/*
Theme Name: Attorium Professional
Version: 3.0.0
Description: アットリウム公式サイト — 現場から発信まで。
Author: Attorium
Text Domain: attorium-pro
*/
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Noto+Sans+JP:wght@400;500;600;700&family=Noto+Serif+JP:wght@400;500;600&display=swap');
:root{--paper:#f8f7f3;--white:#fff;--ink:#252b28;--muted:#72766f;--green:#263a34;--gold:#9b8054;--line:#dcded6;--serif:'Noto Serif JP',serif;--sans:'DM Sans','Noto Sans JP',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;color:var(--ink);background:var(--paper);font:400 15px/1.95 var(--sans);-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:var(--serif);font-weight:500;letter-spacing:.02em}h2{font-size:clamp(30px,3vw,44px);line-height:1.65}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer}img{display:block;max-width:100%;height:auto}a,button{transition:color .2s,background .2s,border-color .2s,transform .2s}a:hover{color:var(--gold)}:focus-visible{outline:2px solid var(--gold);outline-offset:5px}[hidden]{display:none!important}.wrap{width:min(1200px,86%);margin-inline:auto}.section{padding:115px 0}.eyebrow{font:500 11px/1.6 var(--sans);letter-spacing:.15em;color:var(--gold);margin-bottom:30px}.muted{color:var(--muted)}.site-header{position:sticky;top:0;z-index:30;background:#f8f7f3f7;border-bottom:1px solid #dedfd850;backdrop-filter:blur(15px)}.admin-bar .site-header{top:32px}.header-inner{width:min(1320px,91%);margin:auto;height:98px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;gap:12px;align-items:center;font:500 30px/1 var(--sans);letter-spacing:-.06em}.brand-mark{width:34px;color:var(--gold)}.brand-mark svg{display:block}.brand-dot{color:var(--gold)}.brand small{display:block;font:400 9px/1 var(--sans);letter-spacing:.24em;margin-top:8px}.desktop-nav{display:flex;align-items:center;gap:32px;font-size:12px;font-weight:500;letter-spacing:.03em}.nav-contact{padding:14px 25px;border:1px solid #a7afa4;display:flex;align-items:center;gap:28px}.nav-contact:hover{background:var(--green);border-color:var(--green);color:white}.nav-contact span{font-size:19px}.hero{display:grid;grid-template-columns:49% 51%;min-height:620px;max-width:1600px;margin:auto}.hero-copy{padding:75px 11% 28px 14.3%;display:flex;flex-direction:column;align-items:flex-start}.hero-copy .eyebrow{font-size:10px;display:flex;align-items:center;gap:13px;letter-spacing:.12em;white-space:nowrap}.hero-copy .eyebrow>span{display:block;width:23px;height:1px;background:var(--gold)}.hero h1{font-size:clamp(40px,4.05vw,65px);line-height:1.7;letter-spacing:0;white-space:nowrap}.serif-accent{color:var(--green)}.hero-lead{font-size:14px;line-height:2.2;margin:26px 0 34px;color:#687167}.button{min-height:54px;display:inline-flex;align-items:center;justify-content:space-between;gap:40px;padding:14px 26px;font-size:12px;font-weight:500;letter-spacing:.04em;border:1px solid transparent}.button span{font-size:20px;line-height:1}.button-dark{background:var(--green);color:white}.button-dark:hover{background:#3f5145;color:#fff}.button-light{border-color:#91a197;color:white;background:none}.button-light:hover{background:#f8f7f3;color:var(--green)}.hero-foot{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:auto;padding-top:45px;font-size:8px;letter-spacing:.08em;color:#83887d;gap:15px}.hero-foot a{white-space:nowrap}.hero-image{position:relative;overflow:hidden;min-height:620px}.hero-image img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:52% 50%}.hero-image:after{content:'';position:absolute;inset:45% 0 0;background:linear-gradient(transparent,#18241f68)}.image-word{position:absolute;bottom:56px;left:48px;color:#fff;z-index:1;font:400 clamp(28px,3.2vw,48px)/1.18 var(--serif);letter-spacing:-.045em}.hero-image figcaption{position:absolute;right:16px;bottom:15px;color:#ffffffb0;z-index:2;font-size:9px;letter-spacing:.06em}.service-rail{border-bottom:1px solid var(--line);background:#eeeee7}.service-rail>.wrap{display:grid;grid-template-columns:repeat(4,1fr)}.service-rail a{display:flex;align-items:center;gap:15px;padding:25px 20px;font-size:12px;white-space:nowrap;border-left:1px solid var(--line)}.service-rail a:last-child{border-right:1px solid var(--line)}.service-rail a>span:first-child{font-size:10px;color:var(--gold)}.service-rail a>span:last-child{margin-left:auto;font-size:17px}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%}.about-copy .large-copy{font-family:var(--serif);font-size:23px;color:var(--ink);margin:2px 0 27px;line-height:1.9}.about-copy>p{font-size:14px;color:var(--muted);line-height:2.2;margin-top:17px}.text-link{display:inline-flex;gap:35px;align-items:center;border-bottom:1px solid #b1b9ab;padding-bottom:8px;font-size:12px;margin-top:28px}.text-link span{font-size:20px}.services{background:#eeeee8}.section-head{display:flex;justify-content:space-between;gap:45px;align-items:flex-end;margin-bottom:55px}.section-head>p{font-size:13px;color:var(--muted);padding-bottom:10px;line-height:2}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.service-card{background:var(--paper);padding:30px 27px;display:flex;flex-direction:column;scroll-margin-top:120px}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.service-number{font:400 31px/1 var(--serif);color:#a3a995}.card-top svg{width:42px;height:42px;color:var(--green)}.service-english{font-size:8px;letter-spacing:.11em;color:var(--gold);margin-bottom:8px;white-space:nowrap}.service-card h3{font-weight:600;font-size:17px;letter-spacing:-.035em;white-space:nowrap}.service-headline{font-family:var(--serif);font-size:21px;line-height:1.8;margin:26px 0 18px}.service-description{font-size:12px;line-height:2.1;color:var(--muted);min-height:130px}.service-card ul{list-style:none;margin:24px 0 28px;padding:18px 0 0;border-top:1px solid var(--line)}.service-card li{font-size:10px;line-height:1.8;padding:5px 0 5px 12px;position:relative}.service-card li:before{content:'';position:absolute;width:4px;height:4px;background:var(--gold);left:0;top:12px;border-radius:50%}.service-link{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:11px}.service-link span{font-size:20px}.approach{background:var(--green);color:#fff;position:relative;overflow:hidden}.approach-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%}.approach .eyebrow{color:#c3b18b}.approach-intro>p:not(.eyebrow){font-size:13px;color:#bdc7bd;line-height:2.2;margin:24px 0 32px}.process-word{display:block;color:#809386;opacity:.32;font:400 47px/1.2 var(--serif);letter-spacing:-.04em;margin-top:60px}.steps{list-style:none;margin:0;padding:0}.steps li{display:flex;gap:28px;padding:30px 0;border-top:1px solid #ffffff30}.steps li:last-child{border-bottom:1px solid #ffffff30}.steps li>span{font:400 16px/2 var(--serif);color:#d2bd91}.steps h3{font-weight:500;font-size:19px;letter-spacing:.06em;margin-bottom:12px}.steps p{font-size:13px;color:#bdc7bd;line-height:2}.split{display:grid;grid-template-columns:1fr 1.3fr;gap:12%}.questions details{border-top:1px solid var(--line)}.questions details:last-child{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;font-size:13px;padding:24px 0}summary::-webkit-details-marker{display:none}summary span{font:400 23px var(--sans);color:var(--gold)}details[open] summary span{transform:rotate(45deg)}details p{color:var(--muted);font-size:13px;line-height:2;padding-bottom:25px}.profile{padding-top:0}.profile dl{margin:0}.profile dl>div{display:grid;grid-template-columns:110px 1fr;padding:20px 0;border-top:1px solid var(--line);font-size:13px;gap:20px}.profile dl>div:last-child{border-bottom:1px solid var(--line)}.profile dt{color:var(--muted)}.profile dd{margin:0}.profile dd a span{margin-left:15px}.contact{background:#e8ebe3}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%}.contact h2{font-size:clamp(38px,4vw,56px)}.contact-intro{font-size:13px;color:var(--muted);line-height:2.2;margin:28px 0 35px}.contact-email{font-size:21px;font-weight:500;letter-spacing:-.03em;border-bottom:1px solid #a6b09d;padding-bottom:12px;display:inline-flex;gap:25px}.contact-caption{font-size:11px;color:var(--muted);margin-top:22px;line-height:2.1}.contact-form label{display:block;font-size:12px;margin-bottom:20px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.required,.optional{font-size:9px;color:var(--muted);margin-left:10px}.required{color:#7c6b48}.contact-form input,.contact-form textarea,.contact-form select{display:block;width:100%;border:1px solid #cbd1c5;background:#f9faf6;color:var(--ink);padding:13px 14px;border-radius:0;font-size:13px;margin-top:8px}.contact-form textarea{resize:vertical;line-height:1.8}.contact-form input::placeholder,.contact-form textarea::placeholder{color:#8c9387}.contact-form label:has(textarea){margin-bottom:5px}.character-count{text-align:right;color:var(--muted);font-size:10px}.form-actions{display:flex;align-items:center;gap:24px;margin-top:22px;flex-wrap:wrap}.copy-button{background:none;border:0;border-bottom:1px solid #a5ad9f;padding:5px 0;font-size:10px;color:#5e695a}.form-note{font-size:10px;color:var(--muted);line-height:2;margin-top:22px}.form-note a{text-decoration:underline;text-underline-offset:3px}.form-notice{padding:14px;border:1px solid #a5b098;font-size:12px;margin-top:20px}.footer{padding:55px 0 20px}.footer-main{display:flex;align-items:center;justify-content:space-between;gap:40px}.footer-main p{font-size:11px;color:var(--muted);line-height:1.9}.back-top{font-size:9px;letter-spacing:.1em}.footer-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);color:#7b8177;font-size:10px}.footer-bottom small{font-size:10px}.skip-link{position:absolute;top:-100px;z-index:50}.skip-link:focus{top:10px;left:10px;background:white;padding:12px}.menu-toggle{display:none}.mobile-nav{padding:15px 7% 30px}.mobile-nav a{display:block;padding:13px 0;font-size:13px}.document h1{font-size:36px}.document-content{max-width:850px;line-height:2.2;margin-top:40px}.document-content p{margin:15px 0}.document-content h2{font-size:24px;margin-top:40px}
.works{background:var(--paper)}.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px 36px}.work-card{display:block}.work-screen{background:#e9ebe5;padding:22px 22px 0;overflow:hidden;border:1px solid #d9ded3}.work-screen img{width:100%;aspect-ratio:1.55;object-fit:cover;object-position:top;box-shadow:0 4px 20px #15251b14;transition:transform .5s}.work-card:hover img{transform:translateY(-5px)}.work-info{padding-top:20px;display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.work-info .category{font-size:9px;letter-spacing:.11em;color:var(--gold);margin-bottom:6px}.work-info h3{font-size:20px;font-weight:500}.work-info p{font-size:12px;color:var(--muted);margin-top:8px}.work-info>.work-arrow{border:1px solid #bdc6b6;border-radius:50%;width:38px;height:38px;display:grid;place-items:center;font-size:19px;flex:none;margin-top:6px}.work-domain{font-size:10px;color:#8a9183;display:block;margin-top:8px}
@media(min-width:1601px){.hero-copy{padding-left:110px}}@media(max-width:1200px){.wrap{width:88%}.desktop-nav{gap:20px}.hero-copy{padding-left:12%;padding-right:8%;padding-top:65px}.hero{min-height:580px}.hero-image{min-height:580px}.hero h1{font-size:46px}.hero-copy .eyebrow{font-size:8px}.hero-foot>span{font-size:7px}.service-rail a{padding:22px 14px;font-size:11px;gap:10px}.service-card{padding:25px 20px}.service-card h3{font-size:15px}.service-headline{font-size:19px}.service-description{font-size:11px;min-height:145px}.service-card li{font-size:9px}.service-link{font-size:10px}.section{padding:90px 0}.profile{padding-top:0}}
@media(max-width:980px){.header-inner{height:82px}.brand{font-size:27px}.desktop-nav{gap:16px;font-size:10px}.nav-contact{padding:11px 15px;gap:18px}.hero h1{font-size:37px}.hero-copy{padding-top:55px}.hero-copy .eyebrow{letter-spacing:.06em}.hero-copy .eyebrow>span{width:15px}.hero-lead{font-size:12px}.hero-image,.hero{min-height:520px}.hero-foot>span{display:none}.hero-foot{padding-top:35px}.image-word{font-size:31px;left:30px;bottom:45px}.service-grid{grid-template-columns:1fr 1fr;gap:1px}.service-card{padding:32px}.service-card h3{font-size:20px}.service-headline{font-size:24px}.service-description{font-size:13px;min-height:80px}.service-card li{font-size:11px}.service-link{font-size:12px}.service-english{font-size:10px}.service-rail a{font-size:10px;padding:20px 10px;gap:7px}.about-grid,.approach-grid,.contact-grid,.split{gap:8%}.about-copy .large-copy{font-size:20px}.contact-email{font-size:19px}.profile dl>div{grid-template-columns:85px 1fr}.work-info h3{font-size:18px}}
@media(max-width:760px){html{scroll-padding-top:85px}.header-inner{height:76px;width:88%}.brand{font-size:27px}.brand small{font-size:8px}.brand-mark{width:30px}.desktop-nav{display:none}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:7px;background:none;border:0;padding:12px;width:45px;height:45px}.menu-toggle span{display:block;height:1px;width:23px;background:var(--green)}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}.mobile-nav .nav-contact{padding:12px 18px;margin-top:10px;display:flex}.hero{grid-template-columns:1fr;min-height:auto}.hero-copy{padding:46px 7% 35px}.hero-copy .eyebrow{font-size:9px;letter-spacing:.1em;margin-bottom:26px}.hero h1{font-size:clamp(36px,8.5vw,56px);line-height:1.65}.hero-lead{font-size:13px;margin:24px 0 28px}.hero-foot{display:none}.hero-image{min-height:350px;height:350px;margin-left:7%}.hero-image img{object-position:50% 54%}.image-word{left:28px;bottom:35px;font-size:32px}.service-rail>.wrap{width:100%;grid-template-columns:1fr 1fr}.service-rail a{font-size:11px;padding:18px 20px;border-bottom:1px solid var(--line);border-left:0;border-right:1px solid var(--line)}.service-rail a:last-child{border-right:0}.section{padding:70px 0}.eyebrow{font-size:10px;margin-bottom:22px}h2{font-size:29px}.about-grid,.approach-grid,.contact-grid,.split{grid-template-columns:1fr;gap:35px}.about-copy .large-copy{font-size:21px;margin-bottom:23px}.about-copy>p{font-size:13px}.section-head{display:block;margin-bottom:32px}.section-head>p{margin-top:22px;font-size:12px}.service-card{padding:27px 22px}.service-card h3{font-size:16px;white-space:normal}.service-headline{font-size:19px;margin-top:20px}.service-description{font-size:12px;min-height:0}.service-card li{font-size:10px}.service-link{font-size:10px;gap:8px}.service-number{font-size:26px}.card-top{margin-bottom:26px}.card-top svg{width:35px;height:35px}.service-english{font-size:8px}.approach-intro>p:not(.eyebrow){font-size:12px}.process-word{display:none}.steps li{padding:24px 0}.steps h3{font-size:18px}.steps p{font-size:12px}.faq .split{gap:20px}summary{font-size:12px;gap:15px}details p{font-size:12px}.profile{padding-top:0}.profile dl>div{font-size:12px;gap:15px;grid-template-columns:83px 1fr}.contact h2{font-size:39px}.contact-intro{font-size:12px}.contact-grid{gap:40px}.contact-caption{font-size:10px}.contact-email{font-size:22px}.fields{gap:15px}.contact-form input,.contact-form textarea,.contact-form select{font-size:16px}.contact-form label{font-size:11px}.form-actions{gap:18px}.form-actions .button{gap:25px}.footer-main{flex-wrap:wrap;gap:25px}.footer-main p{order:3;width:100%;font-size:10px}.footer-bottom{margin-top:25px;font-size:9px}.footer{padding-top:40px}.work-grid{gap:35px 20px}.work-screen{padding:12px 12px 0}.work-info{gap:12px}.work-info h3{font-size:16px}.work-info p{font-size:11px}.work-info>.work-arrow{width:28px;height:28px;font-size:16px}.work-domain{font-size:9px}.document h1{font-size:28px}}
@media(max-width:480px){.service-grid{grid-template-columns:1fr}.service-card{padding:30px}.service-card h3{font-size:21px}.service-headline{font-size:23px}.service-description{font-size:13px}.service-card li{font-size:12px}.service-link{font-size:12px}.service-english{font-size:9px}.service-card ul{margin-bottom:22px}.card-top{margin-bottom:20px}.work-grid{grid-template-columns:1fr;gap:35px}.work-screen{padding:17px 17px 0}.work-info h3{font-size:20px}.work-info p{font-size:12px}.hero-image{height:310px;min-height:310px}.hero-copy .eyebrow{font-size:8px}.contact-form .fields{grid-template-columns:1fr;gap:0}.form-actions .button{width:100%}.copy-button{margin-left:auto}.hero h1{font-size:36px}}
.logo-screen{padding:0;background:#fff;aspect-ratio:1.55;display:grid;place-items:center}.logo-screen img{width:68%;height:100%;aspect-ratio:1;object-fit:contain;box-shadow:none}.experience{background:#eeeee8}.experience-main{display:grid;grid-template-columns:1fr 2fr;gap:55px;border-top:1px solid #bbc4b5;padding:40px 0}.case-label{font-size:9px;letter-spacing:.14em;color:var(--gold)}.experience h3{font:500 28px/1.8 var(--serif);margin:10px 0}.experience-title p{font-size:12px;color:var(--muted);line-height:2}.experience-copy>p{font-size:14px;line-height:2.1;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:35px}.metrics>div{border-left:1px solid #c7cec0;padding-left:22px}.metrics>div>span{font-size:11px;color:#6c7565;display:block}.metrics strong{display:block;font:400 45px/1.4 var(--sans);letter-spacing:-.05em;color:var(--green);white-space:nowrap}.metrics strong span{font-size:17px;margin-left:5px;letter-spacing:0}.metrics small{display:block;font-size:9px;color:var(--muted);margin-top:8px}.experience-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}.experience-tags span{border:1px solid #c6cdbf;padding:4px 10px;font-size:10px;color:#66715f}.event-case{border-top:1px solid #bbc4b5;border-bottom:1px solid #bbc4b5;padding:30px 0;display:grid;grid-template-columns:1fr 1.5fr .5fr;gap:55px;align-items:center}.event-case p{font-size:13px;line-height:2;color:var(--muted)}.event-number{text-align:center}.event-number strong{display:block;font:400 52px/1.2 var(--sans);color:var(--green)}.event-number strong span{font-size:18px;margin-left:8px}.event-number>span{font-size:10px;color:var(--muted)}.experience-note{display:flex;gap:20px;align-items:center;justify-content:space-between;margin-top:23px;font-size:10px;color:var(--muted)}.experience-note a{white-space:nowrap;border-bottom:1px solid #b3bcaa}.desktop-nav{gap:23px}.desktop-nav>a{white-space:nowrap}.desktop-nav{font-size:11px}.service-rail{border-top:1px solid var(--line)}
@media(max-width:1100px){.desktop-nav{gap:15px;font-size:10px}.nav-contact{padding-inline:15px;gap:15px}.experience-main{grid-template-columns:1fr 2fr;gap:35px}.metrics{gap:12px}.metrics>div{padding-left:13px}.metrics strong{font-size:36px}.metrics strong span{font-size:13px}.event-case{gap:35px}.experience h3{font-size:25px}}
@media(max-width:980px){.desktop-nav{gap:12px;font-size:9px}.header-inner{gap:20px}.nav-contact{padding-inline:12px;gap:10px}.metrics{gap:10px}.metrics>div{padding-left:10px}.metrics strong{font-size:30px}.metrics strong span{font-size:11px}.experience-main{gap:30px}.experience-note{align-items:flex-start}.logo-screen img{width:70%}}
@media(max-width:760px){.experience-main{grid-template-columns:1fr;gap:25px;padding:30px 0}.experience-copy>p{font-size:13px}.experience h3{font-size:26px}.metrics strong{font-size:32px}.metrics{gap:12px;margin-top:28px}.metrics>div{padding-left:10px}.metrics small{font-size:8px}.metrics>div>span{font-size:10px}.experience-tags{margin-top:25px}.event-case{grid-template-columns:1fr auto;gap:18px 25px;align-items:start}.event-case p{grid-column:1 / -1;grid-row:2;font-size:12px}.event-number{padding-top:8px}.event-number strong{font-size:42px}.experience-note{display:block;font-size:9px}.experience-note a{display:inline-block;margin-top:15px}.metrics strong span{font-size:11px;margin-left:3px}.metrics strong{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.brand img{width:190px;height:auto}.brand{flex:none}@media(max-width:980px){.brand img{width:165px}}@media(max-width:760px){.brand img{width:168px}}
:root{--gold:#80683e;--muted:#5d655b}@media(min-width:761px){.mobile-nav{display:none!important}}@media(max-width:360px){.metrics{grid-template-columns:1fr;gap:20px}.metrics strong{font-size:39px}.metrics strong span{font-size:16px}.metrics small{font-size:10px}.metrics>div>span{font-size:11px}}
@media(max-width:380px){.service-rail>.wrap{grid-template-columns:1fr}.service-rail a{border-left:0;border-bottom:1px solid var(--line);padding:13px 0}.service-rail a:last-child{border-right:0;border-bottom:0}}