/* ==================================================
   Lesson Profile Page (Scope: #ak-profile-page)
   ================================================== */
#ak-profile-page {
    --navy-900:#1a2c5e; --navy-700:#274087; --navy-500:#435587; --navy-400:#4b6fbf;
    --navy-100:#e0e4ee; --navy-50:#F6F8FC;
    --ink-1:#14161a; --ink-2:#2a2f3a; --ink-4:#555; --ink-5:#666; --ink-6:#888;
    --serif: "Noto Serif JP", serif;
    --sans: "Noto Sans JP", sans-serif;
    font-family: var(--sans); color: var(--ink-2); line-height: 1.85; background: #fff;
    -webkit-font-smoothing: antialiased;
}
#ak-profile-page * { box-sizing: border-box; }
#ak-profile-page .ak-container { max-width: 920px; margin: 0 auto; padding: 0 24px; }

/* Hero / message */
#ak-profile-page .ak-hero {
    padding: 96px 0 72px;
    background:
        radial-gradient(circle at 80% 0%, rgba(75,111,191,0.08), transparent 55%),
        linear-gradient(180deg, #fff 0%, var(--navy-50) 100%);
}
#ak-profile-page .ak-eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 12px; letter-spacing: 0.18em; color: var(--navy-700);
    font-weight: 600; text-transform: uppercase; margin-bottom: 18px;
}
#ak-profile-page .ak-eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--navy-700); }
#ak-profile-page .ak-hero h1 {
    font-family: var(--serif); font-weight: 700; font-size: clamp(28px, 4.2vw, 42px);
    color: var(--navy-900); line-height: 1.45; letter-spacing: 0.02em; margin: 0 0 28px;
}
#ak-profile-page .ak-hero h1 .lift {
    background: linear-gradient(transparent 68%, rgba(39,64,135,0.14) 68%); padding: 0 6px;
}

#ak-profile-page .ak-message {
    display: grid; grid-template-columns: 220px 1fr; gap: 48px; align-items: center; margin-top: 48px;
}
#ak-profile-page .ak-portrait { position: relative; }
#ak-profile-page .ak-portrait .frame {
    width: 220px; height: 220px; border-radius: 50%; overflow: hidden;
    box-shadow: 0 20px 50px -20px rgba(39,64,135,0.4), 0 0 0 1px var(--navy-100);
    background: var(--navy-50);
}
#ak-profile-page .ak-portrait .frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
#ak-profile-page .ak-portrait .ring {
    position: absolute; inset: -14px; border: 1px dashed var(--navy-100); border-radius: 50%; pointer-events: none;
}
#ak-profile-page .ak-portrait .caption {
    position: absolute; top: -8px; right: -10px;
    font-family: var(--serif); font-size: 13px; color: var(--navy-700);
    background: #fff; border: 1px solid var(--navy-100); padding: 6px 12px; border-radius: 999px;
    box-shadow: 0 4px 12px rgba(39,64,135,0.08);
}
#ak-profile-page .ak-msg-body { font-size: 15.5px; color: var(--ink-2); line-height: 1.95; }
#ak-profile-page .ak-msg-body .name { font-family: var(--serif); font-weight: 600; color: var(--navy-700); }
#ak-profile-page .ak-msg-body em.lift {
    font-style: normal; font-weight: 700; color: var(--ink-1);
    background: linear-gradient(transparent 68%, rgba(39,64,135,0.14) 68%); padding: 0 4px;
}
#ak-profile-page .ak-msg-cta {
    margin-top: 22px; display: inline-flex; align-items: center; gap: 8px;
    font-size: 13.5px; font-weight: 600; color: var(--navy-700); text-decoration: none;
    border-bottom: 1px solid var(--navy-700); padding-bottom: 4px;
    transition: gap .25s ease;
}
#ak-profile-page .ak-msg-cta:hover { gap: 14px; }
#ak-profile-page .ak-msg-cta i { width: 14px; height: 14px; }

/* Sections */
#ak-profile-page .ak-section { padding: 80px 0; border-top: 1px solid var(--navy-100); }
#ak-profile-page .ak-point-head {
    display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: baseline; margin-bottom: 32px;
}
#ak-profile-page .ak-num {
    font-family: var(--serif); font-weight: 500;
    font-size: 56px; line-height: 1; color: var(--navy-700); letter-spacing: -0.02em;
    position: relative; padding-right: 28px;
}
#ak-profile-page .ak-num::after {
    content: ""; position: absolute; right: 0; top: 14px; bottom: 12px; width: 1px; background: var(--navy-100);
}
#ak-profile-page .ak-num-label {
    display: block; font-family: var(--sans); font-size: 10px; letter-spacing: 0.22em;
    color: var(--ink-6); margin-top: 6px; font-weight: 500;
}
#ak-profile-page .ak-point-title {
    font-family: var(--serif); font-weight: 700;
    font-size: clamp(22px, 2.6vw, 30px); line-height: 1.5; letter-spacing: 0.02em;
    color: var(--navy-900); margin: 0;
}
#ak-profile-page .ak-body { font-size: 15px; line-height: 2; color: var(--ink-4); margin: 0 0 36px; }
#ak-profile-page .ak-body em.lift {
    font-style: normal; font-weight: 700; color: var(--ink-1);
    background: linear-gradient(transparent 68%, rgba(39,64,135,0.14) 68%); padding: 0 4px;
}

/* Image pair */
#ak-profile-page .ak-pair {
    display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; margin-bottom: 36px;
}
#ak-profile-page .ak-pair figure { margin: 0; }
#ak-profile-page .ak-pair figcaption {
    margin-top: 10px; font-size: 11px; letter-spacing: 0.12em; color: var(--ink-6);
    text-align: center; font-weight: 500;
}
#ak-profile-page .ak-pair-img {
    width: 100%; aspect-ratio: 8/5; object-fit: cover;
    border-radius: 4px; background: var(--navy-50);
    box-shadow: 8px 8px 0 var(--navy-100);
}
#ak-profile-page .ak-pair-arrow {
    width: 56px; height: 56px; border-radius: 50%;
    border: 1px solid var(--navy-100); display: grid; place-items: center;
    color: var(--navy-700); background: #fff;
    box-shadow: 0 4px 12px rgba(39,64,135,0.06); flex-shrink: 0;
}
#ak-profile-page .ak-pair-arrow i { width: 20px; height: 20px; }

/* Outline link */
#ak-profile-page .ak-link-row { display: flex; justify-content: center; }
#ak-profile-page .ak-link {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 14px; font-weight: 600; color: var(--navy-700); text-decoration: none;
    padding: 14px 28px; border: 1px solid var(--navy-700); border-radius: 999px;
    background: #fff; transition: all .3s ease;
}
#ak-profile-page .ak-link:hover {
    background: var(--navy-700); color: #fff; transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(39,64,135,0.18);
}
#ak-profile-page .ak-link i { width: 14px; height: 14px; }

/* Closing */
#ak-profile-page .ak-closing {
    text-align: center; padding: 96px 0; background: var(--navy-50);
    border-top: 1px solid var(--navy-100);
}
#ak-profile-page .ak-closing h2 {
    font-family: var(--serif); font-weight: 700; font-size: 26px;
    color: var(--navy-900); margin: 0 0 24px; letter-spacing: 0.05em;
}
#ak-profile-page .ak-cta {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--navy-700); color: #fff; text-decoration: none;
    padding: 18px 44px; border-radius: 999px; font-weight: 700; font-size: 15px;
    box-shadow: 0 10px 24px -8px rgba(39,64,135,0.45);
    transition: all .3s ease;
}
#ak-profile-page .ak-cta:hover {
    background: var(--navy-500); transform: translateY(-2px);
    box-shadow: 0 16px 32px -8px rgba(39,64,135,0.6); color: #fff;
}

@media (max-width: 760px) {
    #ak-profile-page .ak-hero { padding: 64px 0 48px; }
    #ak-profile-page .ak-message { grid-template-columns: 1fr; gap: 28px; text-align: left; }
    #ak-profile-page .ak-portrait { margin: 0 auto; }
    #ak-profile-page .ak-section { padding: 56px 0; }
    #ak-profile-page .ak-point-head { gap: 18px; }
    #ak-profile-page .ak-num { font-size: 40px; padding-right: 18px; }
    #ak-profile-page .ak-num::after { top: 8px; bottom: 8px; }
    #ak-profile-page .ak-pair { grid-template-columns: 1fr; }
    #ak-profile-page .ak-pair-arrow { transform: rotate(90deg); margin: 4px auto; }
    #ak-profile-page .ak-pair-img { box-shadow: 5px 5px 0 var(--navy-100); }
}

/* ==================================================
   Lecturer Profiles Page (Scope: #ak-lecturer-page)
   ================================================== */
#ak-lecturer-page {
    --navy-900:#1a2c5e; --navy-700:#274087; --navy-500:#435587; --navy-400:#4b6fbf;
    --navy-200:#c4cce0; --navy-100:#e0e4ee; --navy-50:#F6F8FC;
    --purple-800:#6b21a8; --purple-600:#9333ea;
    --purple-200:#e9d5ff; --purple-100:#f3e8ff; --purple-50:#faf5ff;
    --ink-1:#14161a; --ink-2:#2a2f3a; --ink-3:#333; --ink-4:#555; --ink-5:#666; --ink-6:#888;
    --serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
    --sans:  "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
    font-family: var(--sans); color: var(--ink-2); line-height: 1.85; -webkit-font-smoothing: antialiased;
}
#ak-lecturer-page *, #ak-lecturer-page *::before, #ak-lecturer-page *::after { box-sizing: border-box; }
#ak-lecturer-page img { display: block; max-width: 100%; }

/* Container */
#ak-lecturer-page .lp-container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
#ak-lecturer-page .lp-container--narrow { max-width: 920px; margin: 0 auto; padding: 0 24px; }

/* ---- Hero ---- */
#ak-lecturer-page .lp-hero {
    position: relative;
    padding: 88px 0 72px;
    background:
        radial-gradient(1200px 400px at 80% -10%, rgba(75,111,191,0.10), transparent 60%),
        linear-gradient(180deg, #fff 0%, var(--navy-50) 100%);
    overflow: hidden;
}
#ak-lecturer-page .lp-hero::after {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image:
        linear-gradient(var(--navy-100) 1px, transparent 1px),
        linear-gradient(90deg, var(--navy-100) 1px, transparent 1px);
    background-size: 40px 40px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, rgba(0,0,0,0.35), transparent 70%);
            mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, rgba(0,0,0,0.35), transparent 70%);
    opacity: 0.45;
}
#ak-lecturer-page .lp-hero-grid {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1fr 360px; gap: 56px; align-items: center;
}
#ak-lecturer-page .lp-eyebrow {
    display: inline-flex; align-items: center; gap: 12px;
    font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--navy-700); font-weight: 700;
}
#ak-lecturer-page .lp-eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--navy-700); display: inline-block; }
#ak-lecturer-page .lp-hero h1 {
    font-family: var(--serif); font-weight: 700; font-size: clamp(30px, 4.4vw, 46px);
    color: var(--navy-900); line-height: 1.45; letter-spacing: 0.02em; margin: 18px 0 8px;
}
#ak-lecturer-page .lp-ruby {
    display: block; font-size: 14px; letter-spacing: 0.3em; color: var(--navy-700);
    font-family: var(--sans); font-weight: 500; margin-top: 14px;
}
#ak-lecturer-page .lp-hero-tagline {
    font-family: var(--serif); color: var(--ink-3); font-size: 16px; line-height: 1.95;
    margin-top: 18px; max-width: 520px;
}
#ak-lecturer-page .lp-lift { background: linear-gradient(transparent 70%, var(--purple-200) 70%); padding: 0 4px; }
#ak-lecturer-page .lp-hero-stats { display: flex; gap: 28px; margin-top: 32px; flex-wrap: wrap; }
#ak-lecturer-page .lp-stat {
    background: #fff; border: 1px solid var(--navy-100); border-radius: 14px;
    padding: 14px 20px; min-width: 132px;
    box-shadow: 0 4px 14px rgba(39,64,135,0.06);
}
#ak-lecturer-page .lp-stat-num {
    font-family: var(--serif); font-weight: 700; font-size: 26px; color: var(--navy-700); line-height: 1;
}
#ak-lecturer-page .lp-stat-num small { font-size: 14px; margin-left: 2px; }
#ak-lecturer-page .lp-stat-label { font-size: 11.5px; color: var(--ink-5); margin-top: 6px; letter-spacing: 0.08em; }

/* Portrait */
#ak-lecturer-page .lp-portrait {
    position: relative; width: 360px; aspect-ratio: 4/5;
    border-radius: 18px; overflow: hidden;
    box-shadow: 14px 14px 0 var(--navy-100), 0 30px 60px -30px rgba(39,64,135,0.4);
    background: var(--navy-100);
}
#ak-lecturer-page .lp-portrait img { width: 100%; height: 100%; object-fit: cover; }
#ak-lecturer-page .lp-badge {
    position: absolute; left: -2px; top: 22px; background: #f45963; color: #fff;
    padding: 8px 18px; font-size: 12px; letter-spacing: 0.18em; font-weight: 600;
    border-radius: 4px; box-shadow: 0 6px 14px rgba(39,64,135,0.3);
}

/* ---- Section ---- */
#ak-lecturer-page .lp-section { padding: 88px 0; }
#ak-lecturer-page .lp-section + .lp-section { border-top: 1px dashed var(--navy-100); }
#ak-lecturer-page .lp-section-head { text-align: center; margin-bottom: 48px; }
#ak-lecturer-page .lp-kicker {
    display: inline-block; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--navy-700); font-weight: 700;
}
#ak-lecturer-page .lp-section-head h2 {
    font-family: var(--serif); font-weight: 700; font-size: clamp(24px, 3vw, 32px);
    color: var(--ink-1); margin: 8px 0 0; letter-spacing: 0.04em;
}
#ak-lecturer-page .lp-section-head h2::after {
    content: ""; display: block; width: 36px; height: 3px; background: var(--navy-700);
    margin: 16px auto 0; border-radius: 2px;
}
#ak-lecturer-page .lp-section-lead { margin-top: 14px; color: var(--ink-5); font-size: 14.5px; }

/* ---- Career ---- */
#ak-lecturer-page .lp-career { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
#ak-lecturer-page .lp-career-group {
    background: #fff; border: 1px solid var(--navy-100); border-radius: 16px;
    padding: 28px 28px 24px;
    box-shadow: 0 4px 16px rgba(39,64,135,0.04);
    transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s, border-color .3s;
}
#ak-lecturer-page .lp-career-group:hover {
    transform: translateY(-3px); border-color: var(--navy-200);
    box-shadow: 0 10px 30px rgba(39,64,135,0.10);
}
#ak-lecturer-page .lp-career-group__head {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px dashed var(--navy-100);
}
#ak-lecturer-page .lp-career-group__icon {
    width: 44px; height: 44px; flex: 0 0 44px; border-radius: 12px;
    background: var(--navy-50); color: var(--navy-700);
    display: grid; place-items: center; border: 1px solid var(--navy-100);
}
#ak-lecturer-page .lp-career-group__icon i { width: 22px; height: 22px; }
#ak-lecturer-page .lp-career-group--accent .lp-career-group__icon {
    background: var(--purple-100); color: var(--purple-800); border-color: var(--purple-200);
}
#ak-lecturer-page .lp-career-group__title {
    font-family: var(--serif); font-weight: 700; color: var(--ink-1); font-size: 18px; line-height: 1.2;
}
#ak-lecturer-page .lp-career-group__sub {
    font-size: 11.5px; color: var(--ink-6); letter-spacing: 0.18em; text-transform: uppercase; margin-top: 4px;
}
#ak-lecturer-page .lp-career-list { list-style: none; margin: 0; padding: 0; }
#ak-lecturer-page .lp-career-list li {
    display: grid; grid-template-columns: 64px 1fr; gap: 14px;
    padding: 12px 0; border-bottom: 1px solid var(--navy-50);
    font-size: 14.5px; line-height: 1.7;
}
#ak-lecturer-page .lp-career-list li:last-child { border-bottom: 0; padding-bottom: 0; }
#ak-lecturer-page .lp-yr {
    font-family: var(--serif); color: var(--navy-700); font-weight: 600;
    font-size: 13px; letter-spacing: 0.04em; padding-top: 1px;
}
#ak-lecturer-page .lp-yr--empty::before { content: "—"; color: var(--navy-200); }
#ak-lecturer-page .lp-desc { color: var(--ink-3); }
#ak-lecturer-page .lp-award {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 11px; color: var(--purple-800); background: var(--purple-100);
    padding: 2px 8px; border-radius: 999px; font-weight: 600; margin-right: 8px; vertical-align: 2px;
}
#ak-lecturer-page .lp-award i { width: 12px; height: 12px; }

/* ---- Message ---- */
#ak-lecturer-page .lp-message-wrap {
    position: relative;
    background:
        radial-gradient(800px 200px at 50% 0%, var(--purple-100), transparent 70%),
        var(--purple-50);
    padding: 88px 0;
}
#ak-lecturer-page .lp-message-card {
    position: relative; background: #fff;
    border: 1px solid var(--purple-200); border-radius: 20px;
    padding: 56px 56px 48px;
    box-shadow: 0 30px 60px -30px rgba(107,33,168,0.20);
    overflow: hidden;
}
#ak-lecturer-page .lp-message-card::before {
    content: "\201C"; position: absolute; top: -28px; left: 28px;
    font-family: var(--serif); font-size: 180px; color: var(--purple-200); line-height: 1;
    pointer-events: none;
}
#ak-lecturer-page .lp-message-card__kicker {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
    font-weight: 700; color: var(--purple-800);
}
#ak-lecturer-page .lp-message-card__kicker i { width: 14px; height: 14px; }
#ak-lecturer-page .lp-message-card h3 {
    font-family: var(--serif); font-weight: 700; font-size: clamp(22px, 2.6vw, 28px);
    color: var(--ink-1); margin: 12px 0 28px; letter-spacing: 0.03em; line-height: 1.5;
}
#ak-lecturer-page .lp-em {
    background: linear-gradient(transparent 68%, var(--purple-200) 68%); padding: 0 6px;
}
#ak-lecturer-page .lp-lead { font-size: 15.5px; color: var(--ink-2); line-height: 2.05; margin: 0; }
#ak-lecturer-page .lp-lead .lp-em { font-weight: 600; color: var(--ink-1); }
#ak-lecturer-page .lp-message-tags {
    display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 36px;
    padding-top: 24px; border-top: 1px dashed var(--purple-200);
}
#ak-lecturer-page .lp-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--purple-50); color: var(--purple-800);
    padding: 6px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 500;
    border: 1px solid var(--purple-200);
}
#ak-lecturer-page .lp-tag i { width: 12px; height: 12px; }
#ak-lecturer-page .lp-message-cta {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px;
}
#ak-lecturer-page .lp-signature { font-family: var(--serif); color: var(--ink-3); font-size: 14px; }
#ak-lecturer-page .lp-signature-name {
    font-size: 18px; font-weight: 600; color: var(--navy-700); margin-left: 8px; letter-spacing: 0.04em;
}
#ak-lecturer-page .lp-btn-primary {
    position: relative; display: inline-flex; align-items: center; gap: 10px;
    background: var(--purple-800); color: #fff;
    padding: 14px 28px; border-radius: 999px;
    font-size: 14px; font-weight: 600; text-decoration: none; letter-spacing: 0.04em;
    box-shadow: 0 8px 20px rgba(107,33,168,0.25);
    overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, background-color .25s;
}
#ak-lecturer-page .lp-btn-primary:hover {
    transform: translateY(-2px); background: var(--purple-600);
    box-shadow: 0 12px 28px rgba(107,33,168,0.35); color: #fff;
}
#ak-lecturer-page .lp-btn-primary i { width: 16px; height: 16px; }
#ak-lecturer-page .lp-btn-primary::after {
    content: ""; position: absolute; top: 0; left: -30%; width: 40px; height: 100%;
    background: linear-gradient(100deg, rgba(255,255,255,0) 10%, rgba(255,255,255,.45) 50%, rgba(255,255,255,0) 90%);
    transform: skewX(-20deg);
    animation: lp-shiny 3.4s ease-in-out infinite;
}
@keyframes lp-shiny { 0% { left: -30%; } 60%, 100% { left: 130%; } }

/* ---- Videos ---- */
#ak-lecturer-page .lp-videos-section { background: var(--navy-50); padding: 88px 0; }
#ak-lecturer-page .lp-videos-toolbar {
    display: grid; grid-template-columns: 1fr 1.3fr auto; gap: 14px;
    background: #fff; border: 1px solid var(--navy-100); border-radius: 14px;
    padding: 14px; margin-bottom: 32px; align-items: stretch;
}
#ak-lecturer-page .lp-field { display: flex; flex-direction: column; gap: 6px; }
#ak-lecturer-page .lp-field label {
    font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--ink-5); font-weight: 600; padding-left: 4px;
}
#ak-lecturer-page .lp-input,
#ak-lecturer-page .lp-select {
    width: 100%; height: 44px; padding: 0 14px;
    border: 1px solid var(--navy-100); border-radius: 10px; background: #fff;
    font-family: var(--sans); font-size: 14px; color: var(--ink-2);
    transition: border-color .2s, box-shadow .2s;
}
#ak-lecturer-page .lp-input:focus,
#ak-lecturer-page .lp-select:focus {
    outline: none; border-color: var(--navy-400); box-shadow: 0 0 0 3px rgba(75,111,191,0.15);
}
#ak-lecturer-page .lp-search-wrap { position: relative; }
#ak-lecturer-page .lp-search-wrap .lp-input { padding-left: 40px; }
#ak-lecturer-page .lp-search-wrap i {
    position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
    width: 16px; height: 16px; color: var(--ink-6);
}
#ak-lecturer-page .lp-toolbar-meta { align-self: end; padding: 0 8px 6px; font-size: 12px; color: var(--ink-5); }

#ak-lecturer-page .lp-video-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px;
}
#ak-lecturer-page .lp-video-card {
    background: #fff; border-radius: 14px; overflow: hidden;
    border: 1px solid var(--navy-100); cursor: pointer;
    display: flex; flex-direction: column;
    transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s, border-color .3s;
    box-shadow: 0 4px 12px rgba(39,64,135,0.05);
}
#ak-lecturer-page .lp-video-card:hover {
    transform: translateY(-4px); border-color: var(--navy-400);
    box-shadow: 0 16px 36px rgba(39,64,135,0.18);
}
#ak-lecturer-page .lp-video-thumb {
    position: relative; aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--navy-700), var(--navy-400));
    overflow: hidden;
}
#ak-lecturer-page .lp-video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
#ak-lecturer-page .lp-video-card:hover .lp-video-thumb img { transform: scale(1.06); }
#ak-lecturer-page .lp-video-thumb::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.45) 100%);
}
#ak-lecturer-page .lp-play-btn {
    position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(255,255,255,0.95); color: var(--navy-700);
    display: grid; place-items: center; z-index: 1;
    box-shadow: 0 8px 22px rgba(0,0,0,0.3);
    transition: transform .25s ease, background-color .25s;
}
#ak-lecturer-page .lp-play-btn i { width: 22px; height: 22px; margin-left: 3px; }
#ak-lecturer-page .lp-video-card:hover .lp-play-btn {
    background: var(--navy-700); color: #fff; transform: translate(-50%, -50%) scale(1.08);
}
#ak-lecturer-page .lp-duration {
    position: absolute; bottom: 10px; right: 10px; z-index: 1;
    background: rgba(0,0,0,0.7); color: #fff; font-size: 11px;
    padding: 3px 8px; border-radius: 4px; font-variant-numeric: tabular-nums;
}
#ak-lecturer-page .lp-video-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
#ak-lecturer-page .lp-video-genre {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--navy-700);
}
#ak-lecturer-page .lp-video-genre::before { content: ""; width: 6px; height: 6px; background: var(--navy-700); border-radius: 50%; }
#ak-lecturer-page .lp-video-card.lp-is-classic  .lp-video-genre                { color: var(--navy-700); }
#ak-lecturer-page .lp-video-card.lp-is-classic  .lp-video-genre::before        { background: var(--navy-700); }
#ak-lecturer-page .lp-video-card.lp-is-romantic .lp-video-genre                { color: var(--purple-800); }
#ak-lecturer-page .lp-video-card.lp-is-romantic .lp-video-genre::before        { background: var(--purple-800); }
#ak-lecturer-page .lp-video-card.lp-is-modern   .lp-video-genre                { color: #b45309; }
#ak-lecturer-page .lp-video-card.lp-is-modern   .lp-video-genre::before        { background: #b45309; }
#ak-lecturer-page .lp-video-card.lp-is-pop      .lp-video-genre                { color: #2c7a5c; }
#ak-lecturer-page .lp-video-card.lp-is-pop      .lp-video-genre::before        { background: #2c7a5c; }
#ak-lecturer-page .lp-video-title {
    font-family: var(--serif); font-weight: 700; font-size: 16.5px; line-height: 1.5;
    color: var(--ink-1); margin: 0;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2;
    overflow: hidden; text-overflow: ellipsis;
    min-height: calc(1.5em * 2);
}
#ak-lecturer-page .lp-video-composer {
    font-size: 12.5px; color: var(--ink-5); margin-top: 2px;
    display: flex; align-items: center; gap: 6px;
}
#ak-lecturer-page .lp-video-composer i { width: 12px; height: 12px; }
#ak-lecturer-page .lp-video-desc {
    font-size: 13px; color: var(--ink-4); line-height: 1.7; margin: 6px 0 0;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2;
    overflow: hidden; text-overflow: ellipsis;
}
#ak-lecturer-page .lp-video-empty {
    grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--ink-5);
    background: #fff; border: 1px dashed var(--navy-100); border-radius: 14px;
}
#ak-lecturer-page .lp-pagination { display: flex; justify-content: center; gap: 6px; margin-top: 36px; flex-wrap: wrap; }
#ak-lecturer-page .lp-pagination button {
    min-width: 38px; height: 38px; padding: 0 12px;
    border: 1px solid var(--navy-100); background: #fff; color: var(--ink-3);
    border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 500;
    transition: background-color .2s, border-color .2s, color .2s;
    font-family: inherit;
}
#ak-lecturer-page .lp-pagination button:hover:not(:disabled):not(.is-active) {
    background: var(--navy-50); border-color: var(--navy-200);
}
#ak-lecturer-page .lp-pagination button.is-active { background: var(--navy-700); color: #fff; border-color: var(--navy-700); }
#ak-lecturer-page .lp-pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Modal ---- */
#ak-lecturer-page .lp-modal {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(20,22,26,0.7);
    display: grid; place-items: center; padding: 24px;
    opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s;
    backdrop-filter: blur(4px);
}
#ak-lecturer-page .lp-modal.is-open { opacity: 1; visibility: visible; }
#ak-lecturer-page .lp-modal__panel {
    width: 100%; max-width: 880px; max-height: calc(100vh - 48px);
    background: #fff; border-radius: 16px; overflow: hidden;
    box-shadow: 0 40px 80px -20px rgba(0,0,0,0.5);
    display: flex; flex-direction: column;
    transform: translateY(10px); transition: transform .3s cubic-bezier(.4,0,.2,1);
    position: relative;
}
#ak-lecturer-page .lp-modal.is-open .lp-modal__panel { transform: translateY(0); }
#ak-lecturer-page .lp-modal__player { aspect-ratio: 16/9; background: #000; }
#ak-lecturer-page .lp-modal__player iframe { width: 100%; height: 100%; border: 0; display: block; }
#ak-lecturer-page .lp-modal__body { padding: 24px 28px 28px; overflow-y: auto; }
#ak-lecturer-page .lp-modal__close {
    position: absolute; top: 14px; right: 14px; z-index: 2;
    width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.95);
    border: 0; cursor: pointer; display: grid; place-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
#ak-lecturer-page .lp-modal__close i { width: 18px; height: 18px; color: var(--ink-2); }
#ak-lecturer-page .lp-modal__title {
    font-family: var(--serif); font-size: 22px; font-weight: 700;
    color: var(--ink-1); margin: 0 0 4px; line-height: 1.4;
}
#ak-lecturer-page .lp-modal__meta {
    display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
    color: var(--ink-5); font-size: 13px; margin: 8px 0 14px;
}
#ak-lecturer-page .lp-pill {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--navy-50); color: var(--navy-700);
    padding: 4px 10px; border-radius: 999px; font-weight: 600; font-size: 12px;
}
#ak-lecturer-page .lp-modal__desc { font-size: 14px; line-height: 1.9; color: var(--ink-3); margin: 0; }

/* モーダル表示中はスクロールを止める */
body.lp-no-scroll { overflow: hidden; }

/* ---- Responsive ---- */
@media (max-width: 880px) {
    #ak-lecturer-page .lp-hero { padding: 56px 0; }
    #ak-lecturer-page .lp-hero-grid { grid-template-columns: 1fr; gap: 36px; }
    #ak-lecturer-page .lp-portrait { width: 100%; max-width: 320px; margin: 0 auto; }
    #ak-lecturer-page .lp-career { grid-template-columns: 1fr; }
    #ak-lecturer-page .lp-videos-toolbar { grid-template-columns: 1fr; }
    #ak-lecturer-page .lp-toolbar-meta { display: none; }
    #ak-lecturer-page .lp-message-card { padding: 40px 28px 32px; }
    #ak-lecturer-page .lp-message-card::before { font-size: 120px; left: 14px; top: -18px; }
    #ak-lecturer-page .lp-section { padding: 60px 0; }
    #ak-lecturer-page .lp-videos-section { padding: 60px 0; }
    #ak-lecturer-page .lp-message-wrap { padding: 60px 0; }
}
@media (max-width: 520px) {
    #ak-lecturer-page .lp-hero h1 { font-size: 28px; }
    #ak-lecturer-page .lp-career-list li { grid-template-columns: 56px 1fr; gap: 10px; font-size: 14px; }
    #ak-lecturer-page .lp-video-grid { grid-template-columns: 1fr; }
}