/* =========================================================
   絶対音感能力検定（APT）　共通デザイン
   ・紺（信頼）× 象牙色（紙）× 金（格式）× 朱（印）
   ========================================================= */
/* 白を基調にした、大人のおしゃれ。墨色の文字と、シャンパンゴールドを少しだけ */
:root {
  --navy: #1f2430;      /* 墨（見出し・大事なボタン） */
  --navy-2: #2c3240;
  --navy-3: #3d4556;
  --ink: #23262d;
  --ink-2: #5d626d;
  --ink-3: #969aa3;
  --paper: #ffffff;     /* 白 */
  --paper-2: #f7f6f3;   /* ごく淡い生成り */
  --line: #e9e6df;
  --gold: #b0915a;      /* シャンパンゴールド */
  --gold-2: #cdb486;
  --gold-soft: #f4eee2;
  --red: #a8323a;
  --ok: #3d7a5c;
  --ng: #b0444b;
  --radius: 2px;
  --shadow: 0 30px 60px -40px rgba(31, 36, 48, .35);
  --serif: "Noto Serif JP", "Noto Serif SC", "Hiragino Mincho ProN", "Songti SC", Georgia, serif;
  --sans: "Noto Sans JP", "Noto Sans SC", "Hiragino Sans", "PingFang SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Cormorant Garamond", "Noto Serif JP", Georgia, serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.85; letter-spacing: .02em; font-size: 16px; min-height: 100vh; display: flex; flex-direction: column; }
:lang(zh) body, body:lang(zh) { letter-spacing: .03em; }
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--navy-3); }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.wrap { width: min(1120px, 100% - 32px); margin: 0 auto; }
.narrow { width: min(780px, 100% - 32px); margin: 0 auto; }
main { flex: 1; }

/* ---------- ヘッダー ---------- */
.site-header { position: sticky; top: 0; z-index: 60; background: rgba(250, 248, 243, .94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 18px; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--navy); flex-shrink: 0; }
.logo svg { width: 38px; height: 38px; }
.logo b { display: block; font-family: var(--serif); font-weight: 600; font-size: 1.02rem; letter-spacing: .12em; line-height: 1.2; }
.logo small { display: block; font-family: var(--display); font-size: .74rem; letter-spacing: .14em; color: var(--gold); line-height: 1.2; }
.gnav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.gnav a { text-decoration: none; color: var(--ink-2); font-size: .82rem; padding: 8px 10px; border-radius: var(--radius); white-space: nowrap; letter-spacing: .04em; }
.gnav a:hover, .gnav a[aria-current] { color: var(--navy); background: var(--paper-2); }
.gnav a.cta { background: var(--navy); color: #fff; padding: 8px 16px; margin-left: 6px; }
.gnav a.cta:hover { background: var(--navy-3); }
.lang-select { margin-left: 8px; position: relative; }
.lang-select select { appearance: none; -webkit-appearance: none; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2312203a'/%3E%3C/svg%3E") no-repeat right 10px center; border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 28px 6px 10px; font-size: .8rem; cursor: pointer; color: var(--navy); }
.menu-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 12px; font-size: .8rem; cursor: pointer; }
@media (max-width: 1080px) {
  .menu-toggle { display: block; }
  .gnav { position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); padding: 10px 16px 18px; gap: 0; display: none; max-height: calc(100vh - 68px); overflow-y: auto; }
  .gnav.open { display: flex; }
  .gnav a { padding: 12px 8px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: .92rem; }
  .gnav a.cta { margin: 12px 0 0; text-align: center; border-radius: var(--radius); }
  .lang-select { margin: 12px 0 0; }
  .lang-select select { width: 100%; }
}

/* ---------- 見出し・本文 ---------- */
.eyebrow { font-family: var(--display); letter-spacing: .32em; text-transform: uppercase; font-size: .78rem; color: var(--gold); margin: 0 0 10px; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; color: var(--navy); line-height: 1.45; letter-spacing: .06em; }
.page-head { padding: 72px 0 40px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #fff, var(--paper)); }
.page-head h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); margin: 0; }
.page-head p.lead { color: var(--ink-2); max-width: 46em; margin: 16px 0 0; }
.section { padding: 80px 0; }
.section.alt { background: var(--paper-2); }
.section.dark { background: var(--navy); color: #e8ecf4; }
.section.dark h2, .section.dark h3 { color: #fff; }
.sec-title { text-align: center; margin-bottom: 44px; }
.sec-title h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin: 0; }
.sec-title p { color: var(--ink-2); margin: 10px auto 0; max-width: 40em; }
.section.dark .sec-title p { color: #b7c1d6; }
.rule { width: 46px; height: 2px; background: var(--gold); margin: 16px auto 0; }

/* ---------- ボタン ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 28px; border-radius: var(--radius); border: 1px solid var(--navy); background: var(--navy); color: #fff; text-decoration: none; font-size: .95rem; letter-spacing: .08em; cursor: pointer; transition: background .2s, transform .2s, box-shadow .2s; }
.btn:hover { background: var(--navy-3); box-shadow: var(--shadow); }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: var(--paper-2); }
.btn.gold { background: var(--gold); border-color: var(--gold); }
.btn.gold:hover { background: #8f6f30; }
.btn.small { padding: 9px 16px; font-size: .84rem; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; box-shadow: none; }
.section.dark .btn.ghost { color: #fff; border-color: rgba(255, 255, 255, .5); }
.section.dark .btn.ghost:hover { background: rgba(255, 255, 255, .08); }
.text-link { background: none; border: none; color: var(--navy-3); text-decoration: underline; text-underline-offset: 4px; cursor: pointer; font-size: .88rem; padding: 0; }

/* ---------- カード・表 ---------- */
.grid { display: grid; gap: 20px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.c4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; box-shadow: 0 1px 0 rgba(18, 32, 58, .03); }
.card h3 { margin: 0 0 8px; font-size: 1.12rem; }
.card p { color: var(--ink-2); margin: 0; font-size: .92rem; }
a.card { display: block; text-decoration: none; color: inherit; transition: border-color .2s, transform .2s, box-shadow .2s; }
a.card:hover { border-color: var(--gold-2); transform: translateY(-3px); box-shadow: var(--shadow); }
.card .num { font-family: var(--display); font-size: 2rem; color: var(--gold); line-height: 1; margin-bottom: 10px; }
.tag { display: inline-block; font-size: .72rem; letter-spacing: .1em; padding: 2px 10px; border-radius: 20px; background: var(--gold-soft); color: #7a5f27; }
.tag.navy { background: #e3e9f4; color: var(--navy-2); }
.tag.red { background: #f6e1e2; color: var(--red); }
table.tbl { width: 100%; border-collapse: collapse; background: #fff; font-size: .9rem; }
.tbl th, .tbl td { padding: 14px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.tbl thead th { background: var(--navy); color: #fff; font-weight: 500; font-size: .82rem; letter-spacing: .08em; }
.tbl tbody tr:hover { background: #fdfbf6; }
.tbl .lv { font-family: var(--serif); font-weight: 600; color: var(--navy); white-space: nowrap; }
.tbl .price { white-space: nowrap; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.notice { background: #fff8e8; border: 1px solid #ecd9a8; border-radius: var(--radius); padding: 14px 18px; font-size: .86rem; color: #6b5420; }
.notice.navy { background: #eef2f9; border-color: #cfd9ea; color: var(--navy-2); }
.muted { color: var(--ink-3); }
.small { font-size: .82rem; }
.center { text-align: center; }

/* ---------- フォーム ---------- */
.field { display: block; margin: 0 0 18px; }
.field > span { display: block; font-size: .84rem; color: var(--ink-2); margin-bottom: 6px; letter-spacing: .04em; }
.field input[type=text], .field input[type=email], .field input[type=password], .field input[type=number], .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; font: inherit; color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--gold-2); outline-offset: 1px; border-color: var(--gold-2); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; margin: 10px 0; cursor: pointer; }
.check input { margin-top: 6px; accent-color: var(--navy); }
.err { color: var(--ng); font-size: .82rem; min-height: 1.2em; margin: 4px 0 0; }

/* ---------- ステップ表示 ---------- */
.steps { display: flex; gap: 0; margin: 0 0 34px; counter-reset: st; flex-wrap: wrap; }
.steps li { list-style: none; flex: 1; min-width: 120px; position: relative; padding: 0 8px 12px; font-size: .78rem; color: var(--ink-3); border-bottom: 3px solid var(--line); text-align: center; }
.steps li::before { counter-increment: st; content: counter(st); display: block; width: 26px; height: 26px; line-height: 26px; margin: 0 auto 6px; border-radius: 50%; background: var(--line); color: #fff; font-size: .78rem; }
.steps li.on { color: var(--navy); border-color: var(--navy); }
.steps li.on::before { background: var(--navy); }
.steps li.done { color: var(--ink-2); border-color: var(--gold-2); }
.steps li.done::before { background: var(--gold-2); content: "✓"; }
.steps-wrap { padding: 0; margin: 0 0 34px; }

/* ---------- 出題の画面 ---------- */
.quiz { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 30px; box-shadow: var(--shadow); }
.q-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.q-head .q-lv { font-family: var(--serif); font-weight: 600; color: var(--navy); }
.q-head .q-no { font-family: var(--display); font-size: 1.2rem; color: var(--gold); letter-spacing: .1em; }
.q-timer { height: 4px; background: var(--paper-2); border-radius: 4px; margin: 14px 0 0; overflow: hidden; }
.q-timer i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--gold-2), var(--gold)); transform-origin: left; }
.q-stage { text-align: center; padding: 30px 0 18px; }
.listen { position: relative; width: 112px; height: 112px; border-radius: 50%; border: 2px solid var(--navy); background: radial-gradient(circle at 50% 35%, #fff, #eef1f7); cursor: pointer; display: inline-grid; place-items: center; transition: transform .2s; }
.listen:hover { transform: scale(1.04); }
.listen:disabled { opacity: .5; cursor: default; transform: none; }
.listen svg { width: 44px; height: 44px; }
.listen .ring { position: absolute; inset: -2px; border-radius: 50%; border: 2px solid var(--gold-2); opacity: 0; }
.listen.play .ring { animation: ring 1.4s ease-out; }
.listen.play .r2 { animation-delay: .3s; }
@keyframes ring { from { opacity: .9; transform: scale(1); } to { opacity: 0; transform: scale(1.6); } }
.q-ask { font-family: var(--serif); font-size: 1.12rem; color: var(--navy); margin: 18px 0 4px; }
.q-sub { font-size: .8rem; color: var(--ink-3); margin: 0; }
.answers { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.ans-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.ans-row h4 { width: 100%; text-align: center; margin: 4px 0 0; font-size: .74rem; font-family: var(--sans); font-weight: 500; letter-spacing: .2em; color: var(--gold); }
.ans { min-width: 62px; padding: 12px 10px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; cursor: pointer; font-size: 1rem; line-height: 1.2; transition: background .15s, border-color .15s, color .15s; }
.ans small { display: block; font-size: .66rem; color: var(--ink-3); margin-top: 3px; }
.ans.blk { background: #f3f4f7; }
.ans:hover { border-color: var(--navy-3); }
.ans[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.ans[aria-pressed="true"] small { color: #c9d2e3; }
.ans.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.ans.ng { background: var(--ng); border-color: var(--ng); color: #fff; }
.answers.lock .ans { pointer-events: none; }
.seq-view { display: flex; justify-content: center; gap: 6px; min-height: 40px; flex-wrap: wrap; }
.seq-view span { min-width: 44px; padding: 8px 10px; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; font-size: .95rem; }
.seq-view span.fill { border-style: solid; border-color: var(--navy); color: var(--navy); }
.q-actions { text-align: center; margin-top: 18px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.q-feedback { text-align: center; min-height: 1.8em; margin: 14px 0 0; font-weight: 500; }
.q-feedback.ok { color: var(--ok); } .q-feedback.ng { color: var(--ng); }

/* ---------- 鍵盤の形の答えボタン ---------- */
.kb { position: relative; display: grid; grid-template-columns: repeat(7, 1fr); width: min(560px, 100%); margin: 6px auto 0; height: 190px; user-select: none; -webkit-user-select: none; }
.kb-key { border-radius: 0 0 6px 6px; padding: 0 0 10px; min-width: 0; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 2px; font-size: .92rem; transition: background .12s, transform .08s; }
.kb-key small { margin: 0; font-size: .62rem; }
.kb-w { height: 100%; background: linear-gradient(180deg, #fff 70%, #f4f2ee); border: 1px solid #d9d5cc; margin-right: -1px; color: var(--ink); box-shadow: inset 0 -4px 0 #ebe7df; }
.kb-b { position: absolute; top: 0; height: 60%; width: calc(100% / 7 * .62); left: calc(100% / 7 * (var(--i) + 1) - 100% / 7 * .31); z-index: 2; background: linear-gradient(180deg, #2b2f38, #14161b); border: 1px solid #0d0e11; color: #e9e7e2; box-shadow: 0 4px 6px -2px rgba(0, 0, 0, .35); font-size: .76rem; }
.kb-b small { color: #9aa0ab; }
.kb-key:active { transform: translateY(2px); }
.kb-w:hover:not(:disabled) { background: linear-gradient(180deg, #fff 55%, var(--gold-soft)); }
.kb-b:hover:not(:disabled) { background: linear-gradient(180deg, #3a3f4b, #1c1f26); }
.kb-key:disabled { cursor: default; }
.kb-w:disabled { background: #f6f5f2; color: #c9c6be; }
.kb-b:disabled { background: #6b6f78; color: transparent; border-color: #5a5e66; }
.kb-b:disabled small { color: transparent; }
.kb-key[aria-pressed="true"] { background: var(--gold) !important; color: #fff !important; border-color: var(--gold) !important; }
.kb-key[aria-pressed="true"] small { color: #fff8e8 !important; }
.kb-key.ok { background: var(--ok) !important; color: #fff !important; border-color: var(--ok) !important; }
.kb-key.ng { background: var(--ng) !important; color: #fff !important; border-color: var(--ng) !important; }
@media (max-width: 600px) { .kb { height: 160px; } .kb-key { font-size: .78rem; } .kb-b { font-size: .64rem; } .kb-key small { font-size: .54rem; } }

/* ---------- フッター ---------- */
.site-footer { background: var(--paper-2); color: var(--ink-2); padding: 64px 0 30px; font-size: .84rem; margin-top: 0; border-top: 1px solid var(--line); }
.site-footer .cols { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr 1fr; } }
.site-footer h4 { color: var(--navy); font-size: .74rem; letter-spacing: .22em; margin: 0 0 14px; font-family: var(--sans); font-weight: 500; text-transform: uppercase; }
.site-footer a { color: var(--ink-2); text-decoration: none; display: block; padding: 4px 0; }
.site-footer a:hover { color: var(--gold); }
.site-footer .copy { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .74rem; color: var(--ink-3); }

/* ---------- 試作の表示 ---------- */
.proto { position: fixed; left: 12px; bottom: 12px; z-index: 80; background: var(--red); color: #fff; font-size: .72rem; padding: 4px 10px; border-radius: 3px; letter-spacing: .1em; opacity: .9; }

/* ---------- 便利 ---------- */
.mt0 { margin-top: 0; } .mt1 { margin-top: 12px; } .mt2 { margin-top: 24px; } .mt3 { margin-top: 40px; }
.flex { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.flex.center { justify-content: center; }
.kbd-note { font-family: var(--display); }
@media (max-width: 600px) { .section { padding: 56px 0; } .quiz { padding: 24px 16px; } .ans { min-width: 50px; padding: 10px 6px; font-size: .92rem; } .page-head { padding: 48px 0 28px; } }

/* =========================================================
   トップページ・共通の部品（白を基調に、余白と細い線で上品に）
   ========================================================= */
body { font-weight: 400; }
h1, h2, h3 { font-weight: 500; }
.hero { position: relative; overflow: hidden; padding: 110px 0 120px; border-bottom: 1px solid var(--line); background: #fff; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }
@media (max-width: 900px) { .hero { padding: 70px 0 80px; } .hero .wrap { grid-template-columns: 1fr; } }
.hero .kicker { font-family: var(--display); letter-spacing: .38em; font-size: .78rem; color: var(--gold); margin: 0 0 22px; }
.hero h1 { font-size: clamp(2.2rem, 5.4vw, 4rem); font-weight: 500; line-height: 1.32; letter-spacing: .08em; margin: 0; color: var(--navy); }
.hero .lead { color: var(--ink-2); margin: 26px 0 36px; max-width: 34em; font-size: 1rem; line-height: 2.05; }
.hero .note { font-size: .78rem; color: var(--ink-3); margin: 14px 0 0; letter-spacing: .06em; }
.hero-card { background: rgba(255, 255, 255, .86); border: 1px solid var(--line); padding: 34px 32px; backdrop-filter: blur(4px); box-shadow: var(--shadow); }
.hero-card .seal { display: flex; align-items: center; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.hero-card .seal b { font-family: var(--serif); font-weight: 500; font-size: 1.05rem; color: var(--navy); letter-spacing: .1em; display: block; }
.hero-card .seal small { font-family: var(--display); color: var(--gold); letter-spacing: .2em; font-size: .72rem; }
.hero-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 10px 18px; font-size: .86rem; }
.hero-card dt { color: var(--ink-3); letter-spacing: .08em; }
.hero-card dd { margin: 0; color: var(--ink); font-family: var(--serif); }
.hero-card .big { font-size: 1.9rem; letter-spacing: .1em; color: var(--navy); }

.lead-p { color: var(--ink-2); line-height: 2.1; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: start; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; gap: 24px; } }
.about-grid h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0; line-height: 1.6; }
.type-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 26px; }
.type-cards div { background: #fff; padding: 26px 24px; }
.type-cards b { display: block; font-family: var(--serif); font-weight: 500; color: var(--navy); margin-bottom: 6px; letter-spacing: .06em; }
.type-cards span { font-size: .86rem; color: var(--ink-2); }
.type-cards i { display: block; font-style: normal; font-family: var(--display); color: var(--gold); font-size: 1.5rem; line-height: 1; margin-bottom: 12px; }

/* 機能（数字つき） */
.feat { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 40px 34px; }
.feat div { border-top: 1px solid var(--navy); padding-top: 22px; }
.feat i { font-style: normal; font-family: var(--display); color: var(--gold); letter-spacing: .2em; font-size: .8rem; }
.feat b { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.15rem; color: var(--navy); margin: 8px 0 8px; letter-spacing: .06em; }
.feat span { color: var(--ink-2); font-size: .9rem; }

/* 音色カード */
.versions { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
@media (max-width: 1000px) { .versions { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); } }
.ver { position: relative; background: #fff; border: 1px solid var(--line); padding: 26px 22px 22px; cursor: pointer; text-align: left; transition: border-color .25s, box-shadow .25s, transform .25s; }
.ver:hover { border-color: var(--gold-2); box-shadow: var(--shadow); transform: translateY(-2px); }
.ver svg { width: 40px; height: 40px; margin-bottom: 16px; }
.ver b { display: block; font-family: var(--serif); font-weight: 500; color: var(--navy); font-size: 1.05rem; letter-spacing: .06em; }
.ver span { display: block; font-size: .8rem; color: var(--ink-2); margin-top: 6px; line-height: 1.75; }
.ver em { position: absolute; top: 20px; right: 18px; font-style: normal; font-size: .68rem; letter-spacing: .14em; color: var(--gold); border: 1px solid var(--gold-2); border-radius: 20px; padding: 2px 9px; }
.ver.playing { border-color: var(--gold); }
.ver.playing em { background: var(--gold); color: #fff; }

/* 階段（15ステップ） */
.stairs { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: end; }
@media (max-width: 900px) { .stairs { grid-template-columns: 1fr; } }
.stair-bars { display: flex; align-items: flex-end; gap: 6px; height: 340px; padding: 0 0 34px; position: relative; border-bottom: 1px solid var(--line); }
.stair-bars button { flex: 1; position: relative; border: none; padding: 0; cursor: pointer; background: linear-gradient(180deg, #ece8df, #f7f5f0); height: calc(18% + var(--i) * 5.6%); transition: background .2s, transform .2s; border-radius: 1px 1px 0 0; }
.stair-bars button.dan { background: linear-gradient(180deg, #d9d2c3, #efeae0); }
.stair-bars button:hover, .stair-bars button[aria-pressed="true"] { background: linear-gradient(180deg, var(--gold-2), var(--gold)); transform: translateY(-3px); }
.stair-bars button span { position: absolute; left: 50%; bottom: -28px; transform: translateX(-50%); font-size: .68rem; color: var(--ink-3); white-space: nowrap; font-family: var(--serif); }
.stair-bars button[aria-pressed="true"] span { color: var(--navy); font-weight: 600; }
.stair-bars .divider { position: absolute; bottom: -2px; height: calc(100% + 4px); border-left: 1px dashed var(--gold-2); }
.stair-bars .lbl { position: absolute; top: 0; font-family: var(--display); letter-spacing: .3em; font-size: .7rem; color: var(--gold); }
.stair-panel { background: #fff; border: 1px solid var(--line); padding: 32px 30px; box-shadow: var(--shadow); min-height: 300px; }
.stair-panel .r { font-family: var(--serif); font-size: 2.2rem; color: var(--navy); letter-spacing: .1em; line-height: 1.2; }
.stair-panel .nick { font-family: var(--serif); color: var(--gold); letter-spacing: .14em; margin: 4px 0 18px; }
.stair-panel h4 { font-family: var(--sans); font-weight: 500; font-size: .72rem; letter-spacing: .2em; color: var(--ink-3); margin: 16px 0 4px; text-transform: uppercase; }
.stair-panel p { margin: 0; color: var(--ink); font-size: .92rem; }
.stair-panel .diff { background: var(--gold-soft); border-left: 2px solid var(--gold); padding: 10px 14px; color: #5e4a22; }
.stair-panel .acts { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }

/* 流れ */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: f; }
@media (max-width: 900px) { .flow { grid-template-columns: 1fr; gap: 0; } }
.flow div { position: relative; padding: 0 22px 0 0; }
.flow div::before { counter-increment: f; content: "0" counter(f); display: block; font-family: var(--display); font-size: 2.6rem; color: var(--gold-2); line-height: 1; margin-bottom: 14px; }
.flow div::after { content: ""; position: absolute; top: 22px; left: 60px; right: 18px; height: 1px; background: var(--line); }
.flow div:last-child::after { display: none; }
.flow b { display: block; font-family: var(--serif); font-weight: 500; color: var(--navy); margin-bottom: 6px; letter-spacing: .06em; }
.flow span { font-size: .86rem; color: var(--ink-2); }
@media (max-width: 900px) { .flow div { padding: 0 0 26px 70px; } .flow div::before { position: absolute; left: 0; top: 0; } .flow div::after { display: none; } }

/* 帯 */
.band { background: var(--navy); color: #fff; padding: 70px 0; text-align: center; position: relative; overflow: hidden; }
.band h2 { color: #fff; margin: 0 0 10px; font-size: clamp(1.4rem, 3vw, 2rem); }
.band p { color: #c7cad2; margin: 0 0 28px; }
.band .btn { background: #fff; color: var(--navy); border-color: #fff; }
.band .btn:hover { background: var(--gold-soft); }

/* コラムのカード */
.col-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 26px; }
.col-card { display: block; text-decoration: none; color: inherit; border-top: 1px solid var(--navy); padding-top: 18px; }
.col-card .cat { font-family: var(--display); letter-spacing: .24em; font-size: .72rem; color: var(--gold); text-transform: uppercase; }
.col-card b { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.12rem; color: var(--navy); margin: 8px 0 8px; line-height: 1.6; }
.col-card span { font-size: .86rem; color: var(--ink-2); display: block; }
.col-card em { display: inline-block; margin-top: 12px; font-style: normal; font-size: .76rem; color: var(--ink-3); }
.col-card:hover b { color: var(--gold); }

/* 記事 */
.article { padding: 70px 0 90px; }
.article h1 { font-size: clamp(1.6rem, 3.6vw, 2.3rem); margin: 6px 0 18px; }
.article .meta { color: var(--ink-3); font-size: .82rem; margin-bottom: 34px; }
.article h2 { font-size: 1.3rem; margin: 46px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); }
.article h3 { font-size: 1.05rem; margin: 30px 0 8px; }
.article p, .article li { color: var(--ink); line-height: 2.05; }
.article .formula { font-family: var(--display), serif; font-size: 1.25rem; text-align: center; background: var(--paper-2); padding: 18px; margin: 20px 0; letter-spacing: .04em; }
.article figure { margin: 26px 0; background: var(--paper-2); padding: 20px; }
.article figcaption { font-size: .78rem; color: var(--ink-3); margin-top: 8px; text-align: center; }
.article .point { border-left: 2px solid var(--gold); padding: 6px 0 6px 18px; color: var(--ink-2); margin: 22px 0; }
.article table { border-collapse: collapse; width: 100%; font-size: .9rem; margin: 18px 0; }
.article th, .article td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; }
.article th { color: var(--ink-3); font-weight: 500; font-size: .8rem; letter-spacing: .08em; }
.play-inline { display: inline-flex; align-items: center; gap: 6px; padding: 3px 12px; border: 1px solid var(--gold-2); border-radius: 20px; background: #fff; color: var(--gold); font-size: .78rem; cursor: pointer; vertical-align: middle; }
.play-inline:hover { background: var(--gold-soft); }

/* トレーニング：級・段の選択 */
.rank-pick { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
@media (max-width: 760px) { .rank-pick { grid-template-columns: repeat(3, 1fr); } }
.rp { position: relative; text-align: left; background: #fff; border: 1px solid var(--line); padding: 14px 14px 12px; cursor: pointer; transition: border-color .2s, background .2s; }
.rp b { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.05rem; color: var(--navy); letter-spacing: .06em; }
.rp span { display: block; font-size: .72rem; color: var(--ink-3); margin-top: 2px; }
.rp em { position: absolute; top: 10px; right: 10px; font-style: normal; font-size: .66rem; color: var(--gold); }
.rp.dan { background: var(--paper-2); }
.rp:hover { border-color: var(--gold-2); }
.rp.on { border-color: var(--navy); background: var(--navy); }
.rp.on b, .rp.on span { color: #fff; } .rp.on em { color: var(--gold-2); }
.ver.sel { border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
.meter { height: 4px; background: var(--paper-2); max-width: 320px; margin: 6px auto 0; }
.meter i { display: block; height: 100%; background: linear-gradient(90deg, var(--gold-2), var(--gold)); }
.trophy-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; }
.trophy-row div { display: flex; align-items: center; gap: 8px; font-size: .86rem; }

/* 受験：規約・カメラ */
ol.rules { padding-left: 1.4em; } ol.rules li { margin: 8px 0; color: var(--ink-2); }
.cam { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: start; margin-top: 10px; }
@media (max-width: 600px) { .cam { grid-template-columns: 1fr; } }
.cam-view { position: relative; width: 220px; height: 280px; background: var(--paper-2); border: 1px solid var(--line); overflow: hidden; display: grid; place-items: center; }
.cam-view video, .cam-view img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cam-view video { transform: scaleX(-1); }
.cam-btns { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.card .tbl tbody th { color: var(--ink-3); font-weight: 400; width: 34%; }

/* マイページ・プロフィール */
.auth-wrap { display: grid; grid-template-columns: 380px 1fr; gap: 40px; align-items: start; }
@media (max-width: 900px) { .auth-wrap { grid-template-columns: 1fr; } }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; margin: -28px -26px 24px; border-bottom: 1px solid var(--line); }
.auth-tabs button { background: var(--paper-2); border: none; padding: 16px; cursor: pointer; font-size: .9rem; letter-spacing: .1em; color: var(--ink-3); }
.auth-tabs button[aria-pressed="true"] { background: #fff; color: var(--navy); box-shadow: inset 0 -2px 0 var(--gold); }
.mp-head, .pc-head { display: flex; gap: 20px; align-items: center; }
.avatar { flex: none; width: 76px; height: 76px; border-radius: 50%; background: var(--c, var(--navy)); color: #fff; display: grid; place-items: center; font-family: var(--serif); font-size: 2rem; box-shadow: 0 0 0 4px #fff, 0 0 0 5px var(--gold-2); }
.pc-title { font-size: .76rem; letter-spacing: .2em; color: var(--gold); min-height: 1.2em; }
.mp-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line); margin-top: 28px; overflow-x: auto; }
.mp-tabs button { background: none; border: none; padding: 12px 18px; cursor: pointer; color: var(--ink-3); font-size: .88rem; white-space: nowrap; letter-spacing: .06em; }
.mp-tabs button[aria-pressed="true"] { color: var(--navy); box-shadow: inset 0 -2px 0 var(--gold); }
.trophy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.tg { background: #fff; border: 1px solid var(--line); padding: 18px 14px 14px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.tg b { font-family: var(--serif); font-weight: 500; font-size: .86rem; color: var(--ink-3); line-height: 1.5; }
.tg span { font-size: .7rem; color: var(--ink-3); line-height: 1.5; }
.tg em { font-style: normal; font-size: .64rem; color: var(--gold); }
.tg.on b { color: var(--navy); } .tg.on { border-color: var(--gold-2); }
.trophy-grid.small-g { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
.trophy-grid.small-g div { display: flex; flex-direction: column; align-items: center; font-size: .72rem; text-align: center; color: var(--ink-2); }
.swatches { display: flex; gap: 10px; }
.swatches button { width: 30px; height: 30px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--line); cursor: pointer; }
.swatches button[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--gold); }
.row2 { display: grid; grid-template-columns: 1fr 90px 32px; gap: 6px; margin-bottom: 6px; }
.row2.hist { grid-template-columns: 90px 1fr 32px; }
.row2 input { padding: 9px 10px; border: 1px solid var(--line); border-radius: var(--radius); font: inherit; font-size: .88rem; min-width: 0; }
.row2 .x { border: 1px solid var(--line); background: #fff; cursor: pointer; color: var(--ink-3); }
.share-url { width: 100%; padding: 10px 12px; border: 1px solid var(--line); font: inherit; font-size: .8rem; color: var(--ink-2); background: var(--paper-2); margin-top: 12px; }
.profile-card { background: #fff; border: 1px solid var(--line); padding: 44px 40px; box-shadow: var(--shadow); border-top: 4px solid var(--c); }
.profile-card h1 { font-size: 1.9rem; }
.profile-card h4 { font-family: var(--sans); font-weight: 500; font-size: .74rem; letter-spacing: .22em; color: var(--ink-3); margin: 30px 0 12px; text-transform: uppercase; }
.pc-bio { color: var(--ink-2); line-height: 2; margin-top: 24px; }
.pc-certs { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; }
.pc-certs div { border: 1px solid var(--gold-2); padding: 14px; background: var(--gold-soft); }
.pc-certs b { display: block; font-family: var(--serif); font-size: 1.3rem; color: var(--navy); }
.pc-certs span { display: block; font-size: .78rem; color: var(--ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { border: 1px solid var(--line); border-radius: 20px; padding: 4px 14px; font-size: .86rem; }
.chips em { font-style: normal; color: var(--gold); font-size: .78rem; }
ul.timeline { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--gold-2); }
ul.timeline li { position: relative; padding: 0 0 12px 22px; font-size: .9rem; }
ul.timeline li::before { content: ""; position: absolute; left: -4px; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
ul.timeline li span { display: inline-block; min-width: 56px; color: var(--gold); font-family: var(--display); font-size: 1rem; margin-right: 8px; }

/* コードの実験室 */
.lab-kb { position: relative; height: 150px; margin: 26px 0 10px; display: grid; grid-template-columns: repeat(21, 1fr); }
.lab-kb .w { position: relative; border: 1px solid #d9d5cc; margin-right: -1px; background: #fff; border-radius: 0 0 4px 4px; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 8px; font-style: normal; font-size: .72rem; color: #fff; }
.lab-kb .w.on { background: linear-gradient(180deg, #fff 10%, var(--gold-2)); }
.lab-kb .w.on span { color: var(--navy); font-weight: 600; }
.lab-kb .b { position: absolute; top: 0; height: 60%; width: calc(100% / 21 * .6); background: #1c1f26; border-radius: 0 0 3px 3px; z-index: 2; }
.lab-kb .b.on { background: var(--gold); }
.lab-info { display: grid; grid-template-columns: auto 1fr; gap: 6px 30px; align-items: baseline; }
.lab-name { grid-column: 1 / -1; font-family: var(--display); font-size: 2.6rem; color: var(--navy); line-height: 1.2; }
.lab-name small { font-family: var(--sans); font-size: .9rem; color: var(--gold); margin-left: 14px; }
.lab-row { display: contents; } .lab-row span { color: var(--ink-3); font-size: .82rem; } .lab-row b { font-weight: 500; font-family: var(--serif); }
.hero-card .seal svg { width: 46px; height: 46px; flex: none; }
.text-btn { background: none; border: none; color: var(--ink-2); text-decoration: underline; text-underline-offset: 4px; cursor: pointer; font-size: .86rem; padding: 0; }
.text-btn:hover { color: var(--gold); }

/* ヘッダー：メニューが入りきらないときは、どの言語でも自動で「メニュー」ボタンに切りかえる */
.site-header.collapse .menu-toggle { display: block; }
.site-header.collapse .gnav { position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); padding: 10px 16px 18px; gap: 0; display: none; max-height: calc(100vh - 68px); overflow-y: auto; }
.site-header.collapse .gnav.open { display: flex; }
.site-header.collapse .gnav a { padding: 12px 8px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: .92rem; }
.site-header.collapse .gnav a.cta { margin: 12px 0 0; text-align: center; border-radius: var(--radius); }
.site-header.collapse .lang-select { margin: 12px 0 0; }
.site-header.collapse .lang-select select { width: 100%; }
.logo span { min-width: 0; }
/* 長い言語は、トップの大見出しを少し小さく */
:root[data-lang="de"] .hero h1, :root[data-lang="es"] .hero h1, :root[data-lang="en"] .hero h1 { font-size: clamp(2rem, 4.2vw, 3.3rem); line-height: 1.22; letter-spacing: .02em; }

/* =========================================================
   IVORY & GOLD（2026/10/8〜）
   明るい象牙色の地に、金箔と墨色。証明書（黒×金）だけを濃く見せて主役にする
   ========================================================= */
:root {
  --paper: #fbf8f2; --paper-2: #f4efe4; --panel: #ffffff; --panel-2: #fffdf8;
  --line: #e7dfcd; --line-2: #d8c9a6;
  --navy: #1d1a14; --navy-2: #2b2720; --navy-3: #8a6a2c;
  --ink: #2c2822; --ink-2: #6a6355; --ink-3: #9a917f;
  --gold: #b08a3e; --gold-2: #c9a456; --gold-soft: #f6eedb;
  --foil: linear-gradient(105deg, #8c6a2c 0%, #e9cf8a 22%, #fff4cf 34%, #c9a456 50%, #8c6a2c 66%, #f2dc9c 82%, #9b7633 100%);
  --foil-ink: linear-gradient(105deg, #6e5020 0%, #a7802f 25%, #d1ae5e 40%, #8c6a2c 55%, #b8913f 75%, #6e5020 100%);
  --shadow: 0 40px 80px -45px rgba(80, 60, 20, .35);
  --ok: #3f8a63; --ng: #b5505a;
}
body { background: var(--paper); color: var(--ink); }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(1100px 560px at 85% -10%, rgba(201, 164, 86, .14), transparent 60%), radial-gradient(900px 500px at -10% 40%, rgba(201, 164, 86, .08), transparent 60%); }
main, .site-footer { position: relative; z-index: 1; }
::selection { background: rgba(201, 164, 86, .3); }
a { color: var(--gold); }
h1, h2, h3, h4 { color: var(--navy); font-weight: 500; }
.eyebrow, .hero .kicker { color: var(--gold); }
.rule { background: var(--foil-ink); width: 70px; height: 1px; }

/* 金の文字（明るい地では、濃い金） */
.foil, .hero h1, .sec-title h2, .cs-text h2, .page-head h1 { background: var(--foil-ink); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-head h1, .try-hero h1 { animation: foilmove 10s ease-in-out infinite alternate; }
@keyframes foilmove { from { background-position: 0% 0; } to { background-position: 100% 0; } }

/* ヘッダー・フッター */
.site-header { background: rgba(251, 248, 242, .88); border-bottom: 1px solid var(--line); }
.logo { color: var(--navy); }
.logo small { color: var(--gold); }
.gnav a { color: var(--ink-2); }
.gnav a:hover, .gnav a[aria-current] { color: var(--gold); background: transparent; }
.gnav a.cta { background: var(--foil); color: #2a1f08; font-weight: 500; box-shadow: 0 6px 18px -8px rgba(176, 138, 62, .6); }
.gnav a.cta:hover { filter: brightness(1.05); background: var(--foil); }
.lang-select select { background-color: #fff; color: var(--ink); border-color: var(--line-2); }
.menu-toggle { border-color: var(--line-2); color: var(--ink); background: #fff; }
@media (max-width: 1080px) { .gnav { background: var(--paper); } }
.site-header.collapse .gnav { background: var(--paper); }
.site-footer { background: #f1ebde; border-top: 1px solid var(--line); }
.site-footer h4 { color: var(--gold); }
.site-footer a { color: var(--ink-2); } .site-footer a:hover { color: var(--gold); }
.proto { background: rgba(255, 255, 255, .8); color: var(--ink-3); border: 1px solid var(--line-2); font-size: .66rem; }

/* ボタン：金箔 */
.btn { background: var(--foil); background-size: 200% 100%; background-position: 30% 0; border: 0; color: #2a1f08; font-weight: 500; letter-spacing: .1em; box-shadow: 0 12px 28px -14px rgba(140, 106, 44, .7); transition: background-position .6s, transform .2s, box-shadow .2s; }
.btn:hover { background: var(--foil); background-size: 200% 100%; background-position: 90% 0; box-shadow: 0 16px 36px -14px rgba(140, 106, 44, .85); transform: translateY(-1px); }
.btn.ghost { background: rgba(255, 255, 255, .6); color: var(--navy); border: 1px solid var(--line-2); box-shadow: none; }
.btn.ghost:hover { background: #fff; border-color: var(--gold); color: var(--gold); }
.btn.gold { background: var(--foil); }
.text-link, .text-btn { color: var(--gold); }
.text-btn:hover { color: var(--navy); }

/* 面 */
.page-head { background: linear-gradient(180deg, #fffdf8, var(--paper)); border-bottom: 1px solid var(--line); }
.section.alt { background: var(--paper-2); }
.card, .quiz, .stair-panel, .ver, .rp, .tg, .profile-card, .hero-card, .type-cards div, table.tbl, .cam-view { background: var(--panel); border-color: var(--line); color: var(--ink); }
.ver { color: var(--gold); }
.ver b, .rp b, .tg b, .card h3, .flow b, .feat b, .col-card b, .stair-panel .r { color: var(--navy); }
.ver:hover, a.card:hover, .rp:hover { border-color: var(--gold-2); }
.ver em { color: var(--gold); border-color: var(--line-2); }
.ver.playing em { background: var(--gold); color: #fff; }
.ver.sel { border-color: var(--gold); box-shadow: inset 0 0 0 1px var(--gold); }
.tbl thead th { background: var(--navy); color: #f3e6c4; }
.tbl tbody tr:hover { background: #fdf8ec; }
.stair-panel .diff { background: var(--gold-soft); color: #5e4a22; border-left-color: var(--gold); }
.stair-bars button { background: linear-gradient(180deg, #ece5d6, #f7f3ea); }
.stair-bars button.dan { background: linear-gradient(180deg, #e3d5b2, #f1e8d2); }
.stair-bars button:hover, .stair-bars button[aria-pressed="true"] { background: var(--foil); }
.stair-bars button[aria-pressed="true"] span { color: var(--gold); }
.stair-bars .lbl { color: var(--gold); }
.flow div::before { background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.feat div, .col-card { border-color: var(--line-2); }
.col-card:hover b { color: var(--gold); }
.play-inline { border-color: var(--line-2); color: var(--gold); }

/* 帯：ここだけ濃く（証明書と同じ黒×金） */
.band { background: radial-gradient(700px 300px at 50% 0%, #20253a, #0c0e15 70%); color: #efe7d4; border: 0; padding: 100px 0; }
.band h2 { background: var(--foil); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; }
.band p { color: #b9b09c; }

/* フォーム */
.check input { accent-color: var(--gold); }
.auth-tabs button[aria-pressed="true"], .mp-tabs button[aria-pressed="true"] { color: var(--gold); }
.steps li.on { color: var(--gold); border-color: var(--gold); } .steps li.on::before { background: var(--gold); }
.steps li.done { border-color: var(--gold-2); } .steps li.done::before { background: var(--gold-2); }
.rp.dan { background: var(--panel-2); }
.rp.on { background: var(--foil); border-color: var(--gold); } .rp.on b, .rp.on span { color: #2a1f08; } .rp.on em { color: #5e4a22; }
.avatar { box-shadow: 0 0 0 4px #fff, 0 0 0 5px var(--gold-2); }

/* 出題 */
.listen { border: 1px solid var(--gold-2); background: radial-gradient(circle at 50% 35%, #fff, #f3ead6); color: var(--navy); box-shadow: 0 0 0 6px rgba(201, 164, 86, .12), 0 20px 50px -24px rgba(140, 106, 44, .6); }
.ans[aria-pressed="true"] { background: var(--gold); color: #fff; border-color: var(--gold); }
.kb-key[aria-pressed="true"] { background: var(--gold) !important; color: #fff !important; }

/* ---------- トップ：1音だけ試す ---------- */
.try-hero { background: radial-gradient(900px 480px at 50% 0%, #fffaf0, transparent 70%); border-bottom: 1px solid var(--line); padding: 110px 0 100px; text-align: center; }
.try-hero .wrap { display: block; }
.try-hero h1 { font-size: clamp(2.6rem, 7vw, 5rem); line-height: 1.2; letter-spacing: .06em; }
.try-hero .lead { margin: 24px auto 40px; color: var(--ink-2); max-width: 34em; }
.try-hero .note { color: var(--ink-3); }
.try { min-height: 300px; display: grid; place-items: center; }
.try-play { position: relative; width: 210px; height: 210px; border-radius: 50%; border: 0; cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; color: #2a1f08;
  background: radial-gradient(circle at 35% 28%, #fff7dc, #e2c787 45%, #b08a3e 100%); box-shadow: 0 0 0 10px rgba(201, 164, 86, .14), 0 30px 60px -20px rgba(140, 106, 44, .7), inset 0 2px 0 rgba(255, 255, 255, .7); transition: transform .25s, box-shadow .25s; }
.try-play:hover { transform: scale(1.04); box-shadow: 0 0 0 14px rgba(201, 164, 86, .18), 0 36px 70px -20px rgba(140, 106, 44, .8), inset 0 2px 0 rgba(255, 255, 255, .7); }
.try-play svg { width: 54px; height: 54px; }
.try-play b { font-family: var(--serif); font-weight: 600; letter-spacing: .14em; font-size: 1rem; }
.try-play .ring { position: absolute; inset: -1px; border-radius: 50%; border: 1px solid var(--gold); animation: ring 2.6s ease-out infinite; }
.try-play .r2 { animation-delay: 1.3s; }
.try-q { width: min(620px, 100%); background: rgba(255, 255, 255, .9); border: 1px solid var(--line-2); padding: 26px 24px 24px; box-shadow: var(--shadow); }
.try-re { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line-2); color: var(--gold); padding: 6px 16px; border-radius: 30px; cursor: pointer; font-size: .82rem; }
.try-re svg { width: 18px; height: 18px; }
.try-ask { font-family: var(--serif); font-size: 1.2rem; color: var(--navy); margin: 14px 0 6px; letter-spacing: .1em; }
.try-res { min-height: 1.6em; margin: 18px 0 6px; font-family: var(--serif); font-size: 1.05rem; }
.try-res.ok { color: var(--gold); } .try-res.ng { color: var(--ng); }
.try-acts { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 10px; }

/* ---------- トップ：証明書の見本（ここだけ濃い舞台） ---------- */
.cert-show { background: radial-gradient(900px 520px at 70% 50%, #20253a, #0b0d14 75%); color: #e8e0cc; }
.cert-show .eyebrow { color: #e2c787; }
.cert-show .cs-text h2 { background: var(--foil); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; }
.cert-show .lead-p, .cs-points span { color: #b9b09c; }
.cs-points b { color: #f1e9d6; }
.cs-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: center; }
@media (max-width: 900px) { .cs-grid { grid-template-columns: 1fr; } }
.cs-text h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.5; margin: 0 0 18px; word-break: keep-all; }
.cs-points { list-style: none; padding: 0; margin: 28px 0 34px; display: grid; gap: 16px; }
.cs-points li { padding-left: 22px; position: relative; }
.cs-points li::before { content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 8px; transform: rotate(45deg); background: var(--foil); }
.cs-points b { display: block; font-family: var(--serif); font-weight: 500; letter-spacing: .06em; }
.cs-points span { font-size: .88rem; }
.cs-stage { perspective: 1400px; }
.cs-card { position: relative; transform-style: preserve-3d; transition: transform .35s ease-out; box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .9), 0 0 0 1px rgba(201, 164, 86, .25); transform: rotateY(-8deg) rotateX(4deg); }
.cs-card canvas { width: 100%; height: auto; }
.cs-card .sheen { position: absolute; inset: 0; pointer-events: none; mix-blend-mode: soft-light; background: radial-gradient(600px 300px at var(--sx, 30%) var(--sy, 20%), rgba(255, 244, 207, .55), transparent 60%); }
.cs-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, transparent 35%, rgba(255, 240, 200, .18) 48%, transparent 60%); background-size: 250% 100%; animation: glint 6s ease-in-out infinite; }
@keyframes glint { 0%, 55% { background-position: 120% 0; } 100% { background-position: -60% 0; } }
@media (prefers-reduced-motion: reduce) { .cs-card::after, .try-play .ring, .try-hero h1, .page-head h1 { animation: none; } }
.notice.navy { background: #f8f3e7; border-color: var(--line-2); color: #5e4a22; }

/* 日本語の変なところでの改行を防ぐ：言葉のまとまりで折り返し、行の長さをそろえる */
h1, h2, h3, h4, .lead, .lead-p, .sec-title p, .page-head p.lead, .eyebrow, .kicker, .note, .cs-points span, .cs-points b, .try-ask, .try-res, .flow span, .ver span, .band p, .stair-panel p {
  word-break: keep-all; word-break: auto-phrase; overflow-wrap: anywhere; text-wrap: balance; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) .lead, :lang(zh) .lead-p { word-break: normal; }

/* 証明書の照会 */
.vf-card { padding: 36px 34px; }
.vf-ok { border: 1px solid var(--gold-2); background: linear-gradient(180deg, #fffdf6, #f8f0dc); padding: 26px 26px 20px; text-align: center; }
.vf-seal { width: 64px; height: 64px; margin: 0 auto 10px; border-radius: 50%; display: grid; place-items: center; font-size: 1.8rem; color: #2a1f08; background: radial-gradient(circle at 35% 28%, #fff7dc, #e2c787 45%, #b08a3e 100%); box-shadow: 0 10px 24px -10px rgba(140, 106, 44, .7); }
.vf-msg { font-family: var(--serif); color: var(--navy); margin: 0 0 16px; }
.vf-ok dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 20px; text-align: left; max-width: 420px; margin: 0 auto; font-size: .92rem; }
.vf-ok dt { color: var(--ink-3); } .vf-ok dd { margin: 0; color: var(--navy); font-family: var(--serif); }
.vf-ok .vf-lv { font-family: "Cinzel", var(--display); font-size: 1.3rem; background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.vf-ng { background: #fbf0f0; border: 1px solid #e9c9cc; color: var(--ng); padding: 14px 18px; font-size: .9rem; }

/* トップ：この検定について */
.about2 { padding: 100px 0; border-bottom: 1px solid var(--line); }
.ab-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; align-items: start; }
@media (max-width: 860px) { .ab-grid { grid-template-columns: 1fr; gap: 26px; } }
.ab-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); line-height: 1.55; margin: 0; background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ab-body > p { color: var(--ink); line-height: 2.15; margin: 0 0 1.4em; font-family: var(--serif); font-size: 1.02rem; letter-spacing: .04em; }
.ab-uses { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 30px; }
@media (max-width: 600px) { .ab-uses { grid-template-columns: 1fr; } }
.ab-uses div { background: var(--panel); padding: 22px 22px 20px; }
.ab-uses b { display: block; font-family: var(--serif); font-weight: 500; color: var(--gold); letter-spacing: .08em; margin-bottom: 4px; }
.ab-uses span { font-size: .88rem; color: var(--ink-2); }
.logo .logo-img { width: 40px; height: 40px; flex: none; filter: drop-shadow(0 2px 4px rgba(0,0,0,.25)); }
.site-footer .logo .logo-img { width: 52px; height: 52px; }

/* トップ：おすすめの方 */
.rc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .rc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .rc-grid { grid-template-columns: 1fr; } }
.rc-grid div { background: var(--panel); border: 1px solid var(--line); padding: 28px 26px 24px; position: relative; transition: border-color .25s, transform .25s, box-shadow .25s; }
.rc-grid div:hover { border-color: var(--gold-2); transform: translateY(-2px); box-shadow: var(--shadow); }
.rc-grid i { display: block; font-style: normal; font-family: "Cinzel", var(--display); font-size: 1.5rem; line-height: 1; margin-bottom: 14px; background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rc-grid b { display: block; font-family: var(--serif); font-weight: 500; color: var(--navy); font-size: 1.05rem; letter-spacing: .05em; margin-bottom: 6px; }
.rc-grid span { font-size: .88rem; color: var(--ink-2); line-height: 1.85; }
.logo .logo-img { filter: drop-shadow(0 1px 3px rgba(120, 90, 30, .25)); }

/* トップのスローガン */
.try-hero .kicker { margin-bottom: 18px; }
.try-hero .slogan { font-family: var(--serif); font-size: clamp(1.05rem, 2.2vw, 1.4rem); letter-spacing: .22em; color: var(--navy); margin: 0 0 34px; display: inline-flex; align-items: center; gap: 18px; }
.try-hero .slogan::before, .try-hero .slogan::after { content: ""; width: 44px; height: 1px; background: var(--foil-ink); }
@media (max-width: 560px) { .try-hero .slogan { letter-spacing: .1em; gap: 10px; } .try-hero .slogan::before, .try-hero .slogan::after { width: 20px; } }
.vf-id { font-family: "Cinzel", var(--display) !important; letter-spacing: .1em; text-transform: uppercase; font-size: 1.05rem !important; }
.vf-pre { display: flex; align-items: center; gap: 18px; border: 1px solid var(--gold-2); background: linear-gradient(180deg, #fffdf6, #f8f0dc); padding: 18px 22px; margin: -4px 0 6px; }
.vf-dot { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: #2a1f08; background: radial-gradient(circle at 35% 28%, #fff7dc, #e2c787 45%, #b08a3e 100%); }
.vf-pre small { display: block; font-size: .78rem; color: var(--ink-2); letter-spacing: .06em; }
.vf-pre b { display: block; font-family: "Cinzel", var(--display); font-weight: 600; font-size: 1.9rem; line-height: 1.2; background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.vf-pre em { font-style: normal; font-size: .86rem; color: var(--navy); }
.vf-sub { margin: 26px 0 12px; padding-top: 18px; border-top: 1px solid var(--line); font-family: var(--serif); color: var(--gold); letter-spacing: .1em; font-size: .9rem; }
.try-hero { padding-top: 44px; } @media (max-width: 600px) { .try-hero { padding-top: 30px; } }
.logo b { margin-bottom: 4px; } .logo small { letter-spacing: .16em; }

/* トップ：いつでも・どこでも・その場で結果 */
.speed { border-bottom: 1px solid var(--line); }
.sp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
@media (max-width: 820px) { .sp-grid { grid-template-columns: 1fr; } }
.sp-grid div { padding: 38px 30px 34px; text-align: center; position: relative; }
.sp-grid div + div::before { content: ""; position: absolute; left: 0; top: 30px; bottom: 30px; width: 1px; background: var(--line-2); }
@media (max-width: 820px) { .sp-grid div + div::before { left: 30px; right: 30px; top: 0; bottom: auto; width: auto; height: 1px; } }
.sp-grid em { display: block; font-style: normal; font-family: "Cinzel", var(--display); font-weight: 600; font-size: clamp(2.2rem, 4.4vw, 3.2rem); line-height: 1.1; letter-spacing: .04em; margin-bottom: 12px; background: var(--foil-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sp-grid b { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.15rem; color: var(--navy); letter-spacing: .14em; margin-bottom: 8px; }
.sp-grid span { display: block; font-size: .9rem; color: var(--ink-2); line-height: 1.9; max-width: 22em; margin: 0 auto; }
.sp-time { text-align: center; margin: 30px 0 0; }
.sp-time span { display: inline-block; font-family: var(--serif); color: var(--navy); letter-spacing: .1em; padding: 10px 26px; border: 1px solid var(--line-2); background: var(--panel); }
.stair-panel .r-pre { display: block; font-size: .9rem; letter-spacing: .14em; color: var(--ink-2); margin-bottom: 2px; }
.auth-wrap.single { grid-template-columns: minmax(0, 420px); justify-content: center; }
.site-footer .logo { gap: 18px; }
.site-footer .logo { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }

/* メダルケース（黒いビロードのケースに、くぼみが並ぶ） */
.medal-case { background: radial-gradient(900px 400px at 50% 0%, #1e2232, #0c0e15 75%); border: 1px solid rgba(201, 164, 86, .45); box-shadow: inset 0 0 0 6px #14161f, inset 0 0 0 7px rgba(201, 164, 86, .25), 0 30px 60px -30px rgba(0, 0, 0, .6); padding: 30px 28px 34px; color: #e8e0cc; }
.mc-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; border-bottom: 1px solid rgba(201, 164, 86, .25); padding-bottom: 12px; margin-bottom: 6px; }
.mc-title { margin: 0; font-family: "Cinzel", var(--serif); letter-spacing: .2em; font-size: 1.05rem; background: var(--foil); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mc-count { margin: 0; font-size: .82rem; color: #b9b09c; }
.mc-sub { margin: 22px 0 12px; font-size: .78rem; letter-spacing: .2em; color: #c9a456; }
.mc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 18px 10px; }
.mc-grid.lv { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 600px) { .mc-grid.lv { grid-template-columns: repeat(3, 1fr); } }
.mc-slot { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; }
.mc-slot .medal { filter: drop-shadow(0 6px 10px rgba(0, 0, 0, .5)); }
.mc-slot b { font-family: var(--serif); font-weight: 500; font-size: .78rem; color: #6f6b62; line-height: 1.4; }
.mc-slot span { font-size: .64rem; color: #57534b; line-height: 1.5; }
.mc-slot.on b { color: #f1e9d6; } .mc-slot.on span { color: #a89f8a; }
.mc-slot.fresh .medal { animation: medalin .9s cubic-bezier(.2, 1.4, .4, 1) both; }
@keyframes medalin { from { transform: scale(.3) rotate(-30deg); opacity: 0; } to { transform: none; opacity: 1; } }
.mc-got { margin: 22px auto 0; max-width: 520px; padding: 18px 20px; border: 1px solid var(--gold-2); background: linear-gradient(180deg, #fffdf6, #f8f0dc); }
.mc-got p { margin: 0 0 10px; font-family: var(--serif); color: var(--navy); }
.mc-got-row { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-bottom: 8px; }
.mc-got-row.left { justify-content: flex-start; }
.mc-got-row div { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: .78rem; color: var(--ink-2); max-width: 110px; text-align: center; }
.mc-got-row .medal { animation: medalin .9s cubic-bezier(.2, 1.4, .4, 1) both; }
.avatar { overflow: hidden; position: relative; }
.avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; display: block; }
.avatar-edit { cursor: pointer; }
.avatar-edit .av-cam { position: absolute; right: -2px; bottom: -2px; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: .9rem; color: #2a1f08; background: var(--foil); box-shadow: 0 0 0 2px #fff; }
.avatar-edit:hover img { opacity: .85; }
/* メダル（ロゴの金属版） */
.medal { position: relative; display: inline-block; border-radius: 50%; flex: none; }
.medal img { width: 100%; height: 100%; display: block; border-radius: 50%; filter: drop-shadow(0 6px 10px rgba(0, 0, 0, .45)); }
.medal.empty { background: radial-gradient(circle at 50% 40%, #05060a, #1b1e2a); box-shadow: inset 0 3px 8px rgba(0, 0, 0, .8), inset 0 -1px 0 rgba(255, 255, 255, .06); }
.medal.empty img { opacity: .07; filter: grayscale(1); }
.medal.empty em { position: absolute; inset: 0; display: grid; place-items: center; font-style: normal; font-family: "Cinzel", var(--serif); font-size: .78rem; color: rgba(201, 164, 86, .4); }
.mc-slot .medal { filter: none; }
.avatar-edit { overflow: visible; }
.mc-try { margin-top: 2px; font-size: .7rem; letter-spacing: .12em; color: #e2c787; text-decoration: none; border: 1px solid rgba(201, 164, 86, .45); padding: 3px 12px; border-radius: 20px; transition: background .2s, color .2s; }
.mc-try:hover { background: var(--foil); color: #1a1408; border-color: transparent; }
/* 復旧用コード */
.rc-card { max-width: 560px; margin: 0 auto; text-align: center; padding: 40px 34px; }
.rc-code { font-family: "Cinzel", var(--display); font-size: clamp(1.2rem, 4vw, 1.7rem); letter-spacing: .14em; padding: 18px; margin: 18px 0 12px; border: 1px dashed var(--gold); background: var(--gold-soft); color: var(--navy); user-select: all; word-break: break-all; }
.tbl.confirm th { width: 30%; white-space: nowrap; } @media (max-width: 600px) { .tbl.confirm th { white-space: normal; } }
/* 言語の切りかえは、いつもヘッダーに見えるように（メニューの外） */
.site-header .wrap > .lang-select { margin: 0 0 0 8px; flex: none; }
.site-header.collapse .wrap > .lang-select { margin-left: auto; }
.site-header.collapse .menu-toggle { margin-left: 8px; }
@media (max-width: 1080px) { .site-header .wrap > .lang-select { margin-left: auto; } .menu-toggle { margin-left: 8px; } }
@media (max-width: 480px) { .site-header .wrap > .lang-select select { max-width: 110px; padding-right: 22px; font-size: .74rem; } .logo small { display: none; } }
.menu-toggle { white-space: nowrap; flex: none; }
@media (max-width: 560px) {
  .site-header .wrap { gap: 8px; }
  .logo b { font-size: .9rem; letter-spacing: .06em; }
  .logo .logo-img { width: 34px; height: 34px; }
  .site-header .wrap > .lang-select select { max-width: 96px; padding: 5px 20px 5px 8px; font-size: .72rem; background-position: right 6px center; }
  .menu-toggle { padding: 5px 9px; font-size: .74rem; }
  .try-hero .slogan { font-size: .92rem; letter-spacing: .06em; }
  .try-hero .slogan::before, .try-hero .slogan::after { width: 14px; }
}