/* ============================================
   有限会社アルファ - Corporate Design System
   Premium Design inspired by daiich.jp / ai-do / densetsuko / watuco
   ============================================ */

/* ---------- Variables ---------- */
:root {
    --blue: #0a3d7c;
    --blue-dark: #062a55;
    --blue-light: #1a5fad;
    --blue-accent: #2878c8;
    --gold: #c8a85c;
    --gold-light: #d4b978;
    --navy: #0a1628;
    --white: #ffffff;
    --off-white: #f5f7fa;
    --gray-50: #f8f9fb;
    --gray-100: #eef1f5;
    --gray-200: #dce1e8;
    --gray-300: #bfc6d0;
    --gray-600: #6b7a8d;
    --text: #1a2436;
    --text-light: #4a5568;
    --text-muted: #8896a6;
    --font: 'Noto Sans JP', sans-serif;
    --font-en: 'Inter', sans-serif;
    --radius: 6px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(10, 22, 40, 0.07);
    --shadow-hover: 0 12px 40px rgba(10, 22, 40, 0.12);
    --shadow-card: 0 2px 16px rgba(10, 22, 40, 0.06);
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 120px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font);
    background: var(--white);
    color: var(--text);
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

/* ---------- Utilities ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.pc-only {
    display: inline;
}

.sp-only {
    display: none;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-en {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: 6px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 10px;
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--text);
    letter-spacing: 2px;
}

.section-line {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--blue-accent));
    margin: 16px auto 20px;
    border-radius: 2px;
}

.section-desc {
    font-size: 0.925rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 14px 36px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.btn:hover::after {
    transform: translateX(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue), var(--blue-accent));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(10, 61, 124, 0.35);
}

.btn-primary:hover {
    box-shadow: 0 6px 24px rgba(10, 61, 124, 0.5);
    transform: translateY(-2px);
}

.btn-white {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
}

.btn-white:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
}

.btn-lg {
    padding: 16px 48px;
    font-size: 1rem;
}

/* ---------- Header ---------- */
.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all var(--transition);
}

.header-top {
    background: var(--navy);
    padding: 4px 0;
    font-size: 0.78rem;
}

.header-top-inner {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.header-contact-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-phone svg {
    stroke: var(--gold-light);
}

.header-phone a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-family: var(--font-en);
}

.header-phone a:hover {
    color: var(--gold-light);
}

.header-hours {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.72rem;
}

.header-main {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: all var(--transition);
}

.header-main.scrolled {
    padding: 6px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.header-main-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
}




/* Nav */
.nav-list {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    padding: 10px 18px;
    position: relative;
    transition: color var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: all var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover {
    color: var(--blue);
}

.nav-link:hover::after {
    width: 60%;
}

.nav-contact {
    background: linear-gradient(135deg, var(--blue), var(--blue-accent));
    color: var(--white) !important;
    border-radius: var(--radius);
    margin-left: 8px;
    padding: 10px 24px !important;
}

.nav-contact::after {
    display: none;
}

.nav-contact:hover {
    color: var(--white) !important;
    box-shadow: 0 4px 16px rgba(10, 61, 124, 0.35);
    transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    position: absolute;
    left: 0;
    transition: all var(--transition);
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger span:nth-child(3) {
    bottom: 0;
}

.hamburger.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Nav Overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 998;
    backdrop-filter: blur(4px);
}

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

/* ---------- Hero ---------- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 1000px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
    animation: heroZoom 8s ease-out forwards;
}

@keyframes heroZoom {
    from {
        transform: scale(1.08);
    }

    to {
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(6, 42, 85, 0.82) 0%,
            rgba(10, 61, 124, 0.7) 40%,
            rgba(40, 120, 200, 0.55) 100%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}

.hero-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float-up linear infinite;
}

@keyframes float-up {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-10vh) scale(1);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    padding-top: var(--header-height);
}

.hero-content .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-en {
    font-family: var(--font-en);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--gold-light);
    margin-bottom: 16px;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.5;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero-accent {
    display: inline-block;
    position: relative;
    color: var(--gold-light);
}

.hero-accent::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gold-light);
    opacity: 0.5;
}

.hero-sub {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 36px;
    font-weight: 400;
}

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

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.hero-scroll span {
    font-family: var(--font-en);
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.6);
}

.hero-scroll-bar {
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.hero-scroll-bar::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    animation: scrollBar 2s infinite;
}

@keyframes scrollBar {
    0% {
        top: -100%;
    }

    100% {
        top: 100%;
    }
}

/* Hero Animations */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.3s;
}

.delay-2 {
    animation-delay: 0.6s;
}

.delay-3 {
    animation-delay: 0.9s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Service Nav Bar ---------- */
.service-nav {
    background: linear-gradient(135deg, var(--blue), var(--blue-dark));
    padding: 0;
    position: relative;
    z-index: 10;
}

.service-nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.service-nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 28px 32px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    font-weight: 600;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition);
    position: relative;
}

.service-nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gold-light);
    transition: width 0.4s ease;
}

.service-nav-item:hover::after {
    width: 100%;
}

.service-nav-item:last-child {
    border-right: none;
}

.service-nav-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
}

.service-nav-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.service-nav-icon svg {
    width: 100%;
    height: 100%;
}

/* ---------- Message Section ---------- */
.message-section {
    padding: 100px 0;
    background: var(--off-white);
}

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

.message-heading {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 900;
    line-height: 1.7;
    color: var(--text);
    margin-bottom: 24px;
}

.message-heading-border {
    display: inline;
    background: linear-gradient(transparent 60%, rgba(10, 61, 124, 0.1) 60%);
    padding-bottom: 2px;
}

.message-body {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 2;
}

.message-image {
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.message-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.message-image:hover img {
    transform: scale(1.03);
}

/* ---------- Service Section ---------- */
.service-blocks {
    display: flex;
    flex-direction: column;
}

.service-block {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.service-block-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
}

.service-block:hover .service-block-image {
    transform: scale(1.04);
}

.service-block-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(6, 42, 85, 0.78), rgba(10, 61, 124, 0.65));
    transition: background var(--transition);
}

.service-block:hover .service-block-overlay {
    background: linear-gradient(135deg, rgba(6, 42, 85, 0.85), rgba(10, 61, 124, 0.72));
}

.service-block-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    padding: 60px 32px;
    color: var(--white);
    width: 100%;
}

.service-block-num {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 800;
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: 4px;
}

.service-block-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.service-block-icon svg {
    width: 100%;
    height: 100%;
}

.service-block-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.service-block-text {
    font-size: 0.9rem;
    line-height: 1.9;
    max-width: 600px;
    opacity: 0.9;
}

/* ---------- Strengths Section ---------- */
.strengths {
    background: var(--off-white);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.strength-card {
    background: var(--white);
    padding: 48px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.strength-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--blue), var(--blue-accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.strength-card:hover::before {
    transform: scaleX(1);
}

.strength-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.strength-num {
    font-family: var(--font-en);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--blue);
    opacity: 0.12;
    line-height: 1;
    margin-bottom: 8px;
}

.strength-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    color: var(--blue);
}

.strength-icon svg {
    width: 100%;
    height: 100%;
}

.strength-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
}

.strength-text {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.8;
}

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

.work-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all var(--transition);
}

.work-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
}

.work-card-img {
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.work-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.work-card:hover .work-card-img img {
    transform: scale(1.06);
}

.work-card-body {
    padding: 24px;
}

.work-card-cat {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--blue);
    background: rgba(10, 61, 124, 0.08);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.work-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.work-card-body p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* ---------- Numbers Section ---------- */
.numbers-section {
    background: linear-gradient(135deg, var(--blue), var(--blue-dark));
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.numbers-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.number-item {
    text-align: center;
    color: var(--white);
    padding: 24px;
}

.number-value {
    font-family: var(--font-en);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--gold-light);
    line-height: 1;
}

.number-unit {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-left: 4px;
}

.number-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
    letter-spacing: 2px;
}

/* ---------- About Section ---------- */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.about-greeting-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
}

.about-greeting-line {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--blue-accent));
    margin-bottom: 24px;
}

.about-greeting p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 16px;
}

.about-greeting p:last-child {
    margin-bottom: 0;
}

.about-table-wrap {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    width: 100%;
}


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

.about-table th,
.about-table td {
    padding: 16px 24px;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--gray-100);
    text-align: left;
    vertical-align: top;
}

.about-table tr:last-child th,
.about-table tr:last-child td {
    border-bottom: none;
}

.about-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--text);
    width: 140px;
    white-space: nowrap;
}

.about-table td {
    color: var(--text-light);
}

.about-table td a {
    color: var(--blue);
    font-weight: 500;
}

.about-table td a:hover {
    color: var(--blue-accent);
}

/* ---------- News Section ---------- */
.news {
    background: var(--off-white);
}

.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition);
    border-radius: var(--radius);
}

.news-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-card);
    transform: translateX(4px);
}

.news-date {
    font-family: var(--font-en);
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    flex-shrink: 0;
    letter-spacing: 1px;
}

.news-tag {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--white);
    background: var(--blue);
    padding: 3px 12px;
    border-radius: 3px;
    flex-shrink: 0;
    letter-spacing: 1px;
}

.news-tag.tag-recruit {
    background: var(--gold);
}

.news-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
}

/* ---------- Contact Section ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 32px;
    margin-bottom: 48px;
}

.contact-phone-card {
    background: linear-gradient(135deg, var(--blue), var(--blue-dark));
    padding: 48px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.contact-phone-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-phone-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--gold-light);
}

.contact-phone-label {
    font-size: 0.85rem;
    margin-bottom: 8px;
    opacity: 0.8;
}

.contact-phone-num {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
    margin-bottom: 8px;
    display: block;
}

.contact-phone-num:hover {
    color: var(--gold-light);
}

.contact-phone-hours {
    font-size: 0.78rem;
    opacity: 0.6;
}

.contact-form-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
}

.contact-form-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
}

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

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.req {
    color: #e74c3c;
    font-size: 0.7rem;
    font-weight: 700;
    margin-left: 4px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.88rem;
    color: var(--text);
    background: var(--gray-50);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(10, 61, 124, 0.1);
    background: var(--white);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #e74c3c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    text-align: center;
    margin-top: 8px;
}

/* Contact Map */
.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-map iframe {
    display: block;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
}

.footer-main {
    padding: 60px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
}

.logo-footer {
    display: inline-flex;
    align-items: center;
    background: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius);
}

.footer-info {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-info p {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-info svg {
    flex-shrink: 0;
    stroke: var(--gold-light);
    opacity: 0.6;
}

.footer-info a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-info a:hover {
    color: var(--gold-light);
}

.footer-links h4,
.footer-services h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.footer-links ul,
.footer-services ul {
    list-style: none;
}

.footer-links li,
.footer-services li {
    margin-bottom: 10px;
}

.footer-links a,
.footer-services a {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.55);
    transition: all var(--transition);
    position: relative;
    padding-left: 12px;
}

.footer-links a::before,
.footer-services a::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--gold-light);
    opacity: 0.5;
    transition: all var(--transition);
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--gold-light);
    padding-left: 16px;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 1px;
}

/* ---------- Back to Top ---------- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--blue), var(--blue-accent));
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(10, 61, 124, 0.35);
    z-index: 900;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(10, 61, 124, 0.5);
}

/* ---------- Scroll Reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .about-content {
        gap: 32px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 80px;
    }

    .pc-only {
        display: none;
    }

    .sp-only {
        display: inline;
    }

    .section {
        padding: 70px 0;
    }

    /* Header */
    .header-top {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--white);
        padding: 100px 32px 32px;
        z-index: 999;
        transition: right var(--transition);
        box-shadow: -4px 0 30px rgba(0, 0, 0, 0.15);
    }

    .nav.open {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav-link {
        padding: 16px 0;
        border-bottom: 1px solid var(--gray-100);
        font-size: 0.95rem;
    }

    .nav-link::after {
        display: none;
    }

    .nav-contact {
        margin-left: 0;
        margin-top: 16px;
        text-align: center;
    }

    /* Hero */
    .hero {
        min-height: 500px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    /* Service Nav */
    .service-nav-grid {
        grid-template-columns: 1fr;
    }

    .service-nav-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 24px;
    }

    /* Message */
    .message-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .message-section {
        padding: 70px 0;
    }

    /* Service Blocks */
    .service-block {
        min-height: 300px;
    }

    /* Strengths */
    .strengths-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    /* Works */
    .works-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Numbers */
    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .number-value {
        font-size: 2.5rem;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-card {
        padding: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* News */
    .news-item {
        flex-wrap: wrap;
        gap: 8px;
        padding: 16px;
    }

    .news-title {
        width: 100%;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-brand {
        grid-column: auto;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-sub {
        font-size: 0.9rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        text-align: center;
        justify-content: center;
    }

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

    .number-value {
        font-size: 2rem;
    }
}