/* roulang page: index */
:root{
  --bg-deep:#0D0A1C;
  --bg-panel:#171233;
  --bg-elev:#1F1840;
  --bg-light:#F5F3FF;
  --line:rgba(255,255,255,.08);
  --line-dark:rgba(26,20,48,.1);
  --brand:#7B5CFF;
  --brand-d:#5B3BE0;
  --gold:#FFB020;
  --mint:#2BE0A8;
  --hot:#FF4D6D;
  --t1:#F2EFFF;
  --t2:#B3AAD6;
  --t3:#7B73A3;
  --t-dark:#1A1430;
  --t-dark2:#4A4468;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-1:0 12px 32px rgba(11,8,28,.55);
  --sh-brand:0 0 0 1px rgba(123,92,255,.35), 0 10px 30px rgba(123,92,255,.22);
  --font-title:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--t1);
  font-family:var(--font-title);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
p{margin:0 0 1.15em;color:var(--t2)}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:900;line-height:1.25;letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,button{font:inherit}
::selection{background:rgba(123,92,255,.4);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:575px){.container{padding:0 16px}}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;min-height:48px;transition:all .22s ease;
  white-space:nowrap;
}
.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;box-shadow:0 10px 26px rgba(91,59,224,.35)}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--sh-brand)}
.btn--primary:active{transform:translateY(0);filter:brightness(.98)}
.btn--ghost{background:transparent;border-color:rgba(123,92,255,.55);color:#C9BDFF}
.btn--ghost:hover{background:rgba(123,92,255,.14);color:#fff;transform:translateY(-2px)}
.btn--sm{padding:10px 20px;font-size:14px;min-height:42px}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-d);transition:all .2s}
.text-link span{transition:transform .2s}
.text-link:hover span{transform:translateX(4px)}
.section--dark .text-link,.cta .text-link{color:#B7A7FF}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;line-height:1.7;white-space:nowrap;
}
.badge--cat{background:rgba(123,92,255,.14);color:#A797FF}
.badge--gold{background:rgba(255,176,32,.15);color:var(--gold)}
.badge--hot{background:rgba(255,77,109,.15);color:var(--hot)}
.badge--mint{background:rgba(43,224,168,.15);color:var(--mint)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,28,.74);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(13,10,28,.95);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-top__inner{display:flex;align-items:center;gap:20px;height:76px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.logo__mark{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(91,59,224,.4);
}
.logo__mark svg{width:22px;height:22px}
.logo__text{font-size:17px;font-weight:900;letter-spacing:.01em;color:var(--t1);white-space:nowrap}
.logo__text em{font-style:normal;color:var(--brand)}
.search{
  flex:1 1 46%;max-width:640px;height:52px;display:flex;align-items:center;gap:10px;
  padding:0 6px 0 18px;border-radius:999px;
  background:var(--bg-panel);border:1px solid var(--line);
  transition:border-color .22s,box-shadow .22s,background .22s;
}
.search:hover{border-color:rgba(123,92,255,.45)}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(123,92,255,.18)}
.search svg{width:20px;height:20px;flex:0 0 auto;color:var(--t3)}
.search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:0;
  color:var(--t1);font-size:15px;
}
.search input::placeholder{color:var(--t3)}
.search button{
  flex:0 0 auto;border:0;border-radius:999px;padding:0 24px;height:40px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;
  font-weight:700;font-size:14px;transition:filter .2s,transform .2s;
}
.search button:hover{filter:brightness(1.1)}
.search button:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{
  width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:var(--bg-panel);color:var(--t1);display:none;place-items:center;
}
.menu-toggle:hover{border-color:rgba(123,92,255,.5);color:var(--brand)}
.header-nav{border-top:1px solid var(--line)}
.nav-scroll{
  display:flex;align-items:center;gap:10px;overflow-x:auto;
  padding:12px 24px;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-pill{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--t2);white-space:nowrap;transition:all .2s;
}
.nav-pill:hover{color:#C9BDFF;border-color:rgba(123,92,255,.55);background:rgba(123,92,255,.08)}
.nav-pill.is-active{
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  border-color:transparent;color:#fff;box-shadow:var(--sh-brand);
}
.nav-pill:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
@media (max-width:1023px){
  .menu-toggle{display:grid}
  .header-actions .btn{display:none}
  .search{max-width:none}
  .nav-scroll{padding:10px 16px}
}
@media (max-width:767px){
  .header-top__inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:12px}
  .logo{flex:1 1 100%}
  .search{flex:1 1 100%;height:46px;order:3;padding-left:14px}
  .search button{padding:0 18px;height:36px}
  .logo__text{font-size:16px}
}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(13,10,28,.72);opacity:0;pointer-events:none;transition:opacity .3s;z-index:70}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);z-index:80;
  background:var(--bg-deep);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  padding:24px 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__title{font-size:16px;font-weight:900}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--bg-panel);color:var(--t1);display:grid;place-items:center}
.drawer__close:hover{color:var(--brand);border-color:rgba(123,92,255,.5)}
.drawer__search{display:flex;height:46px;border-radius:999px;background:var(--bg-panel);border:1px solid var(--line);padding:0 6px 0 14px;align-items:center;gap:8px;margin-bottom:22px}
.drawer__search input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:var(--t1);height:100%;font-size:14px}
.drawer__search button{border:0;border-radius:999px;height:36px;padding:0 16px;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;font-size:13px;font-weight:700}
.drawer__list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.drawer__list a{padding:13px 16px;border-radius:14px;border:1px solid var(--line);color:var(--t2);font-size:15px;transition:all .2s}
.drawer__list a:hover{color:#fff;border-color:rgba(123,92,255,.55);background:rgba(123,92,255,.1)}
.drawer__list a.is-active{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;border-color:transparent}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:84px 0 96px;
  background-image:linear-gradient(100deg,rgba(13,10,28,.97) 0%,rgba(13,10,28,.82) 44%,rgba(13,10,28,.48) 100%),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 70% 40%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 40%,#000 0%,transparent 72%);
}
.hero__glow{
  position:absolute;width:520px;height:520px;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(123,92,255,.34),transparent 66%);
  top:-160px;right:-80px;
}
.hero__grid{position:relative;z-index:2;display:grid;gap:48px;grid-template-columns:1fr;align-items:center}
.hero__kicker{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;
  background:rgba(123,92,255,.14);border:1px solid rgba(123,92,255,.35);
  font-size:13px;color:#C9BDFF;letter-spacing:.04em;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4.6vw,50px);line-height:1.22;letter-spacing:.01em;
  margin-bottom:20px;max-width:17em;
}
.hero h1 span{color:#A392FF}
.hero__sub{font-size:17px;line-height:1.85;color:var(--t2);max-width:34em;margin-bottom:30px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px}
.hero__badges .badge{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--t2);font-size:12px;padding:6px 14px}
.hero-card{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  border:1px solid rgba(123,92,255,.4);box-shadow:var(--sh-1),0 0 40px rgba(123,92,255,.18);
  transform:rotate(-3deg);animation:floaty 6s ease-in-out infinite;
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card__tag{
  position:absolute;left:18px;top:18px;padding:6px 14px;border-radius:999px;
  background:rgba(13,10,28,.78);border:1px solid rgba(123,92,255,.5);
  font-size:12px;color:#C9BDFF;letter-spacing:.04em;
}
.hero-card__body{
  position:absolute;left:0;right:0;bottom:0;padding:22px;
  background:linear-gradient(to top,rgba(13,10,28,.95),rgba(13,10,28,.1));
}
.hero-card__body h3{font-size:18px;margin-bottom:6px}
.hero-card__body p{font-size:13px;color:var(--t2);margin:0}
@keyframes floaty{0%,100%{transform:rotate(-3deg) translateY(0)}50%{transform:rotate(-3deg) translateY(-12px)}}
@media (min-width:1024px){.hero__grid{grid-template-columns:1.05fr .95fr;gap:56px}}
@media (max-width:767px){
  .hero{padding:52px 0 60px}
  .hero-card{transform:none;animation:none}
  .hero__cta .btn{flex:1 1 100%}
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative}
.section--dark{background:var(--bg-deep)}
.section--panel{background:var(--bg-panel)}
.section--light{background:var(--bg-light);color:var(--t-dark)}
.section--white{background:#fff;color:var(--t-dark)}
.section--light p,.section--white p{color:var(--t-dark2)}
.section--light h2,.section--white h2,.section--light h3,.section--white h3{color:var(--t-dark)}
.sec-head{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:44px}
.sec-kicker{
  display:inline-block;font-size:13px;letter-spacing:.14em;font-weight:700;
  color:var(--brand);margin-bottom:12px;text-transform:uppercase;
}
.section--light .sec-kicker,.section--white .sec-kicker{color:var(--brand-d)}
.sec-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;max-width:20em}
.sec-sub{font-size:16px;max-width:44em;margin:0}
@media (max-width:767px){.section{padding:56px 0}.sec-head{margin-bottom:30px}}

/* ---------- 流程四步 ---------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr;position:relative}
.step{
  background:#fff;border:1px solid var(--line-dark);border-radius:var(--r-m);
  padding:26px 24px;transition:transform .25s,box-shadow .25s,border-color .25s;
  position:relative;z-index:2;
}
.step:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,20,48,.12);border-color:rgba(123,92,255,.45)}
.step__num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(123,92,255,.12);color:var(--brand-d);
  font-family:var(--font-mono);font-size:16px;font-weight:700;margin-bottom:18px;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{font-size:14px;line-height:1.8;margin:0}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){
  .steps{grid-template-columns:repeat(4,1fr);gap:22px}
  .steps::before{
    content:"";position:absolute;top:49px;left:60px;right:60px;height:1px;
    background:linear-gradient(90deg,rgba(123,92,255,0),rgba(123,92,255,.55),rgba(123,92,255,0));
    z-index:1;
  }
}

/* ---------- 权益卡片 ---------- */
.rewards{display:grid;gap:24px;grid-template-columns:1fr}
.reward{
  background:var(--bg-panel);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.reward:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.45);box-shadow:var(--sh-brand)}
.reward__thumb{position:relative;overflow:hidden}
.reward__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s}
.reward:hover .reward__thumb img{transform:scale(1.04)}
.reward__thumb .badge{position:absolute;left:16px;top:16px;background:rgba(13,10,28,.8)}
.reward__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.reward__body h3{font-size:19px}
.reward__body p{font-size:14px;line-height:1.8;margin:0;color:var(--t2)}
.reward__foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.reward--big .reward__thumb img{aspect-ratio:16/11}
@media (min-width:768px){.rewards{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){
  .rewards{grid-template-columns:1.3fr 1fr;grid-auto-rows:1fr}
  .reward--big{grid-row:span 2}
  .reward--big .reward__thumb img{aspect-ratio:16/9;height:100%}
}

/* ---------- 进度 ---------- */
.progress-wrap{background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--r-l);padding:32px}
.progress-top{display:flex;flex-wrap:wrap;gap:12px;align-items:baseline;justify-content:space-between;margin-bottom:18px}
.progress-top strong{font-family:var(--font-mono);font-size:26px;color:var(--mint)}
.progress-top span{font-size:14px;color:var(--t2)}
.progress-track{height:12px;border-radius:999px;background:var(--bg-elev);overflow:hidden;position:relative}
.progress-fill{
  height:100%;width:68%;border-radius:999px;position:relative;
  background:linear-gradient(90deg,var(--brand),#9C7BFF);
}
.progress-fill::after{
  content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);
  width:14px;height:14px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 14px rgba(43,224,168,.85);
}
.nodes{display:grid;gap:16px;grid-template-columns:1fr;margin-top:30px}
.node{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:14px;background:var(--bg-elev);border:1px solid var(--line)}
.node__dot{width:22px;height:22px;border-radius:50%;flex:0 0 auto;margin-top:4px;display:grid;place-items:center}
.node__dot--done{background:var(--mint)}
.node__dot--done svg{width:13px;height:13px;color:#0D0A1C}
.node__dot--now{background:var(--brand);position:relative}
.node__dot--now::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid rgba(123,92,255,.7);animation:pulse 1.8s ease-out infinite}
.node__dot--wait{background:var(--t3)}
@keyframes pulse{0%{transform:scale(.85);opacity:.9}100%{transform:scale(1.5);opacity:0}}
.node__txt strong{display:block;font-size:15px;margin-bottom:2px}
.node__txt span{font-size:13px;color:var(--t3);font-family:var(--font-mono)}
@media (min-width:768px){.nodes{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.nodes{grid-template-columns:repeat(4,1fr)}}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;gap:24px;grid-template-columns:1fr}
.news-card{
  background:#fff;border:1px solid var(--line-dark);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,20,48,.12);border-color:rgba(123,92,255,.45)}
.news-card__thumb{display:block;overflow:hidden}
.news-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s}
.news-card:hover .news-card__thumb img{transform:scale(1.04)}
.news-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t3)}
.news-card__title{font-size:19px;line-height:1.5}
.news-card__title a{transition:color .2s}
.news-card__title a:hover{color:var(--brand-d)}
.news-card__desc{font-size:14px;color:var(--t-dark2);margin:0;line-height:1.8}
.news-card__body .text-link{margin-top:auto}
.news-card--lead .news-card__title{font-size:23px}
.news-card--lead .news-card__thumb img{aspect-ratio:16/10}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){
  .news-grid{grid-template-columns:repeat(3,1fr)}
  .news-card--lead{grid-row:span 2}
  .news-card--lead .news-card__thumb img{aspect-ratio:16/9;height:100%}
}
.empty-state{
  border:1px dashed rgba(123,92,255,.5);border-radius:18px;padding:52px 24px;text-align:center;
  background:rgba(123,92,255,.05);
}
.empty-state p{font-size:15px;color:var(--t-dark2);margin-bottom:18px}

/* ---------- 反馈 ---------- */
.reviews{display:grid;gap:22px;grid-template-columns:1fr}
.review{background:#fff;border:1px solid var(--line-dark);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:16px}
.review__score{display:flex;align-items:center;gap:12px}
.score-bar{flex:1;height:8px;border-radius:999px;background:rgba(26,20,48,.08);overflow:hidden}
.score-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold),#FFD37A)}
.review__score b{font-family:var(--font-mono);font-size:15px;color:var(--t-dark)}
.review p{font-size:15px;line-height:1.85;margin:0}
.review__who{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:13px;color:var(--t3)}
.avatar{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-d));display:grid;place-items:center;color:#fff;font-weight:700;font-size:14px}
@media (min-width:768px){.reviews{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.reviews{grid-template-columns:repeat(3,1fr)}}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line-dark)}
.faq-item{border-bottom:1px solid var(--line-dark)}
.faq-q{
  width:100%;background:none;border:0;padding:22px 0;display:flex;align-items:center;
  justify-content:space-between;gap:18px;text-align:left;font-size:17px;font-weight:700;
  color:var(--t-dark);transition:color .2s;
}
.faq-q:hover{color:var(--brand-d)}
.faq-q svg{width:20px;height:20px;flex:0 0 auto;color:var(--brand-d);transition:transform .3s}
.faq-item.is-open .faq-q svg{transform:rotate(180deg)}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 4px 22px 0;font-size:15px;line-height:1.85;margin:0;color:var(--t-dark2)}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;border-radius:var(--r-l);overflow:hidden;padding:56px 44px;
  background-image:linear-gradient(120deg,rgba(91,59,224,.94),rgba(123,92,255,.72)),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--sh-1);
}
.cta-block h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:14px;color:#fff;max-width:22em}
.cta-block p{color:rgba(255,255,255,.86);max-width:40em;font-size:16px;margin-bottom:26px}
.cta-block .btn--primary{background:#fff;color:var(--brand-d);box-shadow:0 12px 30px rgba(13,10,28,.3)}
.cta-block .btn--primary:hover{filter:brightness(1.06);box-shadow:0 16px 34px rgba(13,10,28,.4)}
@media (max-width:767px){.cta-block{padding:38px 22px}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-deep);padding-top:1px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(123,92,255,.85),transparent);
}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;padding:64px 0 48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--t2);max-width:30em}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--t1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--t2);transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:#B7A7FF;transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{color:var(--t3);transition:color .2s}
.footer-bottom a:hover{color:#B7A7FF}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(123,92,255,.55);background:rgba(23,18,51,.92);color:#B7A7FF;
  display:grid;place-items:center;z-index:65;opacity:0;pointer-events:none;
  transition:opacity .25s,transform .25s,background .25s;
}
.to-top.is-visible{opacity:1;pointer-events:auto}
.to-top:hover{background:rgba(123,92,255,.25);transform:translateY(-2px)}
.to-top:focus-visible{outline:2px solid var(--mint);outline-offset:2px}

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

/* roulang page: category1 */
:root{
  --bg-deep:#0D0A1C;
  --bg-panel:#171233;
  --bg-elev:#1F1840;
  --bg-light:#F5F3FF;
  --line:rgba(255,255,255,.08);
  --brand:#7B5CFF;
  --brand-deep:#5B3BE0;
  --gold:#FFB020;
  --mint:#2BE0A8;
  --hot:#FF4D6D;
  --t1:#F2EFFF;
  --t2:#B3AAD6;
  --t3:#7B73A3;
  --t-dark:#1A1430;
  --t-dark-2:#4A4468;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-1:0 12px 32px rgba(11,8,28,.55);
  --sh-brand:0 0 0 1px rgba(123,92,255,.35),0 10px 30px rgba(123,92,255,.22);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-deep);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.25;letter-spacing:.01em;color:inherit;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){
  .container,.grid-container{max-width:1320px;}
}
::selection{background:rgba(123,92,255,.45);color:#fff;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 28px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;box-shadow:0 8px 22px rgba(123,92,255,.28);
}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--sh-brand);color:#fff;}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{
  border:1px solid rgba(123,92,255,.6);color:#C9BCFF;background:rgba(123,92,255,.06);
}
.btn--ghost:hover{background:rgba(123,92,255,.16);color:#fff;border-color:var(--brand);}
.btn--sm{min-height:40px;padding:8px 20px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:#C9BCFF;
}
.text-link span{transition:transform .2s ease;}
.text-link:hover span{transform:translateX(4px);color:var(--mint);}
.text-link:hover{color:var(--mint);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,28,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{
  background:rgba(13,10,28,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-top{
  display:flex;align-items:center;gap:24px;
  padding:14px 0;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo__mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 6px 18px rgba(123,92,255,.35);
}
.logo__mark svg{width:22px;height:22px;}
.logo__text{
  font-size:18px;font-weight:900;color:#fff;letter-spacing:.01em;line-height:1.1;
}
.logo__text em{font-style:normal;color:#C9BCFF;font-size:13px;font-weight:700;margin-left:4px;}
.search-form{
  position:relative;flex:1 1 auto;max-width:560px;margin:0 auto;
  display:flex;align-items:center;
  height:52px;padding:0 6px 0 18px;
  background:var(--bg-panel);
  border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-form:hover{border-color:rgba(123,92,255,.5);}
.search-form:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(123,92,255,.18);
}
.search-form svg{width:20px;height:20px;flex-shrink:0;stroke:var(--t3);}
.search-form input{
  flex:1 1 auto;height:100%;border:0;background:transparent;color:var(--t1);
  font-size:15px;padding:0 12px;min-width:0;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;}
.search-form .btn--primary{min-height:40px;padding:8px 22px;font-size:14px;}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{
  display:none;width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);color:var(--t2);
  place-items:center;background:var(--bg-panel);
}
.menu-toggle svg{width:22px;height:22px;}

.header-nav{border-top:1px solid var(--line);}
.nav-scroll{
  display:flex;gap:10px;align-items:center;
  padding-top:10px;padding-bottom:10px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;
  font-size:14px;font-weight:700;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:all .2s ease;
}
.nav-pill:hover{color:#fff;border-color:rgba(123,92,255,.6);}
.nav-pill.is-active{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;border-color:transparent;box-shadow:0 6px 18px rgba(123,92,255,.3);
}

/* ---------- 抽屉 ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(13,10,28,.7);
  opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:70;
}
.overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:80;
  background:var(--bg-panel);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  padding:24px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer h3{font-size:16px;color:var(--t2);margin-bottom:12px;font-weight:700;}
.drawer .search-form{height:46px;max-width:none;margin:0 0 22px;}
.drawer-nav{display:flex;flex-direction:column;gap:10px;margin-bottom:24px;}
.drawer-nav a{
  padding:12px 16px;border-radius:var(--r-m);border:1px solid var(--line);
  font-size:15px;font-weight:700;color:var(--t2);background:var(--bg-elev);
}
.drawer-nav a.is-active{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;border-color:transparent;}
.drawer-close{
  position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--t2);
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:320px;display:flex;align-items:flex-end;
  padding:48px 0 40px;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(13,10,28,.96) 0%,rgba(13,10,28,.8) 48%,rgba(13,10,28,.55) 100%);
}
.page-hero__inner{position:relative;z-index:2;width:100%;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:18px;
}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb span[aria-hidden]{color:var(--t3);}
.breadcrumb .current{color:var(--t1);font-weight:700;}
.page-hero h1{
  font-size:clamp(28px,4.4vw,48px);
  max-width:900px;
  margin-bottom:16px;
}
.page-hero__lead{
  font-size:17px;color:var(--t2);max-width:720px;margin:0;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags .badge{
  font-size:12px;letter-spacing:.04em;padding:6px 14px;border-radius:999px;
  background:rgba(123,92,255,.14);color:#C9BCFF;border:1px solid rgba(123,92,255,.32);
}
.hero-tags .badge--gold{background:rgba(255,176,32,.14);color:#FFD27A;border-color:rgba(255,176,32,.35);}
.hero-tags .badge--mint{background:rgba(43,224,168,.12);color:#8CF0CE;border-color:rgba(43,224,168,.32);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--dark{background:var(--bg-deep);}
.section--panel{background:var(--bg-deep);}
.section--light{background:var(--bg-light);color:var(--t-dark);}
.section--light .section-title{color:var(--t-dark);}
.section--light .section-lead{color:var(--t-dark-2);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:#C9BCFF;
  text-transform:uppercase;margin-bottom:14px;
}
.section--light .section-kicker{color:var(--brand-deep);}
.section-kicker::before{
  content:"";width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--mint));
}
.section-title{font-size:clamp(24px,3vw,34px);margin-bottom:16px;}
.section-lead{font-size:16.5px;color:var(--t2);max-width:700px;margin:0;}

/* ---------- 概览 + 锚点 ---------- */
.intro-wrap{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:40px;align-items:start;
}
.intro-text p{color:var(--t-dark-2);font-size:16.5px;line-height:1.9;}
.intro-figure{
  border-radius:var(--r-l);overflow:hidden;border:1px solid rgba(26,20,48,.1);
  box-shadow:0 22px 50px rgba(26,20,48,.18);
}
.intro-figure img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.intro-figure figcaption{font-size:13px;color:var(--t-dark-2);padding:12px 16px;background:#fff;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px;}
.stat{
  background:#fff;border:1px solid rgba(26,20,48,.08);border-radius:var(--r-m);
  padding:16px 18px;
}
.stat b{display:block;font-family:var(--font-mono);font-size:26px;color:var(--brand-deep);line-height:1.2;}
.stat span{font-size:13px;color:var(--t-dark-2);}

.anchor-bar{
  position:sticky;top:0;z-index:30;
  background:rgba(245,243,255,.92);backdrop-filter:blur(8px);
  border-top:1px solid rgba(26,20,48,.07);
  border-bottom:1px solid rgba(26,20,48,.07);
  margin-top:48px;
}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding:14px 0;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-chip{
  flex:0 0 auto;font-size:14px;font-weight:700;color:var(--t-dark-2);
  padding:8px 18px;border-radius:999px;background:#fff;
  border:1px solid rgba(26,20,48,.1);transition:all .2s ease;
}
.anchor-chip:hover{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-deep));border-color:transparent;}

/* ---------- 目录分组 ---------- */
.group{margin-bottom:56px;scroll-margin-top:120px;}
.group:last-child{margin-bottom:0;}
.group__head{
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
  padding-bottom:16px;margin-bottom:8px;border-bottom:1px solid var(--line);
}
.group__index{
  font-family:var(--font-mono);font-size:14px;color:var(--mint);letter-spacing:.1em;
}
.group__title{font-size:22px;color:var(--t1);}
.group__note{font-size:14px;color:var(--t3);}
.entry-list{display:flex;flex-direction:column;}
.entry{
  display:grid;grid-template-columns:56px minmax(0,1fr) 40px;
  align-items:center;gap:18px;
  padding:18px 20px;border-radius:var(--r-m);
  border-bottom:1px solid var(--line);
  transition:background .22s ease,transform .22s ease;
}
.entry:last-child{border-bottom-color:transparent;}
.entry:hover{background:var(--bg-panel);}
.entry:hover .entry__arrow{transform:translateX(6px);color:var(--brand);}
.entry__num{
  font-family:var(--font-mono);font-size:15px;color:var(--t3);
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.entry__title{font-size:16.5px;font-weight:700;color:var(--t1);display:block;margin-bottom:4px;}
.entry__desc{font-size:14.5px;color:var(--t2);line-height:1.75;margin:0;}
.entry__arrow{
  display:grid;place-items:center;color:var(--t3);
  transition:transform .22s ease,color .22s ease;
}
.entry__arrow svg{width:20px;height:20px;}

/* ---------- 填写要点卡片 ---------- */
.card-grid{display:grid;gap:22px;}
.card-grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.card-grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.card{
  background:#fff;border:1px solid rgba(26,20,48,.08);border-radius:18px;
  padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,20,48,.14);border-color:rgba(123,92,255,.35);}
.card__badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  letter-spacing:.04em;padding:5px 12px;border-radius:999px;
  background:rgba(123,92,255,.12);color:var(--brand-deep);margin-bottom:14px;
}
.card__badge--gold{background:rgba(255,176,32,.16);color:#8A5A00;}
.card__badge--mint{background:rgba(43,224,168,.16);color:#0A6B4F;}
.card h3{font-size:19px;color:var(--t-dark);margin-bottom:10px;}
.card p{font-size:15px;color:var(--t-dark-2);line-height:1.8;}
.card__list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.card__list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--t-dark-2);
}
.card__list li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;
  border-radius:3px;background:linear-gradient(135deg,var(--brand),var(--mint));
}

/* ---------- 四步流程（暗色） ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;
}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(123,92,255,0),rgba(123,92,255,.6),rgba(43,224,168,.5),rgba(123,92,255,0));
}
.step{
  position:relative;background:var(--bg-panel);border:1px solid var(--line);
  border-radius:18px;padding:24px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.4);box-shadow:var(--sh-brand);}
.step__num{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:16px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 8px 20px rgba(123,92,255,.32);margin-bottom:16px;
}
.step h3{font-size:17px;color:var(--t1);margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--t2);line-height:1.8;margin:0;}

/* ---------- 对比/证据条 ---------- */
.compare{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;
}
.compare__col{
  border-radius:18px;padding:26px;border:1px solid var(--line);background:var(--bg-panel);
}
.compare__col--good{border-color:rgba(43,224,168,.35);background:linear-gradient(180deg,rgba(43,224,168,.08),rgba(23,18,51,.9));}
.compare__col--bad{border-color:rgba(255,77,109,.28);}
.compare__col h3{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.compare__col h3 i{width:10px;height:10px;border-radius:50%;display:block;}
.compare__col--good h3 i{background:var(--mint);}
.compare__col--bad h3 i{background:var(--hot);}
.compare__col li{
  position:relative;padding-left:22px;font-size:14.8px;color:var(--t2);margin-bottom:12px;line-height:1.8;
}
.compare__col li:last-child{margin-bottom:0;}
.compare__col li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:2px;border-radius:2px;background:var(--brand);
}

/* ---------- FAQ ---------- */
.faq{max-width:880px;}
.faq__item{border-bottom:1px solid rgba(26,20,48,.1);}
.faq__item:first-child{border-top:1px solid rgba(26,20,48,.1);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;font-size:17px;font-weight:700;color:var(--t-dark);text-align:left;
}
.faq__q svg{width:22px;height:22px;flex-shrink:0;color:var(--brand-deep);transition:transform .28s ease;}
.faq__item.is-open .faq__q svg{transform:rotate(180deg);}
.faq__a{
  max-height:0;overflow:hidden;transition:max-height .32s ease,padding .3s ease;
}
.faq__item.is-open .faq__a{max-height:520px;padding-bottom:22px;}
.faq__a p{font-size:15px;line-height:1.85;color:var(--t-dark-2);margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  padding:56px 48px;border:1px solid rgba(123,92,255,.3);
  background:linear-gradient(120deg,rgba(123,92,255,.28),rgba(13,10,28,.9)),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--sh-1);
}
.cta-band__inner{position:relative;z-index:2;max-width:720px;}
.cta-band h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px;}
.cta-band p{color:var(--t2);font-size:16.5px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-meta{margin-top:20px;font-size:13px;color:var(--t3);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-deep);position:relative;
  padding:72px 0 28px;color:var(--t2);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(123,92,255,0),rgba(123,92,255,.75),rgba(43,224,168,.5),rgba(123,92,255,0));
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:40px;padding-bottom:44px;
}
.footer-brand p{font-size:14.5px;color:var(--t3);line-height:1.85;margin-top:18px;max-width:340px;}
.footer-brand .logo{margin-bottom:2px;}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:11px;}
.footer-col a{
  font-size:14.5px;color:var(--t2);display:inline-block;transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(-2px);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--t3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:48px;height:48px;border-radius:50%;
  border:1px solid rgba(123,92,255,.55);background:rgba(23,18,51,.9);
  display:grid;place-items:center;color:#C9BCFF;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;border-color:transparent;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .header-top{flex-wrap:wrap;gap:14px;}
  .search-form{order:3;max-width:100%;flex:1 1 100%;}
  .header-actions{display:none;}
  .menu-toggle{display:grid;margin-left:auto;}
  .intro-wrap{grid-template-columns:1fr;gap:28px;}
  .card-grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .page-hero{min-height:280px;padding:36px 0 32px;}
  .page-hero__lead{font-size:15.5px;}
  .entry{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:16px 12px;}
  .entry__arrow{display:none;}
  .entry__num{width:34px;height:34px;font-size:13.5px;border-radius:10px;}
  .card-grid--3,.card-grid--2,.compare{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;gap:12px;}
  .cta-band{padding:36px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .logo__text{font-size:16px;}
  .logo__text em{display:block;margin-left:0;font-size:12px;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --bg-deep:#0D0A1C;
  --bg-panel:#171233;
  --bg-elev:#1F1840;
  --bg-light:#F5F3FF;
  --line:rgba(255,255,255,.08);
  --brand:#7B5CFF;
  --brand-deep:#5B3BE0;
  --gold:#FFB020;
  --mint:#2BE0A8;
  --hot:#FF4D6D;
  --t1:#F2EFFF;
  --t2:#B3AAD6;
  --t3:#7B73A3;
  --t-dark:#1A1430;
  --t-dark-2:#4A4468;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-1:0 12px 32px rgba(11,8,28,.55);
  --sh-brand:0 0 0 1px rgba(123,92,255,.35),0 10px 30px rgba(123,92,255,.22);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-deep);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:inherit;margin:0;line-height:1.3;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
body.no-scroll{overflow:hidden}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:520px){.container{padding:0 16px}}

/* ============ 按钮 / 徽章 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:0 8px 22px rgba(123,92,255,.28)}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--sh-brand);color:#fff}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border-color:rgba(123,92,255,.55);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(123,92,255,.14);color:var(--brand-deep);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{min-height:38px;padding:8px 18px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em}
.badge--brand{background:rgba(123,92,255,.12);color:var(--brand-deep)}
.badge--gold{background:rgba(255,176,32,.18);color:#8A5A00}
.badge--hot{background:rgba(255,77,109,.14);color:#C0264A}
.tag{display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;border:1px solid rgba(123,92,255,.28);background:rgba(123,92,255,.07);color:var(--brand-deep);font-size:13px;font-weight:600}
.tag:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(13,10,28,.88);border-bottom:1px solid transparent;transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease}
.site-header.is-stuck{background:rgba(13,10,28,.97);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-top__inner{display:flex;align-items:center;gap:18px;min-height:78px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:0 6px 18px rgba(123,92,255,.4)}
.logo__mark svg{width:20px;height:20px}
.logo__text{font-size:17px;font-weight:900;letter-spacing:.02em;color:var(--t1);white-space:nowrap}
.logo__text em{font-style:normal;color:var(--brand)}
.search-box{
  position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:540px;height:52px;
  border-radius:999px;background:var(--bg-panel);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:hover{border-color:rgba(123,92,255,.45)}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(123,92,255,.18)}
.search-box__icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--t3);pointer-events:none}
.search-box input{
  flex:1 1 auto;height:100%;width:100%;border:0;background:transparent;color:var(--t1);
  padding:0 118px 0 48px;font-size:15px;outline:none;border-radius:999px;
}
.search-box input::placeholder{color:var(--t3)}
.search-box__btn{
  position:absolute;right:5px;top:5px;bottom:5px;padding:0 22px;border:0;border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;font-weight:700;font-size:14px;cursor:pointer;
  transition:filter .18s ease,transform .18s ease;
}
.search-box__btn:hover{filter:brightness(1.08)}
.search-box__btn:active{transform:scale(.98)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.menu-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:var(--bg-panel);color:var(--t1);cursor:pointer;place-items:center}
.menu-toggle svg{width:22px;height:22px}
.menu-toggle:hover{border-color:rgba(123,92,255,.5);color:var(--brand)}
.header-nav{border-top:1px solid var(--line);background:rgba(13,10,28,.6)}
.nav-scroll{display:flex;gap:10px;padding-top:12px;padding-bottom:12px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-pill{
  display:inline-flex;align-items:center;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:14.5px;font-weight:600;white-space:nowrap;
}
.nav-pill:hover{color:var(--brand);border-color:rgba(123,92,255,.45);background:rgba(123,92,255,.08)}
.nav-pill.is-active{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(123,92,255,.3)}

/* ============ 抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(13,10,28,.7);opacity:0;visibility:hidden;z-index:110;transition:opacity .28s ease,visibility .28s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(324px,88vw);z-index:120;background:var(--bg-panel);
  border-left:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(104%);transition:transform .28s ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__head strong{font-size:15px;color:var(--t1);letter-spacing:.04em}
.drawer__close{width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:var(--bg-elev);color:var(--t1);cursor:pointer;display:grid;place-items:center}
.drawer__close:hover{border-color:var(--brand);color:var(--brand)}
.drawer__close svg{width:20px;height:20px}
.drawer-nav{display:grid;gap:8px}
.drawer-nav a{padding:13px 15px;border-radius:13px;font-size:15px;color:var(--t2);border:1px solid transparent;min-height:44px;display:flex;align-items:center}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--bg-elev);border-color:var(--line);color:var(--t1)}
.drawer__foot{margin-top:auto;display:grid;gap:10px}
.drawer__foot .btn{width:100%}

/* ============ 文章主体区（浅色阅读） ============ */
.article-main{background:var(--bg-light);color:var(--t-dark)}
.article-layout{display:flex;flex-wrap:wrap;margin:0 -12px;padding-top:26px;padding-bottom:84px}
.article-layout>.cell{padding:0 12px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;font-size:13.5px;line-height:1.6;color:var(--t-dark-2)}
.breadcrumb a{color:var(--t-dark-2)}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb .sep{color:#A9A2C7}
.breadcrumb .current{color:var(--t-dark);font-weight:700}
.article-card{
  background:#fff;border:1px solid rgba(26,20,48,.06);border-radius:var(--r-l);
  padding:clamp(22px,3.4vw,44px);box-shadow:0 20px 48px rgba(26,20,48,.08);
}
.article-title{font-size:clamp(26px,3.2vw,42px);font-weight:900;line-height:1.25;letter-spacing:.01em;color:var(--t-dark)}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:18px;
  padding-bottom:20px;border-bottom:1px solid rgba(26,20,48,.08);font-size:13.5px;color:var(--t-dark-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6C0E0}
.article-body{margin-top:28px;font-size:17px;line-height:1.9;color:#2A2450;max-width:760px}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;margin:2.2em 0 .8em;padding-left:14px;font-size:clamp(21px,2.4vw,26px);font-weight:800;color:var(--t-dark)}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--brand-deep))}
.article-body h3{margin:1.8em 0 .6em;font-size:19px;font-weight:700;color:var(--t-dark)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.55em}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;border-left:4px solid var(--brand);border-radius:0 14px 14px 0;background:#F1EDFF;color:var(--t-dark-2);font-style:normal}
.article-body img{border-radius:14px;margin:1.2em auto;width:100%}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{border:1px solid rgba(26,20,48,.1);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:#EFEBFF;color:var(--t-dark);font-weight:700}
.article-body tbody tr:nth-child(even){background:#FAF9FF}
.article-body code{font-family:var(--mono);font-size:.92em;background:#EFEBFF;padding:2px 6px;border-radius:6px;color:var(--brand-deep)}
.article-body pre{background:var(--bg-deep);color:var(--t1);padding:16px 18px;border-radius:14px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:none;color:inherit;padding:0}
.empty-state{display:grid;gap:14px;justify-items:center;text-align:center;padding:56px 20px;border:1px dashed rgba(123,92,255,.45);border-radius:var(--r-l);background:#FBFAFF}
.empty-state h2{font-size:22px;font-weight:800;color:var(--t-dark)}
.empty-state p{color:var(--t-dark-2);font-size:15px;max-width:420px}
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:22px;border-top:1px dashed rgba(26,20,48,.14)}
.article-tags__label{font-size:13.5px;color:var(--t-dark-2)}

/* ============ 通用板块 / 卡片 ============ */
.section-block{margin-top:46px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:900;color:var(--t-dark)}
.section-head a{font-size:14px;font-weight:700;color:var(--brand-deep)}
.section-head a:hover{color:var(--brand)}
.rel-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(208px,1fr))}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid rgba(26,20,48,.07);border-radius:18px;overflow:hidden}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.45);box-shadow:0 18px 38px rgba(26,20,48,.14)}
.rel-card__cover{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-card__body{padding:16px 18px 20px;display:grid;gap:10px}
.rel-card__title{font-size:16px;font-weight:700;line-height:1.55;color:var(--t-dark)}
.rel-card__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--t-dark-2)}
.post-nav{display:grid;gap:16px;grid-template-columns:1fr 1fr;margin-top:36px}
.post-nav__item{background:#fff;border:1px solid rgba(26,20,48,.08);border-radius:18px;padding:18px 20px;display:grid;gap:8px}
.post-nav__item:hover{border-color:rgba(123,92,255,.45);transform:translateY(-2px);box-shadow:0 14px 30px rgba(26,20,48,.1)}
.post-nav__label{font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--brand-deep)}
.post-nav__title{font-size:15px;line-height:1.6;color:var(--t-dark)}
.post-nav__item--next{text-align:right}
.article-foot{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 侧栏 ============ */
.sidebar__inner{display:grid;gap:20px;position:sticky;top:104px}
.side-card{background:#fff;border:1px solid rgba(26,20,48,.07);border-radius:var(--r-m);padding:22px}
.side-card__title{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-size:16px;font-weight:800;color:var(--t-dark)}
.side-card__title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--brand)}
.toc li+li{margin-top:6px}
.toc a{display:flex;align-items:center;gap:9px;padding:6px 0;font-size:14.5px;color:var(--t-dark-2)}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(123,92,255,.5);flex:0 0 auto}
.toc a:hover{color:var(--brand-deep);transform:translateX(3px)}
.side-post{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed rgba(26,20,48,.1)}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-post img{width:86px;height:58px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.side-post span{font-size:14px;line-height:1.6;color:var(--t-dark-2)}
.side-post:hover span{color:var(--brand-deep)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 84px;background:var(--bg-light)}
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-l);padding:clamp(28px,4vw,52px);
  background-image:linear-gradient(120deg,rgba(13,10,28,.93),rgba(91,59,224,.84)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  box-shadow:0 24px 56px rgba(26,20,48,.22);
}
.cta-card__text{max-width:620px}
.cta-card h2{font-size:clamp(22px,2.8vw,32px);font-weight:900;color:#fff;line-height:1.3}
.cta-card p{margin-top:12px;font-size:15.5px;color:rgba(242,239,255,.84)}
.cta-card__actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-card .btn--ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.cta-card .btn--ghost:hover{background:rgba(255,255,255,.16);color:#fff}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--bg-deep);color:var(--t2)}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(123,92,255,.65),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:64px 0 44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--t2);max-width:360px}
.footer-col h4{margin-bottom:16px;font-size:15px;font-weight:800;color:var(--t1)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{display:inline-block;font-size:14px;color:var(--t2)}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line);font-size:13px;color:var(--t3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom nav a{font-size:13px;color:var(--t3)}
.footer-bottom nav a:hover{color:var(--brand)}

/* ============ 回到顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;border:1px solid rgba(123,92,255,.6);
  background:rgba(13,10,28,.9);color:var(--t1);box-shadow:var(--sh-1);
}
.back-top svg{width:20px;height:20px}
.back-top:hover{background:var(--brand);border-color:var(--brand);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1023.98px){
  .header-top__inner{flex-wrap:wrap;min-height:0;padding:14px 0;gap:12px}
  .search-box{order:3;flex:1 0 100%;max-width:none;height:48px}
  .header-actions .btn{display:none}
  .menu-toggle{display:grid}
  .sidebar__inner{position:static;margin-top:32px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:52px 0 36px}
  .article-layout{padding-bottom:64px}
}
@media (max-width:767.98px){
  .article-body{font-size:16.5px;line-height:1.88}
  .article-title{font-size:clamp(24px,6vw,30px)}
  .search-box{height:46px}
  .search-box input{padding:0 104px 0 44px;font-size:14.5px}
  .search-box__btn{padding:0 16px;font-size:13.5px}
  .cta-band{padding-bottom:64px}
  .cta-card__actions{width:100%}
  .cta-card__actions .btn{flex:1 1 auto}
}
@media (max-width:600px){
  .post-nav{grid-template-columns:1fr}
  .post-nav__item--next{text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:16px;bottom:16px;width:42px;height:42px}
  .article-card{border-radius:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-deep:#0D0A1C;
  --bg-panel:#171233;
  --bg-elev:#1F1840;
  --bg-light:#F5F3FF;
  --bg-white:#FFFFFF;
  --line:rgba(255,255,255,.08);
  --brand:#7B5CFF;
  --brand-deep:#5B3BE0;
  --brand-soft:rgba(123,92,255,.12);
  --gold:#FFB020;
  --mint:#2BE0A8;
  --hot:#FF4D6D;
  --t1:#F2EFFF;
  --t2:#B3AAD6;
  --t3:#7B73A3;
  --t-dark:#1A1430;
  --t-dark2:#4A4468;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-1:0 12px 32px rgba(11,8,28,.55);
  --sh-brand:0 0 0 1px rgba(123,92,255,.35),0 10px 30px rgba(123,92,255,.22);
  --font-head:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--t1);
  font-family:var(--font-head);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,transform .2s ease}
a:hover,a:focus{color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
button{font:inherit;font-family:var(--font-head);border:0;background:none;color:inherit;cursor:pointer}
input{font:inherit;font-family:var(--font-head)}
h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.28;letter-spacing:.01em;font-family:var(--font-head)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:520px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(13,10,28,.88);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(13,10,28,.98);box-shadow:var(--sh-1)}
.header-top__inner{display:flex;align-items:center;gap:20px;min-height:78px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  box-shadow:var(--sh-brand);
}
.logo__mark svg{width:22px;height:22px}
.logo__text{display:flex;flex-direction:column;font-size:19px;font-weight:900;line-height:1.15;white-space:nowrap}
.logo__text em{font-style:normal;font-size:11px;font-weight:600;color:var(--t2);letter-spacing:.16em}
.header-search{
  flex:1 1 44%;max-width:560px;height:52px;display:flex;align-items:center;gap:10px;
  padding:0 6px 0 16px;border-radius:999px;background:var(--bg-panel);
  border:1px solid var(--line);transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.header-search:hover{border-color:rgba(123,92,255,.5)}
.header-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(123,92,255,.18)}
.header-search svg{width:20px;height:20px;flex:0 0 auto;stroke:var(--t3);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.header-search input{flex:1 1 auto;min-width:0;height:100%;background:none;border:0;color:var(--t1);font-size:15px}
.header-search input::placeholder{color:var(--t3)}
.header-search input:focus{outline:none}
.header-search button{
  flex:0 0 auto;height:40px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));transition:filter .2s ease,transform .2s ease;
}
.header-search button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-panel);place-items:center;transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:rgba(123,92,255,.55)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;margin:3px auto}
.header-nav{border-top:1px solid var(--line)}
.nav-scroll{display:flex;align-items:center;gap:10px;padding:10px 24px 14px;overflow-x:auto;scrollbar-width:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:40px;padding:9px 18px;
  border-radius:999px;border:1px solid var(--line);color:var(--t2);font-size:14px;font-weight:600;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.nav-pill:hover{color:var(--brand);border-color:rgba(123,92,255,.5);background:rgba(123,92,255,.08)}
.nav-pill.is-active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:var(--sh-brand);
}
.nav-pill.is-active:hover{color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,filter .2s ease,color .2s ease;
}
.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:var(--sh-brand)}
.btn--primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(123,92,255,.55);color:var(--brand);background:transparent}
.btn--ghost:hover{color:var(--brand);background:rgba(123,92,255,.12);transform:translateY(-2px)}
.btn--sm{min-height:40px;padding:10px 20px;font-size:14px}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--t3)}
.breadcrumb .current{color:var(--t1)}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background-color:var(--bg-deep);padding:76px 0 64px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.38;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,10,28,.96) 10%,rgba(13,10,28,.78) 52%,rgba(13,10,28,.42) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  padding:6px 14px;border-radius:999px;background:var(--brand-soft);border:1px solid rgba(123,92,255,.3);
}
.page-hero h1{font-size:clamp(28px,4vw,46px);line-height:1.24;margin-bottom:18px}
.page-hero .lead{font-size:17px;color:var(--t2);max-width:640px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--t2);
  padding:7px 14px;border-radius:999px;background:rgba(31,24,64,.85);border:1px solid var(--line);
}

/* ---------- 数据条 ---------- */
.stat-strip{padding:34px 0;background:var(--bg-panel);border-bottom:1px solid var(--line)}
.stat{padding:10px 0;display:flex;flex-direction:column;gap:2px}
.stat__num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand);line-height:1.1}
.stat__label{font-size:13px;color:var(--t2)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--light{background:var(--bg-light);color:var(--t-dark)}
.section--white{background:var(--bg-white);color:var(--t-dark)}
.section--light p,.section--white p{color:var(--t-dark2)}
.section-head{max-width:780px;margin-bottom:36px}
.section-head h2{font-size:clamp(23px,3vw,32px);margin-bottom:14px}
.section-head p{font-size:16px;color:var(--t2)}
.section--light .section-head p,.section--white .section-head p{color:var(--t-dark2)}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:100%}

/* ---------- 筛选 + 卡片墙 ---------- */
.filter-layout{display:grid;grid-template-columns:minmax(200px,222px) 1fr;gap:34px;align-items:start}
.filter-col{position:sticky;top:150px}
.filter-col__title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--t3);margin-bottom:14px}
.filter-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;min-height:44px;
  padding:12px 16px;margin-bottom:10px;border-radius:var(--r-s);border:1px solid var(--line);
  background:var(--bg-panel);color:var(--t2);font-size:14px;font-weight:600;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter-btn span{font-family:var(--font-num);font-size:12px;color:var(--t3)}
.filter-btn:hover{color:var(--t1);border-color:rgba(123,92,255,.5)}
.filter-btn.is-active{background:rgba(123,92,255,.18);border-color:rgba(123,92,255,.6);color:#fff}
.filter-btn.is-active span{color:rgba(255,255,255,.75)}
.filter-btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}

.card-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  display:flex;flex-direction:column;background:var(--bg-panel);border:1px solid var(--line);
  border-radius:18px;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.4);box-shadow:var(--sh-1)}
.card.is-hidden{display:none}
.card--wide{grid-column:span 2;flex-direction:row}
.card__media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card__media img{transform:scale(1.04)}
.card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,28,0) 45%,rgba(13,10,28,.55))}
.card--wide .card__media{flex:0 0 45%;aspect-ratio:auto;min-height:100%}
.card__body{display:flex;flex-direction:column;gap:12px;padding:24px;flex:1 1 auto}
.card__title{font-size:20px;line-height:1.4}
.card__title a:hover{color:var(--brand)}
.card__text{font-size:15px;color:var(--t2);margin:0}
.card__meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:auto;font-size:13px;color:var(--t3);font-family:var(--font-num)}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--brand-soft);color:#C4B4FF;border:1px solid rgba(123,92,255,.3);
}
.badge--gold{background:rgba(255,176,32,.14);color:var(--gold);border-color:rgba(255,176,32,.32)}
.badge--hot{background:rgba(255,77,109,.14);color:var(--hot);border-color:rgba(255,77,109,.32)}
.badge--mint{background:rgba(43,224,168,.14);color:var(--mint);border-color:rgba(43,224,168,.32)}

/* ---------- 评分条 ---------- */
.rate-list{display:grid;gap:4px}
.rate-row{padding:18px 0;border-bottom:1px solid rgba(26,20,48,.1)}
.rate-row:last-child{border-bottom:0}
.rate-row__top{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:10px}
.rate-row__name{font-size:16px;font-weight:700;color:var(--t-dark)}
.rate-row__val{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--brand-deep)}
.rate-track{height:10px;border-radius:999px;background:rgba(26,20,48,.08);overflow:hidden}
.rate-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-deep))}
.rate-note{margin-top:8px;font-size:13px;color:var(--t-dark2)}

/* ---------- 清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.check-item{
  display:flex;gap:14px;padding:22px;border-radius:var(--r-m);background:var(--bg-light);
  border:1px solid rgba(26,20,48,.08);
}
.check-item svg{width:22px;height:22px;flex:0 0 auto;stroke:var(--mint);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-top:4px}
.check-item h3{font-size:17px;margin-bottom:6px;color:var(--t-dark)}
.check-item p{font-size:14px;margin:0;color:var(--t-dark2)}

/* ---------- 自检三步 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step-card{
  padding:26px;border-radius:18px;background:var(--bg-panel);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.4)}
.step-card__num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;
  font-family:var(--font-num);font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--t2);margin:0}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid rgba(26,20,48,.1)}
.faq-item{border-bottom:1px solid rgba(26,20,48,.1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:44px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:700;color:var(--t-dark);
}
.faq-q:hover{color:var(--brand-deep)}
.faq-q svg{width:20px;height:20px;flex:0 0 auto;stroke:var(--brand-deep);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;transition:transform .28s ease}
.faq-item.is-open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{font-size:15px;line-height:1.8;color:var(--t-dark2);margin:0 0 22px;max-width:820px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-l);padding:56px;
  background-image:linear-gradient(115deg,rgba(91,59,224,.94),rgba(123,92,255,.7)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;box-shadow:var(--sh-1);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;color:#fff}
.cta-band p{max-width:640px;color:rgba(255,255,255,.86);margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn--ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-deep);padding:72px 0 28px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(123,92,255,.85),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--t2);max-width:330px;margin:0}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{display:inline-block;font-size:14px;color:var(--t2)}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,10,28,.7);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:95;
  background:var(--bg-panel);border-left:1px solid var(--line);padding:24px;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open .mobile-drawer{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:var(--t2)}
.drawer-search{display:flex;align-items:center;gap:10px;height:46px;padding:0 14px;border-radius:999px;background:var(--bg-elev);border:1px solid var(--line);margin-bottom:20px}
.drawer-search input{flex:1;min-width:0;background:none;border:0;color:var(--t1);font-size:14px}
.drawer-search input:focus{outline:none}
.drawer-links{display:grid;gap:10px;margin-bottom:24px}
.drawer-links a{display:flex;align-items:center;min-height:44px;padding:0 16px;border-radius:12px;border:1px solid var(--line);color:var(--t2);font-size:15px;font-weight:600}
.drawer-links a.is-active{background:rgba(123,92,255,.18);border-color:rgba(123,92,255,.55);color:#fff}
.drawer-links a:hover{color:var(--brand);border-color:rgba(123,92,255,.5)}
.drawer-cta{display:grid;gap:12px}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:var(--bg-panel);border:1px solid rgba(123,92,255,.55);
  color:var(--brand);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-brand)}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .filter-layout{grid-template-columns:1fr;gap:22px}
  .filter-col{position:static;display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .filter-col::-webkit-scrollbar{display:none}
  .filter-col__title{display:none}
  .filter-btn{width:auto;margin-bottom:0;white-space:nowrap}
  .card-wall{grid-template-columns:1fr}
  .card--wide{grid-column:auto;flex-direction:column}
  .card--wide .card__media{flex:0 0 auto;aspect-ratio:16/9;min-height:0}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .header-top__inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;gap:12px;min-height:auto}
  .header-search{order:3;flex:1 1 100%;max-width:none;height:46px}
  .header-search button{height:36px;padding:0 18px}
  .nav-toggle{display:grid}
  .cta-band{padding:38px 24px}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .page-hero{padding:56px 0 48px}
  .check-grid{grid-template-columns:1fr}
  .section-head--row{flex-direction:column;align-items:flex-start}
  .stat__num{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:560px){
  .header-actions .btn--sm:first-child{display:none}
  .card__body{padding:20px}
  .card__title{font-size:18px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .card:hover,.step-card:hover,.btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --bg-deep:#0D0A1C;
  --bg-panel:#171233;
  --bg-elev:#1F1840;
  --bg-light:#F5F3FF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#7B5CFF;
  --brand-deep:#5B3BE0;
  --gold:#FFB020;
  --mint:#2BE0A8;
  --hot:#FF4D6D;
  --t1:#F2EFFF;
  --t2:#B3AAD6;
  --t3:#7B73A3;
  --t-dark:#1A1430;
  --t-dark-2:#4A4468;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-1:0 12px 32px rgba(11,8,28,.55);
  --sh-brand:0 0 0 1px rgba(123,92,255,.35),0 10px 30px rgba(123,92,255,.22);
  --font-head:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","DIN Alternate","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-head);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-deep);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease;}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:.01em;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1440px){
  .container{max-width:1320px;}
}

/* ---------- 顶部 header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,10,28,.72);
  backdrop-filter:blur(10px);
  transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(13,10,28,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-main{
  display:flex;
  align-items:center;
  gap:20px;
  padding-top:14px;
  padding-bottom:12px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo__mark{
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--sh-brand);
}
.logo__mark svg{width:22px;height:22px;}
.logo__text{
  font-size:19px;
  font-weight:900;
  letter-spacing:.02em;
  color:var(--t1);
  white-space:nowrap;
}
.logo__text em{
  font-style:normal;
  color:var(--brand);
  margin-left:2px;
}
.search-box{
  flex:1 1 46%;
  max-width:620px;
  display:flex;
  align-items:center;
  height:52px;
  padding:0 6px 0 16px;
  border-radius:999px;
  background:var(--bg-panel);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box:hover{border-color:var(--line-strong);}
.search-box:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(123,92,255,.18);
  background:var(--bg-elev);
}
.search-box svg{width:20px;height:20px;flex:0 0 auto;color:var(--t3);}
.search-box input{
  flex:1 1 auto;
  height:100%;
  border:0;
  background:transparent;
  color:var(--t1);
  font-size:15px;
  padding:0 12px;
  outline:none;
}
.search-box input::placeholder{color:var(--t3);}
.search-box .btn-search{
  flex:0 0 auto;
  height:40px;
  padding:0 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  transition:filter .2s ease,transform .2s ease;
}
.search-box .btn-search:hover{filter:brightness(1.08);transform:translateY(-1px);}
.search-box .btn-search:active{transform:translateY(0);}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 30px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:filter .2s ease,transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 8px 22px rgba(91,59,224,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--sh-brand);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  color:var(--brand);
  border:1px solid rgba(123,92,255,.6);
  background:transparent;
}
.btn-ghost:hover{
  background:rgba(123,92,255,.12);
  color:var(--brand);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:700;font-size:15px;
}
.btn-link span{transition:transform .2s ease;}
.btn-link:hover span{transform:translateX(4px);}

.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--bg-panel);
  place-items:center;
}
.hamburger svg{width:22px;height:22px;color:var(--t1);}

/* ---------- 分类导航 ---------- */
.header-nav{
  border-top:1px solid var(--line);
}
.nav-scroll{
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:10px;
  padding-bottom:12px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:7px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--t2);
  border:1px solid var(--line);
  background:transparent;
  transition:all .2s ease;
}
.nav-pill:hover{
  color:var(--brand);
  border-color:rgba(123,92,255,.5);
  background:rgba(123,92,255,.08);
}
.nav-pill.is-active{
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-color:transparent;
  box-shadow:0 6px 18px rgba(91,59,224,.32);
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(13,10,28,.7);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(340px,86vw);
  height:100%;
  background:var(--bg-panel);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .3s ease;
  z-index:90;
  padding:22px 20px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:20px;color:var(--t2);
}
.drawer .search-box{max-width:none;flex:none;width:100%;height:46px;margin-bottom:18px;}
.drawer__list{display:flex;flex-direction:column;gap:8px;margin-bottom:22px;}
.drawer__list a{
  padding:12px 16px;
  border-radius:var(--r-s);
  border:1px solid var(--line);
  font-size:15px;
  color:var(--t2);
}
.drawer__list a.is-active{
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-color:transparent;
}
.drawer__list a:hover{color:var(--brand);border-color:rgba(123,92,255,.5);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 60px;
  min-height:310px;
  display:flex;
  align-items:center;
  background-image:
    linear-gradient(100deg,rgba(13,10,28,.96) 0%,rgba(13,10,28,.86) 42%,rgba(13,10,28,.6) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--t3);}
.breadcrumb .current{color:var(--t1);font-weight:600;}
.page-hero h1{
  font-size:clamp(28px,4.2vw,50px);
  font-weight:900;
  line-height:1.22;
  max-width:760px;
  margin-bottom:16px;
}
.page-hero h1 .hl{
  color:var(--brand);
}
.page-hero .hero-lead{
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  margin-bottom:24px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  font-weight:600;
  color:var(--t2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.tag--brand{color:var(--brand);background:rgba(123,92,255,.12);border-color:rgba(123,92,255,.35);}
.tag--gold{color:var(--gold);background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.32);}
.tag--mint{color:var(--mint);background:rgba(43,224,168,.12);border-color:rgba(43,224,168,.32);}
.tag--hot{color:var(--hot);background:rgba(255,77,109,.12);border-color:rgba(255,77,109,.32);}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section--dark{background:var(--bg-deep);}
.section--panel{background:var(--bg-panel);}
.section--light{background:var(--bg-light);color:var(--t-dark);}
.section--light p{color:var(--t-dark-2);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:10px;
}
.section--light .section-head .eyebrow{color:var(--brand-deep);}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:900;
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--t2);max-width:700px;}
.section--light .section-head p{color:var(--t-dark-2);}

/* ---------- 概况卡 ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.overview-card{
  background:#fff;
  border:1px solid rgba(26,20,48,.08);
  border-radius:18px;
  padding:24px;
  box-shadow:0 10px 26px rgba(26,20,48,.06);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.overview-card:hover{
  transform:translateY(-4px);
  border-color:rgba(123,92,255,.35);
  box-shadow:0 18px 38px rgba(91,59,224,.14);
}
.overview-card .num{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--brand-deep);
  margin-bottom:12px;
  display:block;
}
.overview-card h3{font-size:19px;margin-bottom:10px;color:var(--t-dark);}
.overview-card p{font-size:15px;line-height:1.8;color:var(--t-dark-2);}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:15px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,rgba(123,92,255,.95),rgba(123,92,255,.18) 78%,rgba(123,92,255,0));
}
.tl-item{
  position:relative;
  padding:0 0 32px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item .dot{
  position:absolute;
  left:-34px;
  top:4px;
  width:32px;height:32px;
  border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 0 4px rgba(123,92,255,.16);
}
.tl-card{
  display:grid;
  grid-template-columns:1fr 220px;
  gap:22px;
  align-items:center;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px 24px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(123,92,255,.4);
  box-shadow:var(--sh-brand);
}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{font-size:15px;color:var(--t2);line-height:1.8;margin-bottom:12px;}
.tl-card .tl-meta{display:flex;flex-wrap:wrap;gap:8px;}
.tl-thumb{
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  background:var(--bg-elev);
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}

/* ---------- 对比清单 ---------- */
.compare{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  background:var(--bg-panel);
}
.compare-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:20px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:var(--bg-elev);}
.compare-head{
  background:var(--bg-elev);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--t3);
  font-weight:700;
  text-transform:uppercase;
}
.compare-row .symptom{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--t1);
  font-weight:600;
}
.compare-row .symptom .marker{
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:9px;
  border-radius:50%;
  background:var(--hot);
}
.compare-row .handle{
  font-size:15px;
  color:var(--t2);
  line-height:1.8;
}
.compare-row .handle strong{color:var(--mint);font-weight:700;}

/* ---------- FAQ ---------- */
.faq-list{
  border-top:1px solid rgba(26,20,48,.12);
}
.faq-item{
  border-bottom:1px solid rgba(26,20,48,.12);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:17px;
  font-weight:700;
  color:var(--t-dark);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-deep);}
.faq-item summary .chev{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(91,59,224,.35);
  color:var(--brand-deep);
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item summary .chev svg{width:14px;height:14px;}
.faq-item[open] summary .chev{transform:rotate(180deg);background:rgba(123,92,255,.12);}
.faq-item .faq-body{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--t-dark-2);
  max-width:860px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  padding:52px 44px;
  background-image:
    linear-gradient(115deg,rgba(91,59,224,.92) 0%,rgba(123,92,255,.72) 46%,rgba(13,10,28,.86) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border:1px solid rgba(123,92,255,.4);
  box-shadow:var(--sh-1);
}
.cta-band h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:14px;
  max-width:640px;
}
.cta-band p{color:rgba(255,255,255,.84);max-width:620px;margin-bottom:26px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-deep);
  padding:64px 0 26px;
  position:relative;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(123,92,255,0),rgba(123,92,255,.8),rgba(123,92,255,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:38px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t2);line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--t1);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--t2);
  display:inline-block;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:var(--t3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom nav a{color:var(--t3);}
.footer-bottom nav a:hover{color:var(--brand);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:46px;height:46px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-panel);
  border:1px solid rgba(123,92,255,.55);
  color:var(--brand);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);background:var(--bg-elev);}
.to-top svg{width:18px;height:18px;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .overview-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .timeline{padding-left:30px;}
}
@media (max-width:900px){
  .header-main{flex-wrap:wrap;gap:12px;}
  .search-box{order:3;flex:1 1 100%;max-width:none;height:46px;}
  .hamburger{display:grid;}
  .header-actions .btn{display:none;}
  .tl-card{grid-template-columns:1fr;gap:16px;}
  .tl-thumb{order:-1;max-width:100%;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:52px 0;}
  .page-hero{padding:40px 0 44px;min-height:260px;}
  .overview-grid{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:16px 18px;}
  .compare-head{display:none;}
  .compare-row .handle{padding-left:18px;}
  .cta-band{padding:34px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .logo__text{font-size:16px;}
  .btn{padding:12px 22px;font-size:14px;}
  .timeline{padding-left:26px;}
  .timeline::before{left:11px;}
  .tl-item .dot{left:-26px;width:26px;height:26px;font-size:11px;}
  .tl-card{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}