/* oshite.me 新デザイン（2026-11-08 全体リデザイン。整理ドキュメント https://claude.ai/artifact/CbukcFwZ943PibSeHXUyh2）
   土台＝明るいアイボリー／グレー／ネイビー。濃紺と立体の光沢はトップのヒーローだけ。コーラル・シアン・ブルーは少し。
   文字は少なく大きく、余白多め。Touch Bloom（4枚の花びら）がブランドの基準。 */
:root{
  --iv:#F6F3F1; --iv2:#EEEAE7; --card:#FFFFFF; --ink:#1B2238; --ink2:#4A5168; --mute:#8A90A0; --line:#E4E1DA;
  --navy:#141A2E; --navy2:#1F2742;
  --coral:#FF7A63; --cyan:#3CCFC8; --blue:#6E8BFF; --petal:#F2EFEA;
  --r:22px; --fr:"Zen Kaku Gothic New",system-ui,-apple-system,"Hiragino Sans",sans-serif; --fm:"M PLUS Rounded 1c","Zen Kaku Gothic New",system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--iv);position:relative;isolation:isolate;color:var(--ink);font-family:var(--fr);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit}
/* 11/09 アイコン（Touch Bloom）に合わせた空気：真珠色の地に、コーラル・水色・青のうすい光と、白い光の筋 */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(55% 38% at 100% 0%,#FFD6CB80,transparent 70%),radial-gradient(50% 36% at 0% 100%,#C8F2EE80,transparent 70%),radial-gradient(40% 30% at 0% 35%,#DCE3FF66,transparent 70%),radial-gradient(45% 30% at 100% 80%,#F3DEFF4d,transparent 70%),linear-gradient(180deg,#FBF9F8,#F2EEEB)}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.7;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 800' preserveAspectRatio='none'%3E%3Cpath d='M-20 120C90 60 160 150 260 60S420 0 440 -10' fill='none' stroke='%23fff' stroke-width='1.6' opacity='.9'/%3E%3Cpath d='M-10 150C110 90 170 190 290 90' fill='none' stroke='%23fff' stroke-width='.8' opacity='.7'/%3E%3Cpath d='M180 820C260 700 330 720 420 600' fill='none' stroke='%23fff' stroke-width='1.6' opacity='.9'/%3E%3Cpath d='M220 820C290 730 350 750 430 650' fill='none' stroke='%23fff' stroke-width='.8' opacity='.7'/%3E%3C/svg%3E") center/100% 100% no-repeat}
img{max-width:100%}
.w{width:100%;max-width:1080px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}

/* ヘッダー：小さいマーク＋読みやすい oshite.me */
.om-top{position:sticky;top:0;z-index:20;background:#ffffff8c;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.om-top.on-dark{background:color-mix(in srgb,var(--navy) 70%,transparent);border-color:#ffffff14;color:#fff}
.om-top .w{display:flex;align-items:center;justify-content:space-between;height:60px}
.om-logo{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font:800 19px/1 var(--fm);letter-spacing:.01em}
.om-logo svg{width:30px;height:30px;border-radius:8px;flex:none}
.om-logo .om-lg{height:30px;width:auto;display:block}
.om-logo [data-bloom]{width:30px;height:30px;flex:none;filter:drop-shadow(0 3px 6px #1b223833)}
.om-top nav{display:flex;align-items:center;gap:6px}
.om-top nav a{font-size:14px;text-decoration:none;padding:8px 12px;border-radius:99px}
.om-top nav a.go{background:linear-gradient(180deg,#323C5E,#141A2E);color:#fff;font-weight:700;box-shadow:0 1px 0 #ffffff33 inset,0 4px 12px #1b223833}
.om-top.on-dark nav a.go{background:#fff;color:var(--ink)}

/* ボタン */
.om-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:0 30px;border-radius:99px;border:0;font:700 17px/1 var(--fr);text-decoration:none;cursor:pointer;position:relative;overflow:hidden;background:linear-gradient(180deg,#36416A 0%,#1B2238 55%,#121729 100%);color:#fff;box-shadow:0 1px 0 #ffffff40 inset,0 -1px 0 #00000040 inset,0 10px 26px -8px #1b223866,0 0 0 1px #0d1122;transition:transform .2s,box-shadow .2s;-webkit-tap-highlight-color:transparent}
.om-btn::before{content:"";position:absolute;left:8%;right:8%;top:2px;height:45%;border-radius:99px;background:linear-gradient(180deg,#ffffff38,#ffffff00);pointer-events:none}
.om-btn:hover{transform:translateY(-1px);box-shadow:0 1px 0 #ffffff40 inset,0 14px 30px -8px #6E8BFF88,0 0 0 1px #0d1122}
.om-btn:active{transform:scale(.98)}
.om-btn.light{background:linear-gradient(180deg,#ffffffee,#ffffffa6);color:var(--ink);box-shadow:0 1px 0 #fff inset,0 0 0 1px #ffffffcc inset,0 0 0 1px var(--line),0 8px 20px -8px #1b223833;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.om-btn.light::before{background:linear-gradient(180deg,#ffffffcc,#ffffff00)}
.om-btn.line{background:#06C755;color:#fff}
.om-btn.wide{width:100%}
.om-btn[disabled]{opacity:.5;cursor:default;transform:none}
.om-btn:focus-visible,.om-top a:focus-visible,.om-link:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.om-link{background:none;border:0;padding:8px;font:inherit;font-size:14px;color:var(--ink2);text-decoration:underline;text-underline-offset:3px;cursor:pointer}

/* カード・入力 */
.om-card{background:linear-gradient(160deg,#ffffffe8,#ffffffb8);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:var(--r);box-shadow:0 1px 0 #fff inset,0 0 0 1px #ffffffd0 inset,0 0 0 1px var(--line),0 18px 44px -10px #1b22381f;padding:24px}
.om-k{font:700 12px/1 var(--fr);letter-spacing:.18em;color:var(--mute);text-transform:uppercase;margin:0 0 12px}
.om-h{font-size:clamp(28px,7vw,40px);line-height:1.3;font-weight:900;margin:0 0 12px;text-wrap:balance;letter-spacing:.01em}
.om-s{color:var(--ink2);margin:0 0 24px;font-size:16px}
.om-f{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.om-f>span{font-size:13px;font-weight:700;color:var(--ink2)}
.om-f input,.om-f textarea{font:inherit;font-size:17px;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:#ffffffd9;box-shadow:0 1px 2px #1b22380a inset;color:var(--ink);width:100%}
.om-f input:focus,.om-f textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px #6e8bff22}
.om-f small{color:var(--mute);font-size:13px}
.om-msg{min-height:1.5em;font-size:14px;color:var(--coral);margin:8px 0 0}
.om-msg.ok{color:#2a9d8f}

/* Touch Bloom を背景の光に */
.bloom-glow{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none}

/* フッター */
.om-foot{padding-block:40px 56px;color:var(--mute);font-size:13px}
.om-foot .w{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center}
.om-foot a{text-decoration:none}
.om-foot .c{margin-left:auto}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}