/* ==========================================================================
   燃やしま専科 レモン風味 7本LP — Plain CSS
   ecforce対応・プレーンCSS版
   ==========================================================================

   TABLE OF CONTENTS
   --------------------------------------------------------------------------
   1.  CSS Custom Properties
   2.  CSS Reset
   3.  Base / Typography
   4.  Layout — Container
   5.  Hero Section
   6.  Features Section
   7.  Lemon Section (clip-slant)
   8.  Gallery Section
   9.  Trial Section
   10. How-to Section
   11. Target Section
   12. Offer Section (CTA)
   13. Footer
   14. Mobile Sticky CTA
   15. Utility / Helper Classes
   16. Animations
   17. Scroll Fade-in
   18. Responsive — sm  (>=640px)
   19. Responsive — md  (>=768px)
   20. Responsive — lg  (>=1024px)
   21. Responsive — xl  (>=1280px)
   ========================================================================== */


/* ==========================================================================
   1. CSS Custom Properties
   ========================================================================== */
:root {
    /* ブランドカラー */
    --color-primary: #f8b62d;
    --color-primary-dark: #dca024;
    --color-primary-glow: rgba(248, 182, 45, 0.35);
    --color-cta-green: #80b745;
    --color-cta-green-hover: #6ea138;
    --color-cta-green-glow: rgba(128, 183, 69, 0.4);
    --color-navy: #0f172a;

    /* 背景 */
    --color-bg: #ffffff;
    --color-bg-neutral: #f9fafb;
    --color-bg-warm: #fffbf0;

    /* テキスト */
    --color-text: #1f2937;
    --color-text-light: #4b5563;
    --color-text-muted: #6b7280;
    --color-text-faint: #9ca3af;

    /* ボーダー */
    --color-border: #f3f4f6;
    --color-border-light: #e5e7eb;

    /* その他 */
    --color-red: #D32F2F;
    --color-red-line: #ef4444;

    /* フォント */
    --font-display: "Lexend", sans-serif;
    --font-body: "Noto Sans JP", sans-serif;

    /* シャドウ */
    --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 20px rgba(248, 182, 45, 0.4);
    --shadow-cta: 0 8px 32px rgba(128, 183, 69, 0.35);

    /* トランジション */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}


/* ==========================================================================
   2. CSS Reset
   ========================================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    line-height: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
}

a {
    color: inherit;
    text-decoration: inherit;
}

img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    vertical-align: middle;
}

img, video {
    max-width: 100%;
    height: auto;
}

button, input, optgroup, select, textarea {
    font-family: inherit;
    font-size: 100%;
    font-weight: inherit;
    line-height: inherit;
    color: inherit;
    margin: 0;
    padding: 0;
}

ol, ul, menu {
    list-style: none;
}

blockquote, dl, dd, figure, fieldset, legend, p, pre {
    margin: 0;
}


/* ==========================================================================
   3. Base / Typography
   ========================================================================== */
body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.font-display {
    font-family: var(--font-display);
}


/* ==========================================================================
   4. Layout — Container
   ========================================================================== */
.container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
    position: relative;
    width: 100%;
}


/* ==========================================================================
   5. Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding-top: 48px;
    padding-bottom: 80px;
    overflow: hidden;
    background-color: var(--color-bg);
}

/* 背景装飾 */
.hero__bg-gradient {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(248, 182, 45, 0.08), rgba(128, 183, 69, 0.04), transparent);
    z-index: 0;
    border-bottom-left-radius: 100px;
}

.hero__bg-blob {
    position: absolute;
    top: 80px;
    left: 40px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(248, 182, 45, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

/* テキストエリア */
.hero__text {
    position: relative;
    z-index: 10;
}

.hero__text > * + * {
    margin-top: 24px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-navy);
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.25);
    letter-spacing: 0.02em;
}

.hero__badge-icon {
    color: var(--color-primary);
    font-size: 1.125rem;
}

.hero__title {
    font-size: 2.25rem;
    font-weight: 900;
    line-height: 1.2;
    color: var(--color-navy);
    letter-spacing: -0.02em;
}

.hero__title-highlight {
    position: relative;
    display: inline-block;
    margin-top: 8px;
}

.hero__title-accent {
    color: var(--color-primary-dark);
}

.hero__title-logo {
    height: 2.8em;
    width: auto;
    vertical-align: middle;
    display: inline-block;
}

.hero__title-underline {
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, rgba(248, 182, 45, 0.3), rgba(248, 182, 45, 0.1));
    z-index: -1;
    transform: rotate(-1deg);
    border-radius: 4px;
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    font-weight: 500;
    line-height: 1.75;
    max-width: 512px;
}

.hero__actions {
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}

/* CTAボタン — シマーエフェクト付き */
.hero__cta {
    position: relative;
    display: block;
    background: linear-gradient(135deg, var(--color-cta-green), #72a83e);
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    padding: 18px 32px 18px 24px;
    border-radius: 14px;
    box-shadow: var(--shadow-cta);
    transition: all 0.4s var(--ease-out-expo);
    text-align: center;
    width: 100%;
    overflow: hidden;
}

.hero__cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px var(--color-cta-green-glow);
}

.hero__cta:active {
    transform: translateY(-1px);
}

.hero__cta-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.hero__cta-inner {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.hero__cta-inner .material-icons {
    transition: transform 0.3s var(--ease-out-expo);
}

.hero__cta-hover-fill {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform: scale(0);
    border-radius: 14px;
    transition: transform 0.4s var(--ease-out-expo);
    background-color: rgba(255, 255, 255, 0.08);
}

.hero__cta:hover .hero__cta-hover-fill {
    transform: scale(1);
}

.hero__cta:hover .hero__cta-inner .material-icons {
    transform: translateX(4px);
}

/* CTAシマーアニメーション（強め） */
.hero__cta::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -60%;
    width: 50%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: rotate(25deg);
    animation: shimmer 2.5s ease-in-out infinite;
}

/* CTA内価格表示 */
.hero__cta-text {
    font-size: 1.125rem;
    font-weight: 700;
    white-space: nowrap;
    margin-right: auto;
}

.hero__cta-price-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    border-left: 1px solid rgba(255, 255, 255, 0.4);
    padding-left: 12px;
    line-height: 1.2;
}

.hero__cta-price {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 700;
}

.hero__cta-tax {
    font-size: 0.625rem;
    opacity: 0.85;
}

/* ビジュアルエリア */
.hero__visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.hero__visual-inner {
    position: relative;
    width: 100%;
    max-width: 448px;
    aspect-ratio: 4 / 5;
    margin: 0 auto;
    transition: transform 0.6s var(--ease-out-expo);
}

.hero__visual-inner:hover {
    transform: scale(1.03);
}

.hero__package {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__package img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.12)) brightness(1.03);
}

.hero__blob-primary {
    position: absolute;
    top: -40px;
    right: -40px;
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(248, 182, 45, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    animation: float 4s ease-in-out infinite;
}

.hero__blob-green {
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(128, 183, 69, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    animation: float 5s ease-in-out infinite reverse;
}

.hero__lemon-slice {
    position: absolute;
    bottom: -16px;
    right: -32px;
    width: 120px;
    height: 120px;
    z-index: 30;
    transform: rotate(12deg);
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.12));
    transition: transform 0.4s var(--ease-out-expo);
}

.hero__visual-inner:hover .hero__lemon-slice {
    transform: rotate(0deg) scale(1.1);
}

.hero__lemon-slice img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
    border: 3px solid #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.hero__bubble {
    position: absolute;
    top: 25%;
    left: -48px;
    width: 96px;
    height: 96px;
    z-index: 30;
    opacity: 0.6;
}

.hero__bubble-inner {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(239, 246, 255, 0.3));
    border-radius: 50%;
    filter: blur(8px);
}


/* ==========================================================================
   5.5 Trust Banner (累計販売実績)
   ========================================================================== */
.trust-banner {
    padding: 32px 0 0;
    background: linear-gradient(180deg, #fffbe6 0%, #fff 100%);
    text-align: center;
}

.trust-banner__img {
    max-width: 600px;
    width: 100%;
    height: auto;
    margin: 0 auto;
    display: block;
}

/* ==========================================================================
   6. Features Section
   ========================================================================== */
.features {
    padding: 80px 0;
    background-color: var(--color-bg);
    position: relative;
}

.features__header {
    text-align: center;
    margin-bottom: 64px;
    max-width: 768px;
    margin-left: auto;
    margin-right: auto;
}

.features__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.75;
}

.features__title-accent {
    margin-top: 16px;
    display: block;
    font-size: 1.875rem;
    font-weight: 900;
}

.features__title-lemon {
    color: #f3d925;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.18), 0 0 1px rgba(0, 0, 0, 0.1);
}

.features__title-sub {
    color: #0f172a;
}

.features__title-logo {
    height: 3.2em;
    width: auto;
    vertical-align: middle;
    display: inline-block;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.feature-card {
    background-color: var(--color-bg);
    padding: 28px 20px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s var(--ease-out-expo);
    border: 1px solid var(--color-border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.feature-card:hover {
    box-shadow: var(--shadow-card);
    border-color: rgba(248, 182, 45, 0.4);
    transform: translateY(-4px);
}

.feature-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, rgba(248, 182, 45, 0.12), rgba(248, 182, 45, 0.04));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
    transition: transform 0.3s var(--ease-out-expo);
}

.feature-card:hover .feature-card__icon {
    transform: scale(1.1);
}

.feature-card__icon .material-icons {
    font-size: 1.625rem;
}

.feature-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.01em;
}

.features__summary {
    text-align: center;
    max-width: 768px;
    margin: 0 auto;
    border-top: 1px solid var(--color-border);
    padding-top: 40px;
}

.features__summary-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-light);
    line-height: 1.9;
}

.features__summary-highlight {
    color: var(--color-cta-green);
    font-weight: 700;
    margin-top: 8px;
    display: block;
    font-size: 1.375rem;
}


/* ==========================================================================
   7. Lemon Section (clip-slant)
   ========================================================================== */
.lemon {
    padding: 96px 0;
    background-color: var(--color-primary);
    color: var(--color-navy);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    position: relative;
    overflow: hidden;
}

.lemon__bg {
    position: absolute;
    inset: 0;
    opacity: 0.08;
    pointer-events: none;
    mix-blend-mode: multiply;
    background-size: cover;
    background-position: center;
}

.lemon__grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    position: relative;
    z-index: 10;
}

.lemon__image-wrap {
    width: 100%;
}

.lemon__image {
    width: 100%;
    height: 320px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transform: rotate(2deg);
    transition: transform 0.5s var(--ease-out-expo);
}

.lemon__image:hover {
    transform: rotate(0deg);
}

.lemon__content {
    text-align: center;
}

.lemon__title {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 28px;
    color: var(--color-navy);
    letter-spacing: -0.02em;
}

.lemon__list {
    margin-bottom: 32px;
}

.lemon__list > * + * {
    margin-top: 14px;
}

.lemon__list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.0625rem;
    font-weight: 600;
}

.lemon__check-icon {
    background-color: var(--color-cta-green);
    color: #ffffff;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.875rem;
    box-shadow: 0 2px 4px rgba(128, 183, 69, 0.3);
}

.lemon__quote {
    font-weight: 700;
    font-size: 1.125rem;
    margin-top: 16px;
    background: rgba(255, 255, 255, 0.45);
    display: inline-block;
    padding: 18px 24px;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}


/* ==========================================================================
   8. Gallery Section
   ========================================================================== */
.gallery {
    padding: 80px 0;
    padding-top: 128px;
    background-color: var(--color-bg);
}

.gallery__header {
    text-align: center;
    margin-bottom: 56px;
}

.gallery__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
}

.gallery__title-logo {
    height: 3.0em;
    width: auto;
    vertical-align: middle;
    display: inline-block;
    margin-top: -0.3em;
}

.gallery__subtitle {
    color: #374151;
    margin-top: 20px;
    line-height: 1.85;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.0625rem;
}

.gallery__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.gallery-item--large {
    height: 256px;
}

.gallery-item--small {
    height: 192px;
}

.gallery-item--anniversary {
    height: 192px;
    background: linear-gradient(135deg, var(--color-navy) 0%, #1a2744 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--ease-out-expo);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.1) 60%, transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
}

.gallery-item__overlay--dim {
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.2);
    transition: background-color 0.4s;
}

.gallery-item:hover .gallery-item__overlay--dim {
    background-color: rgba(15, 23, 42, 0.05);
}

.gallery-item__overlay--bottom {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.75), transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
}

.gallery-item__label {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.gallery-item__caption {
    color: #ffffff;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* アニバーサリー */
.anniversary__number {
    display: block;
    color: var(--color-primary);
    font-size: 3.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1;
}

.anniversary__suffix {
    font-size: 1.25rem;
}

.anniversary__text {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}


/* ==========================================================================
   9. Trial Section
   ========================================================================== */
.trial {
    padding: 96px 0;
    background-color: var(--color-bg-warm);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.trial__inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

.trial__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(248, 182, 45, 0.15), rgba(248, 182, 45, 0.05));
    margin-bottom: 28px;
}

.trial__icon .material-icons {
    font-size: 2rem;
    color: var(--color-primary-dark);
}

.trial__title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-navy);
    margin-bottom: 28px;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.trial__body {
    font-size: 1.125rem;
    line-height: 2;
    color: #374151;
}

.trial__body > * + * {
    margin-top: 20px;
}


/* ==========================================================================
   10. How-to Section
   ========================================================================== */
.howto {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.howto__header {
    text-align: center;
    margin-bottom: 48px;
}

.howto__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.howto__title .material-icons {
    color: var(--color-primary);
}

.howto__steps {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
}

.howto__arrow {
    display: none;
    color: #d1d5db;
}

.howto__arrow .material-icons {
    font-size: 2.25rem;
}

.step-card {
    flex: 1;
    max-width: 384px;
    width: 100%;
    background-color: var(--color-bg);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    position: relative;
    transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
}

.step-card__number {
    position: absolute;
    top: -18px;
    left: -18px;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-navy), #1a2744);
    color: #ffffff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 700;
    font-family: var(--font-display);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.25);
    border: 3px solid #ffffff;
}

.step-card__visual {
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--color-bg-neutral), var(--color-bg));
    border-radius: 14px;
    border: 1px solid var(--color-border);
}

.step-card__visual .material-icons {
    font-size: 3.75rem;
    color: var(--color-text-faint);
}

.step-card__visual .material-icons--primary {
    color: var(--color-primary);
}

.step-card__title {
    font-size: 1.0625rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-text);
}

.howto__note {
    text-align: center;
    margin-top: 48px;
    max-width: 672px;
    margin-left: auto;
    margin-right: auto;
}

.howto__note-text {
    font-size: 1.125rem;
    color: #374151;
    font-weight: 500;
    line-height: 1.8;
}


/* ==========================================================================
   11. Target Section
   ========================================================================== */
.target {
    padding: 64px 0;
    background-color: var(--color-bg);
}

.target__inner {
    max-width: 896px;
    margin: 0 auto;
}

.target__card {
    background: linear-gradient(135deg, rgba(248, 182, 45, 0.05), rgba(248, 182, 45, 0.02));
    border-radius: 24px;
    padding: 32px;
    border: 1px solid rgba(248, 182, 45, 0.15);
}

.target__title {
    font-size: 1.375rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-navy);
    margin-bottom: 28px;
}

.target__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.target__item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.target__check {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-cta-green), #72a83e);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
    box-shadow: 0 2px 4px rgba(128, 183, 69, 0.25);
}

.target__check .material-icons {
    font-size: 0.875rem;
}

.target__text {
    font-size: 1.0625rem;
    color: #374151;
    line-height: 1.6;
}


/* ==========================================================================
   12. Offer Section (CTA)
   ========================================================================== */
.offer {
    padding: 96px 0;
    background: linear-gradient(135deg, var(--color-primary), #e5a428);
    clip-path: polygon(0 15%, 100% 0, 100% 100%, 0 100%);
    position: relative;
}

/* 背景テクスチャ */
.offer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1), transparent 50%),
                radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.08), transparent 40%);
    pointer-events: none;
}

.offer__card {
    max-width: 896px;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    transform: rotate(-1deg);
    transition: transform 0.4s var(--ease-out-expo);
    border: none;
    position: relative;
    z-index: 10;
}

.offer__card:hover {
    transform: rotate(0deg);
}

.offer__banner {
    background: linear-gradient(135deg, var(--color-navy), #1a2744);
    color: #ffffff;
    text-align: center;
    padding: 14px;
    font-weight: 700;
    font-size: 0.9375rem;
    letter-spacing: 0.08em;
}

.offer__body {
    padding: 36px 28px;
    text-align: center;
}

.offer__product-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.offer__product-logo {
    height: 3.0em;
    width: auto;
    vertical-align: middle;
    display: inline-block;
    margin-top: -0.2em;
}

.offer__product-detail {
    font-size: 0.9375rem;
    font-weight: 400;
    color: #374151;
}

/* 価格エリア */
.offer__pricing {
    margin: 28px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.offer__original-price {
    color: var(--color-text-faint);
    font-weight: 700;
    font-size: 1.125rem;
    position: relative;
    display: inline-block;
    margin-bottom: 12px;
}

.offer__original-price-line {
    position: absolute;
    top: 50%;
    left: -4px;
    width: calc(100% + 8px);
    height: 2px;
    background-color: var(--color-red-line);
    transform: rotate(-6deg);
}

.offer__special-price {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.offer__limited-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-red), #e53935);
    padding: 4px 14px;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.offer__price-row {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.offer__price-number {
    font-size: 3.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.05em;
    color: var(--color-navy);
    line-height: 1;
}

.offer__price-unit {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
}

.offer__price-tax {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-left: 8px;
}

/* CTAボタン — シマーエフェクト付き */
/* CTA購入ボタンリンク: 商品コード確定後にhref属性を差し替えてください */
.offer__cta {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, var(--color-cta-green), #72a83e);
    color: #ffffff;
    font-size: 1.375rem;
    font-weight: 700;
    padding: 20px 32px;
    border-radius: 14px;
    box-shadow: var(--shadow-cta);
    transition: all 0.4s var(--ease-out-expo);
    text-align: center;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.offer__cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px var(--color-cta-green-glow);
}

.offer__cta:active {
    transform: translateY(-1px);
}

/* シマーエフェクト（強め） */
.offer__cta::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -60%;
    width: 50%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: rotate(25deg);
    animation: shimmer 2.5s ease-in-out infinite;
}

.offer__note {
    font-size: 0.75rem;
    color: #374151;
    line-height: 1.6;
}


/* ==========================================================================
   13. Footer
   ========================================================================== */
.footer {
    background: linear-gradient(180deg, var(--color-navy), #080e1a);
    color: #d1d5db;
    padding: 64px 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.footer__brand-icon {
    color: var(--color-primary);
    font-size: 1.875rem;
}

.footer__brand-name {
    font-weight: 700;
    font-size: 1.375rem;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.footer__brand-logo {
    height: 64px;
    width: auto;
}

.footer__message {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.8;
}

/* CTA購入ボタンリンク: 商品コード確定後にhref属性を差し替えてください */
.footer__cta {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-cta-green), #72a83e);
    color: #ffffff;
    padding: 14px 36px;
    border-radius: 9999px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(128, 183, 69, 0.3);
    transition: all 0.3s var(--ease-out-expo);
    margin-top: 20px;
    font-size: 0.9375rem;
}

.footer__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(128, 183, 69, 0.4);
}

.footer__contact {
    text-align: left;
}

.footer__contact-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 8px;
}

.footer__phone {
    font-size: 1.375rem;
    font-family: var(--font-display);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
}

.footer__links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.footer__link {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.8125rem;
    transition: color 0.3s;
}

.footer__link:hover {
    color: var(--color-primary);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 32px;
    text-align: center;
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.02em;
}


/* ==========================================================================
   14. Mobile Sticky CTA
   ========================================================================== */
.sticky-cta {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 12px 16px;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    border-top: 1px solid var(--color-border);
    transform: translateY(100%);
    transition: transform 0.4s var(--ease-out-expo);
}

.sticky-cta--visible {
    transform: translateY(0);
}

.sticky-cta__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    max-width: 480px;
    margin: 0 auto;
}

.sticky-cta__price {
    flex-shrink: 0;
    text-align: center;
}

.sticky-cta__price-amount {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-navy);
    line-height: 1;
}

.sticky-cta__price-tax {
    font-size: 0.625rem;
    color: var(--color-text-muted);
}

/* CTA購入ボタンリンク: 商品コード確定後にhref属性を差し替えてください */
.sticky-cta__button {
    flex: 0 1 auto;
    display: block;
    background: linear-gradient(135deg, var(--color-cta-green), #72a83e);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.9375rem;
    padding: 12px 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(128, 183, 69, 0.3);
    transition: all 0.3s;
}

.sticky-cta__button:active {
    transform: scale(0.98);
}


/* ==========================================================================
   15. Utility / Helper Classes
   ========================================================================== */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hidden-mobile {
    display: none;
}

/* SP only改行: 640px以上で非表示 */
.sp-only {
    display: inline;
}

@media (min-width: 640px) {
    .sp-only {
        display: none;
    }
}

.material-icons {
    font-family: 'Material Icons';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
    transition: transform 0.3s var(--ease-out-expo);
}


/* ==========================================================================
   16. Animations
   ========================================================================== */
@keyframes shimmer {
    0% {
        left: -60%;
    }
    50%, 100% {
        left: 120%;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}


/* スマホのみ */
@media (max-width: 639px) {
    .hero__cta-text {
        padding-left: 8%;
    }

    .features__title {
        font-size: 1.25rem;
    }

    .features__title-accent {
        font-size: 1.5rem;
    }

    .features__summary-text {
        font-size: 1rem;
    }

    .features__summary-highlight {
        font-size: 1.25rem;
    }

    .lemon__title {
        font-size: 1.75rem;
    }

    .lemon__list-item {
        font-size: 0.8125rem;
    }

    .offer__product-logo {
        height: 2.5em;
    }
}

/* ==========================================================================
   17. Scroll Fade-in
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

.fade-in--visible {
    opacity: 1;
    transform: translateY(0);
}

/* スタガーアニメーション（子要素の遅延） */
.fade-in--delay-1 { transition-delay: 0.1s; }
.fade-in--delay-2 { transition-delay: 0.2s; }
.fade-in--delay-3 { transition-delay: 0.3s; }
.fade-in--delay-4 { transition-delay: 0.4s; }


/* ==========================================================================
   18. Responsive — sm (min-width: 640px)
   ========================================================================== */
@media (min-width: 640px) {
    .container {
        padding-left: 24px;
        padding-right: 24px;
    }

    .hero__actions {
        flex-direction: row;
        align-items: center;
    }

    .hero__cta {
        width: auto;
    }

    .hidden-mobile {
        display: inline;
    }
}


/* ==========================================================================
   19. Responsive — md (min-width: 768px)
   ========================================================================== */
@media (min-width: 768px) {
    /* Features */
    .features__title {
        font-size: 1.875rem;
    }

    .features__title-accent {
        font-size: 2.25rem;
    }

    .features__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .features__summary-text {
        font-size: 1.25rem;
    }

    .features__summary-highlight {
        font-size: 1.5rem;
    }

    .feature-card {
        padding: 32px 24px;
    }

    .feature-card__icon {
        width: 64px;
        height: 64px;
        border-radius: 18px;
    }

    .feature-card__icon .material-icons {
        font-size: 1.875rem;
    }

    .feature-card__title {
        font-size: 1.125rem;
    }

    /* Lemon */
    .lemon__grid {
        flex-direction: row;
    }

    .lemon__image-wrap {
        width: 50%;
    }

    .lemon__content {
        width: 50%;
        text-align: left;
    }

    .lemon__title {
        font-size: 2.25rem;
    }

    .lemon__quote {
        font-size: 1.375rem;
    }

    /* Gallery */
    .gallery__subtitle {
        font-size: 1.25rem;
    }

    .gallery__grid {
        grid-template-columns: repeat(2, 1fr);
        height: 384px;
    }

    .gallery-item--large {
        grid-column: span 2;
        grid-row: span 2;
        height: 100%;
    }

    .gallery-item--small {
        height: 100%;
    }

    .gallery-item--anniversary {
        height: 100%;
    }

    /* How-to */
    .howto__steps {
        flex-direction: row;
        gap: 64px;
    }

    .howto__arrow {
        display: block;
    }

    /* Target */
    .target__grid {
        grid-template-columns: repeat(2, auto);
        justify-content: center;
        gap: 20px 64px;
    }

    .target__card {
        padding: 48px 48px;
    }

    .target__text {
        font-size: 1.125rem;
    }

    .target__check {
        width: 28px;
        height: 28px;
    }

    /* Offer */
    .offer__body {
        padding: 40px 48px;
    }

    .offer__product-name {
        font-size: 1.875rem;
    }

    .offer__special-price {
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }

    .offer__price-number {
        font-size: 5rem;
    }

    .offer__price-unit {
        font-size: 1.875rem;
    }

    .offer__cta {
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__contact {
        text-align: right;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        padding-left: 48px;
    }

    .footer__links {
        justify-content: flex-end;
    }

    /* Sticky CTA非表示（PC） */
    .sticky-cta {
        display: none;
    }
}


/* ==========================================================================
   20. Responsive — lg (min-width: 1024px)
   ========================================================================== */
@media (min-width: 1024px) {
    .container {
        padding-left: 32px;
        padding-right: 32px;
    }

    /* Hero */
    .hero {
        padding-top: 120px;
        padding-bottom: 100px;
    }

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

    .hero__title {
        font-size: 3rem;
    }

    .hero__visual {
        height: 600px;
    }

    /* Gallery */
    .gallery__grid {
        grid-template-columns: repeat(4, 1fr);
        height: 384px;
    }

    .gallery-item--large {
        grid-column: span 2;
        grid-row: span 2;
    }

    .gallery-item--yoga {
        grid-column: span 2;
    }

    /* Lemon */
    .lemon__image {
        height: 384px;
    }
}


/* ==========================================================================
   21. Responsive — xl (min-width: 1280px)
   ========================================================================== */
@media (min-width: 1280px) {
    .hero__title {
        font-size: 3.75rem;
    }
}