@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap');

:root {
    --sf-bg-base: #F4F5F8;
    --sf-bg-card: #FFFFFF;
    --sf-ink: #111111;
    --sf-ink-soft: #4B5058;
    --sf-ink-line: #1A1A1A;
    --sf-cyan: #00E5FF;
    --sf-graphite: #1E1E1E;
    --sf-grid-line: #D0D3D9;
    --sf-text-dark: #111111;
    --sf-text-light: #FFFFFF;
    --sf-text-mute: #B0B5BD;
    --sf-shadow-soft: rgba(0, 0, 0, 0.06);
    --sf-line: 2px;
    --sf-pad-card: 32px;
    --sf-gap: 24px;
}

* {
    box-sizing: border-box;
    border-radius: 0 !important;
}

html {
    overflow-x: hidden;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--sf-bg-base);
    color: var(--sf-ink);
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    letter-spacing: 0;
    -webkit-font-smoothing: antialiased;
}

body {
    position: relative;
    min-height: 100vh;
}

strong, p, span, a, h1, h2, h3, h4, h5, h6, li, button, label, small {
    color: inherit;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease-out;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--sf-ink);
    margin: 0 0 16px 0;
}

.sf-jp {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.2em;
}

.sf-jp-md {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    letter-spacing: 0.16em;
}

.sf-bg-mesh {
    position: fixed;
    inset: 0;
    z-index: -2;
    background-color: var(--sf-bg-base);
    background-image:
        linear-gradient(to right, var(--sf-grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--sf-grid-line) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: -1px -1px;
    opacity: 1;
}

.sf-bg-mesh::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: var(--sf-bg-base);
    opacity: 0.96;
    pointer-events: none;
}

.sf-kenetic-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    opacity: 1;
    width: 100%;
    max-width: 100vw;
}

.sf-kenetic-line {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    font-size: clamp(80px, 12vw, 200px);
    color: var(--sf-cyan);
    opacity: 0.04;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    line-height: 1;
    animation: sfKeneticScroll 60s linear infinite;
    will-change: transform;
}

.sf-kenetic-line:nth-child(2) {
    animation-duration: 75s;
    animation-direction: reverse;
    color: var(--sf-ink);
    opacity: 0.03;
}

.sf-kenetic-line:nth-child(3) {
    animation-duration: 90s;
    color: var(--sf-cyan);
    opacity: 0.05;
}

.sf-kenetic-line:nth-child(4) {
    animation-duration: 50s;
    animation-direction: reverse;
}

@keyframes sfKeneticScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.sf-container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 1;
}

.sf-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    height: 72px;
}

.sf-header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.sf-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.sf-brand-diamond {
    width: 40px;
    height: 40px;
    transform: rotate(45deg);
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: border-color 0.15s ease-out;
}

.sf-brand-diamond::before,
.sf-brand-diamond::after {
    content: "";
    position: absolute;
    background: var(--sf-ink-line);
    transition: background 0.15s ease-out;
}

.sf-brand-diamond::before {
    width: 24px;
    height: 2px;
}

.sf-brand-diamond::after {
    width: 2px;
    height: 24px;
}

.sf-brand:hover .sf-brand-diamond {
    border-color: var(--sf-cyan);
}

.sf-brand:hover .sf-brand-diamond::before,
.sf-brand:hover .sf-brand-diamond::after {
    background: var(--sf-cyan);
}

.sf-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.sf-brand-domain {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--sf-ink);
    letter-spacing: 0.04em;
    text-transform: lowercase;
}

.sf-brand-site {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    font-size: 11px;
    color: var(--sf-ink-soft);
    letter-spacing: 0.2em;
    margin-top: 2px;
}

.sf-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sf-nav-row-1 {
    display: flex;
    gap: 10px;
}

.sf-nav-row-2 {
    display: flex;
    gap: 10px;
    transform: translateY(24px);
}

.sf-nav-link {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 13px;
    color: var(--sf-ink);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 8px 16px;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    transition: all 0.15s ease-out;
    display: inline-block;
    white-space: nowrap;
}

.sf-nav-link:hover {
    border-color: var(--sf-cyan);
    background: rgba(0, 229, 255, 0.10);
    color: var(--sf-ink);
}

.sf-nav-link.is-active {
    background: var(--sf-cyan);
    color: var(--sf-text-light);
    border-color: var(--sf-cyan);
}

.sf-burger {
    display: none;
    width: 44px;
    height: 44px;
    border: 2px solid var(--sf-cyan);
    background: var(--sf-bg-card);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    padding: 0;
    cursor: pointer;
}

.sf-burger span {
    display: block;
    width: 20px;
    height: 3px;
    background: var(--sf-ink);
    transition: all 0.2s ease-out;
}

.sf-burger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.sf-burger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.sf-burger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.sf-mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: min(86vw, 360px);
    background: var(--sf-bg-card);
    border-right: var(--sf-line) solid var(--sf-ink-line);
    z-index: 95;
    transform: translateX(-105%);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: 88px 32px 32px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.sf-mobile-menu.is-open {
    transform: translateX(0);
}

.sf-mobile-menu-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(17, 17, 17, 0.55);
    z-index: 94;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease-out, visibility 0.25s;
}

.sf-mobile-menu-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

.sf-mobile-menu-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-ink-line);
    color: var(--sf-ink);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
}

.sf-mobile-link {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 24px;
    color: var(--sf-ink);
    padding: 14px 0;
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.01em;
}

.sf-mobile-link::before {
    content: "◆";
    color: var(--sf-cyan);
    font-size: 14px;
    transform: rotate(45deg);
}

.sf-mobile-link:hover {
    background: rgba(0, 229, 255, 0.06);
    padding-left: 8px;
}

.sf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 14px 24px;
    min-height: 48px;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    color: var(--sf-ink);
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out, background 0.15s, color 0.15s, border-color 0.15s;
    position: relative;
    box-shadow: 6px 6px 0 0 var(--sf-shadow-soft);
    text-decoration: none;
}

.sf-btn:hover {
    transform: translateY(-3px);
    box-shadow: 8px 8px 0 0 var(--sf-ink);
    border-color: var(--sf-cyan);
    color: var(--sf-ink);
}

.sf-btn-primary {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    border-color: var(--sf-cyan);
    box-shadow: 6px 6px 0 0 var(--sf-ink-line);
}

.sf-btn-primary:hover {
    background: var(--sf-bg-card);
    color: var(--sf-cyan);
    border-color: var(--sf-cyan);
    box-shadow: 8px 8px 0 0 var(--sf-ink);
}

.sf-btn-dark {
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    border-color: var(--sf-cyan);
}

.sf-btn-dark:hover {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    border-color: var(--sf-cyan);
    box-shadow: 8px 8px 0 0 var(--sf-ink);
}

.sf-btn-ghost {
    background: transparent;
    color: var(--sf-ink);
    border-color: var(--sf-ink-line);
}

.sf-btn-ghost:hover {
    background: var(--sf-ink);
    color: var(--sf-text-light);
    border-color: var(--sf-ink);
}

.sf-btn-lg {
    min-height: 56px;
    padding: 18px 32px;
    font-size: 15px;
    min-width: 240px;
}

.sf-card {
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-ink-line);
    box-shadow: 8px 8px 0 0 var(--sf-shadow-soft);
    padding: var(--sf-pad-card);
    position: relative;
    transition: transform 0.18s ease-out, box-shadow 0.18s ease-out, border-color 0.18s;
    color: var(--sf-ink);
}

.sf-card:hover {
    transform: translateY(-4px);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
    border-color: var(--sf-cyan);
}

.sf-card-dark {
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    border-color: var(--sf-cyan);
    box-shadow: 8px 8px 0 0 rgba(0, 229, 255, 0.2);
}

.sf-card-dark:hover {
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
}

.sf-card-dark .sf-card-title,
.sf-card-dark p,
.sf-card-dark strong {
    color: var(--sf-text-light);
}

.sf-eyebrow {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--sf-ink-soft);
    margin-bottom: 12px;
    display: inline-block;
}

.sf-eyebrow-cyan {
    color: var(--sf-cyan);
}

.sf-section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--sf-ink-soft);
    margin-bottom: 20px;
}

.sf-section-eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--sf-cyan);
}

.sf-h1 {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: clamp(40px, 7vw, 88px);
    line-height: 1;
    letter-spacing: -0.025em;
    color: var(--sf-ink);
    margin: 0;
}

.sf-h2 {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: clamp(32px, 4.6vw, 56px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--sf-ink);
    margin: 0;
}

.sf-h3 {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: clamp(22px, 2.6vw, 32px);
    line-height: 1.15;
    color: var(--sf-ink);
    margin: 0;
}

.sf-h-jp {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    letter-spacing: 0.16em;
}

.sf-cyan-underline {
    border-bottom: 3px solid var(--sf-cyan);
    padding-bottom: 4px;
}

.sf-section {
    padding: clamp(72px, 10vw, 140px) 0;
    position: relative;
    z-index: 1;
}

.sf-section-tight {
    padding: clamp(56px, 7vw, 96px) 0;
}

.sf-section-dark {
    background: var(--sf-graphite);
    color: var(--sf-text-light);
}

.sf-section-dark .sf-h1,
.sf-section-dark .sf-h2,
.sf-section-dark .sf-h3,
.sf-section-dark p,
.sf-section-dark .sf-eyebrow {
    color: var(--sf-text-light);
}

.sf-section-dark .sf-eyebrow {
    color: var(--sf-text-mute);
}

.sf-divider {
    height: 2px;
    background: var(--sf-ink-line);
    margin: 0;
    border: 0;
}

.sf-divider-cyan {
    background: var(--sf-cyan);
}

.sf-hero {
    padding: clamp(64px, 9vw, 120px) 0 clamp(80px, 11vw, 140px);
    position: relative;
}

.sf-hero-inner {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: clamp(36px, 5vw, 72px);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
    position: relative;
    z-index: 2;
}

.sf-hero-tag {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.4em;
    color: var(--sf-ink-soft);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.sf-hero-tag::before {
    content: "// ";
    color: var(--sf-cyan);
}

.sf-hero-title {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: clamp(44px, 7vw, 88px);
    line-height: 1.0;
    letter-spacing: -0.025em;
    color: var(--sf-ink);
    margin: 0 0 24px 0;
}

.sf-hero-title .sf-cyan-bar {
    background: linear-gradient(transparent 64%, var(--sf-cyan) 64%, var(--sf-cyan) 88%, transparent 88%);
    padding: 0 2px;
}

.sf-hero-jp {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    font-size: clamp(16px, 1.8vw, 20px);
    letter-spacing: 0.16em;
    color: var(--sf-cyan);
    margin: 0 0 32px 0;
}

.sf-hero-lead {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: clamp(15px, 1.4vw, 18px);
    line-height: 1.65;
    color: var(--sf-ink);
    max-width: 640px;
    margin: 0 0 36px 0;
}

.sf-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.sf-hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: clamp(36px, 5vw, 56px);
}

.sf-hero-stat {
    border: 2px solid var(--sf-cyan);
    background: var(--sf-bg-card);
    padding: 20px 18px;
    position: relative;
}

.sf-hero-stat-num {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 3.4vw, 44px);
    color: var(--sf-ink);
    line-height: 1;
    letter-spacing: -0.02em;
    border-bottom: 3px solid var(--sf-cyan);
    display: inline-block;
    padding-bottom: 4px;
}

.sf-hero-stat-label {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sf-ink-soft);
    margin-top: 12px;
    line-height: 1.4;
}

.sf-marquee {
    background: var(--sf-bg-base);
    border-top: var(--sf-line) solid var(--sf-ink-line);
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    overflow: hidden;
    padding: 40px 0;
    position: relative;
}

.sf-marquee-track {
    display: flex;
    align-items: center;
    gap: 64px;
    animation: sfMarquee 28s linear infinite;
    white-space: nowrap;
    width: max-content;
}

.sf-marquee:hover .sf-marquee-track {
    animation-duration: 110s;
}

.sf-marquee-item {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--sf-ink);
    display: inline-flex;
    align-items: center;
    gap: 24px;
    text-transform: uppercase;
}

.sf-marquee-item.is-cyan {
    color: var(--sf-cyan);
}

.sf-marquee-dot {
    width: 18px;
    height: 18px;
    background: var(--sf-cyan);
    transform: rotate(45deg);
    display: inline-block;
    flex-shrink: 0;
}

@keyframes sfMarquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.sf-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.sf-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.sf-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.sf-grid-asym {
    display: grid;
    grid-template-columns: 30% 45% 25%;
    gap: 32px;
    align-items: start;
}

.sf-img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sf-img-frame {
    border: var(--sf-line) solid var(--sf-ink-line);
    overflow: hidden;
    background: var(--sf-graphite);
    position: relative;
}

.sf-img-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(17, 17, 17, 0.18);
    pointer-events: none;
}

.sf-icon {
    width: 56px;
    height: 56px;
    border: 2px solid var(--sf-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: var(--sf-cyan);
    flex-shrink: 0;
}

.sf-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--sf-cyan);
    fill: none;
    stroke-width: 2;
    stroke-linecap: square;
    stroke-linejoin: miter;
}

.sf-icon-dark {
    border-color: var(--sf-cyan);
    background: rgba(0, 229, 255, 0.08);
}

.sf-section-head {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: clamp(40px, 5vw, 64px);
    max-width: 880px;
}

.sf-section-head-center {
    text-align: center;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
}

.sf-section-head-row {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: space-between;
    align-items: flex-end;
}

.sf-flex-grow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.sf-flex-grow-card {
    transition: flex-grow 0.45s ease-out, transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    overflow: hidden;
    cursor: pointer;
    min-height: 260px;
}

.sf-flex-grow-card:hover {
    flex-grow: 2.2;
    border-color: var(--sf-cyan);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
}

.sf-flex-grow-card:hover .sf-flex-grow-detail {
    opacity: 1;
    max-height: 220px;
    margin-top: 12px;
}

.sf-flex-grow-detail {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.35s ease-out, max-height 0.45s ease-out;
}

.sf-flex-grow-pattern {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    background-image:
        linear-gradient(45deg, var(--sf-cyan) 1px, transparent 1px),
        linear-gradient(-45deg, var(--sf-cyan) 1px, transparent 1px);
    background-size: 14px 14px;
    transition: opacity 0.35s ease-out;
}

.sf-flex-grow-card:hover .sf-flex-grow-pattern {
    opacity: 0.08;
}

.sf-process-strip {
    display: flex;
    gap: 0;
    overflow-x: auto;
    padding: 32px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.sf-process-strip::-webkit-scrollbar {
    height: 6px;
}

.sf-process-strip::-webkit-scrollbar-thumb {
    background: var(--sf-cyan);
}

.sf-process-card {
    flex: 0 0 clamp(280px, 36vw, 440px);
    height: 320px;
    margin-left: -60px;
    scroll-snap-align: center;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: transform 0.3s, z-index 0.3s, border-color 0.3s;
    z-index: 1;
    color: var(--sf-ink);
}

.sf-process-card:first-child {
    margin-left: 0;
}

.sf-process-card:hover {
    z-index: 50;
    transform: scale(1.04);
    border-color: var(--sf-cyan);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
}

.sf-process-card.is-active {
    z-index: 30;
    border-color: var(--sf-cyan);
}

.sf-process-num {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    font-size: 72px;
    line-height: 1;
    color: var(--sf-cyan);
    letter-spacing: -0.04em;
}

.sf-process-title {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: var(--sf-ink);
    margin: 12px 0 8px;
}

.sf-process-desc {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 14px;
    color: var(--sf-ink-soft);
    line-height: 1.6;
}

.sf-drag-canvas {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-base);
    min-height: 460px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    grid-auto-rows: auto;
    gap: 24px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .sf-drag-canvas {
        grid-template-columns: 1fr;
        min-height: auto;
        height: auto;
        gap: 16px;
        padding: 16px;
        overflow: visible;
    }
}

.sf-drag-card {
    position: relative;
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-ink-line);
    padding: 22px;
    box-shadow: 6px 6px 0 0 var(--sf-shadow-soft);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    color: var(--sf-ink);
    min-height: 240px;
    display: flex;
    flex-direction: column;
}

.sf-drag-card:hover {
    border-color: var(--sf-cyan);
    box-shadow: 8px 8px 0 0 var(--sf-cyan);
    transform: translateY(-2px);
}

.sf-drag-card:active {
    transform: scale(0.98);
}

@media (max-width: 768px) {
    .sf-drag-card {
        min-height: auto;
    }
}

.sf-team-list {
    border-top: var(--sf-line) solid var(--sf-ink-line);
}

.sf-team-row {
    display: grid;
    grid-template-columns: 60px 1fr 220px 44px;
    gap: 24px;
    align-items: center;
    padding: 22px 12px;
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    cursor: pointer;
    position: relative;
    transition: padding 0.2s;
    background: transparent;
}

.sf-team-row:hover {
    border-bottom-style: dashed;
    border-bottom-color: var(--sf-cyan);
    padding-left: 24px;
    background: rgba(0, 229, 255, 0.04);
}

.sf-team-row-num {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 14px;
    color: var(--sf-cyan);
    letter-spacing: 0.1em;
}

.sf-team-row-name {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 22px;
    color: var(--sf-ink);
    line-height: 1.2;
}

.sf-team-row-role {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 13px;
    color: var(--sf-ink-soft);
    letter-spacing: 0.1em;
}

.sf-team-row-arrow {
    color: var(--sf-cyan);
    font-size: 18px;
    text-align: right;
}

.sf-team-portrait {
    position: absolute;
    right: -180px;
    top: 50%;
    transform: translateY(-50%) translateX(40px);
    width: 200px;
    height: 240px;
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-cyan);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease-out, transform 0.25s ease-out;
    z-index: 50;
    overflow: hidden;
}

.sf-team-row:hover .sf-team-portrait {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.sf-faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: var(--sf-line) solid var(--sf-ink-line);
}

.sf-faq-item {
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    border-left: 3px solid transparent;
    transition: border-left-color 0.25s;
    background: var(--sf-bg-card);
}

.sf-faq-item.is-open {
    border-left-color: var(--sf-cyan);
}

.sf-faq-trigger {
    width: 100%;
    background: transparent;
    border: 0;
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-align: left;
    cursor: pointer;
    color: var(--sf-ink);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 16px;
    line-height: 1.4;
}

.sf-faq-trigger:hover {
    color: var(--sf-cyan);
}

.sf-faq-marker {
    width: 28px;
    height: 28px;
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.sf-faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

.sf-faq-item.is-open .sf-faq-content {
    max-height: 600px;
}

.sf-faq-answer {
    padding: 0 24px 24px;
    color: var(--sf-ink-soft);
    font-size: 15px;
    line-height: 1.7;
}

.sf-reviews-wrap {
    position: relative;
    padding: 0 56px;
}

.sf-reviews-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 24px 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    perspective: 1200px;
}

.sf-reviews-track::-webkit-scrollbar {
    height: 6px;
}

.sf-reviews-track::-webkit-scrollbar-thumb {
    background: var(--sf-cyan);
}

.sf-review-card {
    flex: 0 0 clamp(280px, 38vw, 380px);
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-ink-line);
    padding: 28px;
    scroll-snap-align: center;
    transition: transform 0.4s, border-color 0.3s, box-shadow 0.3s, opacity 0.3s;
    color: var(--sf-ink);
    position: relative;
    opacity: 0.7;
    transform: rotateY(20deg);
}

.sf-review-card.is-active {
    opacity: 1;
    transform: rotateY(0);
    border-color: var(--sf-cyan);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
    z-index: 5;
}

.sf-review-card.is-side {
    opacity: 0.55;
    transform: rotateY(28deg) scale(0.96);
}

.sf-review-quote {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--sf-ink);
    margin: 0 0 24px;
    position: relative;
    padding-left: 18px;
    border-left: 3px solid var(--sf-cyan);
}

.sf-review-foot {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: var(--sf-line) solid var(--sf-ink-line);
    padding-top: 18px;
}

.sf-review-avatar {
    width: 56px;
    height: 56px;
    border: 2px solid var(--sf-cyan);
    flex-shrink: 0;
    object-fit: cover;
}

.sf-review-name {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 15px;
    color: var(--sf-ink);
}

.sf-review-meta {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 12px;
    color: var(--sf-ink-soft);
    letter-spacing: 0.06em;
    margin-top: 4px;
}

.sf-review-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    border: 0;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, transform 0.15s;
    z-index: 8;
}

.sf-review-arrow:hover {
    background: var(--sf-bg-card);
    color: var(--sf-cyan);
    border: 2px solid var(--sf-cyan);
    box-shadow: 6px 6px 0 0 var(--sf-cyan);
}

.sf-review-arrow.prev { left: 0; }
.sf-review-arrow.next { right: 0; }

.sf-contact-split {
    display: grid;
    grid-template-columns: 45% 55%;
    align-items: start;
    gap: 0;
}

.sf-contact-left {
    position: sticky;
    top: 96px;
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    padding: clamp(40px, 5vw, 64px);
    border: var(--sf-line) solid var(--sf-cyan);
    box-shadow: 10px 10px 0 0 rgba(0, 229, 255, 0.18);
}

.sf-contact-left h2 {
    color: var(--sf-text-light);
}

.sf-contact-phone {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 3.4vw, 42px);
    color: var(--sf-text-light);
    letter-spacing: -0.02em;
    line-height: 1.1;
    display: block;
    margin: 18px 0 12px;
}

.sf-contact-email {
    color: var(--sf-cyan);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 18px;
}

.sf-contact-address {
    color: var(--sf-text-mute);
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 14px;
    letter-spacing: 0.08em;
    margin-top: 24px;
    border-top: var(--sf-line) solid rgba(255,255,255,0.12);
    padding-top: 24px;
    line-height: 1.7;
}

.sf-form-card {
    background: var(--sf-bg-card);
    border: var(--sf-line) solid var(--sf-ink-line);
    padding: clamp(32px, 4vw, 56px);
    box-shadow: 10px 10px 0 0 var(--sf-shadow-soft);
}

.sf-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.sf-form-grid .sf-form-full {
    grid-column: 1 / -1;
}

.sf-form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sf-form-label {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sf-ink);
}

.sf-form-input,
.sf-form-textarea,
.sf-form-select {
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    padding: 14px 16px;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    color: var(--sf-ink);
    width: 100%;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: 0;
}

.sf-form-input::placeholder,
.sf-form-textarea::placeholder {
    color: var(--sf-ink-soft);
    opacity: 1;
}

.sf-form-input:focus,
.sf-form-textarea:focus,
.sf-form-select:focus {
    border-color: var(--sf-cyan);
    box-shadow: 4px 4px 0 0 var(--sf-cyan);
}

.sf-form-textarea {
    min-height: 140px;
    resize: vertical;
}

.sf-form-status {
    padding: 18px 20px;
    border: 2px solid var(--sf-cyan);
    background: rgba(0, 229, 255, 0.10);
    color: var(--sf-ink);
    font-weight: 600;
    margin-bottom: 18px;
    display: none;
}

.sf-form-status.is-visible {
    display: block;
}

.sf-footer {
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    border-top: var(--sf-line) solid var(--sf-cyan);
    position: relative;
    z-index: 2;
}

.sf-footer-main {
    padding: clamp(48px, 6vw, 80px) 0 40px;
}

.sf-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
    gap: 40px;
}

.sf-footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.sf-footer-mini-diamond {
    width: 16px;
    height: 16px;
    background: var(--sf-cyan);
    transform: rotate(45deg);
    flex-shrink: 0;
}

.sf-footer-domain {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 14px;
    color: var(--sf-text-light);
    letter-spacing: 0.06em;
}

.sf-footer-text {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 13px;
    color: var(--sf-text-mute);
    line-height: 1.7;
    letter-spacing: 0.04em;
}

.sf-footer-h {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sf-cyan);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: var(--sf-line) solid rgba(255,255,255,0.12);
}

.sf-footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sf-footer-list a {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 13px;
    color: var(--sf-text-mute);
    letter-spacing: 0.04em;
    transition: color 0.15s, padding 0.15s;
    display: inline-block;
}

.sf-footer-list a:hover {
    color: var(--sf-cyan);
    padding-left: 6px;
}

.sf-footer-contact-block {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 13px;
    color: var(--sf-text-mute);
    line-height: 1.8;
}

.sf-footer-contact-block strong {
    color: var(--sf-text-light);
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.sf-footer-contact-block a {
    color: var(--sf-text-light);
}

.sf-footer-contact-block a:hover {
    color: var(--sf-cyan);
}

.sf-footer-bar {
    padding: 18px 0;
    background: #141414;
    border-top: var(--sf-line) solid rgba(255,255,255,0.08);
}

.sf-footer-bar-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.sf-footer-copy {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 12px;
    color: var(--sf-text-mute);
    letter-spacing: 0.06em;
}

.sf-footer-mini {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.sf-footer-mini a {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    color: var(--sf-text-mute);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.15s;
}

.sf-footer-mini a:hover {
    color: var(--sf-cyan);
}

.sf-cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    right: auto;
    max-width: 420px;
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    border: var(--sf-line) solid var(--sf-cyan);
    box-shadow: 8px 8px 0 0 rgba(0, 229, 255, 0.18);
    padding: 22px 24px;
    z-index: 200;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
}

.sf-cookie-banner.is-hidden {
    display: none;
}

.sf-cookie-h {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sf-cyan);
    margin-bottom: 10px;
}

.sf-cookie-text {
    font-size: 13px;
    color: var(--sf-text-mute);
    line-height: 1.6;
    margin-bottom: 14px;
}

.sf-cookie-list {
    font-size: 11px;
    color: var(--sf-text-mute);
    line-height: 1.6;
    margin-bottom: 16px;
    padding-left: 16px;
}

.sf-cookie-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sf-cookie-btn {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 10px 14px;
    min-height: 36px;
    border: var(--sf-line) solid var(--sf-cyan);
    background: transparent;
    color: var(--sf-cyan);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.sf-cookie-btn:hover {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
}

.sf-cookie-btn.is-primary {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
}

.sf-cookie-btn.is-primary:hover {
    background: var(--sf-bg-card);
}

.sf-cookie-link {
    font-size: 11px;
    color: var(--sf-text-mute);
    text-decoration: underline;
    margin-left: 4px;
}

.sf-cookie-link:hover {
    color: var(--sf-cyan);
}

.sf-page-hero {
    padding: clamp(60px, 8vw, 110px) 0 clamp(40px, 5vw, 64px);
    position: relative;
}

.sf-page-hero-inner {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: clamp(28px, 4vw, 56px);
    box-shadow: 8px 8px 0 0 var(--sf-cyan);
    max-width: 920px;
}

.sf-page-hero h1 {
    font-size: clamp(36px, 5.4vw, 64px);
    margin: 0;
}

.sf-page-hero p {
    margin-top: 16px;
    color: var(--sf-ink-soft);
    max-width: 720px;
    font-size: 16px;
    line-height: 1.7;
}

.sf-breadcrumb {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sf-ink-soft);
    margin-bottom: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sf-breadcrumb a {
    color: var(--sf-ink-soft);
}

.sf-breadcrumb a:hover {
    color: var(--sf-cyan);
}

.sf-breadcrumb span {
    color: var(--sf-cyan);
}

.sf-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 6px 10px;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    color: var(--sf-ink);
}

.sf-tag-cyan {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    border-color: var(--sf-cyan);
}

.sf-price {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(22px, 2.4vw, 28px);
    color: var(--sf-ink);
    line-height: 1.1;
    border-top: 3px solid var(--sf-cyan);
    padding-top: 12px;
    margin-top: 12px;
    display: block;
}

.sf-price small {
    font-weight: 500;
    font-size: 12px;
    color: var(--sf-ink-soft);
    letter-spacing: 0.1em;
    display: block;
    text-transform: uppercase;
    margin-bottom: 4px;
    border: 0;
    padding: 0;
}

.sf-list-stack {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sf-list-stack li {
    padding: 14px 0;
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    display: flex;
    align-items: flex-start;
    gap: 14px;
    color: var(--sf-ink);
}

.sf-list-stack li::before {
    content: "▸";
    color: var(--sf-cyan);
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 14px;
    line-height: 1.6;
}

.sf-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-left: var(--sf-line) solid var(--sf-ink-line);
    padding-left: 24px;
}

.sf-timeline-item {
    padding: 18px 0;
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    position: relative;
}

.sf-timeline-item:last-child {
    border-bottom: 0;
}

.sf-timeline-item::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 24px;
    width: 14px;
    height: 14px;
    background: var(--sf-cyan);
    transform: rotate(45deg);
}

.sf-timeline-year {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 28px;
    color: var(--sf-cyan);
    line-height: 1;
    margin-bottom: 6px;
}

.sf-timeline-text {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-size: 13px;
    color: var(--sf-ink-soft);
    line-height: 1.6;
    letter-spacing: 0.04em;
}

.sf-stat-block {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sf-stat-num {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    font-size: clamp(40px, 4vw, 64px);
    color: var(--sf-ink);
    line-height: 1;
    letter-spacing: -0.04em;
}

.sf-stat-num.is-cyan {
    color: var(--sf-cyan);
}

.sf-stat-label {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--sf-ink-soft);
}

.sf-fade-up {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.sf-fade-up.is-in {
    opacity: 1;
    transform: translateY(0);
}

.sf-pattern-vinyl {
    background-image:
        linear-gradient(45deg, var(--sf-cyan) 1px, transparent 1px),
        linear-gradient(-45deg, var(--sf-cyan) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: 0.06;
}

.sf-tabs {
    display: flex;
    gap: 0;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    margin-bottom: 24px;
    overflow-x: auto;
}

.sf-tab {
    padding: 14px 22px;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--sf-ink);
    cursor: pointer;
    border-right: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.sf-tab:last-child {
    border-right: 0;
}

.sf-tab:hover {
    background: rgba(0, 229, 255, 0.08);
    color: var(--sf-cyan);
}

.sf-tab.is-active {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
}

.sf-tab-panel {
    display: none;
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: 28px;
}

.sf-tab-panel.is-active {
    display: block;
}

.sf-cta-band {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    padding: clamp(48px, 6vw, 72px) 0;
    border-top: var(--sf-line) solid var(--sf-ink-line);
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
    position: relative;
    z-index: 2;
}

.sf-cta-band h2 {
    color: var(--sf-text-dark);
}

.sf-cta-band p {
    color: var(--sf-text-dark);
    opacity: 0.85;
}

.sf-cta-band .sf-btn-primary {
    background: var(--sf-graphite);
    color: var(--sf-text-light);
    border-color: var(--sf-graphite);
    box-shadow: 6px 6px 0 0 rgba(0,0,0,0.18);
}

.sf-cta-band .sf-btn-primary:hover {
    background: var(--sf-bg-card);
    color: var(--sf-graphite);
    border-color: var(--sf-graphite);
    box-shadow: 8px 8px 0 0 rgba(0,0,0,0.18);
}

.sf-pagination {
    display: flex;
    gap: 0;
    margin-top: 32px;
    border: var(--sf-line) solid var(--sf-ink-line);
    width: max-content;
}

.sf-pagination a {
    padding: 12px 18px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 13px;
    color: var(--sf-ink);
    border-right: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    transition: background 0.15s;
}

.sf-pagination a:last-child {
    border-right: 0;
}

.sf-pagination a:hover {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
}

.sf-pagination a.is-current {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
}

.sf-alert {
    border: var(--sf-line) solid var(--sf-cyan);
    background: rgba(0, 229, 255, 0.08);
    padding: 18px 22px;
    color: var(--sf-ink);
    margin-bottom: 24px;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

.sf-section-divider {
    text-align: center;
    padding: 24px 0;
    position: relative;
    z-index: 2;
}

.sf-section-divider span {
    display: inline-block;
    width: 14px;
    height: 14px;
    background: var(--sf-cyan);
    transform: rotate(45deg);
    margin: 0 6px;
}

.sf-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.sf-portfolio-item {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    position: relative;
}

.sf-portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: 10px 10px 0 0 var(--sf-cyan);
    border-color: var(--sf-cyan);
}

.sf-portfolio-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
    border-bottom: var(--sf-line) solid var(--sf-ink-line);
}

.sf-portfolio-meta {
    padding: 20px 22px;
}

.sf-portfolio-tag {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sf-cyan);
    margin-bottom: 6px;
    display: block;
}

.sf-portfolio-title {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 17px;
    color: var(--sf-ink);
    line-height: 1.3;
    margin-bottom: 6px;
}

.sf-portfolio-area {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 12px;
    color: var(--sf-ink-soft);
    letter-spacing: 0.06em;
}

.sf-text-mute {
    color: var(--sf-ink-soft);
}

.sf-text-dark {
    color: var(--sf-ink);
}

.sf-text-cyan {
    color: var(--sf-cyan);
}

.sf-strong {
    font-weight: 700;
    color: var(--sf-ink);
}

.sf-content-block p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--sf-ink);
    margin-bottom: 18px;
}

.sf-content-block p:last-child {
    margin-bottom: 0;
}

.sf-content-block h2 {
    margin-top: 48px;
    margin-bottom: 18px;
}

.sf-content-block h3 {
    margin-top: 32px;
    margin-bottom: 14px;
}

.sf-content-block ul {
    margin: 0 0 24px 0;
    padding: 0;
    list-style: none;
}

.sf-content-block ul li {
    padding: 8px 0 8px 22px;
    border-bottom: 1px solid var(--sf-ink-line);
    position: relative;
    color: var(--sf-ink);
}

.sf-content-block ul li::before {
    content: "▸";
    color: var(--sf-cyan);
    position: absolute;
    left: 0;
    top: 8px;
}

.sf-legal-table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0;
}

.sf-legal-table th,
.sf-legal-table td {
    border: var(--sf-line) solid var(--sf-ink-line);
    padding: 12px 14px;
    text-align: left;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 13px;
    color: var(--sf-ink);
    vertical-align: top;
}

.sf-legal-table th {
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 11px;
}

.sf-callout {
    border-left: 4px solid var(--sf-cyan);
    background: rgba(0, 229, 255, 0.06);
    padding: 18px 22px;
    margin: 24px 0;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    color: var(--sf-ink);
    line-height: 1.7;
}

.sf-morph-overlay {
    position: fixed;
    inset: 0;
    background: var(--sf-cyan);
    z-index: 80;
    pointer-events: none;
    opacity: 0;
    clip-path: inset(50% 25% 50% 25%);
    transition: clip-path 0.5s cubic-bezier(0.65, 0, 0.35, 1), opacity 0.3s;
}

.sf-morph-overlay.is-active {
    opacity: 0.85;
    clip-path: inset(0 0 0 0);
}

.sf-back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: var(--sf-cyan);
    color: var(--sf-text-dark);
    border: var(--sf-line) solid var(--sf-ink-line);
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 14px;
    z-index: 70;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.2s, transform 0.2s, background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sf-back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.sf-back-to-top:hover {
    background: var(--sf-graphite);
    color: var(--sf-cyan);
    border-color: var(--sf-cyan);
}

.sf-hide-on-mobile {
    display: block;
}

.sf-show-on-mobile {
    display: none;
}

@media (max-width: 1199.98px) {
    .sf-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .sf-flex-grow { grid-template-columns: repeat(2, 1fr); }
    .sf-grid-asym { grid-template-columns: 1fr 1fr; }
    .sf-grid-asym > *:nth-child(3) { grid-column: 1 / -1; }
    .sf-contact-split { grid-template-columns: 1fr; }
    .sf-contact-left { position: relative; top: 0; }
    .sf-footer-grid { grid-template-columns: 1fr 1fr; }
    .sf-portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991.98px) {
    .sf-process-card { margin-left: -40px; }
}

@media (max-width: 767.98px) {
    .sf-container { padding: 0 18px; }
    .sf-header { height: 56px; }
    .sf-nav { display: none; }
    .sf-burger { display: flex; }
    .sf-brand-site { display: none; }
    .sf-brand-domain { font-size: 14px; }
    .sf-brand-diamond { width: 24px; height: 24px; }
    .sf-brand-diamond::before { width: 14px; }
    .sf-brand-diamond::after { height: 14px; }
    .sf-hide-on-mobile { display: none; }
    .sf-show-on-mobile { display: block; }
    .sf-kenetic-line { animation-duration: 200s; opacity: 0.025; }
    .sf-grid-3, .sf-grid-4, .sf-grid-2 { grid-template-columns: 1fr; }
    .sf-flex-grow { grid-template-columns: 1fr; }
    .sf-flex-grow-card:hover { flex-grow: 1; }
    .sf-grid-asym { grid-template-columns: 1fr; }
    .sf-grid-asym > *:nth-child(3) { grid-column: auto; }
    .sf-hero-stats { grid-template-columns: 1fr; gap: 10px; }
    .sf-team-row { grid-template-columns: 44px 1fr 32px; gap: 12px; }
    .sf-team-row-role { display: none; }
    .sf-team-portrait { display: none; }
    .sf-form-grid { grid-template-columns: 1fr; }
    .sf-drag-canvas { height: 360px; }
    .sf-drag-card { width: 240px; height: 200px; }
    .sf-footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .sf-cookie-banner { left: 12px; right: 12px; bottom: 12px; max-width: none; }
    .sf-process-strip { padding: 20px 18px 24px; }
    .sf-process-card { flex-basis: 240px; height: auto; min-height: 280px; }
    .sf-reviews-wrap { padding: 0 12px; }
    .sf-review-card { flex: 0 0 280px; }
    .sf-portfolio-grid { grid-template-columns: 1fr; }
    .sf-portfolio-img { height: 200px; }
    .sf-cta-band { padding: 36px 18px; }
    .sf-tab { padding: 10px 14px; font-size: 12px; }
    .sf-morph-overlay { display: none; }
    .sf-section { padding: 64px 0; }
}

@media (max-width: 380px) {
    .sf-hero-title { font-size: 38px; }
    .sf-h2 { font-size: 28px; }
}

.sf-rb-img { border: var(--sf-line) solid var(--sf-ink-line); background: var(--sf-graphite); position: relative; overflow: hidden; }
.sf-rb-img::after { content: ""; position: absolute; inset: 0; background: rgba(17,17,17,0.18); pointer-events: none; }

.sf-fade-in-element {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease-out, transform 0.35s ease-out;
}

.sf-fade-in-element.is-in {
    opacity: 1;
    transform: translateY(0);
}

.sf-link-underline {
    border-bottom: 2px solid var(--sf-cyan);
    padding-bottom: 1px;
}

.sf-call-card {
    border: var(--sf-line) solid var(--sf-ink-line);
    background: var(--sf-bg-card);
    padding: 24px;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
}

.sf-call-card:hover {
    border-color: var(--sf-cyan);
    transform: translateY(-3px);
    box-shadow: 6px 6px 0 0 var(--sf-cyan);
}

.sf-call-card .sf-icon {
    margin-bottom: 0;
}

.sf-dotted-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sf-dotted-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--sf-ink-line);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 14px;
    color: var(--sf-ink);
}

.sf-dotted-list li:last-child {
    border-bottom: 0;
}

.sf-dotted-list strong {
    color: var(--sf-ink);
    font-weight: 700;
}