.youkefu-v3{
  --ykf-blue:#4c64fe;
  --ykf-ink:#31415f;
  --ykf-copy:#69748a;
  --ykf-muted:#adb3bf;
  --ykf-line:#d8dce6;
  --ykf-surface:#f7f9fb;
  --ykf-warm:#f3a53f;
  scroll-behavior:smooth;
}
.youkefu-v3 body{overflow-x:hidden;background:#fff;color:var(--ykf-ink)}
.youkefu-v3 main{overflow:clip}
.youkefu-v3 h1,.youkefu-v3 h2,.youkefu-v3 h3,.youkefu-v3 p{color:inherit}
.youkefu-v3 a{text-decoration:none}
.youkefu-v3 img{display:block;max-width:100%;height:auto}
.youkefu-v3 .btn{border-radius:6px}

.ykf-hero{position:relative;min-height:760px;padding-top:72px;overflow:hidden;background:#fff}
.ykf-hero::before{position:absolute;z-index:2;inset:0;content:"";pointer-events:none;background:linear-gradient(90deg,#fff 0 36%,rgba(255,255,255,.94) 45%,rgba(255,255,255,.5) 60%,transparent 77%)}
.ykf-hero-media{position:absolute;z-index:1;inset:0 0 0 38%;overflow:hidden}
.ykf-hero-media picture,.ykf-hero-media img{width:100%;height:100%}
.ykf-hero-media img{object-fit:cover;object-position:center}
.ykf-hero-media>div{position:absolute;inset:0;background:linear-gradient(0deg,rgba(255,255,255,.82),transparent 28%)}
.ykf-hero-inner{position:relative;z-index:3;min-height:688px;display:flex;align-items:center}
.ykf-breadcrumb{position:absolute;top:28px;left:0;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--ykf-copy)}
.ykf-breadcrumb a{color:inherit}.ykf-breadcrumb b{color:var(--ykf-ink);font-weight:650}
.ykf-hero-copy{width:min(52%,690px);padding:88px 0 72px}
.ykf-lockup{display:flex;align-items:center;gap:10px;margin-bottom:22px;font-size:24px;font-weight:680;color:var(--ykf-ink)}
.ykf-lockup i{font-style:normal;color:var(--ykf-blue)}
.ykf-lockup strong{color:var(--ykf-blue)}
.ykf-hero h1{margin:0;font-size:clamp(54px,4.6vw,68px);font-weight:680;line-height:1.07;letter-spacing:-.055em;color:var(--ykf-ink)}
.ykf-hero h1 span{display:block;white-space:nowrap}
.ykf-hero-copy>p{max-width:650px;margin:26px 0 0;font-size:16px;line-height:1.82;color:var(--ykf-copy)}
.ykf-actions{display:flex;align-items:center;gap:22px;margin-top:32px}
.ykf-actions>a:not(.btn){display:inline-flex;align-items:center;gap:7px;color:var(--ykf-ink);font-size:14px;font-weight:680}
.ykf-actions>a:not(.btn):hover{color:var(--ykf-blue)}
.ykf-hero-caption{position:absolute;z-index:3;right:24px;bottom:18px;color:rgba(49,65,95,.62);font-size:11px}
.ykf-hero-products{position:relative;z-index:4;border-top:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line);background:rgba(255,255,255,.96)}
.ykf-hero-products .container{display:grid;grid-template-columns:repeat(3,1fr)}
.ykf-hero-products a{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:27px 30px;border-right:1px solid var(--ykf-line);color:var(--ykf-ink)}
.ykf-hero-products a:first-child{border-left:1px solid var(--ykf-line)}
.ykf-hero-products a>span{padding-top:4px;color:var(--ykf-blue);font-size:11px;font-weight:800}
.ykf-hero-products b{font-size:17px}.ykf-hero-products p{margin:6px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.55}
.ykf-hero-products a:hover{background:var(--ykf-surface)}

.ykf-family{position:sticky;z-index:40;top:72px;border-bottom:1px solid var(--ykf-line);background:rgba(255,255,255,.96);box-shadow:0 10px 26px rgba(49,65,95,.05);backdrop-filter:blur(16px)}
.ykf-family .container{min-height:78px;display:grid;grid-template-columns:170px 1fr 92px;align-items:stretch}
.ykf-family-main{display:grid;align-content:center;padding-right:22px;border-right:1px solid var(--ykf-line);color:var(--ykf-ink)}
.ykf-family-main span{font-size:10px;color:var(--ykf-blue);font-weight:800}.ykf-family-main b{font-size:17px;line-height:1.2}.ykf-family-main small{font-size:10px;color:var(--ykf-copy)}
.ykf-family-links{display:grid;grid-template-columns:1.2fr .95fr .95fr;min-width:0}
.ykf-family-links>div{min-width:0;padding:14px 18px;border-right:1px solid var(--ykf-line)}
.ykf-family-links>div>span{display:block;margin-bottom:7px;color:var(--ykf-copy);font-size:10px;font-weight:750}
.ykf-family-links a{display:inline-block;margin-right:10px;color:var(--ykf-ink);font-size:11px;line-height:1.5;white-space:nowrap}
.ykf-family-links a:hover,.ykf-family-links a.is-active{color:var(--ykf-blue)}
.ykf-family-cta{display:grid;place-items:center;color:var(--ykf-blue);font-size:12px;font-weight:750}
.ykf-family-toggle{display:none}

.ykf-section{padding:clamp(92px,8vw,126px) 0;scroll-margin-top:150px}
.ykf-subsection{padding-top:clamp(92px,8vw,126px);scroll-margin-top:150px}
.ykf-head{display:grid;grid-template-columns:190px minmax(0,1fr);gap:70px;align-items:start;margin-bottom:50px}
.ykf-head>span{padding-top:9px;color:var(--ykf-blue);font-size:13px;font-weight:800}
.ykf-head h2{max-width:900px;margin:0;color:var(--ykf-ink);font-size:clamp(43px,4vw,52px);font-weight:670;line-height:1.12;letter-spacing:-.045em}
@media(min-width:1366px){.ykf-head h2.ykf-h2-nowrap{max-width:none;white-space:nowrap}}
.ykf-head p{max-width:820px;margin:20px 0 0;color:var(--ykf-copy);font-size:15px;line-height:1.82}
.ykf-product-title{max-width:970px;margin:0 auto 70px;text-align:center}
.ykf-product-title>span{display:inline-flex;padding:7px 12px;border:1px solid rgba(76,100,254,.28);border-radius:99px;color:var(--ykf-blue);font-size:12px;font-weight:800}
.ykf-product-title h2{margin:22px 0 20px;font-size:clamp(46px,4.4vw,58px);font-weight:680;line-height:1.1;letter-spacing:-.05em}
.ykf-product-title>p{max-width:820px;margin:0 auto;color:var(--ykf-copy);font-size:16px;line-height:1.82}
.ykf-product-title>div{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:26px}
.ykf-product-title>div b{padding:8px 12px;border-radius:4px;background:#eef1ff;color:#4057e7;font-size:12px;font-weight:720}
.ykf-ui-picture{display:block}.ykf-ui-picture img{width:100%}

.ykf-overview{background:var(--ykf-surface)}
.ykf-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ykf-product-card{min-width:0;border:1px solid var(--ykf-line);background:#fff}
.ykf-product-card>a{height:100%;display:grid;grid-template-rows:210px 1fr;color:var(--ykf-ink)}
.ykf-product-image{display:flex;align-items:center;justify-content:center;overflow:hidden;padding:18px;background:#edf1f7}
.ykf-product-image picture{width:100%}.ykf-product-image img{width:100%;height:174px;object-fit:contain;background:#fff}
.ykf-product-copy{display:flex;flex-direction:column;padding:28px}
.ykf-product-copy>span{color:var(--ykf-blue);font-size:12px;font-weight:800}
.ykf-product-copy h3{margin:14px 0 14px;font-size:24px;line-height:1.32;letter-spacing:-.025em}
.ykf-product-copy p{margin:0;color:var(--ykf-copy);font-size:14px;line-height:1.76}
.ykf-product-copy ul{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0;padding:0;list-style:none}
.ykf-product-copy li{padding:6px 9px;background:var(--ykf-surface);color:var(--ykf-copy);font-size:11px}
.ykf-product-copy>b{display:flex;align-items:center;gap:7px;margin-top:auto;color:var(--ykf-blue);font-size:13px}
.ykf-product-card:hover{border-color:rgba(76,100,254,.55);box-shadow:0 20px 50px rgba(49,65,95,.08)}
.ykf-loop-board{margin-top:76px;border-top:2px solid var(--ykf-ink)}
.ykf-loop-board>header{display:grid;grid-template-columns:190px 1fr;gap:70px;padding:28px 0 30px;border-bottom:1px solid var(--ykf-line)}
.ykf-loop-board header span{color:var(--ykf-blue);font-size:12px;font-weight:800}.ykf-loop-board header h3{margin:0;font-size:27px;line-height:1.35}
.ykf-loop-board article{display:grid;grid-template-columns:70px 250px 1fr;gap:28px;align-items:center;padding:24px 0;border-bottom:1px solid var(--ykf-line)}
.ykf-loop-board article>span{color:var(--ykf-muted);font-size:22px;font-weight:350}.ykf-loop-board article>b{font-size:16px}
.ykf-loop-board ol{display:flex;align-items:center;margin:0;padding:0;list-style:none}
.ykf-loop-board li{position:relative;flex:1;padding-right:28px;color:var(--ykf-copy);font-size:12px;white-space:nowrap}
.ykf-loop-board li:not(:last-child)::after{position:absolute;right:9px;content:"→";color:var(--ykf-blue)}

.ykf-maintenance{background:#fff}
.ykf-service-flow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ykf-line);border-left:1px solid var(--ykf-line)}
.ykf-service-flow article{min-height:150px;padding:24px;border-right:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line)}
.ykf-service-flow span{display:block;color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-service-flow b{display:block;margin-top:20px;font-size:16px}.ykf-service-flow p{margin:8px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.65}
.ykf-phone-gallery{display:grid;grid-template-columns:1.18fr .82fr;gap:20px;padding:20px;background:#eef2f8;border:1px solid var(--ykf-line)}
.ykf-phone-main,.ykf-phone-side>div{display:grid;align-content:start;overflow:hidden;background:#fff;border:1px solid #dfe3ec}
.ykf-phone-main>b,.ykf-phone-side b{padding:15px 17px;border-top:1px solid #e1e5ed;font-size:13px}
.ykf-phone-side{display:grid;gap:20px}.ykf-phone-main img{aspect-ratio:16/10;object-fit:cover}.ykf-phone-side img{aspect-ratio:9/7;object-fit:cover}
.ykf-feature-lines{display:grid;grid-template-columns:repeat(2,1fr);margin-top:42px;border-top:1px solid var(--ykf-line)}
.ykf-feature-lines article{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:26px 24px;border-bottom:1px solid var(--ykf-line)}
.ykf-feature-lines article:nth-child(odd){border-right:1px solid var(--ykf-line)}
.ykf-feature-lines article>span{padding-top:3px;color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-feature-lines b{font-size:16px}.ykf-feature-lines p{margin:7px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.65}
.ykf-repair-proof{display:grid;grid-template-columns:1.35fr .65fr;gap:22px;align-items:start}
.ykf-figure{margin:0;border:1px solid var(--ykf-line);background:#fff;box-shadow:0 20px 50px rgba(49,65,95,.07)}
.ykf-figure-media{display:flex;align-items:center;justify-content:center;min-height:180px;padding:clamp(16px,2.2vw,28px);overflow:hidden;background:#eef2f8}
.ykf-figure-media img{border:1px solid #dfe3ec;background:#fff;box-shadow:0 10px 28px rgba(49,65,95,.06)}
.ykf-figure figcaption{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:18px 22px;border-top:1px solid var(--ykf-line)}
.ykf-figure figcaption>span{padding-top:2px;color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-figure figcaption b{font-size:14px}.ykf-figure figcaption p{margin:5px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.6}
.ykf-repair-proof>div:last-child .ykf-figure-media{min-height:420px}.ykf-repair-proof>div:last-child img{max-height:540px;object-fit:contain}
.ykf-role-flow{display:grid;grid-template-columns:repeat(4,1fr);margin:36px 0 0;padding:0;border-top:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line);list-style:none}
.ykf-role-flow li{padding:22px;border-right:1px solid var(--ykf-line)}.ykf-role-flow li:last-child{border-right:0}.ykf-role-flow span{display:block;color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-role-flow b{display:block;margin-top:8px;font-size:13px;line-height:1.55}
.ykf-settlement{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:center;margin-top:110px;padding:70px;background:var(--ykf-surface);border-left:4px solid var(--ykf-blue)}
.ykf-settlement-copy>span{color:var(--ykf-blue);font-size:13px;font-weight:800}.ykf-settlement-copy h2{margin:16px 0 20px;font-size:42px;line-height:1.15;letter-spacing:-.04em}.ykf-settlement-copy p{margin:0;color:var(--ykf-copy);font-size:15px;line-height:1.8}.ykf-settlement-copy small{display:block;margin-top:18px;padding-left:14px;border-left:2px solid var(--ykf-line);color:var(--ykf-copy);font-size:13px;line-height:1.7}.ykf-settlement-copy a{display:inline-flex;align-items:center;gap:7px;margin-top:24px;color:var(--ykf-blue);font-size:14px;font-weight:750}
.ykf-settlement>ol{margin:0;padding:0;border-top:1px solid var(--ykf-line);list-style:none}.ykf-settlement>ol li{display:grid;grid-template-columns:44px 155px 1fr;gap:16px;align-items:center;padding:20px 0;border-bottom:1px solid var(--ykf-line)}.ykf-settlement>ol span{color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-settlement>ol b{font-size:15px}.ykf-settlement>ol p{margin:0;color:var(--ykf-copy);font-size:12px;line-height:1.55}

.ykf-satisfaction{background:var(--ykf-surface)}
.ykf-journey{padding:32px;border:1px solid var(--ykf-line);background:#fff}
.ykf-journey>span{color:var(--ykf-blue);font-size:12px;font-weight:800}.ykf-journey ol{position:relative;display:grid;grid-template-columns:repeat(7,1fr);gap:0;margin:28px 0 0;padding:0;list-style:none}.ykf-journey ol::before{position:absolute;top:16px;right:6%;left:6%;height:1px;content:"";background:var(--ykf-line)}
.ykf-journey li{position:relative;display:grid;justify-items:center;gap:8px}.ykf-journey i{z-index:1;width:32px;height:32px;display:grid;place-items:center;border:1px solid rgba(76,100,254,.38);border-radius:50%;background:#fff;color:var(--ykf-blue);font-size:10px;font-style:normal;font-weight:800}.ykf-journey b{font-size:13px}.ykf-journey p{margin:24px 0 0;text-align:center;color:var(--ykf-copy);font-size:13px;line-height:1.6}
.ykf-survey-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.ykf-survey-grid>div:last-child{padding-top:100px}
.ykf-channel-line{display:grid;grid-template-columns:repeat(6,1fr);margin-top:38px;border-top:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line)}
.ykf-channel-line span{padding:17px 12px;border-right:1px solid var(--ykf-line);text-align:center;color:var(--ykf-copy);font-size:12px}.ykf-channel-line span:last-child{border-right:0}
.ykf-analysis-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:start}.ykf-analysis-grid>div:last-child{padding-top:82px}
.ykf-improvement{display:grid;grid-template-columns:repeat(4,1fr);margin:44px 0 0;padding:0;border-top:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line);list-style:none}
.ykf-improvement li{padding:23px 20px;border-right:1px solid var(--ykf-line)}.ykf-improvement li:last-child{border-right:0}.ykf-improvement span{color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-improvement b{display:block;margin-top:11px;font-size:15px}.ykf-improvement p{margin:7px 0 0;color:var(--ykf-copy);font-size:12px;line-height:1.6}
.youkefu-v3 blockquote{margin:42px 0 0;padding:4px 0 4px 22px;border-left:3px solid var(--ykf-blue);color:var(--ykf-ink);font-size:18px;font-weight:650;line-height:1.65}

.ykf-risk{background:#fff}
.ykf-standard-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:start}.ykf-standard-grid>div:last-child{padding-top:72px}
.ykf-inspection-layout{display:grid;grid-template-columns:390px 1fr;gap:90px;align-items:center}
.ykf-mobile-frame{justify-self:center;display:grid;gap:14px;width:330px;padding:16px 16px 12px;border:1px solid var(--ykf-line);border-radius:34px;background:#f0f3f8;box-shadow:0 30px 70px rgba(49,65,95,.12)}
.ykf-mobile-frame picture{overflow:hidden;border-radius:22px}.ykf-mobile-frame img{width:100%;height:auto;max-height:none;object-fit:contain;object-position:center}.ykf-mobile-frame>span{text-align:center;color:var(--ykf-copy);font-size:12px;font-weight:650}
.ykf-inspection-layout>ol{margin:0;padding:0;border-top:2px solid var(--ykf-ink);list-style:none}.ykf-inspection-layout>ol li{display:grid;grid-template-columns:52px 1fr;gap:20px;padding:23px 0;border-bottom:1px solid var(--ykf-line)}.ykf-inspection-layout>ol li>span{color:var(--ykf-blue);font-size:11px;font-weight:800}.ykf-inspection-layout b{font-size:17px}.ykf-inspection-layout p{margin:6px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.65}
.ykf-risk-scope{display:grid;grid-template-columns:repeat(6,1fr);margin-top:46px;border-top:1px solid var(--ykf-line);border-bottom:1px solid var(--ykf-line)}.ykf-risk-scope span{padding:18px 10px;border-right:1px solid var(--ykf-line);text-align:center;color:var(--ykf-copy);font-size:12px}.ykf-risk-scope span:last-child{border-right:0}
.ykf-defect-flow{display:grid;grid-template-columns:repeat(6,1fr);margin:0 0 42px;padding:0;border:1px solid var(--ykf-line);list-style:none;counter-reset:defect}.ykf-defect-flow li{position:relative;padding:22px 28px 22px 18px;border-right:1px solid var(--ykf-line);font-size:13px;font-weight:700}.ykf-defect-flow li:last-child{border-right:0}.ykf-defect-flow li:not(:last-child)::after{position:absolute;right:9px;content:"→";color:var(--ykf-blue)}
.ykf-defect-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:start}.ykf-materials{display:grid;gap:22px}.ykf-materials>div:first-child .ykf-figure-media{min-height:340px}

.ykf-archive{background:var(--ykf-surface)}
.ykf-archive-layout{display:grid;gap:28px}.ykf-archive-layout>article{display:grid;grid-template-columns:.7fr 1.3fr;gap:44px;padding:34px 38px;border-left:3px solid var(--ykf-blue);background:#fff}.ykf-archive-layout>article>span{color:var(--ykf-blue);font-size:13px;font-weight:800}.ykf-archive-layout article h3{margin:0 0 13px;font-size:30px;line-height:1.3}.ykf-archive-layout article>p{margin:0;color:var(--ykf-copy);font-size:14px;line-height:1.75}.ykf-archive-layout ul{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);margin:0;padding:0;border-top:1px solid var(--ykf-line);list-style:none}.ykf-archive-layout li{padding:20px;border-right:1px solid var(--ykf-line)}.ykf-archive-layout li:last-child{border-right:0}.ykf-archive-layout li b{font-size:15px}.ykf-archive-layout li p{margin:7px 0 0;color:var(--ykf-copy);font-size:13px;line-height:1.65}

.ykf-related{padding:84px 0;background:#fff}
.ykf-related .container{display:grid;grid-template-columns:.85fr 1.15fr;gap:90px;align-items:start}.ykf-related>div>div>span{color:var(--ykf-blue);font-size:12px;font-weight:800}.ykf-related h2{margin:13px 0 0;font-size:34px;line-height:1.28;letter-spacing:-.03em}.ykf-related nav{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ykf-line)}.ykf-related nav a{position:relative;display:grid;gap:6px;padding:22px 36px 22px 0;border-bottom:1px solid var(--ykf-line);color:var(--ykf-ink)}.ykf-related nav a:nth-child(odd){padding-right:26px;border-right:1px solid var(--ykf-line)}.ykf-related nav a:nth-child(even){padding-left:26px}.ykf-related nav b{font-size:15px}.ykf-related nav span{color:var(--ykf-copy);font-size:12px}.ykf-related nav i{position:absolute;top:24px;right:8px;color:var(--ykf-blue)}
.ykf-final{padding:110px 0!important}
.ykf-final .container{display:grid;grid-template-columns:1fr 310px;gap:80px;align-items:end}.ykf-final span{color:#dce1ff;font-size:13px;font-weight:800}.ykf-final h2{margin:16px 0 22px;color:#fff!important;font-size:50px;line-height:1.12;letter-spacing:-.04em}.ykf-final p{max-width:760px;margin:0;color:#ecedff!important;font-size:15px;line-height:1.82}.ykf-final .container>div:last-child{display:grid;gap:14px}.ykf-final .container>div:last-child>a:not(.btn){padding:13px;border:1px solid rgba(255,255,255,.55);color:#fff;text-align:center;font-size:14px;font-weight:680}

.youkefu-v3 a,.youkefu-v3 button{transition:color .22s ease,background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}
.youkefu-v3 a:active,.youkefu-v3 button:active{transform:translateY(1px)}
.youkefu-v3 a:focus-visible,.youkefu-v3 button:focus-visible,.youkefu-v3 summary:focus-visible{outline:3px solid rgba(76,100,254,.3);outline-offset:3px}
.youkefu-v3.js-motion .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.75,.25,1)}
.youkefu-v3.js-motion .reveal.is-visible{opacity:1;transform:none}

@media(max-width:1100px){
  .ykf-hero-copy{width:60%}.ykf-hero::before{background:linear-gradient(90deg,#fff 0 40%,rgba(255,255,255,.86) 55%,transparent 82%)}
  .ykf-family .container{grid-template-columns:140px 1fr 80px}.ykf-family-links>div{padding-inline:11px}.ykf-family-links a{margin-right:6px;font-size:10px}
  .ykf-product-grid{gap:12px}.ykf-product-card>a{grid-template-rows:180px 1fr}.ykf-product-image img{height:145px}.ykf-product-copy{padding:23px}.ykf-product-copy h3{font-size:21px}
  .ykf-settlement{gap:55px;padding:52px}.ykf-inspection-layout{gap:60px}
}

@media(max-width:900px){
  .ykf-product-grid{grid-template-columns:1fr}.ykf-product-card>a{grid-template-columns:.8fr 1.2fr;grid-template-rows:none}.ykf-product-image img{height:220px}
  .ykf-loop-board article{grid-template-columns:54px 190px 1fr}.ykf-loop-board ol{overflow-x:auto;padding-bottom:8px}
  .ykf-repair-proof,.ykf-standard-grid,.ykf-analysis-grid,.ykf-defect-grid{grid-template-columns:1fr}.ykf-repair-proof>div:last-child,.ykf-standard-grid>div:last-child,.ykf-analysis-grid>div:last-child{padding-top:0}
  .ykf-repair-proof>div:last-child .ykf-figure-media{min-height:auto}.ykf-materials{grid-template-columns:1fr 1fr}
  .ykf-settlement{grid-template-columns:1fr;gap:42px}.ykf-inspection-layout{grid-template-columns:320px 1fr;gap:46px}
}

@media(max-width:767px){
  .youkefu-v3 .container{width:min(100% - 32px,620px)}
  .ykf-hero{min-height:auto;padding-top:0}.ykf-hero::before{display:none}.ykf-hero-media{position:relative;inset:auto;width:100%;height:auto;aspect-ratio:16/9}.ykf-hero-media>div{background:linear-gradient(0deg,#fff 0,rgba(255,255,255,.03) 34%,transparent 58%)}
  .ykf-hero-inner{min-height:auto;display:block;padding-top:32px;padding-bottom:46px}.ykf-breadcrumb{position:static;margin-bottom:24px;font-size:12px}.ykf-hero-copy{width:100%;padding:0}.ykf-lockup{margin-bottom:17px;font-size:22px}
  .ykf-hero h1{font-size:40px;line-height:1.08}.ykf-hero h1 span{white-space:normal}.ykf-hero-copy>p{margin-top:22px;font-size:15px;line-height:1.78}
  .ykf-actions{align-items:stretch;flex-direction:column;gap:9px;margin-top:27px}.ykf-actions .btn,.ykf-actions>a:not(.btn){justify-content:center}.ykf-hero-caption{top:calc(56vw - 2px);right:9px;bottom:auto;font-size:10px}
  .ykf-hero-products .container{display:block}.ykf-hero-products a{grid-template-columns:36px 1fr;padding:19px 0;border-right:0;border-bottom:1px solid var(--ykf-line)}.ykf-hero-products a:first-child{border-left:0}.ykf-hero-products a:last-child{border-bottom:0}
  .ykf-family{top:64px}.ykf-family .container{position:relative;grid-template-columns:1fr auto;min-height:66px}.ykf-family-main{padding-right:12px;border-right:0}.ykf-family-main span,.ykf-family-main small{display:none}.ykf-family-main b{font-size:17px}
  .ykf-family-toggle{display:flex;align-items:center;gap:7px;border:0;background:transparent;color:var(--ykf-blue);font-size:12px;font-weight:750}.ykf-family-toggle i{transition:transform .2s ease}.ykf-family-toggle[aria-expanded=true] i{transform:rotate(180deg)}
  .ykf-family-links{display:none;position:absolute;top:66px;right:0;left:0;padding:10px 16px;border:1px solid var(--ykf-line);background:#fff;box-shadow:0 20px 40px rgba(49,65,95,.14)}.ykf-family-links.is-open{display:grid;grid-template-columns:1fr}.ykf-family-links>div{padding:11px 8px;border-right:0;border-bottom:1px solid var(--ykf-line)}.ykf-family-links>div:last-child{border-bottom:0}.ykf-family-links a{margin:7px 12px 5px 0;font-size:12px}.ykf-family-cta{display:none}
  .ykf-section{padding:76px 0;scroll-margin-top:126px}.ykf-subsection{padding-top:78px;scroll-margin-top:126px}.ykf-head{display:block;margin-bottom:36px}.ykf-head>span{display:block;margin-bottom:14px;padding:0}.ykf-head h2{font-size:34px;line-height:1.16}.ykf-head p{margin-top:16px;font-size:14px;line-height:1.74}
  .ykf-product-title{margin-bottom:42px;text-align:left}.ykf-product-title h2{margin-top:18px;font-size:38px}.ykf-product-title>p{font-size:14px}.ykf-product-title>div{justify-content:flex-start;margin-top:20px}
  .ykf-product-grid{gap:16px}.ykf-product-card>a{grid-template-columns:1fr;grid-template-rows:170px 1fr}.ykf-product-image img{height:138px}.ykf-product-copy{padding:24px}.ykf-product-copy h3{font-size:22px}.ykf-loop-board{margin-top:54px}.ykf-loop-board>header{grid-template-columns:1fr;gap:10px}.ykf-loop-board header h3{font-size:23px}.ykf-loop-board article{grid-template-columns:38px 1fr;gap:10px 12px;padding:22px 0}.ykf-loop-board article>b{font-size:15px}.ykf-loop-board ol{grid-column:2;display:flex;width:100%;overflow-x:auto}.ykf-loop-board li{min-width:max-content;flex:none}
  .ykf-service-flow{grid-template-columns:repeat(2,1fr)}.ykf-service-flow article{min-height:145px;padding:20px 16px}
  .ykf-phone-gallery{grid-template-columns:1fr;padding:14px}.ykf-phone-side{grid-template-columns:1fr;gap:14px}.ykf-feature-lines{grid-template-columns:1fr}.ykf-feature-lines article{padding:22px 0;border-right:0!important}
  .ykf-figure{overflow:hidden}.ykf-figure-media{padding:14px}.ykf-figure figcaption{grid-template-columns:1fr;gap:5px;padding:16px 18px}.ykf-repair-proof{gap:16px}.ykf-repair-proof>div:first-child .ykf-figure-media,.ykf-archive-layout>div .ykf-figure-media{justify-content:flex-start;overflow-x:auto}.ykf-repair-proof>div:first-child img{width:760px;max-width:none}.ykf-archive-layout>div img{width:850px;max-width:none}
  .ykf-role-flow{grid-template-columns:1fr 1fr}.ykf-role-flow li:nth-child(2){border-right:0}.ykf-role-flow li:nth-child(-n+2){border-bottom:1px solid var(--ykf-line)}
  .ykf-settlement{display:block;margin-top:78px;padding:32px 22px}.ykf-settlement-copy h2{font-size:34px}.ykf-settlement>ol{margin-top:38px}.ykf-settlement>ol li{grid-template-columns:35px 100px 1fr;gap:10px}
  .ykf-journey{padding:24px 16px;overflow-x:auto}.ykf-journey ol{grid-template-columns:repeat(7,92px);min-width:644px}.ykf-journey p{min-width:620px;text-align:left}.ykf-survey-grid{grid-template-columns:1fr;gap:16px}.ykf-survey-grid>div:last-child{padding-top:0}.ykf-channel-line{grid-template-columns:repeat(3,1fr)}.ykf-channel-line span:nth-child(3n){border-right:0}.ykf-channel-line span:nth-child(-n+3){border-bottom:1px solid var(--ykf-line)}
  .ykf-improvement{grid-template-columns:1fr 1fr}.ykf-improvement li:nth-child(2){border-right:0}.ykf-improvement li:nth-child(-n+2){border-bottom:1px solid var(--ykf-line)}.youkefu-v3 blockquote{font-size:16px}
  .ykf-standard-grid{gap:16px}.ykf-inspection-layout{grid-template-columns:1fr;gap:42px}.ykf-mobile-frame{width:min(100%,330px)}.ykf-risk-scope{grid-template-columns:repeat(3,1fr)}.ykf-risk-scope span:nth-child(3n){border-right:0}.ykf-risk-scope span:nth-child(-n+3){border-bottom:1px solid var(--ykf-line)}
  .ykf-defect-flow{grid-template-columns:repeat(6,145px);overflow-x:auto}.ykf-defect-grid{gap:16px}.ykf-materials{grid-template-columns:1fr;gap:16px}.ykf-materials>div:first-child .ykf-figure-media{min-height:auto}
  .ykf-archive-layout>article{grid-template-columns:1fr;gap:14px;padding:26px 22px}.ykf-archive-layout ul{grid-template-columns:1fr}.ykf-archive-layout li{padding:17px 0;border-right:0;border-bottom:1px solid var(--ykf-line)}.ykf-archive-layout li:last-child{border-bottom:0}.ykf-archive-layout article h3{font-size:25px}
  .ykf-related{padding:66px 0}.ykf-related .container{grid-template-columns:1fr;gap:32px}.ykf-related h2{font-size:28px}.ykf-related nav{grid-template-columns:1fr}.ykf-related nav a{padding:18px 32px 18px 0!important;border-right:0!important}
  .ykf-final{padding:80px 0!important}.ykf-final .container{grid-template-columns:1fr;gap:34px}.ykf-final h2{font-size:36px}.ykf-final .container>div:last-child{width:100%}
}

@media(prefers-reduced-motion:reduce){
  .youkefu-v3{scroll-behavior:auto}.youkefu-v3 *{animation-duration:.01ms!important;transition-duration:.01ms!important}.youkefu-v3.js-motion .reveal{opacity:1;transform:none}
}

/* Evidence rhythm aligned with the membership-center product pages. Large
   primary evidence stays readable, while secondary evidence steps down in
   the same bordered presentation. */
.youkefu-v3 .ykf-phone-gallery{margin-top:54px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:24px;padding:0;border:0;background:transparent;align-items:stretch}
.youkefu-v3 .ykf-phone-main,.youkefu-v3 .ykf-phone-side figure{display:grid;grid-template-rows:1fr auto;min-width:0;overflow:hidden;margin:0;border:1px solid var(--ykf-line);border-radius:11px;background:#fff;box-shadow:0 24px 70px rgba(49,65,95,.1)}
.youkefu-v3 .ykf-phone-main{align-self:start}
.youkefu-v3 .ykf-phone-side{display:grid;grid-template-columns:1fr;gap:24px;min-width:0}
.youkefu-v3 .ykf-phone-device-card{min-height:310px;padding:20px 22px 10px;display:grid;place-items:center;background:linear-gradient(145deg,#eef2f8,#f8faff)}
.youkefu-v3 .ykf-phone-main .ykf-phone-device-card{min-height:540px;padding:30px 28px 14px}
.youkefu-v3 .ykf-phone-side .ykf-phone-device-card{min-height:260px;padding:17px 18px 8px}
.youkefu-v3 .ykf-phone-gallery figure figcaption{display:grid;grid-template-columns:100px 1fr;gap:16px;padding:16px 18px;border-top:1px solid var(--ykf-line);background:#fff}
.youkefu-v3 .ykf-phone-gallery figure figcaption span{padding-top:2px;color:var(--ykf-blue);font-size:11px;font-weight:800}
.youkefu-v3 .ykf-phone-gallery figure figcaption b{font-size:14px;line-height:1.55}
.youkefu-v3 .ykf-device{position:relative;width:min(100%,620px);aspect-ratio:693/422;margin:auto;isolation:isolate;overflow:hidden}
.youkefu-v3 .ykf-device-shell{position:absolute;z-index:2;top:0;left:0;width:115.44%;height:auto;max-width:none;aspect-ratio:auto;object-fit:contain;border:0;background:transparent;box-shadow:none;pointer-events:none;transform:translate(-6.625%,-24.5%)}
.youkefu-v3 .ykf-device-screen{position:absolute;z-index:3;top:6.4%;left:22%;width:72.9%;height:77%;overflow:hidden;border-radius:3.2%;background:#14234b}
.youkefu-v3 .ykf-device-screen img{width:100%;height:100%;max-width:none;border:0;background:#14234b;box-shadow:none;object-fit:fill}
.youkefu-v3 .ykf-device-home .ykf-device-shell{z-index:1}
.youkefu-v3 .ykf-repair-proof,.youkefu-v3 .ykf-survey-grid,.youkefu-v3 .ykf-analysis-grid,.youkefu-v3 .ykf-standard-grid,.youkefu-v3 .ykf-defect-grid{margin-top:54px;grid-template-columns:minmax(0,1.16fr) minmax(0,.84fr);gap:24px;align-items:stretch}
.youkefu-v3 .ykf-figure{height:100%;display:grid;grid-template-rows:1fr auto;overflow:hidden;border-radius:11px;box-shadow:0 24px 70px rgba(49,65,95,.1)}
.youkefu-v3 .ykf-figure-media{min-height:320px;padding:18px;background:linear-gradient(145deg,#eef2f8,#f8faff)}
.youkefu-v3 .ykf-figure-media picture{width:100%;display:flex;align-items:center;justify-content:center}
.youkefu-v3 .ykf-figure-media img{width:100%;height:auto;max-height:520px;max-width:100%;object-fit:contain;border:0;box-shadow:none}
.youkefu-v3 .ykf-repair-proof .ykf-figure,.youkefu-v3 .ykf-survey-grid .ykf-figure,.youkefu-v3 .ykf-analysis-grid .ykf-figure,.youkefu-v3 .ykf-standard-grid .ykf-figure{height:auto;align-self:start}
.youkefu-v3 .ykf-defect-grid .ykf-figure{height:100%;align-self:stretch}
.youkefu-v3 .ykf-repair-proof>div:last-child,.youkefu-v3 .ykf-survey-grid>div:last-child,.youkefu-v3 .ykf-standard-grid>div:last-child,.youkefu-v3 .ykf-analysis-grid>div:last-child{padding-top:0}
.youkefu-v3 .ykf-repair-proof>div:last-child .ykf-figure-media,.youkefu-v3 .ykf-standard-grid>div:last-child .ykf-figure-media,.youkefu-v3 .ykf-analysis-grid>div:last-child .ykf-figure-media{min-height:320px}
.youkefu-v3 .ykf-defect-grid .ykf-materials{gap:24px}

@media(max-width:900px){
  .youkefu-v3 .ykf-phone-gallery{grid-template-columns:1fr;gap:18px}
  .youkefu-v3 .ykf-phone-side{grid-template-columns:1fr 1fr;gap:18px}
  .youkefu-v3 .ykf-phone-main .ykf-phone-device-card{min-height:440px}
  .youkefu-v3 .ykf-phone-side .ykf-phone-device-card{min-height:270px}
  .youkefu-v3 .ykf-repair-proof,.youkefu-v3 .ykf-survey-grid,.youkefu-v3 .ykf-analysis-grid,.youkefu-v3 .ykf-standard-grid,.youkefu-v3 .ykf-defect-grid{grid-template-columns:1fr;gap:18px}
}

@media(max-width:767px){
  .youkefu-v3 .ykf-phone-gallery{margin-top:36px;gap:16px}
  .youkefu-v3 .ykf-phone-side{grid-template-columns:1fr;gap:16px}
  .youkefu-v3 .ykf-phone-device-card,.youkefu-v3 .ykf-phone-main .ykf-phone-device-card,.youkefu-v3 .ykf-phone-side .ykf-phone-device-card{min-height:280px;padding:15px 14px 8px}
  .youkefu-v3 .ykf-phone-gallery figure figcaption{grid-template-columns:1fr;gap:5px;padding:15px 16px}
  .youkefu-v3 .ykf-repair-proof,.youkefu-v3 .ykf-survey-grid,.youkefu-v3 .ykf-analysis-grid,.youkefu-v3 .ykf-standard-grid,.youkefu-v3 .ykf-defect-grid{margin-top:36px;gap:16px}
  .youkefu-v3 .ykf-figure-media,.youkefu-v3 .ykf-repair-proof>div:last-child .ykf-figure-media,.youkefu-v3 .ykf-standard-grid>div:last-child .ykf-figure-media,.youkefu-v3 .ykf-analysis-grid>div:last-child .ykf-figure-media{min-height:0;padding:14px}
  .youkefu-v3 .ykf-figure-media img{width:100%;max-width:100%;max-height:none}
}