/* ===== CSS Variables ===== */
:root {
    --color-bg: #ffffff;
    --color-bg-dark: #0a0a0b;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-text-white: #fafafa;
    --color-accent: #10b981;
    --color-accent-light: #34d399;
    --color-accent-dark: #059669;
    --color-border: #e5e5e5;
    --color-border-dark: #27272a;
    --font-display: 'Sora', sans-serif;
    --font-body: 'Sora', sans-serif;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 80px;
    --container-width: 1200px;
    /* Hero typography - relative sizing */
    --hero-base: 7vw;
    --hero-title-size: clamp(46px, var(--hero-base), 72px);
    --hero-subtitle-size: clamp(15px, calc(var(--hero-base) * 0.28), 20px);
}

/* ===== Reset & Base Styles ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

/* ===== Mobile Typography ===== */
@media (max-width: 900px) {
    /* 本文テキストの行間 */
    body {
        line-height: 1.8;
    }

    /* 本文段落のスタイル */
    p {
        line-height: 1.8;
        margin-bottom: 1em;
    }

    /* 連続する段落の最後は余白なし */
    p:last-child {
        margin-bottom: 0;
    }

    /* セクションタイトルと本文の間隔 */
    .section-header {
        margin-bottom: 20px;
    }

    /* 本文テキスト共通 */
    .about-text p,
    .founder-bio,
    .channel-description {
        line-height: 1.8;
        font-size: 14px;
    }
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: transparent;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition-base);
}

/* スクロール後は白背景に */
.header.scrolled {
    border-bottom-color: var(--color-border);
}

.header.scrolled::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: -1;
}

.header-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 768px) {
    .header-content {
        padding: 20px 24px;
    }
}

.logo {
    display: flex;
    align-items: center;
    z-index: 1001;
    margin-left: -24px;
}

@media (min-width: 768px) {
    .logo {
        margin-left: -40px;
    }
}

/* ヒーロー上では白いロゴ */
.logo-img {
    height: 19px;
    width: auto;
    display: block;
    transition: var(--transition-base);
}

@media (min-width: 768px) {
    .logo-img {
        height: 19px;
    }
}

/* スクロール後のロゴはJSで切り替え */

.logo:hover .logo-img {
    opacity: 0.8;
}

/* ナビゲーション */
.nav {
    display: flex;
    align-items: center;
    gap: 48px;
}

.nav-list {
    display: flex;
    gap: 20px;
}

/* ヒーロー上では白い文字 */
.nav-list a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    transition: var(--transition-base);
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition-base);
}

.nav-list a:hover {
    color: #ffffff;
}

.nav-list a:hover::after {
    width: 100%;
}

/* スクロール後は黒い文字に */
.header.scrolled .nav-list a {
    color: var(--color-text-light);
}

.header.scrolled .nav-list a:hover {
    color: var(--color-text);
}

/* 言語切り替え */
.nav-lang {
    display: flex;
    gap: 8px;
    font-size: 12px;
    letter-spacing: 0.05em;
    align-items: center;
}

.nav-lang a {
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition-base);
}

.nav-lang a.active {
    color: #ffffff;
}

.nav-lang a:hover {
    color: #ffffff;
}

/* More ドロップダウン */
.nav-lang-more {
    position: relative;
}

.nav-lang-more-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.6);
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-lang-more-btn:hover {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.6);
}

.nav-lang-more-btn svg {
    width: 10px;
    height: 10px;
    transition: var(--transition-base);
}

.nav-lang-more.open .nav-lang-more-btn svg {
    transform: rotate(180deg);
}

.nav-lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-base);
    z-index: 100;
}

.nav-lang-more.open .nav-lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-lang-dropdown a,
.nav-lang-dropdown a.active {
    display: block;
    padding: 10px 16px;
    color: var(--color-text);
    font-size: 13px;
    transition: var(--transition-base);
}

.nav-lang-dropdown a:hover {
    background: #f5f5f5;
    color: var(--color-accent);
}

.nav-lang-dropdown a:first-child {
    border-radius: 8px 8px 0 0;
}

.nav-lang-dropdown a:last-child {
    border-radius: 0 0 8px 8px;
}

/* スクロール後の言語切り替え */
.header.scrolled .nav-lang a {
    color: var(--color-text-muted);
}

.header.scrolled .nav-lang a.active,
.header.scrolled .nav-lang a:hover {
    color: var(--color-text);
}

.header.scrolled .nav-lang-more-btn {
    color: var(--color-text-muted);
    border-color: var(--color-border);
}

.header.scrolled .nav-lang-more-btn:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 1px;
    background-color: #ffffff;
    transition: var(--transition-base);
}

.header.scrolled .hamburger span {
    background-color: var(--color-text);
}

.hamburger.active span {
    background-color: var(--color-text);
}

.hamburger.active span:first-child {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:last-child {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 1024px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        z-index: 1;
    }

    .nav.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }

    .nav-list a {
        font-size: 20px;
        color: var(--color-text);
        text-transform: none;
    }

    .nav-list a::after {
        display: none;
    }

    .nav-lang a {
        color: var(--color-text-muted);
    }

    .nav-lang a.active,
    .nav-lang a:hover {
        color: var(--color-text);
    }

    .nav-lang-more-btn {
        color: var(--color-text-muted);
        border-color: var(--color-border);
    }

    .nav-lang-more-btn:hover {
        color: var(--color-text);
    }
}

/* ===== Hero Section (Aパターンと同じダーク) ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg-dark);
    padding-top: 80px;
}

/* グリッド背景 */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(16, 185, 129, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 185, 129, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* グロー効果 */
.hero::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* フローティング装飾要素 */
.hero-decorations {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-decoration {
    position: absolute;
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-decoration:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.hero-decoration:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 60%;
    right: -3%;
    animation-delay: -5s;
}

.hero-decoration:nth-child(3) {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 10%;
    animation-delay: -10s;
}

.hero-decoration:nth-child(4) {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 15%;
    animation-delay: -15s;
    border-radius: 0;
    transform: rotate(45deg);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-10px) rotate(-3deg);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-30px) rotate(2deg);
        opacity: 0.6;
    }
}

/* パーティクル */
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(16, 185, 129, 0.6);
    border-radius: 50%;
    animation: particleFloat 15s linear infinite;
}

.hero-particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.hero-particle:nth-child(2) { left: 20%; top: 80%; animation-delay: -2s; }
.hero-particle:nth-child(3) { left: 35%; top: 40%; animation-delay: -4s; }
.hero-particle:nth-child(4) { left: 50%; top: 60%; animation-delay: -6s; }
.hero-particle:nth-child(5) { left: 65%; top: 30%; animation-delay: -8s; }
.hero-particle:nth-child(6) { left: 80%; top: 70%; animation-delay: -10s; }
.hero-particle:nth-child(7) { left: 90%; top: 50%; animation-delay: -12s; }
.hero-particle:nth-child(8) { left: 45%; top: 15%; animation-delay: -14s; }

@keyframes particleFloat {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(0.5);
        opacity: 0;
    }
}

.hero .container {
    position: relative;
    z-index: 10;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: var(--hero-subtitle-size);
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
    white-space: nowrap;
}

.hero-title {
    font-size: var(--hero-title-size);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text-white);
    margin-bottom: 32px;
}

.hero-title .no-wrap {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.hero-description {
    font-size: clamp(14px, 2vw, 18px);
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.hero-description .sp-none {
    display: inline;
}

@media (max-width: 768px) {
    .hero-description .sp-none {
        display: none;
    }
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    z-index: 10;
}

.scroll-indicator::after {
    content: '';
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(0.5);
        transform-origin: top;
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* ===== Section Common (白背景) ===== */
.section {
    padding: 120px 0;
    background-color: var(--color-bg);
}

.section:nth-child(even) {
    background-color: #fafafa;
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0;
    }
}

.section-header {
    margin-bottom: 48px;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.section-title-center {
    text-align: center;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* About Section - Vertical Layout */
.about-content-vertical {
    display: flex;
    flex-direction: column;
    gap: 64px;
}

.about-content-vertical .about-text {
    max-width: 100%;
    text-align: left;
}

.about-content-vertical .about-text p {
    text-align: left;
}

.about-content-vertical .section-header {
    text-align: left;
}

/* About Stats - Horizontal Layout */
.about-stats-horizontal {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 768px) {
    .about-stats-horizontal {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

.stat-item-horizontal {
    text-align: center;
    padding: 32px 20px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: var(--transition-base);
}

.stat-item-horizontal:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.about-lead {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.8;
    color: var(--color-accent);
    margin-bottom: 24px;
}

/* Founder Section */
.founder-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    align-items: center;
}

@media (max-width: 900px) {
    .founder-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.founder-image-wrapper {
    position: relative;
}

.founder-text {
}

/* Mobile: hide PC elements, show mobile elements */
.founder-header-mobile {
    display: none;
}

@media (max-width: 900px) {
    .founder-header-mobile {
        display: block;
        margin-bottom: 32px;
    }

    .founder-header-mobile .section-header {
        margin-bottom: 28px;
        text-align: center;
    }

    .founder-image-wrapper-mobile {
        position: relative;
        width: 240px;
        max-width: 70%;
        margin: 0 auto 40px;
    }
    
    .founder-image-frame-mobile {
        position: relative;
        z-index: 2;
        border-radius: 16px;
        overflow: hidden;
    }
    
    .founder-avatar {
        display: block;
        width: 100%;
        height: auto;
        aspect-ratio: 1;
        object-fit: cover;
        object-position: top;
    }
    
    .founder-image-accent-mobile {
        position: absolute;
        top: 16px;
        left: 16px;
        right: -16px;
        bottom: -16px;
        border: 2px solid var(--color-accent);
        border-radius: 16px;
        z-index: 1;
    }

    .founder-image-wrapper {
        display: none;
    }

    .founder-header-pc {
        display: none;
    }

    .founder-bio {
        font-size: 15px;
        line-height: 2;
        color: var(--color-text-light);
    }
}


.founder-image-frame {
    position: relative;
    z-index: 2;
    border-radius: 16px;
    overflow: hidden;
}

.founder-image {
    width: 100%;
    display: block;
}

.founder-image-accent {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--color-accent);
    border-radius: 16px;
    z-index: 1;
}

.founder-text {
    padding-top: 8px;
}

.founder-text p {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text-light);
}

.about-text p {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text-light);
}

/* About画像 */
.about-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    object-fit: cover;
    filter: blur(0.5px);
}

/* About Stats */

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.stat-item {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 20px 20px;
    text-align: center;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #4b5563;
    margin-bottom: 6px;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    background-color: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 40px;
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.feature-number {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-accent);
}

.feature-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.feature-description {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* ===== Channels Section ===== */
.channels-grid {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.channel-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.channel-card-reverse {
    direction: rtl;
}

.channel-card-reverse > * {
    direction: ltr;
}

@media (max-width: 1024px) {
    .channel-card,
    .channel-card-reverse {
        grid-template-columns: 1fr;
        gap: 0;
        direction: ltr;
        background: #ffffff;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .channel-card .channel-image,
    .channel-card-reverse .channel-image {
        width: 100%;
    }

    .channel-card .channel-thumb,
    .channel-card-reverse .channel-thumb {
        border-radius: 0;
        box-shadow: none;
        max-width: 100%;
    }

    .channel-card .channel-content,
    .channel-card-reverse .channel-content {
        padding: 24px;
    }
}

.channel-image {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.channel-icon {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
}

.channel-thumb {
    width: 100%;
    max-width: 500px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    transition: var(--transition-base);
}

.channel-thumb:hover {
    transform: scale(1.02);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .channel-icon {
        width: 150px;
        height: 150px;
    }
}

.placeholder-image {
    width: 100%;
    padding-bottom: 66.67%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    border-radius: 16px;
    position: relative;
}

.channel-content {
    padding: 20px 0;
}

.channel-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(16, 185, 129, 0.1);
    padding: 6px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.channel-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-text);
}

.channel-description {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 24px;
    color: var(--color-text-light);
}

/* ===== Tech Stack Section ===== */
.tech-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.tech-logo {
    width: 120px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-logo-placeholder {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-align: center;
    padding: 16px 24px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Results Section ===== */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
}

.result-card {
    background-color: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-base);
}

/* Solutions用カード - 上部横線アクセント */
.solution-card {
    position: relative;
    padding: 40px;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-accent);
}

.solution-card .result-content {
    padding: 0;
}

/* Research用カード - 装飾なし */
.research-card {
    padding: 40px;
}

.research-card .result-content {
    padding: 0;
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.result-image .placeholder-image {
    padding-bottom: 56.25%;
    border-radius: 0;
}

.result-content {
    padding: 24px;
}

.result-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}

.result-description {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* ===== Company Info Section ===== */
.company-content {
    max-width: 800px;
    margin: 0 auto;
}

.company-table {
    width: 100%;
    border-collapse: collapse;
}

.company-table tr {
    border-bottom: 1px solid var(--color-border);
}

.company-table th,
.company-table td {
    padding: 20px;
    text-align: left;
    vertical-align: top;
}

.company-table th {
    font-weight: 600;
    color: var(--color-text);
    width: 30%;
    background-color: #fafafa;
}

.company-table td {
    color: var(--color-text-light);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .company-table th,
    .company-table td {
        display: block;
        width: 100%;
        padding: 15px;
    }

    .company-table th {
        background-color: transparent;
        padding-bottom: 5px;
    }

    .company-table td {
        padding-top: 5px;
        padding-bottom: 20px;
    }
}

/* ===== Contact Section ===== */
.contact {
    background-color: #fafafa !important;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-description {
    font-size: 15px;
    line-height: 2;
    margin-bottom: 32px;
    color: var(--color-text-light);
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.contact-item {
    font-size: 15px;
    color: var(--color-text);
}

.contact-item svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-icon {
    width: 16px;
    height: 16px;
    transition: var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.btn-primary {
    background-color: var(--color-accent);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.btn-outline:hover {
    background-color: var(--color-accent);
    color: #ffffff;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-white);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

.footer-text {
    font-size: 13px;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 13px;
    opacity: 0.7;
    transition: var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

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

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }

/* ===== Grid Background ===== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(16, 185, 129, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 185, 129, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* ===== Services Section (案B-4: カード横長1列) ===== */
.services-b4 {
    background: var(--color-bg);
}
.services-b4-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}
.services-b4-item {
    display: flex;
    gap: 32px;
    padding: 32px;
    background: #f9fafb;
    border-radius: 16px;
    align-items: center;
}
.services-b4-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    background: white;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.services-b4-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}
.services-b4-content p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}
@media (max-width: 768px) {
    .services-b4-item {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

/* ===== Cursor Glow ===== */
@media (hover: hover) {
    .cursor-glow {
        position: fixed;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
        pointer-events: none;
        z-index: 9999;
        transform: translate(-50%, -50%);
        transition: opacity 0.3s;
    }
}

@media (hover: none) {
    .cursor-glow {
        display: none;
    }
}