/* roulang page: index */
:root{
  --c-primary:#6C3BF4;
  --c-primary-dark:#4A22C4;
  --c-primary-soft:#EFE9FE;
  --c-secondary:#00B39A;
  --c-accent:#FF8A3D;
  --c-ink:#1B1630;
  --c-ink-2:#5D5878;
  --c-ink-3:#8E8AA6;
  --c-bg:#F6F4FB;
  --c-surface:#FFFFFF;
  --c-dark:#17122B;
  --c-line:#E6E2F3;
  --c-error:#D6455B;
  --shadow-1:0 2px 8px rgba(27,22,48,.06);
  --shadow-2:0 12px 32px rgba(27,22,48,.10);
  --r-card:16px;
  --r-input:12px;
  --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:.02em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--c-ink);}
p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
:focus-visible{outline:3px solid rgba(108,59,244,.4);outline-offset:2px;border-radius:8px;}
body.nav-locked{overflow:hidden;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-container{max-width:1248px;padding-left:24px;padding-right:24px;}
@media (min-width:1200px){.shell{padding:0 32px;}.grid-container{padding-left:32px;padding-right:32px;}}

.section{padding:96px 0;background:var(--c-bg);}
.section--light{background:var(--c-surface);}
.section--dark{background:var(--c-dark);color:#CFC9E8;}
.section--dark h2,.section--dark h3{color:#fff;}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:639px){.section{padding:56px 0;}}

.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(24px,3.2vw,38px);line-height:1.3;}
.sec-head p{margin-top:12px;max-width:640px;color:var(--c-ink-2);font-size:16px;}
.sec-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.section--dark .sec-head p{color:#B9B3D4;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(108,59,244,.24);}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:#F0762A;color:#fff;transform:translateY(-2px);}
.btn--accent:active{transform:translateY(1px);}
.btn--sm{min-height:42px;padding:0 20px;font-size:14px;}
.btn.is-loading{opacity:.72;pointer-events:none;}

.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary);white-space:nowrap;}
.link-more:hover{color:var(--c-secondary);text-decoration:underline;text-underline-offset:3px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:1.8;color:var(--c-ink-2);margin-bottom:8px;}
.check-list li:last-child{margin-bottom:0;}
.check-list i{color:var(--c-secondary);font-size:13px;margin-top:7px;}
.section--dark .check-list li{color:#CFC9E8;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:16px;z-index:60;}
.nav-pill{
  position:relative;
  width:min(1200px,calc(100% - 32px));
  margin:0 auto;
  height:72px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 20px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-1);
  transition:height .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{height:64px;background:#fff;box-shadow:var(--shadow-2);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));color:#fff;font-size:17px;font-weight:800;line-height:1;}
.brand__text{font-size:17px;font-weight:800;color:var(--c-ink);white-space:nowrap;letter-spacing:.01em;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu a{display:inline-flex;align-items:center;height:44px;padding:0 18px;border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--c-ink-2);}
.nav-menu a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-menu__cta{display:none;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;border-radius:var(--r-pill);background:var(--c-primary-soft);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:1023px){
  .nav-pill{gap:10px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-menu{
    display:none;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:12px;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--shadow-2);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{height:48px;border-radius:14px;font-size:16px;padding:0 16px;}
  .nav-menu__cta{display:block;margin-top:6px;}
  .nav-menu__cta .btn{width:100%;}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 104px;background:var(--c-bg);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(108,59,244,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(108,59,244,.05) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.7),transparent 62%);
  mask-image:linear-gradient(90deg,rgba(0,0,0,.7),transparent 62%);
}
.hero::after{
  content:"";position:absolute;top:-120px;right:-80px;width:640px;height:640px;pointer-events:none;
  background:radial-gradient(circle at center,rgba(108,59,244,.14),transparent 68%);
}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px;align-items:center;}
.hero__copy{max-width:620px;}
.hero__badge{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-primary);font-size:13px;font-weight:600;box-shadow:var(--shadow-1);}
.hero__badge i{color:var(--c-accent);}
.hero h1{margin-top:22px;font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.24;letter-spacing:.01em;}
.hero__sub{margin-top:18px;font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--c-ink-2);max-width:32em;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__trust{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:30px;}
.hero__trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2);}
.hero__trust i{color:var(--c-secondary);font-size:13px;}
.hero__visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-2);}
.hero__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero__visual::after{content:"";position:absolute;inset:0;background:rgba(108,59,244,.08);}
.hero__note{margin-top:16px;font-size:13px;color:var(--c-ink-3);}
@media (max-width:1023px){
  .hero{padding:48px 0 88px;}
  .hero__inner{grid-template-columns:1fr;gap:36px;}
  .hero__copy{max-width:none;}
}
@media (max-width:639px){
  .hero{padding:36px 0 76px;}
  .hero__actions .btn{flex:1 1 100%;}
}

/* ---------- 信任条 ---------- */
.trust-bar{background:var(--c-bg);padding-bottom:8px;}
.trust-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  margin-top:-60px;position:relative;z-index:3;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:28px 24px;
}
.trust-item{display:flex;align-items:flex-start;gap:12px;}
.trust-item i{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--c-primary-soft);color:var(--c-primary);font-size:16px;}
.trust-item h3{font-size:16px;font-weight:600;line-height:1.5;}
.trust-item p{font-size:13px;color:var(--c-ink-3);line-height:1.7;margin-top:2px;}
@media (max-width:1023px){.trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:-48px;}}
@media (max-width:639px){.trust-grid{grid-template-columns:1fr;margin-top:-40px;padding:22px 18px;gap:16px;}}

/* ---------- 权益阶梯 ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;align-items:stretch;}
.ladder-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.ladder-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;background:var(--c-line);}
.ladder-card--2{background:var(--c-primary-soft);border-color:#DDD3FB;}
.ladder-card--2::before{background:var(--c-primary);}
.ladder-card--3{border:1.5px solid transparent;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,var(--c-primary),var(--c-secondary)) border-box;}
.ladder-card--3::before{background:linear-gradient(180deg,var(--c-primary),var(--c-secondary));}
.ladder-card--4{background:var(--c-primary);border-color:var(--c-primary);color:#EFE9FE;}
.ladder-card--4::before{background:rgba(255,255,255,.5);}
.ladder-card--4 h3,.ladder-card--4 .ladder-card__step{color:#fff;}
.ladder-card--4 .check-list li{color:#E4DCFD;}
.ladder-card--4 .check-list i{color:#fff;}
.ladder-card__step{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-primary);margin-bottom:8px;}
.ladder-card h3{font-size:19px;font-weight:700;margin-bottom:16px;}
.ladder-card__foot{margin-top:auto;padding-top:20px;}
.ladder-card__foot .btn{width:100%;}
.state-text{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-ink-3);}
.ladder-card--4 .state-text{color:#E4DCFD;}
.tag-limit{position:absolute;top:16px;right:16px;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-accent);color:#fff;font-size:11px;font-weight:600;}
@media (max-width:1023px){.ladder-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:639px){.ladder-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 方案对比 ---------- */
.plan-table{
  display:block;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.plan-head,.plan-row,.plan-foot{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;}
.plan-head{background:#FBFAFE;border-bottom:1px solid var(--c-line);}
.plan-head>div{display:flex;align-items:center;min-height:64px;padding:0 20px;font-size:15px;font-weight:700;}
.plan-col.is-featured{position:relative;background:var(--c-primary-soft);color:var(--c-primary);}
.plan-col em{font-style:normal;display:inline-flex;align-items:center;height:22px;padding:0 9px;margin-left:8px;border-radius:var(--r-pill);background:var(--c-accent);color:#fff;font-size:11px;font-weight:600;}
.plan-row{border-bottom:1px solid var(--c-line);}
.plan-row:last-of-type{border-bottom:0;}
.plan-row:nth-of-type(odd){background:#FBFAFE;}
.plan-row>div{display:flex;align-items:center;min-height:56px;padding:0 20px;font-size:15px;}
.plan-dim{font-weight:600;color:var(--c-ink);}
.plan-val{justify-content:center;}
.plan-val i{font-size:15px;}
.plan-val .fa-check{color:var(--c-primary);}
.plan-val .fa-minus{color:var(--c-ink-3);}
.plan-foot>div{display:flex;align-items:center;padding:18px 20px;background:#fff;}
.plan-foot{background:#fff;border-top:1px solid var(--c-line);}
.plan-mobile{display:none;}
@media (max-width:767px){
  .plan-table{display:none;}
  .plan-mobile{display:grid;grid-template-columns:1fr;gap:16px;}
  .plan-mcard{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-1);}
  .plan-mcard.is-featured{border-color:#C9B8FA;background:var(--c-primary-soft);}
  .plan-mcard h3{font-size:18px;margin-bottom:6px;}
  .plan-mcard__price{font-size:13px;color:var(--c-ink-2);margin-bottom:14px;}
  .plan-mcard .btn{width:100%;margin-top:18px;}
}

/* ---------- 限时入口 ---------- */
.flash{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.flash__timer{display:flex;gap:12px;}
.time-box{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;min-width:68px;padding:10px 12px;border-radius:14px;background:rgba(255,138,61,.14);border:1px solid rgba(255,138,61,.35);}
.time-box b{font-size:26px;font-weight:800;line-height:1.1;color:var(--c-accent);font-variant-numeric:tabular-nums;font-variant-numeric:tabular-nums;}
.time-box i{font-style:normal;font-size:12px;color:#B9B3D4;margin-top:2px;}
.flash__text{flex:1 1 240px;font-size:17px;color:#EDE9FA;min-width:0;}
@media (max-width:767px){
  .flash{flex-direction:column;align-items:stretch;text-align:center;gap:22px;}
  .flash__timer{justify-content:center;}
  .time-box{min-width:56px;padding:8px 10px;}
  .time-box b{font-size:22px;}
  .flash .btn{width:100%;}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-card:hover .news-card__title{color:var(--c-primary);}
.news-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-card__media img{transform:scale(1.04);}
.news-card__media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);}
.news-card__body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1;}
.news-card__title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__desc{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:14px;font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}
.news-card__meta i{color:var(--c-primary);}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:64px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);text-align:center;}
.empty-state i{font-size:48px;color:var(--c-primary);opacity:.55;}
.empty-state p{font-size:14px;color:var(--c-ink-2);}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:639px){.news-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 咨询表单 ---------- */
.consult{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px;align-items:start;}
.consult__intro{background:var(--c-primary-soft);border:1px solid #DDD3FB;border-radius:20px;padding:36px 32px;}
.consult__intro h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;}
.consult__intro>p{margin-top:14px;font-size:15px;color:var(--c-ink-2);}
.consult__intro .check-list{margin-top:22px;}
.consult__contact{display:flex;align-items:center;gap:10px;margin-top:24px;padding-top:20px;border-top:1px solid rgba(108,59,244,.14);font-size:14px;color:var(--c-ink-2);}
.consult__contact i{color:var(--c-primary);}
.consult__form-wrap{background:#fff;border:1px solid var(--c-line);border-radius:20px;padding:32px;box-shadow:var(--shadow-2);}
.form-note{font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--c-line);
  border-radius:var(--r-input);background:#fff;font-size:15px;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:118px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(108,59,244,.15);}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--c-error);}
.field__error{display:none;margin-top:6px;font-size:12px;color:var(--c-error);}
.field.has-error .field__error{display:block;}
.checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:12px;color:var(--c-ink-3);line-height:1.7;margin:4px 0 22px;}
.checkbox-line input{width:16px;height:16px;margin-top:4px;flex:0 0 16px;accent-color:var(--c-primary);}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.form-status{display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-input);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:14px;border-left:4px solid var(--c-primary);}
.form-status.is-visible{display:block;}
@media (max-width:1023px){.consult{grid-template-columns:1fr;}}
@media (max-width:639px){.consult__intro{padding:26px 20px;}.consult__form-wrap{padding:24px 18px;}.field-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-item__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);transition:color .2s ease;}
.faq-item__q:hover{color:var(--c-primary);}
.faq-item__q i{flex:0 0 auto;font-size:15px;color:var(--c-primary);transition:transform .25s ease;}
.faq-item.is-open .faq-item__q i{transform:rotate(180deg);}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.is-open .faq-item__a{max-height:460px;}
.faq-item__a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);}
@media (max-width:639px){.faq-item__q{padding:18px 18px;font-size:16px;}.faq-item__a p{padding:0 18px 18px;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#B9B3D4;padding:72px 0 28px;border-top:1px solid rgba(108,59,244,.2);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand__mark{width:34px;height:34px;font-size:16px;}
.footer-brand span{font-size:17px;font-weight:800;color:#fff;}
.footer-col p{font-size:14px;line-height:1.85;color:#8E8AA6;max-width:24em;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#B9B3D4;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8E8AA6;}
.footer-bottom a{color:#B9B3D4;}
.footer-bottom a:hover{color:#fff;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:28px;}.site-footer{padding:56px 0 24px;}}

/* roulang page: article */
:root{
  --c-primary:#6C3BF4;
  --c-primary-dark:#4A22C4;
  --c-primary-soft:#EFE9FE;
  --c-secondary:#00B39A;
  --c-accent:#FF8A3D;
  --c-ink:#1B1630;
  --c-ink-2:#5D5878;
  --c-ink-3:#8E8AA6;
  --c-bg:#F6F4FB;
  --c-surface:#FFFFFF;
  --c-dark:#17122B;
  --c-line:#E6E2F3;
  --c-error:#D6455B;
  --r-card:16px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(27,22,48,.06);
  --shadow-2:0 12px 32px rgba(27,22,48,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--c-ink);
  background:var(--c-bg);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-ink);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--c-secondary);text-decoration:none}
button{font-family:inherit}
.shell{max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1200px){.shell{padding:0 32px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn--outline:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.btn--accent{background:var(--c-accent);color:#fff}
.btn--accent:hover{background:#F0762A;color:#fff;transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(108,59,244,.4);outline-offset:2px}

/* 导航 */
.site-header{position:sticky;top:16px;z-index:80;padding:0 16px}
.nav-pill{
  position:relative;
  max-width:var(--container);margin:0 auto;
  display:flex;align-items:center;gap:18px;
  height:72px;padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
  transition:height .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{height:64px;background:#fff;box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));
  color:#fff;font-size:19px;font-weight:800;display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand__text{font-size:17px;font-weight:700;color:var(--c-ink);white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-menu li{list-style:none}
.nav-menu a{
  display:inline-flex;align-items:center;height:42px;padding:0 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
}
.nav-menu a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.nav-menu__cta{display:none}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:#fff;cursor:pointer;padding:0 12px;margin-left:auto;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:.2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 面包屑 */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:28px 0 20px;font-size:13px;color:var(--c-ink-3);
}
.crumbs a{color:var(--c-ink-2)}
.crumbs a:hover{color:var(--c-secondary)}
.crumbs__sep{color:#C9C3E2}
.crumbs__leaf{
  max-width:300px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--c-ink-3);
}

/* 文章布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;
  align-items:start;padding-bottom:80px;
}
.article-layout--solo{grid-template-columns:minmax(0,1fr)}
.article-layout--solo .article-aside{display:none}
.article-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;
  box-shadow:var(--shadow-1);padding:40px 44px 36px;min-width:0;
}
.article-head{border-bottom:1px solid var(--c-line);padding-bottom:24px;margin-bottom:28px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-title{
  margin:16px 0 18px;max-width:780px;
  font-size:32px;line-height:1.4;font-weight:800;color:var(--c-ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  font-size:13px;color:var(--c-ink-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{font-size:14px;color:var(--c-primary)}
.article-meta__cat{color:var(--c-primary);font-weight:600}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.9;color:var(--c-ink);letter-spacing:.02em;text-align:left}
.article-body>*+*{margin-top:1.2em}
.article-body p{line-height:1.9}
.article-body h2{
  position:relative;font-size:25px;line-height:1.4;font-weight:700;
  margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;
  background:var(--c-primary);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:1.7em 0 .7em}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .6em}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-secondary)}
.article-body ul,.article-body ol{padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin:.6em 0;color:var(--c-ink)}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;width:7px;height:7px;border-radius:50%;
  background:var(--c-primary);
}
.article-body ol{counter-reset:li}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.1em;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
  border-radius:12px;color:var(--c-ink-2);font-size:16px;
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:12px;margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:10px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
  font-size:15px;margin:1.6em 0;
}
.article-body thead th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--c-line)}
.article-body tbody tr:nth-child(even){background:#FBFAFE}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  background:var(--c-dark);color:#EFEBFF;border-radius:10px;padding:16px 18px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:Consolas,Monaco,"Courier New",monospace}
.article-body p code,.article-body li code{
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:2em 0}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 20px;
  background:#FBFAFE;border:1px dashed var(--c-line);border-radius:16px;
}
.empty-state i{font-size:52px;color:#CFC7EE;display:block;margin-bottom:16px}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:20px}

/* 文末标签 */
.article-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row__label{font-size:13px;color:var(--c-ink-3)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#FBFAFE;font-size:13px;color:var(--c-ink-2);
}
.tag:hover{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary)}
.back-link{margin-left:auto;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.back-link:hover{color:var(--c-secondary)}

/* 侧栏 */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:22px 22px 20px;
}
.side-card__title{
  font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card__title::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-secondary);
}
.toc-list li+li{margin-top:4px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:14px;line-height:1.6;color:var(--c-ink-2);
  border-left:2px solid transparent;
}
.toc-list a:hover,.toc-list a.is-current{
  background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary);
}
.hot-list li+li{border-top:1px solid var(--c-line)}
.hot-list a{display:flex;gap:10px;padding:12px 0;font-size:14px;line-height:1.6;color:var(--c-ink-2)}
.hot-list a:hover{color:var(--c-primary)}
.hot-list span{
  flex:0 0 auto;font-size:13px;font-weight:800;color:#C9C1EE;
}
.hot-list a:hover span{color:var(--c-primary)}
.side-card--accent{
  background:var(--c-primary-soft);border-color:#DFD5FD;
}
.side-card--accent .side-card__title::before{background:var(--c-primary)}
.side-card--accent p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:16px}

/* 相关推荐 */
.rec-section{padding:8px 0 72px}
.section-head{margin-bottom:28px}
.section-head h2{font-size:28px;font-weight:700;line-height:1.4;color:var(--c-ink)}
.section-head p{max-width:640px;margin-top:10px;font-size:15px;color:var(--c-ink-2)}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.rec-card__media{position:relative;aspect-ratio:16/9;background:var(--c-primary-soft);overflow:hidden}
.rec-card__media img{width:100%;height:100%;object-fit:cover}
.rec-card__media .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92)}
.rec-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-card__title{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink)}
.rec-card:hover .rec-card__title{color:var(--c-primary)}
.rec-card__desc{font-size:14px;line-height:1.75;color:var(--c-ink-2)}
.rec-card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;
}
.rec-card__foot i{color:var(--c-primary)}

/* CTA 横条 */
.cta-band{
  background:var(--c-dark);color:#fff;padding:56px 0;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:linear-gradient(135deg,rgba(108,59,244,.55),rgba(0,179,154,.35));
  filter:blur(10px);opacity:.55;
}
.cta-band__inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4}
.cta-band p{margin-top:8px;font-size:15px;color:#C6BEE6}

/* 页脚 */
.site-footer{background:var(--c-dark);color:#C6BEE6;padding:64px 0 28px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:36px;border-top:1px solid rgba(108,59,244,.2);padding-top:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.85;color:#9F97C4}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:#9F97C4}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#8B83B0;
}
.footer-bottom a{color:#8B83B0}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:64px}
  .article-aside{position:static}
  .article-main{padding:32px 30px 30px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 12px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    padding:12px;box-shadow:var(--shadow-2);margin-left:0;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{height:48px;padding:0 16px;border-radius:14px;font-size:15px}
  .nav-menu__cta{display:block;margin-top:6px}
  .nav-menu__cta a{width:100%}
}
@media (max-width:768px){
  .article-title{font-size:26px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .article-main{padding:26px 20px 24px;border-radius:16px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .section-head h2{font-size:23px}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .crumbs{padding:20px 0 16px}
  .crumbs__leaf{max-width:180px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .site-header{top:10px;padding:0 12px}
  .nav-pill{height:64px}
}
@media (max-width:520px){
  .shell{padding:0 16px}
  .article-title{font-size:23px}
  .brand__text{font-size:15px}
  .back-link{margin-left:0}
  .cta-band{padding:40px 0}
  .cta-band h2{font-size:21px}
}

/* roulang page: category1 */
:root{
  --c-primary:#6C3BF4;
  --c-primary-dark:#4A22C4;
  --c-primary-soft:#EFE9FE;
  --c-secondary:#00B39A;
  --c-accent:#FF8A3D;
  --c-ink:#1B1630;
  --c-ink-2:#5D5878;
  --c-ink-3:#8E8AA6;
  --c-bg:#F6F4FB;
  --c-surface:#FFFFFF;
  --c-dark:#17122B;
  --c-line:#E6E2F3;
  --c-error:#D6455B;
  --shadow-1:0 2px 8px rgba(27,22,48,.06);
  --shadow-2:0 12px 32px rgba(27,22,48,.10);
  --radius-card:16px;
  --radius-input:12px;
  --radius-pill:999px;
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.02em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-secondary)}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em;color:var(--c-ink)}
h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.25}
h2{font-size:clamp(24px,3vw,38px);font-weight:700}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(108,59,244,.4);outline-offset:2px;border-radius:8px}
section[id],div[id]{scroll-margin-top:120px}

/* ========== 基础容器 ========== */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1200px){.shell{padding:0 32px}}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.03em;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(108,59,244,.28)}
.btn--primary:hover,.btn--primary:focus{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(74,34,196,.3)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(74,34,196,.3)}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn--ghost:hover,.btn--ghost:focus{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--light{background:#fff;color:var(--c-primary);box-shadow:0 8px 22px rgba(0,0,0,.18)}
.btn--light:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none}

/* ========== 顶部悬浮胶囊导航 ========== */
.site-header{
  position:sticky;
  top:16px;
  z-index:80;
  padding:0 16px;
}
.nav-pill{
  display:flex;
  align-items:center;
  gap:12px;
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  height:72px;
  padding:0 12px 0 20px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{
  height:64px;
  background:#fff;
  box-shadow:var(--shadow-2);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-weight:700;
  font-size:17px;
  flex:0 0 auto;
}
.brand:hover{color:var(--c-primary)}
.brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-secondary) 135%);
  color:#fff;
  font-size:16px;
  font-weight:800;
  letter-spacing:0;
}
.brand__text{white-space:nowrap}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-menu a{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:var(--c-ink-2);
}
.nav-menu a:hover{background:#F4F0FE;color:var(--c-primary)}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary)}
.nav-menu__cta{display:none}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  background:#fff;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:1023px){
  .site-header{top:12px;padding:0 12px}
  .nav-pill{height:64px;padding:0 10px 0 14px;gap:8px}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:12px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--shadow-2);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{height:48px;border-radius:14px;font-size:16px}
  .nav-menu__cta{display:block;margin-top:6px}
  .nav-menu__cta .btn{width:100%}
}

/* ========== 分类页头横幅 ========== */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:132px 0 72px;
  background:
    radial-gradient(320px 320px at 88% 0%,rgba(108,59,244,.14),transparent 70%),
    linear-gradient(180deg,#F6F4FB 0%,#FBF9FF 100%);
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center right;
  opacity:.10;
  pointer-events:none;
}
.cat-hero .shell{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-ink-2);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-secondary)}
.breadcrumb .sep{color:var(--c-ink-3)}
.breadcrumb .current{color:var(--c-ink-3)}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.eyebrow i{font-size:12px}
.cat-hero h1{margin-bottom:18px;max-width:620px}
.hero-lead{
  font-size:17px;
  color:var(--c-ink-2);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--c-ink-2)}
.hero-points li{display:inline-flex;align-items:center;gap:8px}
.hero-points i{color:var(--c-secondary);font-size:14px}
.hero-visual{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:var(--c-primary-soft);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(108,59,244,.18),rgba(0,179,154,.10));
  pointer-events:none;
}
.hero-visual__tag{
  position:absolute;
  left:16px;
  bottom:16px;
  z-index:2;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  background:rgba(23,18,43,.72);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
@media (max-width:1023px){
  .cat-hero{padding:112px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:-1}
  .hero-visual img{aspect-ratio:16/9}
}

/* ========== 通用区块 ========== */
.section{padding:96px 0}
.section--white{background:var(--c-surface)}
.section--soft{background:linear-gradient(180deg,#FBFAFF 0%,var(--c-bg) 100%)}
.section-head{max-width:680px;margin-bottom:36px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--c-ink-2);font-size:16px;margin:0}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:56px 0}}

/* ========== 筛选胶囊 ========== */
.filter-bar{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:28px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:6px}
.filter-bar::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:999px}
.chip{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  flex:0 0 auto;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ========== 推荐卡片网格 ========== */
.pick-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.pick-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pick-card:hover,.pick-card:focus-within{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#D8CDFB;
}
.pick-card__media{position:relative;overflow:hidden;background:var(--c-primary-soft)}
.pick-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.pick-card:hover .pick-card__media img{transform:scale(1.03)}
.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:var(--radius-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.04em;
}
.pick-card__badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94)}
.pick-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px}
.pick-card__title{
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  color:var(--c-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pick-card:hover .pick-card__title{color:var(--c-primary)}
.pick-card__desc{
  font-size:14px;
  color:var(--c-ink-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0;
}
.pick-card__foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-ink-3);
}
.pick-card__foot .arrow{color:var(--c-primary);transition:transform .2s ease}
.pick-card:hover .pick-card__foot .arrow{transform:translateX(4px)}
.grid-more{display:flex;justify-content:center;margin-top:36px}

/* ========== 卖点 ========== */
.value-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.value-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.value-card__icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;
  height:48px;
  border-radius:14px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:20px;
  margin-bottom:18px;
}
.value-card h3{font-size:18px;margin-bottom:10px}
.value-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85;margin:0}

/* ========== 适用场景 ========== */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:28px 26px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.scene-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-secondary));
}
.scene-card h3{font-size:18px;margin-bottom:12px}
.scene-card p{font-size:14.5px;color:var(--c-ink-2);margin:0 0 16px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}
.scene-tags span{
  font-size:12.5px;
  color:var(--c-ink-2);
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  padding:4px 12px;
}

/* ========== 上手流程 ========== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
}
.step__num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border-radius:var(--radius-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-ink-2);margin:0}

/* ========== FAQ ========== */
.faq{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  min-height:64px;
  padding:18px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:#FBFAFF;color:var(--c-primary)}
.faq-q .faq-icon{
  flex:0 0 auto;
  position:relative;
  width:20px;
  height:20px;
  border-radius:var(--radius-pill);
  background:var(--c-primary-soft);
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:10px;height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:translate(-50%,-50%);
  transition:transform .25s ease;
}
.faq-q .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 24px 22px;
  margin:0;
  font-size:15px;
  line-height:1.88;
  color:var(--c-ink-2);
  max-width:900px;
}

/* ========== CTA 横条 ========== */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--c-dark);
  color:#fff;
  border-radius:24px;
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.55),transparent 70%);
}
.cta-band__inner{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;margin:0}
.cta-band__action{position:relative;z-index:2;flex:0 0 auto;display:flex;align-items:center;gap:16px}
.cta-band__link{color:rgba(255,255,255,.82);font-size:14.5px;font-weight:600;border-bottom:1px solid transparent}
.cta-band__link:hover{color:#fff;border-bottom-color:#fff}

/* ========== 页脚 ========== */
.site-footer{
  margin-top:96px;
  background:var(--c-dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  font-size:14px;
  line-height:1.85;
}
.site-footer::before{content:"";display:block;height:1px;background:rgba(108,59,244,.35);margin:-72px 0 72px}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:17px;
  margin-bottom:16px;
}
.footer-col h3{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col p{margin:0;color:rgba(255,255,255,.66)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--c-ink-3)}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-ink-3);
}
.footer-bottom a{color:var(--c-ink-3)}
.footer-bottom a:hover{color:#fff}

@media (max-width:1023px){
  .value-grid,.steps,.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;gap:24px}
  .site-footer::before{margin:-72px 0 56px}
}
@media (max-width:639px){
  body{font-size:16px}
  .pick-grid,.value-grid,.steps,.scene-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero{padding:104px 0 48px}
  .hero-actions .btn{width:100%}
  .cta-band{padding:36px 24px;border-radius:20px}
  .cta-band__action{width:100%;flex-direction:column;align-items:stretch}
  .cta-band__action .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#6C3BF4;
  --c-primary-dark:#4A22C4;
  --c-primary-soft:#EFE9FE;
  --c-secondary:#00B39A;
  --c-accent:#FF8A3D;
  --c-ink:#1B1630;
  --c-ink-2:#5D5878;
  --c-ink-3:#8E8AA6;
  --c-bg:#F6F4FB;
  --c-surface:#FFFFFF;
  --c-dark:#17122B;
  --c-line:#E6E2F3;
  --c-error:#D6455B;
  --radius-card:16px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(27,22,48,.06);
  --shadow-2:0 12px 32px rgba(27,22,48,.10);
  --shell:1200px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  text-align:left;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-card);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;cursor:pointer;}
a:hover{color:var(--c-secondary);}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(108,59,244,.4);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;}
@media (min-width:1200px){.shell{padding:0 32px;}}
.section{padding:var(--section-y) 0;}
.section--soft{background:var(--c-bg);}
.section--white{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,3.4vw,38px);font-weight:700;line-height:1.3;color:var(--c-ink);letter-spacing:.02em;}
.section-head p{margin-top:14px;max-width:640px;color:var(--c-ink-2);font-size:16.5px;line-height:1.9;}
.section-head--center p{margin-left:auto;margin-right:auto;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--radius-pill);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:16px;z-index:60;padding:0 16px;}
.nav-pill{
  position:relative;
  width:min(1200px,100%);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:14px 20px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
  transition:background-color .25s ease,box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled .nav-pill{background:#fff;box-shadow:var(--shadow-2);padding:10px 20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:800;font-size:17px;letter-spacing:.02em;}
.brand:hover{color:var(--c-ink);}
.brand__mark{
  width:36px;height:36px;flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-secondary) 100%);
  color:#fff;font-size:17px;font-weight:800;letter-spacing:0;
}
.brand__text{white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-menu a{display:block;padding:10px 16px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;color:var(--c-ink-2);white-space:nowrap;}
.nav-menu a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.nav-menu__cta{display:none;}
.nav-cta{display:flex;align-items:center;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  margin-left:auto;
  border:1px solid var(--c-line);
  border-radius:14px;
  background:#fff;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;
  text-align:center;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(108,59,244,.22);}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:#F0732A;color:#fff;transform:translateY(-2px);}
.btn--sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.badge{display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:12px;font-weight:600;letter-spacing:.02em;}
.badge--accent{background:rgba(255,138,61,.14);color:#C25A16;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  margin-top:28px;
  padding:56px 0 72px;
  overflow:hidden;
  background-color:var(--c-bg);
  background-image:
    linear-gradient(rgba(108,59,244,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(108,59,244,.06) 1px,transparent 1px),
    radial-gradient(420px 320px at 88% 8%,rgba(108,59,244,.14),transparent 70%);
  background-size:28px 28px,28px 28px,auto;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.crumbs a{color:var(--c-ink-2);font-weight:600;}
.crumbs a:hover{color:var(--c-secondary);}
.crumbs span.sep{color:var(--c-line);}
.page-hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.28;letter-spacing:.02em;color:var(--c-ink);}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{margin-top:20px;max-width:560px;font-size:17px;line-height:1.9;color:var(--c-ink-2);}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-tags{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:13.5px;font-weight:600;box-shadow:var(--shadow-1);}
.hero-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-secondary);}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-2);}
.hero-figure::after{content:"";position:absolute;inset:0;border-radius:20px;background:rgba(108,59,244,.08);pointer-events:none;}

/* ---------- Z 型图文列表 ---------- */
.z-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.zlist{display:flex;flex-direction:column;gap:32px;}
.zrow{
  display:flex;
  align-items:center;
  gap:0;
  padding:28px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:20px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.zrow:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.zrow--rev{flex-direction:row-reverse;}
.zrow .zmedia{width:50%;flex:0 0 50%;padding:0 16px;}
.zrow .zbody{width:50%;flex:0 0 50%;padding:0 16px;}
.zmedia img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);}
.znum{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:64px;height:48px;
  padding:0 14px;
  border-radius:14px;
  background:rgba(108,59,244,.12);
  color:var(--c-primary);
  font-size:26px;font-weight:800;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.zbody h3{font-size:21px;font-weight:700;line-height:1.4;color:var(--c-ink);margin-bottom:12px;}
.zbody p{color:var(--c-ink-2);font-size:16px;line-height:1.9;}
.tick-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);line-height:1.7;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:16px;height:16px;border-radius:50%;
  background:var(--c-primary-soft);
  box-shadow:inset 0 0 0 4px var(--c-primary);
}
.zbody .btn{margin-top:20px;}

/* ---------- 侧栏咨询卡 ---------- */
.z-side{position:sticky;top:104px;}
.quick-card{
  background:var(--c-primary-soft);
  border:1px solid #DFD4FD;
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
}
.quick-card h3{font-size:19px;font-weight:700;color:var(--c-ink);margin-bottom:10px;}
.quick-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85;}
.quick-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:12px;}
.quick-list li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.75;color:var(--c-ink-2);}
.quick-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--c-secondary);}
.quick-note{margin-top:14px;font-size:12.5px;color:var(--c-ink-3);line-height:1.7;}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.step{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:26px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step__dot{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:44px;height:2px;
  background:linear-gradient(90deg,rgba(108,59,244,.28),rgba(0,179,154,.28));
  z-index:0;
}
.step{position:relative;z-index:1;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;
  background:transparent;border:0;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--c-ink);
  line-height:1.6;
  transition:background-color .2s ease,color .2s ease;
}
.faq-q:hover{background:#FBFAFE;color:var(--c-primary-dark);}
.faq-q .faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .25s ease;
}
.faq-item.is-open .faq-q .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);}

/* ---------- CTA 横条 ---------- */
.cta-band{
  background:var(--c-dark);
  border-radius:24px;
  padding:56px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.42),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.35;color:#fff;}
.cta-band p{margin-top:12px;font-size:16px;color:#BEB7D8;max-width:560px;line-height:1.85;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-band .btn--ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.12);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#BEB7D8;margin-top:96px;padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(108,59,244,.2);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.9;color:#9E97BC;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#9E97BC;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:24px;font-size:13px;color:#8E8AA6;}
.footer-bottom a{color:#8E8AA6;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--section-y:72px;}
  .nav-toggle{display:flex;}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    display:none;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    box-shadow:var(--shadow-2);
    margin-left:0;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{padding:14px 16px;font-size:16px;min-height:48px;display:flex;align-items:center;}
  .nav-menu__cta{display:block;margin-top:6px;}
  .nav-menu__cta .btn{width:100%;}
  .nav-cta{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:-1;}
  .z-layout{grid-template-columns:1fr;}
  .z-side{position:static;order:2;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 28px;}
}
@media (max-width:768px){
  .zrow,.zrow--rev{flex-direction:column;gap:20px;padding:20px;}
  .zrow .zmedia,.zrow .zbody{width:100%;flex:1 1 auto;padding:0;}
  .page-hero{margin-top:16px;padding:40px 0 56px;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (max-width:520px){
  :root{--section-y:56px;}
  .shell{padding:0 16px;}
  .site-header{padding:0 12px;top:10px;}
  .nav-pill{padding:10px 14px;gap:10px;}
  .brand__text{font-size:15px;}
  .page-hero h1{font-size:27px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 20px;border-radius:20px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .znum{min-width:56px;height:42px;font-size:22px;}
}