/* roulang page: index */
:root{
  --violet:#4A3A8C;
  --violet-deep:#3A2D6E;
  --violet-soft:#F0EDF8;
  --night:#1A1735;
  --night-2:#221E42;
  --gold:#E2B46A;
  --gold-deep:#CFA056;
  --teal:#4FB8AE;
  --paper:#F7F5F1;
  --white:#FFFFFF;
  --ink:#1C1A2E;
  --ink-2:#56536B;
  --ink-3:#8C89A0;
  --line:#E7E3DB;
  --line-dark:rgba(255,255,255,.14);
  --r-xl:24px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-sm:0 1px 2px rgba(28,26,46,.05);
  --sh-md:0 8px 24px -12px rgba(35,32,74,.18);
  --sh-lg:0 24px 48px -24px rgba(35,32,74,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--violet);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--gold-deep)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0;line-height:1.36;color:var(--ink)}
h1{font-size:44px;line-height:1.28}
h2{font-size:32px;line-height:1.36}
h3{font-size:22px;line-height:1.5}
h4{font-size:18px;line-height:1.6}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-lilac{background:var(--violet-soft)}
.section-dark{background:var(--night);color:#F5F3FF}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head p{margin:12px 0 0;color:var(--ink-2);font-size:16px;max-width:640px;line-height:1.8}
.eyebrow{display:inline-block;font-size:14px;letter-spacing:.06em;color:var(--violet);font-weight:500;margin-bottom:14px}
.link-more{font-size:16px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.link-more svg{width:16px;height:16px;transition:transform .18s var(--ease)}
.link-more:hover svg{transform:translateX(3px)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:16px;font-weight:500;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--gold);color:#221A0C;box-shadow:0 8px 20px -12px rgba(226,180,106,.9)}
.btn-primary:hover{background:#EDC07D;color:#221A0C;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(226,180,106,.95)}
.btn-outline{background:transparent;color:var(--violet);border-color:var(--violet)}
.btn-outline:hover{background:rgba(74,58,140,.08);color:var(--violet);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#F5F3FF;border-color:rgba(245,243,255,.5)}
.btn-outline-light:hover{background:rgba(245,243,255,.12);color:#fff}
.btn-lg{height:52px;padding:0 26px;font-size:17px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;line-height:1.6;
  background:var(--violet-soft);color:var(--violet);white-space:nowrap;
}
.badge-gold{background:var(--gold);color:#221A0C;font-weight:500}
.badge-teal{background:rgba(79,184,174,.14);color:#2E7C75}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
.badge-dark{background:rgba(255,255,255,.1);color:#E8E5FA}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--white);
  border-bottom:1px solid transparent;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-sm)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:600;color:var(--ink);letter-spacing:.01em}
.brand:hover{color:var(--ink)}
.brand svg{width:24px;height:24px;flex:none}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 16px;
  font-size:16px;color:var(--ink-2);
}
.nav-menu a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--violet);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-menu a:hover{color:var(--violet)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--violet);font-weight:500}
.nav-menu a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-login{font-size:16px;color:var(--ink-2)}
.nav-login:hover{color:var(--violet)}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(26,23,53,.42);opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease);z-index:70;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);background:var(--white);
  transform:translateX(100%);transition:transform .24s var(--ease);z-index:80;
  display:flex;flex-direction:column;padding:24px 20px 20px;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  display:flex;align-items:center;min-height:56px;font-size:18px;color:var(--ink);
  border-left:3px solid transparent;padding-left:14px;
}
.drawer nav a.active{border-left-color:var(--violet);color:var(--violet);font-weight:500}
.drawer-foot{margin-top:auto}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
body.drawer-open{overflow:hidden}

/* Hero */
.hero{
  position:relative;color:#F5F3FF;overflow:hidden;
  background-color:var(--night);
  background-image:
    radial-gradient(circle at 12% 22%, rgba(255,255,255,.09) 0 1.2px, transparent 1.2px),
    radial-gradient(circle at 68% 58%, rgba(255,255,255,.07) 0 1.2px, transparent 1.2px),
    linear-gradient(180deg, rgba(26,23,53,.74) 0%, rgba(26,23,53,.86) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:240px 240px,360px 360px,cover,cover;
  background-position:0 0,40px 60px,center,center;
  background-repeat:repeat,repeat,no-repeat,no-repeat;
  padding:96px 0 88px;
}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero h1{color:#FFFFFF;font-size:44px;line-height:1.28;margin-bottom:20px}
.hero-sub{font-size:18px;line-height:1.85;color:rgba(245,243,255,.78);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-link{color:#F5F3FF;font-size:16px;font-weight:500;border-bottom:1px solid rgba(245,243,255,.4);padding-bottom:2px}
.hero-link:hover{color:var(--gold);border-bottom-color:var(--gold)}
.hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.hero-points .badge{background:rgba(255,255,255,.1);color:rgba(245,243,255,.88);border:1px solid var(--line-dark)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--gold);
  border:1px solid rgba(226,180,106,.45);background:rgba(226,180,106,.1);
  padding:5px 14px;border-radius:999px;margin-bottom:22px;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
.member-card{
  position:relative;background:var(--white);border:1px solid rgba(74,58,140,.28);border-radius:var(--r-xl);
  padding:28px;color:var(--ink);box-shadow:0 40px 80px -40px rgba(0,0,0,.6);
}
.member-card::before{
  content:"";position:absolute;inset:-18px;border-radius:34px;z-index:-1;
  background:radial-gradient(circle at 50% 40%, rgba(226,180,106,.28), transparent 65%);
  filter:blur(6px);
}
.member-card-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.member-card-top strong{font-size:18px;font-weight:600}
.member-card-name{font-size:13px;color:var(--ink-3);margin:20px 0 6px}
.member-card-price{font-size:34px;font-weight:600;color:var(--violet);line-height:1.2}
.member-card-price span{font-size:15px;color:var(--ink-2);font-weight:400;margin-left:6px}
.member-card-list{margin:20px 0 24px;display:grid;gap:12px}
.member-card-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.7}
.member-card-list svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--teal)}
.member-card-foot{font-size:13px;color:var(--ink-3);text-align:center;margin-top:12px}

/* 数据条 */
.stat-band{background:var(--white);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:40px 0}
.stat-item{border-left:2px solid var(--violet-soft);padding-left:18px}
.stat-item strong{display:block;font-size:30px;font-weight:600;color:var(--violet);line-height:1.3}
.stat-item span{font-size:14px;color:var(--ink-2)}

/* 对比表 */
.table-shell{background:var(--white);border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-sm)}
table.compare{width:100%;border-collapse:collapse;font-size:15px}
table.compare th,table.compare td{padding:0 20px;text-align:left;border-bottom:1px solid var(--line);height:56px;vertical-align:middle}
table.compare thead th{background:var(--night);color:#F5F3FF;font-weight:500;height:64px;font-size:15px}
table.compare thead th:first-child{color:rgba(245,243,255,.7)}
table.compare tbody tr:nth-child(even) td{background:#FBFAF8}
table.compare td.group-label{background:var(--violet-soft)!important;color:var(--violet);font-size:14px;font-weight:500;height:44px}
table.compare .col-rec{background:rgba(74,58,140,.05)}
table.compare thead th.col-rec{background:var(--violet);color:#fff}
table.compare td .rec-flag{display:inline-flex;align-items:center;gap:6px}
table.compare td.note{color:var(--ink-3)}
.table-hint{font-size:13px;color:var(--ink-3);margin-top:14px}
.plan-cards{display:none;gap:14px;flex-direction:column}

/* 等级亮点 */
.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.plan-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(74,58,140,.25)}
.plan-card.tinted{background:var(--violet-soft);border-color:transparent}
.plan-grid .plan-card:nth-child(2){transform:translateY(24px)}
.plan-grid .plan-card:nth-child(3){transform:translateY(-24px)}
.plan-grid .plan-card:nth-child(2):hover,.plan-grid .plan-card:nth-child(3):hover{transform:translateY(22px)}
.plan-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.plan-card-head h3{font-size:22px}
.plan-audience{color:var(--ink-2);font-size:15px;margin-bottom:20px}
.plan-feats{display:grid;gap:12px;margin-bottom:24px}
.plan-feats li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.7}
.plan-feats svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--violet)}
.plan-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding-top:20px;border-top:1px solid rgba(28,26,46,.08);flex-wrap:wrap}
.plan-price{font-size:28px;font-weight:600;color:var(--violet);line-height:1.3}
.plan-price span{font-size:14px;color:var(--ink-2);font-weight:400}
.plan-price em{font-style:normal;font-size:14px;color:var(--ink-3);display:block;font-weight:400}

/* 专属内容预览 */
.lock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.lock-card{
  display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;color:inherit;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.lock-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(74,58,140,.25);color:inherit}
.lock-media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#3A2D6E,#1A1735);overflow:hidden}
.lock-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.lock-card:hover .lock-media img{transform:scale(1.03)}
.lock-flag{position:absolute;top:12px;right:12px}
.lock-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.lock-body h3{font-size:18px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lock-body p{font-size:15px;line-height:1.75;color:var(--ink-2);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lock-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.lock-foot svg{width:20px;height:20px;color:var(--ink-3)}

/* 最新信息 */
.news-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--white);font-size:14px;color:var(--ink-2);
}
.chip.is-current{background:var(--violet);border-color:var(--violet);color:#fff}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-item{
  display:flex;gap:18px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;color:inherit;box-shadow:var(--sh-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(74,58,140,.25);color:inherit}
.news-thumb{width:160px;height:110px;flex:none;border-radius:var(--r-md);overflow:hidden;background:linear-gradient(135deg,#EFEBF9,#DCD6F0)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.news-item:hover .news-thumb img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;min-width:0}
.news-body h3{font-size:17px;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14.5px;line-height:1.75;color:var(--ink-2);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.empty-state{
  grid-column:1/-1;background:var(--white);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state svg{width:44px;height:44px;color:var(--ink-3);margin:0 auto 16px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* FAQ */
.faq-list{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:500;line-height:1.7;color:var(--ink);
}
.faq-q:hover{color:var(--violet)}
.faq-q svg{width:20px;height:20px;flex:none;color:var(--violet);transition:transform .2s var(--ease)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:820px}

/* CTA */
.cta-band{
  background-color:var(--night);color:#F5F3FF;position:relative;overflow:hidden;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(255,255,255,.09) 0 1.2px, transparent 1.2px),
    radial-gradient(circle at 74% 66%, rgba(255,255,255,.06) 0 1.2px, transparent 1.2px);
  background-size:240px 240px,360px 360px;
  padding:112px 0;
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px}
.cta-band .cta-sub{color:rgba(245,243,255,.75);font-size:16px;margin:0}
.cta-checks{display:grid;gap:14px}
.cta-checks li{display:flex;gap:10px;align-items:flex-start;font-size:16px;color:rgba(245,243,255,.9);line-height:1.7}
.cta-checks svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--gold)}
.cta-action{display:grid;gap:12px;justify-items:start}
.cta-note{font-size:12px;color:rgba(245,243,255,.6);line-height:1.6;margin:0}

/* 页脚 */
.site-footer{
  background-color:var(--night);color:#F5F3FF;position:relative;overflow:hidden;
  background-image:radial-gradient(circle at 30% 20%, rgba(255,255,255,.06) 0 1.2px, transparent 1.2px);
  background-size:360px 360px;
  padding:72px 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-brand svg{width:24px;height:24px}
.footer-desc{font-size:15px;line-height:1.85;color:rgba(245,243,255,.7);max-width:340px}
.footer-col h4{font-size:14px;color:rgba(245,243,255,.55);font-weight:500;margin-bottom:16px}
.footer-col ul{display:grid;gap:4px}
.footer-col a{display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:rgba(245,243,255,.82)}
.footer-col a:hover{color:var(--gold)}
.footer-contact li{font-size:15px;color:rgba(245,243,255,.82);line-height:1.9;min-height:32px}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(245,243,255,.55);
}
.footer-bottom a{color:rgba(245,243,255,.7)}
.footer-bottom a:hover{color:var(--gold)}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:var(--white);
  border:1px solid var(--violet);color:var(--violet);cursor:pointer;z-index:50;
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px)}
.to-top svg{width:18px;height:18px}

@media (max-width:1100px){
  .hero-inner{gap:40px}
  .news-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr 1fr;gap:36px}
  .cta-action{grid-column:1/-1}
}
@media (max-width:900px){
  h1{font-size:34px}
  .hero h1{font-size:34px}
  .nav-menu,.nav-right .nav-login{display:none}
  .nav-right .btn{display:none}
  .nav-toggle{display:flex}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .hero{padding:72px 0 64px}
  .hero-inner{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .plan-grid{grid-template-columns:1fr;gap:20px}
  .plan-grid .plan-card:nth-child(2),.plan-grid .plan-card:nth-child(3){transform:none}
  .plan-grid .plan-card:nth-child(2):hover,.plan-grid .plan-card:nth-child(3):hover{transform:translateY(-2px)}
  .lock-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .table-shell{display:none}
  .plan-cards{display:flex}
  .cta-band{padding:72px 0}
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 20px}
  h2{font-size:24px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .section{padding:56px 0}
  .stat-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column}
  .news-thumb{width:100%;height:180px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .member-card{padding:22px}
  .plan-foot{flex-direction:column;align-items:stretch}
  .plan-foot .btn{width:100%}
  .cta-action{justify-items:stretch}
  .cta-action .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#4A3A8C;
  --brand-deep:#1A1735;
  --gold:#E2B46A;
  --teal:#4FB8AE;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --lilac:#F0EDF8;
  --border:#E7E3DB;
  --text:#1C1A2E;
  --text-2:#56536B;
  --text-3:#8C89A0;
  --on-dark:#F5F3FF;
  --on-dark-2:rgba(245,243,255,.72);
  --on-dark-3:rgba(245,243,255,.52);
  --r-lg:24px;
  --r-md:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-sm:0 1px 2px rgba(28,26,46,.05);
  --sh-md:0 8px 24px -12px rgba(35,32,74,.18);
  --sh-lg:0 24px 48px -24px rgba(35,32,74,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:16px;font-weight:500;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background:var(--gold);color:#241E10;box-shadow:var(--sh-sm);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);filter:brightness(1);}
.btn-secondary{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-secondary:hover{background:rgba(74,58,140,.08);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(0);}
.btn-lg{height:52px;padding:0 28px;font-size:17px;}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);
  border-bottom:1px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease);
}
.text-link:hover{border-bottom-color:currentColor;}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;line-height:1;white-space:nowrap;
}
.badge-lilac{background:var(--lilac);color:var(--brand);}
.badge-gold{background:rgba(226,180,106,.22);color:#7A5518;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--border);box-shadow:var(--sh-sm);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:19px;font-weight:600;color:var(--text);letter-spacing:0;
}
.brand svg{width:22px;height:22px;flex:none;}
.nav-menu{display:flex;align-items:center;gap:28px;margin:0 auto;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:15px;color:var(--text-2);
  transition:color .18s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;
  transition:transform .18s var(--ease);
}
.nav-menu a:hover{color:var(--brand);}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:18px;}
.nav-login{font-size:15px;color:var(--text-2);transition:color .18s var(--ease);}
.nav-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;border:1px solid var(--border);
  border-radius:10px;background:#fff;color:var(--text);cursor:pointer;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(74,58,140,.4);background:#FBFAF8;}
.nav-toggle svg{width:22px;height:22px;}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(26,23,53,.42);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,360px);z-index:80;
  background:#fff;display:flex;flex-direction:column;padding:20px 20px 24px;
  transform:translateX(102%);transition:transform .24s var(--ease);
  box-shadow:-24px 0 48px -24px rgba(35,32,74,.35);
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border);}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--border);border-radius:10px;background:#fff;
  color:var(--text-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:rgba(74,58,140,.4);color:var(--brand);}
.drawer-menu{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-menu a{
  display:flex;align-items:center;min-height:56px;font-size:18px;color:var(--text);
  border-left:3px solid transparent;padding-left:14px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.drawer-menu a:hover{color:var(--brand);}
.drawer-menu a.active{color:var(--brand);border-left-color:var(--brand);background:#FBFAF8;}
.drawer-cta{margin-top:16px;width:100%;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:24px 0 0;font-size:13px;color:var(--text-3);
}
.crumb a{color:var(--text-3);transition:color .18s var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb-sep{color:var(--text-3);}
.crumb .current{
  color:var(--brand);max-width:min(62vw,540px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章布局 ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,760px) 300px;
  gap:56px;padding:32px 0 96px;align-items:start;
}
.article-main{min-width:0;}
.article-head{padding-bottom:24px;border-bottom:1px solid var(--border);}
.article-title{
  font-size:36px;line-height:1.35;font-weight:600;color:var(--text);
  margin-top:14px;word-break:break-word;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:16px;font-size:14px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border);}
.article-meta .cat{color:var(--brand);}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text-2);padding-top:32px;}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:600;color:var(--text);
  margin-top:44px;margin-bottom:16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--text);margin-top:32px;margin-bottom:12px;}
.article-body h4{font-size:18px;line-height:1.6;font-weight:600;color:var(--text);margin-top:24px;margin-bottom:10px;}
.article-body strong{color:var(--text);font-weight:600;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(74,58,140,.35);transition:border-color .18s var(--ease);}
.article-body a:hover{border-bottom-color:var(--gold);}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:#F5F1E8;color:var(--text-2);
  border-left:3px solid var(--gold);border-radius:0 12px 12px 0;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;width:100%;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figure img{margin:0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body ul,.article-body ol{padding-left:1.5em;list-style:revert;}
.article-body li+li{margin-top:.5em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--border);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--lilac);color:var(--text);font-weight:600;text-align:left;padding:12px 16px;}
.article-body td{padding:12px 16px;border-top:1px solid var(--border);color:var(--text-2);}
.article-body tbody tr:nth-child(even){background:#FBFAF8;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}
.article-body code{
  background:var(--lilac);color:var(--brand);padding:2px 6px;border-radius:6px;
  font-size:15px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 文章底部标签 ---------- */
.article-foot{margin-top:48px;padding-top:24px;border-top:1px solid var(--border);}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tag-label{font-size:14px;color:var(--text-3);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:13px;color:var(--text-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.tag:hover{border-color:rgba(74,58,140,.4);color:var(--brand);transform:translateY(-1px);}

/* ---------- 空态 ---------- */
.empty-state{
  margin-top:40px;padding:56px 32px;text-align:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-sm);
}
.empty-state svg{width:40px;height:40px;color:var(--text-3);margin:0 auto 16px;}
.empty-state p{font-size:16px;color:var(--text-2);}
.empty-state .btn{margin-top:20px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-sm);
  transition:border-color .2s var(--ease);
}
.side-card:hover{border-color:rgba(74,58,140,.25);}
.side-card--lilac{background:var(--lilac);border-color:transparent;box-shadow:none;}
.side-card--lilac p{font-size:14px;line-height:1.8;color:var(--text-2);}
.side-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;}
.side-links{display:grid;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:42px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--border);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.side-links li:last-child a{border-bottom-color:transparent;}
.side-links a:hover{color:var(--brand);padding-left:4px;}
.side-links a span{color:var(--text-3);font-size:13px;}
.side-card .btn{margin-top:16px;}
.side-card .text-link{margin-top:12px;}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  position:relative;background-color:var(--brand-deep);overflow:hidden;
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 12% 24%, rgba(245,243,255,.08) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 68% 72%, rgba(245,243,255,.06) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 42% 88%, rgba(245,243,255,.05) 0 1.5px, transparent 1.6px);
  background-size:240px 240px,360px 360px,520px 520px;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:32px;line-height:1.36;font-weight:600;color:var(--on-dark);}
.cta-inner p{margin-top:12px;font-size:16px;line-height:1.8;color:var(--on-dark-2);max-width:560px;}
.cta-action{display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.cta-note{font-size:12px;color:var(--on-dark-3);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;z-index:55;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  box-shadow:var(--sh-md);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background-color .18s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--lilac);}
.to-top svg{width:20px;height:20px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--brand-deep);color:var(--on-dark-2);
  padding:64px 0 24px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 16% 22%, rgba(245,243,255,.07) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 72% 68%, rgba(245,243,255,.05) 0 1.5px, transparent 1.6px);
  background-size:260px 260px,380px 380px;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:18px;font-weight:600;color:var(--on-dark);margin-bottom:16px;
}
.footer-brand svg{width:20px;height:20px;flex:none;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--on-dark-3);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:500;color:var(--on-dark-3);margin-bottom:10px;}
.footer-col ul{display:grid;gap:2px;}
.footer-col li a,.footer-contact li{
  display:inline-flex;align-items:center;min-height:40px;
  font-size:15px;color:var(--on-dark-2);
  transition:color .18s var(--ease);
}
.footer-col li a:hover{color:var(--gold);}
.footer-contact li{min-height:34px;font-size:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:var(--on-dark-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-wrap{grid-template-columns:minmax(0,1fr) 280px;gap:40px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .article-wrap{grid-template-columns:1fr;gap:40px;padding-bottom:72px;}
  .article-side{position:static;}
  .cta-inner h2{font-size:28px;}
}
@media (max-width:900px){
  .nav-menu{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-title{font-size:30px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:23px;margin-top:36px;}
  .article-body h3{font-size:19px;}
  .cta-band{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-action{width:100%;}
  .cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .nav-inner{height:64px;}
  .nav-menu a{height:64px;}
  .article-title{font-size:26px;}
  .article-wrap{padding:24px 0 56px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .empty-state{padding:40px 20px;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category1 */
:root{
  --violet:#4A3A8C;
  --violet-mid:#6A5AB0;
  --violet-soft:rgba(74,58,140,.08);
  --night:#1A1735;
  --gold:#E2B46A;
  --gold-light:#EBBF7C;
  --teal:#4FB8AE;
  --paper:#F7F5F1;
  --white:#FFFFFF;
  --lilac:#F0EDF8;
  --ink:#1C1A2E;
  --ink-2:#56536B;
  --ink-3:#8C89A0;
  --line:#E7E3DB;
  --line-soft:#FBFAF8;
  --line-dark:rgba(255,255,255,.14);
  --on-dark:#F5F3FF;
  --on-dark-2:rgba(245,243,255,.72);
  --danger:#C0554A;
  --r-xl:24px; --r-lg:16px; --r-md:12px; --r-sm:10px; --r-pill:999px;
  --sh-sm:0 1px 2px rgba(28,26,46,.05);
  --sh-md:0 8px 24px -12px rgba(35,32,74,.18);
  --sh-lg:0 24px 48px -24px rgba(35,32,74,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.9;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--violet);text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0;color:var(--ink);}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:6px;}
nav.cta-band :focus-visible,.cta-band :focus-visible,.site-footer :focus-visible{outline-color:var(--gold);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.no-scroll{overflow:hidden;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-sm);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:var(--ink);white-space:nowrap;}
.brand svg{width:22px;height:22px;flex:none;}
.nav-menu{display:flex;align-items:stretch;gap:28px;margin-left:6px;height:72px;}
.nav-menu a{display:inline-flex;align-items:center;font-size:16px;color:var(--ink-2);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.nav-menu a:hover{color:var(--violet);}
.nav-menu a.active{color:var(--violet);font-weight:500;border-bottom-color:var(--violet);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:18px;}
.link-plain{font-size:16px;color:var(--ink-2);transition:color .2s var(--ease);}
.link-plain:hover{color:var(--violet);}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);cursor:pointer;transition:border-color .2s var(--ease),background-color .2s var(--ease);}
.nav-toggle:hover{border-color:rgba(74,58,140,.35);background:var(--violet-soft);}
.nav-toggle svg{width:22px;height:22px;}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(26,23,53,.45);opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:88;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:90;transform:translateX(102%);transition:transform .24s var(--ease);display:flex;flex-direction:column;padding:20px 22px;box-shadow:var(--sh-lg);}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-head span{font-size:16px;font-weight:600;}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-nav a{display:flex;align-items:center;height:60px;font-size:18px;color:var(--ink-2);border-left:3px solid transparent;padding-left:14px;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
.drawer-nav a.active{color:var(--violet);border-left-color:var(--violet);background:var(--lilac);font-weight:500;}
.drawer-foot{border-top:1px solid var(--line);padding-top:16px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-md);border:1px solid transparent;font-size:16px;font-weight:500;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.btn-sm{height:36px;font-size:15px;padding:0 16px;border-radius:var(--r-sm);}
.btn-lg{height:52px;font-size:16px;padding:0 28px;}
.btn-block{width:100%;}
.btn-primary{background:var(--gold);color:#2A1F0B;}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-1px);box-shadow:0 10px 20px -10px rgba(226,180,106,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--violet);color:var(--violet);}
.btn-ghost:hover{background:var(--violet-soft);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;border-color:rgba(245,243,255,.4);color:var(--on-dark);}
.btn-ghost-light:hover{background:rgba(245,243,255,.12);transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--violet);position:relative;}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width .18s var(--ease);}
.link-arrow:hover::after{width:100%;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--lilac);
  padding:44px 0 40px;
  min-height:300px;
  display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(74,58,140,.07) 0 2px, transparent 3px),
    radial-gradient(circle at 68% 62%, rgba(74,58,140,.05) 0 2px, transparent 3px),
    radial-gradient(circle at 88% 22%, rgba(79,184,174,.09) 0 2px, transparent 3px);
  background-size:240px 240px,360px 360px,520px 520px;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-3);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--violet);}
.breadcrumb .current{color:var(--violet);}
.page-hero h1{font-size:40px;line-height:1.28;}
.hero-sub{margin:14px 0 0;max-width:660px;font-size:17px;color:var(--ink-2);}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.anchor-pills a{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid rgba(74,58,140,.22);background:rgba(255,255,255,.7);font-size:14px;color:var(--ink-2);transition:all .18s var(--ease);}
.anchor-pills a:hover{border-color:var(--violet);color:var(--violet);}
.anchor-pills a.is-active{background:var(--violet);border-color:var(--violet);color:#fff;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--line-soft);}
.section-lilac{background:var(--lilac);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:32px;line-height:1.36;}
.section-head p{margin:14px 0 0;color:var(--ink-2);font-size:17px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--violet);background:var(--lilac);border-radius:var(--r-pill);padding:5px 12px;margin-bottom:16px;}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);}

/* ---------- compare table ---------- */
.table-wrap{margin-top:8px;border:1px solid var(--line);border-radius:var(--r-lg);overflow:visible;background:#fff;}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border-radius:var(--r-lg);overflow:hidden;}
.compare-table caption{text-align:left;padding:18px 24px 0;color:var(--ink-2);font-size:15px;}
.compare-table thead th{
  position:sticky;top:72px;z-index:3;background:#fff;
  border-bottom:1px solid var(--line);
  padding:16px 18px;text-align:left;font-size:15px;font-weight:600;color:var(--ink);
}
.compare-table thead th:first-child{color:var(--ink-2);font-weight:500;}
.compare-table thead th.is-recommended{background:var(--lilac);}
.rec-badge{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);background:var(--gold);color:#2A1F0B;font-size:12px;font-weight:600;margin-right:8px;}
.compare-table tbody tr{background:#fff;transition:background-color .18s var(--ease);}
.compare-table tbody tr:nth-child(odd):not(.group-row){background:var(--line-soft);}
.compare-table tbody tr:hover{background:#F4F1FA;}
.compare-table th[scope="row"]{text-align:left;font-weight:500;font-size:15px;color:var(--ink);padding:16px 18px;border-bottom:1px solid var(--line);}
.compare-table td{padding:16px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);font-size:15px;line-height:1.7;}
.compare-table td.is-recommended{background:rgba(240,237,248,.72);color:var(--ink);font-weight:500;}
.compare-table tbody tr:hover td.is-recommended{background:rgba(228,222,244,.85);}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0;}
.group-row th{
  background:#F3F1EC;color:var(--violet);font-size:13px;font-weight:600;letter-spacing:.02em;
  padding:10px 18px;border-bottom:1px solid var(--line);text-align:left;
}
.compare-table tbody tr.group-row:hover{background:#F3F1EC;}
.mk-ok{display:inline-flex;align-items:center;gap:6px;color:var(--ink);}
.mk-ok::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none;}
.mk-none{color:var(--ink-3);}

/* ---------- accordion plan cards (mobile) ---------- */
.plan-accordion{display:none;margin-top:8px;}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-sm);}
.plan-card.is-recommended{border-color:rgba(226,180,106,.7);}
.plan-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;background:#fff;border:0;cursor:pointer;text-align:left;font-size:17px;font-weight:600;}
.plan-trigger .plan-name{display:inline-flex;align-items:center;gap:10px;}
.plan-trigger svg{width:18px;height:18px;color:var(--ink-3);transition:transform .2s var(--ease);flex:none;}
.plan-card.is-open .plan-trigger svg{transform:rotate(180deg);}
.plan-body{display:none;padding:0 20px 18px;border-top:1px solid var(--line);}
.plan-card.is-open .plan-body{display:block;}
.plan-body li{padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);line-height:1.75;}
.plan-body li:last-child{border-bottom:0;}
.plan-body li strong{color:var(--ink);font-weight:500;}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:56px;align-items:center;}
.split-media{border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-md);}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-body h2{font-size:32px;line-height:1.36;}
.split-body p{margin:16px 0 0;color:var(--ink-2);}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-2);line-height:1.8;}
.check-list li strong{display:block;color:var(--ink);font-weight:500;}
.check-list .ic{width:22px;height:22px;flex:none;margin-top:5px;color:var(--violet);}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:34px;width:2px;background:linear-gradient(180deg,rgba(74,58,140,.38),rgba(74,58,140,.06));}
.tl-item{position:relative;padding-left:76px;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-index{position:absolute;left:0;top:2px;width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--violet);color:var(--violet);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(74,58,140,.25);}
.tl-card.is-featured{background:var(--lilac);border-color:rgba(226,180,106,.75);}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;}
.tl-name{font-size:22px;font-weight:600;}
.tl-price{font-size:15px;color:var(--ink-2);}
.tl-price b{font-size:20px;color:var(--violet);font-weight:600;}
.tl-audience{margin:10px 0 0;font-size:15px;color:var(--ink-3);}
.tl-points{margin-top:16px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;}
.tl-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.tl-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--violet);}
.tl-actions{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500;}
.tag-gold{background:var(--gold);color:#2A1F0B;}
.tag-lilac{background:var(--lilac);color:var(--violet);}
.tag-teal{background:rgba(79,184,174,.14);color:#1F6E67;}

/* ---------- steps ---------- */
.steps{margin-top:8px;}
.step{position:relative;padding:6px 0 34px 68px;margin-left:15px;border-left:2px solid rgba(74,58,140,.16);}
.step:last-child{border-left-color:transparent;padding-bottom:0;}
.step-dot{position:absolute;left:-15px;top:6px;width:30px;height:30px;border-radius:50%;background:#fff;border:2px solid var(--violet);color:var(--violet);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;}
.step h3{font-size:22px;line-height:1.5;}
.step p{margin:8px 0 0;color:var(--ink-2);font-size:16px;}
.step-meta{margin-top:12px;font-size:13px;color:var(--ink-3);}

/* ---------- billing ---------- */
.billing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:8px;}
.billing-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.billing-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(74,58,140,.25);}
.billing-card h3{font-size:20px;}
.billing-card p{margin:12px 0 0;color:var(--ink-2);font-size:15px;}
.billing-list{margin-top:16px;display:grid;gap:10px;}
.billing-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.billing-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--teal);}
.footnote{margin-top:24px;font-size:13px;color:var(--ink-3);line-height:1.7;}

/* ---------- faq ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:6px 26px;margin-top:8px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.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:500;color:var(--ink);line-height:1.7;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary svg{width:18px;height:18px;color:var(--ink-3);flex:none;transition:transform .2s var(--ease);}
.faq-item[open] summary svg{transform:rotate(180deg);}
.faq-item[open] summary{color:var(--violet);}
.faq-body{padding:0 0 20px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:860px;}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--night);color:var(--on-dark);padding:112px 0;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(26,23,53,.88),rgba(26,23,53,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 12% 26%, rgba(255,255,255,.08) 0 2px, transparent 3px),
    radial-gradient(circle at 62% 68%, rgba(255,255,255,.07) 0 2px, transparent 3px),
    radial-gradient(circle at 84% 18%, rgba(226,180,106,.14) 0 2px, transparent 3px);
  background-size:240px 240px,360px 360px,520px 520px;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) minmax(0,.9fr);gap:48px;align-items:center;}
.cta-copy h2{color:var(--on-dark);font-size:32px;line-height:1.36;}
.cta-copy p{margin:14px 0 0;color:var(--on-dark-2);font-size:16px;}
.cta-points{display:grid;gap:14px;}
.cta-points li{display:flex;gap:10px;align-items:center;font-size:16px;color:var(--on-dark);}
.cta-points svg{width:20px;height:20px;color:var(--teal);flex:none;}
.cta-action{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.cta-note{font-size:12px;color:var(--on-dark-2);line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:var(--on-dark-2);padding:72px 0 28px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 22% 34%, rgba(255,255,255,.06) 0 2px, transparent 3px),
    radial-gradient(circle at 72% 72%, rgba(255,255,255,.05) 0 2px, transparent 3px);
  background-size:360px 360px,520px 520px;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:var(--on-dark);}
.footer-brand svg{width:22px;height:22px;flex:none;}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--on-dark-2);max-width:360px;}
.footer-col h4{font-size:14px;font-weight:500;color:rgba(245,243,255,.72);margin-bottom:14px;}
.footer-col ul{display:grid;gap:2px;}
.footer-col a{display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:var(--on-dark-2);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--gold);}
.footer-contact li{font-size:15px;line-height:1.9;padding:6px 0;color:var(--on-dark-2);}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(245,243,255,.55);}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
  .split{gap:40px;}
}
@media (max-width:1024px){
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .link-plain{display:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-action{align-items:stretch;}
  .cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .page-hero{padding:36px 0 32px;min-height:0;}
  .page-hero h1{font-size:30px;}
  .section{padding:56px 0;}
  .section-head h2,.split-body h2,.cta-copy h2{font-size:24px;}
  .cta-band{padding:56px 0;}
  .tl-points{grid-template-columns:1fr;}
  .billing-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .table-wrap{display:none;}
  .plan-accordion{display:block;}
  .compare-table thead th{top:0;}
  .faq-list{padding:2px 18px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-desc{max-width:none;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .tl-item{padding-left:60px;}
  .tl-index{width:40px;height:40px;font-size:14px;}
  .timeline::before{left:19px;}
  .tl-card{padding:20px;}
  .step{padding-left:56px;}
  .brand{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --primary:#4A3A8C;
  --primary-deep:#3A2E70;
  --ink:#1A1735;
  --gold:#E2B46A;
  --cyan:#4FB8AE;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --lilac:#F0EDF8;
  --text:#1C1A2E;
  --text-2:#56536B;
  --text-3:#8C89A0;
  --line:#E7E3DB;
  --line-dark:rgba(255,255,255,.14);
  --r-xl:24px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-sm:0 1px 2px rgba(28,26,46,.05);
  --sh-md:0 8px 24px -12px rgba(35,32,74,.18);
  --sh-lg:0 24px 48px -24px rgba(35,32,74,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --err:#C0554A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
body{
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
h1,h2,h3,h4{color:var(--ink);font-weight:600;letter-spacing:0}
h2{font-size:32px;line-height:1.36}
h3{font-size:22px;line-height:1.5}
h4{font-size:18px;line-height:1.6}
p{color:var(--text-2)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-sm)}
.header-inner{display:flex;align-items:center;gap:32px;height:72px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:600;color:var(--ink)}
.brand svg{width:22px;height:22px;flex:0 0 22px}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:16px;color:var(--text-2);transition:color .2s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:20px;width:0;height:2px;
  background:var(--primary);transition:width .2s var(--ease);
}
.nav-menu a:hover{color:var(--primary)}
.nav-menu a.active{color:var(--primary);font-weight:500}
.nav-menu a.active::after{width:100%}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:20px}
.link-plain{font-size:16px;color:var(--text-2);transition:color .2s var(--ease)}
.link-plain:hover{color:var(--primary)}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;align-items:center;justify-content:center;border-radius:var(--r-md)}
.nav-toggle svg{width:24px;height:24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:16px;font-weight:500;border:1px solid transparent;
  transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background:var(--gold);color:#1A1735;box-shadow:var(--sh-sm)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:rgba(74,58,140,.08);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:15px}
.btn-lg{height:52px;padding:0 28px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;filter:none}
.link-arrow{
  position:relative;display:inline-block;font-size:16px;color:var(--primary);padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--primary);
  transition:width .18s var(--ease);
}
.link-arrow:hover::after{width:100%}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(26,23,53,.45);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;width:min(84vw,360px);
  background:#fff;display:flex;flex-direction:column;padding:24px 20px;
  transform:translateX(100%);transition:transform .24s var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-head .brand{font-size:18px}
.drawer-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-md);color:var(--text-2)}
.drawer-close:hover{background:var(--lilac);color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;padding-top:8px}
.drawer-nav a{
  font-size:18px;line-height:3.2;padding-left:14px;color:var(--text-2);
  border-left:3px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-nav a:hover{color:var(--primary)}
.drawer-nav a.active{color:var(--primary);border-left-color:var(--primary);font-weight:500}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ============ Hero ============ */
.hero-help{
  position:relative;overflow:hidden;background:var(--lilac);
  padding:64px 0 56px;
}
.hero-help::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle, rgba(74,58,140,.14) .9px, transparent .9px),
    radial-gradient(circle, rgba(74,58,140,.09) .9px, transparent .9px),
    radial-gradient(circle, rgba(74,58,140,.06) .9px, transparent .9px);
  background-size:240px 240px,360px 360px,520px 520px;
  background-position:0 0,70px 100px,160px 40px;
}
.hero-inner{position:relative;max-width:780px;margin:0 auto;text-align:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--primary);
  font-size:13px;line-height:1;margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.hero-help h1{font-size:clamp(30px,3.6vw,40px);line-height:1.28;margin-bottom:16px}
.hero-help p.lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:640px;margin:0 auto}
.hero-search{
  display:flex;gap:8px;align-items:center;max-width:560px;margin:28px auto 0;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px;box-shadow:var(--sh-md);
}
.hero-search input{
  flex:1;min-width:0;height:44px;border:0;background:transparent;padding:0 14px;font-size:16px;outline:none;
}
.hero-search input::placeholder{color:var(--text-3)}
.hero-hint{margin-top:14px;font-size:13px;line-height:1.6;color:var(--text-3)}

/* ============ 数据条 ============ */
.quick-stats{padding:72px 0 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-sm);transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.stat-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.stat-num{display:flex;align-items:baseline;gap:6px;font-size:28px;font-weight:600;color:var(--ink);line-height:1.2}
.stat-num em{font-style:normal;font-size:15px;font-weight:500;color:var(--text-2)}
.stat-card p{margin-top:8px;font-size:15px;line-height:1.75;color:var(--text-2)}

/* ============ 主体双栏 ============ */
.help-main{padding:72px 0 96px}
.help-layout{display:grid;grid-template-columns:240px 1fr;gap:48px;align-items:start}
.side-nav{position:sticky;top:96px}

.side-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 16px;box-shadow:var(--sh-sm);
}
.side-panel h3{font-size:14px;color:var(--text-3);font-weight:500;padding:0 8px 12px;letter-spacing:0}
.side-panel ul{display:flex;flex-direction:column;gap:2px}
.side-panel a{
  display:block;font-size:15px;line-height:1.6;padding:10px 8px 10px 14px;
  color:var(--text-2);border-left:3px solid transparent;border-radius:0 var(--r-sm) var(--r-sm) 0;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.side-panel a:hover{color:var(--primary);background:var(--lilac)}
.side-panel a.active{color:var(--primary);font-weight:500;border-left-color:var(--primary);background:var(--lilac)}
.side-card{
  margin-top:20px;background:var(--lilac);border-radius:var(--r-lg);padding:20px;
}
.side-card h4{font-size:16px;margin-bottom:8px}
.side-card p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:14px}
.side-card .btn{width:100%}

.help-content{min-width:0}
.content-head{margin-bottom:32px}
.content-head h2{margin-bottom:12px}
.content-head p{max-width:70ch}

.faq-group{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:4px 24px;box-shadow:var(--sh-sm);margin-bottom:32px;
}
.faq-group-title{
  font-size:22px;line-height:1.5;padding:22px 0 16px;border-bottom:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;text-align:left;font-size:17px;line-height:1.7;font-weight:500;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q .chev{flex:0 0 20px;width:20px;height:20px;color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease)}
.faq-q[aria-expanded="true"]{color:var(--primary)}
.faq-q[aria-expanded="true"] .chev{transform:rotate(180deg);color:var(--primary)}
.faq-a{padding:0 0 20px;max-width:78ch}
.faq-a[hidden]{display:none}
.faq-a p{font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-a p + p{margin-top:10px}

/* ============ 图文步骤 ============ */
.steps-section{padding:0 0 96px}
.section-head{max-width:680px;margin-bottom:40px}
.section-head h2{margin-bottom:12px}
.section-head p{font-size:16px;line-height:1.85;color:var(--text-2)}
.step-row{
  display:grid;grid-template-columns:45% 1fr;gap:48px;align-items:center;
  padding:32px 0;border-bottom:1px solid var(--line);
}
.step-row:last-child{border-bottom:0;padding-bottom:0}
.step-row:nth-child(even) .step-media{order:2}
.step-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);transition:transform .24s var(--ease);
}
.step-media{overflow:hidden;border-radius:var(--r-md)}
.step-row:hover .step-media img{transform:scale(1.03)}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--lilac);color:var(--primary);
  font-size:15px;font-weight:600;line-height:1;margin-bottom:16px;
}
.step-body h3{margin-bottom:12px}
.step-body p{font-size:16px;line-height:1.85;color:var(--text-2);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.8;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:14px;height:8px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg) scale(.9);border-radius:1px;
}

/* ============ 联系支持 ============ */
.support-section{padding:0 0 96px}
.support-card{
  background:var(--lilac);border-radius:var(--r-xl);padding:48px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start;
}
.support-intro h2{margin-bottom:14px}
.support-intro p{font-size:16px;line-height:1.85;color:var(--text-2);margin-bottom:24px}
.support-meta{display:flex;flex-direction:column;gap:12px}
.support-meta li{font-size:15px;line-height:1.75;color:var(--text-2);display:flex;gap:10px;align-items:flex-start}
.support-meta .dot{flex:0 0 7px;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-top:10px}

.support-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-sm);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:15px;line-height:1.5;color:var(--text-2)}
.field label .req{color:var(--err);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(74,58,140,.16);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--err)}
.err-msg{display:none;font-size:14px;line-height:1.5;color:var(--err)}
.field.error .err-msg{display:block}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.form-note{font-size:13px;line-height:1.6;color:var(--text-3)}
.form-success{
  grid-column:1 / -1;background:#EEF7F5;border:1px solid rgba(79,184,174,.4);
  color:#2F6F69;border-radius:var(--r-sm);padding:12px 14px;font-size:14px;line-height:1.7;
}
.form-success[hidden]{display:none}

/* ============ 页脚区 ============ */
.page-foot{padding:0 0 72px}
.page-foot-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  border-top:1px solid var(--line);padding-top:32px;
}
.page-foot p{font-size:15px;color:var(--text-2)}

/* ============ 站点页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;background:var(--ink);color:rgba(245,243,255,.72);
  padding:64px 0 28px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.08) .9px, transparent .9px),
    radial-gradient(circle, rgba(255,255,255,.05) .9px, transparent .9px),
    radial-gradient(circle, rgba(255,255,255,.035) .9px, transparent .9px);
  background-size:240px 240px,360px 360px,520px 520px;
  background-position:0 0,80px 120px,180px 60px;
}
.site-footer .container{position:relative}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{
  display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:600;color:#F5F3FF;margin-bottom:16px;
}
.footer-brand svg{width:22px;height:22px;flex:0 0 22px}
.footer-desc{font-size:15px;line-height:1.85;color:rgba(245,243,255,.72);max-width:40ch}
.footer-col h4{font-size:14px;font-weight:500;color:rgba(245,243,255,.72);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:4px}
.footer-col a{
  display:inline-flex;align-items:center;min-height:44px;font-size:15px;
  color:rgba(245,243,255,.72);transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--gold)}
.footer-contact li{
  display:flex;align-items:center;min-height:44px;font-size:15px;color:rgba(245,243,255,.72);
}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;line-height:1.6;color:rgba(245,243,255,.6);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:40px;height:40px;border-radius:50%;border:1px solid var(--primary);
  background:#fff;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--lilac)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .help-layout{grid-template-columns:240px 1fr;gap:36px}
}
@media (max-width:1024px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .help-layout{grid-template-columns:1fr;gap:32px}
  .side-nav{position:static}
  .side-panel{padding:16px}
  .side-panel ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .side-panel h3{display:none}
  .side-panel a{
    white-space:nowrap;padding:8px 14px;border-left:0;border-radius:999px;
    background:var(--bg);border:1px solid var(--line);
  }
  .side-panel a.active{border-color:var(--primary);background:var(--lilac)}
  .side-card{display:none}
  .support-card{grid-template-columns:1fr;gap:32px;padding:36px}
}
@media (max-width:900px){
  .nav-menu,.header-actions{display:none}
  .nav-toggle{display:inline-flex}
  .step-row{grid-template-columns:1fr;gap:24px}
  .step-row:nth-child(even) .step-media{order:0}
  .step-row{padding:28px 0}
}
@media (max-width:768px){
  .container{padding:0 24px}
  h2{font-size:24px}
  .hero-help{padding:48px 0 44px}
  .hero-help h1{font-size:30px}
  .hero-search{flex-direction:column;align-items:stretch;padding:10px}
  .hero-search input{width:100%}
  .hero-search .btn{width:100%}
  .quick-stats{padding:56px 0 0}
  .stats-grid{grid-template-columns:1fr;gap:16px}
  .help-main{padding:56px 0 64px}
  .faq-group{padding:4px 18px}
  .steps-section,.support-section{padding-bottom:56px}
  .form-grid{grid-template-columns:1fr}
  .support-card{padding:24px}
  .support-form{padding:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-desc{max-width:none}
  .site-footer{padding:48px 0 24px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  h2{font-size:22px}
  h3{font-size:19px}
  .stat-card{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .page-foot-inner{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;padding:16px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto !important}
}