/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg:#070B1A;
  --bg-2:#0C1226;
  --surface:#121A33;
  --surface-2:#16203D;
  --primary:#1CE0B4;
  --primary-dark:#0FA98A;
  --primary-soft:rgba(28,224,180,.12);
  --glow:rgba(28,224,180,.35);
  --accent:#FF6B35;
  --accent-soft:#FFB199;
  --accent-wash:rgba(255,107,53,.12);
  --text:#EAF1FB;
  --text-2:#9BACCA;
  --text-3:#6E7E9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-primary:rgba(28,224,180,.45);
  --glass:rgba(255,255,255,.05);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:0 2px 12px rgba(0,0,0,.35);
  --sh-hover:0 12px 32px rgba(0,0,0,.45);
  --sh-glow:0 8px 28px rgba(28,224,180,.28);
  --section:88px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote{margin:0;padding:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--text);}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,opacity .22s ease;}
a:hover{color:#5CF0CD;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font:inherit;}
::selection{background:rgba(28,224,180,.3);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

/* 覆盖 Foundation 默认 */
.button,.button:hover{background:none;color:inherit;}
.foundation-reset-note{display:none;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 通用元素 ============ */
.section{padding:var(--section) 0;position:relative;}
.section--alt{background:var(--bg-2);}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-soft);border:1px solid var(--line-primary);
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow i{font-size:9px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;max-width:680px;}
.section-head--center p{margin-left:auto;margin-right:auto;}
.text-accent{color:var(--accent);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:13px;}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04160F;
  box-shadow:0 0 0 1px rgba(28,224,180,.55) inset,var(--sh-glow);
}
.btn--primary:hover{color:#04160F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(28,224,180,.7) inset,0 12px 34px rgba(28,224,180,.4);}
.btn--primary:active{transform:translateY(0);filter:brightness(.96);}
.btn--ghost{
  background:transparent;color:var(--primary);border-color:var(--line-primary);
}
.btn--ghost:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--text{
  color:var(--text-2);font-weight:500;padding:10px 6px;
}
.btn--text:hover{color:var(--primary);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--block{display:flex;width:100%;}
.btn--accent{
  background:linear-gradient(135deg,var(--accent),#E85526);
  color:#FFF3ED;
  box-shadow:0 8px 26px rgba(255,107,53,.32);
}
.btn--accent:hover{color:#FFF3ED;filter:brightness(1.07);transform:translateY(-1px);}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge--primary{background:var(--primary-soft);color:var(--primary);border:1px solid var(--line-primary);}
.badge--accent{background:var(--accent-wash);color:var(--accent-soft);border:1px solid rgba(255,107,53,.35);}
.badge--muted{background:rgba(255,255,255,.06);color:var(--text-2);border:1px solid var(--line);}

/* ============ 页头 ============ */
.site-header{
  position:sticky;top:0;z-index:300;
  background:rgba(7,11,26,.7);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transition:background-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,26,.97);
  box-shadow:0 1px 0 var(--line),0 14px 34px rgba(0,0,0,.45);
}
.brandbar__inner{display:flex;align-items:center;gap:22px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:.01em;flex-shrink:0;}
.logo:hover{color:var(--text);}
.logo__mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04160F;font-size:15px;
  box-shadow:0 0 0 1px rgba(28,224,180,.5),0 8px 22px rgba(28,224,180,.28);
}
.logo__text{white-space:nowrap;}
.brandbar__actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-toggle{
  margin-left:auto;display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s 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);}

.channelbar{border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid var(--line);}
.channelbar__inner{display:flex;align-items:center;gap:8px;height:50px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-pill);
  color:var(--text-2);font-size:14.5px;font-weight:500;white-space:nowrap;
  border:1px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel i{font-size:12px;opacity:.85;}
.channel:hover{color:var(--text);background:rgba(255,255,255,.06);}
.channel.is-active{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04160F;font-weight:700;
  box-shadow:0 6px 18px rgba(28,224,180,.28);
}
.channel.is-active:hover{color:#04160F;}

.mobile-drawer{
  display:none;flex-direction:column;gap:6px;
  padding:14px 24px 24px;
  background:rgba(9,13,30,.99);
  border-bottom:1px solid var(--line);
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer__link{
  padding:13px 16px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15.5px;font-weight:500;
  border:1px solid transparent;
}
.mobile-drawer__link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.mobile-drawer__link.is-active{color:var(--primary);background:var(--primary-soft);border-color:var(--line-primary);}
.mobile-drawer .btn{margin-top:8px;}

/* ============ 首屏 ============ */
.hero{padding:76px 0 84px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(920px 500px at 10% -6%,rgba(28,224,180,.16),transparent 62%),
    radial-gradient(760px 440px at 92% 8%,rgba(255,107,53,.10),transparent 62%);
}
.hero__grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;}
.hero__title{font-size:clamp(28px,4vw,50px);line-height:1.22;margin-bottom:20px;}
.hero__title em{font-style:normal;color:var(--primary);}
.hero__sub{color:var(--text-2);font-size:17px;max-width:560px;margin-bottom:30px;}
.hero__cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero__facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:560px;}
.hero__fact{
  display:flex;align-items:flex-start;gap:11px;
  padding:14px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease;
}
.hero__fact:hover{border-color:var(--line-primary);transform:translateY(-2px);}
.hero__fact i{color:var(--primary);font-size:15px;margin-top:5px;}
.hero__fact strong{display:block;font-size:14.5px;font-weight:600;color:var(--text);line-height:1.5;}
.hero__fact span{font-size:13px;color:var(--text-3);}
.hero__visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:0 0 0 1px var(--line),0 30px 70px rgba(0,0,0,.55),0 0 70px rgba(28,224,180,.14);
}
.hero__visual img{width:100%;aspect-ratio:5/4;object-fit:cover;}
.hero__visual-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,26,.12) 0%,rgba(7,11,26,.6) 58%,rgba(7,11,26,.93) 100%);
}
.hero__float{
  position:absolute;left:20px;right:20px;bottom:20px;
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(12,18,38,.72);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.14);
}
.hero__float i{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-size:15px;flex-shrink:0;}
.hero__float strong{display:block;font-size:14.5px;color:var(--text);font-weight:600;}
.hero__float span{font-size:13px;color:var(--text-2);}

/* ============ 权益对比表 ============ */
.table-glass{
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.035);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;scrollbar-width:thin;}
.table-scroll::-webkit-scrollbar{height:6px;}
.table-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:6px;}
.benefit-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;margin:0;}
.benefit-table th,.benefit-table td{
  padding:16px 18px;text-align:center;font-size:14.5px;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.benefit-table thead th{
  background:rgba(255,255,255,.045);
  border-bottom:1px solid var(--line-2);
  padding-top:22px;padding-bottom:20px;
  position:relative;
}
.benefit-table thead th:first-child,.benefit-table tbody th{text-align:left;}
.benefit-table tbody th{
  font-weight:500;color:var(--text);font-size:14.5px;
  background:transparent;white-space:nowrap;
}
.benefit-table tbody tr:nth-child(even) td,
.benefit-table tbody tr:nth-child(even) th{background:rgba(255,255,255,.022);}
.benefit-table tbody tr:hover td,
.benefit-table tbody tr:hover th{background:rgba(28,224,180,.07);}
.benefit-table tbody tr:last-child th,
.benefit-table tbody tr:last-child td{border-bottom:0;}
.plan-name{display:block;font-size:16px;font-weight:700;color:var(--text);}
.plan-sub{display:block;font-size:12.5px;color:var(--text-3);margin-top:2px;}
.plan-badge{
  position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  padding:3px 14px;border-radius:0 0 10px 10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04160F;font-size:11.5px;font-weight:700;letter-spacing:.06em;
}
.benefit-table .is-featured{
  background:rgba(28,224,180,.07) !important;
  box-shadow:inset 1px 0 0 var(--line-primary),inset -1px 0 0 var(--line-primary);
}
.benefit-table thead .is-featured{background:rgba(28,224,180,.12) !important;}
.mark-yes{color:var(--primary);font-size:15px;}
.mark-part{color:var(--accent-soft);font-size:15px;}
.mark-no{color:var(--text-3);font-size:16px;}
.table-note{margin-top:16px;font-size:13.5px;color:var(--text-3);text-align:center;}

/* ============ 等级亮点 ============ */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.tier-card{
  position:relative;padding:30px 26px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 1px 0 rgba(255,255,255,.14) inset,var(--sh-card);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.tier-card:hover{transform:translateY(-4px);border-color:var(--line-primary);box-shadow:0 1px 0 rgba(255,255,255,.16) inset,var(--sh-hover);}
.tier-card--featured{border-color:var(--line-primary);background:rgba(28,224,180,.07);}
.tier-card__title{font-size:20px;margin:16px 0 6px;}
.tier-card__pitch{font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.tier-card ul{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;}
.tier-card li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.tier-card li i{color:var(--primary);font-size:13px;margin-top:6px;flex-shrink:0;}
.tier-card__price{font-size:14px;color:var(--text-3);margin-bottom:18px;}
.tier-card__price b{font-size:26px;color:var(--text);font-weight:700;margin-right:4px;}

/* ============ 内容预览 ============ */
.preview-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.pcard{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.pcard:hover{transform:translateY(-4px);border-color:var(--line-primary);box-shadow:var(--sh-hover);}
.pcard__media{position:relative;overflow:hidden;}
.pcard__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.pcard:hover .pcard__media img{transform:scale(1.05);}
.pcard__tag{position:absolute;top:12px;left:12px;}
.pcard__lock{
  position:absolute;top:12px;right:12px;
  width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  background:rgba(7,11,26,.72);color:var(--accent-soft);font-size:12px;
  border:1px solid rgba(255,107,53,.35);
}
.pcard__body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.pcard__title{font-size:17px;line-height:1.5;color:var(--text);font-weight:600;}
.pcard__desc{font-size:13.5px;color:var(--text-2);line-height:1.75;flex:1;}
.pcard__foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);}
.pcard__foot .go{color:var(--primary);font-weight:600;}
.pcard__foot .go i{font-size:11px;margin-left:5px;transition:transform .2s ease;}
.pcard:hover .pcard__foot .go i{transform:translateX(3px);}

/* ============ 最新信息（CMS 列表） ============ */
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:32px;align-items:start;}
.news-main-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap;}
.news-main-head h3{font-size:20px;}
.news-main-head span{font-size:13.5px;color:var(--text-3);}
.newslist{display:flex;flex-direction:column;gap:16px;}
.newscard{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:18px;
  padding:16px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--sh-card);color:inherit;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.newscard:hover{transform:translateY(-3px);border-color:var(--line-primary);box-shadow:var(--sh-hover);color:inherit;}
.newscard__thumb{border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);}
.newscard__thumb img{width:100%;height:100%;min-height:118px;object-fit:cover;transition:transform .5s ease;}
.newscard:hover .newscard__thumb img{transform:scale(1.06);}
.newscard__body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.newscard__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.newscard__meta .tag{
  padding:3px 11px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;border:1px solid var(--line-primary);
}
.newscard__meta .time{font-size:12.5px;color:var(--text-3);}
.newscard__title{font-size:16.5px;font-weight:600;color:var(--text);line-height:1.55;}
.newscard__desc{
  font-size:13.5px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.newscard__more{font-size:13px;color:var(--primary);font-weight:600;margin-top:auto;}
.newscard__more i{font-size:11px;margin-left:5px;}

.side-card{
  border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);
  padding:22px;box-shadow:var(--sh-card);margin-bottom:20px;
}
.side-card h4{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.side-card h4 i{color:var(--primary);font-size:14px;}
.rank-list{display:flex;flex-direction:column;gap:2px;}
.rank-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);}
.rank-list li:last-child{border-bottom:0;}
.rank-list .num{
  width:22px;height:22px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;
  font-size:12px;font-weight:700;background:rgba(255,255,255,.07);color:var(--text-3);
}
.rank-list li:nth-child(1) .num{background:var(--primary);color:#04160F;}
.rank-list li:nth-child(2) .num{background:rgba(28,224,180,.35);color:#04160F;}
.rank-list li:nth-child(3) .num{background:var(--accent-wash);color:var(--accent-soft);}
.rank-list a{font-size:14px;color:var(--text-2);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rank-list a:hover{color:var(--primary);}
.side-cta{
  border-radius:var(--r-md);padding:24px;
  background:linear-gradient(160deg,rgba(28,224,180,.14),rgba(255,107,53,.08)),var(--surface);
  border:1px solid var(--line-primary);
}
.side-cta h4{font-size:17px;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:18px;line-height:1.7;}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;border-radius:var(--r-md);
  background:var(--surface);border:1px dashed var(--line-2);text-align:center;
}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq__item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;
}
.faq__item:hover{border-color:var(--line-2);}
.faq__item.is-open{border-color:var(--line-primary);box-shadow:0 10px 30px rgba(0,0,0,.35);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  position:relative;
}
.faq__q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .24s ease;
}
.faq__item.is-open .faq__q::before{opacity:1;}
.faq__q i{color:var(--text-3);font-size:14px;transition:transform .28s ease,color .28s ease;flex-shrink:0;}
.faq__item.is-open .faq__q i{transform:rotate(45deg);color:var(--primary);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq__a p{padding:0 22px 22px 22px;color:var(--text-2);font-size:14.5px;line-height:1.85;}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:52px 48px;
  background:linear-gradient(135deg,#0B1330,#0E1A3A);
  border:1px solid var(--line-primary);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 20px 50px rgba(0,0,0,.45);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 320px at 88% 12%,rgba(28,224,180,.22),transparent 66%),
             radial-gradient(420px 240px at 4% 100%,rgba(255,107,53,.16),transparent 68%);
}
.cta-band__text{position:relative;max-width:620px;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{color:var(--text-2);font-size:15.5px;}
.cta-band__actions{position:relative;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:#050813;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--primary);border-color:var(--line-primary);background:var(--primary-soft);transform:translateY(-2px);}
.footer-col h5{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom span{font-size:13px;color:var(--text-3);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .preview-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  :root{--section:68px;}
  .hero__grid{grid-template-columns:1fr;gap:40px;}
  .hero__visual{order:-1;}
  .hero__visual img{aspect-ratio:16/9;}
  .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:900px){
  .brandbar__actions{display:none;}
  .nav-toggle{display:flex;}
  .brandbar__inner{height:62px;}
}
@media (max-width:768px){
  :root{--section:54px;}
  .container{padding-left:16px;padding-right:16px;}
  .hero{padding:52px 0 60px;}
  .hero__facts{grid-template-columns:1fr;}
  .hero__cta{flex-direction:column;align-items:stretch;}
  .hero__cta .btn{width:100%;}
  .tier-grid{grid-template-columns:1fr;}
  .preview-grid{grid-template-columns:1fr;}
  .newscard{grid-template-columns:1fr;}
  .newscard__thumb{max-height:180px;}
  .newscard__thumb img{min-height:0;height:180px;}
  .cta-band{padding:36px 24px;flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;flex-direction:column;align-items:stretch;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .logo__text{font-size:16px;}
  .hero__title{font-size:27px;}
  .section-head h2{font-size:23px;}
  .faq__q{font-size:15px;padding:17px 16px;}
  .faq__a p{padding:0 16px 18px 16px;}
  .table-note{text-align:left;}
}

/* roulang page: article */
:root{
  --bg:#070B1A;
  --bg-2:#0C1226;
  --surface:#121A33;
  --brand:#1CE0B4;
  --brand-deep:#0FA98A;
  --brand-glow:rgba(28,224,180,.35);
  --accent:#FF6B35;
  --accent-soft:#FFB199;
  --text:#EAF1FB;
  --text-2:#9BACCA;
  --text-3:#6E7E9C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(28,224,180,.45);
  --glass:rgba(255,255,255,.05);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 2px 12px rgba(0,0,0,.35);
  --shadow-2:0 12px 32px rgba(0,0,0,.45);
  --space-section:96px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Source Han Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 480px at 12% -8%,rgba(28,224,180,.14),transparent 62%),
    radial-gradient(760px 420px at 92% 4%,rgba(255,107,53,.10),transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover,a:focus{color:#5CF2D2;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#04211B;padding:10px 16px;border-radius:0 0 12px 0;z-index:99;}
.skip-link:focus{left:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;transition:background .25s ease,box-shadow .25s ease;}
.brandbar{background:rgba(7,11,26,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease;}
.site-header.is-scrolled .brandbar{background:rgba(7,11,26,.96);border-bottom-color:var(--line);}
.brandbar__inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:.01em;}
.logo:hover{color:var(--text);}
.logo__mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#04211B;font-size:15px;box-shadow:0 6px 18px var(--brand-glow);}
.logo__text{white-space:nowrap;}
.brandbar__actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.channelbar{border-bottom:1px solid var(--line);background:rgba(10,15,32,.6);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.channelbar__inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;color:var(--text-2);font-size:14px;white-space:nowrap;border:1px solid transparent;transition:all .2s ease;}
.channel i{font-size:13px;opacity:.85;}
.channel:hover{color:var(--text);background:rgba(255,255,255,.06);}
.channel.is-active{background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#04211B;font-weight:600;box-shadow:0 6px 18px var(--brand-glow);}
.channel.is-active i{opacity:1;}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);padding:11px 10px;flex-direction:column;justify-content:space-between;}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);}
.mobile-drawer{display:none;flex-direction:column;gap:6px;padding:14px 24px 22px;background:rgba(9,14,30,.98);border-bottom:1px solid var(--line);}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer__link{padding:11px 14px;border-radius:12px;color:var(--text-2);font-size:15px;}
.mobile-drawer__link.is-active,.mobile-drawer__link:hover{background:rgba(28,224,180,.12);color:var(--text);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;background:transparent;color:var(--text);transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;cursor:pointer;}
.btn--primary{background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#04211B;box-shadow:0 0 0 1px rgba(28,224,180,.5) inset,0 8px 28px var(--brand-glow);}
.btn--primary:hover{color:#04211B;transform:translateY(-1px);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(0);filter:brightness(.96);}
.btn--outline{border-color:rgba(28,224,180,.45);color:var(--brand);}
.btn--outline:hover{background:rgba(28,224,180,.12);color:var(--brand);transform:translateY(-1px);}
.btn--text{color:var(--text-2);padding:10px 6px;}
.btn--text:hover{color:var(--brand);}
.btn--sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn--block{width:100%;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;background:rgba(28,224,180,.14);color:var(--brand);border:1px solid rgba(28,224,180,.28);}
.badge--accent{background:rgba(255,107,53,.15);color:var(--accent-soft);border-color:rgba(255,107,53,.32);}

/* ---------- article layout ---------- */
.article-hero{position:relative;padding:44px 0 34px;background:linear-gradient(180deg,rgba(12,18,38,.2),rgba(7,11,26,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;border-bottom:1px solid var(--line);}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,26,.94) 0%,rgba(7,11,26,.72) 58%,rgba(7,11,26,.88) 100%);}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{width:14px;height:1px;background:rgba(255,255,255,.22);display:inline-block;}
.breadcrumb .current{color:var(--text-2);max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.28;max-width:900px;margin:16px 0 18px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--text-3);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .divider{width:1px;height:13px;background:var(--line);}

.article-main{padding:56px 0 var(--space-section);}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;}
.article-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:38px 40px 44px;box-shadow:var(--shadow-1);}
.article-figure{margin:0 0 30px;}
.article-figure img{border-radius:14px;width:100%;border:1px solid var(--line);}
.article-figure figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;}

.article-body{max-width:800px;font-size:17.5px;line-height:1.9;color:#D7E2F4;}
.article-body p{margin:0 0 1em;}
.article-body h2{font-size:clamp(22px,2.4vw,28px);margin:2em 0 .7em;padding-left:16px;position:relative;line-height:1.35;}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--brand-deep));}
.article-body h3{font-size:21px;margin:1.6em 0 .55em;color:var(--text);}
.article-body h4{font-size:18px;margin:1.4em 0 .5em;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.5em;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand-glow);}
.article-body ol{counter-reset:item;}
.article-body ol li::before{counter-increment:item;content:counter(item);position:absolute;left:0;top:.28em;width:19px;height:19px;border-radius:6px;background:rgba(28,224,180,.14);color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1;}
.article-body blockquote{margin:1.4em 0;padding:18px 22px;background:rgba(28,224,180,.06);border-left:4px solid var(--brand);border-radius:0 14px 14px 0;color:var(--text-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand);border-bottom:1px solid transparent;}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body img{border-radius:14px;margin:1.2em 0;border:1px solid var(--line);}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:1.4em 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15.5px;}
.article-body thead th{background:rgba(28,224,180,.10);color:var(--text);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.02);}
.article-body tbody tr:hover{background:rgba(28,224,180,.06);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:.92em;color:var(--brand);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0;}

.article-empty{text-align:center;padding:60px 20px;border:1px dashed rgba(255,255,255,.16);border-radius:var(--radius-lg);background:rgba(255,255,255,.02);}
.article-empty i{font-size:34px;color:var(--text-3);}
.article-empty h2{font-size:24px;margin:16px 0 10px;}
.article-empty p{color:var(--text-2);margin-bottom:22px;}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.article-tags .tag-label{font-size:13.5px;color:var(--text-3);margin-right:4px;}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:all .2s ease;}
.tag:hover{color:var(--brand);border-color:var(--line-strong);background:rgba(28,224,180,.08);}

.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13.5px;color:var(--text-3);}
.share-row a{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);}
.share-row a:hover{color:var(--brand);border-color:var(--line-strong);transform:translateY(-2px);}

/* ---------- sidebar ---------- */
.side-card{background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;margin-bottom:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);font-size:14px;}
.side-list li{padding:11px 0;border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{color:var(--text-2);font-size:14.5px;display:flex;gap:9px;align-items:flex-start;}
.side-list a:hover{color:var(--brand);}
.side-list .idx{color:var(--accent-soft);font-weight:700;font-size:13px;min-width:16px;}
.side-card--cta{background:linear-gradient(160deg,rgba(28,224,180,.14),rgba(255,107,53,.10));border-color:var(--line-strong);}
.side-card--cta p{color:var(--text-2);font-size:14px;margin:8px 0 16px;}

/* ---------- related ---------- */
.section{padding:var(--space-section) 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card__media img{transform:scale(1.05);}
.card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,26,0) 40%,rgba(7,11,26,.7));}
.card__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__title{font-size:17px;line-height:1.5;}
.card__title a{color:var(--text);}
.card__title a:hover{color:var(--brand);}
.card__desc{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:8px;border-top:1px solid var(--line);}
.card__foot .more{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ---------- prev / next ---------- */
.postnav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:var(--space-section);}
.postnav a{display:flex;flex-direction:column;gap:8px;padding:20px 22px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);transition:all .22s ease;}
.postnav a:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.postnav .label{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px;}
.postnav .title{font-size:16px;color:var(--text);font-weight:600;}
.postnav .next{align-items:flex-end;text-align:right;}
.back-row{display:flex;justify-content:center;margin-top:34px;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;margin-top:var(--space-section);border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(120deg,#0A1024,#0E1730);padding:44px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-band::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;background:radial-gradient(circle,rgba(28,224,180,.28),transparent 65%);pointer-events:none;}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px;}
.cta-band__actions{display:flex;align-items:center;gap:16px;position:relative;z-index:1;}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--space-section);background:#060A16;border-top:1px solid var(--line);padding:64px 0 26px;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin:16px 0 20px;max-width:340px;line-height:1.8;}
.footer-social{display:flex;gap:10px;}
.footer-social a{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);}
.footer-social a:hover{color:var(--brand);border-color:var(--line-strong);transform:translateY(-2px);}
.footer-col h5{font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a,.footer-col span{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--text-3);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space-section:72px;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .article-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .side-card{margin-bottom:0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-panel{padding:32px 30px 36px;}
}
@media (max-width:768px){
  :root{--space-section:56px;}
  .container{padding:0 16px;}
  .brandbar__actions{display:none;}
  .nav-toggle{display:flex;}
  .brandbar__inner{min-height:62px;gap:12px;}
  .logo{font-size:16.5px;}
  .article-hero{padding:30px 0 26px;}
  .article-meta{gap:8px 12px;}
  .article-meta .divider{display:none;}
  .article-body{font-size:16.5px;}
  .article-side{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;}
  .postnav{grid-template-columns:1fr;}
  .postnav .next{align-items:flex-start;text-align:left;}
  .cta-band{padding:30px 22px;}
  .cta-band__actions{width:100%;flex-direction:column;align-items:stretch;gap:12px;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .article-panel{padding:24px 18px 28px;border-radius:var(--radius-md);}
  .article-body{font-size:16px;}
  .article-hero h1{margin:12px 0 14px;}
  .badge{font-size:12px;padding:4px 10px;}
}

/* roulang page: category1 */
:root{
  --bg:#070B1A;
  --bg-2:#0C1226;
  --surface:#121A33;
  --surface-2:#16203D;
  --primary:#1CE0B4;
  --primary-dark:#0FA98A;
  --primary-glow:rgba(28,224,180,.35);
  --primary-soft:rgba(28,224,180,.12);
  --accent:#FF6B35;
  --accent-soft:#FFB199;
  --accent-bg:rgba(255,107,53,.14);
  --text:#EAF1FB;
  --text-2:#9BACCA;
  --text-3:#6E7E9C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(28,224,180,.45);
  --glass:rgba(255,255,255,.05);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-sm:0 2px 12px rgba(0,0,0,.35);
  --shadow-md:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 0 1px var(--primary) inset, 0 8px 28px var(--primary-glow);
  --container:1240px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{list-style:none;padding:0;}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--text);}
button{font-family:inherit;}
::selection{background:var(--primary-glow);color:#04121F;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:13px;}
.btn--primary{background:var(--primary);color:#04121F;box-shadow:var(--glow);}
.btn--primary:hover{background:#31EFC4;color:#04121F;transform:translateY(-1px);box-shadow:0 0 0 1px var(--primary) inset,0 12px 34px var(--primary-glow);}
.btn--primary:active{transform:translateY(0);background:var(--primary-dark);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--primary);}
.btn--ghost:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--text{background:transparent;color:var(--text-2);padding:10px 6px;font-weight:500;}
.btn--text:hover{color:var(--primary);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--block{width:100%;}
.btn--light{background:#FFFFFF;color:#0A1020;}
.btn--light:hover{background:#E9F2FF;color:#0A1020;transform:translateY(-1px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
}
.badge--primary{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(28,224,180,.28);}
.badge--accent{background:var(--accent-bg);color:var(--accent-soft);border:1px solid rgba(255,107,53,.3);}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:80;}
.brandbar{
  background:rgba(7,11,26,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease;
}
.site-header.is-scrolled .brandbar{background:rgba(7,11,26,.97);border-bottom-color:var(--line);}
.brandbar__inner{display:flex;align-items:center;gap:24px;min-height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04121F;font-size:16px;box-shadow:0 6px 18px var(--primary-glow);
}
.logo__text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.02em;}
.logo:hover .logo__text{color:var(--primary);}
.brandbar__actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s 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);}

.channelbar{border-bottom:1px solid var(--line);background:rgba(12,18,38,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.channelbar__inner{display:flex;align-items:center;gap:8px;min-height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--text-2);
  border:1px solid transparent;transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.channel i{font-size:12px;opacity:.85;}
.channel:hover{color:var(--text);background:rgba(255,255,255,.05);}
.channel.is-active{background:var(--primary-soft);color:var(--primary);border-color:rgba(28,224,180,.32);}

.mobile-drawer{
  display:none;flex-direction:column;gap:6px;
  padding:0 24px;max-height:0;overflow:hidden;
  background:rgba(7,11,26,.98);border-bottom:1px solid transparent;
  transition:max-height .32s ease,padding .32s ease,border-color .32s ease;
}
.mobile-drawer.is-open{max-height:420px;padding:16px 24px 22px;border-bottom-color:var(--line);}
.mobile-drawer__link{
  padding:12px 14px;border-radius:var(--r-sm);color:var(--text-2);font-size:15px;font-weight:500;
  border:1px solid transparent;
}
.mobile-drawer__link:hover{background:rgba(255,255,255,.05);color:var(--text);}
.mobile-drawer__link.is-active{background:var(--primary-soft);color:var(--primary);border-color:rgba(28,224,180,.3);}
.mobile-drawer .btn{margin-top:8px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:96px 0 84px;
  background-image:linear-gradient(115deg,rgba(7,11,26,.96) 0%,rgba(7,11,26,.86) 42%,rgba(7,11,26,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -60% 45%;height:520px;
  background:radial-gradient(circle,rgba(28,224,180,.22),transparent 62%);
  pointer-events:none;
}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4vw,50px);margin:20px 0 18px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero__lead{font-size:17px;color:var(--text-2);max-width:560px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0;}
.hero__facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:38px;}
.fact{
  display:flex;align-items:center;gap:11px;
  padding:13px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.fact i{color:var(--primary);font-size:15px;flex:0 0 auto;}
.hero__visual{position:relative;}
.hero__visual img{
  width:100%;border-radius:var(--r-lg);border:1px solid rgba(28,224,180,.28);
  box-shadow:0 24px 60px rgba(0,0,0,.55),0 0 42px rgba(28,224,180,.16);
  aspect-ratio:16/11;object-fit:cover;
}
.hero__visual figcaption{
  position:absolute;left:18px;bottom:18px;right:18px;
  padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(7,11,26,.78);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);backdrop-filter:blur(10px);
}

/* ============ 板块通用 ============ */
.section{padding:var(--sec) 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section__head{max-width:760px;margin-bottom:40px;}
.section__head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
.section__head p{color:var(--text-2);font-size:16px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 亮点卡 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.hl-card{
  padding:26px 24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.hl-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-md);}
.hl-card__icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.hl-card h3{font-size:19px;margin-bottom:10px;}
.hl-card p{font-size:14.5px;color:var(--text-2);}

/* ============ 筛选条 ============ */
.filterbar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);background:rgba(255,255,255,.04);
  border:1px solid var(--line);cursor:pointer;transition:all .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.2);}
.chip.is-active{background:var(--primary);color:#04121F;border-color:var(--primary);font-weight:600;box-shadow:0 8px 22px rgba(28,224,180,.28);}

/* ============ 内容卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-md);}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card__media img{transform:scale(1.05);}
.card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,26,0) 45%,rgba(7,11,26,.78));}
.card__tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:rgba(7,11,26,.72);color:var(--primary);
  border:1px solid rgba(28,224,180,.35);backdrop-filter:blur(8px);
}
.card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.card__title{font-size:18px;}
.card__text{font-size:14.5px;color:var(--text-2);flex:1;}
.card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
}
.meta{font-size:13px;color:var(--text-3);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 场景 ============ */
.scene{
  padding:26px 24px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(28,224,180,.08),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease;
}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.scene__top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.scene__num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-bg);color:var(--accent-soft);font-weight:700;font-size:15px;
}
.scene h3{font-size:18px;}
.scene p{font-size:14.5px;color:var(--text-2);}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:flow;}
.flow__item{
  position:relative;padding:28px 22px 24px;border-radius:var(--r-md);
  background:var(--surface-2);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.flow__item:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.flow__num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--primary);color:#04121F;font-weight:700;font-size:16px;margin-bottom:16px;
}
.flow__item h3{font-size:17px;margin-bottom:8px;}
.flow__item p{font-size:14.5px;color:var(--text-2);}
.flow__item::after{
  content:"";position:absolute;right:-13px;top:46px;width:18px;height:2px;
  background:linear-gradient(90deg,var(--primary),rgba(28,224,180,0));
}
.flow__item:last-child::after{display:none;}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq details{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);overflow:hidden;transition:border-color .25s ease,background-color .25s ease;
}
.faq details[open]{border-color:var(--line-strong);background:var(--surface-2);}
.faq summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px 18px 26px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform .26s ease;
}
.faq details[open] summary::before{transform:scaleY(1);}
.faq summary i{color:var(--primary);font-size:14px;transition:transform .28s ease;flex:0 0 auto;}
.faq details[open] summary i{transform:rotate(180deg);}
.faq__answer{padding:0 22px 20px 26px;font-size:15px;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;padding:0 0 var(--sec);
}
.cta-band__inner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:46px 44px;border-radius:26px;
  background:linear-gradient(120deg,#0B1330 0%,#111C3E 55%,#0A1128 100%);
  border:1px solid rgba(28,224,180,.3);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.cta-band__inner::before{
  content:"";position:absolute;top:-140px;left:-60px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(28,224,180,.24),transparent 66%);pointer-events:none;
}
.cta-band__inner::after{
  content:"";position:absolute;bottom:-160px;right:-40px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,107,53,.18),transparent 68%);pointer-events:none;
}
.cta-band__text{position:relative;z-index:1;max-width:640px;}
.cta-band__text h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:12px;}
.cta-band__text p{color:var(--text-2);font-size:15.5px;}
.cta-band__actions{position:relative;z-index:1;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:#04070F;border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:18px;max-width:360px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
  transition:all .22s ease;
}
.footer-social a:hover{color:var(--primary);border-color:var(--line-strong);background:var(--primary-soft);transform:translateY(-2px);}
.footer-col h5{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom span{font-size:13.5px;color:var(--text-3);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec:72px;}
  .hero__inner{grid-template-columns:1fr;gap:38px;}
  .hero__visual{order:-1;}
  .grid-4,.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow__item::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .container{padding:0 18px;}
  .brandbar__actions{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .channelbar{display:none;}
  .mobile-drawer{display:flex;}
  .hero{padding:64px 0 56px;}
  .hero__actions .btn{flex:1 1 100%;}
  .hero__facts{grid-template-columns:1fr;}
  .grid-4,.grid-3,.card-grid,.flow{grid-template-columns:1fr;}
  .cta-band__inner{padding:34px 24px;border-radius:20px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn--primary{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .section__head h2{font-size:22px;}
  .card__title{font-size:17px;}
  .faq summary{font-size:15.5px;padding:16px 18px 16px 20px;}
  .faq__answer{padding:0 18px 18px 20px;}
}

/* roulang page: category2 */
:root{
  --bg:#070B1A;
  --bg-2:#0C1226;
  --surface:#121A33;
  --primary:#1CE0B4;
  --primary-light:#5CF0CB;
  --primary-deep:#0FA98A;
  --primary-glow:rgba(28,224,180,.35);
  --accent:#FF6B35;
  --accent-soft:#FFB199;
  --text:#EAF1FB;
  --text-2:#9BACCA;
  --text-3:#6E7E9C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(28,224,180,.45);
  --glass:rgba(255,255,255,.05);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 2px 12px rgba(0,0,0,.35);
  --shadow-hover:0 12px 32px rgba(0,0,0,.45);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(28,224,180,.14), transparent 62%),
    radial-gradient(720px 460px at 4% 6%, rgba(255,107,53,.10), transparent 64%),
    var(--bg);
  min-height:100vh;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease}
a:hover{color:var(--primary-light)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:14px 24px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04211A;
  box-shadow:inset 0 0 0 1px rgba(28,224,180,.55),0 8px 28px var(--primary-glow);
}
.btn--primary:hover{
  color:#04211A;transform:translateY(-1px);
  box-shadow:inset 0 0 0 1px rgba(28,224,180,.7),0 12px 34px var(--primary-glow);
}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 0 0 1px rgba(28,224,180,.6),0 6px 18px var(--primary-glow)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--primary)}
.btn--ghost:hover{background:rgba(28,224,180,.12);color:var(--primary-light)}
.btn--text{background:none;border:0;color:var(--text-2);padding:10px 4px}
.btn--text:hover{color:var(--primary)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--block{width:100%}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.4;
  background:rgba(28,224,180,.12);color:var(--primary-light);
  border:1px solid rgba(28,224,180,.28);
}
.badge--accent{background:rgba(255,107,53,.14);color:var(--accent-soft);border-color:rgba(255,107,53,.32)}
.badge--muted{background:var(--glass);color:var(--text-2);border-color:var(--line)}

/* ===== 头部 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,11,26,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(7,11,26,.97);border-bottom-color:var(--line)}
.brandbar__inner{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.logo:hover{color:var(--text)}
.logo__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04211A;font-size:15px;box-shadow:0 6px 18px var(--primary-glow);
}
.logo__text{font-size:18px;letter-spacing:.01em}
.brandbar__actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);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(--text);transition:transform .25s ease,opacity .25s 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)}

.channelbar{border-top:1px solid var(--line);background:rgba(12,18,38,.62)}
.channelbar__inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel i{font-size:13px;opacity:.9}
.channel:hover{color:var(--text);background:var(--glass);border-color:var(--line)}
.channel.is-active{background:var(--primary);color:#04211A;font-weight:600;box-shadow:0 6px 20px var(--primary-glow)}
.channel.is-active:hover{color:#04211A;background:var(--primary-light)}

.mobile-drawer{
  display:none;flex-direction:column;gap:6px;
  padding:16px 24px 24px;background:rgba(12,18,38,.98);border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer__link{
  padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;transition:all .2s ease;
}
.mobile-drawer__link:hover{color:var(--text);background:var(--glass);border-color:var(--line)}
.mobile-drawer__link.is-active{color:#04211A;background:var(--primary);font-weight:600}
.mobile-drawer .btn{margin-top:10px}

/* ===== 内页横幅 ===== */
.page-hero{
  position:relative;
  padding:68px 0 58px;
  background-image:
    linear-gradient(180deg,rgba(7,11,26,.80) 0%,rgba(7,11,26,.94) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{display:inline-block;width:1px;height:12px;background:rgba(255,255,255,.18)}
.breadcrumb .current{color:var(--text)}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  max-width:900px;
  margin-bottom:16px;
}
.page-hero__sub{color:var(--text-2);font-size:17px;max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ===== 两栏主体 ===== */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 330px;
  gap:44px;align-items:start;
  padding:64px 0 80px;
}
.block{margin-bottom:56px}
.block:last-child{margin-bottom:0}
.block__head{margin-bottom:26px}
.block__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);margin-bottom:12px;text-transform:uppercase;
}
.block__head h2{font-size:clamp(22px,2.6vw,30px)}
.block__head p{margin-top:12px;color:var(--text-2);font-size:16px}

.prose p{font-size:17px;line-height:1.9;color:var(--text-2);margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--text);font-weight:600}

/* 要点列表 */
.list-check{margin:20px 0 0}
.list-check li{
  position:relative;padding:12px 0 12px 26px;
  color:var(--text-2);font-size:16px;line-height:1.8;
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.list-check li:last-child{border-bottom:0}
.list-check li::before{
  content:"";position:absolute;left:4px;top:21px;
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(28,224,180,.14);
}
.list-check li b{color:var(--text);font-weight:600}

/* 对比表 */
.table-wrap{
  margin-top:22px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  overflow-x:auto;box-shadow:var(--shadow);
}
.table-wrap table{width:100%;min-width:680px;border-collapse:collapse}
.table-wrap th,.table-wrap td{padding:15px 18px;text-align:left;font-size:14.5px;line-height:1.7;vertical-align:top}
.table-wrap thead th{
  background:rgba(28,224,180,.08);color:var(--text);
  font-weight:600;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.table-wrap tbody td{color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05)}
.table-wrap tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.table-wrap tbody tr:hover{background:rgba(28,224,180,.08)}
.table-wrap tbody tr:hover td{color:var(--text)}
.table-wrap tbody tr:last-child td{border-bottom:0}
.table-wrap td:first-child{color:var(--text);font-weight:600}

/* 图文 */
.figure{margin:24px 0 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.figure img{width:100%;border-radius:var(--radius) var(--radius) 0 0}
.figure figcaption{padding:12px 18px;font-size:13.5px;color:var(--text-3);border-top:1px solid var(--line)}

/* 步骤 */
.step-list{margin-top:22px;display:grid;gap:14px}
.step{
  display:grid;grid-template-columns:46px minmax(0,1fr);gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.step__num{
  font-size:22px;font-weight:700;color:var(--primary);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.step__body h3{font-size:18px;margin-bottom:8px}
.step__body p{color:var(--text-2);font-size:15.5px}

/* FAQ */
.faq{margin-top:22px}
.faq details{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--bg-2);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details:hover{border-color:rgba(255,255,255,.16)}
.faq details[open]{border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(28,224,180,.12),var(--shadow)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:16px;font-weight:600;color:var(--text);
  transition:background-color .2s ease,box-shadow .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:rgba(28,224,180,.06)}
.faq summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--primary);transition:transform .25s ease;flex:0 0 auto;
}
.faq details[open] summary{box-shadow:inset 3px 0 0 0 var(--primary)}
.faq details[open] summary::after{transform:rotate(180deg)}
.faq__body{padding:0 20px 18px 23px;color:var(--text-2);font-size:15.5px;line-height:1.85}

/* CTA 区块 */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:38px 40px;border-radius:var(--radius-lg);
  background:var(--bg-2);border:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:420px;height:420px;
  background:radial-gradient(circle,rgba(28,224,180,.20),transparent 68%);
  pointer-events:none;
}
.cta-band__text{position:relative;max-width:660px}
.cta-band__text h2{font-size:clamp(20px,2.4vw,27px);margin-bottom:12px}
.cta-band__text p{color:var(--text-2);font-size:16px}
.cta-band__actions{position:relative;display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* 侧栏 */
.layout__side .sticky{position:sticky;top:132px;display:grid;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.side-card:hover{border-color:rgba(255,255,255,.15)}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--primary);font-size:14px}
.toc{display:grid;gap:4px}
.toc a{
  display:block;padding:9px 12px;font-size:14px;color:var(--text-2);
  border-left:2px solid rgba(255,255,255,.1);border-radius:0 10px 10px 0;
  transition:all .2s ease;
}
.toc a:hover{color:var(--primary-light);border-left-color:var(--primary);background:rgba(28,224,180,.09)}
.summary-list{display:grid;gap:12px}
.summary-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.summary-list li i{color:var(--primary);font-size:12px;margin-top:7px;flex:0 0 auto}
.side-card--cta{background:linear-gradient(160deg,rgba(28,224,180,.12),rgba(18,26,51,.9));border-color:var(--line-strong)}
.side-card--cta p{color:var(--text-2);font-size:14.5px;margin:10px 0 16px}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:420px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:all .2s ease;
}
.footer-social a:hover{color:#04211A;background:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{color:var(--text-2);font-size:14.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  color:var(--text-3);font-size:13.5px;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .layout{grid-template-columns:1fr;gap:40px;padding:52px 0 68px}
  .layout__side .sticky{position:static;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .brandbar__actions{display:none}
  .nav-toggle{display:flex}
  .page-hero{padding:48px 0 42px}
  .page-hero__sub{font-size:16px}
  .block{margin-bottom:44px}
  .prose p{font-size:16px}
  .cta-band{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .logo__text{font-size:16px}
  .logo__mark{width:30px;height:30px;flex-basis:30px}
  .page-hero h1{font-size:26px}
  .step{grid-template-columns:36px minmax(0,1fr);padding:18px}
  .step__num{font-size:19px}
  .faq summary{font-size:15px;padding:15px 16px}
  .faq__body{padding:0 16px 16px 19px}
  .hero-tags .badge{font-size:12px}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --bg:#070B1A;
  --bg-2:#0C1226;
  --surface:#121A33;
  --surface-2:#16203D;
  --primary:#1CE0B4;
  --primary-dark:#0FA98A;
  --primary-glow:rgba(28,224,180,.35);
  --accent:#FF6B35;
  --accent-soft:#FFB199;
  --text:#EAF1FB;
  --text-2:#9BACCA;
  --text-3:#6E7E9C;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(28,224,180,.45);
  --glass:rgba(255,255,255,.05);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:0 2px 12px rgba(0,0,0,.35);
  --shadow-2:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(28,224,180,.5) inset, 0 8px 28px rgba(28,224,180,.3);
  --container:1240px;
  --sec-space:88px;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#5cf0cd}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;font-size:inherit;cursor:pointer;background:none;border:0;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
hr{border:0;border-top:1px solid var(--border);margin:0}
::selection{background:rgba(28,224,180,.3);color:#fff}

/* ===== 容器 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:200;width:100%}
.brandbar{
  background:rgba(7,11,26,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .brandbar{
  background:rgba(7,11,26,.97);
  border-bottom-color:var(--border);
  box-shadow:0 8px 26px rgba(0,0,0,.45);
}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.logo:hover{color:var(--text)}
.logo__mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#03211a;font-size:16px;
  box-shadow:0 6px 18px rgba(28,224,180,.28);
}
.logo__text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brandbar__actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
.nav-toggle:hover{border-color:var(--border-strong);background:rgba(28,224,180,.08)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.channelbar{background:rgba(9,14,32,.9);border-bottom:1px solid var(--border)}
.channelbar__inner{
  display:flex;align-items:center;gap:6px;height:50px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel i{font-size:12px;opacity:.85}
.channel:hover{color:var(--text);background:rgba(255,255,255,.06);border-color:var(--border)}
.channel.is-active{
  background:var(--primary);color:#04241d;font-weight:600;
  box-shadow:0 6px 18px rgba(28,224,180,.28);
}
.channel.is-active:hover{color:#04241d}

.mobile-drawer{
  display:none;position:absolute;top:100%;left:0;right:0;
  background:rgba(9,14,32,.99);
  border-bottom:1px solid var(--border);
  padding:16px 24px 24px;
  box-shadow:0 18px 40px rgba(0,0,0,.5);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer__link{
  display:block;padding:13px 14px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15px;border:1px solid transparent;
}
.mobile-drawer__link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.mobile-drawer__link.is-active{background:rgba(28,224,180,.12);border-color:var(--border-strong);color:var(--primary);font-weight:600}
.mobile-drawer .btn--block{margin-top:14px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn--primary{
  background:var(--primary);color:#04241d;
  box-shadow:0 0 0 1px rgba(28,224,180,.6) inset,0 8px 26px rgba(28,224,180,.32);
}
.btn--primary:hover{background:#3aecc3;color:#04241d;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(28,224,180,.7) inset,0 12px 32px rgba(28,224,180,.42)}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(28,224,180,.6) inset,0 6px 16px rgba(28,224,180,.25)}
.btn--ghost{background:transparent;color:var(--primary);border-color:var(--border-strong)}
.btn--ghost:hover{background:rgba(28,224,180,.12);color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(0)}
.btn--text{background:transparent;color:var(--text-2);padding:10px 8px;font-weight:500}
.btn--text:hover{color:var(--primary)}
.btn--text i{font-size:11px}
.btn--sm{padding:8px 16px;font-size:13.5px}
.btn--lg{padding:14px 30px;font-size:16px}
.btn--block{width:100%}

/* ===== 通用板块 ===== */
.section{padding:var(--sec-space) 0}
.section--tight{padding-top:64px;padding-bottom:64px}
.section--alt{background:var(--bg-2)}
.section__head{max-width:760px;margin-bottom:44px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary)}
.section__head--center .eyebrow::before{display:none}
.section__title{font-size:clamp(24px,3.2vw,34px);margin-bottom:14px}
.section__desc{color:var(--text-2);font-size:16px;line-height:1.85}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge--primary{background:rgba(28,224,180,.14);color:var(--primary);border:1px solid rgba(28,224,180,.3)}
.badge--accent{background:rgba(255,107,53,.15);color:var(--accent-soft);border:1px solid rgba(255,107,53,.34)}
.badge--muted{background:rgba(255,255,255,.06);color:var(--text-2);border:1px solid var(--border)}
.tag{
  display:inline-block;padding:3px 11px;border-radius:var(--r-sm);
  font-size:12.5px;font-weight:600;
  background:rgba(28,224,180,.12);color:var(--primary);
  border:1px solid rgba(28,224,180,.24);
}

/* ===== 面包屑 ===== */
.breadcrumb{padding:22px 0 0;font-size:13.5px;color:var(--text-3)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.breadcrumb__list li{display:inline-flex;align-items:center;gap:10px}
.breadcrumb__list li + li::before{content:"";width:14px;height:1px;background:var(--border);display:inline-block}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .is-current{color:var(--text)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:64px 0 78px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(7,11,26,.97) 0%,rgba(7,11,26,.9) 42%,rgba(12,18,38,.76) 100%);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(28,224,180,.22) 0%,rgba(28,224,180,0) 68%);
  pointer-events:none;
}
.hero__inner{position:relative;z-index:1}
.hero__grid{display:grid;grid-template-columns:1.45fr .85fr;gap:52px;align-items:center}
.hero__title{font-size:clamp(28px,4.4vw,48px);line-height:1.25;margin:18px 0 18px}
.hero__title em{font-style:normal;color:var(--primary)}
.hero__sub{color:var(--text-2);font-size:17px;max-width:640px;line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px}
.hero__stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;margin-top:42px;padding-top:30px;border-top:1px solid var(--border);
}
.stat{display:flex;align-items:flex-start;gap:10px}
.stat i{color:var(--primary);font-size:15px;margin-top:5px}
.stat__label{display:block;font-size:13px;color:var(--text-3);line-height:1.5}
.stat__value{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.5}

.hero__card{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  padding:28px 26px;
  box-shadow:var(--shadow-2);
}
.hero__card h3{font-size:19px;margin-bottom:6px}
.hero__card > p{color:var(--text-3);font-size:13.5px;margin-bottom:18px}
.hero__card ul li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.09);
  font-size:14.5px;color:var(--text-2);
}
.hero__card ul li:last-of-type{border-bottom:0}
.hero__card ul li b{color:var(--primary);font-weight:600;font-size:14.5px}
.hero__card .btn{margin-top:16px}

/* ===== 等级卡片 ===== */
.grade-grid{margin-left:-12px;margin-right:-12px}
.grade-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.grade-card{
  position:relative;height:100%;
  display:flex;flex-direction:column;
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.grade-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-2)}
.grade-card--hot{border-color:var(--border-strong);box-shadow:0 0 0 1px rgba(28,224,180,.3),0 14px 34px rgba(0,0,0,.45)}
.grade-card--hot::before{
  content:"推荐";position:absolute;top:-11px;left:24px;
  padding:3px 12px;border-radius:var(--r-pill);
  background:var(--accent);color:#2a0d02;font-size:12px;font-weight:700;
}
.grade-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.grade-card__name{font-size:19px;font-weight:700}
.grade-card__price{font-size:13px;color:var(--text-3);margin-top:2px}
.grade-card ul{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.grade-card ul li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.grade-card ul li i{color:var(--primary);font-size:13px;margin-top:6px;flex:0 0 auto}
.grade-card .btn{margin-top:auto}

/* ===== 时间线 ===== */
.timeline{position:relative;max-width:900px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:29px;top:14px;bottom:34px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(28,224,180,.45) 55%,rgba(28,224,180,.05) 100%);
  border-radius:2px;
}
.timeline__item{position:relative;display:flex;gap:26px;padding-bottom:34px}
.timeline__item:last-child{padding-bottom:0}
.timeline__num{
  position:relative;z-index:1;flex:0 0 60px;width:60px;height:60px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-2);border:1px solid var(--border-strong);
  color:var(--primary);font-size:17px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 0 7px var(--bg),0 8px 22px rgba(28,224,180,.18);
}
.timeline__body{
  flex:1 1 auto;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:border-color .25s ease,transform .25s ease;
}
.timeline__body:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.timeline__body h3{font-size:18px;margin-bottom:8px}
.timeline__body p{color:var(--text-2);font-size:15px;line-height:1.85}
.timeline__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ===== 场景图文 ===== */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:34px 0}
.scene + .scene{border-top:1px solid var(--border)}
.scene--reverse .scene__media{order:2}
.scene__media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-2);
  aspect-ratio:16/10;background:var(--surface);
}
.scene__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene__media:hover img{transform:scale(1.04)}
.scene__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,26,0) 45%,rgba(7,11,26,.7) 100%);
}
.scene__text h3{font-size:23px;margin:14px 0 12px}
.scene__text p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.scene__points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* ===== 权益清单 ===== */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.spec-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.spec-card:hover{border-color:var(--border-strong);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.spec-card__head{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.spec-card__head h3{font-size:19px}
.spec-list{display:flex;flex-direction:column;gap:12px}
.spec-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.spec-list li i{color:var(--primary);font-size:13px;margin-top:6px;flex:0 0 auto}

/* ===== FAQ ===== */
.faq{max-width:880px;margin:0 auto}
.faq__item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq__item + .faq__item{margin-top:12px}
.faq__item[open]{border-color:var(--border-strong);box-shadow:var(--shadow-1)}
.faq__q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px 18px 28px;font-size:16.5px;font-weight:600;color:var(--text);
  cursor:pointer;list-style:none;
}
.faq__q::-webkit-details-marker{display:none}
.faq__q::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:56%;
  background:var(--primary);border-radius:0 3px 3px 0;
  transform:translateY(-50%) scaleY(0);transform-origin:center;
  transition:transform .25s ease;
}
.faq__item[open] .faq__q::before{transform:translateY(-50%) scaleY(1)}
.faq__q:hover{color:var(--primary)}
.faq__icon{color:var(--primary);font-size:14px;transition:transform .25s ease;flex:0 0 auto}
.faq__item[open] .faq__icon{transform:rotate(45deg)}
.faq__a{padding:0 24px 22px 28px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ===== CTA 通栏 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:62px 0;
}
.cta-band::before{
  content:"";position:absolute;left:-120px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(28,224,180,.16) 0%,rgba(28,224,180,0) 70%);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-100px;bottom:-180px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(255,107,53,.12) 0%,rgba(255,107,53,0) 70%);
  pointer-events:none;
}
.cta-band__inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band__copy h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:10px}
.cta-band__copy p{color:var(--text-2);font-size:15.5px;max-width:620px}
.cta-band__actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:#050813;border-top:1px solid var(--border);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.9;max-width:360px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--text-2);font-size:14px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--primary);border-color:var(--border-strong);background:rgba(28,224,180,.1);transform:translateY(-2px)}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a,.footer-col li span{color:var(--text-3);font-size:14px}
.footer-col li a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom span{color:var(--text-3);font-size:13px}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  :root{--sec-space:76px}
}
@media (max-width:1023px){
  :root{--sec-space:66px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__card{max-width:560px}
  .spec-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .scene{gap:32px}
}
@media (max-width:767px){
  :root{--sec-space:54px}
  .container{padding:0 16px}
  .brandbar__inner{height:62px}
  .brandbar__actions{display:none}
  .nav-toggle{display:flex}
  .channelbar__inner{height:46px}
  .hero{padding:44px 0 56px}
  .hero__stats{grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
  .hero__actions .btn{flex:1 1 auto}
  .section__head{margin-bottom:32px}
  .scene{grid-template-columns:1fr;gap:22px;padding:26px 0}
  .scene--reverse .scene__media{order:0}
  .spec-grid{grid-template-columns:1fr}
  .timeline::before{left:21px}
  .timeline__item{gap:18px}
  .timeline__num{flex:0 0 44px;width:44px;height:44px;font-size:15px;box-shadow:0 0 0 5px var(--bg)}
  .timeline__body{padding:18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:48px 0}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .faq__q{font-size:15.5px;padding:16px 18px 16px 22px}
  .faq__a{padding:0 18px 20px 22px}
}
@media (max-width:519px){
  .logo__text{font-size:15px}
  .hero__title{font-size:27px}
  .section__title{font-size:23px}
  .hero__stats{grid-template-columns:1fr}
  .grade-grid{margin-left:0;margin-right:0}
  .grade-grid > .cell{padding-left:0;padding-right:0}
}