/* Astera LP — C案「白昼と夜」実装 (docs/DESIGN-HANDOFF/README.md 準拠) */

/* ===== tokens ===== */
:root{
  --paper:#FAF9F6; --ink:#161B2E; --sub:#565E74; --sub2:#6B7288; --ai:#23308F;
  --navy:#1F2C86; --rule:#E8E5DC; --rule2:#E2DFD4; --monogray:#9AA0B0;
  --bf-bg:#F3F1EA; --bf-line:#E2DFD4; --bf-ink:#8A8FA0;
  --night:#0A1128; --npanel:#0C1228; --ncard:#0E1633;
  --nline:#232B4E; --nline2:#2A3364; --nline3:#1E2750;
  --nwhite:#F2F3FA; --nbody:#9BA2C0; --nfaint:#7B84A8; --ndim:#5E6890;
  --nblue:#8B93F8; --nlive:#7681E8; --nbar:#5866E8; --nframe:#3A44A8; --nbtn:#2F3DBB;
  --pass:#57BE8E; --passframe:#2C5A48; --amber:#E6B96E;
  --ambient-night:0; --ambient-intro:0; --ambient-statement-veil:1;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{position:relative;isolation:isolate;background:var(--paper);color:var(--ink);font-family:'Noto Sans JP',sans-serif;font-size:15px;line-height:2;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.serif{font-family:'Zen Old Mincho',serif}
.mono{font-family:'IBM Plex Mono','Noto Sans JP',monospace;font-variant-numeric:tabular-nums}
.wrap{max-width:1296px;margin:0 auto;padding:0 72px}

/* ===== fixed ambient background ===== */
.ambient-bg{display:none;position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;background:var(--paper);opacity:var(--ambient-intro);will-change:opacity}
.ambient-enabled .ambient-bg{display:block}
.ambient-bg__layer{position:absolute;inset:0;will-change:opacity}
.ambient-bg__layer--day{
  opacity:calc(1 - var(--ambient-night));
  background:radial-gradient(80% 65% at 72% 25%,#fff,#ECECF2 70%,var(--paper))
}
.ambient-bg__layer--night{
  opacity:var(--ambient-night);
  background:radial-gradient(75% 65% at 68% 30%,#1B2550,var(--night) 74%)
}
.ambient-bg__video{width:100%;height:100%;object-fit:cover;opacity:1;backface-visibility:hidden}
main,.footer{position:relative;z-index:1}
.day-surface{background:var(--paper)}
.ambient-enabled .day-surface{background:rgba(250,249,246,.62)}
.ambient-enabled #statement{background:rgba(250,249,246,var(--ambient-statement-veil));border-top-color:transparent}

/* ===== nav ===== */
.nav{position:sticky;top:0;z-index:60;background:rgba(250,249,246,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.nav-in{height:88px;display:flex;align-items:center;justify-content:space-between}
.wordmark{font-weight:900;font-size:20px;letter-spacing:7px}
.btn{display:inline-block;border:0;font:inherit;font-weight:700;font-size:14.5px;padding:16px 38px;border-radius:2px;letter-spacing:.04em;text-align:center;cursor:pointer;transition:filter .25s,box-shadow .25s}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{filter:brightness(1.12);box-shadow:0 4px 18px rgba(31,44,134,.25)}
.btn--ghost{background:#fff;border:1px solid #B9B4A6;color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--small{padding:11px 26px;font-size:13px}
.btn--large{padding:19px 56px;font-size:16px}

/* ===== sections common ===== */
.sec{padding:140px 0;border-top:1px solid var(--rule)}
.sec--center{text-align:center}
.label{font-size:11.5px;letter-spacing:4px;color:var(--ai);margin-bottom:20px;font-weight:500}
h2{font-size:50px;font-weight:700;line-height:1.4;letter-spacing:.02em;margin-bottom:18px}
.sub{font-size:15.5px;line-height:2;color:var(--sub);max-width:46em;margin:0 auto}

/* ===== 01 hero ===== */
.hero{position:relative;overflow:hidden;border-top:none;background:var(--paper);isolation:isolate}
.hero-media{position:absolute;inset:0;width:100%;height:100%;background:
  radial-gradient(70% 60% at 70% 30%, rgba(255,255,255,.9), transparent 70%),
  linear-gradient(115deg,#FBFAF7 0%,#F1EDE2 36%,#E9E7EE 64%,#DEDBE8 100%)}
.hero-media::before,.hero-media video{position:absolute;left:0;top:48%;width:100%;height:auto;aspect-ratio:16/9;
  transform:translateY(-50%);
  -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 7%,#000 84%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent 0%,#000 7%,#000 84%,transparent 100%)}
.hero-media::before{content:"";background:url('media/v1-hero-loop-poster.jpg') center/contain no-repeat}
.hero-media video{display:block;object-fit:contain;opacity:0;transition:opacity 1.4s cubic-bezier(.22,1,.36,1)}
.hero-media video.is-playing{opacity:1}
.hero-media::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(250,249,246,.95) 0%,rgba(250,249,246,.93) 30%,rgba(250,249,246,.84) 42%,rgba(250,249,246,.64) 52%,rgba(250,249,246,.32) 61%,rgba(250,249,246,.1) 69%,rgba(250,249,246,0) 75%),
  linear-gradient(180deg,rgba(250,249,246,.35) 0%,rgba(250,249,246,0) 10%,rgba(250,249,246,0) 78%,var(--paper) 100%)}
.hero-inner{position:relative;z-index:1;padding-top:132px;padding-bottom:150px}
.hero-inner>*{max-width:640px}
.badge{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid #DDD9CD;border-radius:999px;padding:8px 20px;font-size:11.5px;letter-spacing:3px;color:var(--sub);margin-bottom:44px}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--ai)}
h1{font-size:84px;font-weight:900;line-height:1.36;letter-spacing:.02em}
.h1-line{display:block}
h1 em,.cta h2 em{font-style:normal;color:var(--ai)}
.hero-en{margin:34px 0 10px;font-size:12px;letter-spacing:5px;color:var(--monogray)}
.hero-sub{font-size:15.5px;color:var(--sub);margin-bottom:42px}
.hero-cta{display:flex;gap:14px}
.scroll-cue{margin-top:96px;display:flex;align-items:center;gap:14px;font-size:10.5px;letter-spacing:4px;color:var(--monogray)}
.scroll-cue i{display:block;width:44px;height:1px;background:#B9B4A6;animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ===== 02 statement ===== */
.vrule{display:block;width:1px;height:56px;background:#C9C4B4;margin:38px auto}
.statement{font-size:24px;line-height:2.3;letter-spacing:.06em;font-weight:700;color:#2A3146}
.statement-close{margin-top:44px;font-size:30px;font-weight:900;color:var(--ai);letter-spacing:.04em}
.statement .st-line{display:inline-block}

/* 1画面を留め、スクロール量に合わせて5行と結論を順に結像 */
.js.statement-scroll #statement{
  height:500vh;height:500svh;padding:0
}
.js.statement-scroll #statement>.wrap{
  position:sticky;top:var(--statement-nav-h,88px);width:100%;
  height:calc(100vh - var(--statement-nav-h,88px));
  height:calc(100svh - var(--statement-nav-h,88px));
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding-top:clamp(20px,3vh,40px);padding-bottom:clamp(20px,3vh,40px)
}
.js.statement-scroll #statement>.wrap>*{flex-shrink:0}
.js.statement-scroll #statement h2{font-size:clamp(36px,5vh,50px)}
.js.statement-scroll #statement .vrule{
  height:clamp(36px,5vh,56px);margin:clamp(18px,3vh,38px) auto
}
.js.statement-scroll #statement .statement{
  width:100%;font-size:clamp(20px,2.5vh,24px);line-height:2.05
}
.js.statement-scroll #statement .statement-close{
  max-width:100%;margin-top:clamp(24px,3.5vh,44px);
  font-size:clamp(23px,3.1vh,30px);line-height:1.7
}
.js.statement-scroll #statement .st-line,
.js.statement-scroll #statement .statement-close{
  opacity:0;transform:translate3d(0,22px,0);filter:blur(4px);
  transition:opacity .16s linear,transform .16s cubic-bezier(.22,1,.36,1),filter .16s ease;
  will-change:opacity,transform,filter
}

/* ===== 03 toc ===== */
.toc{display:grid;grid-template-columns:1fr 1fr 1fr;margin-top:68px;text-align:left}
.toc-col{padding:0 48px}
.toc-col+.toc-col{border-left:1px solid var(--rule)}
.toc-head{font-size:29px;font-weight:700;letter-spacing:.02em}
.toc-en{font-size:10.5px;letter-spacing:3px;color:var(--monogray);margin:8px 0 24px}
.toc-item{border-top:1px solid var(--rule2);padding:17px 0}
.toc-item b{display:block;font-size:16.5px;font-weight:700}
.toc-item p{font-size:13.5px;line-height:1.95;color:var(--sub2);margin-top:4px}

/* ===== 04 before/after ===== */
.ba{max-width:1000px;margin:60px auto 0}
.ba-row{display:grid;grid-template-columns:1fr 64px 1fr;align-items:stretch;margin-bottom:18px;text-align:left}
.ba-row .before{background:var(--bf-bg);border:1px solid var(--bf-line);border-radius:3px;color:var(--bf-ink);padding:19px 24px;font-size:14px;display:flex;align-items:center}
.ba-row .arr{display:flex;align-items:center;justify-content:center;color:var(--ai);font-size:20px}
.ba-row .after{background:#fff;border:1px solid var(--ai);border-radius:3px;box-shadow:0 2px 14px rgba(31,44,134,.08);padding:19px 24px;font-size:17.5px;font-weight:700;display:flex;align-items:center}

/* ===== bands ===== */
.band{height:160px;position:relative;overflow:hidden}
.band--sunset{
  height:clamp(240px,18vw,320px);
  background:linear-gradient(180deg,
    #FAF9F6 0%,#F8F7F4 10%,#EEEDEF 24%,#D9DAE1 38%,
    #B8BCCB 53%,#858DA7 67%,#525D7E 79%,#293557 90%,#0A1128 100%)
}
.band--dawn{background:linear-gradient(180deg,#0A1128 0%,#3E4770 30%,#C0B9AE 68%,#FAF9F6 100%)}
.ambient-enabled .band--sunset{
  background:linear-gradient(180deg,
    rgba(250,249,246,.62) 0%,rgba(248,247,244,.62) 10%,rgba(238,237,239,.61) 24%,rgba(217,218,225,.60) 38%,
    rgba(184,188,203,.59) 53%,rgba(133,141,167,.58) 67%,rgba(82,93,126,.57) 79%,rgba(41,53,87,.56) 90%,rgba(10,17,40,.56) 100%)
}
.ambient-enabled .band--dawn{
  background:linear-gradient(180deg,
    rgba(10,17,40,.56) 0%,rgba(62,71,112,.58) 30%,rgba(192,185,174,.60) 68%,rgba(250,249,246,.62) 100%)
}

/* ===== night ===== */
.night{background:var(--night);color:var(--nwhite)}
.ambient-enabled .night{background:rgba(10,17,40,.56)}
.night .sec{border-top:none}
.night .label{color:var(--nblue)}
.night h2{color:var(--nwhite)}
.night .sub{color:var(--nbody)}

/* 05 agents */
.agents{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:64px 0 0;text-align:left}
.agent{background:var(--ncard);border:1px solid var(--nline);border-radius:6px;padding:30px 26px}
.role{display:inline-block;font-size:11px;letter-spacing:2px;border-radius:999px;padding:4px 12px}
.role--blue{color:var(--nblue);border:1px solid var(--nframe)}
.role--green{color:var(--pass);border:1px solid var(--passframe)}
.agent b{display:block;font-size:24px;font-weight:700;margin:18px 0 10px;color:var(--nwhite)}
.agent p{font-size:13.5px;line-height:1.95;color:var(--nbody)}
.agents-statement{margin-top:84px;font-size:36px;font-weight:700;line-height:2;color:var(--nwhite)}
.agents-sub2{margin-top:14px;font-size:15px;color:var(--nbody)}
.diff{max-width:760px;margin:64px auto 0;background:var(--npanel);border:1px solid var(--nline);border-radius:6px;overflow:hidden;text-align:left;font-size:13px}
.diff-bar{padding:13px 20px;border-bottom:1px solid var(--nline3);font-size:11.5px;letter-spacing:2px;color:var(--nfaint)}
.diff-body{padding:18px 20px;display:flex;flex-direction:column;gap:7px}
.diff .del{color:#E08CA0;background:rgba(216,110,130,.1);padding:4px 12px;border-radius:3px}
.diff .add{color:var(--pass);background:rgba(87,190,142,.1);padding:4px 12px;border-radius:3px}
.diff-note{display:flex;gap:12px;padding:15px 20px;border-top:1px solid var(--nline3);font-size:12.5px;color:var(--nbody)}
.diff-note b{color:var(--nblue);font-weight:600;flex:0 0 auto}

/* 06 interlude */
.interlude{padding:180px 0;text-align:center}
.il-line{font-size:38px;line-height:2.15;font-weight:700;color:#6A7398;letter-spacing:.03em}
.il-line .kw{color:#E9ECFA}
.il-line--white{color:var(--nwhite)}
.interlude p:nth-child(3){margin-top:64px}
.il-close{margin-top:56px;font-size:16px;color:var(--nbody)}

/* 07 screens */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:68px}
.shot{text-align:left}
.mock{height:246px;background:var(--npanel);border:1px solid var(--nline);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.mock--center{align-items:center;justify-content:center}
.mock-bar{padding:11px 15px;border-bottom:1px solid var(--nline3);font-size:10.5px;letter-spacing:2px;color:var(--nfaint);width:100%}
.mock--center .mock-bar{position:absolute}
.mock-log{padding:15px 16px;display:flex;flex-direction:column;gap:10px;font-size:11px;line-height:1.6}
.mock-log time{color:var(--ndim);margin-right:9px}
.mock-log b{color:var(--nblue);font-weight:600;margin-right:9px}
.mock-log span{color:var(--nbody)}
.mock-log .ok{color:var(--pass)}
.mock-diff{padding:15px 16px;display:flex;flex-direction:column;gap:6px;font-size:11px}
.mock-diff .del{color:#E08CA0;background:rgba(216,110,130,.1);padding:3px 9px;border-radius:3px}
.mock-diff .add{color:var(--pass);background:rgba(87,190,142,.1);padding:3px 9px;border-radius:3px}
.mock-note{display:flex;gap:9px;padding:11px 15px;border-top:1px solid var(--nline3);font-size:10.5px;color:var(--nbody);margin-top:auto}
.mock-note b{color:var(--nblue);font-weight:600}
.mock-chat{padding:15px;display:flex;flex-direction:column;gap:10px;font-size:12px;line-height:1.7}
.msg{max-width:88%;padding:9px 13px;border-radius:8px}
.msg--q{align-self:flex-end;background:#131C3C;border:1px solid var(--nline2);color:#C7CCE8}
.msg--a{align-self:flex-start;background:rgba(88,102,232,.1);border:1px solid rgba(88,102,232,.35);color:var(--nbody)}
.msg--a u{display:block;margin-top:7px;text-decoration:none;color:var(--nblue);font-weight:700}
.mock-mx{padding:15px;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:5px;font-size:11px}
.mock-mx span{display:flex;align-items:center;justify-content:center;min-height:24px;border-radius:4px}
.mock-mx .h{color:var(--ndim)}
.mock-mx .nm{justify-content:flex-start;color:#C7CCE8;font-weight:600}
.mock-mx .ok{background:rgba(87,190,142,.12);color:var(--pass)}
.mock-mx .wt{background:rgba(230,185,110,.12);color:var(--amber)}
.mock-chip{align-self:flex-start;margin:4px 15px;background:var(--nbtn);color:#fff;font-size:10.5px;font-weight:700;padding:4px 11px;border-radius:999px}
.mock-dash{padding:16px;display:flex;flex-direction:column;gap:13px;flex:1;justify-content:center}
.kpi{display:flex;justify-content:space-between;font-size:11px;color:var(--nbody);margin-bottom:5px}
.bar{height:6px;background:#131C3C;border-radius:3px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--nbar)}
.phone{width:158px;background:#070D20;border:1px solid var(--nline2);border-radius:18px;padding:12px 10px;display:flex;flex-direction:column;gap:7px}
.ph-h{display:flex;justify-content:space-between;font-size:9px;color:var(--nfaint);padding:0 2px 3px}
.ph-row{background:var(--npanel);border:1px solid var(--nline3);border-radius:7px;padding:7px 9px;font-size:9px;display:flex;justify-content:space-between;align-items:center}
.ph-row b{display:block;font-size:9.5px;color:var(--nwhite)}
.ph-row i{font-style:normal;display:block;font-size:8px;color:var(--ndim)}
.ph-row .ck{color:var(--pass)}
.ph-btn{background:var(--nbtn);border-radius:7px;color:#fff;text-align:center;font-size:9.5px;font-weight:700;padding:7px 0;margin-top:2px}
.shot figcaption{margin-top:18px}
.shot figcaption b{display:block;font-size:17px;font-weight:700;color:var(--nwhite);margin-bottom:5px}
.shot figcaption p{font-size:13px;line-height:1.9;color:var(--nfaint)}
.callout{margin-top:80px;background:#F5F3EC;border-radius:4px;padding:48px 40px;box-shadow:0 16px 44px -20px rgba(0,0,0,.5)}
.callout p{font-family:'Zen Old Mincho',serif;font-size:20px;line-height:2.1;font-weight:700;color:var(--ink);text-align:center}
.shots-note{margin-top:20px;text-align:right;font-size:12px;color:var(--nfaint)}

/* ===== 08 trust ===== */
.trust-grid{display:grid;grid-template-columns:420px 1fr;gap:80px;align-items:start}
.trust-head{position:sticky;top:128px;text-align:left}
.trust-head .sub{margin:0}
.dl{border-bottom:1px solid var(--rule2)}
.dl-row{display:grid;grid-template-columns:250px 1fr;gap:24px;border-top:1px solid var(--rule2);padding:25px 0;text-align:left}
.dl-row b{font-size:19px;font-weight:700}
.dl-row p{font-size:14.5px;line-height:2;color:var(--sub)}

/* ===== 09 start ===== */
.steps{display:grid;grid-template-columns:1fr 1fr 1fr;margin-top:64px;text-align:left}
.step{padding:0 44px}
.step+.step{border-left:1px solid var(--rule)}
.step em{display:block;font-style:normal;font-size:58px;font-weight:900;color:var(--ai);margin-bottom:16px}
.step b{display:block;font-size:20px;font-weight:700;margin-bottom:8px}
.step p{font-size:13.5px;line-height:1.95;color:var(--sub2)}
.promises{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:76px}
.promise{background:#fff;border:1px solid var(--rule2);border-radius:3px;padding:26px 28px;text-align:left}
.promise b{display:block;font-size:16px;font-weight:700;margin-bottom:6px}
.promise p{font-size:13.5px;line-height:1.95;color:var(--sub2)}

/* ===== 10 faq ===== */
.faq{max-width:860px;margin:56px auto 0;border-bottom:1px solid var(--rule2)}
.qa{border-top:1px solid var(--rule2);padding:27px 4px;text-align:left}
.qa b{display:block;font-size:20px;font-weight:700;color:var(--ai);margin-bottom:8px}
.qa p{font-size:14.5px;line-height:2;color:var(--sub)}

/* ===== 11 contact / footer ===== */
.cta{padding:160px 0;text-align:left;background:radial-gradient(62% 74% at 50% 100%, rgba(210,214,236,.55), rgba(210,214,236,0) 72%)}
.ambient-enabled .day-surface.cta{background:radial-gradient(62% 74% at 50% 100%,rgba(210,214,236,.55),rgba(210,214,236,0) 72%),rgba(250,249,246,.62)}
.contact{scroll-margin-top:88px}
.contact-layout{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(64px,8vw,120px);align-items:start}
.contact-copy{position:sticky;top:128px}
.cta h2{font-size:58px;line-height:1.55;font-weight:900;word-break:keep-all}
.cta .sub{margin:20px 0 0;max-width:35em}
.contact-note{max-width:37em;margin-top:24px;padding-top:22px;border-top:1px solid var(--rule2);font-size:13px;line-height:1.9;color:var(--sub2)}
.contact-form{padding:34px;background:rgba(255,255,255,.72);border:1px solid var(--rule2);box-shadow:0 22px 60px -46px rgba(31,44,134,.32);text-align:left}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px 20px}
.form-field{display:flex;min-width:0;flex-direction:column;gap:9px}
.form-field--full{grid-column:1/-1}
.form-field>span{font-size:13px;font-weight:700;letter-spacing:.03em;color:var(--ink)}
.form-field em{display:inline-block;margin-left:7px;padding:2px 6px;background:rgba(35,48,143,.08);color:var(--ai);font-size:10px;font-style:normal;letter-spacing:.08em;vertical-align:2px}
.form-field small{margin-left:7px;color:var(--sub2);font-size:11px;font-weight:500}
.form-field input,.form-field select,.form-field textarea{width:100%;border:1px solid #D8D4C8;border-radius:2px;background:rgba(255,255,255,.82);color:var(--ink);font:inherit;font-size:16px;line-height:1.65;padding:13px 14px;transition:border-color .2s,box-shadow .2s,background-color .2s}
.form-field select{min-height:54px}
.form-field textarea{min-height:180px;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:#969289}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--ai);background:#fff;box-shadow:0 0 0 3px rgba(35,48,143,.1)}
.form-privacy{margin-top:22px;font-size:12.5px;line-height:1.85;color:var(--sub2)}
.form-actions{display:flex;align-items:center;gap:22px;margin-top:24px}
.form-actions .btn{flex:1;min-height:56px;padding-left:22px;padding-right:22px}
.form-mail-link{flex:none;font-size:12.5px;color:var(--sub);text-decoration:underline;text-decoration-color:#B9B4A6;text-underline-offset:5px}
.form-mail-link:hover{color:var(--ai);text-decoration-color:var(--ai)}
.form-status{min-height:1.8em;margin-top:12px;font-size:12.5px;color:var(--ai)}
.footer{border-top:1px solid var(--rule)}
.footer-in{padding:36px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-mark{font-size:14px;font-weight:900;letter-spacing:6px;color:#8A8FA0}
.footer-meta{font-size:12.5px;color:var(--sub2)}
.footer-meta a{text-decoration:underline}

/* ===== animations (A1-A9) ===== */
.js .h1-line{opacity:0;transform:translateY(12px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.js .h1-line.in{opacity:1;transform:none}
.js .log-line{opacity:0;transition:opacity .35s ease}
.js .log-line.in{opacity:1}
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.rv.in{opacity:1;transform:none}
.js .ba-row .before,.js .ba-row .arr,.js .ba-row .after{opacity:0;transition:opacity .6s ease,transform .6s cubic-bezier(.22,1,.36,1)}
.js .ba-row .after{transform:translateY(8px)}
.js .ba-row.in .before{opacity:1}
.js .ba-row.in .arr{opacity:1;transition-delay:.16s}
.js .ba-row.in .after{opacity:1;transform:none;transition-delay:.32s}
.js .il-line,.js .il-close{opacity:0;transform:translateY(10px);transition:opacity .9s ease,transform .9s cubic-bezier(.22,1,.36,1)}
.js .il-line.in,.js .il-close.in{opacity:1;transform:none}
.js .il-line .kw{transition:color .8s ease .4s}
.js .shot .mock{opacity:0;filter:brightness(.72);transition:opacity .7s ease,filter .9s ease}
.js .shot.in .mock{opacity:1;filter:none}
@media (prefers-reduced-motion: reduce){
  .ambient-bg{display:none!important}
  .js .h1-line,.js .log-line,.rv,.js .ba-row .before,.js .ba-row .arr,.js .ba-row .after,.js .il-line,.js .il-close,.js .shot .mock{opacity:1;transform:none;filter:none;transition:none}
  .js.statement-scroll #statement{height:auto;padding:140px 0}
  .js.statement-scroll #statement>.wrap{position:static;height:auto;display:block}
  .js.statement-scroll #statement .st-line,
  .js.statement-scroll #statement .statement-close{opacity:1!important;transform:none!important;filter:none!important;transition:none!important}
  .live i{animation:none}
}

/* ===== responsive (1440→1024縮小・以下は簡易) ===== */
@media (max-width:1200px){
  h1{font-size:64px}
  h2{font-size:40px}
  .wrap{padding:0 44px}
  .hero-media::after{background:
    linear-gradient(90deg,rgba(250,249,246,.96) 0%,rgba(250,249,246,.94) 36%,rgba(250,249,246,.84) 50%,rgba(250,249,246,.62) 62%,rgba(250,249,246,.28) 72%,rgba(250,249,246,0) 82%),
    linear-gradient(180deg,rgba(250,249,246,.35) 0%,rgba(250,249,246,0) 10%,rgba(250,249,246,0) 78%,var(--paper) 100%)}
  .agents{grid-template-columns:1fr 1fr}
  .shots{grid-template-columns:1fr 1fr}
  .il-line{font-size:29px}
  .cta h2{font-size:48px}
}
@media (max-width:900px){
  .wrap{padding-right:clamp(24px,6vw,44px);padding-left:clamp(24px,6vw,44px)}
  .nav-in{height:76px}
  .sec{padding:104px 0}
  .ambient-bg{display:none!important}
  .hero-media{opacity:.45}
  .hero-media::before,.hero-media video{inset:0;width:100%;height:100%;aspect-ratio:auto;transform:none;-webkit-mask-image:none;mask-image:none}
  .hero-media::before{background-position:58% center;background-size:cover}
  .hero-media video{display:none}
  .hero-media::after{background:linear-gradient(90deg,rgba(250,249,246,.96),rgba(250,249,246,.83) 68%,rgba(250,249,246,.72)),linear-gradient(180deg,rgba(250,249,246,.2),var(--paper))}
  .hero-inner{padding-top:104px;padding-bottom:112px}
  .hero-inner>*{max-width:620px}
  .toc{grid-template-columns:1fr}
  .toc{margin-top:48px}
  .toc-col{padding:24px 0;border-left:none!important}
  .ba-row{grid-template-columns:1fr;gap:8px}
  .ba-row .arr{justify-content:flex-start;padding-left:6px}
  .statement .st-line{display:inline}
  .statement{font-size:21px;line-height:2.05;letter-spacing:.035em}
  .statement-close{font-size:25px;line-height:1.8}
  .band--sunset{height:190px}
  .band--dawn{height:120px}
  .trust-grid{grid-template-columns:1fr;gap:36px}
  .trust-head{position:static}
  .steps{grid-template-columns:1fr}
  .step{padding:22px 0;border-left:none!important}
  .promises{grid-template-columns:1fr}
  .shots{grid-template-columns:1fr}
  .agents{grid-template-columns:1fr}
  .diff-note{flex-direction:column}
  .interlude{padding:124px 0}
  .dl-row{grid-template-columns:1fr;gap:6px}
  h1{font-size:46px}
  .contact-layout{grid-template-columns:1fr;gap:52px}
  .contact-copy{position:static}
  .contact-copy .sub,.contact-note{max-width:44em}
  .contact-form{max-width:720px}
  .footer-in{align-items:flex-start}
}
@media (max-width:600px){
  body{font-size:14.5px;line-height:1.9}
  .wrap{padding-right:22px;padding-left:22px}
  .nav-in{height:70px}
  .wordmark{font-size:17px;letter-spacing:5px}
  .btn--small{padding:10px 14px;font-size:12px}
  .sec{padding:78px 0}
  .label{font-size:10.5px;letter-spacing:2.6px;margin-bottom:15px}
  h2{font-size:32px;line-height:1.5}
  .sub{font-size:14px;line-height:1.95}
  .hero-inner{padding-top:80px;padding-bottom:92px}
  .badge{gap:7px;margin-bottom:32px;padding:7px 12px;font-size:10px;letter-spacing:1.6px}
  h1{font-size:40px;line-height:1.42}
  .hero-en{margin-top:28px;font-size:10.5px;letter-spacing:3.5px}
  .hero-sub{font-size:14.5px;line-height:1.95;margin-bottom:34px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .scroll-cue{margin-top:62px}
  .statement{font-size:18px;line-height:2;letter-spacing:.025em}
  .statement-close{margin-top:34px;font-size:22px;line-height:1.8}
  .vrule{height:40px;margin:28px auto}
  .toc{margin-top:34px}
  .toc-head{font-size:25px}
  .toc-item b{font-size:15.5px}
  .toc-item p{font-size:13px}
  .ba{margin-top:42px}
  .ba-row{margin-bottom:24px}
  .ba-row .before,.ba-row .after{padding:17px 18px}
  .band--sunset{height:150px}
  .band--dawn{height:96px}
  .agent{padding:26px 22px}
  .agents-statement{margin-top:62px;font-size:24px;line-height:1.9}
  .interlude{padding:92px 0}
  .il-line{font-size:23px;line-height:1.95}
  .interlude p:nth-child(3){margin-top:46px}
  .il-close{margin-top:42px}
  .diff{margin-top:48px}
  .diff-body,.diff-note{padding-right:16px;padding-left:16px}
  .diff .del,.diff .add{overflow-wrap:anywhere}
  .shots{margin-top:46px}
  .mock{height:auto;min-height:232px}
  .mock-log div{display:grid;grid-template-columns:auto auto minmax(0,1fr);align-items:start}
  .mock-log span,.mock-note span{min-width:0;overflow-wrap:anywhere}
  .mock-note{flex-direction:column}
  .callout{margin-top:56px;padding:30px 22px}
  .callout p{font-size:17px;line-height:1.95}
  .trust-grid{gap:30px}
  .dl-row{padding:21px 0}
  .dl-row b{font-size:17px}
  .dl-row p{font-size:13.5px}
  .steps{margin-top:42px}
  .step em{font-size:46px}
  .promises{margin-top:52px}
  .promise{padding:23px 21px}
  .faq{margin-top:38px}
  .qa{padding:23px 2px}
  .qa b{font-size:18px}
  .qa p{font-size:13.5px}
  .cta{padding:88px 0}
  .contact{scroll-margin-top:70px}
  .contact-layout{gap:38px}
  .cta h2{font-size:38px;line-height:1.55}
  .contact-note{margin-top:20px;padding-top:18px}
  .contact-form{padding:24px 20px}
  .form-grid{grid-template-columns:1fr;gap:20px}
  .form-field--full{grid-column:auto}
  .form-field input,.form-field select,.form-field textarea{font-size:16px}
  .form-field textarea{min-height:168px}
  .form-actions{flex-direction:column;align-items:stretch;gap:17px}
  .form-actions .btn{width:100%;font-size:13.5px}
  .form-mail-link{text-align:center}
  .footer-in{flex-direction:column;gap:8px;padding:28px 22px}
  .footer-meta{line-height:1.8;overflow-wrap:anywhere}
}
@media (max-width:370px){
  .wrap{padding-right:18px;padding-left:18px}
  .wordmark{font-size:16px;letter-spacing:4px}
  .btn--small{padding-right:11px;padding-left:11px;font-size:11.5px}
  h1{font-size:36px}
  .badge{font-size:9.5px;letter-spacing:1.25px}
  .hero-en{letter-spacing:3px}
  .cta h2{font-size:34px}
  .contact-form{padding-right:16px;padding-left:16px}
  .footer-in{padding-right:18px;padding-left:18px}
}