:root{--night:#06131d;--night-deep:#02080d;--blue:#0a2437;--paper:#eeeae1;--paper-deep:#e1dbcf;--ink:#141718;--gold:#ba8734;--gold-light:#d1a65b;--line:rgba(17,23,28,.2);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--night);color:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.page-wrap{width:min(var(--max),calc(100% - 64px));margin:auto}
.serif{font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif}

.lecture-header{position:absolute;z-index:20;top:0;left:0;width:100%;border-bottom:1px solid rgba(255,255,255,.15)}
.lecture-header__inner{height:82px;display:flex;align-items:center;justify-content:space-between}
.lecture-brand{display:flex;align-items:center;gap:13px}
.lecture-brand__logo{width:116px;height:auto;filter:drop-shadow(0 4px 9px rgba(0,0,0,.38))}
.lecture-brand small{font-family:Arial,Helvetica,sans-serif;font-size:7px;font-weight:800;letter-spacing:.24em;color:#aab3b9}
.lecture-back{display:flex;align-items:center;gap:11px;font-family:Arial,Helvetica,sans-serif;font-size:9px;font-weight:800;letter-spacing:.15em;color:#d3d8db;transition:color .2s}
.lecture-back span{color:var(--gold-light);font-size:16px}.lecture-back:hover{color:var(--gold-light)}

.lecture-hero{position:relative;min-height:820px;overflow:hidden;background:var(--night-deep)}
.lecture-hero__media{position:absolute;inset:0 0 0 38%;overflow:hidden}
.lecture-hero__media picture{display:block;width:100%;height:100%}.lecture-hero__media img{width:100%;height:100%;object-fit:cover;object-position:center 42%;filter:saturate(.78) contrast(1.06) brightness(.74)}
.lecture-hero__media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--night-deep) 0%,rgba(2,8,13,.9) 10%,rgba(2,8,13,.27) 45%,rgba(2,8,13,.15) 100%),linear-gradient(0deg,rgba(2,8,13,.72),transparent 42%)}
.lecture-hero__grid{position:relative;z-index:2;min-height:820px;display:grid;grid-template-columns:.76fr 1.24fr;align-items:center;padding-top:82px}
.lecture-hero__copy{padding:54px 0 68px;max-width:590px}
.lecture-eyebrow{display:flex;align-items:center;gap:13px;margin:0 0 25px;font-family:Arial,Helvetica,sans-serif;font-size:9px;font-weight:800;letter-spacing:.28em;color:#aeb8bf}
.lecture-eyebrow:before{content:"";width:38px;height:1px;background:var(--gold)}
.lecture-hero h1{margin:0;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(58px,7vw,92px);font-weight:500;letter-spacing:.08em;line-height:1.07;text-shadow:0 8px 25px rgba(0,0,0,.45)}
.lecture-hero h1 em{font-style:normal;color:var(--gold-light);font-weight:800}
.lecture-hero__lead{margin:27px 0 17px;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(20px,2vw,28px);font-weight:700;letter-spacing:.06em;line-height:1.65}
.lecture-hero__intro{max-width:455px;margin:0;font-size:12px;line-height:2.05;color:#bac3c9}
.lecture-hero__role{display:flex;align-items:center;gap:11px;margin:27px 0 0;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:10px;letter-spacing:.13em;color:#d5d9dc}.lecture-hero__role:before{content:"";width:23px;height:1px;background:var(--gold)}
.lecture-hero__caption{position:absolute;z-index:3;right:32px;bottom:27px;margin:0;font-size:8px;letter-spacing:.14em;color:rgba(255,255,255,.67)}
.lecture-scroll{position:absolute;z-index:3;left:32px;bottom:26px;display:flex;align-items:center;gap:13px;font-family:Arial,Helvetica,sans-serif;font-size:7px;letter-spacing:.25em;color:#8e9aa1;writing-mode:vertical-rl}.lecture-scroll:after{content:"";height:48px;width:1px;background:linear-gradient(var(--gold),transparent)}

.dialogue-origin{position:relative;overflow:hidden;background:var(--paper);color:var(--ink);padding:110px 0 122px}
.dialogue-origin:before{content:"対話";position:absolute;right:-15px;top:20px;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:220px;font-weight:900;line-height:1;color:rgba(48,44,36,.035);letter-spacing:-.08em}
.dialogue-grid{position:relative;display:grid;grid-template-columns:.92fr 1.08fr;gap:95px;align-items:center}
.dialogue-copy{padding-left:54px;border-left:1px solid rgba(149,104,36,.65)}
.chapter-mark{margin:0 0 21px;font-family:Arial,Helvetica,sans-serif;font-size:8px;font-weight:800;letter-spacing:.25em;color:#9c6d28}
.dialogue-copy h2{margin:0 0 31px;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(34px,4vw,55px);font-weight:600;letter-spacing:.045em;line-height:1.48}
.dialogue-copy h2 strong{font-weight:800;color:#895d21}
.dialogue-copy p{margin:0 0 18px;max-width:510px;font-size:12px;line-height:2.15;color:#4c4e4e}
.dialogue-copy__emphasis{margin-top:31px!important;padding-top:21px;border-top:1px solid rgba(32,34,34,.25);font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif!important;font-size:18px!important;line-height:1.8!important;color:#1b1d1d!important}
.dialogue-photo{position:relative;margin:0 0 0 auto;width:100%;max-width:640px;padding:0 0 38px 38px}
.dialogue-photo:before{content:"";position:absolute;left:0;bottom:0;width:72%;height:74%;border:1px solid rgba(150,107,41,.56)}
.dialogue-photo img{position:relative;width:100%;height:auto;box-shadow:0 28px 52px rgba(33,29,22,.2);filter:saturate(.88) contrast(1.02)}

.lecture-chapters{position:relative;padding:112px 0 116px;background:radial-gradient(circle at 82% 14%,rgba(185,135,52,.1),transparent 31%),linear-gradient(145deg,#071a29,#030c13 72%)}
.chapters-head{display:grid;grid-template-columns:.76fr 1.24fr;gap:70px;align-items:end;margin-bottom:58px}
.chapters-head h2{margin:0;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(37px,4.6vw,63px);font-weight:600;letter-spacing:.055em;line-height:1.28}
.chapters-head p{margin:0 0 4px;max-width:530px;font-size:12px;line-height:2.1;color:#aeb9c0}
.chapter-list{border-top:1px solid rgba(205,163,87,.45)}
.chapter-row{display:grid;grid-template-columns:90px 270px 1fr;gap:34px;align-items:center;min-height:132px;border-bottom:1px solid rgba(255,255,255,.13)}
.chapter-row__number{font-family:Georgia,"Times New Roman",serif;font-size:14px;letter-spacing:.16em;color:#b98635}
.chapter-row h3{margin:0;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:24px;font-weight:700;letter-spacing:.08em;color:#f0ede5}
.chapter-row p{margin:0;max-width:590px;font-size:11px;line-height:2;color:#9eabb4}
.theme-line{display:flex;flex-wrap:wrap;gap:0;margin-top:44px;border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}
.theme-line span{flex:1;min-width:180px;padding:18px 22px;border-left:1px solid rgba(255,255,255,.13);font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:11px;letter-spacing:.06em;color:#cbd2d6}.theme-line span:first-child{border-left:0}

.lecture-inquiry{position:relative;overflow:hidden;background:var(--paper);color:var(--ink);padding:112px 0 118px}
.inquiry-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:96px;align-items:start}
.inquiry-copy .chapter-mark{margin-bottom:24px}
.inquiry-copy h2{margin:0 0 26px;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(36px,4.4vw,58px);font-weight:600;line-height:1.45;letter-spacing:.04em}
.inquiry-copy p{margin:0;max-width:570px;font-size:12px;line-height:2.1;color:#565958}
.inquiry-links{padding-top:34px;border-top:1px solid rgba(141,98,34,.58)}
.inquiry-link{display:grid;grid-template-columns:1fr auto;gap:7px 20px;align-items:center;padding:20px 4px;border-bottom:1px solid rgba(20,23,24,.22);transition:padding .2s,color .2s}
.inquiry-link small{grid-column:1;font-family:Arial,Helvetica,sans-serif;font-size:7px;font-weight:800;letter-spacing:.2em;color:#9d712e}.inquiry-link strong{grid-column:1;font-family:"Noto Serif CJK JP","Yu Mincho","Hiragino Mincho ProN",serif;font-size:19px;letter-spacing:.05em}.inquiry-link span{grid-column:2;grid-row:1/3;font-size:21px;color:#a87529;transition:transform .2s}.inquiry-link:hover{padding-left:10px;color:#84591d}.inquiry-link:hover span{transform:translateX(5px)}
.inquiry-note{margin:17px 4px 0!important;font-size:9px!important;line-height:1.8!important;color:#777772!important}

.lecture-footer{background:#02070b;color:#fff;padding:24px 0}
.lecture-footer__inner{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center}.lecture-footer__brand img{width:92px;height:auto}.lecture-footer small{font-family:Arial,Helvetica,sans-serif;font-size:7px;letter-spacing:.18em;color:#74808a}.lecture-footer__back{display:inline-flex;align-items:center;gap:9px;padding:8px 0;font:800 9px/1 Arial,Helvetica,sans-serif;letter-spacing:.18em;color:#b9c0c5;transition:color .2s,transform .2s}.lecture-footer__back span{color:#c99a46;font:400 15px/1 Georgia,serif}.lecture-footer__back:hover{color:#d6aa59;transform:translateX(-3px)}

@media(max-width:980px){
  .page-wrap{width:min(var(--max),calc(100% - 40px))}.lecture-hero__media{inset:0 0 0 25%}.lecture-hero__grid{grid-template-columns:1fr}.lecture-hero__copy{max-width:560px}.dialogue-grid,.chapters-head,.inquiry-grid{grid-template-columns:1fr;gap:50px}.dialogue-copy{padding-left:30px}.dialogue-photo{max-width:720px}.chapter-row{grid-template-columns:60px 220px 1fr;gap:24px}
}
@media(max-width:650px){
  .page-wrap{width:calc(100% - 28px)}.lecture-header__inner{height:70px}.lecture-brand__logo{width:96px}.lecture-brand small{display:none}.lecture-back{font-size:7px}.lecture-hero,.lecture-hero__grid{min-height:720px}.lecture-hero__grid{padding-top:70px;align-items:end}.lecture-hero__media{inset:0}.lecture-hero__media img{object-position:58% center}.lecture-hero__media:after{background:linear-gradient(0deg,rgba(2,8,13,.98) 0%,rgba(2,8,13,.8) 45%,rgba(2,8,13,.2) 78%)}.lecture-hero__copy{padding:230px 0 70px}.lecture-hero h1{font-size:52px}.lecture-hero__lead{font-size:19px}.lecture-hero__intro{font-size:11px}.lecture-hero__caption,.lecture-scroll{display:none}
  .dialogue-origin,.lecture-chapters,.lecture-inquiry{padding:74px 0 78px}.dialogue-origin:before{font-size:125px}.dialogue-copy{padding-left:20px}.dialogue-copy h2{font-size:31px}.dialogue-photo{padding:0 0 24px 20px}.chapters-head{gap:25px;margin-bottom:40px}.chapters-head h2{font-size:36px}.chapter-row{grid-template-columns:38px 1fr;gap:10px 16px;padding:22px 0}.chapter-row h3{font-size:20px}.chapter-row p{grid-column:2}.theme-line{display:grid;grid-template-columns:1fr 1fr}.theme-line span{min-width:0;border-top:1px solid rgba(255,255,255,.12)}.inquiry-grid{gap:46px}.inquiry-copy h2{font-size:33px}.lecture-footer__inner{grid-template-columns:auto 1fr auto;gap:11px}.lecture-footer__brand img{width:76px}.lecture-footer small{display:none}.lecture-footer__back{font-size:8px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.lecture-back,.inquiry-link,.inquiry-link span,.lecture-footer__back{transition:none}}