:root {
    --ys-navy: #123a63;
    --ys-deep: #082033;
    --ys-blue: #2e8fbd;
    --ys-cyan: #00a6d6;
    --ys-accent: #f59e0b;
    --ys-green: #003b3a;
    --ys-bg: #f6f8fb;
    --ys-card: #ffffff;
    --ys-text: #172233;
    --ys-muted: #687386;
    --ys-border: #dfe7ef;
    --ys-shadow: 0 18px 50px rgba(18, 58, 99, .12);
    --ys-radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Sans", "Yu Gothic", Arial, sans-serif;
    background: var(--ys-bg);
    color: var(--ys-text);
    line-height: 1.72;
}
a { color: var(--ys-blue); text-decoration: none; }
a:hover { color: var(--ys-accent); }
img { max-width: 100%; height: auto; display: block; }
.ys-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.ys-site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(18, 58, 99, .10);
}
.ys-header-inner {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}
.ys-brand { display: flex; align-items: center; min-width: 180px; }
.ys-brand img { width: min(300px, 42vw); max-height: 62px; object-fit: contain; object-position: left center; }
.ys-logo-fallback { display: block; }
.custom-logo-link img { width: min(300px, 42vw); max-height: 62px; object-fit: contain; object-position: left center; }
.ys-nav { display: flex; align-items: center; gap: 18px; }
.ys-nav-links, .ys-nav ul { display: flex; align-items: center; gap: 20px; list-style: none; margin: 0; padding: 0; }
.ys-nav-links a, .ys-nav ul a {
    display: inline-flex;
    align-items: center;
    color: var(--ys-deep);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    padding: 8px 0;
    position: relative;
}
.ys-nav-links a::after, .ys-nav ul a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--ys-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .25s ease;
}
.ys-nav-links a:hover::after, .ys-nav ul a:hover::after,
.current-menu-item > a::after { transform: scaleX(1); transform-origin: left; }
.ys-header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--ys-navy);
    color: #fff;
    font-weight: 800;
    font-size: 13px;
    box-shadow: 0 12px 28px rgba(18, 58, 99, .25);
}
.ys-header-cta:hover { color:#fff; background: var(--ys-green); transform: translateY(-1px); }
.ys-menu-toggle { display:none; width:42px; height:42px; border:0; border-radius:14px; background:#eef6fb; color:var(--ys-navy); font-size:22px; cursor:pointer; }
.ys-hero {
    min-height: 660px;
    display: flex;
    align-items: center;
    color: #fff;
    background: linear-gradient(110deg, rgba(3, 26, 43, .92), rgba(18, 58, 99, .72), rgba(0, 166, 214, .30)), var(--ys-hero-image);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.ys-hero::after {
    content:"";
    position:absolute;
    right:-140px;
    bottom:-180px;
    width:520px;
    height:520px;
    border-radius:50%;
    background: radial-gradient(circle, rgba(245,158,11,.32), rgba(245,158,11,0) 65%);
}
.ys-hero-content { position: relative; z-index: 2; max-width: 820px; padding: 80px 0; }
.ys-kicker { margin: 0 0 14px; color: #bcecff; font-weight: 900; letter-spacing: .18em; font-size: 13px; text-transform: uppercase; }
.ys-hero h1 { margin:0; font-size: clamp(38px, 6vw, 78px); line-height:1.05; letter-spacing:-.04em; }
.ys-hero h1 span { color: #ffcb6a; }
.ys-hero-lead { margin: 24px 0 34px; max-width: 720px; font-size: clamp(17px, 2vw, 22px); color: rgba(255,255,255,.90); }
.ys-actions { display:flex; gap:14px; flex-wrap:wrap; }
.ys-btn {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    padding: 13px 24px;
    border-radius:999px;
    font-weight:900;
    border:1px solid transparent;
    cursor:pointer;
    transition:.25s ease;
}
.ys-btn-primary { background: var(--ys-accent); color:#fff; box-shadow: 0 16px 34px rgba(245,158,11,.26); }
.ys-btn-primary:hover { color:#fff; transform: translateY(-2px); filter: brightness(.98); }
.ys-btn-ghost { background: rgba(255,255,255,.10); color:#fff; border-color: rgba(255,255,255,.35); }
.ys-btn-ghost:hover { background:#fff; color:var(--ys-navy); }
.ys-hero-stats { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin-top: 46px; max-width: 760px; }
.ys-stat { padding: 18px; border-radius: 18px; background: rgba(255,255,255,.11); border:1px solid rgba(255,255,255,.18); backdrop-filter: blur(10px); }
.ys-stat strong { display:block; font-size:24px; line-height:1; }
.ys-stat span { display:block; margin-top:7px; color:rgba(255,255,255,.78); font-size:12px; font-weight:700; }
.ys-section { padding: 86px 0; }
.ys-section.alt { background: #fff; }
.ys-section-head { display:flex; align-items:end; justify-content:space-between; gap: 28px; margin-bottom: 34px; }
.ys-section-title { margin:0; font-size: clamp(28px, 4vw, 46px); line-height:1.15; letter-spacing:-.04em; color:var(--ys-deep); }
.ys-section-sub { margin: 10px 0 0; color: var(--ys-muted); max-width: 650px; }
.ys-card, .ys-panel {
    background: var(--ys-card);
    border: 1px solid rgba(18,58,99,.08);
    border-radius: var(--ys-radius);
    box-shadow: var(--ys-shadow);
}
.ys-panel { padding: clamp(24px, 4vw, 44px); }
.ys-grid { display:grid; gap:24px; }
.ys-grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.ys-grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.ys-grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.ys-business-card { padding: 28px; position: relative; overflow: hidden; transition: .25s ease; }
.ys-business-card::before { content:""; position:absolute; inset:0 auto 0 0; width:5px; background: linear-gradient(var(--ys-blue), var(--ys-accent)); }
.ys-business-card:hover { transform: translateY(-6px); box-shadow: 0 22px 60px rgba(18, 58, 99, .16); }
.ys-business-icon { width:56px; height:56px; border-radius:18px; display:flex; align-items:center; justify-content:center; font-size:28px; background:#eef7fb; margin-bottom:18px; }
.ys-business-card h3 { margin: 0 0 8px; color:var(--ys-navy); font-size:20px; }
.ys-business-card p { margin:0; color:var(--ys-muted); }
.ys-flow { counter-reset: flow; }
.ys-flow-item { padding: 28px; min-height: 205px; position:relative; }
.ys-flow-item::before { counter-increment: flow; content: "0" counter(flow); display:inline-flex; align-items:center; justify-content:center; width:42px; height:42px; border-radius:50%; background: var(--ys-navy); color:#fff; font-weight:900; margin-bottom:18px; }
.ys-flow-item h3 { margin:0 0 10px; }
.ys-category-card { padding: 30px; background: linear-gradient(160deg,#fff,#f4f9fc); transition:.25s ease; }
.ys-category-card:hover { transform: translateY(-5px); border-color: rgba(0,166,214,.35); }
.ys-category-card h3 { margin:0 0 8px; color:var(--ys-navy); }
.ys-category-card p { margin:0; color:var(--ys-muted); }
.ys-brand-wall { display:grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap:18px; }
.ys-brand-item { background:#fff; border:1px solid var(--ys-border); border-radius:20px; padding:24px 18px; text-align:center; transition:.25s ease; }
.ys-brand-item:hover { transform: translateY(-5px); box-shadow: var(--ys-shadow); border-color: rgba(245,158,11,.50); }
.ys-brand-mark { width:72px; height:72px; border-radius:22px; background:linear-gradient(135deg,#e7f6fd,#fff7e6); display:flex; align-items:center; justify-content:center; margin:0 auto 12px; color: var(--ys-navy); font-weight:900; font-size:26px; overflow:hidden; }
.ys-brand-mark img { width:100%; height:100%; object-fit:contain; padding: 8px; }
.ys-brand-item h3 { margin:0 0 4px; font-size:16px; color:var(--ys-deep); }
.ys-brand-item p { margin:0; font-size:12px; color: var(--ys-muted); }
.ys-product-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap:22px; }
.ys-product-card { overflow:hidden; background:#fff; border:1px solid var(--ys-border); border-radius:22px; box-shadow: 0 8px 25px rgba(18,58,99,.07); transition:.25s ease; }
.ys-product-card:hover { transform: translateY(-5px); box-shadow: var(--ys-shadow); }
.ys-product-thumb { aspect-ratio: 4/3; background:#eef6fb; display:flex; align-items:center; justify-content:center; color:var(--ys-muted); font-weight:800; overflow:hidden; }
.ys-product-thumb img { width:100%; height:100%; object-fit:cover; }
.ys-product-body { padding:20px; }
.ys-product-body h3 { margin:0 0 8px; font-size:19px; }
.ys-product-body p { margin:0 0 12px; color:var(--ys-muted); font-size:14px; }
.ys-product-meta { display:flex; flex-wrap:wrap; gap:8px; margin:12px 0 16px; }
.ys-chip { display:inline-flex; padding:5px 9px; border-radius:999px; background:#eef7fb; color:var(--ys-navy); font-size:12px; font-weight:800; }
.ys-page-hero { padding: 74px 0; color:#fff; background: linear-gradient(110deg, rgba(3,26,43,.92), rgba(18,58,99,.78)), url('../images/banten.jpg') center/cover no-repeat; }
.ys-page-hero h1 { margin:0; font-size: clamp(34px, 5vw, 58px); letter-spacing:-.04em; }
.ys-page-subtitle { margin:12px 0 0; max-width:720px; color:rgba(255,255,255,.86); font-size:18px; }
.ys-company-table { width:100%; border-collapse: collapse; }
.ys-company-table th, .ys-company-table td { padding:18px 0; border-bottom:1px solid var(--ys-border); vertical-align:top; text-align:left; }
.ys-company-table th { width:170px; color:var(--ys-navy); }
.ys-sales-grid { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:16px; margin-top: 22px; }
.ys-sales-item { padding:22px; border-radius:18px; background:#fff; border:1px solid var(--ys-border); box-shadow: 0 8px 25px rgba(18,58,99,.06); text-align:center; }
.ys-sales-item span { display:block; color:var(--ys-muted); font-weight:800; font-size:13px; }
.ys-sales-item strong { display:block; margin-top:7px; color:var(--ys-navy); font-size:22px; }
.ys-contact-layout { display:grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .75fr); gap:28px; align-items:start; }
.ys-form { display:grid; gap:16px; }
.ys-form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.ys-field label { display:block; font-weight:900; margin-bottom:7px; color:var(--ys-deep); font-size:14px; }
.ys-required { color:#e34b4b; }
.ys-input, .ys-select, .ys-textarea {
    width:100%; min-height:48px; padding:12px 14px; border:1px solid var(--ys-border); border-radius:14px; background:#fff; color:var(--ys-text); font:inherit; outline:none; transition:.2s ease;
}
.ys-textarea { min-height:140px; resize:vertical; }
.ys-input:focus, .ys-select:focus, .ys-textarea:focus { border-color:var(--ys-blue); box-shadow:0 0 0 4px rgba(0,166,214,.12); }
.ys-alert { padding:14px 16px; border-radius:14px; font-weight:800; margin-bottom:18px; }
.ys-alert-success { background:#e8f8ef; color:#116333; }
.ys-alert-error { background:#fff0f0; color:#a83232; }
.ys-info-box { padding:24px; margin-bottom:18px; }
.ys-info-box h3 { margin:0 0 10px; color:var(--ys-navy); }
.ys-info-box p { margin:0 0 6px; color:var(--ys-muted); }
.ys-cta-band { padding: 52px 0; background: linear-gradient(120deg, var(--ys-navy), var(--ys-green)); color:#fff; }
.ys-cta-inner { display:flex; align-items:center; justify-content:space-between; gap:28px; }
.ys-cta-inner h2 { margin:0; font-size: clamp(26px, 4vw, 42px); letter-spacing:-.03em; }
.ys-cta-inner p { margin:10px 0 0; color:rgba(255,255,255,.80); }
.ys-site-footer { background: var(--ys-deep); color: rgba(255,255,255,.70); padding:54px 0 26px; }
.ys-footer-grid { display:grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 34px; }
.ys-footer-logo img { max-width:280px; background:#fff; border-radius:14px; padding:8px; margin-bottom:16px; }
.ys-footer-title { color:#fff; font-weight:900; margin:0 0 14px; }
.ys-footer-list { list-style:none; margin:0; padding:0; }
.ys-footer-list li { margin-bottom:8px; }
.ys-footer-list a { color:rgba(255,255,255,.72); }
.ys-copyright { margin-top:38px; padding-top:22px; border-top:1px solid rgba(255,255,255,.12); font-size:13px; text-align:center; }
.ys-entry { padding: 70px 0; }
.ys-entry-content { background:#fff; border-radius:var(--ys-radius); border:1px solid var(--ys-border); padding: clamp(24px, 4vw, 44px); box-shadow: var(--ys-shadow); }
.ys-empty { padding:28px; border-radius:18px; background:#fff7e6; color:#725113; }
@media (max-width: 1020px) {
    .ys-menu-toggle { display:inline-flex; align-items:center; justify-content:center; }
    .ys-nav { position: fixed; left: 20px; right: 20px; top: 88px; background:#fff; border:1px solid var(--ys-border); border-radius:22px; box-shadow: var(--ys-shadow); padding:20px; display:none; flex-direction:column; align-items:stretch; }
    .ys-nav.is-open { display:flex; }
    .ys-nav-links, .ys-nav ul { flex-direction:column; align-items:stretch; gap:6px; }
    .ys-nav-links a, .ys-nav ul a { padding:10px 12px; border-radius:12px; }
    .ys-nav-links a:hover, .ys-nav ul a:hover { background:#eef7fb; }
    .ys-header-cta { width:100%; }
    .ys-grid-4, .ys-grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .ys-hero-stats, .ys-sales-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .ys-contact-layout, .ys-footer-grid { grid-template-columns:1fr; }
}
@media (max-width: 680px) {
    .ys-container { width: min(100% - 28px, 1180px); }
    .ys-header-inner { min-height:70px; }
    .ys-brand img, .custom-logo-link img { width:220px; max-height:48px; }
    .ys-hero { min-height: 560px; }
    .ys-hero-content { padding: 60px 0; }
    .ys-actions { flex-direction:column; }
    .ys-btn { width:100%; }
    .ys-hero-stats, .ys-grid-2, .ys-grid-3, .ys-grid-4, .ys-sales-grid, .ys-form-row { grid-template-columns:1fr; }
    .ys-section { padding: 58px 0; }
    .ys-section-head { display:block; }
    .ys-company-table th, .ys-company-table td { display:block; width:100%; padding:12px 0; }
    .ys-company-table th { padding-bottom:0; border-bottom:0; }
    .ys-cta-inner { flex-direction:column; align-items:flex-start; }
}