/* ===========================================
   SUGUMEN Landing Page Styles
   AI Interview System — スグメン
   Brand Colors: #0066CC (Blue), #F5A623 (Orange Accent)
   =========================================== */

:root {
    --sg-primary:       #0066CC;
    --sg-primary-dark:  #004C99;
    --sg-primary-light: #00AAFF;
    --sg-accent:        #F5A623;
    --sg-accent-dark:   #D4861A;
    --sg-text:          #333333;
    --sg-text-light:    #666666;
    --sg-bg-light:      #F0F8FF;
    --sg-white:         #FFFFFF;
    --sg-border:        #E0ECF8;
    --sg-hero-dark1:    #001A33;
    --sg-hero-dark2:    #003366;
}

/* ===========================
   Base
   =========================== */
.sugumen-page {
    padding-top: 70px;
}

/* セクション共通タイトル */
.sg-section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--sg-text);
    position: relative;
}
.sg-section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--sg-primary), var(--sg-accent));
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* スクロールアニメーション */
.sg-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}
.sg-animate--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   Hero Section — リアル写真フルスクリーン背景
   =========================================== */
.sg-hero {
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 5rem 2rem 4rem;
}

/* リアル写真背景 */
.sg-hero__bg-photo {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    transform: scale(1.04); /* 微妙なズームで高級感 */
    transition: transform 8s ease-out;
}
.sugumen-page.loaded .sg-hero__bg-photo {
    transform: scale(1);
}

/* グラデーションオーバーレイ：左側テキストエリアを暗く、右側は少し明るく */
.sg-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        rgba(0, 15, 40, 0.82) 0%,
        rgba(0, 30, 70, 0.75) 45%,
        rgba(0, 20, 55, 0.60) 70%,
        rgba(0, 10, 35, 0.50) 100%
    );
    z-index: 1;
}

/* 微細パーティクル装飾 */
.sg-hero__overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(0, 170, 255, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* インナーレイアウト */
.sg-hero__inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* コンテンツ側 */
.sg-hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--sg-accent);
    margin-bottom: 1.25rem;
    background: rgba(245, 166, 35, 0.12);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    border: 1px solid rgba(245, 166, 35, 0.3);
}

/* SUGUMENロゴ */
.sg-hero__logo-wrap {
    margin-bottom: 0.75rem;
}
.sg-hero__logo-img {
    width: 300px;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 14px;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(0, 170, 255, 0.2);
}

.sg-hero__subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.sg-hero__catchcopy {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sg-accent);
    margin-bottom: 1.25rem;
    line-height: 1.6;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.sg-hero__description {
    font-size: 1rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 2rem;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
}

.sg-hero__ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.sg-hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
}
.sg-hero__cta--primary {
    background: linear-gradient(135deg, var(--sg-accent), var(--sg-accent-dark));
    color: var(--sg-white);
    box-shadow: 0 4px 20px rgba(245, 166, 35, 0.4);
}
.sg-hero__cta--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(245, 166, 35, 0.55);
}
.sg-hero__cta--secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--sg-white);
    border: 2px solid rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(4px);
}
.sg-hero__cta--secondary:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.9);
}

/* スタットカード列（右カラム） */
.sg-hero__stats-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sg-hero__stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    padding: 1rem 1.25rem;
    color: var(--sg-white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: background 0.3s, transform 0.3s;
}
.sg-hero__stat:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(4px);
}
.sg-hero__stat-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--sg-primary), var(--sg-primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    color: var(--sg-white);
    box-shadow: 0 2px 10px rgba(0, 102, 204, 0.4);
}
.sg-hero__stat-text strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
}
.sg-hero__stat-text span {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.72);
}

/* スクロール誘導 */
.sg-hero__scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: opacity 0.4s;
    animation: sg-bounce 2s infinite;
}
.sg-hero__scroll-hint i { font-size: 0.9rem; }

@keyframes sg-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(6px); }
}

/* ===========================================
   Problem Section
   =========================================== */
.sg-problem {
    padding: 5rem 2rem;
    background: var(--sg-white);
}

.sg-problem__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75rem;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-problem__item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--sg-bg-light);
    border: 1px solid var(--sg-border);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.sg-problem__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 102, 204, 0.12);
}
.sg-problem__item i {
    font-size: 2.5rem;
    color: var(--sg-primary);
    margin-bottom: 1.25rem;
    display: block;
}
.sg-problem__item p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--sg-text);
}
.sg-problem__item strong {
    color: var(--sg-primary-dark);
}

/* ===========================================
   Solution Section — リアル応募者写真
   =========================================== */
.sg-solution {
    padding: 5rem 2rem;
    background: var(--sg-bg-light);
}

.sg-solution__content {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1100px;
    margin: 0 auto;
}

/* 写真ラッパー */
.sg-solution__photo-wrap {
    flex: 0 0 480px;
    position: relative;
}

.sg-solution__photo {
    width: 100%;
    height: auto;
    border-radius: 20px;
    display: block;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.04),
        0 20px 50px rgba(0, 102, 204, 0.18);
    object-fit: cover;
    aspect-ratio: 4/3;
}

/* 写真上の浮遊バッジ */
.sg-solution__badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--sg-white);
    border-radius: 50px;
    padding: 0.55rem 1.1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sg-text);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
    white-space: nowrap;
}
.sg-solution__badge i {
    color: var(--sg-primary);
}
.sg-solution__badge strong {
    color: var(--sg-accent-dark);
}
.sg-solution__badge--top {
    top: -14px;
    left: 20px;
}
.sg-solution__badge--bottom {
    bottom: -14px;
    right: 20px;
}

.sg-solution__text {
    flex: 1;
}
.sg-solution__lead {
    font-size: 1.125rem;
    line-height: 1.9;
    margin-bottom: 2rem;
    color: var(--sg-text);
}
.sg-solution__lead strong {
    color: var(--sg-primary);
}

.sg-solution__list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sg-solution__list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    font-size: 1rem;
    color: var(--sg-text);
    border-bottom: 1px solid var(--sg-border);
}
.sg-solution__list li:last-child { border-bottom: none; }
.sg-solution__list i {
    color: var(--sg-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* ===========================================
   Features Section
   =========================================== */
.sg-features {
    padding: 5rem 2rem;
    background: var(--sg-white);
}

.sg-features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-features__item {
    padding: 2.5rem 2rem;
    background: var(--sg-white);
    border: 1px solid var(--sg-border);
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.sg-features__item:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 102, 204, 0.14);
    border-color: var(--sg-primary-light);
}

.sg-features__icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    overflow: hidden;
}

/* 画像アイコン用 */
.sg-features__icon--img {
    background: transparent;
    padding: 0;
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.15);
}
.sg-features__icon--img img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.sg-features__item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sg-text);
    margin-bottom: 1rem;
}
.sg-features__item p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--sg-text-light);
}

/* ===========================================
   Use Cases Section — HRチームリアル写真バナー
   =========================================== */
.sg-usecases {
    padding: 5rem 2rem;
    background: var(--sg-bg-light);
}

/* ワイドフォトバナー */
.sg-usecases__banner {
    position: relative;
    max-width: 1100px;
    margin: 0 auto 3.5rem;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
}
.sg-usecases__banner-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: center 30%;
    display: block;
}
.sg-usecases__banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 26, 60, 0.75) 0%,
        rgba(0, 26, 60, 0.3) 50%,
        transparent 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 2rem 2.5rem;
}
.sg-usecases__banner-caption {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--sg-white);
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}
.sg-usecases__banner-caption i {
    font-size: 1.25rem;
    color: var(--sg-accent);
    flex-shrink: 0;
}

/* ユースケースカードグリッド */
.sg-usecases__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-usecases__item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 2rem;
    background: var(--sg-white);
    border-radius: 16px;
    border: 1px solid var(--sg-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s, box-shadow 0.3s;
}
.sg-usecases__item:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 102, 204, 0.12);
}

.sg-usecases__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--sg-primary), var(--sg-primary-light));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--sg-white);
}

.sg-usecases__body h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--sg-text);
    margin-bottom: 0.625rem;
}
.sg-usecases__body p {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--sg-text-light);
}

/* ===========================================
   Flow Section
   =========================================== */
.sg-flow {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--sg-hero-dark1) 0%, var(--sg-hero-dark2) 100%);
    color: var(--sg-white);
}

.sg-flow .sg-section-title { color: var(--sg-white); }
.sg-flow .sg-section-title::after {
    background: linear-gradient(90deg, var(--sg-primary-light), var(--sg-accent));
}

.sg-flow__steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-flow__step-inner {
    text-align: center;
    padding: 2rem 1.25rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    transition: background 0.3s, border-color 0.3s;
}
.sg-flow__step-inner:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--sg-accent);
}

.sg-flow__arrow {
    text-align: center;
    padding: 0 0.75rem;
    color: var(--sg-accent);
    font-size: 1.25rem;
    opacity: 0.7;
}

.sg-flow__number {
    display: inline-block;
    font-size: 1.75rem;
    font-weight: 800;
    font-family: 'Montserrat', sans-serif;
    color: var(--sg-accent);
    margin-bottom: 0.75rem;
}
.sg-flow__step-icon {
    font-size: 1.75rem;
    color: var(--sg-primary-light);
    margin-bottom: 1rem;
}
.sg-flow__step-inner h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--sg-white);
}
.sg-flow__step-inner p {
    font-size: 0.8125rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.72);
}

/* ===========================================
   Mobile Section — スマホ応募者リアル写真
   =========================================== */
.sg-mobile {
    padding: 5rem 2rem;
    background: var(--sg-white);
}

.sg-mobile__content {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-mobile__text {
    flex: 1;
}

.sg-mobile__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--sg-primary), var(--sg-primary-light));
    color: var(--sg-white);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.25rem;
    letter-spacing: 0.04em;
}

.sg-mobile__title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--sg-text);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.sg-mobile__desc {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--sg-text-light);
    margin-bottom: 1.75rem;
}

.sg-mobile__list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sg-mobile__list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.7rem 0;
    font-size: 0.9375rem;
    color: var(--sg-text);
    border-bottom: 1px solid var(--sg-border);
}
.sg-mobile__list li:last-child { border-bottom: none; }
.sg-mobile__list i {
    color: var(--sg-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* 写真ラッパー */
.sg-mobile__photo-wrap {
    flex: 0 0 460px;
    position: relative;
}

.sg-mobile__photo {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
    object-fit: cover;
    aspect-ratio: 4/3;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.04),
        0 20px 50px rgba(0, 102, 204, 0.15);
}

/* 写真上の安全バッジ */
.sg-mobile__photo-badge {
    position: absolute;
    bottom: -14px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--sg-white);
    border-radius: 50px;
    padding: 0.55rem 1.1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sg-text);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
    white-space: nowrap;
}
.sg-mobile__photo-badge i {
    color: var(--sg-primary);
}

/* ===========================================
   Cloud Section
   =========================================== */
.sg-cloud {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #EAF4FF 0%, #F5FAFF 100%);
    border-top: 1px solid var(--sg-border);
    border-bottom: 1px solid var(--sg-border);
}

.sg-cloud__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.sg-cloud__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--sg-primary), var(--sg-primary-light));
    color: var(--sg-white);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.25rem;
    letter-spacing: 0.05em;
}

.sg-cloud__title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--sg-text);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.sg-cloud__desc {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--sg-text-light);
    margin-bottom: 2rem;
}

.sg-cloud__list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sg-cloud__list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    font-size: 0.9375rem;
    color: var(--sg-text);
    border-bottom: 1px solid var(--sg-border);
}
.sg-cloud__list li:last-child { border-bottom: none; }
.sg-cloud__list i { color: var(--sg-primary); flex-shrink: 0; margin-top: 0.2rem; }
.sg-cloud__list strong { color: var(--sg-primary-dark); }

/* クラウド構成図 */
.sg-cloud__diagram {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 360px;
    margin: 0 auto;
}

.sg-cloud__diagram-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 110px; height: 110px;
    background: linear-gradient(135deg, var(--sg-primary), var(--sg-primary-light));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--sg-white);
    font-size: 1.625rem;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 102, 204, 0.4);
    z-index: 2;
}
.sg-cloud__diagram-center span {
    font-size: 0.6rem;
    font-weight: 700;
    line-height: 1.4;
    margin-top: 0.25rem;
}

.sg-cloud__diagram-node {
    position: absolute;
    width: 76px; height: 76px;
    background: var(--sg-white);
    border: 2px solid var(--sg-border);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--sg-text);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    z-index: 2;
}
.sg-cloud__diagram-node i { font-size: 1.375rem; color: var(--sg-primary); }
.sg-cloud__diagram-node--1 { top: 5%;     left: 50%; transform: translate(-50%, 0); }
.sg-cloud__diagram-node--2 { top: 50%;    right: 0;  transform: translate(0, -50%); }
.sg-cloud__diagram-node--3 { bottom: 5%;  left: 50%; transform: translate(-50%, 0); }
.sg-cloud__diagram-node--4 { top: 50%;    left: 0;   transform: translate(0, -50%); }

/* ===========================================
   CTA Section
   =========================================== */
.sg-cta {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--sg-primary) 0%, var(--sg-primary-dark) 100%);
    text-align: center;
    color: var(--sg-white);
    overflow: hidden;
    position: relative;
}
.sg-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 36px 36px;
}

.sg-cta__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    position: relative;
}
.sg-cta__text {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    position: relative;
}
.sg-cta__buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    position: relative;
}
.sg-cta__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.sg-cta__btn--primary {
    background: var(--sg-white);
    color: var(--sg-primary);
}
.sg-cta__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}
.sg-cta__btn--secondary {
    background: transparent;
    color: var(--sg-white);
    border: 2px solid var(--sg-white);
}
.sg-cta__btn--secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ===========================================
   Responsive Breakpoints
   =========================================== */
@media (max-width: 1200px) {
    .sg-flow__steps {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    .sg-flow__arrow { display: none; }
    .sg-hero__inner { grid-template-columns: 1fr 320px; }
}

@media (max-width: 1024px) {
    .sg-hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .sg-hero__ctas { justify-content: center; }
    .sg-hero__logo-wrap { margin: 0 auto 0.75rem; }
    .sg-hero__logo-img { margin: 0 auto; }
    .sg-hero__stats-col {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    .sg-hero__stat { flex: 0 0 calc(50% - 0.5rem); }

    .sg-problem__grid { grid-template-columns: repeat(2, 1fr); }

    .sg-solution__content {
        flex-direction: column;
        gap: 3rem;
    }
    .sg-solution__photo-wrap {
        flex: 0 0 auto;
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
    }

    .sg-mobile__content {
        flex-direction: column;
        gap: 3rem;
    }
    .sg-mobile__photo-wrap {
        flex: 0 0 auto;
        width: 100%;
        max-width: 500px;
        order: -1;
        margin: 0 auto;
    }

    .sg-cloud__content { grid-template-columns: 1fr; }
    .sg-cloud__diagram { max-width: 280px; }
}

@media (max-width: 768px) {
    .sg-hero { padding: 4rem 1.5rem 3rem; min-height: 560px; }
    .sg-hero__logo-img { width: 220px; }
    .sg-hero__catchcopy { font-size: 1.25rem; }
    .sg-hero__description { font-size: 0.9375rem; }
    .sg-hero__stat { flex: 0 0 100%; }

    .sg-section-title { font-size: 1.5rem; }

    .sg-problem__grid { grid-template-columns: 1fr; max-width: 400px; }
    .sg-features__grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .sg-usecases__grid { grid-template-columns: 1fr; }
    .sg-flow__steps { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }

    .sg-usecases__banner-img { height: 260px; }
    .sg-usecases__banner-caption { font-size: 0.875rem; }

    .sg-usecases__item { flex-direction: column; text-align: center; }
    .sg-usecases__icon { margin: 0 auto; }

    .sg-mobile__title { font-size: 1.5rem; }

    .sg-cta { padding: 3rem 1rem; }
    .sg-cta__title { font-size: 1.5rem; }
    .sg-cta__text { font-size: 1rem; }
    .sg-cta__buttons { flex-direction: column; align-items: center; }
    .sg-cta__btn { width: calc(100% - 2rem); max-width: 280px; justify-content: center; }
}

@media (max-width: 480px) {
    .sg-hero__logo-img { width: 180px; }
    .sg-hero__catchcopy { font-size: 1.125rem; }
    .sg-hero__cta { padding: 0.8rem 1.5rem; font-size: 0.9375rem; }
    .sg-hero__stat { flex: 0 0 100%; }
    .sg-usecases__banner-img { height: 200px; }
}

/* ============================================================
   FAQ セクション
   ============================================================ */
.sg-faq {
    padding: 5rem 0;
    background: #f8f9fa;
}

.sg-faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.sg-faq__item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.sg-faq__item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.sg-faq__item[open] .sg-faq__arrow {
    transform: rotate(180deg);
}

.sg-faq__question {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: #1a237e;
    list-style: none;
    user-select: none;
}

.sg-faq__question::-webkit-details-marker {
    display: none;
}

.sg-faq__question .fa-question-circle {
    color: #3f51b5;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sg-faq__question span {
    flex: 1;
}

.sg-faq__arrow {
    transition: transform 0.3s ease;
    color: #9e9e9e;
    flex-shrink: 0;
}

.sg-faq__answer {
    padding: 0 1.5rem 1.25rem 3rem;
    color: #555;
    line-height: 1.8;
}

.sg-faq__answer p {
    margin: 0;
}

@media (max-width: 768px) {
    .sg-faq__question {
        padding: 1rem 1.25rem;
        font-size: 0.9375rem;
    }
    .sg-faq__answer {
        padding: 0 1.25rem 1rem 1.25rem;
    }
}

/* ============================================================
   パンくずリスト
   ============================================================ */
.sg-breadcrumb {
    background: #f5f5f5;
    padding: 0.75rem 0;
    font-size: 0.8125rem;
}

.sg-breadcrumb__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.sg-breadcrumb__list li + li::before {
    content: "›";
    margin-right: 0.5rem;
    color: #999;
}

.sg-breadcrumb__list a {
    color: #3f51b5;
    text-decoration: none;
}

.sg-breadcrumb__list a:hover {
    text-decoration: underline;
}

.sg-breadcrumb__list li:last-child {
    color: #666;
}

/* パンくずを fixed header の高さ分下げる（SP:50px / PC:70px） */
.sg-breadcrumb { margin-top: 50px; }
@media screen and (min-width: 800px) {
  .sg-breadcrumb { margin-top: 70px; }
}