/* ============================================
   伊藤和真 講師ポートフォリオ  スタイルシート
   ============================================ */
:root {
  --ai: #1b3a5c;            /* 藍（メイン） */
  --ai-deep: #10263f;
  --ai-soft: #e6edf4;
  --gold: #d9962b;          /* 黄金（アクセント・ロゴ色） */
  --gold-deep: #b87b1c;
  --gold-soft: #f8efdf;
  --kinari: #f7f3ea;        /* 生成り（背景） */
  --white: #fffdf9;
  --ink: #23262b;
  --ink-2: #5a606a;
  --ink-3: #8b909a;
  --line: #e2ddd1;
  --serif: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --en: "Cormorant Garamond", "Times New Roman", serif;
  --shadow-sm: 0 2px 8px rgba(27, 58, 92, .06);
  --shadow-md: 0 10px 30px -10px rgba(27, 58, 92, .18);
  --shadow-lg: 0 30px 60px -20px rgba(16, 38, 63, .35);
  --radius: 6px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--kinari);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ai); text-decoration: none; }
ul, ol { list-style: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 28px; }
.pc-only { display: inline; }
.sp-only { display: none; }

/* ===== ボタン ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 16px 34px; border-radius: 999px;
  font-weight: 700; font-size: 15px; letter-spacing: .06em;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  border: 1.5px solid transparent; cursor: pointer; font-family: var(--sans);
}
.btn-gold {
  background: linear-gradient(135deg, #e6a63a, var(--gold) 55%, var(--gold-deep));
  color: #fff; box-shadow: 0 10px 24px -8px rgba(217, 150, 43, .55);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -8px rgba(217, 150, 43, .65); }
.btn-gold:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost { color: #fff; border-color: rgba(255, 255, 255, .55); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

/* ===== ヘッダー ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s, box-shadow .4s, backdrop-filter .4s;
}
.site-header.is-scrolled {
  background: rgba(247, 243, 234, .92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
}
.header-inner {
  max-width: 1240px; margin: 0 auto; padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; color: #fff; transition: color .4s; }
.site-header.is-scrolled .brand { color: var(--ink); }
.brand-logo { width: 40px; height: 40px; border-radius: 50%; box-shadow: 0 0 0 2px rgba(255,255,255,.15); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: .12em; }
.brand-sub { font-family: var(--en); font-size: 10.5px; letter-spacing: .22em; opacity: .7; margin-top: 3px; }

.global-nav ul { display: flex; align-items: center; gap: 4px; }
.global-nav a {
  display: inline-block; padding: 8px 14px; font-size: 14px; font-weight: 500;
  color: rgba(255, 255, 255, .88); letter-spacing: .04em; position: relative; transition: color .4s;
}
.global-nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.global-nav a:hover::after { transform: scaleX(1); }
.site-header.is-scrolled .global-nav a { color: var(--ink); }
.global-nav .nav-cta {
  margin-left: 10px; padding: 9px 20px; border-radius: 999px;
  background: var(--gold); color: #fff !important; font-weight: 700;
}
.global-nav .nav-cta::after { display: none; }
.global-nav .nav-cta:hover { background: var(--gold-deep); }

.nav-toggle {
  display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer;
  position: relative; z-index: 110;
}
.nav-toggle span {
  position: absolute; left: 10px; right: 10px; height: 2px; background: #fff;
  transition: transform .3s var(--ease), opacity .3s, top .3s, background .4s;
}
.site-header.is-scrolled .nav-toggle span { background: var(--ink); }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-toggle.active span { background: #fff; }
.nav-toggle.active span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ===== ファーストビュー ===== */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  background: radial-gradient(120% 90% at 85% 10%, #2a5580 0%, var(--ai) 45%, var(--ai-deep) 100%);
  color: #fff; overflow: hidden;
  display: flex; flex-direction: column; justify-content: center;
  padding: 130px 0 0;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(70% 70% at 50% 40%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 40%, #000 20%, transparent 100%);
}
.hero-crane {
  position: absolute; width: 62vw; max-width: 760px; min-width: 420px;
  right: -14vw; top: -8%; opacity: .07;
  filter: grayscale(1) brightness(3);
  animation: crane-drift 14s ease-in-out infinite alternate;
}
@keyframes crane-drift { from { transform: translateY(0) rotate(-2deg); } to { transform: translateY(24px) rotate(2deg); } }

.hero-inner {
  position: relative; z-index: 2;
  max-width: 1160px; margin: 0 auto; padding: 0 28px;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
  width: 100%;
}
.hero-eyebrow {
  display: flex; flex-wrap: wrap; gap: 6px 0; font-size: 12.5px; letter-spacing: .12em;
  color: rgba(255,255,255,.78); margin-bottom: 26px;
  animation: fade-up .9s var(--ease) both;
}
.hero-eyebrow span { display: inline-flex; align-items: center; }
.hero-eyebrow span + span::before {
  content: ""; width: 1px; height: 12px; background: rgba(255,255,255,.35); margin: 0 14px;
}
.hero-catch {
  font-family: var(--serif); font-weight: 800;
  font-size: clamp(38px, 4.9vw, 68px); line-height: 1.32; letter-spacing: .04em;
  text-shadow: 0 6px 30px rgba(0,0,0,.25);
  animation: fade-up 1s .15s var(--ease) both;
}
.hero-catch .line { display: block; white-space: nowrap; }
.hero-catch .dot { color: var(--gold); }
.hero-lead {
  margin-top: 28px; font-size: 15.5px; line-height: 2.1; color: rgba(255,255,255,.86);
  max-width: 560px; animation: fade-up 1s .3s var(--ease) both;
}
.hero-name {
  margin-top: 34px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 18px;
  padding-left: 22px; border-left: 2px solid var(--gold);
  animation: fade-up 1s .42s var(--ease) both;
}
.hero-name-role { width: 100%; font-size: 13px; letter-spacing: .14em; color: rgba(255,255,255,.75); }
.hero-name-main { font-family: var(--serif); font-size: 30px; font-weight: 700; letter-spacing: .16em; }
.hero-name-kana { font-family: var(--en); font-size: 15px; letter-spacing: .3em; color: var(--gold); }
.hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 14px; animation: fade-up 1s .55s var(--ease) both; }

.hero-visual { position: relative; justify-self: end; width: 100%; max-width: 460px; animation: fade-in 1.4s .3s var(--ease) both; }
.hero-photo {
  position: relative; aspect-ratio: 4 / 5; border-radius: 230px 230px 8px 8px; overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(16,38,63,0) 55%, rgba(16,38,63,.55) 100%);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 45%; transform: scale(1.02); }
.hero-ring {
  position: absolute; width: 150px; height: 150px; border-radius: 50%;
  border: 1.5px solid var(--gold); left: -48px; bottom: 48px; opacity: .8;
}
.hero-ring::before {
  content: ""; position: absolute; inset: 14px; border-radius: 50%;
  border: 1px dashed rgba(217,150,43,.5);
}
.hero-tag {
  position: absolute; right: -18px; top: 42%;
  background: var(--white); color: var(--ai); padding: 16px 20px 14px;
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  display: flex; flex-direction: column; line-height: 1.2;
}
.hero-tag-en { font-family: var(--en); font-style: italic; font-size: 26px; color: var(--gold); }
.hero-tag-ja { font-family: var(--serif); font-size: 14px; letter-spacing: .2em; margin-top: 6px; }

.hero-stats {
  position: relative; z-index: 2; margin: 70px auto 0; max-width: 1160px; width: 100%; padding: 0 28px 56px;
  animation: fade-up 1s .7s var(--ease) both;
}
.hero-stats dl {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.18);
}
.hero-stats .stat { padding: 22px 8px 6px; position: relative; }
.hero-stats .stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 26px; bottom: 10px; width: 1px; background: rgba(255,255,255,.14);
}
.hero-stats .stat + .stat { padding-left: 28px; }
.hero-stats dt { font-size: 12px; letter-spacing: .16em; color: rgba(255,255,255,.65); }
.hero-stats dd { font-family: var(--en); font-size: 42px; font-weight: 600; line-height: 1.1; margin-top: 4px; color: #fff; }
.hero-stats dd small { font-family: var(--sans); font-size: 12px; font-weight: 500; margin-left: 4px; color: rgba(255,255,255,.8); letter-spacing: .08em; }
.hero-stats .stat-note { display: block; font-family: var(--sans); font-size: 11px; color: rgba(255,255,255,.55); letter-spacing: .06em; margin-top: 2px; }

.scroll-hint {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 3;
  width: 1px; height: 40px; overflow: hidden;
}
.scroll-hint span {
  position: absolute; left: 0; top: 0; width: 1px; height: 100%;
  background: linear-gradient(180deg, transparent, var(--gold));
  animation: scroll-line 2s var(--ease) infinite;
}
@keyframes scroll-line { 0% { transform: translateY(-100%); } 60%, 100% { transform: translateY(100%); } }

@keyframes fade-up { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ===== 共通セクション ===== */
.section { padding: 120px 0; position: relative; }
.sec-head { margin-bottom: 56px; }
.sec-eyebrow {
  font-family: var(--en); font-style: italic; font-size: 20px; letter-spacing: .08em;
  color: var(--gold); line-height: 1; margin-bottom: 14px;
  display: flex; align-items: center; gap: 14px;
}
.sec-eyebrow::before { content: ""; width: 32px; height: 1px; background: var(--gold); }
.sec-title {
  font-family: var(--serif); font-weight: 700; font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: .06em; line-height: 1.4; color: var(--ai);
}
.sec-lead { margin-top: 18px; color: var(--ink-2); max-width: 640px; }
.sec-note { margin-top: 14px; font-size: 13px; color: var(--ink-3); }

/* スクロール表示 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.service-grid .reveal:nth-child(2), .voice-grid .reveal:nth-child(2), .message-grid .reveal:nth-child(2) { transition-delay: .12s; }
.service-grid .reveal:nth-child(3), .voice-grid .reveal:nth-child(3), .message-grid .reveal:nth-child(3) { transition-delay: .24s; }
.service-grid .reveal:nth-child(4) { transition-delay: .36s; }

/* ===== できること ===== */
.section-service { background: var(--white); }
.section-service::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-card {
  position: relative; background: var(--kinari); border-radius: 10px; padding: 40px 28px 34px;
  border: 1px solid var(--line); overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.service-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent 70%);
  transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-num { font-family: var(--en); font-size: 40px; font-weight: 500; color: var(--gold); line-height: 1; display: block; }
.service-card h3 {
  font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--ai);
  margin: 18px 0 14px; line-height: 1.55; letter-spacing: .04em;
}
.service-card h3 small { display: block; font-family: var(--sans); font-size: 12px; font-weight: 500; color: var(--ink-3); letter-spacing: .1em; margin-top: 4px; }
.service-card p { font-size: 14.5px; color: var(--ink-2); line-height: 1.95; }

/* ===== 講演実績 ===== */
.section-lecture { background: var(--kinari); }
.lecture-summary {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 60px;
}
.lecture-summary-item {
  background: var(--ai); color: #fff; border-radius: 10px; padding: 28px 30px;
  display: flex; flex-direction: column; gap: 6px;
  background-image: radial-gradient(circle at 100% 0, rgba(255,255,255,.12), transparent 55%);
  box-shadow: var(--shadow-md);
}
.lecture-summary-item .num { font-family: var(--en); font-size: 52px; font-weight: 600; line-height: 1; }
.lecture-summary-item .num small { font-family: var(--sans); font-size: 13px; margin-left: 6px; font-weight: 500; letter-spacing: .1em; }
.lecture-summary-item .label { font-size: 13.5px; letter-spacing: .1em; color: rgba(255,255,255,.85); }
.lecture-summary-item .label em { display: block; font-style: normal; font-size: 11px; color: rgba(255,255,255,.55); letter-spacing: .04em; margin-top: 2px; }

.lecture-list { border-top: 1px solid var(--line); }
.lecture-item {
  display: grid; grid-template-columns: 150px 1fr; gap: 28px;
  padding: 34px 8px; border-bottom: 1px solid var(--line); position: relative;
  transition: background .3s;
}
.lecture-item:hover { background: rgba(255,255,255,.6); }
.lecture-date { display: flex; flex-direction: column; line-height: 1; padding-top: 6px; }
.lecture-date .y { font-family: var(--en); font-size: 30px; font-weight: 600; color: var(--ai); letter-spacing: .02em; }
.lecture-date .md { font-family: var(--en); font-size: 17px; color: var(--gold); margin-top: 8px; letter-spacing: .1em; }
.lecture-org { font-size: 13px; color: var(--ink-2); letter-spacing: .04em; }
.lecture-org .place {
  display: inline-block; margin-left: 8px; padding: 1px 9px; border-radius: 3px;
  background: var(--ai-soft); color: var(--ai); font-size: 11.5px; letter-spacing: .08em;
}
.lecture-body h3 {
  font-family: var(--serif); font-size: 19px; font-weight: 700; line-height: 1.65;
  margin: 8px 0 6px; color: var(--ink); letter-spacing: .02em;
}
.lecture-note { font-size: 13px; color: var(--ink-3); }
.lecture-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 10px;
  font-size: 13px; color: var(--ai); border-bottom: 1px solid var(--gold); padding-bottom: 1px;
  transition: color .3s;
}
.lecture-link::after { content: "↗"; font-size: 11px; color: var(--gold); }
.lecture-link:hover { color: var(--gold-deep); }
.lecture-more {
  margin-top: 30px; padding: 26px 30px; border-radius: 10px;
  background: var(--gold-soft); border: 1px dashed rgba(217,150,43,.5);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 22px;
}
.lecture-more strong { font-family: var(--serif); font-size: 22px; color: var(--gold-deep); letter-spacing: .06em; }
.lecture-more span { font-size: 13.5px; color: var(--ink-2); flex: 1 1 320px; }

/* ===== 受講者の声 ===== */
.section-voice { background: var(--white); }
.voice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.voice-card {
  position: relative; background: var(--kinari); border-radius: 10px; padding: 48px 30px 30px;
  border: 1px solid var(--line); display: flex; flex-direction: column;
}
.voice-card::before {
  content: "“"; position: absolute; left: 24px; top: 6px;
  font-family: var(--en); font-size: 84px; line-height: 1; color: var(--gold); opacity: .6;
}
.voice-card p { font-size: 15px; line-height: 2; flex: 1; }
.voice-card footer {
  margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--ink-2); letter-spacing: .06em;
}
.voice-card footer::before { content: "— "; color: var(--gold); }

/* ===== 思い ===== */
.section-message {
  background: var(--ai-deep); color: #fff; overflow: hidden;
}
.message-photo {
  position: absolute; inset: 0; opacity: .22;
  mask-image: linear-gradient(90deg, transparent 30%, #000 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000 100%);
}
.message-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.section-message .container { position: relative; z-index: 1; }
.section-message .sec-title { color: #fff; }
.message-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.message-block { padding-top: 26px; border-top: 1px solid rgba(255,255,255,.2); position: relative; }
.message-block::before {
  content: ""; position: absolute; left: 0; top: -1px; width: 48px; height: 1px; background: var(--gold);
}
.message-no {
  font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: .2em;
  display: inline-block; margin-bottom: 10px;
}
.message-block h3 { font-family: var(--serif); font-size: 22px; font-weight: 700; letter-spacing: .06em; margin-bottom: 16px; }
.message-block p { font-size: 14.5px; line-height: 2.05; color: rgba(255,255,255,.85); }
.motto { margin-top: 72px; text-align: center; padding: 44px 20px; border: 1px solid rgba(217,150,43,.4); border-radius: 10px; position: relative; }
.motto::before, .motto::after {
  content: ""; position: absolute; width: 18px; height: 18px; border-color: var(--gold); border-style: solid;
}
.motto::before { left: -1px; top: -1px; border-width: 2px 0 0 2px; }
.motto::after { right: -1px; bottom: -1px; border-width: 0 2px 2px 0; }
.motto-label { font-size: 12.5px; letter-spacing: .2em; color: rgba(255,255,255,.65); margin-bottom: 14px; }
.motto-text { font-family: var(--serif); font-size: clamp(20px, 2.6vw, 30px); letter-spacing: .12em; color: #fff; line-height: 1.8; }

/* ===== プロフィール ===== */
.section-profile { background: var(--kinari); }
.profile-grid { display: grid; grid-template-columns: 300px 1fr; gap: 60px; align-items: start; }
.profile-photo { text-align: center; }
.profile-photo figure {
  position: relative; width: 220px; margin: 0 auto; border-radius: 110px 110px 8px 8px; overflow: hidden;
  box-shadow: var(--shadow-md); border: 4px solid var(--white);
}
.profile-photo figure::after {
  content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(27,58,92,.08);
}
.profile-photo img { width: 100%; aspect-ratio: 200 / 288; object-fit: cover; }
.profile-name { font-family: var(--serif); font-size: 26px; font-weight: 700; letter-spacing: .16em; color: var(--ai); margin-top: 24px; line-height: 1.3; }
.profile-name span { display: block; font-family: var(--sans); font-size: 12px; font-weight: 500; color: var(--ink-3); letter-spacing: .3em; margin-top: 6px; }
.profile-role { font-size: 13px; color: var(--ink-2); margin-top: 10px; letter-spacing: .06em; }
.profile-intro { font-size: 15.5px; line-height: 2.1; }
.profile-intro strong { color: var(--ai); background: linear-gradient(transparent 62%, var(--gold-soft) 62%); font-weight: 700; }
.profile-sub {
  font-family: var(--serif); font-size: 17px; color: var(--ai); letter-spacing: .1em;
  margin: 34px 0 16px; display: flex; align-items: center; gap: 12px;
}
.profile-sub::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.profile-titles li { position: relative; padding-left: 20px; font-size: 14.5px; line-height: 2; }
.profile-titles li::before {
  content: ""; position: absolute; left: 0; top: .9em; width: 8px; height: 8px;
  border-radius: 50%; background: var(--gold);
}
.career { margin-top: 70px; }
.career-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.career-list > div { display: grid; grid-template-columns: 64px 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.career-list dt { font-family: var(--en); font-size: 20px; font-weight: 600; color: var(--gold-deep); letter-spacing: .04em; }
.career-list dd { font-size: 14px; line-height: 1.85; color: var(--ink-2); }

/* ===== 発信・メディア ===== */
.section-media { background: var(--white); }
.media-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 26px; align-items: stretch; }
.media-kicker { font-family: var(--en); font-style: italic; font-size: 22px; color: var(--gold); line-height: 1; display: block; margin-bottom: 18px; }
.media-radio {
  background: linear-gradient(160deg, var(--ai) 0%, var(--ai-deep) 100%); color: #fff;
  border-radius: 12px; padding: 40px 36px; position: relative; overflow: hidden; box-shadow: var(--shadow-md);
}
.media-radio::after {
  content: "ON AIR"; position: absolute; right: -10px; bottom: -14px;
  font-family: var(--en); font-size: 96px; font-weight: 600; color: rgba(255,255,255,.05); letter-spacing: .04em; line-height: 1;
}
.media-radio h3 { font-family: var(--serif); font-size: 21px; font-weight: 700; line-height: 1.7; letter-spacing: .04em; }
.media-radio p { margin-top: 16px; font-size: 14px; line-height: 2; color: rgba(255,255,255,.82); }
.media-videos { background: var(--kinari); border: 1px solid var(--line); border-radius: 12px; padding: 36px 36px 28px; }
.media-videos li { border-bottom: 1px solid var(--line); }
.media-videos li:last-child { border-bottom: 0; }
.media-videos a {
  display: flex; align-items: center; gap: 16px; padding: 13px 4px;
  font-size: 14.5px; color: var(--ink); transition: color .3s, padding-left .3s var(--ease);
}
.media-videos a:hover { color: var(--ai); padding-left: 12px; }
.media-videos a::after { content: "▶"; margin-left: auto; font-size: 10px; color: var(--gold); }
.v-tag {
  flex: none; font-size: 11px; letter-spacing: .08em; padding: 3px 10px; border-radius: 3px;
  background: var(--ai-soft); color: var(--ai); min-width: 108px; text-align: center;
}

/* ===== 講師料 ===== */
.section-fee { background: var(--kinari); padding: 0 0 120px; }
.fee-band {
  text-align: center; padding: 60px 40px; border-radius: 12px;
  background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.fee-band .sec-eyebrow { justify-content: center; }
.fee-band .sec-eyebrow::before { display: none; }
.fee-band h2 { font-family: var(--serif); font-size: 26px; color: var(--ai); letter-spacing: .08em; }
.fee-band p { margin-top: 14px; color: var(--ink-2); font-size: 15px; }

/* ===== お問い合わせ ===== */
.section-contact { background: var(--white); }
.contact-form {
  display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px;
  background: var(--kinari); border: 1px solid var(--line); border-radius: 12px; padding: 48px;
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row-full { grid-column: 1 / -1; }
.form-row label { font-size: 13.5px; font-weight: 700; letter-spacing: .06em; color: var(--ai); }
.form-row label small { font-weight: 500; color: var(--ink-3); margin-left: 8px; font-size: 11.5px; }
.form-row input, .form-row select, .form-row textarea {
  font-family: var(--sans); font-size: 15px; padding: 13px 16px; border-radius: 6px;
  border: 1px solid var(--line); background: #fff; color: var(--ink); width: 100%;
  transition: border-color .3s, box-shadow .3s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(217,150,43,.18);
}
.form-row textarea { resize: vertical; }
.form-submit { grid-column: 1 / -1; text-align: center; margin-top: 10px; }
.form-submit .btn { min-width: 240px; }
.form-note { margin-top: 14px; font-size: 12.5px; color: var(--ink-3); }

/* ===== フッター ===== */
.site-footer { background: var(--ai-deep); color: #fff; padding: 48px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand img { width: 48px; height: 48px; border-radius: 50%; }
.footer-name { font-family: var(--serif); font-size: 20px; letter-spacing: .14em; font-weight: 700; }
.footer-role { font-size: 12.5px; color: rgba(255,255,255,.65); letter-spacing: .04em; margin-top: 2px; }
.footer-right { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.footer-sns { display: flex; gap: 14px; }
.footer-sns .sns {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 50%; color: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,.25), 0 0 0 5px transparent;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.footer-sns .sns:hover { transform: translateY(-3px); box-shadow: 0 0 0 1px rgba(255,255,255,.5), 0 10px 20px -8px rgba(0,0,0,.6); }
.footer-sns .sns-ig { background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%); }
.footer-sns .sns-fb { background: #1877F2; }
.footer-copy { font-family: var(--en); font-size: 13px; letter-spacing: .14em; color: rgba(255,255,255,.55); }

/* ============================================
   レスポンシブ
   ============================================ */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr .8fr; gap: 32px; }
}

@media (max-width: 860px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }
  .container { padding: 0 22px; }
  .section { padding: 84px 0; }
  .sec-head { margin-bottom: 40px; }

  /* ヘッダー（スマホ） */
  .header-inner { padding: 12px 18px; }
  .nav-toggle { display: block; }
  .global-nav {
    position: fixed; inset: 0; background: rgba(16,38,63,.96); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; z-index: 105;
  }
  .global-nav.open { opacity: 1; visibility: visible; }
  .global-nav ul { flex-direction: column; gap: 6px; }
  .global-nav a { font-family: var(--serif); font-size: 20px; letter-spacing: .14em; color: #fff !important; padding: 12px 20px; }
  .global-nav a::after { display: none; }
  .global-nav .nav-cta { margin: 16px 0 0; font-family: var(--sans); font-size: 15px; padding: 12px 34px; }
  .site-header.is-scrolled .nav-toggle.active span { background: #fff; }

  /* ファーストビュー（スマホ） */
  .hero { padding: 108px 0 0; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-eyebrow { font-size: 11.5px; margin-bottom: 20px; }
  .hero-eyebrow span + span::before { margin: 0 10px; }
  .hero-catch { font-size: clamp(34px, 10vw, 52px); }
  .hero-lead { font-size: 14.5px; margin-top: 22px; }
  .hero-name { margin-top: 28px; }
  .hero-name-main { font-size: 26px; }
  .hero-actions { margin-top: 30px; }
  .hero-actions .btn { width: 100%; }
  .hero-visual { justify-self: center; max-width: 320px; }
  .hero-photo { aspect-ratio: 4 / 4.6; border-radius: 160px 160px 8px 8px; }
  .hero-ring { width: 110px; height: 110px; left: -28px; bottom: 28px; }
  .hero-tag { right: -10px; top: 40%; padding: 12px 16px 10px; }
  .hero-tag-en { font-size: 22px; }
  .hero-crane { min-width: 360px; right: -30vw; top: 22%; }
  .hero-stats { margin-top: 48px; padding-bottom: 48px; }
  .hero-stats dl { grid-template-columns: repeat(2, 1fr); gap: 6px 0; }
  .hero-stats .stat { padding: 18px 6px 8px; }
  .hero-stats .stat + .stat { padding-left: 20px; }
  .hero-stats .stat:nth-child(3)::before { display: none; }
  .hero-stats .stat:nth-child(3) { padding-left: 6px; }
  .hero-stats dd { font-size: 36px; }
  .scroll-hint { display: none; }

  .service-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 32px 24px 28px; }

  .lecture-summary { grid-template-columns: 1fr; gap: 12px; margin-bottom: 44px; }
  .lecture-summary-item { flex-direction: row; align-items: baseline; justify-content: space-between; padding: 20px 24px; }
  .lecture-summary-item .num { font-size: 40px; }
  .lecture-summary-item .label { text-align: right; }
  .lecture-item { grid-template-columns: 1fr; gap: 10px; padding: 26px 4px; }
  .lecture-date { flex-direction: row; align-items: baseline; gap: 10px; padding-top: 0; }
  .lecture-date .y { font-size: 24px; }
  .lecture-date .md { font-size: 15px; margin-top: 0; }
  .lecture-body h3 { font-size: 17px; }
  .lecture-more { padding: 20px 22px; }

  .voice-grid { grid-template-columns: 1fr; gap: 18px; }
  .voice-card { padding: 44px 24px 26px; }

  .message-photo { mask-image: linear-gradient(180deg, transparent 20%, #000 100%); -webkit-mask-image: linear-gradient(180deg, transparent 20%, #000 100%); opacity: .16; }
  .message-grid { grid-template-columns: 1fr; gap: 36px; }
  .motto { margin-top: 56px; padding: 34px 18px; }
  .motto-text { font-size: 19px; }

  .profile-grid { grid-template-columns: 1fr; gap: 40px; }
  .profile-photo figure { width: 190px; }
  .career { margin-top: 50px; }
  .career-list { grid-template-columns: 1fr; }
  .career-list > div { grid-template-columns: 56px 1fr; }

  .media-grid { grid-template-columns: 1fr; }
  .media-radio { padding: 32px 26px; }
  .media-radio h3 { font-size: 18px; }
  .media-videos { padding: 26px 20px 20px; }
  .media-videos a { flex-wrap: wrap; gap: 8px 12px; font-size: 14px; }
  .v-tag { min-width: 0; }

  .section-fee { padding-bottom: 84px; }
  .fee-band { padding: 44px 24px; }
  .fee-band h2 { font-size: 22px; }

  .contact-form { grid-template-columns: 1fr; padding: 30px 22px; gap: 18px; }
  .form-submit .btn { width: 100%; }

  .site-footer { padding: 40px 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-right { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}