/* roulang page: index */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-inverse:#EAF0EE;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,29,.05);
  --sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --yl-font:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --yl-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--yl-font);
  font-size:16px;
  line-height:1.85;
  color:var(--yl-text);
  background:var(--yl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--yl-accent);outline-offset:2px;border-radius:4px}
.yl-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.yl-skip{position:absolute;left:-9999px;top:0;background:var(--yl-primary);color:#fff;padding:10px 18px;z-index:99;border-radius:0 0 var(--r-md) 0}
.yl-skip:focus{left:0}

/* ---------- 容器 ---------- */
.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){.yl-container{max-width:1280px}}

/* ---------- 顶部公告条 ---------- */
.yl-topbar{background:var(--yl-dark);color:var(--yl-inverse);font-size:13px;min-height:34px;display:flex;align-items:center}
.yl-topbar .yl-container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.yl-topbar__text{display:inline-flex;align-items:center;gap:8px;padding:6px 0}
.yl-topbar__text::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--yl-signal);flex:0 0 auto}
.yl-topbar__link{color:var(--yl-accent);font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s}
.yl-topbar__link:hover{border-bottom-color:var(--yl-accent)}

/* ---------- 导航 ---------- */
.yl-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:background .25s,box-shadow .25s,border-color .25s}
.yl-header.is-stuck{background:rgba(255,255,255,.88);border-bottom-color:var(--yl-border);box-shadow:var(--sh-1)}
.yl-nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px;transition:height .25s}
.yl-header.is-stuck .yl-nav{height:64px}
.yl-logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--yl-primary)}
.yl-logo svg{flex:0 0 auto}
.yl-logo span{white-space:nowrap}
.yl-nav-links{display:flex;align-items:center;gap:30px}
.yl-nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--yl-text-2);transition:color .2s}
.yl-nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--yl-accent);transition:width .2s cubic-bezier(.22,.61,.36,1)}
.yl-nav-links a:hover{color:var(--yl-primary)}
.yl-nav-links a:hover::after{width:60%}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:600}
.yl-nav-links a.is-active::after{width:100%}
.yl-nav-links a.is-active::before{content:"";position:absolute;right:-4px;bottom:-1px;width:4px;height:4px;border-radius:50%;background:var(--yl-accent)}
.yl-nav__cta{display:flex;align-items:center;gap:12px}
.yl-burger{display:none;width:44px;height:44px;border:0;background:transparent;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0}
.yl-burger span{display:block;width:22px;height:2px;border-radius:2px;background:var(--yl-primary);transition:transform .25s,opacity .2s}
.yl-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.yl-burger.is-open span:nth-child(2){opacity:0}
.yl-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.yl-drawer{position:fixed;top:0;right:0;width:280px;max-width:86vw;height:100%;background:var(--yl-surface);z-index:90;transform:translateX(100%);transition:transform .32s cubic-bezier(.22,.61,.36,1);padding:88px 24px 32px;overflow-y:auto;box-shadow:var(--sh-2)}
body.yl-drawer-open .yl-drawer{transform:translateX(0)}
.yl-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.yl-drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--yl-text-2);border-bottom:1px solid var(--yl-border);min-height:44px}
.yl-drawer a.is-active{color:var(--yl-primary);font-weight:700}
.yl-mask{position:fixed;inset:0;background:rgba(11,33,30,.5);opacity:0;visibility:hidden;transition:opacity .3s;z-index:85}
body.yl-drawer-open .yl-mask{opacity:1;visibility:visible}
body.yl-drawer-open{overflow:hidden}

/* ---------- 按钮 ---------- */
.yl-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-md);font-size:15px;font-weight:600;letter-spacing:.01em;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;white-space:nowrap}
.yl-btn--sm{min-height:40px;padding:0 18px;font-size:14px}
.yl-btn--block{width:100%}
.yl-btn--primary{background:var(--yl-accent);color:#fff}
.yl-btn--primary:hover{background:#E84A26;transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(255,90,54,.9)}
.yl-btn--solid{background:var(--yl-primary);color:var(--yl-inverse)}
.yl-btn--solid:hover{background:var(--yl-primary-hover);transform:translateY(-1px)}
.yl-btn--ghost{border-color:rgba(15,59,52,.28);color:var(--yl-primary);background:transparent}
.yl-btn--ghost:hover{border-color:var(--yl-primary);background:rgba(15,59,52,.06);transform:translateY(-1px)}
.yl-btn--outline-light{border-color:rgba(234,240,238,.5);color:var(--yl-inverse);background:transparent}
.yl-btn--outline-light:hover{border-color:var(--yl-inverse);background:rgba(234,240,238,.1);transform:translateY(-1px)}
.yl-arrow{display:inline-block;transition:transform .2s cubic-bezier(.22,.61,.36,1)}
.yl-btn:hover .yl-arrow,.yl-more:hover .yl-arrow{transform:translateX(4px)}

.yl-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--yl-primary);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.yl-more:hover{color:var(--yl-accent);border-bottom-color:var(--yl-accent)}

/* ---------- 通用标题 ---------- */
.yl-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;color:var(--yl-text-3);margin-bottom:16px}
.yl-eyebrow::before{content:"";width:12px;height:1px;background:var(--yl-accent);display:inline-block}
.yl-h2{position:relative;font-size:clamp(24px,2.4vw,32px);font-weight:700;line-height:1.28;letter-spacing:-.01em;padding-left:16px}
.yl-h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:2px;background:var(--yl-accent)}
.yl-section{padding:84px 0}
.yl-section--tight{padding:60px 0}
.yl-section--alt{background:var(--yl-surface)}
.yl-section__head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;border-top:1px solid var(--yl-border);padding-top:22px;margin-bottom:40px}
.yl-lead{font-size:16px;color:var(--yl-text-2);max-width:720px;margin-top:16px}

/* ---------- Hero ---------- */
.yl-hero{padding:56px 0 72px;background:linear-gradient(180deg,#F1EFE8 0%,var(--yl-bg) 100%);position:relative;overflow:hidden}
.yl-hero__grid{row-gap:40px}
.yl-cover-card{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--yl-surface-2);aspect-ratio:16/9;box-shadow:var(--sh-2)}
.yl-cover-card img{width:100%;height:100%;object-fit:cover}
.yl-cover-card__mask{position:absolute;left:0;right:0;bottom:0;height:96px;background:linear-gradient(180deg,rgba(11,33,30,0) 0%,rgba(11,33,30,.88) 100%);display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:0 20px 16px;color:var(--yl-inverse);font-size:13px}
.yl-cover-card__mask strong{font-size:15px;font-weight:600}
.yl-cover-card__viewers{font-family:var(--yl-mono);font-size:13px;letter-spacing:.02em;opacity:.85;white-space:nowrap}
.yl-live{position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;gap:6px;background:var(--yl-accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.08em;padding:5px 11px;border-radius:var(--r-pill)}
.yl-live i{width:6px;height:6px;border-radius:50%;background:#fff;animation:yl-pulse 1.6s ease-in-out infinite}
@keyframes yl-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.65)}}
.yl-pill-tag{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.86);color:var(--yl-text-2);font-size:12px;padding:5px 12px;border-radius:var(--r-pill);backdrop-filter:blur(4px)}
.yl-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .25s}
.yl-cover-card:hover .yl-play{opacity:1}
.yl-play span{width:64px;height:64px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2)}
.yl-play span::after{content:"";width:0;height:0;border-left:17px solid var(--yl-primary);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:5px}
.yl-h1{font-size:clamp(34px,4.4vw,54px);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin:0 0 18px;color:var(--yl-text)}
.yl-h1 em{font-style:normal;color:var(--yl-primary);box-shadow:inset 0 -.22em 0 var(--yl-accent-soft)}
.yl-hero__sub{font-size:17px;line-height:1.8;color:var(--yl-text-2);margin-bottom:8px}
.yl-hero__meta{font-size:13px;color:var(--yl-text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:4px}
.yl-hero__meta span.dot{width:3px;height:3px;border-radius:50%;background:var(--yl-text-3);display:inline-block}

.yl-countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--yl-border);border:1px solid var(--yl-border);border-radius:var(--r-sm);overflow:hidden;margin:26px 0 24px}
.yl-countdown__cell{background:var(--yl-surface-2);padding:14px 6px;text-align:center}
.yl-countdown__num{font-family:var(--yl-mono);font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1;letter-spacing:-.02em;color:var(--yl-primary);transition:transform .12s ease-out}
.yl-countdown__label{font-size:12px;color:var(--yl-text-3);margin-top:7px;letter-spacing:.08em}
.yl-hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.yl-points li{display:flex;gap:14px;padding:12px 0;border-top:1px solid var(--yl-border);font-size:15px;color:var(--yl-text-2);line-height:1.7}
.yl-points li:last-child{border-bottom:1px solid var(--yl-border)}
.yl-points b{font-family:var(--yl-mono);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--yl-accent);padding-top:4px;flex:0 0 auto}

/* ---------- 数据条 ---------- */
.yl-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--yl-border);border-bottom:1px solid var(--yl-border);background:var(--yl-surface)}
.yl-stats__item{padding:30px 26px;border-left:1px solid var(--yl-border)}
.yl-stats__item:first-child{border-left:0}
.yl-stats__num{font-family:var(--yl-mono);font-size:28px;font-weight:700;line-height:1;color:var(--yl-primary);letter-spacing:-.01em}
.yl-stats__num small{font-size:13px;font-weight:600;margin-left:4px;color:var(--yl-text-3);letter-spacing:0}
.yl-stats__label{font-size:13px;color:var(--yl-text-3);margin-top:10px;letter-spacing:.02em}

/* ---------- 看点矩阵 ---------- */
.yl-matrix{display:grid;grid-template-columns:2fr 1fr;gap:24px}
.yl-matrix__side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.yl-big-card{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--yl-dark);min-height:400px;display:flex;align-items:flex-end}
.yl-big-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;transition:transform .45s cubic-bezier(.22,.61,.36,1)}
.yl-big-card:hover img{transform:scale(1.03)}
.yl-big-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,33,30,.15) 0%,rgba(11,33,30,.9) 100%)}
.yl-big-card__body{position:relative;z-index:2;padding:32px;color:var(--yl-inverse)}
.yl-big-card__body h3{font-size:24px;font-weight:700;line-height:1.35;margin-bottom:12px}
.yl-big-card__body p{font-size:15px;line-height:1.8;color:rgba(234,240,238,.76);max-width:520px}
.yl-small-card{background:var(--yl-surface);border:1px solid var(--yl-border);border-left:3px solid var(--yl-accent);border-radius:var(--r-md);padding:26px 24px;display:flex;flex-direction:column;justify-content:center;gap:10px;transition:transform .25s,box-shadow .25s,border-color .25s}
.yl-small-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,59,52,.2);border-left-color:var(--yl-accent)}
.yl-small-card h3{font-size:18px;font-weight:600}
.yl-small-card p{font-size:14px;color:var(--yl-text-2);line-height:1.75}
.yl-small-card__no{font-family:var(--yl-mono);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--yl-text-3)}

/* ---------- 图文交错 ---------- */
.yl-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.yl-split__media{border-radius:var(--r-lg);overflow:hidden;background:var(--yl-surface-2);aspect-ratio:16/9;box-shadow:var(--sh-1)}
.yl-split__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.yl-split__media:hover img{transform:scale(1.03)}
.yl-split--reverse .yl-split__media{order:2}
.yl-split--reverse .yl-split__text{order:1}
.yl-split__text h3{font-size:24px;font-weight:700;line-height:1.4;margin-bottom:16px}
.yl-split__text p{font-size:16px;color:var(--yl-text-2);margin-bottom:14px}
.yl-check-list{margin-top:8px}
.yl-check-list li{position:relative;padding:9px 0 9px 22px;font-size:15px;color:var(--yl-text-2);border-bottom:1px dashed var(--yl-border)}
.yl-check-list li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:8px;background:var(--yl-accent-soft);border:1px solid var(--yl-accent);border-radius:2px}

/* ---------- 资讯列表（CMS 区） ---------- */
.yl-news{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.yl-news-lead{grid-column:1/-1}
.yl-news-lead__link{display:grid;grid-template-columns:5fr 7fr;background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.yl-news-lead__link:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,59,52,.2)}
.yl-news-lead__media{background:var(--yl-surface-2);aspect-ratio:4/3}
.yl-news-lead__media img{width:100%;height:100%;object-fit:cover}
.yl-news-lead__body{padding:32px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.yl-news-lead__body h3{font-size:22px;font-weight:700;line-height:1.45;transition:color .2s}
.yl-news-lead__link:hover h3{color:var(--yl-primary)}
.yl-news-lead__body p{font-size:15px;color:var(--yl-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.yl-news-card{background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-md);transition:transform .25s,box-shadow .25s,border-color .25s}
.yl-news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,59,52,.2)}
.yl-news-card > a{display:flex;flex-direction:column;gap:12px;padding:26px 24px;height:100%}
.yl-news-card h3{font-size:18px;font-weight:600;line-height:1.5;transition:color .2s;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.yl-news-card:hover h3{color:var(--yl-primary)}
.yl-news-card p{font-size:14px;color:var(--yl-text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.yl-chip{display:inline-flex;align-items:center;align-self:flex-start;background:var(--yl-accent-soft);color:#B93C1E;font-size:12px;font-weight:600;letter-spacing:.04em;padding:4px 11px;border-radius:var(--r-pill)}
.yl-news__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--yl-border);padding-top:14px;margin-top:auto}
.yl-news__meta time{font-family:var(--yl-mono);font-size:13px;color:var(--yl-text-3);letter-spacing:.02em}
.yl-news__meta .yl-arrow{color:var(--yl-primary);font-size:16px}
.yl-empty{border:1px dashed var(--yl-border);border-radius:var(--r-lg);padding:56px 24px;text-align:center;background:var(--yl-surface)}
.yl-empty span{display:block;font-size:15px;color:var(--yl-text-3);margin-bottom:14px}

/* ---------- FAQ ---------- */
.yl-faq{border-top:1px solid var(--yl-border)}
.yl-faq__item{border-bottom:1px solid var(--yl-border)}
.yl-faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:transparent;border:0;text-align:left;padding:22px 4px;font-size:17px;font-weight:600;color:var(--yl-text);line-height:1.6;min-height:44px;transition:color .2s}
.yl-faq__q:hover{color:var(--yl-primary)}
.yl-faq__icon{flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .2s ease}
.yl-faq__icon::before,.yl-faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--yl-accent);border-radius:2px}
.yl-faq__icon::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.yl-faq__icon::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.yl-faq__item.is-open .yl-faq__icon{transform:rotate(45deg)}
.yl-faq__a{max-height:0;overflow:hidden;transition:max-height .3s cubic-bezier(.22,.61,.36,1)}
.yl-faq__a p{font-size:15px;line-height:1.85;color:var(--yl-text-2);padding:0 4px 26px;max-width:820px}

/* ---------- 订阅表单 ---------- */
.yl-subscribe{background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-lg);padding:40px;box-shadow:var(--sh-1)}
.yl-subscribe__head{margin-bottom:24px}
.yl-subscribe__form{display:flex;gap:12px;flex-wrap:wrap}
.yl-subscribe__form input[type="email"]{flex:1 1 280px;min-height:48px;padding:0 18px;border:1px solid var(--yl-border);border-radius:var(--r-md);background:var(--yl-bg);color:var(--yl-text);transition:border-color .2s,box-shadow .2s}
.yl-subscribe__form input[type="email"]::placeholder{color:var(--yl-text-3)}
.yl-subscribe__form input[type="email"]:focus{outline:none;border-color:var(--yl-primary);box-shadow:0 0 0 3px rgba(15,59,52,.12)}
.yl-check{display:flex;align-items:flex-start;gap:10px;font-size:12px;color:var(--yl-text-3);margin-top:16px;line-height:1.7}
.yl-check input{margin-top:4px;accent-color:var(--yl-primary)}
.yl-form-ok{margin-top:14px;font-size:14px;font-weight:600;color:#0F7A62}

/* ---------- CTA ---------- */
.yl-cta{position:relative;background:var(--yl-dark);color:var(--yl-inverse);padding:96px 0;overflow:hidden}
.yl-cta::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(255,90,54,0) 0%,var(--yl-accent) 45%,rgba(255,90,54,0) 100%)}
.yl-cta__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16}
.yl-cta .yl-container{position:relative;z-index:2}
.yl-cta h2{font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.25;margin-bottom:16px;letter-spacing:-.01em}
.yl-cta p{font-size:16px;color:rgba(234,240,238,.78);max-width:620px;margin-bottom:28px}
.yl-cta__btns{display:flex;flex-wrap:wrap;gap:14px}
.yl-cta__card{background:rgba(234,240,238,.06);border:1px solid rgba(234,240,238,.16);border-radius:var(--r-lg);padding:26px}
.yl-cta__card p{font-size:14px;margin:0 0 8px;color:rgba(234,240,238,.8)}
.yl-cta__card p:last-child{margin-bottom:0}
.yl-cta__card strong{display:block;font-size:16px;color:var(--yl-inverse);margin-bottom:12px}

/* ---------- 页脚 ---------- */
.yl-footer{background:var(--yl-dark);color:var(--yl-inverse);padding:72px 0 0}
.yl-footer__grid{row-gap:36px}
.yl-footer__brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:16px}
.yl-footer p{font-size:14px;line-height:1.85;color:rgba(234,240,238,.72);max-width:360px}
.yl-footer__title{font-size:14px;font-weight:600;color:var(--yl-inverse);margin-bottom:16px;letter-spacing:.04em}
.yl-footer__list li{margin-bottom:10px}
.yl-footer__list a{font-size:14px;color:rgba(234,240,238,.72);transition:color .2s}
.yl-footer__list a:hover{color:var(--yl-accent)}
.yl-footer__contact li{font-size:14px;color:rgba(234,240,238,.72);margin-bottom:10px}
.yl-footer__bottom{margin-top:56px;border-top:1px solid rgba(234,240,238,.12);padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(234,240,238,.6)}
.yl-footer__bottom a{color:rgba(234,240,238,.6)}
.yl-footer__bottom a:hover{color:var(--yl-accent)}

/* ---------- 进场动效 ---------- */
.yl-reveal{opacity:0;transform:translateY(24px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.yl-reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .yl-nav-links,.yl-nav__cta{display:none}
  .yl-burger{display:flex}
  .yl-hero{padding:40px 0 56px}
  .yl-section{padding:64px 0}
  .yl-matrix{grid-template-columns:1fr}
  .yl-big-card{min-height:320px}
  .yl-split,.yl-split--reverse{grid-template-columns:1fr;gap:32px}
  .yl-split--reverse .yl-split__media{order:0}
  .yl-split--reverse .yl-split__text{order:0}
  .yl-news-lead__link{grid-template-columns:1fr}
  .yl-stats{grid-template-columns:repeat(2,1fr)}
  .yl-stats__item:nth-child(3){border-left:0}
  .yl-stats__item:nth-child(n+3){border-top:1px solid var(--yl-border)}
  .yl-cta{padding:72px 0}
  .yl-subscribe{padding:32px}
}
@media (max-width:639px){
  .yl-container{padding:0 18px}
  .yl-nav{height:56px}
  .yl-header.is-stuck .yl-nav{height:56px}
  .yl-logo{font-size:16px}
  .yl-h1{font-size:clamp(28px,8.4vw,38px)}
  .yl-topbar{font-size:12px}
  .yl-topbar .yl-container{justify-content:center;text-align:center}
  .yl-news{grid-template-columns:1fr}
  .yl-stats{grid-template-columns:1fr}
  .yl-stats__item{border-left:0;border-top:1px solid var(--yl-border)}
  .yl-stats__item:first-child{border-top:0}
  .yl-hero__btns .yl-btn{width:100%}
  .yl-subscribe__form .yl-btn{width:100%}
  .yl-cta__btns .yl-btn{width:100%}
  .yl-big-card__body{padding:24px 20px}
  .yl-news-lead__body{padding:24px 20px}
  .yl-countdown__label{font-size:11px}
  .yl-footer{padding-top:56px}
  .yl-footer__bottom{font-size:12px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  .yl-reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-invert:#EAF0EE;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,29,.05);
  --sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --yl-font:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --yl-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--yl-bg);color:var(--yl-text);
  font-family:var(--yl-font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--yl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--yl-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--yl-text)}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--yl-accent);outline-offset:2px}
.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){.yl-container{max-width:1280px}}

/* ---------- 公告条 ---------- */
.yl-notice{background:var(--yl-dark);color:var(--yl-invert);font-size:13px}
.yl-notice__in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;padding:6px 0}
.yl-notice__left{display:flex;align-items:center;gap:8px;line-height:1.5}
.yl-notice__left i{color:var(--yl-signal);font-size:12px}
.yl-notice__link{color:var(--yl-invert);opacity:.78;white-space:nowrap;border-bottom:1px solid rgba(234,240,238,.35)}
.yl-notice__link:hover{color:var(--yl-accent);opacity:1;border-color:var(--yl-accent)}
@media (max-width:640px){.yl-notice__left span.yl-hide-sm{display:none}}

/* ---------- 导航 ---------- */
.yl-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.92);backdrop-filter:blur(8px);transition:background .25s ease,box-shadow .25s ease}
.yl-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:0 1px 0 var(--yl-border),var(--sh-1)}
.yl-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease}
.yl-header.is-scrolled .yl-nav{height:64px}
.yl-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--yl-primary);letter-spacing:.01em}
.yl-logo:hover{color:var(--yl-primary-hover)}
.yl-logo span{white-space:nowrap}
.yl-nav-links{display:flex;align-items:center;gap:6px}
.yl-nav-links a{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--yl-text-2)}
.yl-nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;background:var(--yl-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.yl-nav-links a:hover{color:var(--yl-primary)}
.yl-nav-links a:hover::after{transform:scaleX(.6)}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:600}
.yl-nav-links a.is-active::after{transform:scaleX(1)}
.yl-nav-links a.is-active::before{content:"";position:absolute;right:6px;bottom:5px;width:4px;height:4px;border-radius:50%;background:var(--yl-accent)}
.yl-nav__cta{display:flex;align-items:center}
.yl-burger{display:none;width:44px;height:44px;border:1px solid var(--yl-border);border-radius:var(--r-md);background:var(--yl-surface);padding:0;cursor:pointer;position:relative}
.yl-burger span{position:absolute;left:12px;width:20px;height:2px;background:var(--yl-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.yl-burger span:nth-child(1){top:15px}
.yl-burger span:nth-child(2){top:21px}
.yl-burger span:nth-child(3){top:27px}
.yl-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.yl-burger.is-open span:nth-child(2){opacity:0}
.yl-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1023px){
  .yl-nav-links,.yl-nav__cta{display:none}
  .yl-burger{display:block}
  .yl-nav{height:56px}
  .yl-header.is-scrolled .yl-nav{height:56px}
}
.yl-drawer-mask{position:fixed;inset:0;background:rgba(11,33,30,.5);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70}
.yl-drawer-mask.is-open{opacity:1;visibility:visible}
.yl-drawer{position:fixed;top:0;right:0;bottom:0;width:280px;background:var(--yl-surface);z-index:80;transform:translateX(100%);transition:transform .28s cubic-bezier(.22,.61,.36,1);padding:24px 22px;overflow-y:auto;box-shadow:var(--sh-2)}
.yl-drawer.is-open{transform:translateX(0)}
.yl-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.yl-drawer__title{font-size:13px;letter-spacing:.18em;color:var(--yl-text-3)}
.yl-drawer__close{width:44px;height:44px;border:1px solid var(--yl-border);background:transparent;border-radius:var(--r-md);color:var(--yl-text-2);cursor:pointer;font-size:16px}
.yl-drawer__links li+li{margin-top:2px}
.yl-drawer__links a{display:block;padding:13px 0;border-bottom:1px solid var(--yl-border);font-size:15px;color:var(--yl-text)}
.yl-drawer__links a.is-active{color:var(--yl-primary);font-weight:700}
.yl-drawer__contact{margin-top:22px;font-size:13px;color:var(--yl-text-2);line-height:2}
.yl-drawer .yl-btn{width:100%;margin-top:18px;justify-content:center}

/* ---------- 按钮 ---------- */
.yl-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-md);border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
.yl-btn .yl-arrow{transition:transform .2s ease}
.yl-btn:hover .yl-arrow{transform:translateX(4px)}
.yl-btn--primary{background:var(--yl-accent);color:#fff;border-color:var(--yl-accent)}
.yl-btn--primary:hover{background:#E84A27;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.yl-btn--solid{background:var(--yl-primary);color:var(--yl-invert);border-color:var(--yl-primary)}
.yl-btn--solid:hover{background:var(--yl-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.yl-btn--ghost{background:transparent;color:var(--yl-primary);border-color:var(--yl-border)}
.yl-btn--ghost:hover{border-color:var(--yl-primary);color:var(--yl-primary);background:var(--yl-surface)}
.yl-btn--light{background:transparent;color:var(--yl-invert);border-color:rgba(234,240,238,.4)}
.yl-btn--light:hover{color:#fff;border-color:var(--yl-invert);transform:translateY(-1px)}
.yl-btn--sm{min-height:40px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.yl-hero{position:relative;overflow:hidden;background-color:#0F3B34}
.yl-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.yl-hero__veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,33,30,.94) 0%,rgba(11,33,30,.78) 46%,rgba(15,59,52,.62) 100%)}
.yl-hero__in{position:relative;z-index:2;padding:76px 0 60px;color:var(--yl-invert)}
.yl-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:rgba(234,240,238,.72)}
.yl-eyebrow::before{content:"";width:12px;height:1px;background:var(--yl-accent)}
.yl-hero h1{margin:16px 0 0;font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;max-width:20ch}
.yl-hero__sub{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(234,240,238,.86);max-width:56ch}
.yl-hero__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.yl-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;background:rgba(234,240,238,.12);color:rgba(234,240,238,.92);border:1px solid rgba(234,240,238,.18)}
.yl-tag--accent{background:var(--yl-accent-soft);color:#B33A1E;border-color:transparent}
.yl-hero__crumb{position:relative;z-index:2;padding:0 0 20px}
.yl-crumb{font-size:13px;color:rgba(234,240,238,.66)}
.yl-crumb a{color:inherit;border-bottom:1px solid transparent}
.yl-crumb a:hover{color:#fff;border-color:var(--yl-accent)}
.yl-crumb .yl-crumb__sep{margin:0 8px;opacity:.5}
.yl-crumb .yl-crumb__now{color:#fff}

/* ---------- 板块通用 ---------- */
.yl-section{padding:64px 0}
.yl-section--tight{padding:44px 0}
.yl-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding-top:20px;border-top:1px solid var(--yl-border);margin-bottom:28px}
.yl-sec-head h2{position:relative;padding-left:14px;font-size:clamp(20px,2.4vw,28px);font-weight:700;letter-spacing:-.01em}
.yl-sec-head h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:2px;background:var(--yl-accent)}
.yl-sec-head__link{font-size:14px;font-weight:600;white-space:nowrap}
.yl-lead{font-size:17px;line-height:1.95;color:var(--yl-text-2)}
.yl-body p+p{margin-top:1.1em}
.yl-body h3{margin-top:1.8em;font-size:19px;font-weight:600}
.yl-body h3:first-child{margin-top:0}

/* ---------- 布局栅格 ---------- */
.yl-grid{display:grid;gap:32px}
.yl-grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:start}
@media (max-width:1023px){.yl-grid--7-5{grid-template-columns:1fr;gap:28px}}
.yl-cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--yl-border);border:1px solid var(--yl-border);border-radius:var(--r-md);overflow:hidden;margin-top:26px}
@media (max-width:640px){.yl-cards-2{grid-template-columns:1fr}}
.yl-key{background:var(--yl-surface);padding:24px 22px}
.yl-key__num{font-family:var(--yl-mono);font-size:22px;font-weight:700;color:var(--yl-accent);letter-spacing:.02em}
.yl-key h3{margin-top:10px;font-size:17px;font-weight:600}
.yl-key p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--yl-text-2)}

/* ---------- 侧栏 ---------- */
.yl-side{display:grid;gap:20px;position:sticky;top:96px}
@media (max-width:1023px){.yl-side{position:static;margin-top:8px}}
.yl-panel{background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.yl-panel__title{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--yl-primary);display:flex;align-items:center;gap:8px}
.yl-panel__title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--yl-accent)}
.yl-facts{margin-top:14px}
.yl-facts li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--yl-border);font-size:14px}
.yl-facts li:last-child{border-bottom:0;padding-bottom:0}
.yl-facts dt{color:var(--yl-text-2)}
.yl-facts .yl-facts__v{font-family:var(--yl-mono);font-weight:700;color:var(--yl-primary)}
.yl-jump{margin-top:14px}
.yl-jump li+li{margin-top:2px}
.yl-jump a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--yl-text);border-bottom:1px solid var(--yl-border)}
.yl-jump a:hover{color:var(--yl-primary)}
.yl-jump a i{color:var(--yl-accent);font-size:12px;transition:transform .2s ease}
.yl-jump a:hover i{transform:translateX(3px)}
.yl-panel--cta{background:var(--yl-dark);border-color:var(--yl-dark)}
.yl-panel--cta .yl-panel__title{color:var(--yl-invert)}
.yl-panel--cta p{margin-top:12px;font-size:14px;line-height:1.85;color:rgba(234,240,238,.78)}
.yl-panel--cta .yl-btn{width:100%;margin-top:18px}

/* ---------- 清单 ---------- */
.yl-check{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}
@media (max-width:900px){.yl-check{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.yl-check{grid-template-columns:1fr}}
.yl-check__item{background:var(--yl-surface);border:1px solid var(--yl-border);border-top:3px solid var(--yl-primary);border-radius:var(--r-md);padding:20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.yl-check__item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,59,52,.2)}
.yl-check__item h3{font-size:16px;font-weight:600}
.yl-check__item p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--yl-text-2)}
.yl-check__item i{color:var(--yl-accent);font-size:15px}
.yl-check__ico{margin-bottom:10px}

/* ---------- 步骤细线列表 ---------- */
.yl-steps{margin-top:26px;border-top:1px solid var(--yl-border)}
.yl-steps li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--yl-border)}
.yl-steps .yl-steps__n{font-family:var(--yl-mono);font-size:20px;font-weight:700;color:var(--yl-primary);letter-spacing:.02em;line-height:1.4}
.yl-steps h3{font-size:16px;font-weight:600}
.yl-steps p{margin-top:6px;font-size:14px;line-height:1.85;color:var(--yl-text-2)}
@media (max-width:520px){.yl-steps li{grid-template-columns:44px minmax(0,1fr);gap:12px}.yl-steps .yl-steps__n{font-size:17px}}

/* ---------- 图区 ---------- */
.yl-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--yl-border);background:var(--yl-surface-2);box-shadow:var(--sh-1)}
.yl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.yl-figure figcaption{padding:12px 16px;font-size:13px;color:var(--yl-text-3);background:var(--yl-surface)}

.yl-note{display:flex;gap:12px;margin-top:26px;padding:18px 20px;border-left:3px solid var(--yl-accent);background:var(--yl-surface-2);border-radius:0 var(--r-md) var(--r-md) 0;font-size:14px;line-height:1.85;color:var(--yl-text-2)}
.yl-note i{color:var(--yl-accent);margin-top:4px}

/* ---------- CTA ---------- */
.yl-cta{position:relative;background:var(--yl-dark);color:var(--yl-invert);padding:88px 0;overflow:hidden}
.yl-cta::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--yl-accent) 0%,rgba(255,90,54,.1) 70%,transparent 100%)}
.yl-cta__grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:center;position:relative;z-index:2}
@media (max-width:1023px){.yl-cta__grid{grid-template-columns:1fr;gap:28px}}
.yl-cta h2{font-size:clamp(24px,3.2vw,34px);font-weight:800;letter-spacing:-.01em;color:#fff}
.yl-cta p{margin-top:14px;font-size:16px;line-height:1.9;color:rgba(234,240,238,.8);max-width:52ch}
.yl-cta__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media (max-width:520px){.yl-cta__btns .yl-btn{width:100%}}
.yl-cta__card{background:rgba(234,240,238,.08);border:1px solid rgba(234,240,238,.16);border-radius:var(--r-lg);padding:24px}
.yl-cta__card h3{font-size:15px;font-weight:600;color:#fff}
.yl-cta__card ul{margin-top:14px}
.yl-cta__card li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(234,240,238,.78);padding:9px 0;border-bottom:1px solid rgba(234,240,238,.12)}
.yl-cta__card li:last-child{border-bottom:0}
.yl-cta__card i{color:var(--yl-signal);font-size:12px}

/* ---------- 页脚 ---------- */
.yl-footer{background:var(--yl-dark);color:var(--yl-invert);padding:64px 0 0}
.yl-footer__grid{padding-bottom:44px}
.yl-footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff}
.yl-footer p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(234,240,238,.72);max-width:38ch}
.yl-footer__contact li{font-size:14px;color:rgba(234,240,238,.72);line-height:1.9}
.yl-footer__title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.yl-footer__list li+li{margin-top:8px}
.yl-footer__list a{font-size:14px;color:rgba(234,240,238,.72)}
.yl-footer__list a:hover{color:var(--yl-accent)}
.yl-footer__bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:18px 0;border-top:1px solid rgba(234,240,238,.12);font-size:13px;color:rgba(234,240,238,.62)}

/* ---------- 入场动效 ---------- */
.yl-reveal{opacity:0;transform:translateY(24px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.yl-reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .yl-reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-inverse:#EAF0EE;
  --yl-r-sm:8px;
  --yl-r-md:14px;
  --yl-r-lg:20px;
  --yl-r-pill:999px;
  --yl-sh-1:0 1px 2px rgba(16,32,29,.05);
  --yl-sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --yl-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --yl-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--yl-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--yl-text);
  background:var(--yl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--yl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--yl-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--yl-accent);outline-offset:2px;border-radius:4px}
.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){.yl-container{max-width:1280px}}

/* ---------- 顶部公告条 ---------- */
.yl-topbar{
  background:var(--yl-dark);
  color:var(--yl-inverse);
  font-size:13px;
  line-height:34px;
  height:34px;
  overflow:hidden;
}
.yl-topbar .yl-container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.yl-topbar__left{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.yl-topbar__left i{color:var(--yl-signal);font-size:12px}
.yl-topbar a{color:var(--yl-inverse);border-bottom:1px solid rgba(234,240,238,.4);white-space:nowrap}
.yl-topbar a:hover{color:var(--yl-accent);border-color:var(--yl-accent)}
@media (max-width:640px){.yl-topbar__link{display:none}}

/* ---------- 导航 ---------- */
.yl-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.yl-nav{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
  transition:height .25s ease;
}
.yl-header.is-scrolled{box-shadow:0 1px 0 var(--yl-border);background:rgba(255,255,255,.94)}
.yl-header.is-scrolled .yl-nav{height:64px}
.yl-logo{display:flex;align-items:center;gap:10px;color:var(--yl-text);font-weight:800;font-size:17px;letter-spacing:-.01em}
.yl-logo span{white-space:nowrap}
.yl-logo:hover{color:var(--yl-primary)}
.yl-nav-links{display:flex;align-items:center;gap:28px}
.yl-nav-links a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;letter-spacing:.02em;
  color:var(--yl-text-2);
  padding:6px 0;
}
.yl-nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--yl-accent);border-radius:2px;transition:width .2s ease;
}
.yl-nav-links a:hover{color:var(--yl-primary)}
.yl-nav-links a:hover::after{width:60%}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:600}
.yl-nav-links a.is-active::after{width:100%}
.yl-nav-links a.is-active::before{
  content:"";position:absolute;right:0;bottom:-1px;width:4px;height:4px;border-radius:50%;background:var(--yl-accent);
}
.yl-nav__cta{display:flex;align-items:center}
.yl-burger{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.yl-burger span{display:block;width:22px;height:2px;background:var(--yl-primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.yl-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.yl-burger.is-open span:nth-child(2){opacity:0}
.yl-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.yl-drawer-mask{
  position:fixed;inset:0;background:rgba(11,33,30,.5);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:80;
}
.yl-drawer-mask.is-open{opacity:1;visibility:visible}
.yl-drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;max-width:86vw;
  background:var(--yl-surface);z-index:90;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  padding:24px 22px;overflow-y:auto;
  box-shadow:-20px 0 40px -24px rgba(11,33,30,.4);
}
.yl-drawer.is-open{transform:translateX(0)}
.yl-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.yl-drawer__close{width:44px;height:44px;border:1px solid var(--yl-border);background:var(--yl-surface);border-radius:var(--yl-r-md);cursor:pointer;color:var(--yl-primary);font-size:16px}
.yl-drawer__links{display:flex;flex-direction:column;border-top:1px solid var(--yl-border)}
.yl-drawer__links a{
  padding:14px 2px;border-bottom:1px solid var(--yl-border);
  font-size:16px;color:var(--yl-text);font-weight:500;min-height:44px;display:flex;align-items:center;
}
.yl-drawer__links a.is-active{color:var(--yl-accent)}
.yl-drawer__info{margin-top:24px;font-size:14px;color:var(--yl-text-2);line-height:1.9}
.yl-drawer .yl-btn{width:100%;justify-content:center;margin-top:8px}

/* ---------- 按钮 ---------- */
.yl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--yl-r-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.yl-btn--sm{min-height:40px;padding:0 18px;font-size:14px}
.yl-btn--primary{background:var(--yl-accent);color:#fff;box-shadow:var(--yl-sh-1)}
.yl-btn--primary:hover{background:#E8471F;color:#fff;transform:translateY(-1px);box-shadow:var(--yl-sh-2)}
.yl-btn--primary:active{transform:translateY(0)}
.yl-btn--dark{background:var(--yl-primary);color:var(--yl-inverse)}
.yl-btn--dark:hover{background:var(--yl-primary-hover);color:#fff;transform:translateY(-1px)}
.yl-btn--ghost{background:transparent;border-color:var(--yl-border);color:var(--yl-text)}
.yl-btn--ghost:hover{border-color:var(--yl-primary);color:var(--yl-primary);transform:translateY(-1px)}
.yl-btn--inverse{background:transparent;border-color:rgba(234,240,238,.4);color:var(--yl-inverse)}
.yl-btn--inverse:hover{border-color:var(--yl-accent);color:var(--yl-accent);transform:translateY(-1px)}
.yl-arrow{display:inline-block;transition:transform .2s ease}
.yl-btn:hover .yl-arrow{transform:translateX(4px)}

/* ---------- 通用 ---------- */
.yl-main{padding-bottom:0}
.yl-section{padding:64px 0}
.yl-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:var(--yl-text-3);text-transform:uppercase;
}
.yl-eyebrow::before{content:"";width:12px;height:1px;background:var(--yl-text-3)}
.yl-h2{
  position:relative;font-size:30px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
  padding-left:16px;margin-bottom:14px;
}
.yl-h2::before{content:"";position:absolute;left:0;top:.35em;width:4px;height:18px;background:var(--yl-accent);border-radius:2px}
.yl-divider{height:1px;background:var(--yl-border);border:0;margin:0}
.yl-reveal{opacity:0;transform:translateY(24px)}
.yl-reveal.is-in{opacity:1;transform:none;transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}

/* ---------- 文章头部 ---------- */
.yl-article-head{padding:36px 0 28px}
.yl-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--yl-text-3);padding:0;margin-bottom:18px}
.yl-breadcrumb a{color:var(--yl-text-3)}
.yl-breadcrumb a:hover{color:var(--yl-primary);text-decoration:underline}
.yl-breadcrumb .sep{color:var(--yl-border)}
.yl-breadcrumb .current{color:var(--yl-primary);font-weight:600}
.yl-cat-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 14px;border-radius:var(--yl-r-pill);
  background:var(--yl-accent-soft);color:#B83A17;
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.yl-article-title{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;line-height:1.22;letter-spacing:-.02em;
  max-width:900px;margin-bottom:18px;
}
.yl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--yl-text-3);font-family:var(--yl-mono);letter-spacing:.02em}
.yl-meta span{display:inline-flex;align-items:center;gap:6px}
.yl-meta i{color:var(--yl-text-3);font-size:12px}
.yl-head-rule{margin-top:26px;height:1px;background:var(--yl-border)}

/* ---------- 正文布局 ---------- */
.yl-layout{padding:36px 0 0}
.yl-article-col{min-width:0}
.yl-article{
  max-width:760px;
  font-size:17px;line-height:1.9;color:var(--yl-text);
  background:var(--yl-surface);
  border:1px solid var(--yl-border);
  border-radius:var(--yl-r-lg);
  padding:34px 36px;
  box-shadow:var(--yl-sh-1);
}
.yl-article p{margin:0 0 1.4em}
.yl-article > *:last-child{margin-bottom:0}
.yl-article h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;
  margin:2.2em 0 .8em;padding-left:16px;letter-spacing:-.01em;
}
.yl-article h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:18px;background:var(--yl-accent);border-radius:2px}
.yl-article h3{font-size:19px;font-weight:600;margin:1.8em 0 .6em}
.yl-article ul{margin:0 0 1.4em;padding:0}
.yl-article ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.yl-article ul li::before{content:"";position:absolute;left:2px;top:.75em;width:7px;height:7px;border-radius:2px;background:var(--yl-accent)}
.yl-article ol{list-style:none;counter-reset:ylol;margin:0 0 1.4em;padding:0}
.yl-article ol li{counter-increment:ylol;position:relative;padding-left:34px;margin-bottom:.6em}
.yl-article ol li::before{
  content:counter(ylol,decimal-leading-zero);
  position:absolute;left:0;top:.15em;
  font-family:var(--yl-mono);font-size:14px;font-weight:600;color:var(--yl-accent);
}
.yl-article blockquote{
  margin:1.8em 0;padding:20px 24px;
  background:var(--yl-surface-2);
  border-left:3px solid var(--yl-accent);
  border-radius:0 var(--yl-r-md) var(--yl-r-md) 0;
  color:var(--yl-text-2);font-size:16px;
}
.yl-article img{border-radius:var(--yl-r-md);margin:1.6em auto}
.yl-article figure{margin:1.8em 0}
.yl-article figcaption{font-size:13px;color:var(--yl-text-3);text-align:center;margin-top:10px}
.yl-article table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--yl-border);border-radius:var(--yl-r-md);overflow:hidden;margin:1.6em 0;font-size:15px}
.yl-article thead th{background:var(--yl-primary);color:var(--yl-inverse);font-weight:600;text-align:left;padding:12px 16px}
.yl-article tbody td{padding:12px 16px;border-top:1px solid var(--yl-border)}
.yl-article tbody tr:nth-child(even){background:var(--yl-surface-2)}
.yl-article pre{
  background:var(--yl-dark);color:var(--yl-inverse);
  font-family:var(--yl-mono);font-size:14px;line-height:1.7;
  padding:18px 20px;border-radius:var(--yl-r-md);overflow-x:auto;margin:1.6em 0;
}
.yl-article code{font-family:var(--yl-mono);font-size:.92em;background:var(--yl-surface-2);padding:2px 6px;border-radius:6px}
.yl-article pre code{background:transparent;padding:0;color:inherit}
.yl-empty{
  border:1px dashed var(--yl-border);border-radius:var(--yl-r-md);
  padding:48px 24px;text-align:center;color:var(--yl-text-2);
}
.yl-empty i{display:block;font-size:26px;color:var(--yl-text-3);margin-bottom:12px}
.yl-empty a{display:inline-block;margin-top:14px;font-weight:600;border-bottom:1px solid currentColor}

/* ---------- 标签与分享 ---------- */
.yl-article-foot{max-width:760px;margin-top:26px}
.yl-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.yl-tag{
  display:inline-flex;align-items:center;min-height:32px;padding:0 14px;
  border:1px solid var(--yl-border);border-radius:var(--yl-r-pill);
  font-size:13px;color:var(--yl-text-2);background:var(--yl-surface);
  transition:border-color .2s ease,color .2s ease;
}
.yl-tag:hover{border-color:var(--yl-primary);color:var(--yl-primary)}
.yl-share{display:flex;align-items:center;gap:12px;padding-top:22px;border-top:1px solid var(--yl-border)}
.yl-share__label{font-size:13px;color:var(--yl-text-3);letter-spacing:.06em}
.yl-share__btn{
  width:44px;height:44px;border-radius:var(--yl-r-md);
  border:1px solid var(--yl-border);background:var(--yl-surface);
  color:var(--yl-text-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:15px;transition:all .2s ease;
}
.yl-share__btn:hover{border-color:var(--yl-primary);color:var(--yl-primary);transform:translateY(-2px)}

/* ---------- 上下篇 ---------- */
.yl-pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px;max-width:760px}
.yl-pager__card{
  background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--yl-r-md);
  padding:20px 22px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.yl-pager__card:hover{transform:translateY(-4px);border-color:rgba(15,59,52,.25);box-shadow:var(--yl-sh-2)}
.yl-pager__dir{font-size:12px;letter-spacing:.14em;color:var(--yl-text-3);margin-bottom:8px;display:block}
.yl-pager__title{font-size:16px;font-weight:600;line-height:1.5;color:var(--yl-text)}
.yl-pager__card:hover .yl-pager__title{color:var(--yl-primary)}
.yl-pager__card--next{text-align:right}

/* ---------- 相关推荐 ---------- */
.yl-related{margin-top:64px}
.yl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.yl-card{
  background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--yl-r-md);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.yl-card:hover{transform:translateY(-4px);border-color:rgba(15,59,52,.25);box-shadow:var(--yl-sh-2)}
.yl-card__media{position:relative;aspect-ratio:4/3;background:var(--yl-surface-2);overflow:hidden}
.yl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.yl-card:hover .yl-card__media img{transform:scale(1.04)}
.yl-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.yl-card__title{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.yl-card:hover .yl-card__title{color:var(--yl-primary)}
.yl-card__desc{font-size:14px;color:var(--yl-text-2);line-height:1.7;margin-bottom:14px}
.yl-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--yl-text-3);font-family:var(--yl-mono)}
.yl-card__meta i{transition:transform .2s ease}
.yl-card:hover .yl-card__meta i{transform:translateX(4px);color:var(--yl-accent)}

.yl-backrow{margin-top:34px}

/* ---------- 侧栏 ---------- */
.yl-sidebar{min-width:0}
.yl-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.yl-side__card{background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--yl-r-md);padding:22px 22px 24px}
.yl-side__title{position:relative;font-size:16px;font-weight:700;padding-left:12px;margin-bottom:16px}
.yl-side__title::before{content:"";position:absolute;left:0;top:.35em;width:3px;height:15px;background:var(--yl-accent);border-radius:2px}
.yl-side__list li{border-top:1px solid var(--yl-border)}
.yl-side__list li:first-child{border-top:0}
.yl-side__list a{display:flex;gap:10px;padding:12px 0;font-size:14px;line-height:1.6;color:var(--yl-text-2)}
.yl-side__list a:hover{color:var(--yl-primary)}
.yl-side__num{font-family:var(--yl-mono);font-size:13px;color:var(--yl-accent);font-weight:600;flex:none}
.yl-side__facts li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--yl-border);font-size:14px;color:var(--yl-text-2)}
.yl-side__facts li:first-child{border-top:0;padding-top:0}
.yl-side__facts b{font-family:var(--yl-mono);color:var(--yl-primary);font-weight:700}
.yl-side__cta{margin-top:18px;width:100%}

/* ---------- CTA 大区块 ---------- */
.yl-cta{
  position:relative;background:var(--yl-dark);color:var(--yl-inverse);margin-top:72px;
  padding:88px 0;overflow:hidden;
}
.yl-cta::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--yl-accent),rgba(255,90,54,0))}
.yl-cta__grid{display:grid;grid-template-columns:2fr 1fr;gap:48px;align-items:center}
.yl-cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.24;letter-spacing:-.02em;margin-bottom:16px;color:#fff}
.yl-cta p{font-size:16px;color:rgba(234,240,238,.78);max-width:560px;margin-bottom:28px}
.yl-cta__actions{display:flex;flex-wrap:wrap;gap:14px}
.yl-cta__card{background:rgba(234,240,238,.06);border:1px solid rgba(234,240,238,.14);border-radius:var(--yl-r-md);padding:26px 24px}
.yl-cta__card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:14px}
.yl-cta__card li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:rgba(234,240,238,.75);padding:9px 0;border-top:1px solid rgba(234,240,238,.12)}
.yl-cta__card li:first-of-type{border-top:0}
.yl-cta__card b{color:var(--yl-accent);font-family:var(--yl-mono);font-weight:700}

/* ---------- 页脚 ---------- */
.yl-footer{background:var(--yl-primary);color:var(--yl-inverse);padding:64px 0 0;margin-top:0}
.yl-footer__grid{padding-bottom:48px}
.yl-footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.yl-footer p{font-size:14px;line-height:1.85;color:rgba(234,240,238,.72);max-width:340px}
.yl-footer__contact li{font-size:14px;color:rgba(234,240,238,.72);line-height:1.9}
.yl-footer__title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.yl-footer__list li{margin-bottom:10px}
.yl-footer__list a{font-size:14px;color:rgba(234,240,238,.72)}
.yl-footer__list a:hover{color:var(--yl-accent)}
.yl-footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid rgba(234,240,238,.12);
  font-size:13px;color:rgba(234,240,238,.6);
}
.yl-footer__bottom a{color:rgba(234,240,238,.6)}
.yl-footer__bottom a:hover{color:var(--yl-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .yl-nav-links{display:none}
  .yl-nav__cta{display:none}
  .yl-burger{display:flex}
  .yl-section{padding:52px 0}
  .yl-cards{grid-template-columns:repeat(2,1fr)}
  .yl-side{position:static}
  .yl-sidebar{margin-top:36px}
  .yl-cta__grid{grid-template-columns:1fr;gap:32px}
  .yl-cta{padding:64px 0}
}
@media (max-width:768px){
  .yl-article{padding:26px 22px;font-size:16px}
  .yl-article h2{font-size:21px}
  .yl-pager{grid-template-columns:1fr}
  .yl-pager__card--next{text-align:left}
  .yl-cta h2{font-size:26px}
}
@media (max-width:640px){
  .yl-container{padding:0 18px}
  .yl-nav{height:56px}
  .yl-header.is-scrolled .yl-nav{height:56px}
  .yl-logo{font-size:15px}
  .yl-article-head{padding:26px 0 20px}
  .yl-cards{grid-template-columns:1fr}
  .yl-section{padding:44px 0}
  .yl-related{margin-top:48px}
  .yl-cta__actions .yl-btn{width:100%}
  .yl-article-title{margin-bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .yl-reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-hover:#E94A26;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-invert:#EAF0EE;
  --yl-r-sm:8px;
  --yl-r-md:14px;
  --yl-r-lg:20px;
  --yl-r-pill:999px;
  --yl-sh-1:0 1px 2px rgba(16,32,29,.05);
  --yl-sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --yl-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --yl-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --yl-ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--yl-bg);color:var(--yl-text);
  font-family:var(--yl-sans);font-size:16px;line-height:1.85;
  font-weight:400;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--yl-primary);text-decoration:none;transition:color .2s var(--yl-ease)}
a:hover{color:var(--yl-accent)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;color:var(--yl-text);font-family:var(--yl-sans);line-height:1.3}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,button,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--yl-accent);outline-offset:2px}
.yl-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.yl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--yl-r-md);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .22s var(--yl-ease),color .22s var(--yl-ease),
             border-color .22s var(--yl-ease),transform .22s var(--yl-ease),box-shadow .22s var(--yl-ease);
}
.yl-btn .yl-arrow{display:inline-block;transition:transform .22s var(--yl-ease)}
.yl-btn:hover .yl-arrow{transform:translateX(4px)}
.yl-btn--primary{background:var(--yl-accent);color:#fff}
.yl-btn--primary:hover{background:var(--yl-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--yl-sh-2)}
.yl-btn--primary:active{background:#CF3F1F;color:#fff;transform:translateY(0)}
.yl-btn--ghost{background:transparent;border-color:var(--yl-border);color:var(--yl-text)}
.yl-btn--ghost:hover{border-color:var(--yl-primary);color:var(--yl-primary);transform:translateY(-1px)}
.yl-btn--invert{background:transparent;border-color:rgba(234,240,238,.45);color:var(--yl-invert)}
.yl-btn--invert:hover{background:rgba(234,240,238,.12);border-color:var(--yl-invert);color:#fff;transform:translateY(-1px)}
.yl-btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- 胶囊 / 徽章 ---------- */
.yl-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--yl-r-pill);
  font-size:12px;line-height:1.6;font-weight:600;letter-spacing:.02em;
  background:var(--yl-surface-2);color:var(--yl-text-2);
}
.yl-pill--accent{background:var(--yl-accent-soft);color:#B33A1C}
.yl-seal{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border:1px solid var(--yl-accent);border-radius:4px;
  color:var(--yl-accent);font-size:13px;font-weight:700;line-height:1;
}

/* ---------- 公告条 ---------- */
.yl-notice{background:var(--yl-dark);color:var(--yl-invert);font-size:13px}
.yl-notice__inner{display:flex;align-items:center;gap:12px;min-height:34px;flex-wrap:wrap}
.yl-notice__dot{
  width:7px;height:7px;border-radius:50%;background:var(--yl-signal);flex:0 0 auto;
  animation:ylPulse 1.6s ease-in-out infinite;
}
@keyframes ylPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.55}}
.yl-notice__text{flex:1 1 auto;color:rgba(234,240,238,.86)}
.yl-notice__link{color:var(--yl-invert);font-weight:600;white-space:nowrap}
.yl-notice__link:hover{color:var(--yl-accent)}

/* ---------- 导航 ---------- */
.yl-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--yl-ease),box-shadow .2s var(--yl-ease),background-color .2s var(--yl-ease);
}
.yl-header.is-scrolled{border-bottom-color:var(--yl-border);background:rgba(246,244,239,.96);box-shadow:0 1px 0 rgba(16,32,29,.04)}
.yl-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .2s var(--yl-ease)}
.yl-header.is-scrolled .yl-nav{height:64px}
.yl-logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--yl-primary);white-space:nowrap}
.yl-logo:hover{color:var(--yl-primary)}
.yl-nav-links{display:flex;align-items:center;gap:26px}
.yl-nav-links a{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--yl-text);
}
.yl-nav-links a::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;
  background:var(--yl-accent);transition:width .2s var(--yl-ease);
}
.yl-nav-links a:hover{color:var(--yl-primary)}
.yl-nav-links a:hover::after{width:60%}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:700}
.yl-nav-links a.is-active::after{width:100%}
.yl-nav-links a.is-active::before{
  content:"";position:absolute;right:-12px;bottom:1px;width:4px;height:4px;border-radius:50%;background:var(--yl-accent);
}
.yl-nav__cta{display:flex;align-items:center}
.yl-burger{
  display:none;width:44px;height:44px;border:1px solid var(--yl-border);border-radius:var(--yl-r-md);
  background:var(--yl-surface);cursor:pointer;padding:0;position:relative;
}
.yl-burger span{
  position:absolute;left:12px;width:20px;height:2px;background:var(--yl-primary);border-radius:2px;
  transition:transform .2s var(--yl-ease),opacity .2s var(--yl-ease),top .2s var(--yl-ease);
}
.yl-burger span:nth-child(1){top:15px}
.yl-burger span:nth-child(2){top:21px}
.yl-burger span:nth-child(3){top:27px}
.yl-burger.is-open span:nth-child(1){top:21px;transform:rotate(45deg)}
.yl-burger.is-open span:nth-child(2){opacity:0}
.yl-burger.is-open span:nth-child(3){top:21px;transform:rotate(-45deg)}
.yl-mask{
  position:fixed;inset:0;background:rgba(11,33,30,.5);opacity:0;visibility:hidden;
  transition:opacity .25s var(--yl-ease),visibility .25s var(--yl-ease);z-index:70;
}
.yl-mask.is-open{opacity:1;visibility:visible}
.yl-drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:80;
  background:var(--yl-surface);border-left:1px solid var(--yl-border);
  transform:translateX(100%);transition:transform .28s var(--yl-ease);
  padding:24px 22px 32px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
}
.yl-drawer.is-open{transform:translateX(0)}
.yl-drawer__head{display:flex;align-items:center;justify-content:space-between}
.yl-drawer__title{font-size:15px;font-weight:700;color:var(--yl-primary)}
.yl-drawer__close{
  width:40px;height:40px;border:1px solid var(--yl-border);background:var(--yl-surface);
  border-radius:var(--yl-r-md);cursor:pointer;color:var(--yl-text-2);font-size:18px;line-height:1;
}
.yl-drawer__close:hover{border-color:var(--yl-primary);color:var(--yl-primary)}
.yl-drawer__list{display:flex;flex-direction:column;gap:2px}
.yl-drawer__list a{
  display:block;padding:13px 0;font-size:15px;color:var(--yl-text);
  border-bottom:1px solid var(--yl-border);
}
.yl-drawer__list a.is-active{color:var(--yl-primary);font-weight:700}
.yl-drawer__list a:hover{color:var(--yl-accent)}
.yl-drawer__meta{font-size:13px;color:var(--yl-text-2);line-height:1.9}

/* ---------- Hero ---------- */
.yl-hero{position:relative;overflow:hidden;background:var(--yl-dark);color:var(--yl-invert)}
.yl-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.yl-hero__overlay{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,33,30,.9) 0%,rgba(11,33,30,.78) 55%,rgba(15,59,52,.72) 100%);
}
.yl-hero__inner{position:relative;padding:74px 0 66px;max-width:840px}
.yl-hero .yl-eyebrow{color:rgba(234,240,238,.72)}
.yl-hero__title{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.22;
  letter-spacing:-.02em;color:#fff;margin:0 0 16px;
}
.yl-hero__title .yl-hl{color:var(--yl-accent)}
.yl-hero__sub{font-size:17px;line-height:1.8;color:rgba(234,240,238,.82);max-width:640px;margin:0 0 26px}
.yl-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.yl-hero__meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:rgba(234,240,238,.66);
}
.yl-hero__meta span{display:inline-flex;align-items:center;gap:8px}
.yl-hero__meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--yl-signal)}

/* ---------- 面包屑 ---------- */
.yl-crumb-wrap{background:var(--yl-surface);border-bottom:1px solid var(--yl-border)}
.yl-crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0;font-size:13px;color:var(--yl-text-3)}
.yl-crumb a{color:var(--yl-text-3)}
.yl-crumb a:hover{color:var(--yl-primary);text-decoration:underline}
.yl-crumb__sep{color:var(--yl-border)}
.yl-crumb__current{color:var(--yl-primary);font-weight:600}

/* ---------- 板块通用 ---------- */
.yl-section{padding:84px 0}
.yl-section--tight{padding:64px 0}
.yl-section--surface{background:var(--yl-surface)}
.yl-section__head{max-width:780px;border-top:1px solid var(--yl-border);padding-top:28px;margin-bottom:44px}
.yl-section__head--dark{border-top-color:rgba(234,240,238,.16)}
.yl-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:600;letter-spacing:.18em;color:var(--yl-text-3);
  margin-bottom:14px;
}
.yl-eyebrow::before{content:"";width:12px;height:1px;background:currentColor}
.yl-section__title{
  position:relative;padding-left:16px;margin:0 0 14px;
  font-size:clamp(23px,3vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.35;
}
.yl-section__title::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:18px;
  background:var(--yl-accent);border-radius:2px;
}
.yl-section__desc{font-size:16px;color:var(--yl-text-2);max-width:720px;margin:0}

/* ---------- 信任条 ---------- */
.yl-trust{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--yl-border);border-bottom:1px solid var(--yl-border);
}
.yl-trust__item{padding:26px 22px 26px 0;border-left:1px solid var(--yl-border)}
.yl-trust__item:first-child{border-left:0;padding-left:0}
.yl-trust__num{
  font-family:var(--yl-mono);font-size:28px;font-weight:700;color:var(--yl-primary);
  line-height:1.2;letter-spacing:-.01em;margin-bottom:4px;
}
.yl-trust__label{font-size:13px;color:var(--yl-text-2);line-height:1.7}

/* ---------- 步骤流水线 ---------- */
.yl-steps{position:relative;margin-top:8px}
.yl-steps::before{
  content:"";position:absolute;left:33px;top:26px;bottom:34px;width:1px;
  background:linear-gradient(180deg,var(--yl-border),rgba(226,222,212,.2));
}
.yl-step{display:flex;gap:26px;padding:22px 0;position:relative}
.yl-step + .yl-step{border-top:1px solid var(--yl-border)}
.yl-step__num{
  flex:0 0 68px;width:68px;position:relative;z-index:1;
  font-family:var(--yl-mono);font-size:30px;font-weight:700;line-height:1.15;
  color:var(--yl-primary);background:var(--yl-bg);
  transition:color .22s var(--yl-ease);
}
.yl-step:hover .yl-step__num{color:var(--yl-accent)}
.yl-step__body{padding-top:2px}
.yl-step__title{font-size:19px;font-weight:600;margin:0 0 8px;line-height:1.5}
.yl-step__text{font-size:16px;color:var(--yl-text-2);margin:0 0 10px}
.yl-step__tip{
  display:inline-flex;align-items:flex-start;gap:8px;
  font-size:13px;color:var(--yl-text-3);line-height:1.8;
}
.yl-step__tip::before{content:"";width:6px;height:6px;margin-top:9px;flex:0 0 auto;background:var(--yl-accent);border-radius:1px}

/* ---------- 提醒渠道 ---------- */
.yl-channel-list{border-top:1px solid var(--yl-border);margin-top:6px}
.yl-channel{padding:22px 0;border-bottom:1px solid var(--yl-border)}
.yl-channel__head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.yl-channel__name{font-size:18px;font-weight:600}
.yl-channel__text{font-size:15.5px;color:var(--yl-text-2);margin:0 0 10px}
.yl-channel__meta{
  font-family:var(--yl-mono);font-size:13px;color:var(--yl-text-3);
  letter-spacing:.02em;
}
.yl-media{border-radius:var(--yl-r-lg);overflow:hidden;border:1px solid var(--yl-border);background:var(--yl-surface-2);box-shadow:var(--yl-sh-1)}
.yl-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.yl-media__cap{font-size:13px;color:var(--yl-text-3);padding:12px 16px;background:var(--yl-surface);border-top:1px solid var(--yl-border)}

/* ---------- 订阅表单 ---------- */
.yl-subscribe__box{
  background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--yl-r-lg);
  padding:38px;box-shadow:var(--yl-sh-1);
}
.yl-subscribe__title{font-size:22px;font-weight:700;margin:0 0 8px}
.yl-subscribe__desc{font-size:15px;color:var(--yl-text-2);margin:0 0 22px;max-width:620px}
.yl-form{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}
.yl-form input[type="email"]{
  height:48px;margin:0;border-radius:var(--yl-r-md);border:1px solid var(--yl-border);
  background:var(--yl-bg);padding:0 16px;font-size:15px;color:var(--yl-text);
  transition:border-color .2s var(--yl-ease),box-shadow .2s var(--yl-ease);
}
.yl-form input[type="email"]::placeholder{color:var(--yl-text-3)}
.yl-form input[type="email"]:focus{
  outline:none;border-color:var(--yl-primary);box-shadow:0 0 0 3px rgba(15,59,52,.12);background:#fff;
}
.yl-form .yl-btn{height:48px;min-height:48px}
.yl-form__note{
  display:flex;align-items:flex-start;gap:9px;margin:14px 0 0;
  font-size:12.5px;color:var(--yl-text-3);line-height:1.75;
}
.yl-form__note input{margin:4px 0 0;flex:0 0 auto;accent-color:var(--yl-primary)}
.yl-form__success{
  display:flex;align-items:center;gap:9px;margin:14px 0 0;
  padding:11px 15px;border:1px solid var(--yl-signal);border-radius:var(--yl-r-md);
  background:rgba(41,211,180,.08);color:var(--yl-primary);font-size:14px;font-weight:600;
}
.yl-form__success[hidden]{display:none}

/* ---------- FAQ ---------- */
.yl-faq{border-top:1px solid var(--yl-border)}
.yl-faq__item{border-bottom:1px solid var(--yl-border)}
.yl-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--yl-text);line-height:1.6;
  transition:color .2s var(--yl-ease);
}
.yl-faq__q:hover{color:var(--yl-primary)}
.yl-faq__icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--yl-accent);
  transition:transform .2s var(--yl-ease);
}
.yl-faq__icon::before,.yl-faq__icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
}
.yl-faq__icon::before{left:0;top:10px;width:22px;height:2px}
.yl-faq__icon::after{left:10px;top:0;width:2px;height:22px}
.yl-faq__item.is-open .yl-faq__icon{transform:rotate(45deg)}
.yl-faq__a{max-height:0;overflow:hidden;transition:max-height .3s var(--yl-ease)}
.yl-faq__a-inner{
  padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--yl-text-2);max-width:760px;
}
.yl-faq__a-inner p{margin:0 0 .8em}

/* ---------- CTA 大区块 ---------- */
.yl-cta{
  position:relative;background:var(--yl-dark);color:var(--yl-invert);
  padding:92px 0;
}
.yl-cta::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--yl-accent),transparent);
}
.yl-cta__title{font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.35;margin:0 0 14px}
.yl-cta__desc{font-size:16px;color:rgba(234,240,238,.78);max-width:620px;margin:0 0 28px}
.yl-cta__actions{display:flex;flex-wrap:wrap;gap:14px}
.yl-cta__card{
  border:1px solid rgba(234,240,238,.16);border-radius:var(--yl-r-lg);
  background:rgba(234,240,238,.05);padding:26px;
}
.yl-cta__card h3{font-size:15px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.02em}
.yl-cta__card ul{display:flex;flex-direction:column;gap:12px}
.yl-cta__card li{font-size:14px;color:rgba(234,240,238,.76);line-height:1.7}
.yl-cta__card li strong{display:block;font-family:var(--yl-mono);color:var(--yl-signal);font-size:13px;letter-spacing:.06em;font-weight:700;margin-bottom:2px}

/* ---------- 页脚 ---------- */
.yl-footer{
  background:var(--yl-primary-active);color:var(--yl-invert);
  padding:70px 0 0;border-top:1px solid rgba(234,240,238,.12);
}
.yl-footer__grid{padding-bottom:44px;border-bottom:1px solid rgba(234,240,238,.12)}
.yl-footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:-.01em}
.yl-footer p{font-size:14px;line-height:1.85;color:rgba(234,240,238,.72);margin:0}
.yl-footer__contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(234,240,238,.72)}
.yl-footer__title{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.yl-footer__list{display:flex;flex-direction:column;gap:11px}
.yl-footer__list a{font-size:14px;color:rgba(234,240,238,.72)}
.yl-footer__list a:hover{color:var(--yl-accent)}
.yl-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0 26px;font-size:13px;color:rgba(234,240,238,.6);
}
.yl-footer .cell{padding-bottom:26px}

/* ---------- 进场动效 ---------- */
.yl-reveal{opacity:0;transform:translateY(24px);transition:opacity .48s var(--yl-ease),transform .48s var(--yl-ease)}
.yl-reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .yl-nav-links,.yl-nav__cta{display:none}
  .yl-burger{display:block}
  .yl-section{padding:66px 0}
  .yl-section__head{margin-bottom:34px}
  .yl-trust{grid-template-columns:repeat(2,1fr)}
  .yl-trust__item{padding:22px 18px 22px 18px}
  .yl-trust__item:nth-child(odd){border-left:0;padding-left:0}
  .yl-trust__item:nth-child(n+3){border-top:1px solid var(--yl-border)}
  .yl-cta{padding:72px 0}
  .yl-cta__card{margin-top:28px}
  .yl-footer .cell{padding-bottom:22px}
  .yl-footer__grid{padding-bottom:24px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .yl-container{padding:0 16px}
  .yl-hero__inner{padding:52px 0 46px}
  .yl-hero__sub{font-size:16px}
  .yl-hero__actions{gap:12px}
  .yl-hero__actions .yl-btn{width:100%}
  .yl-notice__inner{padding:6px 0}
  .yl-section{padding:54px 0}
  .yl-section__title{font-size:23px}
  .yl-step{gap:16px;padding:20px 0}
  .yl-step__num{flex:0 0 48px;font-size:24px}
  .yl-steps::before{left:23px}
  .yl-subscribe__box{padding:24px 20px}
  .yl-form{grid-template-columns:1fr}
  .yl-form .yl-btn{width:100%}
  .yl-cta{padding:58px 0}
  .yl-cta__actions .yl-btn{width:100%}
  .yl-footer{padding-top:52px}
  .yl-footer__bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media screen and (max-width:519px){
  .yl-logo{font-size:17px}
  .yl-trust{grid-template-columns:1fr}
  .yl-trust__item{border-left:0;padding-left:0}
  .yl-trust__item + .yl-trust__item{border-top:1px solid var(--yl-border)}
  .yl-media img{aspect-ratio:16/9}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .yl-reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-hover:#E8481F;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-invert:#EAF0EE;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,29,.05);
  --sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --yl-font:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --yl-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--yl-font);
  font-size:16px;
  line-height:1.85;
  color:var(--yl-text);
  background:var(--yl-bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;background:var(--yl-surface-2);}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--yl-accent);outline-offset:2px;}
.grid-margin-x{margin-left:-15px;margin-right:-15px;}

.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.yl-container{max-width:1280px;}}

.yl-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:var(--yl-text-3);font-weight:500;
}
.yl-eyebrow::before{content:'';width:12px;height:1px;background:var(--yl-accent);display:inline-block;}
.yl-eyebrow--light{color:rgba(234,240,238,.72);}

/* 公告条 */
.yl-notice{background:var(--yl-dark);color:var(--yl-invert);font-size:13px;}
.yl-notice .yl-container{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:4px;padding-bottom:4px;}
.yl-notice__left{display:flex;align-items:center;gap:10px;line-height:1.6;}
.yl-notice__dot{width:7px;height:7px;border-radius:50%;background:var(--yl-signal);flex:none;animation:ylPulse 1.6s ease-in-out infinite;}
.yl-notice__link{color:var(--yl-invert);border-bottom:1px solid rgba(234,240,238,.35);padding-bottom:1px;white-space:nowrap;}
.yl-notice__link:hover{color:var(--yl-accent);border-bottom-color:var(--yl-accent);}
@keyframes ylPulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}

/* 导航 */
.yl-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.9);
  backdrop-filter:saturate(160%) blur(8px);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.yl-header.is-stuck{background:rgba(255,255,255,.92);border-bottom-color:var(--yl-border);box-shadow:var(--sh-1);}
.yl-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease;}
.yl-header.is-stuck .yl-nav{height:64px;}
.yl-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--yl-primary);min-height:44px;}
.yl-logo svg{flex:none;}
.yl-logo span{white-space:nowrap;}
.yl-nav-links{display:flex;align-items:center;gap:26px;}
.yl-nav-links a{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--yl-text-2);
  padding:21px 0;min-height:44px;
}
.yl-nav-links a::after{
  content:'';position:absolute;left:0;bottom:14px;height:2px;width:0;
  background:var(--yl-accent);transition:width .2s ease;
}
.yl-nav-links a:hover{color:var(--yl-primary);}
.yl-nav-links a:hover::after{width:60%;}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:600;}
.yl-nav-links a.is-active::after{width:100%;}
.yl-nav-links a.is-active::before{
  content:'';position:absolute;right:-9px;bottom:13px;width:4px;height:4px;border-radius:50%;
  background:var(--yl-accent);
}
.yl-nav__cta{display:flex;align-items:center;gap:12px;}
.yl-burger{
  display:none;width:44px;height:44px;border:1px solid var(--yl-border);border-radius:var(--r-md);
  background:var(--yl-surface);cursor:pointer;padding:0;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.yl-burger span{display:block;width:18px;height:2px;background:var(--yl-primary);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.yl-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.yl-burger.is-open span:nth-child(2){opacity:0;}
.yl-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.yl-mask{position:fixed;inset:0;background:rgba(11,33,30,.5);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:88;}
.yl-mask.is-open{opacity:1;visibility:visible;}
.yl-drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;background:var(--yl-surface);z-index:90;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.22,.61,.36,1);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--sh-2);overflow-y:auto;
}
.yl-drawer.is-open{transform:translateX(0);}
.yl-drawer__title{font-size:13px;letter-spacing:.14em;color:var(--yl-text-3);margin-bottom:10px;}
.yl-drawer a.yl-drawer__link{
  display:block;padding:13px 0;font-size:15px;color:var(--yl-text);border-bottom:1px solid var(--yl-border);min-height:44px;
}
.yl-drawer a.yl-drawer__link:hover,.yl-drawer a.yl-drawer__link.is-active{color:var(--yl-primary);font-weight:600;}
.yl-drawer__foot{margin-top:auto;padding-top:22px;font-size:13px;color:var(--yl-text-2);line-height:1.9;}

/* 按钮 */
.yl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;text-align:center;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.yl-btn--sm{min-height:40px;padding:0 16px;font-size:14px;}
.yl-btn--primary{background:var(--yl-primary);color:#fff;}
.yl-btn--primary:hover{background:var(--yl-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.yl-btn--primary:active{background:var(--yl-primary-active);transform:translateY(0);}
.yl-btn--accent{background:var(--yl-accent);color:#fff;}
.yl-btn--accent:hover{background:var(--yl-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.yl-btn--accent:active{background:#D63F19;transform:translateY(0);}
.yl-btn--outline{background:transparent;border-color:var(--yl-border);color:var(--yl-text);}
.yl-btn--outline:hover{border-color:var(--yl-primary);color:var(--yl-primary);transform:translateY(-1px);}
.yl-btn--light-outline{background:transparent;border-color:rgba(234,240,238,.4);color:var(--yl-invert);}
.yl-btn--light-outline:hover{border-color:var(--yl-invert);background:rgba(234,240,238,.08);color:#fff;}
.yl-btn--block{width:100%;}
.yl-arrow{display:inline-block;transition:transform .2s ease;}
.yl-btn:hover .yl-arrow{transform:translateX(4px);}

/* 内页 Hero */
.yl-hero{
  position:relative;color:var(--yl-invert);
  background-image:linear-gradient(105deg,rgba(11,33,30,.86) 0%,rgba(11,33,30,.7) 55%,rgba(11,33,30,.6) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:76px 0 68px;
}
.yl-hero__inner{max-width:820px;}
.yl-hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
  color:#fff;margin:16px 0 18px;
}
.yl-hero p{font-size:17px;line-height:1.85;color:rgba(234,240,238,.84);max-width:660px;}
.yl-hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.yl-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(234,240,238,.12);color:var(--yl-invert);border:1px solid rgba(234,240,238,.22);
}
.yl-chip--accent{background:var(--yl-accent);border-color:var(--yl-accent);color:#fff;font-weight:600;}

/* 面包屑 */
.yl-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--yl-text-3);padding:20px 0 0;}
.yl-crumb a:hover{color:var(--yl-primary);text-decoration:underline;}
.yl-crumb__sep{color:var(--yl-border);}
.yl-crumb [aria-current="page"]{color:var(--yl-primary);font-weight:600;}

/* 板块 */
.yl-section{padding:72px 0;}
.yl-section--tight{padding:56px 0;}
.yl-section--surface{background:var(--yl-surface);}
.yl-section__head{margin-bottom:36px;}
.yl-h2{
  position:relative;padding-left:16px;font-size:clamp(23px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;
  margin:12px 0 14px;
}
.yl-h2::before{content:'';position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--yl-accent);}
.yl-h3{font-size:19px;font-weight:600;margin:0 0 10px;}
.yl-lead{font-size:16px;color:var(--yl-text-2);max-width:780px;}
.yl-hr{height:1px;background:var(--yl-border);border:0;margin:0;}

/* 数据条 */
.yl-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--yl-border);border-bottom:1px solid var(--yl-border);
}
.yl-stats__item{padding:26px 22px;border-left:1px solid var(--yl-border);}
.yl-stats__item:first-child{border-left:0;}
.yl-stats__num{font-family:var(--yl-mono);font-size:28px;font-weight:700;color:var(--yl-primary);letter-spacing:.02em;line-height:1.2;}
.yl-stats__txt{font-size:13px;color:var(--yl-text-2);margin-top:6px;line-height:1.7;}

/* 对比表 */
.yl-tablewrap{
  border:1px solid var(--yl-border);border-radius:var(--r-lg);background:var(--yl-surface);
  box-shadow:var(--sh-1);overflow:hidden;
}
.yl-table{width:100%;border-collapse:collapse;min-width:760px;}
.yl-table thead th{
  background:var(--yl-primary);color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;
  padding:16px 18px;text-align:left;vertical-align:middle;
}
.yl-table thead th.is-reco{box-shadow:inset 0 3px 0 var(--yl-accent);background:var(--yl-primary-hover);}
.yl-table tbody th{
  width:170px;text-align:left;font-weight:600;font-size:15px;color:var(--yl-text);
  background:var(--yl-surface-2);padding:18px;border-bottom:1px solid var(--yl-border);vertical-align:top;
}
.yl-table tbody td{
  font-size:15px;color:var(--yl-text-2);padding:18px;border-bottom:1px solid var(--yl-border);vertical-align:top;line-height:1.8;
}
.yl-table tbody td.is-reco{background:var(--yl-accent-soft);color:var(--yl-text);}
.yl-table tbody tr:last-child th,.yl-table tbody tr:last-child td{border-bottom:0;}
.yl-table tbody tr:hover td{background:#FBFAF7;}
.yl-table tbody tr:hover td.is-reco{background:var(--yl-accent-soft);}
.yl-badge{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:var(--r-pill);
  background:var(--yl-accent);color:#fff;font-size:11px;font-weight:600;letter-spacing:.06em;vertical-align:middle;
}
.yl-table__note{margin-top:16px;font-size:13px;color:var(--yl-text-3);}
.yl-scroll-hint{display:none;font-size:13px;color:var(--yl-text-3);margin-bottom:10px;}

/* 标签切换 */
.yl-tabs{margin-top:8px;}
.yl-tabs__nav{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--yl-border);}
.yl-tabs__btn{
  appearance:none;background:transparent;border:0;border-bottom:2px solid transparent;
  padding:13px 18px;min-height:44px;font-size:15px;font-weight:500;color:var(--yl-text-2);cursor:pointer;
  transition:color .2s ease,border-color .2s ease;
}
.yl-tabs__btn:hover{color:var(--yl-primary);}
.yl-tabs__btn[aria-selected="true"]{color:var(--yl-primary);font-weight:700;border-bottom-color:var(--yl-accent);}
.yl-tabs__panel{padding:32px 0 0;display:none;}
.yl-tabs__panel.is-active{display:block;animation:ylFade .4s ease;}
@keyframes ylFade{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.yl-tabs__grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start;}
.yl-tabs__card{
  background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.yl-tabs__card .yl-eyebrow{margin-bottom:10px;}
.yl-tabs__card strong{font-family:var(--yl-mono);font-size:26px;color:var(--yl-primary);display:block;line-height:1.3;}

/* 细线要点列表 */
.yl-linelist{border-top:1px solid var(--yl-border);}
.yl-linelist li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--yl-border);align-items:flex-start;
}
.yl-linelist .yl-num{
  font-family:var(--yl-mono);font-size:15px;font-weight:700;color:var(--yl-accent);letter-spacing:.06em;
  min-width:28px;padding-top:2px;
}
.yl-linelist .yl-txt{font-size:15px;color:var(--yl-text-2);line-height:1.8;}
.yl-linelist .yl-txt b{color:var(--yl-text);font-weight:600;}

/* 图文块 */
.yl-split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.yl-split--rev{grid-template-columns:7fr 5fr;}
.yl-split + .yl-split{margin-top:72px;}
.yl-split__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.yl-split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .45s cubic-bezier(.22,.61,.36,1);}
.yl-split__media:hover img{transform:scale(1.03);}
.yl-split__media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 20px 14px;font-size:13px;color:var(--yl-invert);
  background:linear-gradient(transparent,rgba(11,33,30,.82));
}
.yl-split__body p{color:var(--yl-text-2);font-size:16px;}
.yl-bullets{margin-top:22px;border-top:1px solid var(--yl-border);}
.yl-bullets li{
  position:relative;padding:14px 0 14px 20px;border-bottom:1px solid var(--yl-border);
  font-size:15px;color:var(--yl-text-2);
}
.yl-bullets li::before{
  content:'';position:absolute;left:0;top:23px;width:6px;height:6px;border-radius:2px;background:var(--yl-accent);
}
.yl-bullets li b{color:var(--yl-text);font-weight:600;}

/* FAQ */
.yl-faq{border-top:1px solid var(--yl-border);}
.yl-faq__item{border-bottom:1px solid var(--yl-border);}
.yl-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:20px 0;min-height:44px;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--yl-text);transition:color .2s ease;
}
.yl-faq__q:hover{color:var(--yl-primary);}
.yl-faq__icon{
  flex:none;width:22px;height:22px;position:relative;transition:transform .2s ease;
}
.yl-faq__icon::before,.yl-faq__icon::after{
  content:'';position:absolute;background:var(--yl-accent);border-radius:2px;
}
.yl-faq__icon::before{left:0;top:10px;width:22px;height:2px;}
.yl-faq__icon::after{left:10px;top:0;width:2px;height:22px;}
.yl-faq__item.is-open .yl-faq__icon{transform:rotate(45deg);}
.yl-faq__a{display:none;padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--yl-text-2);max-width:800px;}
.yl-faq__item.is-open .yl-faq__a{display:block;}

/* CTA */
.yl-cta{
  position:relative;background:var(--yl-dark);color:var(--yl-invert);padding:88px 0;
}
.yl-cta::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,90,54,0),var(--yl-accent),rgba(255,90,54,0));
}
.yl-cta__grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:center;}
.yl-cta h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;letter-spacing:-.01em;margin-bottom:14px;line-height:1.28;}
.yl-cta p{color:rgba(234,240,238,.78);font-size:16px;max-width:640px;}
.yl-cta__btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.yl-cta__card{
  background:rgba(234,240,238,.06);border:1px solid rgba(234,240,238,.16);border-radius:var(--r-lg);padding:26px;
}
.yl-cta__card h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.yl-cta__card li{font-size:14px;color:rgba(234,240,238,.76);padding:8px 0;border-bottom:1px solid rgba(234,240,238,.12);}
.yl-cta__card li:last-child{border-bottom:0;}
.yl-cta__card .yl-mono{font-family:var(--yl-mono);color:var(--yl-signal);}

/* 页脚 */
.yl-footer{background:var(--yl-dark);color:var(--yl-invert);padding:72px 0 0;font-size:14px;}
.yl-footer__grid{padding-bottom:56px;}
.yl-footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;}
.yl-footer p{color:rgba(234,240,238,.72);line-height:1.85;}
.yl-footer__contact li{color:rgba(234,240,238,.72);padding:5px 0;font-size:14px;}
.yl-footer__title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.yl-footer__list li{margin-bottom:11px;}
.yl-footer__list a{color:rgba(234,240,238,.72);}
.yl-footer__list a:hover{color:var(--yl-accent);}
.yl-footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(234,240,238,.12);padding:22px 0 28px;font-size:13px;color:rgba(234,240,238,.6);
}

/* 入场动效 */
.yl-reveal{opacity:0;transform:translateY(24px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.yl-reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1024px){
  .yl-nav-links{display:none;}
  .yl-nav__cta .yl-btn{display:none;}
  .yl-burger{display:flex;}
  .yl-hero{padding:60px 0 56px;}
  .yl-section{padding:56px 0;}
  .yl-split,.yl-split--rev{grid-template-columns:1fr;gap:28px;}
  .yl-split + .yl-split{margin-top:52px;}
  .yl-tabs__grid{grid-template-columns:1fr;gap:28px;}
  .yl-cta__grid{grid-template-columns:1fr;gap:32px;}
  .yl-cta{padding:66px 0;}
  .yl-stats{grid-template-columns:repeat(2,1fr);}
  .yl-stats__item:nth-child(3){border-left:0;}
  .yl-stats__item:nth-child(n+3){border-top:1px solid var(--yl-border);}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .yl-notice__link{display:none;}
  .yl-nav{height:56px;}
  .yl-header.is-stuck .yl-nav{height:56px;}
  .yl-logo{font-size:15.5px;}
  .yl-nav-links a{padding:18px 0;}
  .yl-hero{padding:48px 0 44px;}
  .yl-hero p{font-size:16px;}
  .yl-section{padding:48px 0;}
  .yl-section--tight{padding:40px 0;}
  .yl-scroll-hint{display:block;}
  .yl-tablewrap{border:0;box-shadow:none;background:transparent;border-radius:0;overflow:visible;}
  .yl-table{min-width:0;width:100%;}
  .yl-table thead{display:none;}
  .yl-table tbody tr{
    display:block;background:var(--yl-surface);border:1px solid var(--yl-border);
    border-radius:var(--r-md);margin-bottom:16px;box-shadow:var(--sh-1);overflow:hidden;
  }
  .yl-table tbody th{
    display:block;width:auto;background:var(--yl-surface-2);border-bottom:1px solid var(--yl-border);
    font-size:15px;padding:13px 16px;
  }
  .yl-table tbody td{
    display:block;border-bottom:1px solid var(--yl-border);padding:12px 16px;font-size:15px;
  }
  .yl-table tbody td::before{
    content:attr(data-label);display:block;font-size:12px;letter-spacing:.08em;
    color:var(--yl-text-3);margin-bottom:4px;
  }
  .yl-table tbody tr:last-child th,.yl-table tbody tr:last-child td{border-bottom:1px solid var(--yl-border);}
  .yl-table tbody tr td:last-child{border-bottom:0;}
  .yl-table tbody tr:hover td{background:transparent;}
  .yl-table tbody td.is-reco{background:var(--yl-accent-soft);}
  .yl-tabs__btn{padding:12px 14px;font-size:14px;}
  .yl-cta{padding:56px 0;}
  .yl-cta__btns .yl-btn{width:100%;}
  .yl-footer{padding-top:56px;}
  .yl-footer__bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .yl-container{padding:0 16px;}
  .yl-stats{grid-template-columns:1fr;}
  .yl-stats__item{border-left:0;border-top:1px solid var(--yl-border);padding:20px 0;}
  .yl-stats__item:first-child{border-top:0;}
  .yl-faq__q{font-size:16px;}
  .yl-drawer{width:86%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .yl-reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --yl-primary:#0F3B34;
  --yl-primary-hover:#155A4E;
  --yl-primary-active:#0A2A26;
  --yl-dark:#0B211E;
  --yl-accent:#FF5A36;
  --yl-accent-soft:#FFE7DF;
  --yl-signal:#29D3B4;
  --yl-bg:#F6F4EF;
  --yl-surface:#FFFFFF;
  --yl-surface-2:#EDEAE3;
  --yl-border:#E2DED4;
  --yl-text:#14201E;
  --yl-text-2:#5A6663;
  --yl-text-3:#8A9490;
  --yl-invert:#EAF0EE;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,29,.05);
  --sh-2:0 10px 30px -12px rgba(16,32,29,.18);
  --yl-container:1200px;
  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'DIN Alternate','Oswald','Roboto Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--yl-bg);
  color:var(--yl-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--yl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--yl-accent)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--yl-accent);
  outline-offset:2px;
  border-radius:4px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
.yl-container{width:100%;max-width:var(--yl-container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){:root{--yl-container:1280px}}

/* ---------- 通用按钮 ---------- */
.yl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--r-md);border:1px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.yl-btn .yl-arrow{transition:transform .22s ease;font-family:var(--font-mono)}
.yl-btn:hover .yl-arrow{transform:translateX(4px)}
.yl-btn--primary{background:var(--yl-accent);color:#fff}
.yl-btn--primary:hover{background:#E44A28;color:#fff;transform:translateY(-1px)}
.yl-btn--primary:active{background:#C93F20}
.yl-btn--ghost{background:transparent;color:var(--yl-primary);border-color:var(--yl-border)}
.yl-btn--ghost:hover{border-color:var(--yl-primary);color:var(--yl-primary);background:var(--yl-surface)}
.yl-btn--invert{background:transparent;color:var(--yl-invert);border-color:rgba(234,240,238,.42)}
.yl-btn--invert:hover{background:rgba(234,240,238,.1);color:#fff;border-color:rgba(234,240,238,.7)}
.yl-btn--sm{min-height:40px;padding:0 18px;font-size:14px}

/* ---------- 公告条 ---------- */
.yl-notice{background:var(--yl-dark);color:var(--yl-invert);font-size:13px;line-height:34px}
.yl-notice .yl-container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.yl-notice__left{display:flex;align-items:center;gap:10px;min-width:0}
.yl-notice__left i{color:var(--yl-signal);font-size:12px}
.yl-notice__left span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.yl-notice a{color:var(--yl-invert);border-bottom:1px solid rgba(234,240,238,.4);font-size:13px}
.yl-notice a:hover{color:var(--yl-accent);border-color:var(--yl-accent)}

/* ---------- 导航 ---------- */
.yl-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:saturate(160%) blur(8px);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.yl-header.is-scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--yl-border);box-shadow:var(--sh-1)}
.yl-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .3s ease}
.yl-header.is-scrolled .yl-nav{height:64px}
.yl-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--yl-primary);letter-spacing:-.01em}
.yl-logo:hover{color:var(--yl-primary)}
.yl-logo svg{flex:none;border-radius:10px}
.yl-nav-links{display:flex;align-items:center;gap:6px;margin:0}
.yl-nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--yl-text);
}
.yl-nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  background:var(--yl-accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.yl-nav-links a:hover{color:var(--yl-primary)}
.yl-nav-links a:hover::after{transform:scaleX(.6)}
.yl-nav-links a.is-active{color:var(--yl-primary);font-weight:700}
.yl-nav-links a.is-active::after{transform:scaleX(1)}
.yl-nav-links a.is-active::before{
  content:"";position:absolute;left:6px;bottom:13px;width:4px;height:4px;border-radius:50%;
  background:var(--yl-accent);
}
.yl-nav__cta{display:flex;align-items:center;gap:12px}
.yl-burger{
  display:none;width:44px;height:44px;padding:0;border:1px solid var(--yl-border);
  border-radius:var(--r-sm);background:var(--yl-surface);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.yl-burger span{display:block;width:18px;height:2px;background:var(--yl-primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.yl-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.yl-burger.is-open span:nth-child(2){opacity:0}
.yl-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.yl-drawer{
  position:fixed;top:0;right:0;width:280px;max-width:86vw;height:100%;
  background:var(--yl-surface);z-index:90;padding:28px 22px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;
}
.yl-drawer.is-open{transform:translateX(0)}
.yl-drawer__title{font-size:12px;letter-spacing:.18em;color:var(--yl-text-3);margin-bottom:14px}
.yl-drawer__list li+li{border-top:1px solid var(--yl-border)}
.yl-drawer__list a{display:block;padding:14px 0;font-size:15px;font-weight:500;color:var(--yl-text)}
.yl-drawer__list a.is-active{color:var(--yl-primary);font-weight:700}
.yl-drawer .yl-btn{width:100%;margin-top:22px}
.yl-drawer__contact{margin-top:26px;font-size:13px;color:var(--yl-text-2);line-height:2}
.yl-mask{
  position:fixed;inset:0;background:rgba(11,33,30,.5);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.yl-mask.is-open{opacity:1;visibility:visible}

@media (max-width:1023px){
  .yl-nav-links,.yl-nav__cta{display:none}
  .yl-burger{display:flex}
}

/* ---------- Hero ---------- */
.yl-hero{
  position:relative;
  background-image:linear-gradient(180deg,rgba(11,33,30,.78),rgba(11,33,30,.7)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:var(--yl-invert);
  padding:84px 0 72px;
  overflow:hidden;
}
.yl-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--yl-accent),rgba(255,90,54,0) 70%);
}
.yl-hero .yl-container{position:relative;z-index:2}
.yl-hero__inner{max-width:820px}
.yl-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:var(--yl-text-3);text-transform:uppercase;margin-bottom:18px;
}
.yl-eyebrow::before{content:"";width:12px;height:1px;background:currentColor;display:inline-block}
.yl-hero .yl-eyebrow{color:rgba(234,240,238,.72)}
.yl-hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.14;letter-spacing:-.02em;margin-bottom:18px;
}
.yl-hero h1 em{font-style:normal;color:var(--yl-signal)}
.yl-hero__sub{font-size:17px;line-height:1.85;color:rgba(234,240,238,.82);max-width:620px;margin-bottom:30px}
.yl-hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.yl-hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.yl-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(234,240,238,.1);border:1px solid rgba(234,240,238,.22);
  font-size:13px;color:var(--yl-invert);
}
.yl-tag i{font-size:11px;color:var(--yl-signal)}

/* ---------- 面包屑 ---------- */
.yl-crumb{padding:22px 0 4px;font-size:13px;color:var(--yl-text-3)}
.yl-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.yl-crumb li{display:flex;align-items:center;gap:8px}
.yl-crumb li+li::before{content:"·";color:var(--yl-text-3)}
.yl-crumb a{color:var(--yl-text-3)}
.yl-crumb a:hover{color:var(--yl-primary);text-decoration:underline}
.yl-crumb .is-current{color:var(--yl-primary);font-weight:600}

/* ---------- 板块通用 ---------- */
.yl-section{padding:78px 0}
.yl-section--tight{padding:56px 0}
.yl-section--surface{background:var(--yl-surface);border-top:1px solid var(--yl-border);border-bottom:1px solid var(--yl-border)}
.yl-sec-head{
  position:relative;padding-top:22px;border-top:1px solid var(--yl-border);
  margin-bottom:40px;max-width:760px;
}
.yl-sec-head::before{
  content:"";position:absolute;top:22px;left:0;width:4px;height:18px;
  background:var(--yl-accent);border-radius:2px;
}
.yl-sec-head h2{font-size:clamp(24px,2.6vw,32px);padding-left:18px;margin-bottom:12px}
.yl-sec-head p{padding-left:18px;color:var(--yl-text-2);font-size:16px;margin:0}
.yl-sec-head--invert{border-top-color:rgba(234,240,238,.18)}
.yl-sec-head--invert h2{color:#fff}
.yl-sec-head--invert p{color:rgba(234,240,238,.75)}

/* ---------- 数据条 ---------- */
.yl-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--yl-border);border-bottom:1px solid var(--yl-border);
}
.yl-stats__item{padding:26px 20px;border-left:1px solid var(--yl-border)}
.yl-stats__item:first-child{border-left:0}
.yl-stats__num{font-family:var(--font-mono);font-size:28px;font-weight:700;color:var(--yl-primary);letter-spacing:-.02em;line-height:1.2}
.yl-stats__label{font-size:13px;color:var(--yl-text-2);margin-top:6px}
@media (max-width:767px){
  .yl-stats{grid-template-columns:repeat(2,1fr)}
  .yl-stats__item{border-top:1px solid var(--yl-border)}
  .yl-stats__item:nth-child(-n+2){border-top:0}
  .yl-stats__item:nth-child(odd){border-left:0}
}

/* ---------- 时间线 ---------- */
.yl-timeline{margin-top:8px}
.yl-timeline__item{
  position:relative;display:grid;grid-template-columns:132px 1fr;gap:32px;
  padding-bottom:38px;
}
.yl-timeline__item::before{
  content:"";position:absolute;left:148px;top:14px;bottom:-8px;width:1px;background:var(--yl-border);
}
.yl-timeline__item:last-child{padding-bottom:0}
.yl-timeline__item:last-child::before{display:none}
.yl-timeline__time{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;
  color:var(--yl-text-2);padding-top:4px;text-align:right;
}
.yl-timeline__body{position:relative}
.yl-timeline__body::before{
  content:"";position:absolute;left:-20px;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--yl-accent);box-shadow:0 0 0 4px var(--yl-accent-soft);
}
.yl-timeline__body h3{font-size:19px;font-weight:600;margin-bottom:8px}
.yl-timeline__body p{color:var(--yl-text-2);font-size:15.5px;margin:0;max-width:640px}
.yl-timeline__meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:13px;color:var(--yl-text-3);
}
.yl-timeline__meta i{color:var(--yl-signal);font-size:11px}
@media (max-width:767px){
  .yl-timeline__item{grid-template-columns:1fr;gap:12px;padding-left:22px;padding-bottom:32px}
  .yl-timeline__item::before{left:5px;top:10px}
  .yl-timeline__time{text-align:left;padding-top:0}
  .yl-timeline__body::before{left:-22px;top:7px}
}

/* ---------- 图文块 ---------- */
.yl-split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.yl-split__media{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--yl-surface-2);box-shadow:var(--sh-2)}
.yl-split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.yl-split__badge{
  position:absolute;top:16px;left:16px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--yl-primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.yl-split__body h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:16px}
.yl-split__body p{color:var(--yl-text-2);font-size:16px}
.yl-checks{margin-top:22px;border-top:1px solid var(--yl-border)}
.yl-checks li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--yl-border);
}
.yl-checks .yl-checks__num{
  font-family:var(--font-mono);font-size:14px;color:var(--yl-accent);font-weight:700;flex:none;padding-top:3px;
}
.yl-checks strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.yl-checks span{font-size:14.5px;color:var(--yl-text-2)}
@media (max-width:1023px){
  .yl-split{grid-template-columns:1fr;gap:32px}
}

/* ---------- FAQ ---------- */
.yl-faq{max-width:860px}
.yl-faq__item{border-top:1px solid var(--yl-border)}
.yl-faq__item:last-child{border-bottom:1px solid var(--yl-border)}
.yl-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--yl-text);line-height:1.6;
}
.yl-faq__q:hover{color:var(--yl-primary)}
.yl-faq__icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--yl-border);color:var(--yl-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.yl-faq__q[aria-expanded="true"] .yl-faq__icon{transform:rotate(45deg);background:var(--yl-accent);color:#fff;border-color:var(--yl-accent)}
.yl-faq__a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.yl-faq__a-inner{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--yl-text-2);max-width:700px}

/* ---------- 订阅表单 ---------- */
.yl-subscribe{
  background:var(--yl-surface);border:1px solid var(--yl-border);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-1);
}
.yl-subscribe h2{font-size:24px;margin-bottom:10px}
.yl-subscribe > p{color:var(--yl-text-2);font-size:15.5px;margin-bottom:24px}
.yl-form-row{display:flex;gap:12px;flex-wrap:wrap}
.yl-form-row input[type="email"]{
  flex:1 1 260px;min-height:48px;padding:0 16px;
  border:1px solid var(--yl-border);border-radius:var(--r-md);
  background:var(--yl-bg);font-size:15px;color:var(--yl-text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.yl-form-row input[type="email"]::placeholder{color:var(--yl-text-3)}
.yl-form-row input[type="email"]:focus{
  outline:none;background:#fff;border-color:var(--yl-primary);
  box-shadow:0 0 0 3px rgba(15,59,52,.14);
}
.yl-form-row .yl-btn{min-height:48px;flex:0 0 auto}
.yl-form-note{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:12.5px;color:var(--yl-text-3);line-height:1.7}
.yl-form-note input{margin-top:3px}
.yl-form-state{
  display:none;align-items:center;gap:10px;margin-top:16px;
  padding:12px 16px;border-radius:var(--r-md);
  border:1px solid var(--yl-signal);background:rgba(41,211,180,.08);
  font-size:14px;color:var(--yl-primary);
}
.yl-form-state.is-visible{display:flex}
.yl-form-state button{
  background:none;border:0;color:var(--yl-text-2);font-size:13px;text-decoration:underline;padding:0;
}

/* ---------- CTA 大区块 ---------- */
.yl-cta{
  position:relative;background:var(--yl-dark);color:var(--yl-invert);padding:92px 0;overflow:hidden;
}
.yl-cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,rgba(255,90,54,0),var(--yl-accent) 40%,rgba(255,90,54,0));
}
.yl-cta__grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:center}
.yl-cta h2{font-size:clamp(26px,3vw,38px);color:#fff;margin-bottom:16px;letter-spacing:-.02em}
.yl-cta p{color:rgba(234,240,238,.76);font-size:16.5px;max-width:560px}
.yl-cta__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.yl-cta__card{
  background:rgba(234,240,238,.06);border:1px solid rgba(234,240,238,.16);
  border-radius:var(--r-lg);padding:26px;
}
.yl-cta__card h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;letter-spacing:.04em}
.yl-cta__card ul li{
  display:flex;gap:12px;font-size:14px;color:rgba(234,240,238,.76);
  padding:9px 0;border-bottom:1px solid rgba(234,240,238,.1);
}
.yl-cta__card ul li:last-child{border-bottom:0}
.yl-cta__card i{color:var(--yl-signal);font-size:12px;padding-top:5px}
@media (max-width:1023px){
  .yl-cta__grid{grid-template-columns:1fr;gap:32px}
  .yl-cta{padding:72px 0}
}

/* ---------- 页脚 ---------- */
.yl-footer{background:var(--yl-dark);color:var(--yl-invert);padding:70px 0 0;font-size:14px}
.yl-footer__grid{padding-bottom:48px}
.yl-footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:14px}
.yl-footer p{color:rgba(234,240,238,.72);line-height:1.85;max-width:340px}
.yl-footer__contact li{color:rgba(234,240,238,.72);line-height:2}
.yl-footer__title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.yl-footer__list li{margin-bottom:11px}
.yl-footer__list a{color:rgba(234,240,238,.72)}
.yl-footer__list a:hover{color:var(--yl-accent)}
.yl-footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid rgba(234,240,238,.12);
  font-size:13px;color:rgba(234,240,238,.6);
}

/* ---------- 进场动效 ---------- */
.yl-reveal{opacity:0;transform:translateY(24px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.yl-reveal.is-in{opacity:1;transform:none}

@media (max-width:767px){
  .yl-container{padding:0 18px}
  .yl-section{padding:56px 0}
  .yl-hero{padding:60px 0 54px}
  .yl-hero__actions .yl-btn{width:100%}
  .yl-subscribe{padding:26px 20px}
  .yl-form-row .yl-btn{width:100%}
  .yl-notice .yl-container{justify-content:flex-start}
  .yl-notice__right{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .yl-reveal{opacity:1;transform:none}
}