/* media.nextoperation.com - common style v4 */
:root{
  --navy:#0f2a4d; --blue:#0b63d6; --blue-dark:#084a9e; --blue-light:#eaf2fd;
  --ink:#1a2332; --gray:#5b6778; --gray-light:#8a96a8;
  --line:#e3e9f2; --bg:#ffffff; --bg-soft:#f6f9fc; --gold:#c9a227;
  --radius:14px; --shadow:0 6px 24px rgba(15,42,77,.08);
  --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.pc-only{display:inline}
@media(max-width:760px){.pc-only{display:none}}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo-mark{width:40px;height:40px;border-radius:10px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;letter-spacing:.02em;flex:none}
.logo-mark span{color:#5ea2f0}
.logo-text{line-height:1.25}
.logo-text strong{display:block;font-size:17px;letter-spacing:.01em}
.logo-text small{display:block;font-size:11px;color:var(--gray);letter-spacing:.08em}
.lg-blue{color:#0b63d6}.lg-red{color:#e03131}.lg-green{color:#1e9e4a}
.global-nav{display:flex;gap:2px;align-items:center}
.global-nav a{color:var(--ink);font-size:14px;padding:8px 10px;border-radius:8px;white-space:nowrap}
.global-nav a:hover{background:var(--blue-light);text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:44px;height:44px;cursor:pointer;font-size:20px;color:var(--navy);align-items:center;justify-content:center}
@media(max-width:980px){
  .nav-toggle{display:flex}
  .global-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 16px;box-shadow:var(--shadow)}
  .global-nav.open{display:flex}
  .global-nav a{padding:12px 8px;border-bottom:1px solid var(--bg-soft)}
}
.ad-notice-bar{background:var(--navy);color:#dbe7f7;font-size:12px;text-align:center;padding:6px 16px;letter-spacing:.02em}

/* breadcrumb */
.breadcrumb{font-size:13px;color:var(--gray);padding:18px 0 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li+li::before{content:"›";margin-right:6px;color:var(--gray-light)}
.breadcrumb a{color:var(--gray)}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,#123a6b 55%,var(--blue-dark) 100%);color:#fff;padding:64px 0 72px}
.hero-eyebrow{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:12px;letter-spacing:.12em;padding:4px 12px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:38px;line-height:1.45;font-weight:800;letter-spacing:.01em}
.hero p.lead{margin-top:16px;font-size:17px;color:#d7e5f7;max-width:720px}
.hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.hero-points{margin-top:36px;display:flex;gap:10px;flex-wrap:wrap}
.hero-points li{list-style:none;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:10px;padding:8px 14px;font-size:13px;color:#eaf2fd}
@media(max-width:760px){.hero{padding:44px 0 52px}.hero h1{font-size:28px}.hero p.lead{font-size:15px}}

.hero-visual{background:#eef4fa}
.hero-visual img{width:100%;height:auto}
.hero-sub{background:linear-gradient(135deg,var(--navy) 0%,#123a6b 55%,var(--blue-dark) 100%);color:#fff;padding:44px 0 52px}
.hero-sub h1{font-size:30px;line-height:1.5;font-weight:800}
.hero-sub p.lead{margin-top:12px;font-size:16px;color:#d7e5f7;max-width:760px}
@media(max-width:760px){.hero-sub h1{font-size:24px}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:14px 28px;font-size:16px;font-weight:700;border:1px solid transparent;cursor:pointer;text-align:center}
.btn:hover{text-decoration:none;opacity:.92}
.btn-primary{background:var(--blue);color:#fff}
.btn-white{background:#fff;color:var(--navy)}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-outline-blue{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-block{display:flex;width:100%}
.btn-affiliate{background:var(--blue);color:#fff;position:relative}
.ad-label{display:inline-block;background:#fff3cd;color:#7a5b00;font-size:11px;font-weight:700;border-radius:4px;padding:1px 7px;letter-spacing:.06em;vertical-align:middle}
.ad-label.on-dark{background:rgba(255,255,255,.2);color:#ffe9a8}

/* sections */
.section{padding:64px 0}
.section-soft{background:var(--bg-soft)}
.section-head{margin-bottom:32px}
.section-head .kicker{font-size:12px;letter-spacing:.16em;color:var(--blue);font-weight:700}
.section-head h2{font-size:28px;line-height:1.5;margin-top:6px}
.section-head p{color:var(--gray);margin-top:8px;max-width:760px}
@media(max-width:760px){.section{padding:44px 0}.section-head h2{font-size:23px}}

/* feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.feature-grid{grid-template-columns:1fr}}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.feature-card .num{width:38px;height:38px;border-radius:50%;background:var(--blue-light);color:var(--blue);font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--gray)}

/* category cards */
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:760px){.category-grid{grid-template-columns:1fr}}
.category-card{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;color:var(--ink);transition:box-shadow .2s,border-color .2s}
.category-card:hover{text-decoration:none;box-shadow:var(--shadow);border-color:#c9d9f2}
.category-icon{width:56px;height:56px;flex:none;border-radius:14px;background:var(--blue-light);display:flex;align-items:center;justify-content:center}
.category-icon svg{width:30px;height:30px;stroke:var(--blue);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.category-card h3{font-size:19px;margin-bottom:4px}
.category-card p{font-size:14px;color:var(--gray)}
.category-card .go{margin-top:10px;font-size:13px;color:var(--blue);font-weight:700}

/* article cards */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.article-grid{grid-template-columns:1fr}}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.article-card:hover{box-shadow:var(--shadow)}
.article-thumb{background:linear-gradient(135deg,var(--blue-light),#d7e7fb);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:var(--blue);font-weight:700;font-size:14px;letter-spacing:.06em}
.article-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.tag{display:inline-block;align-self:flex-start;background:var(--blue-light);color:var(--blue-dark);font-size:12px;font-weight:700;border-radius:999px;padding:2px 10px}
.article-body h3{font-size:17px;line-height:1.55}
.article-body h3 a{color:var(--ink)}
.article-body p{font-size:14px;color:var(--gray);flex:1}
.article-meta{font-size:12px;color:var(--gray-light)}
.empty-box{border:1.5px dashed #c3d2e6;border-radius:var(--radius);background:#fff;padding:36px 28px;text-align:center;color:var(--gray)}
.empty-box strong{display:block;color:var(--ink);font-size:17px;margin-bottom:6px}
.empty-box p{font-size:14px}

/* flow */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.flow-grid{grid-template-columns:1fr}}
.flow-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.flow-step .step{font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:700}
.flow-step h3{font-size:17px;margin:6px 0 8px}
.flow-step p{font-size:14px;color:var(--gray)}

/* disclosure / notes */
.disclosure{background:#fff8e6;border:1px solid #ecd9a0;border-radius:var(--radius);padding:22px 24px;font-size:14px}
.disclosure h3{font-size:16px;margin-bottom:8px}
.note-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;font-size:14px}
.note-box h3{font-size:16px;margin-bottom:8px}
.check-list{list-style:none}
.check-list li{padding:10px 0 10px 30px;position:relative;border-bottom:1px solid var(--line);font-size:15px}
.check-list li:last-child{border-bottom:none}
.check-list li::before{content:"";position:absolute;left:2px;top:17px;width:14px;height:8px;border-left:3px solid var(--blue);border-bottom:3px solid var(--blue);transform:rotate(-45deg)}

/* prose (common & article pages) */
.page-head{padding:36px 0 8px}
.page-head h1{font-size:32px;line-height:1.5}
.page-head p{color:var(--gray);margin-top:10px;max-width:780px}
@media(max-width:760px){.page-head h1{font-size:26px}}
.prose{max-width:820px;padding-bottom:64px}
.prose h2{font-size:23px;margin:40px 0 14px;padding-bottom:8px;border-bottom:2px solid var(--blue-light)}
.prose h3{font-size:18px;margin:28px 0 10px}
.prose p{margin:12px 0}
.prose ul,.prose ol{margin:12px 0 12px 24px}
.prose li{margin:6px 0}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.prose th{background:var(--bg-soft);width:32%;font-weight:700}
.prose .small{font-size:13px;color:var(--gray)}
.prose .cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;margin:28px 0;background:#fff;box-shadow:var(--shadow)}
.prose .cta-box p{margin:6px 0 16px;font-size:14px;color:var(--gray)}
.article-disclosure{background:#fff8e6;border:1px solid #ecd9a0;border-radius:10px;padding:12px 16px;font-size:13px;margin:20px 0}
.article-meta-line{font-size:13px;color:var(--gray-light);margin-top:12px;display:flex;gap:16px;flex-wrap:wrap}

/* related */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:760px){.related-grid{grid-template-columns:1fr}}
.related-grid a{display:block;border:1px solid var(--line);border-radius:10px;padding:16px 18px;color:var(--ink);background:#fff;font-weight:700}
.related-grid a small{display:block;font-weight:400;color:var(--gray);font-size:13px;margin-top:2px}
.related-grid a:hover{text-decoration:none;box-shadow:var(--shadow)}

/* footer */
.site-footer{background:var(--navy);color:#c9d9ee;margin-top:0}
.footer-inner{padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-grid ul{list-style:none}
.footer-grid li{margin:8px 0;font-size:14px}
.footer-grid a{color:#c9d9ee}
.footer-about{font-size:13px;line-height:1.9;max-width:340px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding:18px 0 22px;font-size:12px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.back-top{text-align:center;padding:0 0 28px}
.back-top a{color:#c9d9ee;font-size:13px}