/* roulang page: index */
/* ============ 1. 设计变量 ============ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-rgb:31,90,224;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-primary-soft:#EAF1FE;
  --y9-primary-soft2:#F2F6FD;
  --y9-orange:#FF7A2F;
  --y9-orange-dark:#E8651B;
  --y9-mint:#12B5A8;
  --y9-mint-soft:#E4F7F5;
  --y9-bg:#F5F8FC;
  --y9-bg-alt:#EEF3FB;
  --y9-white:#FFFFFF;
  --y9-text:#10203A;
  --y9-text-2:#5A6B85;
  --y9-text-3:#8A99B0;
  --y9-border:#E4EBF6;
  --y9-line:#EDF2FA;
  --y9-footer:#0E1F3C;
  --y9-r-card:16px;
  --y9-r-sm:12px;
  --y9-r-btn:10px;
  --y9-r-img:12px;
  --y9-r-hero:20px;
  --y9-sh1:0 1px 2px rgba(16,42,86,.06);
  --y9-sh2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-sh3:0 18px 40px -18px rgba(16,42,86,.30);
  --y9-ease:cubic-bezier(.2,.7,.3,1);
  --y9-font:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,-apple-system,'Segoe UI',sans-serif;
  --y9-nav-h:52px;

  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-border-radius-lg:16px;
  --bs-body-font-size:16px;
  --bs-body-font-family:var(--y9-font);
  --bs-font-sans-serif:var(--y9-font);
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
}

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--y9-font);
  font-size:16px;
  line-height:1.8;
  color:var(--y9-text);
  background:var(--y9-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;color:var(--y9-text);font-weight:700;letter-spacing:.01em}
h1{font-size:48px;line-height:1.25}
h2{font-size:32px;line-height:1.35}
h3{font-size:22px;font-weight:600;line-height:1.45}
h4{font-size:18px;font-weight:600;line-height:1.5}
p{margin:0}
a{color:var(--y9-primary);text-decoration:none;transition:color .2s var(--y9-ease)}
a:hover{color:var(--y9-primary-dark)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(31,90,224,.35);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,90,224,.18)}

.container{width:100%;max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1280px}}

.y9-section{padding:96px 0}
.y9-section--alt{background:var(--y9-white)}
.y9-section--soft{background:var(--y9-bg-alt)}

/* ============ 3. 头部导航 ============ */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:var(--y9-white);
  border-bottom:1px solid var(--y9-border);
  transition:box-shadow .24s var(--y9-ease);
}
.y9-header.is-scrolled{box-shadow:var(--y9-sh2)}
.y9-topbar{display:flex;align-items:center;gap:18px;height:72px}
.y9-brand{
  display:flex;align-items:center;gap:10px;
  color:var(--y9-text);font-size:19px;font-weight:700;
  white-space:nowrap;flex:0 0 auto;letter-spacing:.01em;
}
.y9-brand:hover{color:var(--y9-primary)}
.y9-brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,#2A6BFF 0%,#0F3070 100%);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
  box-shadow:0 8px 16px -8px rgba(31,90,224,.75);
}
.y9-search{position:relative;flex:0 1 320px;margin-left:auto}
.y9-search input{
  width:100%;height:44px;border-radius:999px;border:1px solid transparent;
  background:var(--y9-primary-soft2);padding:0 46px 0 18px;
  color:var(--y9-text);font-size:14px;
  transition:border-color .2s var(--y9-ease),box-shadow .2s var(--y9-ease),background .2s var(--y9-ease);
}
.y9-search input::placeholder{color:var(--y9-text-3)}
.y9-search input:focus{
  outline:none;background:#fff;border-color:var(--y9-primary);
  box-shadow:0 0 0 4px rgba(31,90,224,.14);
}
.y9-search-btn{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border:0;border-radius:50%;
  background:transparent;color:var(--y9-text-3);cursor:pointer;
  display:grid;place-items:center;transition:color .2s var(--y9-ease),background .2s var(--y9-ease);
}
.y9-search-btn:hover{color:var(--y9-primary);background:var(--y9-primary-soft)}
.y9-top-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.y9-burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--y9-border);
  background:#fff;color:var(--y9-text);display:none;place-items:center;cursor:pointer;
}
.y9-burger:hover{border-color:var(--y9-primary);color:var(--y9-primary)}

.y9-channels{position:relative;height:var(--y9-nav-h);display:flex;align-items:center;border-top:1px solid var(--y9-line)}
.y9-channels-scroll{
  display:flex;gap:8px;align-items:center;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x proximity;
  padding:4px 44px 4px 0;
  scrollbar-width:none;-ms-overflow-style:none;height:100%;
}
.y9-channels-scroll::-webkit-scrollbar{display:none}
.y9-channels::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:44px;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),#fff);
}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;background:var(--y9-primary-soft2);color:var(--y9-text-2);
  font-size:14px;white-space:nowrap;border:1px solid transparent;
  transition:background .2s var(--y9-ease),color .2s var(--y9-ease),border-color .2s var(--y9-ease);
}
.y9-chip:hover{color:var(--y9-primary);background:#fff;border-color:rgba(31,90,224,.45)}
.y9-chip.active{background:var(--y9-primary);color:#fff;border-color:var(--y9-primary)}

/* ============ 4. 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--y9-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--y9-ease),box-shadow .2s var(--y9-ease),background .2s var(--y9-ease),color .2s var(--y9-ease),border-color .2s var(--y9-ease);
}
.y9-btn:active{transform:translateY(0)}
.y9-btn-primary{background:var(--y9-primary);color:#fff;box-shadow:var(--y9-sh1)}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;box-shadow:var(--y9-sh2);transform:translateY(-1px)}
.y9-btn-accent{background:var(--y9-orange);color:#fff;box-shadow:0 8px 18px -10px rgba(255,122,47,.8)}
.y9-btn-accent:hover{background:var(--y9-orange-dark);color:#fff;box-shadow:var(--y9-sh2);transform:translateY(-1px)}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border-color:var(--y9-primary)}
.y9-btn-ghost:hover{background:var(--y9-primary-soft);color:var(--y9-primary-dark);transform:translateY(-1px)}
.y9-btn-lg{height:48px;padding:0 26px;font-size:16px}
.y9-btn-block{width:100%}
.y9-textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--y9-primary)}
.y9-textlink::after{content:"→";transition:transform .2s var(--y9-ease)}
.y9-textlink:hover::after{transform:translateX(4px)}

/* ============ 5. 标签与徽章 ============ */
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--y9-primary);
  background:var(--y9-primary-soft);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.y9-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--y9-primary-soft);color:var(--y9-primary);
}
.y9-pill-mint{background:var(--y9-mint-soft);color:#0B8479}
.y9-pill-orange{background:#FFF1E7;color:#D9551A}
.y9-pill-soft{background:var(--y9-primary-soft2);color:var(--y9-text-2)}

/* ============ 6. 区块标题与卡片 ============ */
.y9-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap}
.y9-sec-desc{color:var(--y9-text-2);font-size:16px;line-height:1.8;margin-top:14px;max-width:640px}
.y9-sec-link{flex:0 0 auto;padding-bottom:6px}
.y9-card{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-sh1);
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease),border-color .22s var(--y9-ease);
}
.y9-card:hover{transform:translateY(-3px);box-shadow:var(--y9-sh3);border-color:#D6E2F5}
.y9-num{
  display:inline-grid;place-items:center;width:40px;height:40px;
  border-radius:12px;border:1.5px solid var(--y9-primary);
  color:var(--y9-primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}

/* ============ 7. Hero ============ */
.y9-hero{
  position:relative;overflow:hidden;
  padding:76px 0 84px;
  background:linear-gradient(135deg,#FFFFFF 0%,#EAF1FE 100%);
}
.y9-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:radial-gradient(rgba(31,90,224,.16) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.y9-hero > .container{position:relative;z-index:1}
.y9-hero h1{font-size:48px;line-height:1.24;margin-bottom:20px}
.y9-hero-sub{font-size:17px;color:var(--y9-text-2);line-height:1.85;max-width:560px;margin-bottom:30px}
.y9-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.y9-trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-width:600px}
.y9-trust li{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--y9-text-2);font-weight:600;
}
.y9-trust i{color:var(--y9-mint);font-size:15px}
.y9-hero-visual{position:relative;padding-bottom:34px}
.y9-hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--y9-r-hero);box-shadow:var(--y9-sh2);
}
.y9-float-card{
  position:absolute;left:-14px;bottom:0;
  background:#fff;border-radius:14px;box-shadow:var(--y9-sh3);
  padding:16px 20px;display:flex;align-items:center;gap:16px;min-width:230px;
}
.y9-float-card .num{font-size:26px;font-weight:700;color:var(--y9-primary);font-variant-numeric:tabular-nums;line-height:1.1}
.y9-float-card .lbl{font-size:13px;color:var(--y9-text-2);line-height:1.5}
.y9-float-card i{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--y9-primary-soft);color:var(--y9-primary);font-size:17px}

/* ============ 8. 卖点区 ============ */
.y9-feature-lg{display:flex;flex-direction:column;height:100%;overflow:hidden}
.y9-feature-lg .thumb{aspect-ratio:16/10;overflow:hidden}
.y9-feature-lg .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--y9-ease)}
.y9-feature-lg:hover .thumb img{transform:scale(1.04)}
.y9-feature-lg .body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px}
.y9-feature-lg .body p{color:var(--y9-text-2);font-size:15px;line-height:1.8}
.y9-feature-sm{
  display:flex;flex-direction:column;gap:12px;padding:22px;height:100%;
}
.y9-feature-sm h4{font-size:17px}
.y9-feature-sm p{color:var(--y9-text-2);font-size:14px;line-height:1.75}

/* ============ 9. 演示区 ============ */
.y9-demo-panel{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-sh2);padding:20px;
}
.y9-demo-pills{display:flex;gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-bottom:16px}
.y9-demo-pills::-webkit-scrollbar{display:none}
.y9-demo-pills .nav-link{
  flex:0 0 auto;border:1px solid var(--y9-border);border-radius:999px;
  padding:8px 18px;font-size:14px;font-weight:600;color:var(--y9-text-2);background:#fff;
}
.y9-demo-pills .nav-link:hover{color:var(--y9-primary);border-color:rgba(31,90,224,.45)}
.y9-demo-pills .nav-link.active{background:var(--y9-primary);border-color:var(--y9-primary);color:#fff}
.y9-demo-content img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--y9-r-img)}
.y9-step-list li{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--y9-line);
}
.y9-step-list li:first-child{padding-top:4px}
.y9-step-list li:last-child{border-bottom:0;padding-bottom:4px}
.y9-step-list i{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:var(--y9-primary-soft);color:var(--y9-primary);font-size:16px;
}
.y9-step-list h4{font-size:16px;margin-bottom:6px}
.y9-step-list p{color:var(--y9-text-2);font-size:14px;line-height:1.75}

/* ============ 10. 数据与证据 ============ */
.y9-statbar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-sh1);overflow:hidden;
}
.y9-statbar > div{padding:28px 22px;border-right:1px solid var(--y9-line);text-align:center}
.y9-statbar > div:last-child{border-right:0}
.y9-statbar .num{font-size:32px;font-weight:700;color:var(--y9-primary);line-height:1.15;font-variant-numeric:tabular-nums}
.y9-statbar .num small{font-size:15px;font-weight:600;margin-left:2px}
.y9-statbar .lbl{font-size:13.5px;color:var(--y9-text-2);margin-top:6px}

.y9-case-lg{overflow:hidden;height:100%;display:flex;flex-direction:column}
.y9-case-lg .thumb{aspect-ratio:16/9;overflow:hidden}
.y9-case-lg .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--y9-ease)}
.y9-case-lg:hover .thumb img{transform:scale(1.04)}
.y9-case-lg .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.y9-case-lg .body p{color:var(--y9-text-2);font-size:14.5px;line-height:1.8}
.y9-case-sm{padding:22px;height:100%;display:flex;flex-direction:column;gap:12px}
.y9-case-sm h4{font-size:16.5px}
.y9-case-sm p{color:var(--y9-text-2);font-size:14px;line-height:1.75}
.y9-logowall{
  display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;margin-top:34px;
}
.y9-logowall span{
  display:grid;place-items:center;height:64px;border-radius:12px;
  background:#fff;border:1px solid var(--y9-border);
  color:var(--y9-text-3);font-size:14px;font-weight:600;
  filter:grayscale(1);opacity:.78;
  transition:filter .25s var(--y9-ease),opacity .25s var(--y9-ease),color .25s var(--y9-ease),box-shadow .25s var(--y9-ease);
}
.y9-logowall span:hover{filter:grayscale(0);opacity:1;color:var(--y9-primary);box-shadow:var(--y9-sh2)}

/* ============ 11. 最新信息卡片 ============ */
.y9-post-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-sh1);
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease),border-color .22s var(--y9-ease);
}
.y9-post-card:hover{transform:translateY(-3px);box-shadow:var(--y9-sh3);border-color:#D6E2F5}
.y9-post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--y9-bg-alt)}
.y9-post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--y9-ease)}
.y9-post-card:hover .y9-post-thumb img{transform:scale(1.05)}
.y9-post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.y9-post-title{font-size:18px;font-weight:600;line-height:1.5;margin:0}
.y9-post-title a{
  color:var(--y9-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.y9-post-card:hover .y9-post-title a{color:var(--y9-primary)}
.y9-post-desc{
  color:var(--y9-text-2);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.y9-post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--y9-line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--y9-text-3);
}
.y9-post-meta time{font-variant-numeric:tabular-nums}
.y9-post-meta .more{font-weight:600;color:var(--y9-primary)}

.y9-empty{
  min-height:220px;border:1px dashed #CFDCF0;border-radius:var(--y9-r-card);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:36px 20px;text-align:center;
}
.y9-empty i{font-size:44px;color:rgba(31,90,224,.3)}
.y9-empty p{color:var(--y9-text-2);font-size:15px}

/* ============ 12. 价格区 ============ */
.y9-price-switch{
  display:inline-flex;padding:5px;border-radius:999px;background:var(--y9-primary-soft2);
  border:1px solid var(--y9-border);gap:4px;
}
.y9-price-switch button{
  border:0;background:transparent;border-radius:999px;height:38px;padding:0 22px;
  font-size:14px;font-weight:600;color:var(--y9-text-2);cursor:pointer;
  transition:background .2s var(--y9-ease),color .2s var(--y9-ease),box-shadow .2s var(--y9-ease);
}
.y9-price-switch button.active{background:#fff;color:var(--y9-primary);box-shadow:var(--y9-sh1)}
.y9-price-card{
  position:relative;height:100%;padding:30px 26px 28px;display:flex;flex-direction:column;gap:18px;
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-sh1);
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease);
}
.y9-price-card:hover{transform:translateY(-3px);box-shadow:var(--y9-sh3)}
.y9-price-card.recommend{border:2px solid var(--y9-primary);box-shadow:var(--y9-sh2)}
.y9-price-card .tag{position:absolute;right:18px;top:18px}
.y9-price-card h3{font-size:20px}
.y9-price-card .sub{color:var(--y9-text-2);font-size:14px;line-height:1.7}
.y9-price-card .amount{display:flex;align-items:baseline;gap:6px;color:var(--y9-primary);font-variant-numeric:tabular-nums}
.y9-price-card .amount strong{font-size:40px;font-weight:700;line-height:1}
.y9-price-card .amount span{font-size:15px;color:var(--y9-text-3)}
.y9-price-card ul{display:flex;flex-direction:column;gap:12px;margin:6px 0 4px}
.y9-price-card li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--y9-text-2);line-height:1.7}
.y9-price-card li i{color:var(--y9-mint);margin-top:5px;font-size:13px}
.y9-price-card .y9-btn{margin-top:auto}

/* ============ 13. FAQ ============ */
.y9-faq-aside{position:sticky;top:120px}
.y9-faq-aside p{color:var(--y9-text-2);font-size:15px;line-height:1.8;margin-top:14px}
.y9-help-card{
  margin-top:26px;padding:22px;border-radius:var(--y9-r-card);
  background:var(--y9-primary-soft);border:1px solid #D5E2FA;
}
.y9-help-card h4{font-size:16px;margin-bottom:8px}
.y9-help-card p{font-size:14px;color:var(--y9-text-2);line-height:1.75;margin-bottom:16px}
.y9-accordion .accordion-item{
  border:1px solid var(--y9-border);border-radius:var(--y9-r-sm);margin-bottom:12px;
  background:#fff;overflow:hidden;box-shadow:var(--y9-sh1);
}
.y9-accordion .accordion-button{
  font-size:17px;font-weight:600;color:var(--y9-text);background:#fff;
  padding:20px 22px;box-shadow:none;border-radius:var(--y9-r-sm);
}
.y9-accordion .accordion-button:not(.collapsed){color:var(--y9-primary);background:#fff}
.y9-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,90,224,.28)}
.y9-accordion .accordion-button::after{
  width:18px;height:18px;background-size:18px;background-image:none;
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  display:grid;place-items:center;color:var(--y9-text-3);font-size:13px;
  transform:none;transition:transform .2s var(--y9-ease),color .2s var(--y9-ease);
}
.y9-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--y9-primary)}
.y9-accordion .accordion-body{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--y9-text-2);
  border-left:3px solid transparent;
}
.y9-accordion .accordion-collapse.show + .accordion-body,
.y9-accordion .accordion-item:has(.accordion-button:not(.collapsed)){position:relative}
.y9-accordion .accordion-item:has(.accordion-button:not(.collapsed))::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--y9-primary);
}

/* ============ 14. 底部 CTA 带 ============ */
.y9-cta-band{background:var(--y9-primary-soft);border-top:1px solid #DCE7FA;border-bottom:1px solid #DCE7FA}
.y9-cta-band .inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:34px 0;flex-wrap:wrap;
}
.y9-cta-band h3{font-size:22px;margin-bottom:8px}
.y9-cta-band p{color:var(--y9-text-2);font-size:15px}

/* ============ 15. 页脚 ============ */
.y9-footer{background:var(--y9-footer);color:#A7B7CF;padding:72px 0 0}
.y9-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.y9-footer .brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px}
.y9-footer .brand .y9-brand-mark{width:36px;height:36px;font-size:14px;background:linear-gradient(135deg,#2A6BFF,#1F5AE0)}
.y9-footer p{font-size:14px;line-height:1.85;color:#93A6C2;max-width:320px}
.y9-footer ul{display:flex;flex-direction:column;gap:11px}
.y9-footer ul a{color:#A7B7CF;font-size:14px;transition:color .2s var(--y9-ease)}
.y9-footer ul a:hover{color:#fff}
.y9-footer .contact-item{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A7B7CF;line-height:1.7}
.y9-footer .contact-item i{color:#5C87E8;margin-top:5px;font-size:13px}
.y9-footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E93B4;
}
.y9-footer-bottom a{color:#A7B7CF}
.y9-footer-bottom a:hover{color:#fff}
.y9-backtop{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);color:#CBD9EC;background:transparent;cursor:pointer;font-size:13px;
  transition:background .2s var(--y9-ease),color .2s var(--y9-ease);
}
.y9-backtop:hover{background:rgba(255,255,255,.1);color:#fff}

/* ============ 16. 浮动 CTA ============ */
.y9-fab{
  position:fixed;right:26px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:999px;border:0;cursor:pointer;
  background:var(--y9-orange);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--y9-sh3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s var(--y9-ease),transform .24s var(--y9-ease),background .24s var(--y9-ease);
}
.y9-fab.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.y9-fab:hover{background:var(--y9-orange-dark);transform:translateY(-2px)}
.y9-fab .close{
  position:absolute;right:-6px;top:-6px;width:22px;height:22px;border-radius:50%;
  background:#fff;color:var(--y9-text-2);display:grid;place-items:center;
  font-size:11px;border:1px solid var(--y9-border);
}
.y9-fab-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;background:var(--y9-primary);color:#fff;
  align-items:center;justify-content:space-between;padding:0 16px;
  font-size:14px;font-weight:600;
}
.y9-fab-bar button{background:transparent;border:0;color:rgba(255,255,255,.8);cursor:pointer}
.y9-fab-bar .go{background:#fff;color:var(--y9-primary);border-radius:999px;height:36px;padding:0 16px;font-weight:600}

/* ============ 17. 响应式 ============ */
@media (max-width:1199.98px){
  h1{font-size:42px}
  .y9-hero h1{font-size:40px}
  .y9-sec-title{font-size:28px}
}
@media (max-width:991.98px){
  .y9-section{padding:72px 0}
  .y9-hero{padding:56px 0 64px}
  .y9-hero h1{font-size:34px}
  .y9-search{display:none}
  .y9-burger{display:grid}
  .y9-top-actions .y9-btn-accent{display:none}
  .y9-hero-visual{margin-top:38px;padding-bottom:28px}
  .y9-float-card{left:12px}
  .y9-fab{display:none}
  .y9-fab-bar{display:flex}
  body{padding-bottom:56px}
  .y9-price-card.recommend{transform:none}
  .y9-faq-aside{position:static;margin-bottom:32px}
  .y9-logowall{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:767.98px){
  .y9-section{padding:64px 0}
  .y9-sec-head{margin-bottom:32px;flex-direction:column;align-items:flex-start}
  .y9-statbar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .y9-statbar > div:nth-child(2){border-right:0}
  .y9-statbar > div:nth-child(1),
  .y9-statbar > div:nth-child(2){border-bottom:1px solid var(--y9-line)}
  .y9-trust{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:575.98px){
  h1{font-size:28px}
  h2,.y9-sec-title{font-size:24px}
  h3{font-size:18px}
  body{font-size:15px}
  .y9-section{padding:56px 0}
  .y9-hero{padding:44px 0 52px}
  .y9-hero h1{font-size:28px}
  .y9-hero-sub{font-size:15px}
  .y9-hero-actions .y9-btn{width:100%}
  .y9-brand{font-size:17px}
  .y9-brand-mark{width:34px;height:34px;font-size:13px}
  .y9-statbar .num{font-size:26px}
  .y9-price-card .amount strong{font-size:34px}
  .y9-cta-band .inner{flex-direction:column;align-items:flex-start}
  .y9-cta-band .y9-btn{width:100%}
  .y9-logowall{grid-template-columns:repeat(2,minmax(0,1fr))}
  .y9-float-card{left:8px;padding:12px 16px;min-width:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .y9-card:hover,.y9-post-card:hover,.y9-price-card:hover,.y9-btn:hover{transform:none}
}
@media print{
  .y9-header,.y9-fab,.y9-fab-bar,.y9-cta-band{display:none !important}
  body{background:#fff;padding-bottom:0}
}

/* roulang page: article */
/* ============ 1. 设计变量 ============ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-accent:#FF7A2F;
  --y9-mint:#12B5A8;
  --y9-bg:#F5F8FC;
  --y9-surface:#FFFFFF;
  --y9-surface-alt:#EEF3FB;
  --y9-soft:#F2F6FD;
  --y9-text:#10203A;
  --y9-text-2:#5A6B85;
  --y9-text-3:#8A99B0;
  --y9-border:#E4EBF6;
  --y9-line:#EDF2FA;
  --y9-footer:#0E1F3C;
  --y9-radius-lg:16px;
  --y9-radius:12px;
  --y9-radius-sm:10px;
  --y9-shadow-1:0 1px 2px rgba(16,42,86,.06);
  --y9-shadow-2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-shadow-3:0 18px 40px -18px rgba(16,42,86,.30);
  --y9-ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-border-radius-lg:16px;
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
  --bs-font-sans-serif:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
  --bs-body-font-size:16px;
}
/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--y9-text);
  background:var(--y9-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--y9-primary);text-decoration:none;transition:color .2s var(--y9-ease);}
a:hover{color:var(--y9-primary-dark);}
h1,h2,h3,h4,h5{margin:0;color:var(--y9-text);font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(31,90,224,.35);outline-offset:2px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1280px;}}
/* ============ 3. 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--y9-radius-sm);
  font-weight:600;font-size:15px;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .22s var(--y9-ease);white-space:nowrap;
}
.y9-btn-primary{background:var(--y9-primary);color:#fff;box-shadow:var(--y9-shadow-1);}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;box-shadow:var(--y9-shadow-2);transform:translateY(-1px);}
.y9-btn-primary:active{transform:translateY(0);}
.y9-btn-accent{background:var(--y9-accent);color:#fff;box-shadow:var(--y9-shadow-1);}
.y9-btn-accent:hover{background:#F0661C;color:#fff;box-shadow:var(--y9-shadow-2);transform:translateY(-1px);}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border-color:var(--y9-primary);}
.y9-btn-ghost:hover{background:var(--y9-soft);color:var(--y9-primary-dark);border-color:var(--y9-primary-dark);}
.y9-btn-quiet{background:var(--y9-soft);color:var(--y9-primary);}
.y9-btn-quiet:hover{background:#E4EDFC;color:var(--y9-primary-dark);}
.y9-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.y9-btn-lg{height:48px;padding:0 26px;font-size:16px;}
/* ============ 4. 徽章 / 标签 ============ */
.y9-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.y9-badge-blue{background:var(--y9-soft);color:var(--y9-primary);}
.y9-badge-mint{background:rgba(18,181,168,.12);color:#0E8E84;}
.y9-badge-orange{background:rgba(255,122,47,.13);color:#D95B12;}
.y9-tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;
  background:var(--y9-soft);color:var(--y9-primary);font-size:13px;font-weight:500;
  transition:all .2s var(--y9-ease);
}
.y9-tag:hover{background:var(--y9-primary);color:#fff;}
/* ============ 5. 头部与导航 ============ */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--y9-border);
  transition:box-shadow .24s var(--y9-ease);
}
.y9-header.is-scrolled{box-shadow:var(--y9-shadow-2);}
.y9-topbar-inner{
  display:flex;align-items:center;gap:20px;
  height:70px;
}
.y9-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.y9-brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--y9-primary) 0%,var(--y9-primary-deep) 100%);
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--y9-shadow-1);
}
.y9-brand-text{font-size:17px;font-weight:700;color:var(--y9-text);letter-spacing:.01em;}
.y9-search{
  position:relative;flex:0 1 320px;margin-left:auto;
}
.y9-search i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--y9-text-3);font-size:14px;pointer-events:none;
}
.y9-search input{
  width:100%;height:42px;border-radius:999px;border:1px solid transparent;
  background:var(--y9-soft);padding:0 16px 0 40px;font-size:14px;color:var(--y9-text);
  transition:all .2s var(--y9-ease);
}
.y9-search input::placeholder{color:var(--y9-text-3);}
.y9-search input:focus{
  outline:none;background:#fff;border-color:var(--y9-primary);
  box-shadow:0 0 0 4px rgba(31,90,224,.14);
}
.y9-topbar-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.y9-burger{
  display:none;width:44px;height:44px;border-radius:var(--y9-radius-sm);
  border:1px solid var(--y9-border);background:#fff;color:var(--y9-text);
  align-items:center;justify-content:center;
}
.y9-burger:hover{border-color:var(--y9-primary);color:var(--y9-primary);}
.y9-channels{
  border-top:1px solid var(--y9-line);
  background:#fff;
}
.y9-channels-scroll{
  display:flex;align-items:center;gap:10px;height:52px;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:0 20px;max-width:1200px;margin:0 auto;
}
.y9-channels-scroll::-webkit-scrollbar{display:none;}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  background:var(--y9-soft);color:var(--y9-text-2);
  font-size:14px;font-weight:500;border:1px solid transparent;
  transition:all .2s var(--y9-ease);
}
.y9-chip:hover{color:var(--y9-primary);border-color:var(--y9-primary);background:#fff;}
.y9-chip.active{background:var(--y9-primary);color:#fff;border-color:var(--y9-primary);}
.y9-offcanvas{background:#fff;}
.y9-offcanvas .offcanvas-header{border-bottom:1px solid var(--y9-border);}
.y9-offcanvas .y9-mobile-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:15px;font-weight:500;color:var(--y9-text);
  border-bottom:1px solid var(--y9-line);
}
.y9-offcanvas .y9-mobile-list a:hover{color:var(--y9-primary);}
/* ============ 6. 页面头 / 面包屑 ============ */
.y9-crumb-bar{background:var(--y9-soft);border-bottom:1px solid var(--y9-border);}
.y9-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;font-size:14px;color:var(--y9-text-2);
}
.y9-crumb a{color:var(--y9-text-2);}
.y9-crumb a:hover{color:var(--y9-primary);}
.y9-crumb .sep{color:var(--y9-text-3);}
.y9-crumb .current{color:var(--y9-text);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
/* ============ 7. 文章主体 ============ */
.y9-main{padding:40px 0 0;}
.y9-post{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-shadow-1);padding:36px 40px 40px;
}
.y9-post-head{border-bottom:1px solid var(--y9-line);padding-bottom:24px;margin-bottom:28px;}
.y9-post-head h1{
  font-size:36px;line-height:1.35;margin:14px 0 18px;font-weight:700;
}
.y9-post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--y9-text-2);
}
.y9-post-meta .dot{color:var(--y9-border);}
.y9-post-meta .num{font-variant-numeric:tabular-nums;}
.y9-cover{
  margin:24px 0 0;border-radius:var(--y9-radius-lg);overflow:hidden;
  box-shadow:var(--y9-shadow-2);
}
.y9-cover img{width:100%;aspect-ratio:21/9;object-fit:cover;}
/* 正文排版 */
.y9-article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--y9-text);}
.y9-article-body p{margin:0 0 22px;color:#1B2C48;}
.y9-article-body h2{
  position:relative;font-size:23px;line-height:1.5;margin:40px 0 18px;padding-left:14px;
}
.y9-article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;
  background:var(--y9-primary);
}
.y9-article-body h3{font-size:19px;margin:30px 0 14px;font-weight:600;}
.y9-article-body h4{font-size:17px;margin:24px 0 12px;font-weight:600;}
.y9-article-body a{color:var(--y9-primary);text-decoration:underline;text-underline-offset:3px;}
.y9-article-body ul,.y9-article-body ol{margin:0 0 22px;padding-left:4px;}
.y9-article-body ul li,.y9-article-body ol li{
  position:relative;padding-left:22px;margin-bottom:10px;color:#1B2C48;
}
.y9-article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--y9-primary);opacity:.85;
}
.y9-article-body ol{counter-reset:y9ol;}
.y9-article-body ol li::before{
  counter-increment:y9ol;content:counter(y9ol);
  position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--y9-primary);
  line-height:1.9;
}
.y9-article-body blockquote{
  margin:0 0 22px;padding:18px 22px;background:var(--y9-soft);
  border-left:4px solid var(--y9-primary);border-radius:0 var(--y9-radius) var(--y9-radius) 0;
  color:var(--y9-text-2);
}
.y9-article-body blockquote p:last-child{margin-bottom:0;}
.y9-article-body img{border-radius:var(--y9-radius);margin:8px auto 22px;}
.y9-article-body figure{margin:0 0 22px;}
.y9-article-body figcaption{font-size:13px;color:var(--y9-text-3);text-align:center;margin-top:-12px;padding-bottom:12px;}
.y9-article-body table{
  width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.y9-article-body th,.y9-article-body td{
  padding:12px 16px;border-bottom:1px solid var(--y9-line);text-align:left;
}
.y9-article-body th{background:var(--y9-soft);font-weight:600;}
.y9-article-body pre{
  background:var(--y9-bg);border:1px solid var(--y9-border);border-radius:var(--y9-radius);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 22px;
}
.y9-article-body code{
  background:var(--y9-bg);padding:2px 6px;border-radius:6px;font-size:14px;
}
.y9-article-body pre code{background:none;padding:0;}
.y9-article-body hr{border:none;border-top:1px solid var(--y9-border);margin:32px 0;}
/* 空态 */
.y9-empty{
  min-height:220px;border:1px dashed var(--y9-border);border-radius:var(--y9-radius);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 20px;
}
.y9-empty i{font-size:44px;color:rgba(31,90,224,.3);}
.y9-empty p{color:var(--y9-text-2);font-size:15px;margin:0;}
/* 文末 */
.y9-post-foot{margin-top:36px;padding-top:26px;border-top:1px solid var(--y9-line);}
.y9-foot-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}
.y9-tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.y9-share{display:flex;flex-wrap:wrap;gap:10px;}
/* 上下篇 */
.y9-postnav{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:22px;}
.y9-postnav a{
  display:block;background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius);
  padding:18px 20px;box-shadow:var(--y9-shadow-1);transition:all .22s var(--y9-ease);
}
.y9-postnav a:hover{border-color:var(--y9-primary);box-shadow:var(--y9-shadow-3);transform:translateY(-3px);}
.y9-postnav .label{font-size:13px;color:var(--y9-text-3);display:block;margin-bottom:8px;}
.y9-postnav .t{
  font-size:15px;font-weight:600;color:var(--y9-text);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
/* ============ 8. 相关推荐 ============ */
.y9-block{margin-top:48px;}
.y9-block-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;
}
.y9-block-head h2{font-size:24px;}
.y9-block-head .more{font-size:14px;font-weight:600;}
.y9-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.y9-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);overflow:hidden;box-shadow:var(--y9-shadow-1);
  transition:all .22s var(--y9-ease);height:100%;
}
.y9-card:hover{transform:translateY(-3px);box-shadow:var(--y9-shadow-3);border-color:#D6E2F7;}
.y9-card-thumb{overflow:hidden;background:var(--y9-surface-alt);}
.y9-card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--y9-ease);}
.y9-card:hover .y9-card-thumb img{transform:scale(1.04);}
.y9-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.y9-card-body h3{font-size:17px;line-height:1.55;font-weight:600;}
.y9-card-body p{font-size:14px;color:var(--y9-text-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.y9-card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--y9-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--y9-text-3);
}
.y9-card-foot .num{font-variant-numeric:tabular-nums;}
.y9-backlink{margin-top:26px;font-size:14px;font-weight:600;}
/* ============ 9. 侧栏 ============ */
.y9-side{display:flex;flex-direction:column;gap:24px;position:sticky;top:110px;}
.y9-side-card{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-shadow-1);padding:20px 22px;
}
.y9-side-card h3{
  font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--y9-line);
}
.y9-side-list li{border-bottom:1px dashed var(--y9-line);}
.y9-side-list li:last-child{border-bottom:none;}
.y9-side-list a{
  display:block;padding:11px 0;font-size:14px;line-height:1.65;color:var(--y9-text);
  transition:color .2s var(--y9-ease);
}
.y9-side-list a:hover{color:var(--y9-primary);}
.y9-side-list .time{display:block;font-size:12px;color:var(--y9-text-3);margin-top:2px;font-variant-numeric:tabular-nums;}
.y9-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.y9-cloud a{font-size:14px;padding:5px 13px;}
.y9-side-cta{
  background:linear-gradient(135deg,#1F5AE0 0%,#0F3070 100%);
  border-radius:var(--y9-radius-lg);padding:24px 22px;color:#fff;
  box-shadow:var(--y9-shadow-2);
}
.y9-side-cta h3{color:#fff;font-size:17px;border:none;padding:0;margin-bottom:8px;}
.y9-side-cta p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.7;margin-bottom:16px;}
.y9-side-cta .y9-btn{width:100%;}
/* ============ 10. CTA 带 ============ */
.y9-cta-band{background:var(--y9-surface-alt);border-top:1px solid var(--y9-border);margin-top:64px;padding:40px 0;}
.y9-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.y9-cta-inner h2{font-size:24px;margin-bottom:8px;}
.y9-cta-inner p{font-size:15px;color:var(--y9-text-2);margin:0;}
/* ============ 11. 页脚 ============ */
.y9-footer{background:var(--y9-footer);color:#A7B7CF;padding:56px 0 24px;margin-top:0;}
.y9-footer .brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.y9-footer .y9-brand-mark{background:linear-gradient(135deg,#2C6BF0 0%,#1F5AE0 100%);}
.y9-footer p{font-size:14px;line-height:1.8;color:#A7B7CF;margin:0;}
.y9-footer h4{font-size:16px;color:#fff;margin-bottom:16px;font-weight:600;}
.y9-footer ul li{margin-bottom:11px;}
.y9-footer ul a{color:#A7B7CF;font-size:14px;}
.y9-footer ul a:hover{color:#fff;}
.y9-footer .contact-item{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:#A7B7CF;}
.y9-footer .contact-item i{color:#5C8DF6;margin-top:4px;}
.y9-footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8CA0BE;
}
.y9-backtop{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#DCE6F5;
  height:38px;padding:0 16px;border-radius:999px;font-size:13px;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;transition:all .2s var(--y9-ease);
}
.y9-backtop:hover{background:var(--y9-primary);border-color:var(--y9-primary);color:#fff;}
/* ============ 12. 浮动 CTA ============ */
.y9-float-cta{
  position:fixed;right:28px;bottom:32px;z-index:1020;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 22px;border-radius:999px;
  background:var(--y9-accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--y9-shadow-3);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:all .24s var(--y9-ease);
}
.y9-float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.y9-float-cta:hover{background:#F0661C;color:#fff;transform:translateY(-2px);}
.y9-float-close{
  position:absolute;top:-8px;right:-8px;width:24px;height:24px;border-radius:50%;
  background:#fff;color:var(--y9-text-2);border:1px solid var(--y9-border);
  font-size:11px;display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.y9-sticky-cta{display:none;}
/* ============ 13. 响应式 ============ */
@media (max-width:1199px){
  .y9-side{position:static;margin-top:40px;}
}
@media (max-width:991px){
  .y9-search{display:none;}
  .y9-burger{display:inline-flex;}
  .y9-topbar-inner{height:62px;}
  .y9-brand-text{font-size:16px;}
  .y9-channels-scroll{height:50px;padding:0 16px;position:relative;}
  .y9-channels::after{
    content:"";position:absolute;right:0;top:0;width:36px;height:50px;pointer-events:none;
    background:linear-gradient(90deg,rgba(255,255,255,0) 0%,#fff 75%);
  }
  .y9-channels{position:relative;}
  .y9-post{padding:26px 22px 30px;}
  .y9-post-head h1{font-size:27px;}
  .y9-rel-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.75;}
  .y9-main{padding:24px 0 0;}
  .y9-post-head h1{font-size:23px;}
  .y9-article-body h2{font-size:20px;margin-top:32px;}
  .y9-article-body h3{font-size:17px;}
  .y9-cta-inner{flex-direction:column;align-items:flex-start;}
  .y9-postnav{grid-template-columns:1fr;}
  .y9-rel-grid{grid-template-columns:1fr;}
  .y9-block-head h2{font-size:20px;}
  .y9-footer{padding:44px 0 20px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .y9-post{padding:22px 18px 26px;border-radius:14px;}
  .y9-post-head h1{font-size:21px;}
  .y9-btn{width:100%;}
  .y9-btn-sm{width:auto;}
  .y9-foot-row{flex-direction:column;align-items:flex-start;}
  .y9-float-cta{display:none;}
  .y9-sticky-cta{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:1020;
    background:var(--y9-primary);color:#fff;height:56px;padding:0 16px;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -8px 24px -12px rgba(16,42,86,.45);
  }
  .y9-sticky-cta span{font-size:14px;font-weight:600;}
  .y9-sticky-cta a{
    background:#fff;color:var(--y9-primary);font-size:13px;font-weight:700;
    height:36px;padding:0 16px;border-radius:999px;display:inline-flex;align-items:center;
  }
  .y9-sticky-cta .close{
    background:none;border:none;color:rgba(255,255,255,.8);font-size:16px;padding:6px;
    cursor:pointer;
  }
  body{padding-bottom:64px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .y9-card:hover,.y9-btn-primary:hover,.y9-btn-accent:hover,.y9-postnav a:hover{transform:none;}
}

/* roulang page: category1 */
/* ============ 设计令牌 ============ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-accent:#FF7A2F;
  --y9-mint:#12B5A8;
  --y9-bg:#F5F8FC;
  --y9-bg-alt:#EEF3FB;
  --y9-soft:#F2F6FD;
  --y9-white:#FFFFFF;
  --y9-text:#10203A;
  --y9-text-2:#5A6B85;
  --y9-text-3:#8A99B0;
  --y9-border:#E4EBF6;
  --y9-line:#EDF2FA;
  --y9-footer:#0E1F3C;
  --y9-radius-xl:20px;
  --y9-radius-lg:16px;
  --y9-radius:12px;
  --y9-radius-sm:10px;
  --y9-shadow-1:0 1px 2px rgba(16,42,86,.06);
  --y9-shadow-2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-shadow-3:0 18px 40px -18px rgba(16,42,86,.30);
  --y9-ease:cubic-bezier(.2,.7,.3,1);
  --y9-container:1200px;
  /* Bootstrap 变量覆盖 */
  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
  --bs-font-sans-serif:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
  --bs-body-font-size:16px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--y9-text);
  background:var(--y9-bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;height:auto;display:block;object-fit:cover;}
a{color:var(--y9-primary);text-decoration:none;transition:color .2s var(--y9-ease);}
a:hover{color:var(--y9-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--y9-text);font-weight:700;line-height:1.35;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:var(--y9-container);padding-left:16px;padding-right:16px;}
:focus-visible{outline:3px solid rgba(31,90,224,.35);outline-offset:2px;border-radius:6px;}

/* ============ 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--y9-radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s var(--y9-ease);white-space:nowrap;
}
.y9-btn-lg{height:48px;padding:0 26px;font-size:16px;}
.y9-btn-primary{background:var(--y9-primary);color:#fff;box-shadow:var(--y9-shadow-1);}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--y9-shadow-2);}
.y9-btn-primary:active{transform:translateY(0);}
.y9-btn-accent{background:var(--y9-accent);color:#fff;box-shadow:var(--y9-shadow-1);}
.y9-btn-accent:hover{background:#ee6a1f;color:#fff;transform:translateY(-1px);box-shadow:var(--y9-shadow-2);}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border-color:var(--y9-primary);}
.y9-btn-ghost:hover{background:var(--y9-soft);color:var(--y9-primary-dark);border-color:var(--y9-primary-dark);}
.y9-btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ============ 徽章 / 标签 ============ */
.y9-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;font-weight:600;
  padding:7px 12px;border-radius:999px;
}
.y9-pill-blue{background:rgba(31,90,224,.10);color:var(--y9-primary);}
.y9-pill-mint{background:rgba(18,181,168,.12);color:#0E8C82;}
.y9-pill-orange{background:rgba(255,122,47,.12);color:#D95F14;}
.y9-pill-gray{background:var(--y9-soft);color:var(--y9-text-2);}

/* ============ 页头导航 ============ */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--y9-border);
  transition:box-shadow .24s var(--y9-ease);
}
.y9-header.is-scrolled{box-shadow:var(--y9-shadow-2);}
.y9-header-top{
  display:flex;align-items:center;gap:20px;
  height:66px;
}
.y9-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--y9-text);font-weight:700;}
.y9-brand:hover{color:var(--y9-primary);}
.y9-brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--y9-primary),var(--y9-primary-deep));
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
}
.y9-brand-text{font-size:18px;letter-spacing:.01em;}
.y9-search{
  position:relative;display:flex;align-items:center;
  width:320px;height:44px;border-radius:999px;
  background:var(--y9-soft);border:1px solid transparent;
  transition:all .2s var(--y9-ease);margin-left:auto;
}
.y9-search i{position:absolute;left:18px;color:var(--y9-text-3);font-size:14px;}
.y9-search input{
  width:100%;height:100%;border:0;background:transparent;outline:none;
  padding:0 18px 0 44px;font-size:14px;color:var(--y9-text);border-radius:999px;
}
.y9-search input::placeholder{color:var(--y9-text-3);}
.y9-search:focus-within{background:#fff;border-color:var(--y9-primary);box-shadow:0 0 0 4px rgba(31,90,224,.16);}
.y9-header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.y9-hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--y9-border);background:#fff;color:var(--y9-text);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
  transition:all .2s var(--y9-ease);
}
.y9-hamburger:hover{border-color:var(--y9-primary);color:var(--y9-primary);}

/* 频道 Tabs */
.y9-channels{
  border-top:1px solid var(--y9-line);
  background:#fff;
}
.y9-channels-scroll{
  display:flex;align-items:center;gap:10px;
  max-width:var(--y9-container);margin:0 auto;
  padding:0 16px;height:52px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.y9-channels-scroll::-webkit-scrollbar{display:none;}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;background:var(--y9-soft);color:var(--y9-text-2);
  font-size:14px;font-weight:500;border:1px solid transparent;
  transition:all .2s var(--y9-ease);
}
.y9-chip:hover{color:var(--y9-primary);border-color:var(--y9-primary);background:#fff;}
.y9-chip.active{background:var(--y9-primary);color:#fff;font-weight:600;}
.y9-chip.active:hover{background:var(--y9-primary-dark);border-color:var(--y9-primary-dark);color:#fff;}

/* ============ 分类页头 ============ */
.y9-pagehead{
  position:relative;overflow:hidden;
  background-color:#F2F6FD;
  background-image:linear-gradient(135deg,rgba(245,248,252,.94),rgba(234,241,254,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--y9-border);
  padding:56px 0 44px;
}
.y9-crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--y9-text-2);margin-bottom:22px;
}
.y9-crumb a{color:var(--y9-text-2);}
.y9-crumb a:hover{color:var(--y9-primary);}
.y9-crumb .sep{color:var(--y9-text-3);}
.y9-crumb .current{color:var(--y9-primary);font-weight:600;}
.y9-pagehead h1{
  font-size:48px;line-height:1.25;letter-spacing:.01em;max-width:900px;
}
.y9-pagehead .lead{
  margin-top:16px;font-size:16px;line-height:1.85;color:var(--y9-text-2);
  max-width:760px;
}
.y9-subpills{display:flex;gap:10px;margin-top:26px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.y9-subpills::-webkit-scrollbar{display:none;}
.y9-subpills .y9-pill{flex:0 0 auto;background:#fff;color:var(--y9-text-2);border:1px solid var(--y9-border);cursor:default;transition:all .2s var(--y9-ease);}
.y9-subpills .y9-pill:hover{border-color:var(--y9-primary);color:var(--y9-primary);}

/* ============ 通用板块 ============ */
.y9-section{padding:96px 0;}
.y9-section-alt{background:#fff;}
.y9-section-soft{background:var(--y9-bg-alt);}
.y9-section-head{margin-bottom:42px;max-width:760px;}
.y9-section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--y9-primary);
  background:rgba(31,90,224,.09);padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.y9-section-head h2{font-size:32px;line-height:1.35;}
.y9-section-head p{margin-top:14px;color:var(--y9-text-2);font-size:16px;}

/* ============ 主体双栏 ============ */
.y9-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}

/* 条目列表 */
.y9-entries{background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);box-shadow:var(--y9-shadow-1);overflow:hidden;}
.y9-entry{
  display:grid;grid-template-columns:168px minmax(0,1fr);
  gap:22px;align-items:center;
  padding:24px 26px;border-bottom:1px solid var(--y9-line);
  transition:background .22s var(--y9-ease);
}
.y9-entry:last-child{border-bottom:0;}
.y9-entry:hover{background:var(--y9-soft);}
.y9-entry-thumb{
  position:relative;border-radius:var(--y9-radius);overflow:hidden;
  aspect-ratio:16/10;background:var(--y9-bg-alt);
}
.y9-entry-thumb img{width:100%;height:100%;transition:transform .3s var(--y9-ease);}
.y9-entry:hover .y9-entry-thumb img{transform:scale(1.04);}
.y9-entry-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;border:1px solid var(--y9-primary);
  color:var(--y9-primary);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-right:12px;
}
.y9-entry-body{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.y9-entry-title{
  display:flex;align-items:center;font-size:19px;font-weight:600;line-height:1.4;
}
.y9-entry-desc{margin:10px 0 12px;color:var(--y9-text-2);font-size:14.5px;line-height:1.75;}
.y9-entry-tags{display:flex;flex-wrap:wrap;gap:8px;}
.y9-entry-arrow{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--y9-primary);background:var(--y9-soft);
  transition:all .22s var(--y9-ease);
}
.y9-entry:hover .y9-entry-arrow{transform:translateX(4px);background:var(--y9-primary);color:#fff;}

/* 侧栏 */
.y9-side{position:sticky;top:132px;display:flex;flex-direction:column;gap:20px;}
.y9-side-card{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  padding:24px;box-shadow:var(--y9-shadow-1);
}
.y9-side-card h3{font-size:17px;margin-bottom:16px;}
.y9-tree li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border-radius:var(--y9-radius-sm);font-size:14.5px;
  color:var(--y9-text-2);transition:all .2s var(--y9-ease);
}
.y9-tree li a:hover{background:var(--y9-soft);color:var(--y9-primary);}
.y9-tree li.active a{background:rgba(31,90,224,.09);color:var(--y9-primary);font-weight:600;}
.y9-tree li a i{font-size:11px;opacity:.6;}
.y9-side-cta{background:linear-gradient(150deg,#1F5AE0,#0F3070);border:0;color:#fff;}
.y9-side-cta h3{color:#fff;}
.y9-side-cta p{color:rgba(255,255,255,.82);font-size:14px;line-height:1.75;margin-bottom:18px;}
.y9-side-cta .y9-btn{width:100%;background:#fff;color:var(--y9-primary);}
.y9-side-cta .y9-btn:hover{background:var(--y9-accent);color:#fff;}

/* ============ 使用场景 ============ */
.y9-scenes{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
.y9-scene{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  padding:28px;box-shadow:var(--y9-shadow-1);
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease);
  display:flex;flex-direction:column;
}
.y9-scene:hover{transform:translateY(-3px);box-shadow:var(--y9-shadow-3);}
.y9-scene.is-feature{background:linear-gradient(160deg,#fff,#F2F6FD 92%);border-color:#CFDDF7;}
.y9-scene-icon{
  width:44px;height:44px;border-radius:12px;display:inline-flex;
  align-items:center;justify-content:center;font-size:17px;
  background:rgba(31,90,224,.10);color:var(--y9-primary);margin-bottom:18px;
}
.y9-scene.is-feature .y9-scene-icon{background:var(--y9-primary);color:#fff;}
.y9-scene h3{font-size:19px;margin-bottom:10px;}
.y9-scene p{color:var(--y9-text-2);font-size:14.5px;line-height:1.8;margin-bottom:18px;}
.y9-scene ul{margin-top:auto;display:flex;flex-direction:column;gap:9px;}
.y9-scene ul li{display:flex;gap:10px;font-size:14px;color:var(--y9-text-2);}
.y9-scene ul li i{color:var(--y9-mint);margin-top:6px;font-size:12px;}

/* ============ 流程时间轴 ============ */
.y9-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.y9-step{position:relative;padding-top:26px;}
.y9-step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--y9-border);
}
.y9-step::after{
  content:"";position:absolute;top:-4px;left:0;width:10px;height:10px;border-radius:50%;
  background:var(--y9-primary);box-shadow:0 0 0 4px rgba(31,90,224,.14);
}
.y9-step-no{
  font-size:13px;font-weight:700;color:var(--y9-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.y9-step h3{font-size:18px;margin:10px 0 8px;}
.y9-step p{color:var(--y9-text-2);font-size:14.5px;line-height:1.8;margin:0;}

/* ============ FAQ ============ */
.y9-faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start;}
.y9-faq-aside h2{font-size:30px;line-height:1.35;}
.y9-faq-aside > p{margin-top:14px;color:var(--y9-text-2);font-size:15px;}
.y9-faq-note{
  margin-top:24px;background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);padding:22px;box-shadow:var(--y9-shadow-1);
}
.y9-faq-note strong{display:block;font-size:16px;margin-bottom:8px;}
.y9-faq-note p{font-size:14px;color:var(--y9-text-2);margin-bottom:16px;}
.y9-faq .accordion-item{
  border:0;background:#fff;border-radius:var(--y9-radius);overflow:hidden;
  box-shadow:var(--y9-shadow-1);margin-bottom:14px;
}
.y9-faq .accordion-button{
  position:relative;width:100%;padding:20px 56px 20px 22px;
  font-size:17px;font-weight:600;color:var(--y9-text);background:#fff;
  border:0;box-shadow:none!important;transition:color .2s var(--y9-ease);
}
.y9-faq .accordion-button:not(.collapsed){color:var(--y9-primary);}
.y9-faq .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--y9-primary);
}
.y9-faq .accordion-button::after{
  width:14px;height:14px;background-size:14px;margin-right:2px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F5AE0'%3E%3Cpath d='M8 11.5 2.5 6l1.1-1.1L8 9.3l4.4-4.4L13.5 6z'/%3E%3C/svg%3E");
  transition:transform .18s var(--y9-ease);
}
.y9-faq .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231544B0'%3E%3Cpath d='M8 11.5 2.5 6l1.1-1.1L8 9.3l4.4-4.4L13.5 6z'/%3E%3C/svg%3E");
}
.y9-faq .accordion-body{
  padding:0 22px 22px 22px;font-size:15px;line-height:1.85;color:var(--y9-text-2);
  animation:y9Fade .18s var(--y9-ease);
}
@keyframes y9Fade{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ 底部 CTA 带 ============ */
.y9-cta-band{background:var(--y9-soft);border-top:1px solid var(--y9-border);padding:38px 0;}
.y9-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.y9-cta-inner h2{font-size:24px;}
.y9-cta-inner p{margin:8px 0 0;color:var(--y9-text-2);font-size:14.5px;}

/* ============ 页脚 ============ */
.y9-footer{background:var(--y9-footer);color:#A7B7CF;padding:72px 0 0;font-size:14px;}
.y9-footer .brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.y9-footer .y9-brand-mark{background:linear-gradient(135deg,#2E6BF0,#1544B0);}
.y9-footer p{color:#A7B7CF;line-height:1.8;font-size:14px;}
.y9-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;}
.y9-footer ul{display:flex;flex-direction:column;gap:11px;}
.y9-footer ul li a{color:#A7B7CF;font-size:14px;}
.y9-footer ul li a:hover{color:#fff;}
.y9-footer .contact-item{display:flex;gap:10px;align-items:flex-start;color:#A7B7CF;}
.y9-footer .contact-item i{margin-top:5px;color:#5E7BB0;}
.y9-footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.y9-backtop{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(255,255,255,.22);color:#fff;
  height:38px;padding:0 16px;border-radius:999px;font-size:13px;cursor:pointer;
  transition:all .2s var(--y9-ease);
}
.y9-backtop:hover{background:var(--y9-primary);border-color:var(--y9-primary);}

/* ============ 浮动 CTA ============ */
.y9-float{
  position:fixed;right:28px;bottom:28px;z-index:1020;
  display:flex;align-items:center;gap:6px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .24s var(--y9-ease),transform .24s var(--y9-ease);
}
.y9-float.is-visible{opacity:1;transform:none;pointer-events:auto;}
.y9-float.is-hidden{display:none;}
.y9-float-btn{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 22px;
  border-radius:999px;background:var(--y9-accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--y9-shadow-3);transition:all .22s var(--y9-ease);
}
.y9-float-btn:hover{background:#ee6a1f;color:#fff;transform:translateY(-2px);}
.y9-float-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--y9-border);
  background:#fff;color:var(--y9-text-3);cursor:pointer;font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s var(--y9-ease);
}
.y9-float-close:hover{color:var(--y9-primary);border-color:var(--y9-primary);}

/* ============ 移动端抽屉 ============ */
.offcanvas.y9-drawer{max-width:320px;}
.y9-drawer .offcanvas-header{border-bottom:1px solid var(--y9-border);}
.y9-drawer .drawer-links{display:flex;flex-direction:column;gap:6px;padding:18px;}
.y9-drawer .drawer-links a{
  padding:12px 14px;border-radius:var(--y9-radius-sm);color:var(--y9-text-2);font-size:15px;
}
.y9-drawer .drawer-links a:hover{background:var(--y9-soft);color:var(--y9-primary);}
.y9-drawer .drawer-links a.active{background:rgba(31,90,224,.09);color:var(--y9-primary);font-weight:600;}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .y9-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
}
@media (max-width:1199.98px){
  .y9-layout{grid-template-columns:minmax(0,1fr);}
  .y9-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .y9-side-card{flex:1 1 280px;}
  .y9-scenes{grid-template-columns:1fr 1fr;}
  .y9-scene.is-feature{grid-column:span 2;}
}
@media (max-width:991.98px){
  .y9-section{padding:72px 0;}
  .y9-search{display:none;}
  .y9-hamburger{display:inline-flex;}
  .y9-pagehead{padding:40px 0 34px;}
  .y9-pagehead h1{font-size:34px;}
  .y9-steps{grid-template-columns:1fr 1fr;}
  .y9-faq-layout{grid-template-columns:1fr;gap:32px;}
  .y9-float{
    right:0;left:0;bottom:0;
    display:block;padding:0;
  }
  .y9-float-btn{
    width:100%;height:56px;border-radius:0;justify-content:center;
    box-shadow:0 -6px 20px -10px rgba(16,42,86,.35);
  }
  .y9-float-btn:hover{transform:none;}
  .y9-float-close{
    position:absolute;right:8px;top:-46px;width:32px;height:32px;
    box-shadow:var(--y9-shadow-1);
  }
  body{padding-bottom:56px;}
}
@media (max-width:767.98px){
  .y9-section{padding:56px 0;}
  .y9-section-head h2{font-size:24px;}
  .y9-pagehead h1{font-size:30px;}
  .y9-entry{grid-template-columns:1fr;gap:16px;padding:20px;}
  .y9-entry-thumb{aspect-ratio:16/9;}
  .y9-entry-body{flex-direction:column;align-items:flex-start;gap:0;}
  .y9-entry-arrow{width:auto;height:38px;padding:0 14px;font-size:13px;gap:6px;margin-top:14px;}
  .y9-scenes{grid-template-columns:1fr;}
  .y9-scene.is-feature{grid-column:span 1;}
  .y9-steps{grid-template-columns:1fr;gap:28px;}
  .y9-cta-inner{flex-direction:column;align-items:flex-start;}
  .y9-cta-inner .y9-btn{width:100%;}
  .y9-footer{padding-top:56px;}
  .y9-footer-bottom{flex-direction:column;align-items:flex-start;}
  .y9-side{flex-direction:column;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .y9-header-top{height:60px;gap:12px;}
  .y9-brand-text{font-size:16px;}
  .y9-brand-mark{width:34px;height:34px;font-size:13px;}
  .y9-pagehead h1{font-size:26px;}
  .y9-entry-title{font-size:17px;}
  .y9-entry-num{width:26px;height:26px;font-size:12px;}
  .y9-faq .accordion-button{font-size:16px;padding:18px 48px 18px 18px;}
}
@media print{
  .y9-header,.y9-float,.y9-cta-band,.y9-backtop{display:none!important;}
  body{background:#fff;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;}
  .y9-entry:hover .y9-entry-thumb img{transform:none;}
  .y9-scene:hover{transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-orange:#FF7A2F;
  --y9-mint:#12B5A8;
  --y9-bg:#F5F8FC;
  --y9-surface:#FFFFFF;
  --y9-alt:#EEF3FB;
  --y9-soft:#F2F6FD;
  --y9-text:#10203A;
  --y9-text-2:#5A6B85;
  --y9-text-3:#8A99B0;
  --y9-border:#E4EBF6;
  --y9-line:#EDF2FA;
  --y9-dark:#0E1F3C;
  --y9-footer-text:#A7B7CF;

  --y9-radius-lg:16px;
  --y9-radius:12px;
  --y9-radius-sm:10px;
  --y9-pill:999px;

  --y9-l1:0 1px 2px rgba(16,42,86,.06);
  --y9-l2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-l3:0 18px 40px -18px rgba(16,42,86,.30);

  --y9-ease:cubic-bezier(.2,.7,.3,1);
  --y9-tr:220ms var(--y9-ease);

  --y9-font:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,-apple-system,'Segoe UI',sans-serif;

  /* Bootstrap 变量覆盖 */
  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
  --bs-font-sans-serif:var(--y9-font);
  --bs-body-font-family:var(--y9-font);
  --bs-body-font-size:16px;
  --bs-emphasis-color:#10203A;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--y9-font);
  font-size:16px;
  line-height:1.8;
  color:var(--y9-text);
  background:var(--y9-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--y9-primary);text-decoration:none;transition:color var(--y9-tr),text-underline-offset var(--y9-tr);}
a:hover{color:var(--y9-primary-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--y9-text);letter-spacing:.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(31,90,224,.35);outline-offset:2px;}

.container{max-width:1200px;padding-left:16px;padding-right:16px;margin-left:auto;margin-right:auto;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ============ 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:none;border-radius:var(--y9-radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform var(--y9-tr),box-shadow var(--y9-tr),background var(--y9-tr),color var(--y9-tr),border-color var(--y9-tr);
  white-space:nowrap;text-decoration:none;
}
.y9-btn:hover{text-decoration:none;}
.y9-btn-primary{background:var(--y9-primary);color:#fff;box-shadow:var(--y9-l1);}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;box-shadow:var(--y9-l2);transform:translateY(-1px);}
.y9-btn-primary:active{transform:translateY(0);box-shadow:var(--y9-l1);}
.y9-btn-accent{background:var(--y9-orange);color:#fff;box-shadow:var(--y9-l1);}
.y9-btn-accent:hover{background:#F0691F;color:#fff;box-shadow:var(--y9-l2);transform:translateY(-1px);}
.y9-btn-accent:active{transform:translateY(0);}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border:1px solid var(--y9-primary);}
.y9-btn-ghost:hover{background:var(--y9-soft);color:var(--y9-primary-dark);border-color:var(--y9-primary-dark);}
.y9-btn-lg{height:48px;padding:0 26px;font-size:16px;}

/* ============ 徽章 ============ */
.y9-badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 11px;border-radius:var(--y9-pill);
  font-size:12px;font-weight:600;line-height:1.5;
}
.y9-badge-blue{background:rgba(31,90,224,.10);color:var(--y9-primary-dark);}
.y9-badge-mint{background:rgba(18,181,168,.12);color:#0B8C82;}
.y9-badge-orange{background:rgba(255,122,47,.13);color:#D25812;}

/* ============ 头部导航 ============ */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--y9-border);
  transition:box-shadow var(--y9-tr);
}
.y9-header.is-scrolled{box-shadow:var(--y9-l2);}
.y9-nav-main{padding:12px 0;}
.y9-nav-inner{display:flex;align-items:center;gap:20px;}
.y9-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--y9-text);}
.y9-logo:hover{text-decoration:none;color:var(--y9-text);}
.y9-brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--y9-primary) 0%,var(--y9-primary-deep) 100%);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.y9-logo-text{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.y9-search{
  position:relative;flex:1 1 auto;max-width:320px;
}
.y9-search i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--y9-text-3);font-size:14px;pointer-events:none;
}
.y9-search input{
  width:100%;height:44px;padding:0 16px 0 40px;
  border:1px solid transparent;border-radius:var(--y9-pill);
  background:var(--y9-soft);color:var(--y9-text);
  font-size:14px;transition:background var(--y9-tr),border-color var(--y9-tr),box-shadow var(--y9-tr);
}
.y9-search input::placeholder{color:var(--y9-text-3);}
.y9-search input:focus{
  outline:none;background:#fff;border-color:var(--y9-primary);
  box-shadow:0 0 0 4px rgba(31,90,224,.14);
}
.y9-nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.y9-burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:var(--y9-soft);border:1px solid var(--y9-border);border-radius:var(--y9-radius-sm);
  color:var(--y9-text);font-size:17px;cursor:pointer;transition:background var(--y9-tr);
}
.y9-burger:hover{background:var(--y9-alt);}

/* 频道 Tabs */
.y9-channels{
  position:relative;border-top:1px solid var(--y9-line);
  background:#fff;
}
.y9-channels-scroll{
  display:flex;align-items:center;gap:10px;
  height:52px;padding:0 16px;max-width:1200px;margin:0 auto;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.y9-channels-scroll::-webkit-scrollbar{display:none;}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--y9-pill);border:1px solid transparent;
  background:var(--y9-soft);color:var(--y9-text-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--y9-tr),color var(--y9-tr),border-color var(--y9-tr);
}
.y9-chip:hover{background:#fff;border-color:var(--y9-primary);color:var(--y9-primary-dark);text-decoration:none;}
.y9-chip.active{background:var(--y9-primary);color:#fff;font-weight:600;box-shadow:0 6px 16px -8px rgba(31,90,224,.7);}
.y9-chip.active:hover{background:var(--y9-primary-dark);color:#fff;border-color:transparent;}

/* 移动端抽屉 */
.y9-offcanvas{background:#fff;border-right:1px solid var(--y9-border);}
.y9-offcanvas .offcanvas-header{border-bottom:1px solid var(--y9-line);padding:16px 20px;}
.y9-offcanvas .offcanvas-body{padding:16px 20px;}
.y9-offcanvas .offcanvas-title{font-size:17px;font-weight:700;}
.y9-menu-list li+li{margin-top:6px;}
.y9-menu-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:var(--y9-radius);
  color:var(--y9-text);font-size:15px;font-weight:500;
  transition:background var(--y9-tr),color var(--y9-tr);
}
.y9-menu-list a:hover{background:var(--y9-soft);color:var(--y9-primary-dark);text-decoration:none;}
.y9-menu-list a.active{background:var(--y9-soft);color:var(--y9-primary);font-weight:600;}

/* ============ 页头 ============ */
.y9-pagehead{
  position:relative;
  background:var(--y9-soft);
  border-bottom:1px solid var(--y9-border);
  padding:44px 0 40px;
  overflow:hidden;
}
.y9-pagehead::after{
  content:"";position:absolute;right:-80px;top:-80px;
  width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,90,224,.10) 0%,rgba(31,90,224,0) 68%);
  pointer-events:none;
}
.y9-pagehead .container{position:relative;z-index:2;}
.y9-backlink{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;color:var(--y9-text-2);margin-bottom:16px;
}
.y9-backlink:hover{color:var(--y9-primary);}
.y9-pagehead h1{
  font-size:48px;line-height:1.25;letter-spacing:.01em;margin-bottom:14px;
}
.y9-pagehead .y9-lead{
  font-size:16px;color:var(--y9-text-2);max-width:760px;margin-bottom:22px;
}
.y9-pills{display:flex;flex-wrap:nowrap;gap:10px;overflow-x:auto;scrollbar-width:none;}
.y9-pills::-webkit-scrollbar{display:none;}
.y9-pills a{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 15px;
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-pill);
  font-size:13px;color:var(--y9-text-2);font-weight:500;
  transition:border-color var(--y9-tr),color var(--y9-tr),box-shadow var(--y9-tr);
}
.y9-pills a:hover{border-color:var(--y9-primary);color:var(--y9-primary-dark);box-shadow:var(--y9-l1);text-decoration:none;}

/* ============ 通用区块 ============ */
.y9-section{padding:96px 0;}
.y9-section.alt{background:var(--y9-alt);}
.y9-section.white{background:#fff;}
.y9-section-head{margin-bottom:40px;max-width:720px;}
.y9-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--y9-primary);
  letter-spacing:.06em;margin-bottom:12px;
}
.y9-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--y9-primary);}
.y9-section-head h2{font-size:32px;line-height:1.35;margin-bottom:12px;}
.y9-section-head p{font-size:15px;color:var(--y9-text-2);margin:0;}

/* ============ 工具栏 ============ */
.y9-toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding:16px 20px;margin-bottom:28px;
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius);
  box-shadow:var(--y9-l1);
}
.y9-toolbar .y9-count{font-size:14px;color:var(--y9-text-2);}
.y9-toolbar .y9-count strong{color:var(--y9-primary);font-size:17px;font-variant-numeric:tabular-nums;}
.y9-toolbar-right{display:flex;align-items:center;gap:12px;}
.y9-select-wrap{position:relative;display:inline-flex;align-items:center;}
.y9-select-wrap i{
  position:absolute;right:14px;color:var(--y9-text-3);font-size:12px;pointer-events:none;
}
.y9-select{
  appearance:none;height:44px;padding:0 38px 0 16px;
  border:1px solid var(--y9-border);border-radius:var(--y9-radius-sm);
  background:#fff;color:var(--y9-text);font-size:14px;cursor:pointer;
  transition:border-color var(--y9-tr),box-shadow var(--y9-tr);
}
.y9-select:focus{outline:none;border-color:var(--y9-primary);box-shadow:0 0 0 4px rgba(31,90,224,.14);}
.y9-viewtoggle{display:flex;border:1px solid var(--y9-border);border-radius:var(--y9-radius-sm);overflow:hidden;}
.y9-viewtoggle button{
  width:44px;height:44px;border:none;background:#fff;color:var(--y9-text-3);
  cursor:pointer;font-size:14px;transition:background var(--y9-tr),color var(--y9-tr);
}
.y9-viewtoggle button+button{border-left:1px solid var(--y9-border);}
.y9-viewtoggle button.active{background:var(--y9-soft);color:var(--y9-primary);}
.y9-viewtoggle button:hover{color:var(--y9-primary);}

/* ============ 场景瀑布卡 ============ */
.y9-scene-grid{column-count:2;column-gap:24px;}
.y9-scene-card{
  break-inside:avoid;display:block;width:100%;
  margin:0 0 24px;background:#fff;
  border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-l1);overflow:hidden;
  transition:transform var(--y9-tr),box-shadow var(--y9-tr),border-color var(--y9-tr);
}
.y9-scene-card:hover{transform:translateY(-3px);box-shadow:var(--y9-l3);border-color:#D6E2F5;}
.y9-scene-card .y9-thumb{
  width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--y9-alt);
}
.y9-scene-body{padding:24px 24px 22px;}
.y9-scene-body h3{
  font-size:19px;font-weight:600;line-height:1.5;margin:12px 0 10px;
}
.y9-scene-card:hover h3{color:var(--y9-primary);}
.y9-scene-body p{font-size:14px;line-height:1.8;color:var(--y9-text-2);margin-bottom:16px;}
.y9-scene-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding-top:14px;border-top:1px solid var(--y9-line);
  font-size:13px;color:var(--y9-text-3);
}
.y9-scene-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--y9-border);}
.y9-scene-meta .num{font-variant-numeric:tabular-nums;}

/* ============ 标签云 ============ */
.y9-cloud{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:28px;background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);box-shadow:var(--y9-l1);
}
.y9-cloud a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--y9-pill);background:var(--y9-soft);
  color:var(--y9-text-2);font-weight:500;
  transition:background var(--y9-tr),color var(--y9-tr),transform var(--y9-tr);
}
.y9-cloud a:hover{background:var(--y9-primary);color:#fff;text-decoration:none;transform:translateY(-2px);}
.y9-cloud a.sz-sm{font-size:13px;}
.y9-cloud a.sz-md{font-size:15px;color:var(--y9-primary-dark);background:rgba(31,90,224,.08);}
.y9-cloud a.sz-lg{font-size:17px;font-weight:600;color:#fff;background:var(--y9-primary);}

/* ============ 流程 ============ */
.y9-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.y9-step{
  position:relative;padding:26px 22px;background:#fff;
  border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-l1);transition:transform var(--y9-tr),box-shadow var(--y9-tr);
}
.y9-step:hover{transform:translateY(-3px);box-shadow:var(--y9-l3);}
.y9-step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  border:1.5px solid var(--y9-primary);color:var(--y9-primary);
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.y9-step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.y9-step p{font-size:14px;color:var(--y9-text-2);line-height:1.8;margin:0;}

/* ============ 自查清单 ============ */
.y9-check{
  background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);box-shadow:var(--y9-l1);overflow:hidden;
}
.y9-check li{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 26px;border-bottom:1px solid var(--y9-line);
  transition:background var(--y9-tr);
}
.y9-check li:last-child{border-bottom:none;}
.y9-check li:hover{background:var(--y9-soft);}
.y9-check .ic{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--y9-soft);color:var(--y9-primary);font-size:17px;
}
.y9-check h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.y9-check p{font-size:14px;color:var(--y9-text-2);line-height:1.8;margin:0;}

/* ============ FAQ ============ */
.y9-faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}
.y9-faq-aside h2{font-size:28px;line-height:1.35;margin-bottom:12px;}
.y9-faq-aside>p{font-size:15px;color:var(--y9-text-2);margin-bottom:22px;}
.y9-faq-card{
  padding:22px;background:var(--y9-soft);
  border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
}
.y9-faq-card h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.y9-faq-card p{font-size:14px;color:var(--y9-text-2);margin-bottom:16px;}
.y9-accordion .accordion-item{
  background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius) !important;margin-bottom:14px;
  overflow:hidden;box-shadow:var(--y9-l1);
  transition:box-shadow var(--y9-tr),border-color var(--y9-tr);
}
.y9-accordion .accordion-item:last-child{margin-bottom:0;}
.y9-accordion .accordion-item:hover{box-shadow:var(--y9-l2);}
.y9-accordion .accordion-button{
  position:relative;background:#fff;box-shadow:none !important;
  padding:20px 56px 20px 24px;
  font-size:17px;font-weight:600;color:var(--y9-text);line-height:1.6;
  border-radius:0;
}
.y9-accordion .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--y9-text-3);
  transition:transform var(--y9-tr),color var(--y9-tr);
}
.y9-accordion .accordion-button:not(.collapsed){
  color:var(--y9-primary-dark);background:#fff;
}
.y9-accordion .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(180deg);color:var(--y9-primary);
}
.y9-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.y9-accordion .accordion-body{
  padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--y9-text-2);
}
.y9-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--y9-primary);
}
.y9-accordion .accordion-collapse{transition:height .24s var(--y9-ease);}

/* ============ CTA 带 ============ */
.y9-cta{
  background:var(--y9-soft);border-top:1px solid var(--y9-border);border-bottom:1px solid var(--y9-border);
  padding:44px 0;
}
.y9-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.y9-cta h2{font-size:24px;line-height:1.4;margin-bottom:8px;}
.y9-cta p{font-size:15px;color:var(--y9-text-2);margin:0;max-width:620px;}
.y9-cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.y9-footer{background:var(--y9-dark);color:var(--y9-footer-text);padding:64px 0 0;}
.y9-footer .brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;
}
.y9-footer .brand .y9-brand-mark{
  background:linear-gradient(135deg,var(--y9-primary) 0%,#12B5A8 100%);
}
.y9-footer p{font-size:14px;line-height:1.8;color:var(--y9-footer-text);margin:0;max-width:340px;}
.y9-footer h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px;}
.y9-footer ul li{margin-bottom:10px;font-size:14px;}
.y9-footer ul li a{color:var(--y9-footer-text);font-size:14px;}
.y9-footer ul li a:hover{color:#fff;text-decoration:none;}
.y9-footer .contact-item{display:flex;align-items:flex-start;gap:8px;color:var(--y9-footer-text);font-size:14px;}
.y9-footer .contact-item i{color:var(--y9-mint);margin-top:5px;font-size:13px;}
.y9-footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA2BE;
}
.y9-backtop{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 16px;border-radius:var(--y9-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  color:#D7E2F2;font-size:13px;cursor:pointer;
  transition:background var(--y9-tr),color var(--y9-tr);
}
.y9-backtop:hover{background:rgba(255,255,255,.16);color:#fff;}

/* ============ 浮动 CTA ============ */
.y9-floatcta{
  position:fixed;right:24px;bottom:32px;z-index:1040;
  display:flex;align-items:center;gap:6px;
  background:var(--y9-orange);border-radius:var(--y9-pill);
  box-shadow:var(--y9-l3);padding:4px 6px 4px 4px;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity var(--y9-tr),transform var(--y9-tr);
}
.y9-floatcta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.y9-floatcta-link{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--y9-pill);
  color:#fff;font-size:15px;font-weight:600;
}
.y9-floatcta-link:hover{color:#fff;text-decoration:none;transform:translateY(-2px);transition:transform var(--y9-tr);}
.y9-floatcta-close{
  width:34px;height:34px;border-radius:50%;border:none;
  background:rgba(255,255,255,.22);color:#fff;font-size:13px;cursor:pointer;
  transition:background var(--y9-tr);
}
.y9-floatcta-close:hover{background:rgba(255,255,255,.36);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .y9-container-gap{padding-top:0;}
}
@media (max-width:991.98px){
  .y9-search{display:none;}
  .y9-burger{display:inline-flex;}
  .y9-nav-actions .y9-btn-accent{display:none;}
  .y9-pagehead h1{font-size:36px;}
  .y9-section{padding:72px 0;}
  .y9-section-head h2{font-size:28px;}
  .y9-steps{grid-template-columns:repeat(2,1fr);}
  .y9-faq-layout{grid-template-columns:1fr;gap:28px;}
  .y9-cta-inner{flex-direction:column;align-items:flex-start;}
  /* 浮动 CTA 转吸底条 */
  .y9-floatcta{
    left:0;right:0;bottom:0;border-radius:0;padding:0;
    background:var(--y9-primary);justify-content:center;
    transform:translateY(100%);
  }
  .y9-floatcta.is-visible{transform:translateY(0);}
  .y9-floatcta-link{height:56px;width:100%;justify-content:center;padding:0 24px;}
  .y9-floatcta-close{position:absolute;right:8px;top:11px;background:rgba(255,255,255,.18);}
  body{padding-bottom:56px;}
}
@media (max-width:767.98px){
  .y9-pagehead{padding:32px 0 30px;}
  .y9-pagehead h1{font-size:30px;}
  .y9-scene-grid{column-count:1;}
  .y9-section{padding:56px 0;}
  .y9-section-head h2{font-size:24px;}
  .y9-section-head{margin-bottom:28px;}
  .y9-steps{grid-template-columns:1fr;}
  .y9-toolbar{padding:14px 16px;}
  .y9-toolbar-right{width:100%;justify-content:space-between;}
  .y9-cta{padding:36px 0;}
  .y9-cta h2{font-size:20px;}
  .y9-footer{padding-top:48px;}
  .y9-footer .brand{margin-top:8px;}
  .y9-faq-aside h2{font-size:22px;}
}
@media (max-width:575.98px){
  .y9-logo-text{font-size:16px;}
  .y9-brand-mark{width:36px;height:36px;font-size:14px;border-radius:10px;}
  .y9-scene-body{padding:20px 18px 18px;}
  .y9-cloud{padding:20px;gap:10px;}
  .y9-check li{padding:18px 16px;gap:14px;}
  .y9-cta-actions{width:100%;}
  .y9-cta-actions .y9-btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .y9-scene-card:hover,.y9-step:hover,.y9-cloud a:hover,.y9-btn:hover{transform:none;}
}

/* roulang page: category3 */
/* ============ 设计令牌 ============ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-primary-soft:#EAF1FE;
  --y9-primary-soft2:#F2F6FD;
  --y9-accent:#FF7A2F;
  --y9-accent-dark:#E86418;
  --y9-mint:#12B5A8;
  --y9-bg:#F5F8FC;
  --y9-alt:#EEF3FB;
  --y9-surface:#FFFFFF;
  --y9-ink:#10203A;
  --y9-ink-2:#5A6B85;
  --y9-ink-3:#8A99B0;
  --y9-line:#E4EBF6;
  --y9-line-2:#EDF2FA;
  --y9-r-card:16px;
  --y9-r-sm:12px;
  --y9-r-btn:10px;
  --y9-r-pill:999px;
  --y9-l1:0 1px 2px rgba(16,42,86,.06);
  --y9-l2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-l3:0 18px 40px -18px rgba(16,42,86,.30);
  --y9-ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
  --bs-font-sans-serif:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
  --bs-body-font-size:16px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--y9-ink);
  background:var(--y9-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--y9-primary);text-decoration:none;transition:color .2s var(--y9-ease),background-color .2s var(--y9-ease),border-color .2s var(--y9-ease);}
a:hover{color:var(--y9-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;letter-spacing:.01em;color:var(--y9-ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,90,224,.35);border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ============ 顶部导航 ============ */
.y9-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--y9-line);transition:box-shadow .22s var(--y9-ease);}
.y9-header.is-scrolled{box-shadow:var(--y9-l2);}
.y9-nav-inner{display:flex;align-items:center;gap:22px;min-height:74px;}
.y9-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--y9-ink);white-space:nowrap;}
.y9-brand:hover{color:var(--y9-primary);}
.y9-brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--y9-primary),var(--y9-primary-deep));
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
}
.y9-search{
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 16px;flex:0 1 320px;
  background:var(--y9-primary-soft2);border:1px solid transparent;border-radius:var(--y9-r-pill);
  transition:border-color .2s var(--y9-ease),box-shadow .2s var(--y9-ease),background-color .2s var(--y9-ease);
}
.y9-search:focus-within{border-color:var(--y9-primary);background:#fff;box-shadow:0 0 0 4px rgba(31,90,224,.14);}
.y9-search i{color:var(--y9-ink-3);font-size:14px;}
.y9-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--y9-ink);}
.y9-search input::placeholder{color:var(--y9-ink-3);}
.y9-nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.y9-burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--y9-line);border-radius:12px;
  background:#fff;color:var(--y9-primary);font-size:17px;cursor:pointer;
  transition:border-color .2s var(--y9-ease),background-color .2s var(--y9-ease);
}
.y9-burger:hover{border-color:var(--y9-primary);background:var(--y9-primary-soft);}

/* 频道 Tabs */
.y9-channels{border-top:1px solid var(--y9-line-2);}
.y9-channels-scroll{
  display:flex;align-items:center;gap:10px;
  height:52px;max-width:1200px;margin:0 auto;padding:0 24px;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.y9-channels-scroll::-webkit-scrollbar{display:none;}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:var(--y9-r-pill);
  background:var(--y9-primary-soft2);color:var(--y9-ink-2);
  font-size:14px;font-weight:500;
  border:1px solid transparent;white-space:nowrap;
  transition:all .2s var(--y9-ease);
}
.y9-chip:hover{color:var(--y9-primary);border-color:var(--y9-primary);background:#fff;}
.y9-chip.active{background:var(--y9-primary);color:#fff;font-weight:600;}

/* 移动端抽屉 */
.y9-offcanvas{width:300px;}
.y9-offcanvas .offcanvas-header{border-bottom:1px solid var(--y9-line);}
.y9-offcanvas .offcanvas-title{font-size:17px;font-weight:700;}
.y9-offcanvas .y9-drawer-list li+li{margin-top:6px;}
.y9-offcanvas .y9-drawer-list a{
  display:block;padding:11px 14px;border-radius:10px;
  font-size:15px;color:var(--y9-ink);font-weight:500;
}
.y9-offcanvas .y9-drawer-list a:hover{background:var(--y9-primary-soft);color:var(--y9-primary);}
.y9-offcanvas .y9-drawer-list a.active{background:var(--y9-primary);color:#fff;}

/* ============ 按钮 ============ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--y9-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--y9-ease);
}
.y9-btn-primary{background:var(--y9-primary);color:#fff;box-shadow:var(--y9-l1);}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;box-shadow:var(--y9-l2);transform:translateY(-1px);}
.y9-btn-primary:active{transform:translateY(0);}
.y9-btn-accent{background:var(--y9-accent);color:#fff;box-shadow:var(--y9-l1);}
.y9-btn-accent:hover{background:var(--y9-accent-dark);color:#fff;box-shadow:var(--y9-l2);transform:translateY(-1px);}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border-color:var(--y9-primary);}
.y9-btn-ghost:hover{background:var(--y9-primary-soft);color:var(--y9-primary-dark);border-color:var(--y9-primary-dark);}
.y9-btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ 分类页头 ============ */
.y9-cat-hero{position:relative;padding:48px 0 52px;background:var(--y9-primary-soft2);border-bottom:1px solid var(--y9-line);overflow:hidden;}
.y9-cat-hero::after{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.07;pointer-events:none;
}
.y9-cat-hero .container{position:relative;z-index:1;}
.y9-crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--y9-ink-3);margin-bottom:22px;flex-wrap:wrap;}
.y9-crumb a{color:var(--y9-ink-2);}
.y9-crumb a:hover{color:var(--y9-primary);}
.y9-crumb .sep{color:var(--y9-ink-3);}
.y9-crumb .current{color:var(--y9-ink);font-weight:600;}
.y9-cat-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.y9-cat-hero h1{font-size:42px;line-height:1.28;font-weight:700;margin-bottom:16px;}
.y9-cat-lead{font-size:17px;line-height:1.8;color:var(--y9-ink-2);max-width:560px;margin-bottom:22px;}
.y9-cat-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.y9-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--y9-r-pill);font-size:13px;font-weight:500;
  background:#fff;color:var(--y9-ink-2);border:1px solid var(--y9-line);
}
.y9-cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.y9-cat-hero-media{
  border-radius:20px;overflow:hidden;background:#fff;
  box-shadow:var(--y9-l2);aspect-ratio:16/10;
}
.y9-cat-hero-media img{width:100%;height:100%;object-fit:cover;}

/* ============ 通用板块 ============ */
.y9-section{padding:88px 0;}
.y9-section-alt{background:var(--y9-alt);}
.y9-section-white{background:#fff;}
.y9-sec-head{max-width:780px;margin-bottom:40px;}
.y9-eyebrow{
  display:inline-block;margin-bottom:14px;padding:5px 14px;
  font-size:13px;font-weight:600;color:var(--y9-primary);
  background:var(--y9-primary-soft);border-radius:var(--y9-r-pill);
}
.y9-sec-head h2{font-size:32px;line-height:1.35;font-weight:700;margin-bottom:12px;}
.y9-sec-head p{font-size:16px;line-height:1.8;color:var(--y9-ink-2);}
.y9-note{margin-top:18px;font-size:14px;color:var(--y9-ink-3);}

/* ============ 对比清单 ============ */
.y9-compare-wrap{
  background:#fff;border:1px solid var(--y9-line);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-l1);overflow:hidden;
}
.y9-compare{width:100%;border-collapse:collapse;}
.y9-compare thead th{
  background:var(--y9-alt);padding:18px;text-align:left;
  font-size:15px;font-weight:600;color:var(--y9-ink);
  border-bottom:1px solid var(--y9-line);white-space:nowrap;
}
.y9-compare thead th:first-child{font-size:14px;color:var(--y9-ink-2);}
.y9-compare tbody th{
  width:176px;padding:16px 18px;text-align:left;
  background:var(--y9-primary-soft2);font-size:14px;font-weight:600;color:var(--y9-ink);
  border-bottom:1px solid var(--y9-line-2);
}
.y9-compare tbody td{
  padding:16px 18px;font-size:14px;color:var(--y9-ink-2);
  border-bottom:1px solid var(--y9-line-2);vertical-align:top;
}
.y9-compare tbody tr:last-child th,
.y9-compare tbody tr:last-child td{border-bottom:0;}
.y9-compare .is-rec{background:var(--y9-primary-soft);}
.y9-compare thead th.is-rec{color:var(--y9-primary);}
.y9-rec{
  display:inline-flex;align-items:center;gap:5px;margin-left:8px;
  height:22px;padding:0 10px;border-radius:var(--y9-r-pill);
  background:var(--y9-accent);color:#fff;font-size:12px;font-weight:600;
  vertical-align:middle;
}

/* ============ 版本选择建议 ============ */
.y9-choose-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;}
.y9-pick{
  background:#fff;border:1px solid var(--y9-line);border-radius:var(--y9-r-card);
  box-shadow:var(--y9-l1);overflow:hidden;
  transition:box-shadow .22s var(--y9-ease),transform .22s var(--y9-ease);
}
.y9-pick:hover{box-shadow:var(--y9-l3);transform:translateY(-3px);}
.y9-pick-media{aspect-ratio:16/10;overflow:hidden;background:var(--y9-alt);}
.y9-pick-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--y9-ease);}
.y9-pick:hover .y9-pick-media img{transform:scale(1.03);}
.y9-pick-body{padding:24px;}
.y9-pick-body h3{font-size:20px;font-weight:600;margin:12px 0 10px;}
.y9-pick-body p{font-size:15px;line-height:1.8;color:var(--y9-ink-2);}
.y9-pick + .y9-pick,
.y9-pick-col .y9-pick + .y9-pick{margin-top:20px;}
.y9-pick-col{display:flex;flex-direction:column;}
.y9-pick-col .y9-pick{flex:1;}
.y9-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--y9-r-pill);font-size:12px;font-weight:600;
}
.y9-tag-primary{background:var(--y9-primary-soft);color:var(--y9-primary);}
.y9-tag-mint{background:rgba(18,181,168,.12);color:#0E8F86;}
.y9-tag-accent{background:rgba(255,122,47,.14);color:#D25711;}
.y9-ticks{margin-top:14px;}
.y9-ticks li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--y9-ink-2);padding:5px 0;}
.y9-ticks li i{color:var(--y9-mint);margin-top:4px;font-size:12px;}
.y9-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--y9-primary);
}
.y9-link:hover{color:var(--y9-primary-dark);text-decoration:underline;text-underline-offset:4px;}
.y9-link i{font-size:12px;transition:transform .2s var(--y9-ease);}
.y9-link:hover i{transform:translateX(4px);}

/* ============ 折叠说明 ============ */
.y9-accordion .accordion-item{
  background:#fff;border:1px solid var(--y9-line);border-radius:var(--y9-r-sm);
  box-shadow:var(--y9-l1);margin-bottom:14px;overflow:hidden;
}
.y9-accordion .accordion-item:last-child{margin-bottom:0;}
.y9-accordion .accordion-button{
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--y9-ink);
  background:#fff;box-shadow:none;border-left:3px solid transparent;
}
.y9-accordion .accordion-button:not(.collapsed){
  color:var(--y9-primary);background:#fff;border-left-color:var(--y9-primary);box-shadow:none;
}
.y9-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,90,224,.18);z-index:2;}
.y9-accordion .accordion-button::after{
  width:1rem;height:1rem;background-size:1rem;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F5AE0'%3E%3Cpath d='M8 11.6 2.4 6l1.1-1.1L8 9.4l4.5-4.5L13.6 6z'/%3E%3C/svg%3E");
  transition:transform .22s var(--y9-ease);
}
.y9-accordion .accordion-body{
  padding:2px 22px 22px;font-size:15px;line-height:1.85;color:var(--y9-ink-2);
  animation:y9Fade .18s var(--y9-ease);
}
@keyframes y9Fade{from{opacity:0;}to{opacity:1;}}

/* ============ FAQ 卡片 ============ */
.y9-faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.y9-faq-card{
  background:#fff;border:1px solid var(--y9-line);border-radius:var(--y9-r-card);
  padding:28px;box-shadow:var(--y9-l1);
  transition:box-shadow .22s var(--y9-ease),transform .22s var(--y9-ease);
}
.y9-faq-card:hover{box-shadow:var(--y9-l3);transform:translateY(-3px);}
.y9-faq-card h3{display:flex;gap:11px;font-size:17px;font-weight:600;margin-bottom:12px;line-height:1.6;}
.y9-faq-card h3 i{color:var(--y9-primary);margin-top:5px;font-size:14px;flex:0 0 auto;}
.y9-faq-card p{font-size:15px;line-height:1.85;color:var(--y9-ink-2);}

/* ============ 底部 CTA 带 ============ */
.y9-cta-band{background:var(--y9-primary-soft);border-top:1px solid var(--y9-line);border-bottom:1px solid var(--y9-line);padding:44px 0;}
.y9-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.y9-cta-inner h2{font-size:24px;font-weight:700;margin-bottom:8px;}
.y9-cta-inner p{font-size:15px;line-height:1.8;color:var(--y9-ink-2);max-width:720px;}

/* ============ 页脚 ============ */
.y9-footer{background:#0E1F3C;color:#A7B7CF;padding:64px 0 26px;}
.y9-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.y9-footer ul li{margin-bottom:10px;font-size:14px;}
.y9-footer a{color:#A7B7CF;}
.y9-footer a:hover{color:#fff;}
.y9-footer .brand{
  display:flex;align-items:center;gap:10px;margin-bottom:14px;
  color:#fff;font-size:18px;font-weight:700;
}
.y9-footer p{font-size:14px;line-height:1.85;color:#A7B7CF;max-width:360px;}
.y9-footer .contact-item{display:flex;gap:9px;align-items:flex-start;font-size:14px;}
.y9-footer .contact-item i{color:var(--y9-accent);margin-top:5px;font-size:12px;}
.y9-footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8296B4;
}
.y9-backtop{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:var(--y9-r-pill);
  background:transparent;border:1px solid rgba(255,255,255,.25);
  color:#fff;font-size:13px;cursor:pointer;transition:all .2s var(--y9-ease);
}
.y9-backtop:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);}

/* ============ 浮动 CTA ============ */
.y9-float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 24px;border-radius:var(--y9-r-pill);
  background:var(--y9-accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--y9-l3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s var(--y9-ease),transform .24s var(--y9-ease);
}
.y9-float-cta.show{opacity:1;transform:none;pointer-events:auto;}
.y9-float-cta:hover{color:#fff;transform:translateY(-2px);background:var(--y9-accent-dark);}
.y9-mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  height:56px;padding:0 16px;
  background:var(--y9-primary);color:#fff;
  box-shadow:0 -10px 28px -14px rgba(16,42,86,.5);
  opacity:0;transform:translateY(100%);pointer-events:none;
  transition:opacity .24s var(--y9-ease),transform .24s var(--y9-ease);
}
.y9-mobile-bar.show{opacity:1;transform:none;pointer-events:auto;}
.y9-mobile-bar a{color:#fff;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.y9-mobile-bar-actions{display:flex;align-items:center;gap:10px;}
.y9-close-cta{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:rgba(255,255,255,.18);border:0;color:#fff;font-size:13px;cursor:pointer;
  transition:background-color .2s var(--y9-ease);
}
.y9-close-cta:hover{background:rgba(255,255,255,.32);}
.y9-float-cta .y9-close-cta{background:rgba(255,255,255,.2);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .y9-cat-hero h1{font-size:36px;}
}
@media (max-width:991.98px){
  .y9-nav-inner{min-height:66px;gap:16px;}
  .y9-burger{display:inline-flex;}
  .y9-nav-cta{display:none;}
  .y9-cat-hero{padding:36px 0 40px;}
  .y9-cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .y9-cat-hero h1{font-size:31px;}
  .y9-cat-lead{font-size:16px;}
  .y9-cat-hero-media{order:2;}
  .y9-section{padding:72px 0;}
  .y9-sec-head h2{font-size:27px;}
  .y9-choose-grid{grid-template-columns:1fr;}
  .y9-float-cta{display:none;}
  .y9-mobile-bar{display:flex;}
  .y9-cta-inner{flex-direction:column;align-items:flex-start;gap:18px;}
  body{padding-bottom:72px;}
}
@media (max-width:767.98px){
  .y9-search{display:none;}
  .y9-cat-hero h1{font-size:27px;}
  .y9-section{padding:56px 0;}
  .y9-sec-head h2{font-size:24px;}
  .y9-sec-head{margin-bottom:28px;}
  .y9-faq-grid{grid-template-columns:1fr;}
  .y9-compare-wrap{background:transparent;border:0;box-shadow:none;border-radius:0;}
  .y9-compare,
  .y9-compare tbody,
  .y9-compare tr,
  .y9-compare th,
  .y9-compare td{display:block;width:100%;}
  .y9-compare thead{display:none;}
  .y9-compare tr{
    background:#fff;border:1px solid var(--y9-line);border-radius:14px;
    box-shadow:var(--y9-l1);margin-bottom:16px;overflow:hidden;
  }
  .y9-compare tbody th{
    background:var(--y9-primary-soft2);font-size:16px;padding:14px 16px;border-bottom:1px solid var(--y9-line);
  }
  .y9-compare tbody td{
    display:flex;justify-content:space-between;gap:16px;align-items:flex-start;
    padding:12px 16px;border-bottom:1px dashed var(--y9-line-2);
  }
  .y9-compare tbody td:last-child{border-bottom:0;}
  .y9-compare tbody td::before{
    content:attr(data-label);
    flex:0 0 auto;color:var(--y9-ink-3);font-size:13px;
  }
  .y9-compare tbody td.is-rec{background:var(--y9-primary-soft);}
  .y9-note{margin-top:4px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .y9-channels-scroll{padding:0 16px;gap:8px;}
  .y9-cat-hero h1{font-size:24px;}
  .y9-cat-lead{font-size:15px;}
  .y9-btn{width:100%;}
  .y9-btn-block-mobile{width:100%;}
  .y9-cat-hero-actions{flex-direction:column;align-items:stretch;}
  .y9-cta-inner .y9-btn{width:100%;}
  .y9-footer{padding:48px 0 22px;}
  .y9-footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media print{
  .y9-header,.y9-float-cta,.y9-mobile-bar,.y9-cta-band{display:none!important;}
  body{background:#fff;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
/* ============================================================
   1. 设计变量
   ============================================================ */
:root{
  --y9-primary:#1F5AE0;
  --y9-primary-dark:#1544B0;
  --y9-primary-deep:#0F3070;
  --y9-primary-soft:#EAF1FE;
  --y9-orange:#FF7A2F;
  --y9-orange-dark:#E9651C;
  --y9-orange-soft:#FFF1E8;
  --y9-mint:#12B5A8;
  --y9-mint-soft:#E4F7F5;

  --y9-bg:#F5F8FC;
  --y9-bg-alt:#EEF3FB;
  --y9-surface:#FFFFFF;
  --y9-dark:#0E1F3C;

  --y9-text:#10203A;
  --y9-text-2:#5A6B85;
  --y9-text-3:#8A99B0;

  --y9-border:#E4EBF6;
  --y9-divider:#EDF2FA;

  --y9-radius-lg:16px;
  --y9-radius:12px;
  --y9-radius-sm:10px;
  --y9-radius-pill:999px;

  --y9-shadow-1:0 1px 2px rgba(16,42,86,.06);
  --y9-shadow-2:0 10px 28px -14px rgba(16,42,86,.20);
  --y9-shadow-3:0 18px 40px -18px rgba(16,42,86,.30);

  --y9-ease:cubic-bezier(.2,.7,.3,1);
  --y9-container:1200px;

  /* Bootstrap 变量覆盖 */
  --bs-primary:#1F5AE0;
  --bs-primary-rgb:31,90,224;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#10203A;
  --bs-border-color:#E4EBF6;
  --bs-border-radius:12px;
  --bs-link-color:#1F5AE0;
  --bs-link-hover-color:#1544B0;
  --bs-body-font-size:16px;
  --bs-font-sans-serif:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
}

/* ============================================================
   2. 基础 reset
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;
  background:var(--y9-bg);
  color:var(--y9-text);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--y9-primary);text-decoration:none;transition:color .2s var(--y9-ease)}
a:hover{color:var(--y9-primary-dark);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--y9-text);line-height:1.35}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,90,224,.35);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,90,224,.18)}

.y9-container{width:100%;max-width:var(--y9-container);margin:0 auto;padding:0 20px}
@media (min-width:1400px){.y9-container{max-width:1280px}}

/* ============================================================
   3. 按钮 / 徽章 / 通用组件
   ============================================================ */
.y9-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--y9-radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none!important;white-space:nowrap;
  transition:background-color .2s var(--y9-ease),color .2s var(--y9-ease),
             transform .2s var(--y9-ease),box-shadow .2s var(--y9-ease),
             border-color .2s var(--y9-ease);
}
.y9-btn:focus-visible{box-shadow:0 0 0 3px rgba(31,90,224,.35)}
.y9-btn-primary{background:var(--y9-primary);color:#fff}
.y9-btn-primary:hover{background:var(--y9-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--y9-shadow-2)}
.y9-btn-primary:active{transform:translateY(0);box-shadow:none}
.y9-btn-orange{background:var(--y9-orange);color:#fff}
.y9-btn-orange:hover{background:var(--y9-orange-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--y9-shadow-2)}
.y9-btn-orange:active{transform:translateY(0);box-shadow:none}
.y9-btn-ghost{background:#fff;color:var(--y9-primary);border-color:rgba(31,90,224,.45)}
.y9-btn-ghost:hover{background:var(--y9-primary-soft);color:var(--y9-primary-dark);border-color:var(--y9-primary)}
.y9-btn-lg{height:48px;padding:0 26px;font-size:16px}
.y9-btn-block{width:100%}

.y9-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--y9-radius-pill);
  font-size:13px;font-weight:600;line-height:1.4;
}
.y9-badge-blue{background:var(--y9-primary-soft);color:var(--y9-primary-dark)}
.y9-badge-mint{background:var(--y9-mint-soft);color:#0C8B81}
.y9-badge-orange{background:var(--y9-orange-soft);color:#C85514}

.y9-card{
  background:var(--y9-surface);
  border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-shadow-1);
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease),border-color .22s var(--y9-ease);
}
.y9-card:hover{transform:translateY(-3px);box-shadow:var(--y9-shadow-3)}

/* ============================================================
   4. 顶部双层导航
   ============================================================ */
.y9-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--y9-border);
  transition:box-shadow .25s var(--y9-ease);
}
.y9-header.is-scrolled{box-shadow:var(--y9-shadow-2)}
.y9-topbar{
  display:flex;align-items:center;gap:20px;height:70px;
}
.y9-logo{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none!important;flex:0 0 auto;
}
.y9-logo-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--y9-primary),var(--y9-primary-deep));
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(31,90,224,.7);
}
.y9-logo-text{font-size:19px;font-weight:700;color:var(--y9-text);letter-spacing:.01em}
.y9-logo:hover .y9-logo-text{color:var(--y9-primary)}

.y9-search{
  flex:1 1 auto;max-width:340px;position:relative;display:flex;align-items:center;
}
.y9-search i{
  position:absolute;left:18px;font-size:14px;color:var(--y9-text-3);pointer-events:none;
}
.y9-search input{
  width:100%;height:44px;padding:0 18px 0 44px;
  border:1px solid transparent;border-radius:var(--y9-radius-pill);
  background:#F2F6FD;color:var(--y9-text);font-size:14px;
  transition:background-color .2s var(--y9-ease),border-color .2s var(--y9-ease),box-shadow .2s var(--y9-ease);
}
.y9-search input::placeholder{color:var(--y9-text-3)}
.y9-search input:focus{
  outline:none;background:#fff;border-color:var(--y9-primary);
  box-shadow:0 0 0 4px rgba(31,90,224,.15);
}
.y9-topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.y9-hamburger{
  width:44px;height:44px;border-radius:var(--y9-radius-sm);
  border:1px solid var(--y9-border);background:#fff;color:var(--y9-text);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  transition:background-color .2s var(--y9-ease),border-color .2s var(--y9-ease);
}
.y9-hamburger:hover{background:var(--y9-primary-soft);border-color:rgba(31,90,224,.35)}

/* 频道 Tabs */
.y9-channels{
  position:relative;border-top:1px solid var(--y9-divider);
}
.y9-channels::after{
  content:"";position:absolute;top:1px;right:0;bottom:0;width:56px;
  background:linear-gradient(90deg,rgba(255,255,255,0),#fff 70%);
  pointer-events:none;
}
.y9-channels-scroll{
  display:flex;gap:10px;align-items:center;height:52px;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:0 20px;max-width:var(--y9-container);margin:0 auto;
}
.y9-channels-scroll::-webkit-scrollbar{display:none}
.y9-chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--y9-radius-pill);
  background:#F2F6FD;color:var(--y9-text-2);
  font-size:14px;font-weight:500;line-height:1;text-decoration:none!important;
  border:1px solid transparent;
  transition:background-color .2s var(--y9-ease),color .2s var(--y9-ease),border-color .2s var(--y9-ease);
}
.y9-chip:hover{background:#fff;color:var(--y9-primary);border-color:rgba(31,90,224,.45)}
.y9-chip.active{background:var(--y9-primary);color:#fff;font-weight:600}
.y9-chip.active:hover{background:var(--y9-primary-dark);color:#fff}

/* 移动端抽屉 */
.offcanvas.y9-drawer{width:min(88vw,360px);border-right:1px solid var(--y9-border)}
.y9-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--y9-divider)}
.y9-drawer-body{padding:14px 20px 30px}
.y9-drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:10px 0;border-bottom:1px solid var(--y9-divider);
  color:var(--y9-text);font-size:15px;font-weight:500;text-decoration:none!important;
}
.y9-drawer-link.active{color:var(--y9-primary);font-weight:700}
.y9-drawer-link i{color:var(--y9-text-3);font-size:13px}
.y9-drawer-search{margin:16px 0 4px}
.y9-drawer-search input{
  width:100%;height:44px;padding:0 16px;border-radius:var(--y9-radius-sm);
  border:1px solid var(--y9-border);background:#F2F6FD;font-size:14px;
}
.y9-drawer-search input:focus{outline:none;border-color:var(--y9-primary);box-shadow:0 0 0 4px rgba(31,90,224,.15);background:#fff}

/* ============================================================
   5. 页头（分类页 hero）
   ============================================================ */
.y9-page-hero{
  position:relative;
  padding:36px 0 34px;
  background-color:#F2F6FD;
  background-image:linear-gradient(135deg,rgba(255,255,255,.95),rgba(234,241,254,.90)),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--y9-border);
}
.y9-crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:14px;color:var(--y9-text-3);margin-bottom:18px;
}
.y9-crumb a{color:var(--y9-text-2);text-decoration:none!important}
.y9-crumb a:hover{color:var(--y9-primary)}
.y9-crumb .sep{color:#C7D3E6}
.y9-crumb .cur{color:var(--y9-text);font-weight:600}
.y9-page-hero h1{
  font-size:44px;line-height:1.25;letter-spacing:.01em;font-weight:700;
  max-width:820px;margin-bottom:16px;
}
.y9-page-hero h1 .accent{
  position:relative;display:inline-block;
}
.y9-page-hero h1 .accent::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:rgba(255,122,47,.22);border-radius:4px;z-index:-1;
}
.y9-hero-sub{
  max-width:760px;font-size:16px;line-height:1.85;color:var(--y9-text-2);margin-bottom:22px;
}
.y9-pill-row{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding-bottom:4px;margin:0 -4px;
}
.y9-pill-row::-webkit-scrollbar{display:none}
.y9-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 16px;border-radius:var(--y9-radius-pill);
  background:#fff;border:1px solid var(--y9-border);
  color:var(--y9-text-2);font-size:14px;font-weight:500;white-space:nowrap;
}
.y9-pill i{color:var(--y9-primary);font-size:12px}

/* ============================================================
   6. 板块通用
   ============================================================ */
.y9-section{padding:96px 0}
.y9-section--alt{background:var(--y9-bg-alt)}
.y9-section--white{background:#fff}
.y9-sec-head{max-width:760px;margin-bottom:44px}
.y9-sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--y9-primary);
  background:var(--y9-primary-soft);border-radius:var(--y9-radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.y9-sec-title{font-size:32px;line-height:1.35;margin-bottom:14px}
.y9-sec-desc{font-size:16px;color:var(--y9-text-2);line-height:1.85;margin:0}

/* ============================================================
   7. 福利类型区（不对称栅格）
   ============================================================ */
.y9-benefit-main{
  border-radius:var(--y9-radius-lg);overflow:hidden;
  background:#fff;border:1px solid var(--y9-border);box-shadow:var(--y9-shadow-1);
  height:100%;display:flex;flex-direction:column;
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease);
}
.y9-benefit-main:hover{transform:translateY(-3px);box-shadow:var(--y9-shadow-3)}
.y9-benefit-main figure{margin:0;position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--y9-bg-alt)}
.y9-benefit-main figure img{width:100%;height:100%;object-fit:cover}
.y9-benefit-main figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,32,58,.06),rgba(16,32,58,0));
}
.y9-benefit-main-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.y9-benefit-main-body h3{font-size:22px;margin-bottom:12px}
.y9-benefit-main-body p{font-size:15px;color:var(--y9-text-2);line-height:1.85;margin-bottom:18px}
.y9-benefit-list{display:flex;flex-direction:column;gap:0;height:100%}
.y9-benefit-item{
  display:flex;gap:16px;padding:20px 22px;background:#fff;
  border:1px solid var(--y9-border);border-radius:var(--y9-radius);
  box-shadow:var(--y9-shadow-1);margin-bottom:16px;
  transition:transform .22s var(--y9-ease),box-shadow .22s var(--y9-ease);
}
.y9-benefit-item:last-child{margin-bottom:0}
.y9-benefit-item:hover{transform:translateY(-3px);box-shadow:var(--y9-shadow-3)}
.y9-benefit-icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:12px;
  background:var(--y9-primary-soft);color:var(--y9-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.y9-benefit-item h4{font-size:17px;margin-bottom:6px}
.y9-benefit-item p{font-size:14px;color:var(--y9-text-2);line-height:1.75;margin:0 0 8px}
.y9-inline-link{
  font-size:14px;font-weight:600;color:var(--y9-primary);text-decoration:none!important;
  display:inline-flex;align-items:center;gap:6px;
}
.y9-inline-link i{transition:transform .2s var(--y9-ease)}
.y9-inline-link:hover i{transform:translateX(4px)}

/* ============================================================
   8. 流程步骤 + 表单
   ============================================================ */
.y9-steps{position:relative;padding-top:6px}
.y9-step{position:relative;padding:0 0 34px 62px}
.y9-step:last-child{padding-bottom:0}
.y9-step::before{
  content:"";position:absolute;left:21px;top:48px;bottom:2px;width:2px;
  background:var(--y9-divider);
}
.y9-step:last-child::before{display:none}
.y9-step-num{
  position:absolute;left:0;top:0;
  width:44px;height:44px;border-radius:12px;
  background:#fff;border:1px solid rgba(31,90,224,.35);
  color:var(--y9-primary);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--y9-shadow-1);
}
.y9-step h3{font-size:19px;margin-bottom:8px;padding-top:6px}
.y9-step p{font-size:15px;color:var(--y9-text-2);line-height:1.85;margin:0}
.y9-step .y9-step-tags{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}

.y9-form-card{
  position:sticky;top:150px;
  background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius-lg);box-shadow:var(--y9-shadow-2);
  padding:28px 26px 26px;
}
.y9-form-card h3{font-size:20px;margin-bottom:8px}
.y9-form-card .form-hint{font-size:14px;color:var(--y9-text-2);line-height:1.75;margin-bottom:20px}
.y9-field{margin-bottom:16px}
.y9-field label{
  display:block;font-size:14px;font-weight:600;color:var(--y9-text);margin-bottom:8px;
}
.y9-field .req{color:var(--y9-orange)}
.y9-input,.y9-select,.y9-textarea{
  width:100%;border:1px solid var(--y9-border);border-radius:var(--y9-radius-sm);
  background:#F8FBFF;color:var(--y9-text);font-size:15px;font-family:inherit;
  transition:border-color .2s var(--y9-ease),box-shadow .2s var(--y9-ease),background-color .2s var(--y9-ease);
}
.y9-input,.y9-select{height:44px;padding:0 14px}
.y9-textarea{min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.y9-input::placeholder,.y9-textarea::placeholder{color:var(--y9-text-3)}
.y9-input:focus,.y9-select:focus,.y9-textarea:focus{
  outline:none;background:#fff;border-color:var(--y9-primary);
  box-shadow:0 0 0 4px rgba(31,90,224,.15);
}
.y9-input.is-error,.y9-select.is-error,.y9-textarea.is-error{
  border-color:#D8402F;background:#FFF7F6;
}
.y9-error-text{display:none;font-size:13px;color:#D8402F;margin-top:6px}
.y9-error-text.show{display:block}
.y9-check{display:flex;align-items:flex-start;gap:10px;margin:4px 0 18px}
.y9-check input{
  width:18px;height:18px;margin-top:3px;flex:0 0 auto;
  accent-color:var(--y9-primary);cursor:pointer;
}
.y9-check span{font-size:13px;color:var(--y9-text-2);line-height:1.65}
.y9-form-note{font-size:13px;color:var(--y9-text-3);margin:14px 0 0;line-height:1.7}
.y9-form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--y9-radius-sm);
  background:var(--y9-mint-soft);color:#0C8B81;font-size:14px;font-weight:600;
}
.y9-form-success.show{display:block}

/* ============================================================
   9. 注意事项列表
   ============================================================ */
.y9-note-list{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-shadow-1);overflow:hidden;
}
.y9-note-item{
  display:flex;gap:16px;padding:22px 26px;
  border-bottom:1px solid var(--y9-divider);
}
.y9-note-item:last-child{border-bottom:0}
.y9-note-item i{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--y9-orange-soft);color:#C85514;
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.y9-note-item h4{font-size:16px;margin-bottom:6px}
.y9-note-item p{font-size:14px;color:var(--y9-text-2);line-height:1.8;margin:0}
.y9-side-card{
  background:#fff;border:1px solid var(--y9-border);border-radius:var(--y9-radius-lg);
  box-shadow:var(--y9-shadow-1);padding:24px;
}
.y9-side-card h3{font-size:18px;margin-bottom:10px}
.y9-side-card p{font-size:14px;color:var(--y9-text-2);line-height:1.8;margin-bottom:16px}
.y9-mini-figure{border-radius:var(--y9-radius);overflow:hidden;aspect-ratio:16/10;background:var(--y9-bg-alt);margin-bottom:16px}
.y9-mini-figure img{width:100%;height:100%;object-fit:cover}

/* ============================================================
   10. FAQ
   ============================================================ */
.y9-faq .accordion-item{
  background:#fff;border:1px solid var(--y9-border);
  border-radius:var(--y9-radius);margin-bottom:14px;overflow:hidden;
  box-shadow:var(--y9-shadow-1);
}
.y9-faq .accordion-button{
  background:#fff;box-shadow:none;border-left:3px solid transparent;
  font-size:17px;font-weight:600;color:var(--y9-text);
  padding:20px 22px;line-height:1.55;border-radius:0;
}
.y9-faq .accordion-button:not(.collapsed){
  color:var(--y9-primary);border-left-color:var(--y9-primary);
  padding-left:19px;box-shadow:none;
}
.y9-faq .accordion-button:focus{
  box-shadow:0 0 0 3px rgba(31,90,224,.25);border-color:transparent;
}
.y9-faq .accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:invert(28%) sepia(74%) saturate(2400%) hue-rotate(210deg) brightness(92%) contrast(92%);
  transition:transform .22s var(--y9-ease);
}
.y9-faq .accordion-body{
  padding:2px 22px 22px;font-size:15px;line-height:1.85;color:var(--y9-text-2);
}
.y9-faq-aside{
  background:var(--y9-primary-soft);border-radius:var(--y9-radius-lg);
  padding:26px 24px;
}
.y9-faq-aside h3{font-size:19px;margin-bottom:10px}
.y9-faq-aside p{font-size:14px;color:var(--y9-text-2);line-height:1.8;margin-bottom:18px}

/* ============================================================
   11. 底部 CTA 带
   ============================================================ */
.y9-cta-band{
  background:var(--y9-primary-soft);
  border-top:1px solid var(--y9-border);border-bottom:1px solid var(--y9-border);
  padding:34px 0;
}
.y9-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.y9-cta-inner h2{font-size:22px;margin-bottom:6px}
.y9-cta-inner p{font-size:15px;color:var(--y9-text-2);margin:0}

/* ============================================================
   12. 页脚
   ============================================================ */
.y9-footer{background:var(--y9-dark);color:#A7B7CF;padding:64px 0 0;margin-top:0}
.y9-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.y9-footer ul{display:flex;flex-direction:column;gap:11px}
.y9-footer a{color:#A7B7CF;font-size:14px;text-decoration:none!important;transition:color .2s var(--y9-ease)}
.y9-footer a:hover{color:#fff}
.y9-footer .brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.y9-footer .y9-brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--y9-primary),var(--y9-primary-deep));
  color:#fff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.y9-footer .brand span:last-child{color:#fff;font-size:18px;font-weight:700}
.y9-footer p{font-size:14px;line-height:1.85;color:#A7B7CF}
.y9-footer .contact-item{display:flex;align-items:center;gap:10px;font-size:14px}
.y9-footer .contact-item i{color:var(--y9-primary);font-size:14px;width:16px;text-align:center}
.y9-footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8B9DBA;
}
.y9-backtop{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--y9-radius-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#fff;font-size:13px;font-weight:600;cursor:pointer;
  transition:background-color .2s var(--y9-ease),transform .2s var(--y9-ease);
}
.y9-backtop:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* ============================================================
   13. 浮动 CTA
   ============================================================ */
.y9-float-cta{
  position:fixed;right:26px;bottom:30px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  height:52px;padding:0 24px;border-radius:var(--y9-radius-pill);
  background:var(--y9-orange);color:#fff;font-size:15px;font-weight:600;
  border:none;cursor:pointer;box-shadow:var(--y9-shadow-3);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .22s var(--y9-ease),transform .22s var(--y9-ease),background-color .2s var(--y9-ease);
}
.y9-float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.y9-float-cta:hover{background:var(--y9-orange-dark);transform:translateY(-2px)}
.y9-bottombar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;background:var(--y9-primary);color:#fff;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;box-shadow:0 -6px 20px -12px rgba(16,42,86,.5);
}
.y9-bottombar span{font-size:14px;font-weight:600}
.y9-bottombar .y9-bottombar-actions{display:flex;align-items:center;gap:8px}
.y9-bottombar a{
  height:38px;padding:0 16px;border-radius:var(--y9-radius-pill);
  background:#fff;color:var(--y9-primary);font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;text-decoration:none!important;
}
.y9-bottombar button{
  width:32px;height:32px;border-radius:50%;border:none;
  background:rgba(255,255,255,.18);color:#fff;font-size:13px;cursor:pointer;
}

/* ============================================================
   14. 响应式
   ============================================================ */
@media (max-width:1199.98px){
  .y9-section{padding:80px 0}
  .y9-form-card{position:static;margin-top:32px}
}
@media (max-width:991.98px){
  .y9-page-hero{padding:28px 0 26px}
  .y9-page-hero h1{font-size:30px}
  .y9-hero-sub{font-size:15px}
  .y9-section{padding:72px 0}
  .y9-sec-title{font-size:26px}
  .y9-search{display:none}
  .y9-topbar{height:64px}
  .y9-float-cta{display:none}
  .y9-bottombar{display:flex}
  body{padding-bottom:72px}
  .y9-step{padding-left:56px}
  .y9-step::before{left:19px}
  .y9-step-num{width:40px;height:40px;font-size:14px}
}
@media (max-width:767.98px){
  .y9-section{padding:56px 0}
  .y9-sec-title{font-size:24px}
  .y9-page-hero h1{font-size:26px;line-height:1.3}
  .y9-logo-text{font-size:17px}
  .y9-logo-mark{width:38px;height:38px;font-size:13px}
  .y9-form-card{padding:22px 18px 20px}
  .y9-note-item{padding:18px 18px}
  .y9-cta-inner{flex-direction:column;align-items:flex-start}
  .y9-cta-inner .y9-btn{width:100%}
  .y9-footer{padding:48px 0 0}
  .y9-footer-bottom{margin-top:36px}
}
@media (max-width:575.98px){
  .y9-container{padding:0 16px}
  .y9-page-hero h1{font-size:23px}
  .y9-hero-sub{font-size:14px}
  .y9-sec-title{font-size:22px}
  .y9-benefit-main-body{padding:20px 18px 22px}
  .y9-benefit-item{padding:16px}
  .y9-form-card h3{font-size:18px}
  .y9-bottombar span{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
  html{scroll-behavior:auto}
  .y9-card:hover,.y9-benefit-item:hover,.y9-benefit-main:hover,.y9-float-cta:hover,.y9-backtop:hover{transform:none}
}
@media print{
  .y9-header,.y9-float-cta,.y9-bottombar,.y9-footer,.y9-cta-band{display:none!important}
  body{background:#fff}
}