/* =============================================================
   タダつく — Receipt Green Design System (案B)
   Mercury × Wise × Stripe
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Noto+Serif+JP:wght@700;900&family=JetBrains+Mono:wght@400;500&family=Instrument+Sans:wght@500;700&display=swap');

:root {
    --td-paper:         #F4F0E8;
    --td-paper-deep:    #EDE7D8;
    --td-forest:        #0F3B2E;
    --td-forest-soft:   #1A5742;
    --td-green:         #16A34A;
    --td-ink:           #1A1A1A;
    --td-ink-soft:      #3A3A3A;
    --td-line:          #D9D3C3;
    --td-line-strong:   #B8AF98;
    --td-amount-red:    #B91C1C;
    --td-neutral-500:   #6B6257;
    --td-neutral-300:   #9A9284;

    --td-font-jp:       'Noto Sans JP', -apple-system, sans-serif;
    --td-font-serif:    'Noto Serif JP', 'Yu Mincho', serif;
    --td-font-en:       'Instrument Sans', 'Söhne', -apple-system, sans-serif;
    --td-font-mono:     'JetBrains Mono', 'Menlo', ui-monospace, monospace;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--td-font-jp);
    font-weight: 400;
    line-height: 1.8;
    color: var(--td-ink);
    background: var(--td-paper);
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "palt" 1;
    letter-spacing: 0.01em;
    min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─────────── Header ─────────── */
.site-header {
    padding: 20px 0;
    border-bottom: 1px solid var(--td-line);
    background: var(--td-paper);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(6px);
}
.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.logo {
    font-family: var(--td-font-jp);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--td-ink);
    text-decoration: none;
    letter-spacing: 0.02em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1;
}
.logo::before {
    content: "";
    width: 14px;
    height: 14px;
    display: inline-block;
    background: var(--td-forest);
    mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M2 8 L6.5 12.5 L14 4' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/></svg>") center/contain no-repeat;
    -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M2 8 L6.5 12.5 L14 4' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/></svg>") center/contain no-repeat;
}
.logo__sub {
    font-family: var(--td-font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--td-neutral-500);
    letter-spacing: 0.05em;
    margin-left: 4px;
    position: relative;
    padding: 0 8px;
}
.logo__sub::before, .logo__sub::after {
    content: "─";
    color: var(--td-line-strong);
    margin: 0 2px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    font-family: var(--td-font-jp);
    font-size: 0.85rem;
    font-weight: 500;
}
.site-nav a {
    color: var(--td-ink-soft);
    text-decoration: none;
    transition: color 0.2s;
}
.site-nav a:hover {
    color: var(--td-forest);
}

@media (max-width: 768px) {
    .site-nav a:not(.btn) { display: none; }
}
@media (max-width: 480px) {
    .logo__sub { display: none; }
    .logo { white-space: nowrap; }
    .btn--sm { padding: 8px 14px; font-size: 0.78rem; }
}

/* ─────────── Buttons ─────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--td-font-jp);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
    border-radius: 3px;
    transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
    cursor: pointer;
    border: 1px solid transparent;
    line-height: 1;
    white-space: nowrap;
}
.btn--sm { padding: 8px 18px; font-size: 0.8rem; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }
.btn.btn--accent,
a.btn--accent {
    background: var(--td-forest);
    color: var(--td-paper) !important;
}
.btn.btn--accent:hover,
a.btn--accent:hover {
    background: var(--td-forest-soft);
    color: #ffffff !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(15, 59, 46, 0.18);
}
.btn--ghost {
    background: transparent;
    color: var(--td-ink);
    border-color: var(--td-line-strong);
}
.btn--ghost:hover {
    background: var(--td-paper-deep);
    border-color: var(--td-forest);
}
.btn--outline-light {
    background: transparent;
    color: var(--td-paper);
    border-color: rgba(244, 240, 232, 0.4);
}
.btn--outline-light:hover {
    background: rgba(244, 240, 232, 0.1);
    border-color: var(--td-paper);
}

/* ─────────── Hero ─────────── */
.hero {
    padding: 80px 0 100px;
    position: relative;
    background:
        radial-gradient(1200px 600px at 85% -20%, rgba(15, 59, 46, 0.04), transparent 60%),
        var(--td-paper);
    overflow: hidden;
}

.hero__eyebrow {
    font-family: var(--td-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--td-neutral-500);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 32px;
    padding: 0 16px;
    display: inline-block;
    position: relative;
}
.hero__eyebrow::before,
.hero__eyebrow::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 32px;
    height: 1px;
    background: var(--td-line-strong);
}
.hero__eyebrow::before { left: -32px; }
.hero__eyebrow::after  { right: -32px; }

.hero__headline {
    font-family: var(--td-font-jp);
    margin-bottom: 32px;
    letter-spacing: -0.02em;
    line-height: 1.18;
}
.hero__line {
    display: block;
}
.hero__line:first-child {
    font-family: var(--td-font-serif);
    font-weight: 900;
    font-size: clamp(2.6rem, 7vw, 5.4rem);
    color: var(--td-forest);
    letter-spacing: -0.01em;
}
.hero__line--accent {
    font-family: var(--td-font-jp);
    font-weight: 900;
    font-size: clamp(2rem, 6vw, 4.6rem);
    color: var(--td-ink);
    letter-spacing: -0.02em;
    margin-top: 4px;
}

.hero__sub {
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    line-height: 2;
    color: var(--td-ink-soft);
    max-width: 680px;
    margin-bottom: 16px;
}
.hero__sub strong {
    font-family: var(--td-font-en);
    font-weight: 700;
    color: var(--td-forest);
    font-size: 1.15em;
    letter-spacing: 0.01em;
    margin: 0 2px;
}
.hero__em {
    color: var(--td-green) !important;
    font-size: 1.3em !important;
}

.hero__note {
    font-size: 0.88rem;
    color: var(--td-neutral-500);
    line-height: 1.8;
    max-width: 620px;
    margin-bottom: 36px;
    padding-left: 18px;
    border-left: 2px solid var(--td-line-strong);
}

.hero__cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

/* Hero receipt card */
.hero__numbers {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: stretch;
    max-width: 720px;
    background: #FFFFFF;
    border: 1px solid var(--td-line-strong);
    border-radius: 2px;
    padding: 32px 36px;
    position: relative;
    box-shadow: 0 1px 0 var(--td-line);
}
.hero__numbers::before {
    content: "RECEIPT / ESTIMATE";
    position: absolute;
    top: -11px;
    left: 24px;
    background: #FFFFFF;
    padding: 0 10px;
    font-family: var(--td-font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--td-neutral-300);
    letter-spacing: 0.18em;
}

.number-box__label {
    font-family: var(--td-font-mono);
    font-size: 0.7rem;
    color: var(--td-neutral-500);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.number-box__value {
    font-family: var(--td-font-en);
    font-weight: 700;
    font-size: clamp(1.8rem, 3.8vw, 2.6rem);
    letter-spacing: -0.02em;
    color: var(--td-ink);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.number-box__value span {
    font-size: 0.5em;
    font-weight: 500;
    color: var(--td-neutral-500);
    margin-left: 4px;
}
.number-box__value--strike {
    color: var(--td-amount-red);
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    text-decoration-color: rgba(185, 28, 28, 0.6);
}
.number-box__value--accent {
    color: var(--td-forest);
}
.number-box--highlight::after {
    content: "✓";
    font-family: var(--td-font-en);
    color: var(--td-green);
    font-weight: 700;
    font-size: 1.1rem;
    margin-left: 12px;
    vertical-align: middle;
}
.number-box__arrow {
    align-self: center;
    color: var(--td-line-strong);
    font-size: 1.6rem;
    font-weight: 300;
}

@media (max-width: 600px) {
    .hero__numbers {
        grid-template-columns: 1fr;
        padding: 24px 20px;
    }
    .number-box__arrow {
        transform: rotate(90deg);
    }
}
@media (min-width: 900px) {
    .hero__numbers {
        max-width: 820px;
        width: 100%;
    }
}

/* ─────────── Sections (common) ─────────── */
.section {
    padding: 100px 0;
    position: relative;
}

.section__eyebrow {
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--td-forest);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section__title {
    font-family: var(--td-font-serif);
    font-size: clamp(1.6rem, 3.5vw, 2.6rem);
    font-weight: 900;
    color: var(--td-forest);
    line-height: 1.4;
    letter-spacing: -0.01em;
    margin-bottom: 24px;
    max-width: 840px;
}
.section__title--inverse {
    color: var(--td-paper);
}

.section__lead {
    font-size: 1rem;
    line-height: 2;
    color: var(--td-ink-soft);
    max-width: 720px;
    margin-bottom: 56px;
}
.section__lead--inverse {
    color: rgba(244, 240, 232, 0.85);
}

/* ─────────── Why Section ─────────── */
.section--why {
    background: #FFFFFF;
    border-top: 1px solid var(--td-line);
    border-bottom: 1px solid var(--td-line);
}
.why__body {
    max-width: 720px;
    margin-bottom: 48px;
}
.why__body p {
    font-size: 1rem;
    line-height: 2;
    color: var(--td-ink-soft);
    margin-bottom: 20px;
}
/* 「なぜ？仕様書を渡してから...」を引用枠化（視線停止ポイント） */
.why__body p:nth-child(4) {
    font-family: var(--td-font-serif);
    font-size: 1.15rem;
    color: var(--td-forest);
    line-height: 1.7;
    padding: 8px 0 8px 16px;
    border-left: 2px solid var(--td-green);
    margin: 24px 0;
}
.why__body strong {
    font-weight: 700;
    color: var(--td-forest);
    background: linear-gradient(transparent 60%, rgba(22, 163, 74, 0.18) 60%);
    padding: 0 2px;
}
.why__close {
    font-family: var(--td-font-serif);
    font-weight: 700;
    font-size: 1.5rem !important;
    color: var(--td-forest) !important;
    line-height: 1.6 !important;
    padding: 24px 28px !important;
    margin: 32px 0 0 !important;
    border-top: none !important;
    background: var(--td-paper);
    border-left: 3px solid var(--td-forest);
    border-radius: 2px;
}

.why__compare {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: start;
    padding: 40px;
    background: var(--td-paper);
    border-radius: 4px;
    border: 1px solid var(--td-line);
    max-width: 960px;
}
.why-col__label {
    font-family: var(--td-font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--td-neutral-500);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--td-line-strong);
}
.why-col--new .why-col__label {
    color: var(--td-forest);
}
.why-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.why-col li {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--td-ink-soft);
    padding-left: 20px;
    position: relative;
}
.why-col--old li::before {
    content: "×";
    position: absolute;
    left: 0;
    color: var(--td-amount-red);
    font-weight: 700;
}
.why-col--new li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--td-green);
    font-weight: 700;
}
.why-col--new li strong {
    color: var(--td-forest);
    font-weight: 700;
}
.why-col__vs {
    align-self: center;
    font-family: var(--td-font-serif);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--td-line-strong);
    font-style: italic;
}

@media (max-width: 700px) {
    .why__compare {
        grid-template-columns: 1fr;
        padding: 24px;
        gap: 20px;
    }
    .why-col__vs { text-align: center; }
}

/* ─────────── Steps ─────────── */
.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    counter-reset: step;
}
@media (min-width: 900px) {
    .steps {
        grid-template-columns: 1fr 1.2fr 1fr;
        gap: 24px;
    }
    .steps .step:nth-child(2) {
        background: var(--td-paper);
        border: 1px solid var(--td-line-strong);
    }
}
.step {
    background: #FFFFFF;
    border: 1px solid var(--td-line);
    padding: 32px 28px;
    border-radius: 4px;
    position: relative;
}
.step__num {
    font-family: var(--td-font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--td-green);
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}
.step__title {
    font-family: var(--td-font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--td-forest);
    margin-bottom: 14px;
    line-height: 1.5;
}
.step__lead {
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--td-ink-soft);
    margin-bottom: 16px;
}
.step__outcome {
    font-family: var(--td-font-mono);
    font-size: 0.78rem;
    color: var(--td-forest);
    padding: 12px 0 0 0;
    background: transparent;
    border-top: 1px dashed var(--td-line-strong);
    border-radius: 0;
    line-height: 1.6;
    letter-spacing: 0.01em;
}

/* ─────────── Cases ─────────── */
.section--cases {
    background: var(--td-paper-deep);
}

.case {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    background: #FFFFFF;
    border: 1px solid var(--td-line);
    border-radius: 6px;
    padding: 32px;
    margin-bottom: 40px;
}
.case:last-child { margin-bottom: 0; }
@media (min-width: 960px) {
    .case {
        grid-template-columns: 1.05fr 1fr;
        gap: 48px;
        padding: 48px;
    }
    .case--reverse .case__hero { order: 2; }
}

.case__hero {
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--td-line);
    background: var(--td-paper);
    aspect-ratio: 4 / 3;
    align-self: start;
}
.case__hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.case__body {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.case__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    color: var(--td-neutral-500);
    letter-spacing: 0.02em;
}
.case__meta span:not(.case__tag) {
    padding-left: 10px;
    position: relative;
}
.case__meta span:not(.case__tag)::before {
    content: "·";
    position: absolute;
    left: 0;
    color: var(--td-line-strong);
}

.case__tag {
    display: inline-block;
    font-family: var(--td-font-jp);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--td-forest);
    background: rgba(15, 59, 46, 0.08);
    padding: 4px 10px;
    border-radius: 3px;
    letter-spacing: 0.04em;
}

.case__title {
    font-family: var(--td-font-serif);
    font-size: clamp(1.2rem, 2vw, 1.45rem);
    font-weight: 700;
    color: var(--td-forest);
    line-height: 1.6;
    letter-spacing: -0.005em;
}

.case__lead {
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--td-ink-soft);
}

/* Compare block (receipt style) */
.compare {
    background: var(--td-paper);
    border: 1px solid var(--td-line);
    border-radius: 4px;
    padding: 22px;
    position: relative;
}
.compare::before {
    content: "ESTIMATE";
    position: absolute;
    top: -9px;
    left: 16px;
    background: var(--td-paper);
    padding: 0 8px;
    font-family: var(--td-font-mono);
    font-size: 0.65rem;
    color: var(--td-neutral-300);
    letter-spacing: 0.2em;
}
.compare__row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px dashed var(--td-line-strong);
}
.compare__col { text-align: center; }
.compare__label {
    font-family: var(--td-font-mono);
    font-size: 0.68rem;
    color: var(--td-neutral-500);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 6px;
}
.compare__val {
    font-family: var(--td-font-en);
    font-weight: 700;
    font-size: clamp(1.4rem, 3.2vw, 2rem);
    letter-spacing: -0.02em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    color: var(--td-ink);
}
.compare__val span {
    font-size: 0.5em;
    font-weight: 500;
    color: var(--td-neutral-500);
    margin-left: 3px;
}
.compare__val--strike {
    color: var(--td-amount-red);
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    text-decoration-color: rgba(185, 28, 28, 0.5);
}
.compare__val--accent { color: var(--td-forest); }
.compare__time {
    font-family: var(--td-font-mono);
    font-size: 0.7rem;
    color: var(--td-neutral-500);
    margin-top: 5px;
    letter-spacing: 0.02em;
}
.compare__arrow {
    color: var(--td-line-strong);
    font-size: 1.2rem;
    font-weight: 300;
}
.compare__chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    margin-top: 14px;
}
.compare__chips span {
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    color: var(--td-neutral-500);
    padding: 5px 10px;
    background: #FFFFFF;
    border: 1px solid var(--td-line);
    border-radius: 12px;
    letter-spacing: 0.02em;
}
.compare__chips strong {
    color: var(--td-ink);
    font-weight: 700;
    margin: 0 2px;
}
.compare__chips .compare__chip--accent {
    background: rgba(22, 163, 74, 0.1);
    border-color: rgba(22, 163, 74, 0.3);
    color: var(--td-forest);
}
.compare__chips .compare__chip--accent strong {
    color: var(--td-green);
    font-size: 1.05em;
}

@media (max-width: 520px) {
    .compare__row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .compare__arrow {
        transform: rotate(90deg);
    }
}

/* Details accordion */
.case__details {
    border-top: 1px solid var(--td-line);
    padding-top: 14px;
}
.case__details summary {
    font-family: var(--td-font-jp);
    font-size: 0.8rem;
    color: var(--td-neutral-500);
    cursor: pointer;
    list-style: none;
    padding: 4px 0;
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
    transition: color 0.15s;
}
.case__details summary::-webkit-details-marker { display: none; }
.case__details summary::before {
    content: "＋";
    color: var(--td-forest);
    width: 12px;
    font-weight: 700;
}
.case__details[open] summary::before { content: "−"; }
.case__details summary:hover { color: var(--td-forest); }

.case__details dl {
    margin-top: 14px;
    padding: 20px;
    background: var(--td-paper);
    border-radius: 4px;
    display: grid;
    gap: 10px;
}
.case__details dt {
    font-family: var(--td-font-jp);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--td-forest);
    letter-spacing: 0.04em;
    margin-top: 10px;
}
.case__details dt:first-child { margin-top: 0; }
.case__details dd {
    font-size: 0.82rem;
    color: var(--td-ink-soft);
    line-height: 1.9;
}
.case__details .spec-sheet {
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    background: #FFFFFF;
    border: 1px dashed var(--td-line-strong);
    padding: 14px 16px;
    border-radius: 3px;
    color: var(--td-ink);
    line-height: 1.9;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ─────────── Pricing ─────────── */
.section--pricing {
    background: #FFFFFF;
}
.pricing {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 48px;
}
@media (min-width: 900px) {
    .pricing {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        align-items: stretch;
    }
}
.pricing__phase {
    background: var(--td-paper);
    border: 1px solid var(--td-line);
    padding: 32px 28px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
}
.pricing__phase--main {
    background: var(--td-forest);
    border-color: var(--td-forest);
    color: var(--td-paper);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(15, 59, 46, 0.12);
}
.pricing__phase-num {
    font-family: var(--td-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--td-green);
    letter-spacing: 0.15em;
    margin-bottom: 14px;
}
.pricing__phase--main .pricing__phase-num { color: rgba(244, 240, 232, 0.6); }
.pricing__phase-title {
    font-family: var(--td-font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--td-forest);
    margin-bottom: 20px;
}
.pricing__phase--main .pricing__phase-title { color: var(--td-paper); }
.pricing__phase-price {
    font-family: var(--td-font-en);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--td-ink);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
    line-height: 1.2;
}
.pricing__phase--main .pricing__phase-price {
    color: var(--td-paper);
}
.pricing__phase-price strong {
    font-weight: 900;
    font-size: 1.1em;
}
.pricing__phase-price span {
    font-size: 0.6em;
    font-weight: 500;
    color: var(--td-neutral-500);
    margin-left: 4px;
}
.pricing__phase--main .pricing__phase-price span {
    color: rgba(244, 240, 232, 0.6);
}
.pricing__phase-duration {
    font-family: var(--td-font-mono);
    font-size: 0.8rem;
    color: var(--td-neutral-500);
    margin-bottom: 20px;
    letter-spacing: 0.03em;
}
.pricing__phase--main .pricing__phase-duration {
    color: rgba(244, 240, 232, 0.7);
}
.pricing__phase-content {
    font-size: 0.88rem;
    line-height: 1.9;
    color: var(--td-ink-soft);
    margin-top: auto;
}
.pricing__phase--main .pricing__phase-content {
    color: rgba(244, 240, 232, 0.85);
}

.pricing__note {
    padding: 24px 28px;
    background: rgba(22, 163, 74, 0.05);
    border-left: 3px solid var(--td-green);
    border-radius: 2px;
    max-width: 880px;
}
.pricing__note p {
    font-size: 0.92rem;
    line-height: 1.9;
    color: var(--td-ink-soft);
}
.pricing__note strong {
    color: var(--td-forest);
    font-weight: 700;
}

/* ─────────── FAQ ─────────── */
.section--faq {
    background: var(--td-paper);
}
.faq {
    display: grid;
    gap: 8px;
    max-width: 860px;
}
.faq__item {
    background: #FFFFFF;
    border: 1px solid var(--td-line);
    border-radius: 4px;
    padding: 18px 22px;
}
.faq__item summary {
    font-family: var(--td-font-jp);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--td-ink);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    line-height: 1.6;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
    content: "＋";
    color: var(--td-forest);
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.2s;
    flex-shrink: 0;
}
.faq__item[open] summary::after {
    content: "−";
}
.faq__item p {
    margin-top: 14px;
    font-size: 0.88rem;
    line-height: 2;
    color: var(--td-ink-soft);
    padding-top: 14px;
    border-top: 1px dashed var(--td-line-strong);
}
.faq__item strong {
    color: var(--td-forest);
    font-weight: 700;
}

/* ─────────── Contact ─────────── */
.section--contact {
    background: var(--td-forest);
    color: var(--td-paper);
    padding: 100px 0 80px;
    position: relative;
}
.section--contact::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--td-green);
    opacity: 0.4;
}

.contact-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.contact-info {
    font-family: var(--td-font-mono);
    font-size: 0.82rem;
    color: rgba(244, 240, 232, 0.7);
    line-height: 2;
    padding-top: 28px;
    border-top: 1px solid rgba(244, 240, 232, 0.15);
}
.contact-info a {
    color: var(--td-paper);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(244, 240, 232, 0.3);
}
.contact-info a:hover {
    text-decoration-color: var(--td-paper);
}

/* ─────────── Footer ─────────── */
.site-footer {
    background: var(--td-ink);
    color: var(--td-paper);
    padding: 60px 0 32px;
}
.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 40px;
}
@media (min-width: 700px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 48px;
    }
}
.footer__brand .logo {
    color: var(--td-paper);
    margin-bottom: 12px;
}
.footer__brand .logo::before {
    background: var(--td-green);
}
.footer__brand p {
    font-family: var(--td-font-serif);
    font-size: 0.95rem;
    color: rgba(244, 240, 232, 0.7);
    line-height: 1.7;
}
.footer__links h4 {
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: rgba(244, 240, 232, 0.5);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.footer__links a {
    display: block;
    font-family: var(--td-font-jp);
    font-size: 0.88rem;
    color: rgba(244, 240, 232, 0.85);
    text-decoration: none;
    padding: 4px 0;
    transition: color 0.15s;
}
.footer__links a:hover {
    color: var(--td-paper);
}
.footer__copy {
    font-family: var(--td-font-mono);
    font-size: 0.72rem;
    color: rgba(244, 240, 232, 0.4);
    letter-spacing: 0.05em;
    padding-top: 24px;
    border-top: 1px solid rgba(244, 240, 232, 0.1);
}

/* ─────────── Responsive ─────────── */
@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .hero { padding: 64px 0 80px; }
    .case {
        padding: 24px;
        gap: 24px;
    }
}