:root{--navy-900:#10213f;--navy-700:#1d3557;--blue-600:#326da8;--blue-100:#eaf1f8;--surface-main:#f7f6f2;--surface-white:#fff;--surface-blue:#eef4f8;--surface-warm:#f4f0e7;--gold-500:#b69345;--gold-200:#e5d4a7;--green-600:#347568;--text:#24303c;--muted:#65717d;--line:#d9dcd9;--shadow:0 16px 44px rgba(16,33,63,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--surface-main);color:var(--text);font-family:"Inter","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;line-height:1.8;letter-spacing:.02em;-webkit-font-smoothing:antialiased}a{color:inherit}.container{width:min(1180px,calc(100% - 44px));margin:auto}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;line-height:1.15}.brand-logo-full{display:block;height:42px;width:auto;filter:drop-shadow(0 1px 1px rgba(16,33,63,.06))}.brand-logo-icon{display:none;height:34px;width:auto;filter:drop-shadow(0 1px 1px rgba(16,33,63,.06))}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.main-nav{display:flex;justify-content:center;gap:24px}.main-nav a{text-decoration:none;color:var(--navy-700);font-size:13px;font-weight:600;white-space:nowrap}.main-nav a:hover{color:var(--blue-600)}.header-actions{display:flex;align-items:center;gap:10px}.search-link,.header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 14px;border-radius:6px;text-decoration:none;font-size:12px;font-weight:700}.search-link{border:1px solid var(--line);background:#fff;color:var(--navy-700)}.header-cta{background:var(--navy-900);color:#fff}.hero{padding:74px 0 72px;background:linear-gradient(180deg,#fff 0%,var(--surface-blue) 100%);border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(400px,.98fr);align-items:center;gap:64px}.eyebrow,.section-en{color:var(--gold-500);font-size:11px;font-weight:800;letter-spacing:.23em}.hero h1{margin:18px 0 0;color:var(--navy-900);font-size:clamp(38px,4.4vw,58px);line-height:1.32;letter-spacing:-.035em}.hero p{max-width:650px;margin:23px 0 0;color:#526170;font-size:16px}.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:7px;text-decoration:none;font-size:13px;font-weight:700}.button.primary{background:var(--navy-900);color:#fff}.button.secondary{border:1px solid var(--navy-700);background:#fff;color:var(--navy-700)}.hero-visual img{display:block;width:100%;height:auto}.gateway{position:relative;margin-top:-1px;background:#fff;border-bottom:1px solid var(--line)}.gateway-grid{display:grid;grid-template-columns:repeat(4,1fr)}.gateway a{display:block;min-height:190px;padding:30px 26px;text-decoration:none;border-right:1px solid var(--line);transition:.18s}.gateway a:first-child{border-left:1px solid var(--line)}.gateway a:hover{background:var(--surface-blue)}.gateway small{color:var(--gold-500);font-size:10px;font-weight:800;letter-spacing:.18em}.gateway h2{margin:10px 0 0;color:var(--navy-900);font-size:19px}.gateway p{margin:9px 0 0;color:var(--muted);font-size:12.5px;line-height:1.7}.gateway em{display:block;margin-top:18px;color:var(--blue-600);font-style:normal;font-size:12px;font-weight:700}.section{padding:84px 0}.section.white{background:#fff}.section.blue{background:var(--surface-blue)}.section.warm{background:var(--surface-warm)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.section-head h2{margin:7px 0 0;color:var(--navy-900);font-size:32px;line-height:1.4}.section-head p{max-width:520px;margin:0;color:var(--muted);font-size:13px}.featured-grid{display:grid;grid-template-columns:1.45fr .85fr;gap:28px}.featured-main{display:grid;grid-template-columns:1fr .86fr;min-height:370px;background:var(--navy-900);color:#fff;text-decoration:none;overflow:hidden}.featured-copy{padding:42px}.featured-copy .label{color:var(--gold-200);font-size:10px;font-weight:800;letter-spacing:.2em}.featured-copy h3{margin:20px 0 0;font-size:27px;line-height:1.55}.featured-copy p{margin:18px 0 0;color:#c9d4e2;font-size:13.5px}.featured-copy .meta{margin-top:30px;color:#aebbd0;font-size:11px}.featured-art{display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#23476f,#152c4c);padding:32px}.featured-art svg{width:100%;height:auto}.news-list{border-top:1px solid var(--line)}.news-list a{display:block;padding:20px 4px;text-decoration:none;border-bottom:1px solid var(--line)}.news-list small{color:var(--gold-500);font-size:10px;font-weight:800}.news-list h3{margin:7px 0 0;color:var(--navy-900);font-size:16px;line-height:1.65}.news-list span{display:block;margin-top:7px;color:var(--muted);font-size:11px}.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.theme-grid a{display:block;min-height:174px;padding:26px;text-decoration:none;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.theme-grid a:nth-child(2),.theme-grid a:nth-child(6){background:#fff}.theme-grid a:nth-child(3),.theme-grid a:nth-child(4){background:rgba(234,241,248,.7)}.theme-grid h3{margin:0;color:var(--navy-900);font-size:18px}.theme-grid p{margin:8px 0 0;color:var(--muted);font-size:12.5px}.theme-grid span{display:block;margin-top:20px;color:var(--blue-600);font-size:11px;font-weight:700}.tools{background:var(--navy-900);color:#fff}.tools .section-en{color:var(--gold-200)}.tools .section-head h2{color:#fff}.tools .section-head p{color:#b9c5d5}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid rgba(255,255,255,.17);border-left:1px solid rgba(255,255,255,.17)}.tool-card{display:block;min-height:230px;padding:30px;text-decoration:none;border-right:1px solid rgba(255,255,255,.17);border-bottom:1px solid rgba(255,255,255,.17);transition:.18s}.tool-card:hover{background:rgba(255,255,255,.05)}.tool-card small{color:var(--gold-200);font-size:10px;letter-spacing:.16em}.tool-card h3{margin:12px 0 0;font-size:21px}.tool-card p{margin:10px 0 0;color:#bdc9d9;font-size:12.5px}.tool-card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:20px 0 0;font-size:11px}.tool-card dt{color:#8798ae}.tool-card dd{margin:0;color:#d5deea}.guide-grid,.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.guide-card,.video-card{display:block;text-decoration:none;background:#fff;border-top:3px solid var(--navy-700);padding:26px;min-height:250px}.guide-card .level{display:inline-block;padding:3px 9px;background:var(--surface-blue);color:var(--blue-600);font-size:10px;font-weight:800}.guide-card h3,.video-card h3{margin:18px 0 0;color:var(--navy-900);font-size:18px;line-height:1.6}.guide-card p,.video-card p{margin:11px 0 0;color:var(--muted);font-size:12.5px}.guide-card span,.video-card span{display:block;margin-top:22px;color:var(--blue-600);font-size:11px;font-weight:700}.video-thumb{height:130px;margin:-26px -26px 22px;background:linear-gradient(140deg,#173657,#326da8);display:grid;place-items:center;color:#fff}.play{width:54px;height:54px;border:1px solid rgba(255,255,255,.7);border-radius:50%;display:grid;place-items:center;font-size:18px}.about-grid{display:grid;grid-template-columns:1fr .8fr;gap:72px;align-items:start}.about-grid h2{margin:9px 0 0;color:var(--navy-900);font-size:34px;line-height:1.5}.about-grid p{color:#566472}.about-links{border-top:1px solid var(--line)}.about-links a{display:flex;justify-content:space-between;padding:16px 0;text-decoration:none;border-bottom:1px solid var(--line);font-size:13px;color:var(--navy-700)}footer{padding:52px 0;background:#0c1b32;color:#b3bfd0}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:40px}.footer-brand strong{color:#fff;font-size:18px}.footer-brand p{max-width:560px;margin:12px 0 0;font-size:12px}.footer-nav{display:flex;gap:20px;flex-wrap:wrap}.footer-nav a{color:#d2dae5;text-decoration:none;font-size:12px}.copyright{margin-top:32px;padding-top:18px;border-top:1px solid #263750;font-size:10px;color:#7f8ea4}@media(max-width:980px){.header-inner{grid-template-columns:1fr auto}.main-nav{grid-column:1/-1;justify-content:flex-start;overflow:auto;padding-bottom:12px}.hero-grid{grid-template-columns:1fr}.hero-visual{max-width:650px}.gateway-grid{grid-template-columns:repeat(2,1fr)}.featured-grid,.about-grid{grid-template-columns:1fr}.featured-main{grid-template-columns:1fr}.featured-art{min-height:240px}.theme-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:680px){.container{width:min(100% - 30px,1180px)}.site-header{position:relative}.header-inner{min-height:auto;padding:16px 0}.header-actions{display:none}.main-nav{gap:18px}.brand-logo-full{display:none}.brand-logo-icon{display:block}.hero{padding:52px 0}.hero h1{font-size:36px}.gateway-grid,.theme-grid,.tool-grid,.guide-grid,.video-grid{grid-template-columns:1fr}.gateway a{min-height:auto;border-left:1px solid var(--line)}.section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:27px}.section-head p{margin-top:12px}.featured-copy{padding:28px}.featured-copy h3{font-size:22px}.tool-card{min-height:auto}.footer-grid{grid-template-columns:1fr}}

/* v29: operator profile */
.operator-line{display:flex;align-items:center;gap:14px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.operator-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:var(--navy-900);color:#fff;font-size:13px;font-weight:800;letter-spacing:.08em}
.operator-line strong,.operator-line small{display:block}.operator-line strong{color:var(--navy-900);font-size:15px}.operator-line small{margin-top:3px;color:var(--muted);font-size:10px;letter-spacing:.04em}
.profile-hero{padding:72px 0 60px;background:linear-gradient(180deg,#fff 0%,var(--surface-blue) 100%);border-bottom:1px solid var(--line)}
.profile-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.profile-hero h1{margin:14px 0 0;color:var(--navy-900);font-size:clamp(38px,4vw,54px);line-height:1.32}.profile-lead{margin:21px 0 0;color:#536170;font-size:16px;max-width:690px}.profile-card{background:var(--navy-900);color:#fff;padding:34px;border-top:4px solid var(--gold-500)}.profile-card small{color:var(--gold-200);font-size:10px;letter-spacing:.18em}.profile-card h2{margin:10px 0 0;font-size:25px}.profile-card p{margin:10px 0 0;color:#c5d0df;font-size:12.5px}.profile-card a{display:inline-flex;margin-top:24px;padding:11px 16px;background:#fff;color:var(--navy-900);text-decoration:none;font-size:12px;font-weight:700}.profile-section{padding:72px 0}.profile-section.white{background:#fff}.profile-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}.profile-layout h2{margin:7px 0 0;color:var(--navy-900);font-size:30px}.profile-copy p{margin:0 0 18px;color:#536170}.expertise-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.expertise-list>div{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.expertise-list h3{margin:0;color:var(--navy-900);font-size:17px}.expertise-list p{margin:8px 0 0;color:var(--muted);font-size:12.5px}.policy-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.policy-list li{padding:16px 0;border-bottom:1px solid var(--line);color:#4e5c6a;font-size:13px}.policy-list b{display:block;color:var(--navy-900);margin-bottom:3px}.profile-note{padding:22px;border-left:3px solid var(--gold-500);background:var(--surface-warm);color:#566270;font-size:12.5px}
@media(max-width:850px){.profile-hero-grid,.profile-layout{grid-template-columns:1fr}.expertise-list{grid-template-columns:1fr}}

.section-head p:empty{display:none}.section-head p{max-width:520px}.section-head p:only-child,.section-head p{line-height:1.7}.section-head p{font-size:13px}.section-head p:not(:empty){color:var(--muted)}
.section-head p{align-self:center}.section-head p:not(:empty){font-weight:600}.section-head p:not(:empty):lang(ja){}

/* ===== v57: 調査室 / 実務ツール のメリハリ ===== */
/* 調査室は明るい面、実務ツールは濃紺の面にして、同じ見た目のブロックが
   2つ続く単調さをなくす。あわせて縦の余白とカード高さを詰める。 */
#research.tools-light{background:var(--surface-blue)}
#research.tools-light .section-en{color:var(--gold-500)}
#research.tools-light .section-head h2{color:var(--navy-900)}
#research.tools-light .section-head p{color:var(--muted)}
#research.tools-light .tool-grid{border-top-color:var(--line);border-left-color:var(--line)}
#research.tools-light .tool-card{background:#fff;border-right-color:var(--line);border-bottom-color:var(--line)}
#research.tools-light .tool-card:hover{background:#fbfcfe}
#research.tools-light .tool-card small{color:var(--gold-500)}
#research.tools-light .tool-card h3{color:var(--navy-900)}
#research.tools-light .tool-card p{color:var(--muted)}
#research.tools-light .tool-card dt{color:#8b96a3}
#research.tools-light .tool-card dd{color:var(--navy-700)}

/* 縦の間延びを抑える */
#research.section, #tools.section{padding:60px 0}
#research .section-head, #tools .section-head{margin-bottom:24px}
#research .tool-card, #tools .tool-card{min-height:0;padding:26px 28px}
#research .tool-card h3, #tools .tool-card h3{font-size:20px;margin-top:10px}
#research .tool-card dl, #tools .tool-card dl{margin-top:16px}
#tools.tools .section-head p{color:#c3cfdd}

/* ===== v57: テーマ9枠を市松模様に ===== */
.theme-grid a:nth-child(odd){background:rgba(234,241,248,.7)}
.theme-grid a:nth-child(even){background:#fff}
.theme-grid a{min-height:158px;padding:24px}
.theme-grid h3{font-size:17px}