
.tick-list{margin:0 0 26px;}
.tick-list li{
  position:relative;padding-left:28px;margin-bottom:12px;color:var(--text-2);font-size:15.5px;
}
.tick-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 10px rgba(34,224,208,.8);
}
.tick-list li b{color:var(--text-1);font-weight:600;}

.callout{
  border-radius:var(--radius);
  border:1px solid rgba(34,224,208,.28);
  background:linear-gradient(120deg,rgba(34,224,208,.10),rgba(255,255,255,.03));
  padding:20px 22px;margin:26px 0;
  font-size:15px;color:var(--text-2);
}
.callout strong{display:block;color:var(--text-1);margin-bottom:6px;font-size:15.5px;}

/* ---------- 表格 ---------- */
.table-scroll{
  overflow-x:auto;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);margin-bottom:18px;
}
table.compare{width:100%;min-width:640px;border-collapse:collapse;}
table.compare thead th{
  text-align:left;font-size:13px;letter-spacing:.08em;color:var(--primary);
  padding:16px 20px;background:rgba(34,224,208,.07);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare tbody td{
  padding:16px 20px;font-size:14.8px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);vertical-align:top;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover td{background:rgba(255,255,255,.035);color:var(--text-1);}
table.compare tbody td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap;}
.table-note{font-size:13px;color:var(--text-3);}

/* ---------- 图文交替 ---------- */
.media-row{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  margin:52px 0;
}
.media-row:last-child{margin-bottom:0;}
.media-row__media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.media-row__media img{width:100%;height:300px;object-fit:cover;transition:transform .5s var(--ease);}
.media-row:hover .media-row__media img{transform:scale(1.04);}
.media-row__media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(7,11,22,0) 40%,rgba(7,11,22,.72) 100%);}
.media-row--reverse .media-row__media{order:2;}
.media-row__text h3{font-size:20px;margin-bottom:12px;}
.media-row__text p{color:var(--text-2);font-size:15.5px;}
.step-inline{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.step-inline span{
  font-size:12.5px;color:var(--text-2);border:1px solid var(--line);
  background:var(--panel);border-radius:999px;padding:5px 13px;
}
.media-tag{
  position:absolute;left:18px;top:18px;z-index:2;
  font-size:12px;font-weight:600;color:#04181d;
  background:linear-gradient(120deg,var(--primary),#4dd6ff);
  padding:5px 13px;border-radius:999px;
}

/* ---------- FAQ ---------- */
.faq-accordion{background:transparent;border:none;margin:0;}
.faq-accordion .accordion-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:var(--line-strong);}
.faq-accordion .accordion-item.is-active{
  border-color:rgba(34,224,208,.45);
  box-shadow:0 0 0 1px rgba(34,224,208,.16), 0 20px 40px -26px rgba(34,224,208,.7);
}
.faq-accordion .accordion-title{
  background:transparent;border:none;color:var(--text-1);
  font-size:16.5px;font-weight:650;line-height:1.55;
  padding:20px 56px 20px 26px;position:relative;display:block;
  transition:box-shadow .24s var(--ease), color .24s var(--ease);
}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.faq-accordion .accordion-title::after{display:none;}
.faq-accordion .accordion-item.is-active .accordion-title{box-shadow:inset 3px 0 0 0 var(--primary);}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"–";}
.faq-accordion .accordion-content{
  border:none;background:transparent;color:var(--text-2);
  padding:0 26px 22px;font-size:15.4px;line-height:1.85;
}
.faq-accordion .accordion-content p{margin-bottom:.8em;}
.faq-accordion .accordion-content a{color:var(--primary);}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(34,224,208,.16),rgba(139,108,255,.14)),rgba(255,255,255,.035);
  padding:46px 44px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;right:-70px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,208,.32),transparent 68%);
}
.cta-band__inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:640px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(255,255,255,0));
  padding:70px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:52px;}
.footer-brand p{color:var(--text-3);font-size:14px;margin:18px 0 0;max-width:320px;}
.footer-col h3{font-size:14px;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14.5px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.form-row{display:flex;gap:10px;margin-bottom:12px;}
.form-row input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--text-1);font-size:14px;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{outline:none;border-color:rgba(34,224,208,.6);box-shadow:0 0 0 3px rgba(34,224,208,.16);}
.form-note{font-size:12.5px;color:var(--text-3);margin:0;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:var(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:600;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:86px 0;}
  .page-hero{padding:112px 0 64px;}
  .page-hero__grid{grid-template-columns:1fr;gap:34px;}
  .hero-figure img{height:290px;}
  .sticky-col{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .media-row{gap:30px;}
}
@media (max-width:860px){
  .nav__channels{display:none;}
  .nav-toggle{display:flex;}
  .header__actions .btn{display:none;}
  .media-row{grid-template-columns:1fr;margin:40px 0;}
  .media-row--reverse .media-row__media{order:0;}
  .media-row__media img{height:240px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .page-hero{padding:96px 0 52px;}
  .page-hero h1{font-size:27px;}
  .page-hero__lead{font-size:15.5px;}
  .hero-figure img{height:220px;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:30px 22px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .status-bar__inner{gap:12px 22px;}
  .side-card{padding:18px;}
  .search-panel__form{flex-direction:column;}
  .search-panel__form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg:#070b16;
  --bg-soft:#0b1222;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.075);
  --primary:#22e0d6;
  --primary-deep:#0e9c98;
  --accent:#8b5cf6;
  --reward:#ffb547;
  --text-1:#f2f6ff;
  --text-2:#a9b6cf;
  --text-3:#6f7d99;
  --line:rgba(255,255,255,.1);
  --line-strong:rgba(255,255,255,.18);
  --glow:0 0 0 1px rgba(34,224,214,.25),0 14px 38px rgba(34,224,214,.22);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 18px 42px rgba(2,6,18,.55);
  --shadow-2:inset 0 1px 0 rgba(255,255,255,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 480px at 10% -10%,rgba(34,224,214,.16),transparent 62%),
    radial-gradient(820px 520px at 92% 4%,rgba(139,92,246,.16),transparent 64%),
    radial-gradient(600px 400px at 50% 110%,rgba(34,224,214,.07),transparent 70%);
  pointer-events:none;
  z-index:0;
}

a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
img{max-width:100%;height:auto;display:block;border:0;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.32;font-weight:800;letter-spacing:.005em;color:var(--text-1);}
p{margin:0 0 1.15em;color:var(--text-2);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--primary);color:#04201f;
  padding:10px 18px;border-radius:0 0 12px 0;z-index:200;font-weight:700;
}
.skip-link:focus{left:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:64px;
  display:flex;
  align-items:center;
  background:rgba(7,11,22,.42);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(6px);
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(2,6,18,.5);
  backdrop-filter:blur(14px);
}
.header__inner{
  display:flex;
  align-items:center;
  gap:26px;
  width:100%;
}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#04201f;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:var(--glow);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:15px;font-weight:800;letter-spacing:.02em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.16em;}

.nav__channels{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:6px;
  flex:1 1 auto;
}
.nav__channels a{
  position:relative;
  padding:8px 13px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
}
.nav__channels a::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
  box-shadow:0 0 12px rgba(34,224,214,.7);
}
.nav__channels a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav__channels a:hover::after,.nav__channels a.is-active::after{transform:scaleX(1);}
.nav__channels a.is-active{color:var(--text-1);font-weight:700;}

.header__side{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  font-size:15px;
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:rgba(34,224,214,.5);background:rgba(34,224,214,.1);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  border-radius:999px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  padding:14px 30px;
  font-size:15px;
  line-height:1;
  transition:all .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  color:#04201f;
  background:linear-gradient(135deg,var(--primary) 0%,#4fd6c4 45%,var(--accent) 130%);
  box-shadow:0 10px 26px rgba(34,224,214,.28);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 16px 40px rgba(34,224,214,.46);
  color:#04201f;
}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text-1);
  border-color:var(--line-strong);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary);
  box-shadow:inset 0 0 22px rgba(34,224,214,.16),0 10px 26px rgba(2,6,18,.5);
  transform:translateY(-3px);
}
.btn-sm{padding:10px 20px;font-size:13.5px;}
.btn-lg{padding:17px 38px;font-size:16px;}

/* ============ 搜索面板 ============ */
.search-panel{
  position:fixed;
  inset:0;
  z-index:140;
  display:flex;
  justify-content:center;
  align-items:flex-start;
  padding:118px 24px 40px;
  background:rgba(4,7,15,.82);
  backdrop-filter:blur(12px);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.search-panel.is-open{opacity:1;visibility:visible;}
.search-box{
  width:100%;
  max-width:660px;
  background:linear-gradient(180deg,rgba(18,26,44,.95),rgba(9,14,26,.95));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.search-box h3{font-size:18px;margin-bottom:14px;}
.search-field{
  display:flex;
  align-items:center;
  gap:10px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:0 14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,224,214,.16);}
.search-field i{color:var(--text-3);}
.search-field input{
  flex:1;
  background:transparent;
  border:0;
  outline:none;
  color:var(--text-1);
  font-size:15px;
  padding:14px 0;
}
.search-field input::placeholder{color:var(--text-3);}
.search-hint{font-size:13px;color:var(--text-3);margin:14px 0 0;}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.search-close{
  position:absolute;
  top:26px;right:26px;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text-2);
  display:grid;place-items:center;
}
.search-close:hover{color:var(--primary);border-color:var(--primary);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:min(330px,88vw);
  z-index:160;
  background:linear-gradient(180deg,#0b1222,#070b16);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  padding:22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer__nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer__nav a{
  padding:13px 14px;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--text-2);
  font-size:15px;
}
.drawer__nav a:hover,.drawer__nav a.is-active{
  color:var(--text-1);
  background:rgba(34,224,214,.1);
  border-color:rgba(34,224,214,.32);
}
.drawer__nav a.is-active{font-weight:700;}
.drawer__cta{display:flex;flex-direction:column;gap:10px;}
.overlay{
  position:fixed;inset:0;z-index:150;
  background:rgba(4,7,15,.7);
  opacity:0;visibility:hidden;
  transition:.28s var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--text-3);
  padding-top:108px;
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--primary);}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.06);
  filter:saturate(1.05);
}
.page-hero__bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(7,11,22,.96) 0%,rgba(7,11,22,.86) 46%,rgba(7,11,22,.62) 100%);
}
.page-hero__inner{
  position:relative;
  z-index:2;
  padding:26px 0 74px;
  max-width:840px;
}
.page-hero h1{
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.24;
  margin:20px 0 18px;
  letter-spacing:-.01em;
}
.page-hero h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.page-hero__lead{
  font-size:17px;
  color:var(--text-2);
  max-width:680px;
  line-height:1.9;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 34px;}
.hero__stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.stat{
  flex:1 1 150px;
  min-width:140px;
  padding:16px 18px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-2);
}
.stat b{
  display:block;
  font-size:26px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--primary);
  line-height:1.2;
}
.stat span{font-size:13px;color:var(--text-3);}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  border-radius:999px;
  padding:6px 14px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.03em;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(255,255,255,.04);
}
.badge--primary{color:var(--primary);border-color:rgba(34,224,214,.4);background:rgba(34,224,214,.1);}
.badge--reward{color:var(--reward);border-color:rgba(255,181,71,.4);background:rgba(255,181,71,.1);}
.badge--soft{color:var(--text-2);}
.badge i{font-size:11px;}

/* ============ 通用板块 ============ */
.section{
  padding:96px 0;
  position:relative;
  z-index:2;
}
.section--tight{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.2em;
  color:var(--primary);
  font-weight:700;
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(23px,3vw,33px);
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{font-size:15.5px;color:var(--text-2);margin:0;}

/* ============ 瀑布网格 ============ */
.waterfall{
  column-count:3;
  column-gap:24px;
}
.wf-card{
  break-inside:avoid;
  margin:0 0 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.wf-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,224,214,.5);
  box-shadow:0 22px 46px rgba(2,6,18,.62),0 0 0 1px rgba(34,224,214,.18);
}
.wf-card__media{position:relative;overflow:hidden;}
.wf-card__media img{
  width:100%;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.wf-card:hover .wf-card__media img{transform:scale(1.06);}
.h-short img{height:158px;}
.h-mid img{height:210px;}
.h-tall img{height:268px;}
.wf-card__media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.05) 30%,rgba(7,11,22,.72) 100%);
}
.wf-card__chip{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
}
.wf-card__body{padding:22px;}
.wf-card__body h3{font-size:18px;margin-bottom:10px;}
.wf-card__body p{font-size:14.5px;margin:0 0 14px;}
.wf-card__foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--text-3);
}
.wf-card__link{
  color:var(--primary);
  font-weight:700;
  font-size:13.5px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.wf-card__link:hover{gap:10px;}
.mini-list{margin:0 0 14px;}
.mini-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-2);
  margin-bottom:8px;
}
.mini-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 10px rgba(34,224,214,.6);
}

/* ============ 表格 ============ */
.table-wrap{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:760px;font-size:14.5px;}
.data-table thead th{
  text-align:left;
  padding:18px 20px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  font-weight:700;
  background:rgba(255,255,255,.05);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.data-table tbody td{
  padding:18px 20px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:top;
}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr:hover td{background:rgba(34,224,214,.045);color:var(--text-1);}
.data-table td strong{color:var(--text-1);font-weight:700;}
.data-table td .badge{white-space:nowrap;}
.table-note{
  margin:16px 0 0;
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 标签云 ============ */
.tagcloud{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:28px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
  box-shadow:var(--shadow-1);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  font-size:13.5px;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(255,255,255,.035);
  transition:all .22s var(--ease);
}
.tag:hover{
  color:#04201f;
  background:linear-gradient(135deg,var(--primary),#5fd8c6);
  border-color:transparent;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(34,224,214,.3);
}
.tag--lg{font-size:15px;padding:11px 22px;}
.tag--accent:hover{background:linear-gradient(135deg,var(--accent),#a57cf8);color:#120a28;}
.tag--reward:hover{background:linear-gradient(135deg,var(--reward),#ffcf85);color:#2a1a03;}
.tag i{font-size:12px;opacity:.85;}

/* ============ 自检清单 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.check-item{
  display:flex;
  gap:16px;
  padding:22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.check-item:hover{border-color:rgba(34,224,214,.45);transform:translateY(-3px);box-shadow:var(--shadow-1);}
.check-item__icon{
  flex:0 0 40px;
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  color:var(--primary);
  background:rgba(34,224,214,.1);
  border:1px solid rgba(34,224,214,.28);
  font-size:15px;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;margin:0;}

/* ============ FAQ ============ */
.faq-list.accordion{
  background:transparent;
  border:0;
}
.faq-list .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-list .accordion-item:hover{border-color:rgba(34,224,214,.4);}
.faq-list .accordion-item.is-active{
  border-color:rgba(34,224,214,.55);
  box-shadow:var(--shadow-1),0 0 0 1px rgba(34,224,214,.16);
}
.faq-list .accordion-title{
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  font-size:16.5px;
  font-weight:700;
  color:var(--text-1);
  border:0;
  background:transparent;
  position:relative;
}
.faq-list .accordion-title::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  opacity:0;
  transition:opacity .24s var(--ease);
  box-shadow:0 0 14px rgba(34,224,214,.7);
}
.faq-list .accordion-item.is-active .accordion-title::before{opacity:1;}
.faq-list .accordion-title:hover{color:var(--primary);background:rgba(34,224,214,.05);}
.faq-list .accordion-title::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  color:var(--text-3);
  margin-left:auto;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-list .accordion-item.is-active .accordion-title::after{transform:rotate(180deg);color:var(--primary);}
.faq-list .accordion-content{
  padding:0 24px 22px 24px;
  color:var(--text-2);
  font-size:15px;
  border:0;
  background:transparent;
}
.faq-list .accordion-content p:last-child{margin-bottom:0;}

/* ============ CTA 横幅 ============ */
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(34,224,214,.28);
  background:linear-gradient(115deg,rgba(34,224,214,.16),rgba(139,92,246,.16) 62%,rgba(7,11,22,.2));
  padding:48px 44px;
  box-shadow:var(--shadow-1);
}
.cta-banner::before{
  content:"";
  position:absolute;
  width:320px;height:320px;
  right:-90px;top:-140px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,214,.35),transparent 68%);
  pointer-events:none;
}
.cta-banner__inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-banner h2{font-size:clamp(21px,2.6vw,29px);margin-bottom:12px;max-width:620px;}
.cta-banner p{margin:0;font-size:15px;color:var(--text-2);max-width:600px;}
.cta-banner__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:2;
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,34,.9),rgba(7,11,22,.98));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:64px 0 42px;
}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:320px;margin:16px 0 0;}
.footer-col h3{
  font-size:14px;
  letter-spacing:.08em;
  color:var(--text-1);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.form-row{display:flex;gap:10px;flex-wrap:wrap;}
.form-row input{
  flex:1 1 150px;
  min-width:0;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:11px 14px;
  color:var(--text-1);
  font-size:14px;
  outline:none;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,224,214,.16);}
.form-note{font-size:12.5px;color:var(--text-3);margin:12px 0 0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding:20px 0 30px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:700;}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav__channels{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .waterfall{column-count:2;}
  .section{padding:76px 0;}
  .page-hero__inner{padding:20px 0 60px;}
  .cta-banner{padding:38px 30px;}
}

@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .breadcrumb{padding-top:94px;}
  .check-grid{grid-template-columns:1fr;}
  .topbar-cta{display:none;}
  .section{padding:58px 0;}
  .section-head{margin-bottom:32px;}
  .hero__stats{gap:12px;}
  .stat{flex:1 1 46%;}
  .faq-list .accordion-title{padding:17px 18px;font-size:15.5px;}
  .faq-list .accordion-content{padding:0 18px 18px;}
  .tagcloud{padding:20px;gap:10px;}
  .cta-banner__inner{flex-direction:column;align-items:flex-start;}
}

@media (max-width:600px){
  .waterfall{column-count:1;}
  .page-hero h1{font-size:26px;}
  .hero__actions .btn{width:100%;}
  .cta-banner{padding:30px 22px;border-radius:var(--radius);}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;}
  .btn{padding:13px 24px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg:#070b14;
  --bg-2:#0b1220;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --primary:#12e0d0;
  --primary-2:#0aa79c;
  --accent:#7a5cff;
  --reward:#ffb347;
  --text-1:#eef4f9;
  --text-2:#a6b4c4;
  --text-3:#6b7889;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.2);
  --radius-lg:16px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-1:0 22px 45px -22px rgba(0,0,0,.95);
  --shadow-2:0 10px 26px -14px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(18,224,208,.28), 0 14px 34px -14px rgba(18,224,208,.5);
  --container:1240px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(122,92,255,.16), transparent 62%),
    radial-gradient(900px 520px at 6% 4%, rgba(18,224,208,.12), transparent 60%),
    var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,opacity .22s ease;}
a:hover,a:focus{color:var(--primary);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(23px,2.4vw,32px);font-weight:800;letter-spacing:.2px;line-height:1.4;}
.section-head p{color:var(--text-2);margin-top:12px;font-size:15.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);background:rgba(18,224,208,.08);
  border:1px solid rgba(18,224,208,.26);border-radius:999px;
  padding:6px 14px;margin-bottom:16px;
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-lg{padding:15px 34px;font-size:17px;}
.btn-md{padding:12px 26px;font-size:15px;}
.btn-sm{padding:8px 18px;font-size:13.5px;}
.btn-primary{background:linear-gradient(115deg,var(--primary),var(--accent));color:#04131a;box-shadow:0 12px 30px -14px rgba(18,224,208,.7);}
.btn-primary:hover,.btn-primary:focus{color:#04131a;transform:translateY(-3px);box-shadow:0 18px 40px -14px rgba(18,224,208,.85);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-strong);color:var(--text-1);}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--primary);color:var(--primary);box-shadow:inset 0 0 22px rgba(18,224,208,.14);transform:translateY(-3px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;filter:saturate(.4);cursor:not-allowed;transform:none;box-shadow:none;}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:600;padding:4px 12px;border:1px solid transparent;}
.badge-primary{color:var(--primary);background:rgba(18,224,208,.1);border-color:rgba(18,224,208,.3);}
.badge-neutral{color:var(--text-2);background:rgba(255,255,255,.05);border-color:var(--line);}
.badge-reward{color:var(--reward);background:rgba(255,179,71,.1);border-color:rgba(255,179,71,.32);}
.tag{display:inline-block;font-size:12px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;padding:5px 13px;background:rgba(255,255,255,.03);}
.tag:hover{color:var(--primary);border-color:rgba(18,224,208,.45);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(7,11,20,.72),rgba(7,11,20,.42));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(7,11,20,.92);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;font-weight:800;font-size:18px;color:#04131a;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 8px 22px -10px rgba(18,224,208,.85);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:16.5px;font-weight:800;letter-spacing:.02em;}
.brand__text em{font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:.14em;}
.nav__channels{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;}
.nav__channels a{
  position:relative;font-size:14.5px;color:var(--text-2);padding:10px 13px;border-radius:10px;
}
.nav__channels a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav__channels a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav__channels a:hover::after{transform:scaleX(1);}
.nav__channels a.is-active{color:var(--text-1);}
.nav__channels a.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(18,224,208,.75);}
.nav__side{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(18,224,208,.45);transform:translateY(-2px);}
.nav-toggle{display:none;width:42px;height:40px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);}
.nav-toggle span{display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:var(--text-1);transition:transform .24s ease,opacity .24s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;border-top:1px solid var(--line);background:rgba(7,11,20,.97);
  padding:18px 20px 26px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:block;padding:13px 4px;font-size:15.5px;color:var(--text-2);border-bottom:1px solid var(--line);}
.nav-drawer a.is-active{color:var(--primary);}
.nav-drawer .btn{margin-top:18px;width:100%;}

/* 搜索浮层 */
.search-overlay{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(4,7,13,.78);backdrop-filter:blur(6px);
  padding:120px 20px 40px;
}
.search-overlay.is-open{display:block;}
.search-box{max-width:640px;margin:0 auto;}
.search-box form{display:flex;gap:10px;}
.search-box input{
  flex:1 1 auto;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);padding:14px 16px;color:var(--text-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,224,208,.18);}
.search-empty{margin-top:20px;color:var(--text-2);font-size:14px;text-align:center;}
.search-close{display:block;margin:22px auto 0;}

/* 面包屑 */
.crumb{padding:22px 0 0;font-size:13px;color:var(--text-3);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li::after{content:"/";margin-left:8px;color:var(--text-3);opacity:.6;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--text-2);}
.crumb .current{color:var(--primary);}

/* 页面 Hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(105deg,rgba(7,11,20,.94) 12%,rgba(7,11,20,.7) 58%,rgba(7,11,20,.9) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.85;
}
.page-hero__inner{position:relative;z-index:2;padding:74px 0 68px;max-width:880px;}
.page-hero h1{font-size:clamp(26px,3.4vw,44px);font-weight:800;line-height:1.32;letter-spacing:.2px;margin:14px 0 18px;}
.page-hero h1 span{background:linear-gradient(100deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero__lead{color:var(--text-2);font-size:16.5px;max-width:720px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.fact{
  border:1px solid var(--line);background:var(--panel);border-radius:var(--radius-md);
  padding:14px 20px;min-width:150px;box-shadow:var(--shadow-2);
}
.fact b{display:block;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--primary);font-variant-numeric:tabular-nums;}
.fact span{font-size:12.5px;color:var(--text-3);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* 状态条 */
.status-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);}
.status-bar__inner{display:flex;flex-wrap:wrap;align-items:center;gap:18px 34px;padding:16px 0;font-size:13.5px;color:var(--text-2);}
.status-bar__inner strong{color:var(--text-1);}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(18,224,208,.16);display:inline-block;margin-right:8px;}

/* 长文阅读 */
.read-layout{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:52px;align-items:start;}
.read-wrap{max-width:760px;}
.read-wrap p{color:var(--text-2);line-height:1.92;margin-bottom:1.2em;font-size:16.5px;}
.read-wrap h2{
  position:relative;padding-left:18px;margin:52px 0 20px;
  font-size:clamp(20px,2.1vw,26px);font-weight:800;line-height:1.45;
}
.read-wrap h2:first-child{margin-top:0;}
.read-wrap h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:1.05em;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  box-shadow:0 0 14px rgba(18,224,208,.6);
}
.read-wrap h3{font-size:18px;font-weight:700;margin:32px 0 12px;color:var(--text-1);}
.read-wrap strong{color:var(--text-1);}
.read-list{margin:6px 0 24px;}
.read-list li{
  position:relative;padding-left:20px;margin-bottom:11px;color:var(--text-2);line-height:1.85;
}
.read-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
}
.quote{
  border-left:3px solid var(--primary);background:rgba(18,224,208,.06);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:18px 22px;margin:26px 0;color:var(--text-1);font-size:15.5px;line-height:1.85;
}
.figure{margin:30px 0;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;background:var(--panel);}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);}

/* 侧栏 */
.side{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px;}
.side-card{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-2);}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;}
.side-card ol{counter-reset:s;}
.side-card ol li{counter-increment:s;position:relative;padding-left:28px;margin-bottom:11px;font-size:14px;color:var(--text-2);}
.side-card ol li::before{
  content:counter(s,decimal-leading-zero);position:absolute;left:0;top:2px;
  font-size:11.5px;font-weight:700;color:var(--primary);letter-spacing:.06em;
}
.side-card a:hover{color:var(--primary);}
.side-note{font-size:13px;color:var(--text-3);line-height:1.8;}

/* 表格 */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel);margin:26px 0;}
table.data{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px;}
table.data th,table.data td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);}
table.data thead th{
  background:rgba(255,255,255,.05);color:var(--text-1);font-weight:700;font-size:13.5px;
  letter-spacing:.04em;white-space:nowrap;
}
table.data tbody tr:last-child td{border-bottom:0;}
table.data tbody tr:hover{background:rgba(18,224,208,.05);}
table.data td{color:var(--text-2);}

/* 时间轴 */
.timeline{position:relative;margin:30px 0;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(122,92,255,.55),rgba(255,255,255,.08));
}
.timeline__item{position:relative;padding:0 0 26px 8px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
  content:"";position:absolute;left:-26px;top:7px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-2);border:2px solid var(--primary);box-shadow:0 0 0 4px rgba(18,224,208,.12);
}
.timeline__item.is-reward::before{border-color:var(--reward);box-shadow:0 0 0 4px rgba(255,179,71,.14);}
.timeline__item h3{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.timeline__item p{color:var(--text-2);font-size:14.5px;line-height:1.8;margin:0;}
.timeline__time{font-size:12px;color:var(--text-3);letter-spacing:.08em;display:block;margin-bottom:4px;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{margin:0;background:transparent;border:0;}
.accordion .accordion-item{
  border:1px solid var(--line);background:var(--panel);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-2);
  transition:border-color .22s ease,transform .22s ease;
}
.accordion .accordion-item:hover{border-color:rgba(18,224,208,.4);transform:translateY(-2px);}
.accordion .accordion-title{
  display:block;position:relative;padding:18px 56px 18px 24px;
  font-size:16px;font-weight:700;color:var(--text-1);background:transparent;border:0;
  line-height:1.6;
}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  font-size:16px;font-weight:700;color:var(--primary);
  border:1px solid rgba(18,224,208,.35);background:rgba(18,224,208,.07);
  transition:transform .24s ease,background-color .24s ease;
}
.accordion .accordion-item.is-active{border-color:rgba(18,224,208,.5);}
.accordion .accordion-item.is-active .accordion-title::before{content:"–";background:rgba(18,224,208,.18);}
.accordion .accordion-item.is-active .accordion-title{color:var(--primary);}
.accordion .accordion-title:hover{color:var(--primary);}
.accordion .accordion-content{
  border:0;background:transparent;color:var(--text-2);
  padding:0 24px 20px;font-size:15px;line-height:1.88;
}
.accordion .accordion-content p{margin-bottom:10px;}
.accordion .accordion-content p:last-child{margin-bottom:0;}
.no-js .accordion .accordion-content{display:block !important;}

/* 相关分类卡 */
.grid-cards{margin-top:8px;}
.grid-cards .cell{margin-bottom:24px;}
.cat-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);
  box-shadow:var(--shadow-2);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(18,224,208,.5);box-shadow:var(--glow);}
.cat-card__media{position:relative;overflow:hidden;}
.cat-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.cat-card:hover .cat-card__media img{transform:scale(1.05);}
.cat-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 40%,rgba(7,11,20,.78));
}
.cat-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.cat-card__body h3{font-size:17px;font-weight:700;line-height:1.5;}
.cat-card__body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.cat-card__link{margin-top:auto;font-size:13.5px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:7px;}

/* CTA 横幅 */
.cta-banner{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid rgba(18,224,208,.3);
  background:linear-gradient(115deg,rgba(18,224,208,.14),rgba(122,92,255,.16)),rgba(11,18,32,.92);
  padding:44px 40px;display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;
  box-shadow:var(--shadow-1);
}
.cta-banner::before{
  content:"";position:absolute;right:-70px;top:-70px;width:250px;height:250px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,224,208,.28),transparent 68%);
}
.cta-banner__text{position:relative;z-index:2;max-width:600px;}
.cta-banner__text h2{font-size:clamp(20px,2.2vw,27px);font-weight:800;margin-bottom:10px;}
.cta-banner__text p{color:var(--text-2);font-size:15px;}
.cta-banner__actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(0,0,0,.3));margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;padding:64px 0 44px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px;line-height:1.85;}
.footer-col h3{font-size:14.5px;font-weight:700;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.form-row{display:flex;gap:10px;}
.form-row input{
  flex:1 1 auto;min-width:0;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);padding:11px 14px;font-size:14px;color:var(--text-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,224,208,.16);}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 26px;
  justify-content:space-between;font-size:13px;color:var(--text-3);
}
.footer-bottom strong{color:var(--text-2);font-weight:600;}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  .btn:hover,.cat-card:hover{transform:none;}
}

/* 响应式 */
@media (max-width:1024px){
  .read-layout{grid-template-columns:1fr;gap:40px;}
  .side{position:static;flex-direction:row;flex-wrap:wrap;}
  .side > *{flex:1 1 280px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 36px;}
}
@media (max-width:900px){
  .nav__channels{display:none;}
  .nav-toggle{display:block;}
  .nav__side .btn{display:none;}
}
@media (max-width:768px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .page-hero__inner{padding:52px 0 50px;}
  .hero-facts{gap:12px;}
  .fact{flex:1 1 calc(50% - 12px);min-width:0;padding:12px 16px;}
  .cta-banner{padding:32px 24px;}
  .cta-banner__actions{width:100%;}
  .cta-banner__actions .btn{flex:1 1 100%;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .brand__text em{display:none;}
  .read-wrap p{font-size:16px;}
  .accordion .accordion-title{padding:16px 50px 16px 18px;font-size:15px;}
  .accordion .accordion-content{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-actions .btn{flex:1 1 100%;}
}