/* roulang page: index */
:root{
  --bg-900:#060B12;
  --bg-800:#0A121C;
  --bg-700:#0E1822;
  --brand-500:#16E0B8;
  --brand-600:#0BB894;
  --brand-300:#6BF0D5;
  --violet:#7C5CFF;
  --amber:#FFB43A;
  --t1:#EAF2F5;
  --t2:#9FB0BC;
  --t3:#66788A;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --r-sm:12px;
  --r-card:18px;
  --r-lg:22px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(22,224,184,.35), 0 12px 40px -10px rgba(22,224,184,.45);
  --pad-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background-color:var(--bg-900);
  background-image:radial-gradient(900px 520px at 82% -12%,rgba(22,224,184,.08),transparent 70%),radial-gradient(760px 460px at -5% 34%,rgba(124,92,255,.07),transparent 70%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0}
.y9-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.y9-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.y9-container{max-width:1280px}}
.y9-section{padding:var(--pad-section) 0;position:relative}
.y9-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.y9-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--brand-300);text-transform:uppercase;margin-bottom:14px}
.y9-eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent)}
.y9-sec-head h2{font-size:34px}
.y9-sec-desc{max-width:460px;color:var(--t2);font-size:15px}
.y9-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.y9-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* 按钮 */
.y9-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease;white-space:nowrap;line-height:1}
.y9-btn-primary{background:linear-gradient(135deg,#16E0B8,#0BB894);color:#04140F;box-shadow:0 10px 26px -10px rgba(22,224,184,.65)}
.y9-btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,184,.35),0 16px 40px -10px rgba(22,224,184,.55);color:#04140F}
.y9-btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -6px rgba(22,224,184,.5)}
.y9-btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--t1)}
.y9-btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);color:var(--t1)}
.y9-btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.y9-btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-500);font-size:14px;font-weight:600;min-height:auto;padding:0}
.y9-btn-link i{font-size:12px;transition:transform .2s ease}
.y9-btn-link:hover{color:var(--brand-300)}
.y9-btn-link:hover i{transform:translateX(3px)}

/* 徽章 / 标签 */
.y9-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:500;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);color:var(--t2)}
.y9-pill-brand{border-color:rgba(22,224,184,.38);background:rgba(22,224,184,.08);color:var(--brand-300)}
.y9-pill-amber{border-color:rgba(255,180,58,.38);background:rgba(255,180,58,.08);color:var(--amber)}
.y9-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 0 rgba(22,224,184,.6);animation:y9-pulse 2.4s ease-out infinite}
.y9-dot-amber{background:var(--amber);box-shadow:none;animation:none}
@keyframes y9-pulse{0%{box-shadow:0 0 0 0 rgba(22,224,184,.55)}70%{box-shadow:0 0 0 8px rgba(22,224,184,0)}100%{box-shadow:0 0 0 0 rgba(22,224,184,0)}}
.y9-tag{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;background:rgba(255,180,58,.14);border:1px solid rgba(255,180,58,.4);color:var(--amber);font-weight:600}

/* 顶部条 */
.y9-header{position:sticky;top:0;z-index:1040}
.y9-topbar{background:#04080E;border-bottom:1px solid var(--line-soft);font-size:13px}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:32px;gap:16px}
.y9-topbar-left{display:flex;align-items:center;gap:18px;color:var(--t2)}
.y9-status{display:inline-flex;align-items:center;gap:8px;color:var(--brand-300)}
.y9-topbar-right{display:flex;align-items:center;gap:16px;color:var(--t2)}
.y9-topbar-right b{color:var(--amber);font-weight:700}
.y9-topbar-cta{color:var(--brand-300);font-weight:600}
.y9-topbar-cta:hover{color:var(--brand-500)}
@media (max-width:991px){.y9-topbar-left .y9-topbar-tip{display:none}}

/* 主导航 */
.y9-nav{background:rgba(6,11,18,.86);border-bottom:1px solid var(--line-soft);backdrop-filter:blur(10px);transition:background .25s ease,border-color .25s ease}
.y9-header.is-compact .y9-nav{background:rgba(6,11,18,.94);border-bottom-color:var(--line);backdrop-filter:blur(16px) saturate(130%)}
.y9-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;transition:min-height .25s ease}
.y9-header.is-compact .y9-nav-inner{min-height:60px}
.y9-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.y9-logo-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:800;font-size:17px;color:#04140F;background:linear-gradient(135deg,var(--brand-500),var(--violet));box-shadow:0 6px 18px -8px rgba(22,224,184,.8)}
.y9-logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--t1)}
.y9-menu{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.y9-menu a{position:relative;display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--t2);border:1px solid transparent;transition:all .2s ease}
.y9-menu a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-500);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.y9-menu a:hover{color:var(--t1);border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.04)}
.y9-menu a.active{color:var(--t1)}
.y9-menu a.active::after{transform:scaleX(1)}
.y9-menu .y9-badge{font-size:11px;line-height:1;padding:3px 7px;border-radius:999px;background:rgba(255,180,58,.14);border:1px solid rgba(255,180,58,.4);color:var(--amber);font-weight:600}
.y9-nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.y9-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.y9-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1)}
@media (max-width:1199px){.y9-menu a{padding:10px 10px;font-size:14px}}
@media (max-width:991px){
  .y9-menu{display:none}
  .y9-nav-actions .y9-btn-ghost{display:none}
  .y9-burger{display:flex}
}

/* 抽屉 */
.y9-drawer{background:var(--bg-800);color:var(--t1);width:320px;border-left:1px solid var(--line)}
.y9-drawer .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 20px}
.y9-drawer .offcanvas-body{padding:20px}
.y9-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.y9-drawer-links{display:flex;flex-direction:column;gap:6px;margin:18px 0 24px}
.y9-drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03);font-size:15px;color:var(--t2)}
.y9-drawer-links a.active{color:var(--t1);border-color:rgba(22,224,184,.4);background:rgba(22,224,184,.07)}
.y9-drawer-links a:hover{color:var(--t1);border-color:rgba(22,224,184,.4)}
.y9-drawer-cd{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line-soft);margin-bottom:18px;font-size:14px;color:var(--t2)}
.y9-drawer-cd b{color:var(--amber);font-size:18px;font-weight:800}

/* Hero */
.y9-hero{position:relative;overflow:hidden;padding:84px 0 76px;min-height:600px;display:flex;align-items:center}
.y9-hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;z-index:0}
.y9-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(92deg,rgba(6,11,18,.97) 0%,rgba(6,11,18,.9) 44%,rgba(6,11,18,.6) 100%)}
.y9-hero-grid{position:absolute;inset:0;z-index:1;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:16px 16px}
.y9-hero-beam{position:absolute;top:-35%;right:-12%;width:58%;height:170%;z-index:1;background:linear-gradient(100deg,transparent 36%,rgba(22,224,184,.13) 50%,transparent 64%);transform:rotate(12deg);pointer-events:none}
.y9-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;width:100%}
.y9-hero-copy h1{font-size:50px;font-weight:800;line-height:1.2;margin:20px 0 18px}
.y9-hero-copy h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand-300),var(--brand-500) 60%,var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.y9-hero-sub{font-size:17px;color:var(--t2);max-width:560px;line-height:1.9}
.y9-hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 36px}
.y9-metrics{display:flex;flex-wrap:wrap;gap:36px;padding-top:26px;border-top:1px solid var(--line-soft)}
.y9-metrics li{display:flex;flex-direction:column;gap:2px}
.y9-metrics b{font-size:28px;font-weight:800;color:var(--brand-300);line-height:1.2}
.y9-metrics span{font-size:13px;color:var(--t3)}

.y9-glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);box-shadow:var(--sh-2)}
.y9-cd-card{padding:28px}
.y9-cd-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.y9-cd-head h2{font-size:17px;font-weight:700}
.y9-cd-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.y9-cd-cell{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:14px 6px 10px;text-align:center}
.y9-cd-num{font-size:44px;font-weight:800;line-height:1;color:var(--brand-300);font-variant-numeric:tabular-nums}
.y9-cd-label{font-size:12px;color:var(--t3);margin-top:6px}
.y9-cd-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin:22px 0 12px}
.y9-cd-bar i{display:block;height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--violet));transition:width .8s linear}
.y9-cd-note{font-size:13px;color:var(--t3)}
@media (max-width:991px){
  .y9-hero{padding:56px 0 56px;min-height:auto}
  .y9-hero-inner{grid-template-columns:1fr;gap:34px}
  .y9-hero-copy h1{font-size:30px;margin:16px 0 14px}
  .y9-hero-sub{font-size:15px}
  .y9-cd-num{font-size:34px}
  .y9-metrics{gap:24px}
  .y9-metrics b{font-size:22px}
}

/* 优惠阶梯 */
.y9-ladder{display:flex;flex-direction:column;gap:16px}
.y9-ladder-item{display:grid;grid-template-columns:96px 1fr auto;gap:26px;align-items:center;padding:24px 28px;border-radius:var(--r-card);border:1px solid var(--line-soft);background:var(--glass);transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.y9-ladder-item:nth-child(1){max-width:76%}
.y9-ladder-item:nth-child(2){max-width:85%}
.y9-ladder-item:nth-child(3){max-width:93%}
.y9-ladder-item:nth-child(4){max-width:100%;border-color:rgba(22,224,184,.45);background:linear-gradient(120deg,rgba(22,224,184,.09),rgba(22,224,184,.02));box-shadow:var(--sh-glow)}
.y9-ladder-item:hover{transform:translateX(4px);border-color:rgba(22,224,184,.5)}
.y9-ladder-no{font-size:32px;font-weight:800;color:rgba(255,255,255,.16);font-variant-numeric:tabular-nums;line-height:1}
.y9-ladder-item:nth-child(4) .y9-ladder-no{color:rgba(22,224,184,.55)}
.y9-ladder-body h3{font-size:19px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.y9-ladder-cond{font-size:13px;color:var(--t3);margin-bottom:12px}
.y9-ladder-list{display:flex;flex-wrap:wrap;gap:8px 20px}
.y9-ladder-list li{position:relative;padding-left:16px;font-size:14px;color:var(--t2)}
.y9-ladder-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-500);opacity:.7}
@media (max-width:991px){
  .y9-ladder-item{grid-template-columns:64px 1fr;gap:16px;padding:20px;max-width:100%!important}
  .y9-ladder-item .y9-btn-link{grid-column:2;justify-self:start}
  .y9-ladder-no{font-size:24px}
}

/* 套餐对照表 */
.y9-table-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:rgba(10,18,28,.5)}
.y9-table{width:100%;border-collapse:separate;border-spacing:0}
.y9-table thead th{position:sticky;top:0;z-index:2;background:rgba(10,18,28,.95);backdrop-filter:blur(10px);padding:18px 20px;text-align:left;font-size:14px;font-weight:600;color:var(--t2);border-bottom:1px solid var(--line);white-space:nowrap}
.y9-table tbody td{padding:18px 20px;font-size:15px;color:var(--t2);border-bottom:1px solid var(--line-soft);vertical-align:middle}
.y9-table tbody tr:last-child td{border-bottom:0}
.y9-table tbody td:first-child{color:var(--t1);font-weight:600}
.y9-table tbody tr:hover td{background:rgba(255,255,255,.025)}
.y9-table .y9-col-best{background:rgba(22,224,184,.06);color:var(--t1)}
.y9-table thead .y9-col-best{color:var(--brand-300)}
.y9-table-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px}
.y9-table-foot p{font-size:13px;color:var(--t3)}
@media (max-width:991px){
  .y9-table-wrap{border:0;background:transparent;overflow:visible}
  .y9-table thead{display:none}
  .y9-table,.y9-table tbody,.y9-table tr,.y9-table td{display:block;width:100%}
  .y9-table tr{border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);padding:8px 6px;margin-bottom:16px}
  .y9-table tbody td{display:flex;justify-content:space-between;gap:18px;border-bottom:1px dashed var(--line-soft);padding:12px 14px}
  .y9-table tbody td:last-child{border-bottom:0}
  .y9-table tbody td::before{content:attr(data-label);color:var(--t3);font-size:13px;flex:0 0 auto}
  .y9-table tbody tr:hover td{background:transparent}
  .y9-table .y9-col-best{background:rgba(22,224,184,.06);border-radius:12px}
}

/* 限时入口 */
.y9-flash{position:relative;overflow:hidden;border-top:1px solid rgba(22,224,184,.25);border-bottom:1px solid rgba(22,224,184,.25);background:rgba(22,224,184,.06)}
.y9-flash-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;opacity:.22}
.y9-flash::before,.y9-flash::after{content:"";position:absolute;top:0;bottom:0;width:120px;pointer-events:none}
.y9-flash::before{left:0;background:linear-gradient(90deg,rgba(22,224,184,.16),transparent)}
.y9-flash::after{right:0;background:linear-gradient(270deg,rgba(22,224,184,.16),transparent)}
.y9-flash-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:34px 0}
.y9-flash h2{font-size:26px;margin-bottom:10px}
.y9-flash-info{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.y9-flash-info span{font-size:14px;color:var(--t2)}
.y9-flash-cd{display:flex;align-items:baseline;gap:6px;font-size:44px;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1}
.y9-flash-cd small{font-size:14px;font-weight:600;color:var(--t2);margin-right:6px}
@media (max-width:991px){
  .y9-flash-inner{flex-direction:column;align-items:flex-start;gap:20px;padding:28px 0}
  .y9-flash-cd{font-size:34px}
  .y9-flash h2{font-size:21px}
}

/* 最新信息 */
.y9-news-grid{display:grid;grid-template-columns:1.62fr 1fr;gap:28px;align-items:start}
.y9-news-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.y9-news-card{display:flex;flex-direction:column;border:1px solid var(--line-soft);border-radius:var(--r-card);background:var(--glass);overflow:hidden;transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease}
.y9-news-card:hover{border-color:rgba(22,224,184,.5);transform:translateY(-3px);box-shadow:var(--sh-2)}
.y9-news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-700)}
.y9-news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.y9-news-card:hover .y9-news-thumb img{transform:scale(1.03)}
.y9-news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.y9-news-body h3{font-size:17px;font-weight:700;color:var(--t1)}
.y9-news-card:hover h3{color:var(--brand-300)}
.y9-news-body p{font-size:14px;color:var(--t2)}
.y9-news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--t3)}
.y9-news-meta .y9-chip{padding:2px 10px;border-radius:999px;font-size:12px;color:var(--brand-300);background:rgba(22,224,184,.08);border:1px solid rgba(22,224,184,.28)}
.y9-timeline{border:1px solid var(--line-soft);border-radius:var(--r-card);background:var(--glass);padding:26px 24px 8px}
.y9-timeline h3{font-size:15px;color:var(--t2);font-weight:600;margin-bottom:20px;display:flex;align-items:center;gap:8px}
.y9-timeline-list{position:relative;padding-left:20px;border-left:1px solid var(--line)}
.y9-timeline-item{position:relative;padding-bottom:22px;display:block}
.y9-timeline-item::before{content:"";position:absolute;left:-25px;top:9px;width:9px;height:9px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 4px rgba(22,224,184,.14)}
.y9-timeline-item strong{display:block;font-size:14.5px;font-weight:600;color:var(--t1);margin-bottom:4px}
.y9-timeline-item:hover strong{color:var(--brand-300)}
.y9-timeline-item span{font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums}
.y9-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:48px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.02);grid-column:1/-1}
.y9-empty i{font-size:44px;color:var(--t3)}
.y9-empty p{color:var(--t2);font-size:15px}
@media (max-width:991px){
  .y9-news-grid{grid-template-columns:1fr}
  .y9-news-cards{grid-template-columns:1fr}
}

/* 服务保障与反馈 */
.y9-proof{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.y9-proof-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.y9-proof-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.y9-proof-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,18,0) 40%,rgba(6,11,18,.72))}
.y9-proof-media figcaption{position:absolute;left:22px;right:22px;bottom:20px;z-index:2;font-size:13px;color:var(--t2)}
.y9-proof-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:26px}
.y9-stat{padding:22px;border-radius:var(--r-card);border:1px solid var(--line-soft);background:var(--glass)}
.y9-stat b{display:block;font-size:30px;font-weight:800;color:var(--brand-300);line-height:1.2;font-variant-numeric:tabular-nums}
.y9-stat span{font-size:13px;color:var(--t3)}
.y9-quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.y9-quote{padding:22px;border-radius:var(--r-card);border:1px solid var(--line-soft);background:rgba(255,255,255,.03)}
.y9-quote p{font-size:14.5px;color:var(--t2)}
.y9-quote footer{margin-top:14px;font-size:13px;color:var(--t3)}
@media (max-width:991px){
  .y9-proof{grid-template-columns:1fr;gap:32px}
  .y9-quotes{grid-template-columns:1fr}
  .y9-stat b{font-size:24px}
}

/* FAQ */
.y9-accordion{max-width:900px}
.y9-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line-soft)}
.y9-accordion .accordion-button{background:transparent;color:var(--t1);font-size:16.5px;font-weight:600;padding:22px 48px 22px 0;box-shadow:none;border-radius:0;position:relative}
.y9-accordion .accordion-button::after{display:none}
.y9-accordion .accordion-button::before{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--t3);transition:transform .18s ease,color .18s ease}
.y9-accordion .accordion-button:not(.collapsed){color:var(--brand-300)}
.y9-accordion .accordion-button:not(.collapsed)::before{content:"\f068";color:var(--brand-500);transform:translateY(-50%) rotate(180deg)}
.y9-accordion .accordion-button:hover{color:var(--brand-300)}
.y9-accordion .accordion-body{padding:0 48px 24px 0;color:var(--t2);font-size:15px;line-height:1.85;max-width:820px}

/* 表单 */
.y9-form-wrap{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.y9-form-points{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.y9-form-points li{display:flex;gap:12px;font-size:15px;color:var(--t2)}
.y9-form-points i{color:var(--brand-500);margin-top:6px;font-size:13px}
.y9-form-card{padding:30px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(14px);box-shadow:var(--sh-2)}
.y9-field{margin-bottom:18px}
.y9-field label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:8px}
.y9-input{width:100%;min-height:46px;padding:10px 14px;border-radius:var(--r-sm);background:rgba(6,11,18,.72);border:1px solid var(--line);color:var(--t1);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.y9-input::placeholder{color:var(--t3)}
.y9-input:focus{outline:none;border-color:rgba(22,224,184,.7);box-shadow:0 0 0 3px rgba(22,224,184,.16)}
textarea.y9-input{min-height:110px;resize:vertical;line-height:1.7}
select.y9-input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t3) 50%),linear-gradient(135deg,var(--t3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.y9-check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--t2);margin:6px 0 20px}
.y9-check input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-500)}
.y9-form-note{font-size:12.5px;color:var(--t3);margin-top:14px}
.y9-form-msg{margin-top:14px;font-size:14px;color:var(--brand-300);display:none}
.y9-form-msg.show{display:block}
@media (max-width:991px){
  .y9-form-wrap{grid-template-columns:1fr;gap:28px}
  .y9-form-card{padding:22px}
}

/* CTA 收尾 */
.y9-cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid rgba(22,224,184,.28);background:linear-gradient(120deg,rgba(22,224,184,.1),rgba(124,92,255,.08));padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.y9-cta-band h2{font-size:28px;margin-bottom:10px}
.y9-cta-band p{font-size:15px;color:var(--t2);max-width:560px}
.y9-cta-actions{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:768px){
  .y9-cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px}
  .y9-cta-band h2{font-size:22px}
}

/* 页脚 */
.y9-footer{margin-top:24px;background:var(--bg-900);border-top:1px solid transparent;position:relative}
.y9-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,224,184,.55),transparent)}
.y9-footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding:64px 0 44px}
.y9-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.y9-footer-brand .y9-logo-mark{width:32px;height:32px;font-size:16px}
.y9-footer p{font-size:14px;color:var(--t3);line-height:1.9}
.y9-footer h3{font-size:15px;color:var(--t1);margin-bottom:16px;font-weight:600}
.y9-footer-links{display:flex;flex-direction:column;gap:10px}
.y9-footer-links a{font-size:14px;color:var(--t2);display:inline-flex;align-items:center;gap:8px;transition:transform .2s ease,color .2s ease}
.y9-footer-links a:hover{color:var(--brand-300);transform:translateX(2px)}
.y9-footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--t2)}
.y9-footer-contact li{display:flex;gap:10px;align-items:flex-start}
.y9-footer-contact i{color:var(--brand-500);margin-top:6px;font-size:13px}
.y9-footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:20px 0 28px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--t3)}
.y9-back-top{display:inline-flex;align-items:center;gap:8px;color:var(--t2)}
.y9-back-top:hover{color:var(--brand-300)}
@media (max-width:991px){
  .y9-footer-top{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px}
}
@media (max-width:600px){
  .y9-footer-top{grid-template-columns:1fr}
}

/* 移动端底部固定 CTA */
.y9-mobile-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:1050;height:56px;padding:8px 14px;gap:10px;background:rgba(6,11,18,.96);border-top:1px solid var(--line);backdrop-filter:blur(12px)}
.y9-mobile-cta .y9-btn{flex:1;min-height:40px;font-size:14px}
@media (max-width:991px){
  .y9-mobile-cta{display:flex}
  body{padding-bottom:56px}
}

@media (max-width:1199px){:root{--pad-section:72px}}
@media (max-width:991px){:root{--pad-section:60px}.y9-sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}.y9-sec-head h2{font-size:25px}.y9-sec-desc{max-width:100%}}
@media (max-width:576px){
  :root{--pad-section:48px}
  .y9-hero-copy h1{font-size:26px}
  .y9-sec-head h2{font-size:22px}
  .y9-cd-num{font-size:30px}
  .y9-topbar-right .y9-count-mini{display:none}
  .y9-accordion .accordion-button{font-size:15px;padding:18px 40px 18px 0}
  .y9-accordion .accordion-body{padding:0 20px 20px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg-900:#060B12;
  --bg-800:#0A121C;
  --bg-700:#0E1822;
  --brand-500:#16E0B8;
  --brand-600:#0BB894;
  --brand-300:#6BF0D5;
  --accent-violet:#7C5CFF;
  --accent-amber:#FFB43A;
  --t1:#EAF2F5;
  --t2:#9FB0BC;
  --t3:#66788A;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --line-brand:rgba(22,224,184,.35);
  --r-card:18px;
  --r-card-lg:22px;
  --r-btn:12px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(22,224,184,.35),0 12px 40px -10px rgba(22,224,184,.45);
  --container:1200px;
  --pad-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--t1);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.7;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-300);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.y9-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.y9-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:1400px){.y9-container{max-width:1280px}}
.y9-section{padding:var(--pad-y) 0;position:relative}
.y9-section-head{max-width:760px;margin-bottom:48px}
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-300);font-weight:700;margin-bottom:14px;
}
.y9-eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-500);display:block}
.y9-h2{font-size:34px;margin-bottom:14px}
.y9-h3{font-size:21px;font-weight:600;line-height:1.4}
.y9-lead{color:var(--t2);font-size:16px;max-width:720px}
.y9-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(22,224,184,.28),transparent)}

/* ============ 顶部细条 ============ */
.y9-topbar{background:var(--bg-800);border-bottom:1px solid var(--line-soft);font-size:13px;color:var(--t2)}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;height:32px;gap:16px}
.y9-topbar-left{display:flex;align-items:center;gap:18px;min-width:0}
.y9-topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.y9-status{display:inline-flex;align-items:center;gap:7px;color:var(--brand-300);font-weight:600;white-space:nowrap}
.y9-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 0 rgba(22,224,184,.6);animation:y9Pulse 2.4s infinite}
@keyframes y9Pulse{
  0%{box-shadow:0 0 0 0 rgba(22,224,184,.55)}
  70%{box-shadow:0 0 0 8px rgba(22,224,184,0)}
  100%{box-shadow:0 0 0 0 rgba(22,224,184,0)}
}
.y9-topbar-tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.y9-count-mini b{color:var(--accent-amber);font-weight:700;letter-spacing:.04em}
.y9-topbar-cta{color:var(--brand-300);font-weight:600;white-space:nowrap}
.y9-topbar-cta:hover{color:var(--brand-500)}

/* ============ 主导航 ============ */
.y9-header{position:sticky;top:0;z-index:1030}
.y9-nav{
  background:rgba(6,11,18,.86);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line-soft);
  transition:height .25s ease,background-color .25s ease;
}
.y9-nav-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.y9-header.is-stuck .y9-nav-inner{height:60px}
.y9-header.is-stuck .y9-nav{background:rgba(6,11,18,.94);box-shadow:var(--sh-1)}
.y9-logo{display:inline-flex;align-items:center;gap:11px;flex:none;color:var(--t1);font-weight:800}
.y9-logo:hover{color:var(--t1)}
.y9-logo-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  display:grid;place-items:center;
  font-size:19px;font-weight:800;color:#04140F;
  background:linear-gradient(135deg,var(--brand-300),var(--brand-600) 62%,var(--accent-violet));
  box-shadow:0 6px 18px -6px rgba(22,224,184,.7);
}
.y9-logo-text{font-size:19px;letter-spacing:-.01em;white-space:nowrap}
.y9-menu{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.y9-menu li{position:relative}
.y9-menu a{
  display:inline-flex;align-items:center;gap:6px;
  padding:0 14px;height:72px;line-height:72px;
  color:var(--t2);font-size:15px;font-weight:500;position:relative;
  transition:color .2s ease;
}
.y9-header.is-stuck .y9-menu a{height:60px;line-height:60px}
.y9-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));
  border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.y9-menu a:hover{color:var(--t1)}
.y9-menu a:hover::after{transform:scaleX(.5)}
.y9-menu a.active{color:var(--t1);font-weight:700}
.y9-menu a.active::after{transform:scaleX(1)}
.y9-menu a.active::before{
  content:"";position:absolute;left:7px;top:50%;margin-top:-2px;
  width:4px;height:4px;border-radius:50%;background:var(--brand-300);
  box-shadow:0 0 8px 2px rgba(22,224,184,.7);
}
.y9-badge{
  font-size:11px;line-height:1;padding:3px 7px;border-radius:999px;
  color:var(--accent-amber);background:rgba(255,180,58,.10);
  border:1px solid rgba(255,180,58,.36);font-weight:700;
}
.y9-nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.y9-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.y9-burger span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .2s ease}
.y9-burger:hover{border-color:var(--line-brand);background:rgba(255,255,255,.04)}

/* ============ 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  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;
  white-space:nowrap;
}
.y9-btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.y9-btn-primary{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#04140F;box-shadow:0 0 0 1px rgba(22,224,184,.30),0 10px 26px -12px rgba(22,224,184,.75);
}
.y9-btn-primary:hover{color:#04140F;filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,184,.45),0 16px 34px -12px rgba(22,224,184,.9)}
.y9-btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 0 0 1px rgba(22,224,184,.3),0 6px 14px -8px rgba(22,224,184,.6)}
.y9-btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--t1)}
.y9-btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);color:var(--t1)}
.y9-btn-link{background:none;border:0;padding:0;min-height:auto;color:var(--brand-300);font-weight:700;font-size:14.5px}
.y9-btn-link::after{content:"→";margin-left:6px;transition:transform .2s ease;display:inline-block}
.y9-btn-link:hover{color:var(--brand-500)}
.y9-btn-link:hover::after{transform:translateX(4px)}
.y9-btn-block{width:100%}
.y9-btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:2px;border-radius:var(--r-btn);
}

/* ============ 页头 ============ */
.y9-page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 60px;
  background:
    linear-gradient(90deg,rgba(6,11,18,.96) 0%,rgba(6,11,18,.78) 46%,rgba(6,11,18,.92) 100%),
    linear-gradient(160deg,rgba(22,224,184,.10),transparent 52%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line-soft);
}
.y9-page-hero::after{
  content:"";position:absolute;top:-30%;right:-10%;width:52%;height:170%;
  background:linear-gradient(100deg,rgba(107,240,213,.14),rgba(124,92,255,.08) 55%,transparent 78%);
  transform:rotate(12deg);pointer-events:none;filter:blur(2px);
}
.y9-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px}
.y9-crumbs a{color:var(--t2)}
.y9-crumbs a:hover{color:var(--brand-300)}
.y9-crumbs .sep{color:var(--t3);opacity:.6}
.y9-crumbs .current{color:var(--t3)}
.y9-page-hero h1{font-size:48px;font-weight:800;max-width:820px;margin-bottom:16px}
.y9-page-hero .y9-lead{font-size:17px;max-width:660px;color:var(--t2)}
.y9-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px}
.y9-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.y9-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--t2);
}
.y9-chip i{color:var(--brand-500);font-size:11px}
.y9-chip.is-amber{border-color:rgba(255,180,58,.34);background:rgba(255,180,58,.08);color:#FFD59A}

/* ============ 渠道栅格 ============ */
.y9-grid-asym{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.y9-feature{
  position:relative;overflow:hidden;
  border-radius:var(--r-card-lg);
  border:1px solid var(--line);
  background:var(--bg-700);
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.y9-feature:hover{border-color:var(--line-brand);transform:translateY(-4px);box-shadow:var(--sh-2)}
.y9-feature-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.y9-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.y9-feature:hover .y9-feature-media img{transform:scale(1.04)}
.y9-feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,.10) 0%,rgba(6,11,18,.86) 100%);
}
.y9-feature-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:14px;flex:1}
.y9-feature-tag{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;
  color:#04140F;background:linear-gradient(135deg,var(--brand-300),var(--brand-500));
}
.y9-feature h3{font-size:22px;font-weight:700}
.y9-points{display:flex;flex-direction:column;gap:9px}
.y9-points li{display:flex;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.7}
.y9-points li i{color:var(--brand-500);font-size:12px;margin-top:8px;flex:none}
.y9-feature-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.y9-meta{font-size:13px;color:var(--t3)}

.y9-grid-sm{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:24px}
.y9-mini{
  padding:24px;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--glass);
  display:flex;flex-direction:column;gap:12px;
  transition:border-color .24s ease,background-color .24s ease,transform .24s ease;
}
.y9-mini:hover{border-color:var(--line-brand);background:rgba(22,224,184,.05);transform:translateY(-3px)}
.y9-mini .ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-size:17px;color:var(--brand-300);
  background:rgba(22,224,184,.09);border:1px solid rgba(22,224,184,.24);
}
.y9-mini h3{font-size:17px;font-weight:700}
.y9-mini p{font-size:14px;color:var(--t2);line-height:1.75}
.y9-mini .y9-meta{margin-top:auto;padding-top:8px}

/* ============ 指标条 ============ */
.y9-metrics{
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(14,24,34,.85),rgba(6,11,18,.85));
}
.y9-metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.y9-metric{padding:30px 26px;border-left:1px solid var(--line-soft);}
.y9-metric:first-child{border-left:0;padding-left:0}
.y9-metric .val{font-size:46px;font-weight:800;line-height:1.1;color:var(--t1);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.y9-metric .val small{font-size:18px;color:var(--brand-300);margin-left:4px;font-weight:700}
.y9-metric .lbl{font-size:14px;color:var(--t2);margin-top:8px}
.y9-metric .sub{font-size:13px;color:var(--t3);margin-top:4px}

/* ============ 图文分栏 ============ */
.y9-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px;align-items:center}
.y9-split-media{position:relative;border-radius:var(--r-card-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.y9-split-media img{aspect-ratio:4/3;width:100%;object-fit:cover}
.y9-split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(22,224,184,.12),transparent 58%)}
.y9-scene-list{display:flex;flex-direction:column;gap:0;margin-top:26px}
.y9-scene{display:flex;gap:18px;padding:20px 0;border-top:1px solid var(--line-soft)}
.y9-scene:last-child{border-bottom:1px solid var(--line-soft)}
.y9-scene .idx{
  flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-size:14px;font-weight:800;color:var(--brand-300);
  background:rgba(22,224,184,.08);border:1px solid rgba(22,224,184,.22);
  font-variant-numeric:tabular-nums;
}
.y9-scene h3{font-size:17px;font-weight:600;margin-bottom:6px}
.y9-scene p{font-size:14.5px;color:var(--t2);line-height:1.75}
.y9-scene .tag{display:inline-block;margin-top:8px;font-size:12.5px;color:var(--accent-amber)}

/* ============ FAQ ============ */
.y9-faq-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:52px;align-items:start}
.y9-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line-soft)}
.y9-accordion .accordion-item:first-child{border-top:1px solid var(--line-soft)}
.y9-accordion .accordion-button{
  background:transparent;color:var(--t1);font-size:17px;font-weight:600;
  padding:22px 46px 22px 0;box-shadow:none;border-radius:0;line-height:1.6;
}
.y9-accordion .accordion-button:not(.collapsed){color:var(--brand-300);background:rgba(22,224,184,.04)}
.y9-accordion .accordion-button:hover{color:var(--brand-300)}
.y9-accordion .accordion-button::after{
  content:"";background-image:none;width:11px;height:11px;flex:none;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(45deg);transition:transform .18s ease;margin-left:auto;
  position:absolute;right:8px;top:calc(50% - 7px);
}
.y9-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.y9-accordion .accordion-body{
  padding:0 60px 24px 0;color:var(--t2);font-size:15px;line-height:1.85;max-width:820px;
}

/* ============ CTA ============ */
.y9-cta-card{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:0;border-radius:var(--r-card-lg);overflow:hidden;
  border:1px solid var(--line-brand);
  background:
    radial-gradient(120% 160% at 0% 0%,rgba(22,224,184,.14),transparent 55%),
    linear-gradient(180deg,rgba(14,24,34,.95),rgba(6,11,18,.95));
  box-shadow:var(--sh-2);
}
.y9-cta-left{padding:44px 42px;border-right:1px solid var(--line-soft)}
.y9-cta-left h2{font-size:30px;margin-bottom:14px}
.y9-cta-left .y9-points{margin-top:22px}
.y9-cta-right{padding:38px 42px}
.y9-form{display:flex;flex-direction:column;gap:18px}
.y9-field{display:flex;flex-direction:column;gap:8px}
.y9-field label{font-size:13.5px;color:var(--t2);font-weight:600}
.y9-field input{
  height:50px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.y9-field input::placeholder{color:var(--t3)}
.y9-field input:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(22,224,184,.16);
  background:rgba(255,255,255,.06);
}
.y9-field input.is-error{border-color:#FF8A6B;box-shadow:0 0 0 3px rgba(255,138,107,.16)}
.y9-hint{font-size:12.5px;color:var(--t3)}
.y9-err{font-size:12.5px;color:#FF9B7E}
.y9-check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--t2);line-height:1.6}
.y9-check input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand-500);flex:none}
.y9-form-msg{font-size:13.5px;color:var(--brand-300)}
.y9-service-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-300);
  border:1px solid rgba(22,224,184,.32);background:rgba(22,224,184,.08);
  padding:6px 14px;border-radius:999px;font-weight:600;
}

/* ============ 页脚 ============ */
.y9-footer{position:relative;background:var(--bg-900);border-top:1px solid var(--line-soft);padding:64px 0 0;z-index:1}
.y9-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.55),transparent);
}
.y9-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.y9-footer h4{font-size:14px;color:var(--t1);letter-spacing:.06em;margin-bottom:18px;font-weight:700}
.y9-footer-brand .y9-logo{margin-bottom:16px}
.y9-footer-brand p{font-size:14px;color:var(--t2);line-height:1.8;max-width:320px}
.y9-footer-links{display:flex;flex-direction:column;gap:11px}
.y9-footer-links a{font-size:14px;color:var(--t2);display:inline-block;transition:color .2s ease,transform .2s ease}
.y9-footer-links a:hover{color:var(--brand-300);transform:translateX(2px)}
.y9-footer-links a.active{color:var(--brand-300);font-weight:700}
.y9-footer-contact li{font-size:14px;color:var(--t2);display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.y9-footer-contact i{color:var(--brand-500);margin-top:6px;font-size:13px;flex:none}
.y9-footer-bottom{
  border-top:1px solid var(--line-soft);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);
}
.y9-footer-bottom a{color:var(--t2)}
.y9-footer-bottom a:hover{color:var(--brand-300)}

/* ============ 移动抽屉 ============ */
.y9-drawer{background:var(--bg-800);color:var(--t1);width:min(88vw,360px);border-left:1px solid var(--line)}
.y9-drawer .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 22px}
.y9-drawer .offcanvas-body{padding:22px}
.y9-drawer-nav{display:flex;flex-direction:column;gap:4px}
.y9-drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;color:var(--t2);font-size:15.5px;font-weight:500;
}
.y9-drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1)}
.y9-drawer-nav a.active{color:var(--brand-300);background:rgba(22,224,184,.09);font-weight:700}
.y9-drawer-foot{margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);display:flex;flex-direction:column;gap:14px}
.y9-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}

/* ============ 移动底部 CTA 条 ============ */
.y9-mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;padding:0 14px;gap:10px;align-items:center;justify-content:space-between;
  background:rgba(6,11,18,.95);backdrop-filter:blur(12px);
  border-top:1px solid var(--line-soft);
}
.y9-mobile-bar .txt{font-size:13.5px;color:var(--t2)}
.y9-mobile-bar .txt b{color:var(--accent-amber);font-variant-numeric:tabular-nums}

/* ============ 响应式 ============ */
@media(max-width:1399px){
  :root{--container:1140px}
}
@media(max-width:1199px){
  .y9-menu a{padding:0 11px;font-size:14.5px}
  .y9-grid-sm{grid-template-columns:repeat(2,minmax(0,1fr))}
  .y9-page-hero h1{font-size:40px}
  .y9-split{gap:36px}
  .y9-faq-wrap{gap:36px}
}
@media(max-width:991px){
  :root{--pad-y:64px}
  .y9-menu,.y9-nav-actions .y9-btn-ghost{display:none}
  .y9-burger{display:flex}
  .y9-nav-actions{gap:8px}
  .y9-topbar-left .y9-topbar-tip{display:none}
  .y9-page-hero{padding:48px 0 46px}
  .y9-page-hero h1{font-size:34px}
  .y9-h2{font-size:28px}
  .y9-grid-asym{grid-template-columns:1fr}
  .y9-split{grid-template-columns:1fr;gap:32px}
  .y9-faq-wrap{grid-template-columns:1fr;gap:28px}
  .y9-cta-card{grid-template-columns:1fr}
  .y9-cta-left{border-right:0;border-bottom:1px solid var(--line-soft);padding:34px 28px}
  .y9-cta-right{padding:30px 28px}
  .y9-metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .y9-metric{padding:24px 20px;border-left:1px solid var(--line-soft)}
  .y9-metric:nth-child(odd){border-left:0;padding-left:0}
  .y9-metric:nth-child(n+3){border-top:1px solid var(--line-soft)}
  .y9-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .y9-mobile-bar{display:flex}
  .y9-footer{padding-bottom:56px}
}
@media(max-width:575px){
  :root{--pad-y:48px}
  body{font-size:16px}
  .y9-topbar-right .y9-count-mini{display:none}
  .y9-logo-text{font-size:17px}
  .y9-logo-mark{width:34px;height:34px;font-size:17px}
  .y9-page-hero h1{font-size:28px}
  .y9-h2{font-size:24px}
  .y9-h3{font-size:19px}
  .y9-metric .val{font-size:36px}
  .y9-grid-sm{grid-template-columns:1fr}
  .y9-feature-body{padding:22px 20px 24px}
  .y9-accordion .accordion-button{font-size:15.5px;padding:18px 40px 18px 0}
  .y9-accordion .accordion-body{padding:0 24px 20px 0;font-size:14.5px}
  .y9-footer-grid{grid-template-columns:1fr}
  .y9-cta-left h2{font-size:24px}
  .y9-hero-actions .y9-btn{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .y9-dot{animation:none}
}

/* roulang page: article */
:root{
  --bg-900:#060B12;
  --bg-800:#0A121C;
  --bg-700:#0E1822;
  --brand-500:#16E0B8;
  --brand-600:#0BB894;
  --brand-300:#6BF0D5;
  --violet:#7C5CFF;
  --amber:#FFB43A;
  --t1:#EAF2F5;
  --t2:#9FB0BC;
  --t3:#66788A;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --line-brand:rgba(22,224,184,.35);
  --shadow-1:0 4px 16px rgba(0,0,0,.28);
  --shadow-2:0 12px 32px rgba(0,0,0,.38);
  --glow:0 0 0 1px rgba(22,224,184,.35),0 12px 40px -10px rgba(22,224,184,.45);
  --r-card:18px;
  --r-card-lg:22px;
  --r-btn:12px;
  --r-input:12px;
  --section-pad:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg-900);
  color:var(--t1);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:16px 16px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
::selection{background:rgba(22,224,184,.28);color:#fff;}
.y9-num,.y9-body-num{font-variant-numeric:tabular-nums;}

.y9-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
@media(min-width:1400px){.y9-container{max-width:1280px;}}

/* ============ 头部 ============ */
.y9-header{position:sticky;top:0;z-index:1030;}
.y9-topbar{
  background:#050A10;
  border-bottom:1px solid rgba(255,255,255,.06);
  font-size:13px;
  color:var(--t2);
  height:32px;
  display:flex;
  align-items:center;
  position:relative;
  z-index:2;
}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.y9-topbar-left{display:flex;align-items:center;gap:18px;min-width:0;}
.y9-status{display:inline-flex;align-items:center;gap:8px;color:var(--brand-300);white-space:nowrap;}
.y9-dot{
  width:6px;height:6px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 0 0 rgba(22,224,184,.6);
  animation:y9Pulse 2.2s ease-out infinite;
}
@keyframes y9Pulse{
  0%{box-shadow:0 0 0 0 rgba(22,224,184,.55);}
  70%{box-shadow:0 0 0 8px rgba(22,224,184,0);}
  100%{box-shadow:0 0 0 0 rgba(22,224,184,0);}
}
.y9-topbar-tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.y9-topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.y9-count-mini b{color:var(--amber);font-weight:700;letter-spacing:.02em;}
.y9-topbar-cta{
  color:var(--brand-300);
  border-bottom:1px solid rgba(22,224,184,.45);
  padding-bottom:1px;
}
.y9-topbar-cta:hover{color:#fff;border-color:#fff;}

.y9-nav{
  height:72px;
  background:rgba(6,11,18,.88);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease,border-color .25s ease;
  position:relative;
  z-index:1;
}
.y9-header.y9-scrolled .y9-nav{height:60px;background:rgba(6,11,18,.94);}
.y9-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}

.y9-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.y9-logo-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--violet),var(--brand-500));
  color:#04120F;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px -6px rgba(22,224,184,.6);
}
.y9-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--t1);white-space:nowrap;}

.y9-menu{display:flex;align-items:center;gap:26px;margin:0;padding:0;list-style:none;}
.y9-menu a{
  position:relative;
  font-size:15px;
  color:var(--t2);
  padding:6px 0;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.y9-menu a:hover{color:var(--t1);}
.y9-menu a.active{color:var(--t1);}
.y9-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-500);
  box-shadow:0 0 12px rgba(22,224,184,.85);
}
.y9-badge{
  display:inline-block;font-size:11px;line-height:1;padding:3px 7px;border-radius:999px;
  color:var(--amber);border:1px solid rgba(255,180,58,.45);background:rgba(255,180,58,.10);
}
.y9-nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  padding:11px 20px;
  min-height:44px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.y9-btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
.y9-btn-primary{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#04120F;
  box-shadow:0 10px 26px -12px rgba(22,224,184,.85);
  position:relative;
  overflow:hidden;
}
.y9-btn-primary::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);
  transform:skewX(-18deg);
  animation:y9Sheen 4.5s ease-in-out infinite;
}
@keyframes y9Sheen{
  0%,62%{left:-120%;}
  82%{left:130%;}
  100%{left:130%;}
}
.y9-btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 32px -12px rgba(22,224,184,.95);}
.y9-btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(22,224,184,.7);}
.y9-btn-ghost{
  background:transparent;color:var(--t1);border-color:rgba(255,255,255,.14);
}
.y9-btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);color:#fff;}
.y9-btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-500);
  outline-offset:2px;
  border-radius:8px;
}
.y9-btn-link{
  color:var(--brand-300);font-weight:600;display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid rgba(22,224,184,.35);padding-bottom:2px;
}
.y9-btn-link:hover{color:#fff;border-color:#fff;}

.y9-burger{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.y9-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);}

/* 抽屉 */
.y9-drawer{
  background:var(--bg-800) !important;
  border-left:1px solid var(--line) !important;
  color:var(--t1);
  width:320px !important;
}
.y9-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.y9-drawer .offcanvas-body{padding:20px;}
.y9-drawer-close{filter:invert(1) grayscale(1) brightness(1.8);opacity:.65;}
.y9-drawer-menu{margin:18px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;}
.y9-drawer-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 2px;border-bottom:1px solid rgba(255,255,255,.07);
  color:var(--t2);font-size:16px;
}
.y9-drawer-menu a:hover,.y9-drawer-menu a.active{color:var(--brand-300);}
.y9-drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.y9-drawer-cta .y9-btn{width:100%;}

/* ============ 页面头部（文章头） ============ */
.y9-article-head{
  position:relative;
  padding:46px 0 44px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background-image:
    linear-gradient(180deg,rgba(6,11,18,.88),rgba(6,11,18,.97)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.y9-article-head::after{
  content:"";position:absolute;top:-50%;right:-12%;width:58%;height:200%;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.10),transparent);
  transform:rotate(12deg);
  pointer-events:none;
}
.y9-breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--t3);
}
.y9-breadcrumb a{color:var(--t2);}
.y9-breadcrumb a:hover{color:var(--brand-300);}
.y9-breadcrumb .sep{color:rgba(255,255,255,.22);}
.y9-breadcrumb-current{
  color:var(--t3);
  max-width:360px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:inline-block;vertical-align:bottom;
}
.y9-head-main{
  margin-top:22px;
  display:flex;align-items:flex-start;justify-content:space-between;gap:28px;
}
.y9-head-text{min-width:0;}
.y9-head-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.y9-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:6px 12px;border-radius:999px;
  border:1px solid var(--line-brand);
  background:rgba(22,224,184,.08);
  color:var(--brand-300);
}
.y9-tag-amber{
  border-color:rgba(255,180,58,.42);
  background:rgba(255,180,58,.10);
  color:var(--amber);
}
.y9-article-head h1{
  font-size:42px;
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.01em;
  color:var(--t1);
  max-width:900px;
}
.y9-meta-row{
  margin-top:18px;
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;
  font-size:13.5px;color:var(--t3);
}
.y9-meta-row .y9-meta-item{display:inline-flex;align-items:center;gap:7px;}
.y9-meta-row i{color:var(--brand-500);font-size:13px;}
.y9-head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* ============ 通用板块 ============ */
.y9-section{padding:var(--section-pad) 0;position:relative;}
.y9-section-tight{padding:56px 0;}
.y9-section-head{max-width:720px;margin-bottom:40px;}
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.08em;color:var(--brand-300);
  text-transform:uppercase;margin-bottom:14px;
}
.y9-eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-500);}
.y9-section-head h2{font-size:34px;font-weight:700;line-height:1.28;color:var(--t1);}
.y9-section-head p{margin-top:14px;color:var(--t2);font-size:16px;}

.y9-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  position:relative;
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease,background .24s ease;
  height:100%;
}
.y9-card:hover{
  border-color:var(--line-brand);
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  background:var(--glass-2);
}
.y9-card h3{font-size:20px;font-weight:600;color:var(--t1);margin-bottom:12px;}
.y9-card p{color:var(--t2);font-size:15px;}

/* ============ 文章正文布局 ============ */
.y9-article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 250px;
  gap:52px;
  align-items:start;
}
.y9-article{
  max-width:800px;
  width:100%;
  margin:0 auto;
  min-width:0;
}
.y9-article-body{
  font-size:17px;
  line-height:1.9;
  color:#D5E1E7;
  word-break:break-word;
}
.y9-article-body > * + *{margin-top:1.2em;}
.y9-article-body h2{
  position:relative;
  font-size:29px;
  font-weight:700;
  line-height:1.36;
  color:var(--t1);
  padding-left:16px;
  margin-top:2.1em;
  scroll-margin-top:110px;
  letter-spacing:-.005em;
}
.y9-article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand-500),var(--brand-600));
  box-shadow:0 0 14px rgba(22,224,184,.55);
}
.y9-article-body h3{
  font-size:21px;
  font-weight:600;
  color:var(--t1);
  margin-top:1.8em;
  line-height:1.5;
  scroll-margin-top:110px;
}
.y9-article-body h4{font-size:18px;font-weight:600;color:var(--t1);margin-top:1.5em;}
.y9-article-body p{color:#C8D6DE;}
.y9-article-body strong{color:#fff;font-weight:700;}
.y9-article-body a{
  color:var(--brand-300);
  border-bottom:1px solid rgba(22,224,184,.4);
  padding-bottom:1px;
}
.y9-article-body a:hover{color:#fff;border-color:#fff;}
.y9-article-body ul,.y9-article-body ol{margin:1.2em 0;padding-left:0;}
.y9-article-body ul li,.y9-article-body ol li{
  position:relative;
  padding-left:26px;
  margin-top:.7em;
  color:#C8D6DE;
}
.y9-article-body ul li::before{
  content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);
  box-shadow:0 0 10px rgba(22,224,184,.6);
}
.y9-article-body ol{counter-reset:y9ol;}
.y9-article-body ol li{counter-increment:y9ol;}
.y9-article-body ol li::before{
  content:counter(y9ol,decimal-leading-zero);
  position:absolute;left:0;top:0;
  color:var(--brand-300);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.9;
}
.y9-article-body blockquote{
  background:var(--glass);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-500);
  border-radius:14px;
  padding:18px 24px;
  color:var(--t2);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.y9-article-body blockquote p{color:var(--t2);margin:0;}
.y9-article-body img{
  border-radius:16px;
  border:1px solid var(--line-strong);
  margin:1.6em auto;
  width:100%;
  height:auto;
}
.y9-article-body figure{margin:1.6em 0;}
.y9-article-body figcaption{
  margin-top:10px;text-align:center;font-size:13.5px;color:var(--t3);
}
.y9-article-body table{
  width:100%;
  display:block;
  overflow-x:auto;
  border-collapse:collapse;
  border-radius:14px;
  font-size:15px;
  margin:1.6em 0;
}
.y9-article-body th,.y9-article-body td{
  border:1px solid var(--line);
  padding:12px 16px;
  text-align:left;
  white-space:nowrap;
}
.y9-article-body th{background:rgba(255,255,255,.06);color:var(--t1);font-weight:600;}
.y9-article-body td{color:#C8D6DE;}
.y9-article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.y9-article-body code{
  background:rgba(22,224,184,.10);
  border:1px solid var(--line-brand);
  border-radius:6px;
  padding:2px 7px;
  font-size:14px;
  color:var(--brand-300);
}
.y9-article-body pre{
  background:var(--bg-800);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 20px;
  overflow-x:auto;
}
.y9-article-body pre code{background:none;border:0;padding:0;color:#C8D6DE;}

/* 空态 */
.y9-empty{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card-lg);
  background:var(--glass);
  padding:56px 28px;
  text-align:center;
}
.y9-empty i{font-size:44px;color:var(--brand-500);display:block;margin-bottom:16px;}
.y9-empty h2{font-size:22px;font-weight:700;color:var(--t1);}
.y9-empty p{margin-top:10px;color:var(--t2);}
.y9-empty .y9-btn{margin-top:22px;}

/* 右侧目录 */
.y9-toc{
  position:sticky;
  top:104px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 20px 16px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}
.y9-toc-title{
  font-size:13px;color:var(--t3);letter-spacing:.06em;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.y9-toc-title::before{content:"";width:14px;height:1px;background:var(--brand-500);}
.y9-toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto;}
.y9-toc-list a{
  display:block;
  font-size:13.5px;
  color:var(--t2);
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  line-height:1.5;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.y9-toc-list a:hover{color:#fff;background:rgba(255,255,255,.05);transform:translateX(2px);}
.y9-toc-list a.is-h3{padding-left:22px;font-size:13px;color:var(--t3);}
.y9-toc-list a.y9-toc-active{
  color:var(--brand-300);
  border-left-color:var(--brand-500);
  background:rgba(22,224,184,.08);
}

/* 文末 */
.y9-article-foot{margin-top:56px;}
.y9-foot-nav{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
.y9-foot-nav .y9-back{display:inline-flex;align-items:center;gap:9px;color:var(--t2);font-size:15px;}
.y9-foot-nav .y9-back:hover{color:var(--brand-300);}

.y9-relate{margin-top:52px;}
.y9-relate h2{
  font-size:24px;font-weight:700;color:var(--t1);
  display:flex;align-items:center;gap:12px;margin-bottom:24px;
}
.y9-relate h2::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent);}
.y9-relate-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.y9-relate-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  height:100%;
}
.y9-relate-card:hover{transform:translateY(-5px);border-color:var(--line-brand);box-shadow:var(--glow);}
.y9-relate-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-700);}
.y9-relate-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.y9-relate-card:hover .y9-relate-thumb img{transform:scale(1.04);}
.y9-relate-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.y9-relate-body h3{font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;}
.y9-relate-body p{font-size:14px;color:var(--t2);flex:1;}
.y9-relate-more{font-size:13.5px;color:var(--brand-300);display:inline-flex;align-items:center;gap:7px;}

/* CTA 条 */
.y9-cta-strip{padding:0 0 var(--section-pad);}
.y9-cta-inner{
  position:relative;
  border-radius:var(--r-card-lg);
  border:1px solid var(--line-brand);
  background:
    linear-gradient(90deg,rgba(22,224,184,.10),rgba(22,224,184,.03) 60%,rgba(124,92,255,.08));
  padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  overflow:hidden;
}
.y9-cta-inner::before,
.y9-cta-inner::after{
  content:"";position:absolute;top:0;bottom:0;width:120px;pointer-events:none;
}
.y9-cta-inner::before{left:0;background:linear-gradient(90deg,rgba(22,224,184,.18),transparent);}
.y9-cta-inner::after{right:0;background:linear-gradient(270deg,rgba(124,92,255,.16),transparent);}
.y9-cta-text{position:relative;z-index:1;min-width:0;}
.y9-cta-text h2{font-size:26px;font-weight:700;color:var(--t1);}
.y9-cta-text p{margin-top:10px;color:var(--t2);font-size:15px;}
.y9-cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.y9-footer{
  background:var(--bg-900);
  border-top:1px solid transparent;
  position:relative;
  padding:64px 0 0;
  margin-top:20px;
}
.y9-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.55),transparent);
}
.y9-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
}
.y9-footer-col h3{
  font-size:14px;font-weight:600;color:var(--t1);letter-spacing:.04em;margin-bottom:18px;
}
.y9-footer-col ul{display:flex;flex-direction:column;gap:11px;}
.y9-footer-col ul a,.y9-footer-col li{font-size:14px;color:var(--t2);}
.y9-footer-col ul a:hover{color:var(--brand-300);transform:translateX(2px);display:inline-block;}
.y9-footer-brand .y9-logo{margin-bottom:16px;}
.y9-footer-brand p{font-size:14px;color:var(--t2);max-width:320px;}
.y9-footer-quote{
  margin-top:16px;font-size:13.5px;color:var(--t3);
  border-left:2px solid rgba(22,224,184,.45);padding-left:12px;
}
.y9-footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.y9-footer-bottom a{color:var(--t2);}
.y9-footer-bottom a:hover{color:var(--brand-300);}

/* 移动端固定 CTA */
.y9-mobile-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;height:56px;z-index:1040;
  background:rgba(6,11,18,.96);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 14px;
}
.y9-mobile-cta-text{font-size:12.5px;color:var(--t2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.y9-mobile-cta .y9-btn{flex:0 0 auto;}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .y9-article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .y9-toc{display:none;}
  .y9-article{max-width:820px;}
}
@media(max-width:991px){
  :root{--section-pad:64px;}
  .y9-menu{display:none;}
  .y9-burger{display:flex;}
  .y9-nav-actions .y9-btn-ghost{display:none;}
  .y9-topbar-tip{display:none;}
  .y9-article-head{padding:36px 0 34px;}
  .y9-article-head h1{font-size:32px;}
  .y9-head-main{flex-direction:column;gap:20px;}
  .y9-section-head h2{font-size:28px;}
  .y9-relate-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .y9-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .y9-cta-inner{flex-direction:column;align-items:flex-start;padding:28px;}
  .y9-mobile-cta{display:flex;}
  body{padding-bottom:56px;}
}
@media(max-width:767px){
  :root{--section-pad:48px;}
  .y9-article-head h1{font-size:27px;line-height:1.32;}
  .y9-article-body{font-size:16.5px;line-height:1.85;}
  .y9-article-body h2{font-size:23px;}
  .y9-article-body h3{font-size:19px;}
  .y9-relate-grid{grid-template-columns:minmax(0,1fr);}
  .y9-section-head h2{font-size:24px;}
  .y9-cta-text h2{font-size:22px;}
  .y9-breadcrumb-current{max-width:180px;}
  .y9-footer-grid{grid-template-columns:1fr;gap:28px;}
  .y9-logo-text{font-size:16px;}
}
@media(max-width:575px){
  .y9-container{padding:0 16px;}
  .y9-topbar-left .y9-status{font-size:12px;}
  .y9-topbar-right .y9-count-mini{display:none;}
  .y9-head-actions{width:100%;}
  .y9-head-actions .y9-btn{flex:1;}
  .y9-cta-actions{width:100%;}
  .y9-cta-actions .y9-btn{width:100%;}
  .y9-article-body h2{font-size:21px;}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .y9-btn-primary:hover,.y9-card:hover,.y9-relate-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-900:#060B12;--bg-800:#0A121C;--bg-700:#0E1822;
  --brand-500:#16E0B8;--brand-600:#0BB894;--brand-300:#6BF0D5;
  --violet:#7C5CFF;--amber:#FFB43A;
  --t1:#EAF2F5;--t2:#9FB0BC;--t3:#66788A;
  --glass:rgba(255,255,255,.045);--stroke:rgba(255,255,255,.10);
  --r-xl:22px;--r-lg:18px;--r-sm:14px;--r-btn:12px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(22,224,184,.35),0 12px 40px -10px rgba(22,224,184,.45);
  --sec-pad:88px;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",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;background:var(--bg-900);color:var(--t1);font-family:var(--font);
  font-size:16.5px;line-height:1.85;font-weight:400;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:16px 16px;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-300);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--t1);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.y9-num{font-variant-numeric:tabular-nums;}
.y9-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media (min-width:1400px){.y9-container{max-width:1280px;}}
.y9-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ============ 顶部条 + 导航 ============ */
.y9-header{position:sticky;top:0;z-index:1030;background:linear-gradient(180deg,rgba(6,11,18,.96),rgba(6,11,18,.80));backdrop-filter:blur(12px) saturate(120%);-webkit-backdrop-filter:blur(12px) saturate(120%);border-bottom:1px solid rgba(255,255,255,.07);transition:box-shadow .28s ease;}
.y9-header.is-scrolled{box-shadow:0 12px 32px rgba(0,0,0,.42);}
.y9-topbar{height:32px;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.05);transition:height .28s ease,opacity .22s ease,border-color .28s ease;}
.y9-header.is-scrolled .y9-topbar{height:0;opacity:0;border-color:transparent;}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;height:32px;gap:16px;}
.y9-topbar-left,.y9-topbar-right{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--t2);white-space:nowrap;}
.y9-status{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--t2);}
.y9-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 0 rgba(22,224,184,.6);animation:y9Pulse 2.4s ease-in-out infinite;display:inline-block;}
@keyframes y9Pulse{0%,100%{box-shadow:0 0 0 0 rgba(22,224,184,.55);}50%{box-shadow:0 0 0 6px rgba(22,224,184,0);}}
.y9-topbar-tip{color:var(--t3);}
.y9-count-mini b{color:var(--amber);font-weight:700;}
.y9-topbar-cta{color:var(--brand-300);font-size:12.5px;font-weight:600;}
.y9-topbar-cta:hover{color:#fff;}
.y9-nav{height:72px;display:flex;align-items:center;transition:height .28s ease;}
.y9-header.is-scrolled .y9-nav{height:60px;}
.y9-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;}
.y9-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.y9-logo-mark{width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;color:#04140F;background:linear-gradient(135deg,var(--brand-500),var(--violet));box-shadow:0 8px 22px -10px rgba(22,224,184,.85);}
.y9-logo-text{font-size:18px;font-weight:800;color:var(--t1);letter-spacing:.01em;white-space:nowrap;}
.y9-menu{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;}
.y9-menu li{position:relative;}
.y9-menu a{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--t2);transition:color .2s ease,background .2s ease,box-shadow .2s ease;}
.y9-menu a:hover{color:var(--t1);background:rgba(255,255,255,.05);box-shadow:inset 0 0 0 1px rgba(255,255,255,.09);}
.y9-menu a.active{color:var(--brand-500);}
.y9-menu a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),rgba(22,224,184,0));}
.y9-menu a.active::before{content:"";position:absolute;right:8px;top:8px;width:4px;height:4px;border-radius:50%;background:var(--brand-300);box-shadow:0 0 8px 2px rgba(107,240,213,.7);}
.y9-badge{font-size:11px;line-height:1;padding:3px 7px;border-radius:999px;color:var(--brand-300);border:1px solid rgba(22,224,184,.4);background:rgba(22,224,184,.08);}
.y9-nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.y9-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;white-space:nowrap;}
.y9-btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.y9-btn-block{width:100%;}
.y9-btn-primary{position:relative;overflow:hidden;color:#04140F;background:linear-gradient(135deg,var(--brand-500),var(--brand-600));box-shadow:0 10px 28px -12px rgba(22,224,184,.75);}
.y9-btn-primary::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);transform:skewX(-18deg);animation:y9Sheen 4.6s ease-in-out infinite;}
@keyframes y9Sheen{0%{left:-60%;}45%{left:130%;}100%{left:130%;}}
.y9-btn-primary:hover{color:#04140F;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 36px -12px rgba(22,224,184,.9);}
.y9-btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.y9-btn-ghost{color:var(--t1);background:transparent;border-color:rgba(255,255,255,.14);}
.y9-btn-ghost:hover{color:var(--t1);background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);transform:translateY(-2px);}
.y9-btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.y9-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.03);flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:border-color .2s ease,background .2s ease;}
.y9-burger:hover{border-color:rgba(22,224,184,.6);background:rgba(255,255,255,.06);}
.y9-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);}

/* 移动抽屉 */
.y9-drawer{background:var(--bg-800);color:var(--t1);width:320px;max-width:86vw;border-left:1px solid rgba(255,255,255,.08);}
.y9-drawer .offcanvas-header{padding:20px;border-bottom:1px solid rgba(255,255,255,.08);}
.y9-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75;}
.y9-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:18px;}
.y9-drawer-nav{display:grid;gap:6px;}
.y9-drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:12px;color:var(--t2);font-size:16px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);}
.y9-drawer-nav a:hover,.y9-drawer-nav a.active{color:var(--brand-500);border-color:rgba(22,224,184,.45);background:rgba(22,224,184,.07);}
.y9-drawer-foot{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;display:grid;gap:12px;font-size:13px;color:var(--t2);}

/* ============ 页头 ============ */
.y9-pagehead{position:relative;overflow:hidden;padding:44px 0 52px;min-height:264px;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.07);background-color:var(--bg-800);background-image:linear-gradient(100deg,rgba(6,11,18,.95) 12%,rgba(6,11,18,.72) 62%,rgba(6,11,18,.9)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;}
.y9-pagehead::after{content:"";position:absolute;top:-40%;right:-10%;width:52%;height:180%;transform:rotate(12deg);background:linear-gradient(90deg,rgba(22,224,184,0),rgba(22,224,184,.10),rgba(124,92,255,.10),rgba(22,224,184,0));pointer-events:none;}
.y9-crumb{font-size:13px;color:var(--t3);display:flex;align-items:center;gap:8px;margin-bottom:16px;}
.y9-crumb a{color:var(--t2);}
.y9-crumb a:hover{color:var(--brand-500);}
.y9-crumb .sep{color:var(--t3);opacity:.7;}
.y9-crumb .cur{color:var(--t3);}
.y9-pagehead h1{font-size:clamp(28px,3.4vw,50px);font-weight:800;max-width:820px;}
.y9-pagehead-sub{margin-top:16px;font-size:17px;color:var(--t2);max-width:720px;}
.y9-pagehead-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.y9-pagehead-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.y9-pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:var(--t2);}
.y9-pill b{color:var(--brand-300);font-weight:700;}
.y9-pill-amber{border-color:rgba(255,180,58,.38);background:rgba(255,180,58,.08);color:var(--amber);}
.y9-pill-amber b{color:var(--amber);}

/* ============ 通用板块 ============ */
.y9-section{padding:var(--sec-pad) 0;position:relative;}
.y9-section-alt{background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(255,255,255,0));border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05);}
.y9-sec-head{max-width:760px;margin-bottom:40px;}
.y9-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--brand-300);text-transform:uppercase;font-weight:700;margin-bottom:14px;}
.y9-kicker::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent);}
.y9-sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.y9-sec-head p{margin-top:14px;color:var(--t2);max-width:700px;}

/* ============ 步骤时间轴 ============ */
.y9-steps{margin-top:8px;}
.y9-step{position:relative;display:grid;grid-template-columns:96px 1fr;gap:24px;padding-bottom:34px;}
.y9-step:last-child{padding-bottom:0;}
.y9-step::before{content:"";position:absolute;left:47px;top:64px;bottom:-6px;width:1px;background:linear-gradient(180deg,rgba(22,224,184,.45),rgba(255,255,255,.06));}
.y9-step:last-child::before{display:none;}
.y9-step-node{width:56px;height:56px;margin:8px 0 0 19px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;color:var(--brand-300);letter-spacing:.02em;background:linear-gradient(160deg,rgba(22,224,184,.18),rgba(255,255,255,.03));border:1px solid rgba(22,224,184,.42);box-shadow:0 0 0 6px rgba(22,224,184,.05),0 12px 30px -16px rgba(22,224,184,.85);}
.y9-step-body{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-lg);padding:24px 26px;box-shadow:var(--sh-1);transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;}
.y9-step-body:hover{border-color:rgba(22,224,184,.42);box-shadow:var(--sh-2);transform:translateY(-2px);}
.y9-step-body h3{font-size:20px;font-weight:600;}
.y9-step-list{margin-top:14px;display:grid;gap:10px;}
.y9-step-list li{position:relative;padding-left:20px;color:var(--t2);font-size:15.5px;}
.y9-step-list li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:rgba(22,224,184,.75);}
.y9-step-foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;}
.y9-time{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--t2);}
.y9-time b{color:var(--amber);font-variant-numeric:tabular-nums;font-weight:700;}
.y9-link{font-size:14px;font-weight:600;color:var(--brand-500);position:relative;}
.y9-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--brand-500);transition:width .24s ease;}
.y9-link:hover::after{width:100%;}

/* ============ 准备清单（左清单右图卡） ============ */
.y9-grid-prep{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start;}
.y9-checklist{display:grid;gap:0;border-top:1px solid rgba(255,255,255,.08);}
.y9-checklist li{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.08);}
.y9-check-idx{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--brand-300);background:rgba(22,224,184,.10);border:1px solid rgba(22,224,184,.35);font-variant-numeric:tabular-nums;}
.y9-checklist h3{font-size:17px;font-weight:600;}
.y9-checklist p{margin-top:6px;color:var(--t2);font-size:15px;}
.y9-figure{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-xl);padding:18px;box-shadow:var(--sh-2);}
.y9-figure-img{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;border:1px solid rgba(255,255,255,.08);}
.y9-figure-img img{width:100%;height:100%;object-fit:cover;}
.y9-figure-cap{margin-top:16px;font-size:14px;color:var(--t2);}
.y9-figure-note{margin-top:14px;padding:14px 16px;border-radius:var(--r-sm);border:1px solid rgba(255,180,58,.3);background:rgba(255,180,58,.06);font-size:14px;color:var(--t2);}
.y9-figure-note b{color:var(--amber);}

/* ============ 接入方式 不对称栅格 ============ */
.y9-grid-access{display:grid;grid-template-columns:1.38fr 1fr;gap:24px;}
.y9-access-side{display:grid;gap:24px;}
.y9-card{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;}
.y9-card:hover{border-color:rgba(22,224,184,.45);transform:translateY(-2px);box-shadow:var(--sh-2);}
.y9-card h3{font-size:20px;font-weight:600;}
.y9-card p{margin-top:12px;color:var(--t2);font-size:15.5px;}
.y9-card-media{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;border:1px solid rgba(255,255,255,.08);margin-bottom:20px;}
.y9-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.y9-card:hover .y9-card-media img{transform:scale(1.03);}
.y9-tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;padding:5px 11px;border-radius:999px;border:1px solid rgba(22,224,184,.38);background:rgba(22,224,184,.08);color:var(--brand-300);margin-bottom:14px;}
.y9-tag-amber{border-color:rgba(255,180,58,.38);background:rgba(255,180,58,.08);color:var(--amber);}
.y9-mini-list{margin-top:16px;display:grid;gap:8px;}
.y9-mini-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--t2);}
.y9-mini-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:rgba(22,224,184,.75);}

/* ============ 卡点列表 ============ */
.y9-issue-list{border-top:1px solid rgba(255,255,255,.08);}
.y9-issue{display:grid;grid-template-columns:260px 1fr;gap:28px;padding:28px 0;border-bottom:1px solid rgba(255,255,255,.08);}
.y9-issue h3{font-size:19px;font-weight:600;line-height:1.5;}
.y9-issue h3 span{display:block;font-size:12.5px;font-weight:700;color:var(--amber);letter-spacing:.1em;margin-bottom:8px;}
.y9-issue p{color:var(--t2);font-size:15.5px;}
.y9-issue-path{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
.y9-issue-path span{font-size:12.5px;color:var(--t2);padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);}

/* ============ FAQ ============ */
.y9-faq{border-top:1px solid rgba(255,255,255,.08);}
.y9-faq .accordion-item{background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.09);border-radius:0;}
.y9-faq .accordion-button{position:relative;background:transparent;color:var(--t1);font-size:17px;font-weight:600;line-height:1.6;padding:22px 48px 22px 0;box-shadow:none;border-radius:0;}
.y9-faq .accordion-button:not(.collapsed){color:var(--brand-500);background:transparent;box-shadow:none;}
.y9-faq .accordion-button:focus{box-shadow:none;outline:2px solid rgba(22,224,184,.55);outline-offset:-2px;}
.y9-faq .accordion-button::after{content:"";position:absolute;right:12px;top:50%;width:9px;height:9px;background-image:none;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-70%) rotate(45deg);transition:transform .18s ease;margin:0;}
.y9-faq .accordion-button:not(.collapsed)::after{transform:translateY(-25%) rotate(-135deg);}
.y9-faq .accordion-body{padding:0 0 24px;max-width:820px;color:var(--t2);font-size:15.5px;line-height:1.85;}

/* ============ CTA + 表单 ============ */
.y9-cta-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:32px;align-items:start;}
.y9-cta-left{background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-1);}
.y9-cta-left h2{font-size:clamp(22px,2.3vw,28px);}
.y9-cta-left>p{margin-top:14px;color:var(--t2);font-size:15.5px;}
.y9-cta-points{margin-top:22px;display:grid;gap:14px;}
.y9-cta-points li{position:relative;padding-left:22px;font-size:15px;color:var(--t2);}
.y9-cta-points li::before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;background:linear-gradient(135deg,var(--brand-500),var(--violet));}
.y9-form-card{background:var(--glass);border:1px solid rgba(22,224,184,.22);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-2);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);}
.y9-form{display:grid;gap:18px;margin-top:20px;}
.y9-field label{display:block;font-size:14px;color:var(--t2);margin-bottom:8px;font-weight:600;}
.y9-input,.y9-select,.y9-textarea{width:100%;background:rgba(6,11,18,.7);border:1px solid rgba(255,255,255,.13);border-radius:var(--r-btn);padding:13px 14px;font-size:15px;color:var(--t1);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;}
.y9-textarea{resize:vertical;min-height:96px;line-height:1.7;}
.y9-input::placeholder,.y9-textarea::placeholder{color:var(--t3);}
.y9-input:focus,.y9-select:focus,.y9-textarea:focus{outline:none;background:rgba(6,11,18,.9);border-color:rgba(22,224,184,.7);box-shadow:0 0 0 3px rgba(22,224,184,.16),0 0 22px -6px rgba(22,224,184,.5);}
.y9-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t2) 50%),linear-gradient(135deg,var(--t2) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.y9-select option{background:var(--bg-800);color:var(--t1);}
.y9-hint{margin-top:8px;font-size:12.5px;color:var(--t3);}
.y9-check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--t2);cursor:pointer;}
.y9-check input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);flex:0 0 auto;}
.y9-form-note{font-size:13.5px;padding:12px 14px;border-radius:var(--r-sm);border:1px solid rgba(22,224,184,.35);background:rgba(22,224,184,.08);color:var(--brand-300);}
.y9-field.has-error .y9-input{border-color:#FF8A66;box-shadow:0 0 0 3px rgba(255,138,102,.15);}
.y9-field.has-error .y9-hint{color:#FF8A66;}

/* ============ 页脚 ============ */
.y9-footer{background:var(--bg-900);position:relative;margin-top:8px;padding-top:64px;}
.y9-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,224,184,.55),transparent);}
.y9-foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:44px;}
.y9-foot-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--t1);}
.y9-foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.y9-foot-brand .y9-logo-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
.y9-foot-brand .y9-logo-text{font-size:17px;}
.y9-foot-col p{font-size:14px;color:var(--t2);max-width:320px;}
.y9-foot-status{margin-top:16px;display:inline-flex;}
.y9-foot-links{display:grid;gap:11px;}
.y9-foot-links a{font-size:14.5px;color:var(--t2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.y9-foot-links a:hover{color:var(--brand-500);transform:translateX(2px);}
.y9-foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t3);}
.y9-foot-bottom a{color:var(--t3);}
.y9-foot-bottom a:hover{color:var(--brand-500);}
.y9-top-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:var(--t2);font-size:13.5px;}

/* 移动端常驻 CTA */
.y9-mobile-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;height:56px;background:rgba(8,14,22,.96);backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.1);}
.y9-mobile-cta-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;}
.y9-mobile-cta .y9-status{font-size:12.5px;}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  :root{--sec-pad:80px;}
}
@media (max-width:1199.98px){
  :root{--sec-pad:68px;}
  .y9-menu a{padding:9px 11px;font-size:14.5px;}
  .y9-foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  :root{--sec-pad:58px;}
  .y9-menu,.y9-nav-actions .y9-btn-ghost{display:none;}
  .y9-burger{display:inline-flex;}
  .y9-nav{height:64px;}
  .y9-grid-prep,.y9-grid-access,.y9-cta-wrap{grid-template-columns:1fr;}
  .y9-foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .y9-issue{grid-template-columns:1fr;gap:12px;}
}
@media (max-width:767.98px){
  :root{--sec-pad:48px;}
  body{font-size:16px;padding-bottom:56px;}
  .y9-topbar{display:none;}
  .y9-header.is-scrolled .y9-topbar{display:none;}
  .y9-nav{height:60px;}
  .y9-pagehead{padding:32px 0 40px;min-height:220px;background-image:linear-gradient(120deg,rgba(6,11,18,.96) 20%,rgba(6,11,18,.85)),url('/assets/images/backpic/back-2.png');}
  .y9-pagehead h1{font-size:28px;}
  .y9-pagehead-sub{font-size:15.5px;}
  .y9-step{grid-template-columns:56px 1fr;gap:16px;padding-bottom:26px;}
  .y9-step::before{left:27px;top:58px;}
  .y9-step-node{width:46px;height:46px;margin:6px 0 0 4px;border-radius:14px;font-size:15px;}
  .y9-step-body{padding:20px;}
  .y9-step-body h3{font-size:18px;}
  .y9-card,.y9-form-card,.y9-cta-left{padding:22px;}
  .y9-mobile-cta{display:block;}
  .y9-foot-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
  .y9-foot-col p{max-width:none;}
  .y9-btn{width:100%;}
  .y9-nav-actions .y9-btn-sm{width:auto;}
  .y9-pagehead-actions .y9-btn{width:auto;}
}
@media (max-width:575.98px){
  .y9-container{padding:0 16px;}
  .y9-logo-text{font-size:16px;}
  .y9-faq .accordion-button{font-size:16px;padding:18px 40px 18px 0;}
  .y9-issue h3{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .y9-dot{animation:none;}
  .y9-btn-primary::after{display:none;}
}

/* roulang page: category4 */
:root{
  --bg-900:#060B12;
  --bg-800:#0A121C;
  --bg-700:#0E1822;
  --brand-500:#16E0B8;
  --brand-600:#0BB894;
  --brand-300:#6BF0D5;
  --violet:#7C5CFF;
  --amber:#FFB43A;
  --t1:#EAF2F5;
  --t2:#9FB0BC;
  --t3:#66788A;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.045);
  --danger:#FF7A6B;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:12px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(22,224,184,.35), 0 12px 40px -10px rgba(22,224,184,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--t1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-300);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.y9-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* layout */
.y9-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){:root{--container:1280px;}}
.y9-section{padding:88px 0;position:relative;}
.y9-section--tight{padding:64px 0;}
.y9-section--alt{background:var(--bg-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.y9-sec-head{max-width:760px;margin-bottom:40px;}
.y9-sec-head h2{font-size:34px;font-weight:700;line-height:1.3;margin-bottom:14px;}
.y9-sec-head p{color:var(--t2);font-size:16px;}
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-300);border:1px solid rgba(22,224,184,.35);
  background:rgba(22,224,184,.08);border-radius:999px;
  padding:5px 12px;margin-bottom:18px;
}
.y9-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-500);display:inline-block;}
.y9-grid{display:grid;gap:24px;}

/* buttons */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;line-height:1.2;
}
.y9-btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.y9-btn-primary{
  background:linear-gradient(135deg,#16E0B8 0%,#0BB894 100%);
  color:#04211B;box-shadow:0 8px 24px -10px rgba(22,224,184,.65);
}
.y9-btn-primary:hover{color:#04211B;transform:translateY(-2px);box-shadow:0 12px 30px -10px rgba(22,224,184,.85);}
.y9-btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(22,224,184,.6);}
.y9-btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--t1);}
.y9-btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);color:var(--brand-300);}
.y9-btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-300);
  font-size:15px;font-weight:600;border:none;background:none;padding:0;
}
.y9-btn-link span{border-bottom:1px solid rgba(107,240,213,.45);padding-bottom:2px;transition:border-color .2s ease;}
.y9-btn-link:hover span{border-color:var(--brand-500);}

/* header */
.y9-header{position:sticky;top:0;z-index:1030;background:rgba(6,11,18,.92);backdrop-filter:blur(10px);}
.y9-topbar{border-bottom:1px solid var(--line-soft);background:rgba(10,18,28,.85);}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:32px;gap:16px;}
.y9-topbar-left,.y9-topbar-right{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--t2);}
.y9-status{display:inline-flex;align-items:center;gap:7px;color:var(--brand-300);}
.y9-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 0 rgba(22,224,184,.6);animation:y9-breathe 2.4s ease-in-out infinite;}
@keyframes y9-breathe{
  0%,100%{box-shadow:0 0 0 0 rgba(22,224,184,.55);}
  50%{box-shadow:0 0 0 6px rgba(22,224,184,0);}
}
.y9-topbar-tip{color:var(--t3);}
.y9-count-mini b{color:var(--amber);font-weight:700;}
.y9-topbar-cta{
  color:var(--brand-300);font-weight:600;font-size:13px;
  border-bottom:1px solid rgba(107,240,213,.4);padding-bottom:1px;
}
.y9-nav{transition:padding .2s ease,background .2s ease;}
.y9-nav-inner{display:flex;align-items:center;gap:24px;min-height:72px;transition:min-height .2s ease;}
.y9-header.is-scrolled .y9-nav{background:rgba(10,18,28,.78);backdrop-filter:blur(14px) saturate(120%);border-bottom:1px solid var(--line);}
.y9-header.is-scrolled .y9-nav-inner{min-height:60px;}
.y9-logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:700;flex:0 0 auto;}
.y9-logo:hover{color:var(--t1);}
.y9-logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,#16E0B8 0%,#0BB894 55%,#7C5CFF 100%);
  color:#04211B;font-weight:800;font-size:19px;
  box-shadow:0 6px 18px -8px rgba(22,224,184,.8);
}
.y9-logo-text{font-size:17px;letter-spacing:.01em;}
.y9-menu{display:flex;align-items:center;gap:4px;margin-left:8px;}
.y9-menu a{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;color:var(--t2);font-size:15px;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.y9-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#16E0B8,#6BF0D5);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.y9-menu a:hover{color:var(--t1);background:rgba(255,255,255,.04);}
.y9-menu a:hover::after{transform:scaleX(1);}
.y9-menu a.active{color:var(--t1);}
.y9-menu a.active::after{transform:scaleX(1);}
.y9-menu a.active::before{
  content:"";position:absolute;right:6px;top:8px;width:5px;height:5px;border-radius:50%;
  background:var(--brand-500);box-shadow:0 0 8px rgba(22,224,184,.9);
}
.y9-badge{
  font-size:11px;line-height:1;padding:3px 7px;border-radius:999px;
  color:var(--amber);background:rgba(255,180,58,.10);border:1px solid rgba(255,180,58,.4);
  font-weight:600;
}
.y9-nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.y9-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);padding:0;place-items:center;gap:5px;
}
.y9-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);margin:3px auto;}

/* drawer */
.y9-drawer{background:var(--bg-800);color:var(--t1);width:min(86vw,340px);border-left:1px solid var(--line);}
.y9-drawer .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 20px;}
.y9-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:20px;}
.y9-drawer-status{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--t2);}
.y9-drawer-count{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t2);
}
.y9-drawer-count b{font-size:20px;color:var(--amber);}
.y9-drawer-nav{display:flex;flex-direction:column;gap:6px;}
.y9-drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;color:var(--t2);font-size:15px;font-weight:500;
  background:rgba(255,255,255,.03);border:1px solid transparent;
}
.y9-drawer-nav a.active{color:var(--brand-300);border-color:rgba(22,224,184,.4);background:rgba(22,224,184,.08);}
.y9-drawer-nav a:hover{color:var(--t1);border-color:var(--line);}

/* page head */
.y9-pagehead{
  position:relative;overflow:hidden;padding:56px 0 52px;
  min-height:260px;
  background-image:linear-gradient(180deg,rgba(6,11,18,.70) 0%,rgba(6,11,18,.94) 78%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.y9-pagehead::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:16px 16px;
  mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 68%);
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 68%);
  pointer-events:none;
}
.y9-pagehead::after{
  content:"";position:absolute;top:-40%;right:-10%;width:52%;height:180%;
  background:linear-gradient(100deg,rgba(22,224,184,.14),rgba(124,92,255,.06) 60%,transparent 80%);
  transform:rotate(12deg);filter:blur(10px);pointer-events:none;
}
.y9-pagehead .y9-container{position:relative;z-index:2;}
.y9-crumb{font-size:13px;color:var(--t3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:20px;}
.y9-crumb a{color:var(--t3);}
.y9-crumb a:hover{color:var(--brand-300);}
.y9-crumb .sep{opacity:.55;}
.y9-crumb .now{color:var(--t2);}
.y9-pagehead h1{
  font-size:46px;font-weight:800;line-height:1.2;letter-spacing:-.01em;
  max-width:900px;margin-bottom:16px;
}
.y9-pagehead p{color:var(--t2);font-size:17px;max-width:720px;}
.y9-pagehead-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.y9-head-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.y9-chip{
  font-size:13px;padding:7px 14px;border-radius:999px;color:var(--t2);
  background:var(--glass);border:1px solid var(--line);
}
.y9-chip b{color:var(--brand-300);font-weight:600;}

/* cards */
.y9-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.y9-card--lg{border-radius:var(--r-lg);padding:30px;}
.y9-card:hover{border-color:rgba(22,224,184,.45);box-shadow:var(--sh-2);transform:translateY(-3px);}
.y9-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.y9-card p{color:var(--t2);font-size:15px;}
.y9-card-glow{border-color:rgba(22,224,184,.35);box-shadow:var(--sh-glow);}

/* steps block */
.y9-split{display:grid;grid-template-columns:1.35fr .95fr;gap:26px;align-items:start;}
.y9-steps{display:flex;flex-direction:column;gap:2px;}
.y9-step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid var(--line-soft);
}
.y9-step:last-child{border-bottom:none;}
.y9-step-no{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:var(--brand-300);
  background:rgba(22,224,184,.07);border:1px solid rgba(22,224,184,.28);
  font-variant-numeric:tabular-nums;
}
.y9-step h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.y9-step p{color:var(--t2);font-size:15px;}
.y9-aside{
  background:linear-gradient(180deg,rgba(22,224,184,.08),rgba(255,255,255,.03));
  border:1px solid rgba(22,224,184,.25);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-1);
}
.y9-aside h3{font-size:19px;font-weight:600;margin-bottom:16px;}
.y9-stat-list{display:flex;flex-direction:column;gap:14px;}
.y9-stat{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:12px;border-bottom:1px dashed var(--line);
}
.y9-stat:last-child{border-bottom:none;padding-bottom:0;}
.y9-stat .k{color:var(--t2);font-size:14px;}
.y9-stat .v{color:var(--t1);font-weight:700;font-size:19px;}
.y9-stat .v em{font-style:normal;color:var(--brand-300);font-size:14px;font-weight:600;margin-left:4px;}

/* faq accordion */
.y9-faq-group{margin-top:34px;}
.y9-faq-group > h3{
  font-size:15px;font-weight:600;color:var(--brand-300);
  letter-spacing:.06em;margin-bottom:6px;display:flex;align-items:center;gap:10px;
}
.y9-faq-group > h3::after{content:"";flex:1;height:1px;background:var(--line-soft);}
.y9-faq .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line-soft);
}
.y9-faq .accordion-button{
  background:transparent;color:var(--t1);font-size:17px;font-weight:600;
  padding:22px 46px 22px 0;box-shadow:none;border-radius:0;line-height:1.55;
}
.y9-faq .accordion-button:not(.collapsed){color:var(--brand-300);}
.y9-faq .accordion-button::after{
  content:"";width:12px;height:12px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(45deg) translate(-2px,-2px);background-image:none;
  transition:transform .18s ease;position:absolute;right:12px;
}
.y9-faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg) translate(-2px,-2px);}
.y9-faq .accordion-button:focus{box-shadow:none;}
.y9-faq .accordion-body{
  padding:0 76px 26px 0;color:var(--t2);font-size:15.5px;line-height:1.85;max-width:820px;
}
.y9-faq .accordion-body ul{margin:12px 0 0;}
.y9-faq .accordion-body li{
  position:relative;padding-left:18px;margin-bottom:8px;color:var(--t2);
}
.y9-faq .accordion-body li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--brand-500);opacity:.8;
}

/* myth list */
.y9-myth{display:grid;grid-template-columns:.95fr 1.25fr;gap:26px;align-items:center;}
.y9-myth figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);}
.y9-myth figure img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.y9-myth-list{display:flex;flex-direction:column;gap:16px;}
.y9-myth-item{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:18px 20px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
}
.y9-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.y9-tag--no{color:#FFB4A6;background:rgba(255,122,107,.10);border:1px solid rgba(255,122,107,.35);}
.y9-tag--yes{color:var(--brand-300);background:rgba(22,224,184,.09);border:1px solid rgba(22,224,184,.35);}
.y9-myth-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.y9-myth-item p{color:var(--t2);font-size:15px;}

/* cta form */
.y9-cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(22,224,184,.09),rgba(124,92,255,.06) 70%,rgba(255,255,255,.02));
  border:1px solid rgba(22,224,184,.28);
  padding:38px;box-shadow:var(--sh-2);
}
.y9-cta-panel h2{font-size:30px;font-weight:700;margin-bottom:12px;}
.y9-cta-panel > p{color:var(--t2);max-width:640px;}
.y9-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:30px;align-items:end;}
.y9-field{display:flex;flex-direction:column;gap:8px;}
.y9-field label{font-size:14px;color:var(--t2);font-weight:500;}
.y9-input{
  width:100%;min-height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(6,11,18,.65);border:1px solid var(--line);color:var(--t1);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.y9-input::placeholder{color:var(--t3);}
.y9-input:focus{
  outline:none;border-color:rgba(22,224,184,.75);
  box-shadow:0 0 0 3px rgba(22,224,184,.16);
}
.y9-input.is-error{border-color:rgba(255,122,107,.7);box-shadow:0 0 0 3px rgba(255,122,107,.14);}
.y9-hint{font-size:13px;color:var(--t3);}
.y9-hint.is-error{color:var(--danger);}
.y9-consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t2);margin-top:4px;}
.y9-consent input{width:18px;height:18px;margin-top:2px;accent-color:#16E0B8;flex:0 0 auto;}
.y9-form-msg{margin-top:12px;font-size:14px;color:var(--brand-300);min-height:20px;}

/* contact strip */
.y9-contact-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.y9-contact-item{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t2);
  background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:999px;
  padding:9px 16px;
}
.y9-contact-item b{color:var(--t1);font-weight:600;font-variant-numeric:tabular-nums;}

/* footer */
.y9-footer{background:var(--bg-900);border-top:1px solid transparent;position:relative;padding-top:64px;}
.y9-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.6),transparent);
}
.y9-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:44px;}
.y9-footer h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1);}
.y9-footer p{color:var(--t2);font-size:14px;}
.y9-footer-links{display:flex;flex-direction:column;gap:11px;}
.y9-footer-links a{color:var(--t2);font-size:14px;transition:color .2s ease,transform .2s ease;}
.y9-footer-links a:hover{color:var(--brand-300);transform:translateX(2px);}
.y9-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.y9-footer-bottom{
  border-top:1px solid var(--line-soft);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.y9-to-top{color:var(--t2);font-size:13px;border:1px solid var(--line);border-radius:999px;padding:6px 14px;}
.y9-to-top:hover{color:var(--brand-300);border-color:rgba(22,224,184,.5);}

/* mobile cta */
.y9-mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;padding:0 16px;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(10,18,28,.94);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);font-size:13px;color:var(--t2);
}
.y9-mobile-cta b{color:var(--amber);font-weight:700;}

/* responsive */
@media (max-width:1199.98px){
  .y9-menu a{padding:10px 10px;font-size:14px;}
  .y9-pagehead h1{font-size:40px;}
}
@media (max-width:991.98px){
  .y9-menu{display:none;}
  .y9-nav-actions .y9-btn-ghost{display:none;}
  .y9-burger{display:grid;}
  .y9-section{padding:64px 0;}
  .y9-split{grid-template-columns:1fr;}
  .y9-myth{grid-template-columns:1fr;}
  .y9-cta-grid{grid-template-columns:1fr;}
  .y9-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;padding-bottom:56px;}
  .y9-topbar-left .y9-topbar-tip{display:none;}
  .y9-topbar-inner{min-height:34px;}
  .y9-pagehead{padding:38px 0 40px;min-height:auto;}
  .y9-pagehead h1{font-size:29px;}
  .y9-pagehead p{font-size:15.5px;}
  .y9-sec-head h2{font-size:24px;}
  .y9-section{padding:48px 0;}
  .y9-card--lg,.y9-cta-panel{padding:22px;}
  .y9-cta-panel h2{font-size:24px;}
  .y9-faq .accordion-button{font-size:16px;padding:18px 40px 18px 0;}
  .y9-faq .accordion-body{padding:0 0 20px 0;font-size:15px;}
  .y9-step{grid-template-columns:44px 1fr;gap:14px;}
  .y9-step-no{width:44px;height:44px;border-radius:12px;font-size:15px;}
  .y9-footer-grid{grid-template-columns:1fr;gap:26px;}
  .y9-mobile-cta{display:flex;}
  .y9-logo-text{font-size:16px;}
}
@media (max-width:519.98px){
  .y9-container{padding:0 16px;}
  .y9-pagehead h1{font-size:26px;}
  .y9-sec-head h2{font-size:22px;}
  .y9-btn{padding:0 18px;}
  .y9-contact-row{gap:10px;}
  .y9-head-chips{gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .y9-card:hover{transform:none;}
  .y9-btn-primary:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-900:#060B12; --bg-800:#0A121C; --bg-700:#0E1822;
  --brand-500:#16E0B8; --brand-600:#0BB894; --brand-300:#6BF0D5;
  --violet:#7C5CFF; --amber:#FFB43A;
  --t1:#EAF2F5; --t2:#9FB0BC; --t3:#66788A;
  --glass:rgba(255,255,255,.045); --glass-bd:rgba(255,255,255,.10);
  --r-card:18px; --r-card-lg:22px; --r-btn:12px; --r-input:12px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(22,224,184,.35), 0 12px 40px -10px rgba(22,224,184,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--t1);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:16px 16px;
}
body::after{
  content:"";position:fixed;top:-25%;right:-15%;width:65vw;height:130vh;z-index:0;pointer-events:none;
  background:linear-gradient(105deg,rgba(22,224,184,.10),rgba(124,92,255,.06) 45%,transparent 72%);
  transform:rotate(12deg);filter:blur(22px);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block}
a{color:var(--brand-300);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.y9-num{font-variant-numeric:tabular-nums}
.y9-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.y9-container{max-width:1280px}}

/* ---------- 顶栏 ---------- */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,11,18,.88);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .24s ease,box-shadow .24s ease;
}
.y9-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(0,0,0,.9)}
.y9-topbar{
  background:rgba(10,18,28,.9);
  border-bottom:1px solid rgba(255,255,255,.06);
  max-height:34px;overflow:hidden;
  transition:max-height .24s ease,opacity .24s ease;
}
.y9-header.is-scrolled .y9-topbar{max-height:0;opacity:0}
.y9-topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;font-size:13px;color:var(--t3)}
.y9-topbar-left,.y9-topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap}
.y9-status{display:inline-flex;align-items:center;gap:7px;color:var(--brand-300)}
.y9-dot{
  width:6px;height:6px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 0 0 rgba(22,224,184,.6);
  animation:y9pulse 2.4s ease-out infinite;
}
@keyframes y9pulse{
  0%{box-shadow:0 0 0 0 rgba(22,224,184,.55)}
  70%{box-shadow:0 0 0 8px rgba(22,224,184,0)}
  100%{box-shadow:0 0 0 0 rgba(22,224,184,0)}
}
.y9-topbar-tip{color:var(--t3)}
.y9-count-mini b{color:var(--amber);font-weight:700;margin-left:2px}
.y9-topbar-cta{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(22,224,184,.4);color:var(--brand-300);font-size:12.5px;background:rgba(22,224,184,.08);
}
.y9-topbar-cta:hover{background:rgba(22,224,184,.16);color:var(--brand-300)}
@media (max-width:767.98px){.y9-topbar-tip{display:none}}

/* ---------- 主导航 ---------- */
.y9-nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .24s ease}
.y9-header.is-scrolled .y9-nav-inner{height:60px}
.y9-logo{display:inline-flex;align-items:center;gap:11px;color:var(--t1);flex:0 0 auto}
.y9-logo:hover{color:var(--t1)}
.y9-logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-500),var(--violet));
  color:#03231c;font-weight:800;font-size:20px;letter-spacing:-.02em;
  box-shadow:0 8px 22px -10px rgba(22,224,184,.75);
}
.y9-logo-text{font-size:19px;font-weight:800;letter-spacing:-.01em}
.y9-menu{display:flex;align-items:center;gap:4px;margin-left:12px}
.y9-menu a{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:10px;color:var(--t2);font-size:15px;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.y9-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.y9-menu a:hover{color:var(--t1);background:rgba(255,255,255,.06)}
.y9-menu a:hover::after,.y9-menu a.active::after{transform:scaleX(1)}
.y9-menu a.active{color:var(--brand-300)}
.y9-menu a.active::before{
  content:"";position:absolute;top:7px;right:7px;width:5px;height:5px;border-radius:50%;
  background:var(--brand-500);box-shadow:0 0 8px var(--brand-500);
}
.y9-badge{
  display:inline-block;padding:1px 7px;border-radius:999px;font-size:11px;line-height:1.7;font-weight:600;
  background:rgba(255,180,58,.12);border:1px solid rgba(255,180,58,.45);color:var(--amber);
}
.y9-nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.y9-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
  background:transparent;padding:0;place-items:center;gap:4px;flex-direction:column;
}
.y9-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1)}
@media (max-width:1199.98px){
  .y9-menu{margin-left:0}
  .y9-menu a{padding:9px 10px;font-size:14.5px}
}
@media (max-width:991.98px){
  .y9-menu,.y9-nav-actions .y9-btn-ghost,.y9-nav-actions .y9-btn-primary{display:none}
  .y9-burger{display:flex}
}

/* ---------- 按钮 ---------- */
.y9-btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.y9-btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.y9-btn-lg{min-height:50px;padding:0 26px;font-size:16px}
.y9-btn-primary{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#03231c;box-shadow:0 8px 28px -12px rgba(22,224,184,.7);
}
.y9-btn-primary:hover{color:#03231c;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 36px -12px rgba(22,224,184,.85)}
.y9-btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(22,224,184,.6)}
.y9-btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--t1)}
.y9-btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(22,224,184,.6);color:var(--brand-300);transform:translateY(-2px)}
.y9-btn-ghost:active{transform:translateY(0)}
.y9-btn-sheen::after{
  content:"";position:absolute;top:0;bottom:0;left:-60%;width:38%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-18deg);animation:y9sheen 5s ease-in-out infinite;
}
@keyframes y9sheen{0%{left:-60%}55%{left:120%}100%{left:120%}}
.y9-btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-300);font-weight:600;font-size:14.5px;
  padding:4px 0;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.y9-btn-link:hover{color:var(--brand-500);border-color:rgba(22,224,184,.6)}
.y9-btn-block{width:100%}

/* ---------- 抽屉 ---------- */
.y9-drawer{background:var(--bg-800);color:var(--t1);width:320px;border-left:1px solid rgba(255,255,255,.1)}
.y9-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:18px 20px}
.y9-drawer .offcanvas-body{padding:20px}
.y9-drawer-title{font-size:16px;font-weight:800}
.y9-drawer-list{display:grid;gap:6px;margin-bottom:22px}
.y9-drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;color:var(--t1);background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);font-size:15px;
}
.y9-drawer-list a.active{color:var(--brand-300);border-color:rgba(22,224,184,.4);background:rgba(22,224,184,.09)}
.y9-drawer-meta{display:grid;gap:10px;margin-bottom:20px;font-size:13.5px;color:var(--t2)}
.y9-drawer-meta .y9-chipline{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-radius:12px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.07)}
.y9-drawer-cta{display:grid;gap:10px}

/* ---------- 移动端底部条 ---------- */
.y9-mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:rgba(6,11,18,.95);backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,255,255,.1);font-size:13.5px;color:var(--t2);
}
.y9-mobile-bar b{color:var(--amber)}
@media (max-width:991.98px){body{padding-bottom:56px}}
@media (min-width:992px){.y9-mobile-bar{display:none!important}}

/* ---------- 页头（窄幅） ---------- */
.y9-hero-sub{
  position:relative;border-bottom:1px solid rgba(255,255,255,.07);
  background-image:linear-gradient(180deg,rgba(6,11,18,.82),rgba(6,11,18,.96)),
                   url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  padding:52px 0 56px;
}
.y9-hero-sub::before{
  content:"";position:absolute;left:-10%;top:-40%;width:60%;height:180%;
  background:linear-gradient(100deg,rgba(22,224,184,.14),transparent 65%);
  transform:rotate(12deg);filter:blur(26px);pointer-events:none;
}
.y9-hero-sub .y9-container{position:relative}
.y9-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px;flex-wrap:wrap}
.y9-crumb a{color:var(--t3)}
.y9-crumb a:hover{color:var(--brand-300)}
.y9-crumb span.sep{color:rgba(255,255,255,.2)}
.y9-crumb .cur{color:var(--t3)}
.y9-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;color:var(--brand-300);background:rgba(22,224,184,.09);
  border:1px solid rgba(22,224,184,.34);margin-bottom:16px;
}
.y9-hero-sub h1{font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;max-width:900px}
.y9-hero-sub h1 em{font-style:normal;color:var(--brand-300)}
.y9-hero-lead{margin-top:14px;max-width:760px;color:var(--t2);font-size:16.5px}
.y9-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.y9-hero-strip{display:flex;flex-wrap:wrap;gap:24px 40px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}
.y9-hero-strip div{min-width:120px}
.y9-hero-strip b{display:block;font-size:26px;font-weight:800;color:var(--t1)}
.y9-hero-strip span{font-size:13px;color:var(--t3)}

/* ---------- 板块 ---------- */
.y9-section{padding:88px 0}
.y9-section.tight{padding-top:56px}
.y9-sec-head{max-width:780px;margin-bottom:40px}
.y9-sec-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.y9-sec-head p{color:var(--t2);font-size:16px}
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  color:var(--brand-300);margin-bottom:12px;text-transform:uppercase;
}
.y9-eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent)}

/* ---------- 面板 / 清单 ---------- */
.y9-panel{
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card-lg);
  padding:26px;box-shadow:var(--sh-1);height:100%;
}
.y9-panel-title{font-size:19px;font-weight:700;margin-bottom:6px}
.y9-panel-sub{font-size:13.5px;color:var(--t3);margin-bottom:20px}
.y9-spec-list{display:grid;gap:16px}
.y9-spec-list li{display:flex;gap:14px;padding-bottom:16px;border-bottom:1px dashed rgba(255,255,255,.09)}
.y9-spec-list li:last-child{border-bottom:0;padding-bottom:0}
.y9-spec-idx{
  flex:0 0 auto;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--brand-300);
  background:rgba(22,224,184,.1);border:1px solid rgba(22,224,184,.3);
}
.y9-spec-list b{display:block;font-size:15.5px;margin-bottom:3px}
.y9-spec-list p{font-size:14px;color:var(--t2);line-height:1.75}

/* ---------- 对照表 ---------- */
.y9-table-wrap{
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card-lg);
  overflow:hidden;box-shadow:var(--sh-2);
}
.y9-table-scroll{overflow-x:auto}
.y9-table{width:100%;min-width:700px;border-collapse:separate;border-spacing:0;font-size:15px}
.y9-table thead th{
  position:sticky;top:0;z-index:2;text-align:left;padding:18px;
  font-size:13.5px;font-weight:600;letter-spacing:.04em;color:var(--t2);
  background:rgba(10,18,28,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.y9-table thead th .y9-th{display:inline-flex;align-items:center;gap:8px}
.y9-table td{padding:16px 18px;color:var(--t2);border-bottom:1px solid rgba(255,255,255,.06)}
.y9-table tbody tr:last-child td{border-bottom:0}
.y9-table th:first-child,.y9-table td:first-child{
  font-weight:700;color:var(--t1);background:rgba(255,255,255,.03);white-space:nowrap;
}
.y9-table tbody tr{transition:background .2s ease}
.y9-table tbody tr:hover td{background:rgba(255,255,255,.035)}
.y9-table td.is-recommend{background:rgba(22,224,184,.06);color:var(--brand-300);font-weight:600}
.y9-table th.is-recommend{background:rgba(22,224,184,.12);color:var(--brand-300)}
.y9-table tbody tr:hover td.is-recommend{background:rgba(22,224,184,.1)}
.y9-pill-rec{
  display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;font-weight:700;
  background:rgba(255,180,58,.14);border:1px solid rgba(255,180,58,.5);color:var(--amber);
}
.y9-table-note{
  display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;
  margin-top:20px;font-size:13.5px;color:var(--t3);
}

/* ---------- 移动端档位卡 ---------- */
.y9-plan-cards{display:grid;gap:14px;margin-top:22px}
.y9-plan-card{
  padding:22px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--glass-bd);box-shadow:var(--sh-1);
}
.y9-plan-card.is-recommend{border-color:rgba(22,224,184,.38);box-shadow:var(--sh-glow)}
.y9-plan-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.y9-plan-card-head h3{font-size:18px}
.y9-plan-card dl{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;margin:0;font-size:14.5px}
.y9-plan-card dt{color:var(--t3)}
.y9-plan-card dd{margin:0;text-align:right;color:var(--t2)}

/* ---------- 折叠说明 ---------- */
.y9-acc{margin-top:40px;border-top:1px solid rgba(255,255,255,.08)}
.y9-acc-item{border-bottom:1px solid rgba(255,255,255,.08)}
.y9-acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;background:transparent;border:0;text-align:left;
  color:var(--t1);font-size:17px;font-weight:600;cursor:pointer;transition:color .2s ease;
}
.y9-acc-head:hover{color:var(--brand-300)}
.y9-acc-head:not(.collapsed){color:var(--brand-300)}
.y9-acc-ico{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:var(--t2);font-size:12px;
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.y9-acc-head:not(.collapsed) .y9-acc-ico{transform:rotate(180deg);color:var(--brand-300);border-color:rgba(22,224,184,.5)}
.y9-acc-body{max-width:820px;padding:0 4px 24px;color:var(--t2);font-size:15.5px;line-height:1.85}

/* ---------- 场景卡 ---------- */
.y9-scene-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card-lg);
  box-shadow:var(--sh-1);transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.y9-scene-card:hover{border-color:rgba(22,224,184,.4);transform:translateY(-3px);box-shadow:var(--sh-glow)}
.y9-scene-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.y9-scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.y9-scene-card:hover .y9-scene-media img{transform:scale(1.03)}
.y9-scene-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,0) 42%,rgba(6,11,18,.88));
}
.y9-scene-body{padding:24px 26px 26px}
.y9-scene-body h3{font-size:20px;margin-bottom:10px}
.y9-scene-body p{color:var(--t2);font-size:15px}
.y9-scene-points{display:grid;gap:8px;margin:16px 0 18px}
.y9-scene-points li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;color:var(--t2)}
.y9-scene-points i{color:var(--brand-500);font-size:13px;margin-top:6px}
@media (min-width:992px){
  .y9-scene-card--wide{flex-direction:row}
  .y9-scene-card--wide .y9-scene-media{flex:0 0 46%;aspect-ratio:auto}
  .y9-scene-card--wide .y9-scene-body{display:flex;flex-direction:column;justify-content:center}
}

/* ---------- 表单 ---------- */
.y9-form-grid{display:grid;gap:24px;grid-template-columns:5fr 7fr;align-items:start}
@media (max-width:991.98px){.y9-form-grid{grid-template-columns:1fr}.y9-form-col-form{order:-1}}
.y9-form-card{
  background:var(--glass);border:1px solid rgba(22,224,184,.18);border-radius:var(--r-card-lg);
  padding:28px;box-shadow:var(--sh-2);backdrop-filter:blur(12px) saturate(120%);
}
.y9-field{margin-bottom:18px}
.y9-field label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:8px;font-weight:500}
.y9-field label .req{color:var(--amber)}
.y9-input,.y9-select,.y9-textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-input);
  background:rgba(6,11,18,.72);border:1px solid rgba(255,255,255,.14);color:var(--t1);
  font-size:15px;font-family:inherit;line-height:1.5;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.y9-textarea{min-height:104px;resize:vertical}
.y9-input::placeholder,.y9-textarea::placeholder{color:var(--t3)}
.y9-input:focus,.y9-select:focus,.y9-textarea:focus{
  outline:none;border-color:rgba(22,224,184,.75);
  box-shadow:0 0 0 3px rgba(22,224,184,.18);
}
.y9-field.has-error .y9-input{border-color:rgba(255,138,110,.8);box-shadow:0 0 0 3px rgba(255,138,110,.14)}
.y9-err{display:none;margin-top:7px;font-size:13px;color:#FF8A6E}
.y9-field.has-error .y9-err{display:block}
.y9-check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--t2)}
.y9-check input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-500);flex:0 0 auto}
.y9-form-note{margin-top:14px;font-size:12.5px;color:var(--t3)}
.y9-form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;font-size:14px;
  background:rgba(22,224,184,.1);border:1px solid rgba(22,224,184,.4);color:var(--brand-300);
}
.y9-form-ok.show{display:block}
.y9-points{display:grid;gap:16px}
.y9-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--t2)}
.y9-points i{color:var(--brand-500);margin-top:6px;font-size:14px}
.y9-status-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;font-size:12.5px;
  color:var(--brand-300);background:rgba(22,224,184,.09);border:1px solid rgba(22,224,184,.32);margin-bottom:18px;
}

/* ---------- 通用小卡 / 数据条 ---------- */
.y9-stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.y9-stat{
  padding:20px 22px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--glass-bd);
}
.y9-stat b{display:block;font-size:26px;font-weight:800;color:var(--brand-300)}
.y9-stat span{font-size:13px;color:var(--t3)}
@media (max-width:767.98px){.y9-stat-row{grid-template-columns:repeat(2,1fr)}}

/* ---------- CTA 条 ---------- */
.y9-cta-bar{
  position:relative;overflow:hidden;border-radius:var(--r-card-lg);
  border:1px solid rgba(22,224,184,.26);
  background:linear-gradient(135deg,rgba(22,224,184,.10),rgba(124,92,255,.07));
  padding:34px 34px;display:flex;flex-wrap:wrap;align-items:center;gap:22px;justify-content:space-between;
}
.y9-cta-bar::before,.y9-cta-bar::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;filter:blur(60px);
}
.y9-cta-bar::before{left:-70px;top:-90px;background:rgba(22,224,184,.28)}
.y9-cta-bar::after{right:-80px;bottom:-100px;background:rgba(124,92,255,.22)}
.y9-cta-bar > *{position:relative;z-index:1}
.y9-cta-bar h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.y9-cta-bar p{color:var(--t2);font-size:15px;max-width:620px}
.y9-cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.y9-footer{
  position:relative;margin-top:24px;background:var(--bg-900);
  border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0;
}
.y9-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.75),transparent);
}
.y9-footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.y9-footer-desc{color:var(--t2);font-size:14.5px;max-width:340px}
.y9-footer h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--t1)}
.y9-footer-list{display:grid;gap:10px}
.y9-footer-list a{color:var(--t2);font-size:14.5px;display:inline-block;transition:color .2s ease,transform .2s ease}
.y9-footer-list a:hover{color:var(--brand-300);transform:translateX(2px)}
.y9-footer-meta{display:grid;gap:10px;font-size:14.5px;color:var(--t2)}
.y9-footer-meta span b{color:var(--t1);font-weight:600}
.y9-footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--t3);
}
.y9-footer-bottom a{color:var(--t3)}
.y9-footer-bottom a:hover{color:var(--brand-300)}
.y9-footer-note{
  padding:12px 0 26px;font-size:13px;color:var(--t3);
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
}
.y9-footer-note i{color:var(--brand-500);font-size:12px}

/* ---------- 响应式间距 ---------- */
@media (max-width:991.98px){
  .y9-section{padding:64px 0}
  .y9-hero-sub{padding:40px 0 44px}
  .y9-panel{padding:22px}
  .y9-footer{padding-top:52px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .y9-section{padding:48px 0}
  .y9-sec-head{margin-bottom:28px}
  .y9-hero-actions .y9-btn{width:100%}
  .y9-cta-bar{padding:26px 22px}
  .y9-form-card{padding:22px}
  .y9-stat-row{grid-template-columns:1fr 1fr}
}
@media (max-width:575.98px){
  .y9-container{padding:0 18px}
  .y9-stat-row{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}