/* ============================================================
   Investor AI — 法務・サポートページ共通スタイル
   トップLP（明朝×硬派）と同じデザイン言語。base.html / _footer.html 用。
   ============================================================ */
:root{
  --paper:#f5f3ec; --paper-2:#efece1; --ink:#121d18; --ink-2:#33423c;
  --muted:#6f7d76; --line:#dcd7c8; --line-2:#cbc6b6;
  --green:#008b8b; --green-d:#006d6b; --green-ink:#0a4a45;
  --dark:#0c1512; --dark-2:#111e19; --dark-line:#26332d;
  --on-dark:#ece9dd; --on-dark-mut:#93a29a; --green-br:#1fb9a9;
  --danger:#b3453a;
  --serif:"Hiragino Mincho ProN","Hiragino Mincho Pro","Yu Mincho","YuMincho","Noto Serif JP",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic UI","Meiryo",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--green-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,p,ul,ol,figure,table{margin:0}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(245,243,236,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.site-header__inner{max-width:1180px;margin:0 auto;padding:0 26px;height:66px;display:flex;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:baseline;gap:9px;font-family:var(--serif);font-size:19px;letter-spacing:.06em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand__dot{width:7px;height:7px;border-radius:50%;background:var(--green);align-self:center}
.brand b{font-weight:600}
.brand-back{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted)}
.brand-back:hover{color:var(--green-d);text-decoration:none}

/* layout */
.page{padding:clamp(40px,6vw,72px) 0 clamp(56px,8vw,96px)}
.container{max-width:800px;margin:0 auto;padding:0 26px}

.breadcrumb{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);margin-bottom:34px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green-d)}
.breadcrumb__sep{margin:0 8px;opacity:.6}

/* document */
.legal-doc__title{font-family:var(--serif);font-weight:600;font-size:clamp(1.8rem,4.2vw,2.6rem);line-height:1.4;letter-spacing:.01em;text-wrap:balance}
.legal-doc__title::before{content:"";display:block;width:34px;height:2px;background:var(--green);margin-bottom:22px}
.legal-doc__meta{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);margin-top:16px}
.legal-doc__lead{color:var(--ink-2);font-size:15.5px;line-height:2;margin-top:26px;padding-bottom:8px}
.legal-doc__sign{margin-top:40px;text-align:right;color:var(--ink-2);font-size:14px;line-height:1.9}

/* sections */
.legal-section{margin-top:44px}
.legal-section h2{font-family:var(--serif);font-weight:600;font-size:clamp(1.25rem,2.6vw,1.55rem);line-height:1.5;padding-top:26px;border-top:1px solid var(--line);display:flex;align-items:baseline;gap:12px}
.legal-section h2::before{content:"";flex:none;width:8px;height:8px;margin-top:2px;background:var(--green);border-radius:1px}
.legal-section > p{margin-top:16px;color:var(--ink-2);font-size:15px}
.legal-section h3{font-family:var(--serif);font-weight:600;font-size:1.1rem;margin-top:26px}

/* lists */
.legal-ol,.legal-list{margin-top:16px;padding-left:1.35em;color:var(--ink-2);font-size:15px}
.legal-ol{list-style:decimal}
.legal-list{list-style:disc}
.legal-ol li,.legal-list li{margin:9px 0;padding-left:.2em}
.legal-ol li::marker{color:var(--green-d);font-family:var(--mono)}
.legal-list li::marker{color:var(--green)}

/* emphasis & note */
.legal-emphasis{margin-top:18px;background:rgba(0,139,139,.06);border:1px solid rgba(0,139,139,.22);border-left:3px solid var(--green);border-radius:3px;padding:16px 20px;color:var(--green-ink);font-size:14.5px;line-height:1.95}
.legal-note{margin-top:16px;color:var(--muted);font-size:13px;line-height:1.85}

/* definition table (特商法) */
.legal-table{width:100%;border-collapse:collapse;margin-top:26px;font-size:14.5px}
.legal-table th,.legal-table td{border:1px solid var(--line);padding:14px 16px;text-align:left;vertical-align:top;line-height:1.8}
.legal-table--definition th{width:34%;background:var(--paper-2);font-weight:600;color:var(--green-ink);font-family:var(--sans)}
.legal-table--definition td{background:#fff;color:var(--ink-2)}
.legal-table--definition td b{color:var(--ink);font-weight:700}
.legal-sub{display:inline-block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.8}
@media(max-width:640px){
  .legal-table--definition,.legal-table--definition tbody,.legal-table--definition tr,.legal-table--definition th,.legal-table--definition td{display:block;width:auto}
  .legal-table--definition tr{margin-top:-1px}
  .legal-table--definition th{border-bottom:0}
}

/* FAQ (support) */
.faq{border-bottom:1px solid var(--line)}
.faq:first-of-type{border-top:1px solid var(--line)}
.faq > summary{cursor:pointer;list-style:none;font-weight:600;font-size:15.5px;color:var(--ink);padding:20px 40px 20px 0;position:relative}
.faq > summary::-webkit-details-marker{display:none}
.faq > summary::after{content:"＋";position:absolute;right:2px;top:20px;color:var(--green-d);font-weight:400;font-size:18px}
.faq[open] > summary::after{content:"−"}
.faq__body{padding:0 0 22px;color:var(--ink-2);font-size:14.5px}
.faq__body p{margin-top:12px}
.faq__body p:first-child{margin-top:0}

/* CTA button */
.cta-wrap{margin-top:26px}
.cta-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sans);font-weight:700;font-size:14px;letter-spacing:.06em;background:var(--green);color:#fff;border:1px solid transparent;border-radius:3px;padding:15px 28px;cursor:pointer;transition:background .18s}
.cta-button:hover{background:var(--green-d);text-decoration:none}
.cta-button--full{display:flex;width:100%;padding:17px 28px;font-size:15px;margin-top:8px}

/* contact form */
.contact-form{margin-top:30px}
.form-row{margin-top:22px}
.form-label{display:block;font-weight:600;font-size:14px;color:var(--ink);margin-bottom:9px}
.form-required{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:#fff;background:var(--green);border-radius:2px;padding:2px 7px;margin-left:6px;vertical-align:middle}
.contact-form input:not([type=checkbox]),.contact-form select,.contact-form textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:3px;padding:13px 15px;transition:border-color .18s,box-shadow .18s}
.contact-form textarea{min-height:170px;resize:vertical;line-height:1.8}
.contact-form input:focus,.contact-form select,.contact-form textarea:focus{outline:none}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(0,139,139,.14)}
.form-hint{margin-top:8px;font-size:12px;color:var(--muted)}
.form-error{margin-top:8px;font-size:13px;color:var(--danger)}
.form-alert{margin-top:24px;background:rgba(179,69,58,.08);border:1px solid rgba(179,69,58,.3);border-radius:3px;padding:14px 18px;color:var(--danger);font-size:14px}
.form-row--check{margin-top:26px}
.form-check{display:flex;align-items:flex-start;gap:11px;font-size:14px;color:var(--ink-2);line-height:1.7;cursor:pointer}
.form-check input[type=checkbox]{width:19px;height:19px;margin-top:3px;flex:none;accent-color:var(--green)}
/* honeypot（人間には非表示） */
.hp-wrap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* contact done */
.done-box{text-align:center;padding:20px 0 10px}
.done-box__icon{width:66px;height:66px;margin:0 auto 24px;border-radius:50%;background:rgba(0,139,139,.1);border:1px solid rgba(0,139,139,.3);color:var(--green);display:grid;place-items:center;font-size:30px;font-weight:700}
.done-box .legal-doc__title::before{margin-left:auto;margin-right:auto}
.done-box > p{margin-top:18px;color:var(--ink-2);font-size:15px}
.done-box .cta-wrap{display:flex;justify-content:center}

/* 体験版申込アンケート（trial） */
.survey-form{margin-top:30px}
.survey-form .form-row{margin-top:24px}
.req-mark{color:var(--danger);font-weight:700;margin-right:5px}

/* 会員ログインフォーム（login） */
.auth-form{margin-top:30px;max-width:420px}
.auth-form .form-row{margin-top:22px}
.auth-form input{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:3px;padding:13px 15px;letter-spacing:.08em;transition:border-color .18s,box-shadow .18s}
.auth-form input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(0,139,139,.14)}
.auth-form .cta-button--full{margin-top:28px}
.survey-form input[type=text],.survey-form input[type=tel],.survey-form select{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:3px;padding:13px 15px;transition:border-color .18s,box-shadow .18s}
.survey-form select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px}
.survey-form input:focus,.survey-form select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(0,139,139,.14)}
.seg{display:flex;gap:10px;flex-wrap:wrap}
.seg__btn{position:relative}
.seg__btn input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0}
.seg__btn span{display:inline-flex;align-items:center;justify-content:center;min-width:112px;padding:12px 18px;border:1px solid var(--line-2);border-radius:3px;font-size:14px;color:var(--ink-2);cursor:pointer;transition:border-color .18s,background .18s,color .18s}
.seg__btn input:checked + span{border-color:var(--green);background:rgba(0,139,139,.08);color:var(--green-ink);font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{position:relative}
.chip input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0}
.chip span{display:inline-flex;align-items:center;padding:10px 16px;border:1px solid var(--line-2);border-radius:3px;font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:border-color .18s,background .18s,color .18s}
.chip input:checked + span{border-color:var(--green);background:rgba(0,139,139,.1);color:var(--green-ink);font-weight:600}
.survey-form .cta-button--full{margin-top:34px}

/* 完了ページ：メール受信のご案内ボックス */
.mail-notice{border:1px solid var(--green);border-radius:4px;overflow:hidden;margin-top:10px}
.mail-notice__head{background:var(--green);color:#fff;text-align:center;font-weight:700;padding:13px;letter-spacing:.06em}
.mail-notice__body{padding:26px 22px;text-align:center}
.mail-notice__body > p{margin-top:14px;color:var(--ink-2);font-size:14.5px;line-height:1.9}
.mail-notice__body > p:first-child{margin-top:0}
.mail-notice__subject{background:rgba(0,139,139,.08);border:1px solid rgba(0,139,139,.25);border-radius:3px;padding:15px;color:var(--green-ink);font-weight:700;font-size:15px}
.mail-notice .legal-note{text-align:center}

/* disclaimer */
.disclaimer{margin-top:48px;background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:22px 24px}
.disclaimer__title{font-weight:700;font-size:13px;letter-spacing:.04em;color:var(--ink);margin-bottom:10px}
.disclaimer ul{list-style:none;margin:0;padding:0}
.disclaimer li{position:relative;padding-left:18px;color:var(--muted);font-size:13px;line-height:1.9}
.disclaimer li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;background:var(--green);border-radius:50%}

/* footer */
.site-footer{background:var(--dark-2);color:var(--on-dark-mut);border-top:1px solid var(--dark-line);margin-top:0}
.site-footer__inner{max-width:1180px;margin:0 auto;padding:0 26px}
.site-footer > .site-footer__inner:first-child{display:flex;justify-content:space-between;gap:34px;flex-wrap:wrap;padding-top:56px;padding-bottom:40px}
.site-footer__brand .brand{color:var(--on-dark)}
.site-footer__brand .brand__dot{background:var(--green-br)}
.site-footer__brand p{margin-top:16px;font-size:13px;line-height:1.9;max-width:340px}
.footer-nav{display:flex;flex-direction:column;gap:12px}
.footer-nav h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--green-br);text-transform:uppercase;margin-bottom:6px}
.footer-nav a{font-size:13.5px;color:var(--on-dark-mut)}
.footer-nav a:hover{color:var(--on-dark);text-decoration:none}
.site-footer__bottom{border-top:1px solid var(--dark-line);padding-top:22px;padding-bottom:34px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-note{font-size:12px;color:#6f7c74;line-height:1.8;max-width:640px}
.footer-copy{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:#5f6c64;white-space:nowrap}