/*
Theme Name: 迷惑メールAIフィルター
Theme URI: https://ai-spam-filter.example.com
Description: 迷惑メールAIフィルターサービスの公式サイト用WordPressテーマ
Author: 有限会社アゼット
Author URI: https://ai-spam-filter.example.com
Version: 1.0.0
Text Domain: ai-spam-filter
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/

/* =============================================
   CSS Variables
   ============================================= */
:root {
    /* Colors */
    --color-main: #1a56db;
    --color-main-dark: #1544b0;
    --color-main-light: #e8eefb;
    --color-accent: #0d9488;
    --color-accent-dark: #0a766c;
    --color-accent-light: #e6f7f5;
    --color-cta-gradient: linear-gradient(135deg, #f59e0b, #ea580c);
    --color-cta-gradient-hover: linear-gradient(135deg, #d97706, #dc2626);
    --color-bg: #f8fafc;
    --color-bg-white: #ffffff;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-lighter: #94a3b8;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;

    /* Typography */
    --font-family: 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --header-height: 72px;
    --banner-height: 40px;
    --header-total: calc(var(--header-height) + var(--banner-height));

    /* Design tokens */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: var(--header-total);
}

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

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

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

a:hover {
    color: var(--color-main-dark);
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-md);
}

input,
textarea,
select,
button {
    font-family: inherit;
    font-size: inherit;
}

/* =============================================
   Container
   ============================================= */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* =============================================
   Header
   ============================================= */
/* Sample banner */
.sample-banner {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 999;
    height: var(--banner-height);
    background: var(--color-danger);
    color: #fff;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: transparent;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-main);
    text-decoration: none;
    flex-shrink: 0;
}

.site-logo:hover {
    color: var(--color-main-dark);
}

.site-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-cta-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--font-size-lg);
}

.site-logo img {
    max-height: 36px;
    width: auto;
}

/* Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-nav .nav-list {
    display: flex;
    align-items: center;
    gap: 0;
}

.header-nav .nav-list li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.header-nav .nav-list li a:hover {
    color: var(--color-main);
    background: var(--color-main-light);
}

.header-cta {
    margin-left: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-login-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.header-login-link:hover {
    color: var(--color-main);
}

/* Hamburger menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
    position: relative;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
    position: absolute;
}

.hamburger span:nth-child(1) {
    transform: translateY(-7px);
}

.hamburger span:nth-child(3) {
    transform: translateY(7px);
}

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

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

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

/* Mobile menu overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--color-bg-white);
    z-index: 1000;
    padding: calc(var(--header-total) + var(--spacing-xl)) var(--spacing-xl) var(--spacing-xl);
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav .nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mobile-nav .nav-list li a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.mobile-nav .nav-list li a:hover {
    color: var(--color-main);
    background: var(--color-main-light);
}

.mobile-nav .mobile-cta {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav .mobile-cta .btn {
    width: 100%;
    text-align: center;
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-4xl) 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--spacing-3xl);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.footer-col h4 {
    color: #fff;
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
}

.footer-company-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #fff;
    margin-bottom: var(--spacing-md);
}

.footer-company-info {
    font-size: var(--font-size-sm);
    line-height: 2;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.footer-col ul li a::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.footer-col ul li a:hover {
    color: #fff;
    transform: translateX(4px);
}

.footer-bottom {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.75rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-main);
    color: #fff;
    box-shadow: 0 2px 4px rgba(26, 86, 219, 0.3);
}

.btn-primary:hover {
    background: var(--color-main-dark);
    color: #fff;
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-bg-white);
    color: var(--color-main);
    border: 2px solid var(--color-main);
}

.btn-secondary:hover {
    background: var(--color-main);
    color: #fff;
    transform: translateY(-1px);
}

.btn-cta {
    background: var(--color-cta-gradient);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(234, 88, 12, 0.35);
    position: relative;
    overflow: hidden;
}

.btn-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-cta:hover {
    color: #fff;
    box-shadow: 0 6px 20px rgba(234, 88, 12, 0.45);
    transform: translateY(-2px);
}

.btn-cta:hover::before {
    left: 100%;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: var(--font-size-base);
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
}

/* =============================================
   Sections
   ============================================= */
.section {
    padding: var(--spacing-4xl) 0;
}

.section-white {
    background: var(--color-bg-white);
}

.section-gray {
    background: var(--color-bg);
}

.section-dark {
    background: var(--color-text);
    color: #fff;
}

.section-dark .section-title,
.section-dark .section-subtitle {
    color: #fff;
}

.section-dark .section-subtitle {
    opacity: 0.7;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-main);
    background: var(--color-main-light);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

/* =============================================
   Cards
   ============================================= */
.card {
    background: var(--color-bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    transition: var(--transition);
    border: 1px solid var(--color-border-light);
}

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

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--color-main-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-2xl);
    color: var(--color-main);
}

.card-icon img {
    width: 48px;
    height: 48px;
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.8;
}

/* =============================================
   Grid System
   ============================================= */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

/* =============================================
   Badges (お知らせカテゴリ)
   ============================================= */
.badge {
    display: inline-block;
    padding: 0.2rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    letter-spacing: 0.03em;
    line-height: 1.5;
}

.badge-announcement {
    background: var(--color-main-light);
    color: var(--color-main);
}

.badge-incident {
    background: #fef2f2;
    color: #dc2626;
}

.badge-update {
    background: #f0fdf4;
    color: #16a34a;
}

.badge-media {
    background: #faf5ff;
    color: #9333ea;
}

.badge-default {
    background: var(--color-bg);
    color: var(--color-text-light);
}

/* =============================================
   Pricing Table
   ============================================= */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: var(--spacing-2xl);
    text-align: center;
    position: relative;
    border: 2px solid var(--color-border-light);
    transition: var(--transition);
}

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

.pricing-card.popular {
    border-color: var(--color-main);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-cta-gradient);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 0.35rem 1.25rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-plan-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-main);
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.pricing-price .currency {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.pricing-price .period {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-text-light);
}

.pricing-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.pricing-features {
    text-align: left;
    margin-bottom: var(--spacing-xl);
    flex: 1;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li .check {
    color: var(--color-accent);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* =============================================
   FAQ Accordion
   ============================================= */
.faq-list {
    max-width: var(--container-narrow);
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-white);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--color-main);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    gap: var(--spacing-md);
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-main);
}

.faq-question .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.faq-item.active .faq-icon {
    background: var(--color-main);
    color: #fff;
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* details/summary 方式のFAQ: ネイティブ開閉 */
details.faq-item .faq-answer {
    max-height: none;
    overflow: visible;
}

details.faq-item:not([open]) .faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0;
}

.faq-answer-inner {
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.9;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

/* =============================================
   Contact Form
   ============================================= */
.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.form-label .required {
    color: var(--color-danger);
    font-size: var(--font-size-xs);
    margin-left: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-main);
    background: var(--color-bg-white);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-lighter);
}

.form-textarea {
    min-height: 160px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--color-main);
    flex-shrink: 0;
}

.form-submit {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* =============================================
   News List (お知らせ一覧)
   ============================================= */
.news-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.news-filter-btn {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-fast);
}

.news-filter-btn:hover {
    border-color: var(--color-main);
    color: var(--color-main);
}

.news-filter-btn.active {
    background: var(--color-main);
    color: #fff;
    border-color: var(--color-main);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.news-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    background: var(--color-bg-white);
    border-radius: var(--radius);
    padding: var(--spacing-lg) var(--spacing-xl);
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.news-item:hover {
    border-color: var(--color-main);
    box-shadow: var(--shadow-sm);
    color: inherit;
}

.news-item-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    flex-shrink: 0;
    min-width: 100px;
}

.news-item-badge {
    flex-shrink: 0;
}

.news-item-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    flex-grow: 1;
}

.news-item:hover .news-item-title {
    color: var(--color-main);
}

/* News detail */
.news-detail {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow);
}

.news-detail-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.news-detail-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.news-detail-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
}

.news-detail-body {
    font-size: var(--font-size-base);
    line-height: 2;
    color: var(--color-text);
}

.news-detail-body p {
    margin-bottom: var(--spacing-lg);
}

.news-detail-body h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.news-detail-body h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.news-detail-body ul,
.news-detail-body ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.news-detail-body ul {
    list-style: disc;
}

.news-detail-body ol {
    list-style: decimal;
}

.news-detail-body li {
    margin-bottom: var(--spacing-sm);
}

.news-detail-body img {
    border-radius: var(--radius);
    margin: var(--spacing-xl) 0;
}

/* =============================================
   Breadcrumb
   ============================================= */
.breadcrumb {
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.breadcrumb a {
    color: var(--color-text-light);
}

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

.breadcrumb .separator {
    margin: 0 var(--spacing-sm);
    color: var(--color-text-lighter);
}

.breadcrumb .current {
    color: var(--color-text);
    font-weight: 500;
}

/* =============================================
   Pagination
   ============================================= */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg-white);
    color: var(--color-text);
    transition: var(--transition-fast);
    text-decoration: none;
}

.pagination a:hover {
    border-color: var(--color-main);
    color: var(--color-main);
    background: var(--color-main-light);
}

.pagination .current {
    background: var(--color-main);
    color: #fff;
    border-color: var(--color-main);
}

.pagination .dots {
    border: none;
    background: none;
    color: var(--color-text-light);
}

/* =============================================
   Animations
   ============================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.fade-in-up.delay-1 { transition-delay: 0.1s; }
.fade-in-up.delay-2 { transition-delay: 0.2s; }
.fade-in-up.delay-3 { transition-delay: 0.3s; }
.fade-in-up.delay-4 { transition-delay: 0.4s; }

/* =============================================
   Utility Classes
   ============================================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-main { color: var(--color-main); }
.text-accent { color: var(--color-accent); }
.text-light { color: var(--color-text-light); }
.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }
.font-bold { font-weight: 700; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mt-3 { margin-top: var(--spacing-2xl); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-xl); }
.mb-3 { margin-bottom: var(--spacing-2xl); }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* =============================================
   Hero section (top page)
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1a56db 0%, #0d9488 50%, #1544b0 100%);
    overflow: hidden;
    padding-top: var(--header-total);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800"><circle cx="400" cy="400" r="300" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/><circle cx="400" cy="400" r="200" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/><circle cx="400" cy="400" r="100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>') center/cover no-repeat;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: #fff;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-xl);
    text-align: center;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
    color: #fff;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 1rem 2.5rem;
    font-size: var(--font-size-base);
}

.hero-buttons .btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
    backdrop-filter: blur(4px);
}

.hero-buttons .btn-secondary:hover {
    background: #fff;
    color: var(--color-main);
    border-color: #fff;
}

/* =============================================
   Front Page: Hero Section
   ============================================= */
.section-hero {
    position: relative;
    background: linear-gradient(135deg, #1a56db 0%, #0d9488 50%, #1544b0 100%);
    padding: calc(var(--header-total) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
    color: #fff;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800"><circle cx="400" cy="400" r="300" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/><circle cx="400" cy="400" r="200" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/><circle cx="400" cy="400" r="100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>') center/cover no-repeat;
    opacity: 0.5;
    pointer-events: none;
}

.section-hero .container {
    position: relative;
    z-index: 1;
}

.hero-grid {
    align-items: center;
}

.section-hero .hero-content {
    text-align: left;
    color: #fff;
    padding: 0;
    max-width: none;
    margin: 0;
}

.section-hero .hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
    color: #fff;
    letter-spacing: -0.02em;
}

.section-hero .hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-actions .btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
    backdrop-filter: blur(4px);
}

.hero-actions .btn-secondary:hover {
    background: #fff;
    color: var(--color-main);
    border-color: #fff;
}

.btn-arrow {
    display: inline-block;
    transition: transform 0.3s ease;
}

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

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    height: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}

.hero-stat-number small {
    font-size: 0.6em;
    font-weight: 600;
}

.hero-stat-label {
    display: block;
    font-size: var(--font-size-sm);
    opacity: 0.7;
    margin-top: var(--spacing-xs);
}

/* =============================================
   Front Page: Problem Section
   ============================================= */
.card-problem {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.card-problem .card-icon {
    width: 96px;
    height: 96px;
    margin: 0 auto var(--spacing-lg);
    background: #fef2f2;
    border-radius: 50%;
}

.card-problem .card-icon img {
    width: 56px;
    height: 56px;
}

.card-problem .card-text {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

/* =============================================
   Front Page: Solution Section
   ============================================= */
.solution-grid {
    align-items: center;
}

.solution-text {
    padding-right: var(--spacing-xl);
}

.check-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.check-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.check-list-item strong {
    display: block;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.check-list-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

.solution-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: auto;
}

/* =============================================
   Front Page: Features Section
   ============================================= */
.card-feature {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.card-feature .card-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
}

.card-feature .card-icon img {
    width: 52px;
    height: 52px;
}

/* =============================================
   Front Page: Steps Section
   ============================================= */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 0;
    align-items: flex-start;
}

.step-card {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-main);
    color: #fff;
    border-radius: 50%;
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.step-icon {
    width: 120px;
    height: 120px;
    background: var(--color-main-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.step-icon img {
    width: 64px;
    height: 64px;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.step-text {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.6;
}

.step-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--spacing-3xl);
}

.connector-arrow {
    font-size: var(--font-size-2xl);
    color: var(--color-main);
    font-weight: 700;
}

/* =============================================
   Front Page: Pricing Section
   ============================================= */
.card-pricing {
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    position: relative;
    border: 2px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
}

.card-pricing-featured {
    border-color: var(--color-main);
    box-shadow: var(--shadow-lg);
}

.badge-recommend {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-cta-gradient);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 0.35rem 1.25rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: var(--spacing-xl);
}

.pricing-amount {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-main);
    line-height: 1.2;
}

.pricing-period {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-text-light);
}

.pricing-per-account {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.pricing-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

.pricing-action {
    margin-top: var(--spacing-xl);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* =============================================
   Front Page: News Section
   ============================================= */
.section-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
}

.section-header-row .section-title {
    margin-bottom: 0;
}

.section-more-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-main);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.section-more-link:hover {
    gap: var(--spacing-sm);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    min-width: 200px;
}

.news-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    white-space: nowrap;
}

.news-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin: 0;
    flex-grow: 1;
}

.news-title a {
    color: var(--color-text);
    text-decoration: none;
}

.news-title a:hover {
    color: var(--color-main);
}

.news-empty {
    text-align: center;
    color: var(--color-text-light);
    padding: var(--spacing-2xl) 0;
}

/* お知らせ一覧がない場合のスタイル */
.section-gray .news-list .news-item {
    background: var(--color-bg-white);
}

/* =============================================
   Front Page: FAQ Section (details/summary)
   ============================================= */
.faq-q-label,
.faq-a-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 700;
    flex-shrink: 0;
}

.faq-q-label {
    background: var(--color-main);
    color: #fff;
}

.faq-a-label {
    background: var(--color-accent);
    color: #fff;
}

.faq-toggle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    position: relative;
}

.faq-toggle::before {
    content: '';
    width: 10px;
    height: 2px;
    background: var(--color-text-light);
    position: absolute;
}

.faq-toggle::after {
    content: '';
    width: 2px;
    height: 10px;
    background: var(--color-text-light);
    position: absolute;
    transition: var(--transition);
}

details[open] .faq-toggle {
    background: var(--color-main);
}

details[open] .faq-toggle::before {
    background: #fff;
}

details[open] .faq-toggle::after {
    background: #fff;
    transform: rotate(90deg);
    opacity: 0;
}

.faq-answer {
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.faq-answer p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: 0;
}

/* =============================================
   Front Page: CTA Final Section
   ============================================= */
.section-cta-final {
    background: linear-gradient(135deg, #1a56db 0%, #0d9488 100%);
    color: #fff;
    text-align: center;
    padding: var(--spacing-4xl) 0;
}

.cta-final-content {
    max-width: 640px;
    margin: 0 auto;
}

.cta-final-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--spacing-md);
}

.cta-final-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
}

.cta-final-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.btn-xl {
    padding: 1.25rem 3rem;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

.cta-sub-link {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.cta-sub-link:hover {
    color: #fff;
}

/* =============================================
   Page: 導入の流れ (page-setup)
   ============================================= */
.page-setup {
    padding-top: var(--header-total);
}

.hero-setup {
    background: linear-gradient(135deg, #1a56db 0%, #0d9488 100%);
    color: #fff;
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.hero-setup .hero-title {
    color: #fff;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.hero-setup .hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    max-width: 640px;
    margin: 0 auto;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-2xl) auto 0;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 27px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-border);
    border-radius: 2px;
}

.timeline-step {
    position: relative;
    margin-bottom: var(--spacing-3xl);
}

.timeline-step:last-child {
    margin-bottom: 0;
}

.timeline-number {
    position: absolute;
    left: -60px;
    top: 0;
    width: 54px;
    height: 54px;
    background: var(--color-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    box-shadow: 0 0 0 6px var(--color-bg);
}

.timeline-number span {
    color: #fff;
    font-size: var(--font-size-xl);
    font-weight: 800;
}

.timeline-content {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border-light);
}

.timeline-icon {
    width: 64px;
    height: 64px;
    background: var(--color-main-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-main);
}

.timeline-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.timeline-description {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

.timeline-screenshot {
    margin-top: var(--spacing-lg);
}

.screenshot-placeholder {
    background: var(--color-bg);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--color-text-lighter);
    font-size: var(--font-size-sm);
}

/* 動作環境セクション */
.section-alt {
    background: var(--color-bg);
}

.card-requirement {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.card-icon-small {
    width: 64px;
    height: 64px;
    background: var(--color-main-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-main);
}

.card-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

.requirements-note {
    max-width: 700px;
    margin: var(--spacing-2xl) auto 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.requirements-note p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.requirements-note p:last-child {
    margin-bottom: 0;
}

/* CTA セクション */
.section-cta {
    background: linear-gradient(135deg, #1a56db 0%, #0d9488 100%);
    color: #fff;
    text-align: center;
}

.section-cta .section-title {
    color: #fff;
}

.section-cta .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

/* =============================================
   Page: 料金プラン (page-pricing)
   ============================================= */
.page-pricing {
    padding-top: var(--header-total);
}

.hero-pricing {
    text-align: center;
}

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

/* Pricing card (個別ページ用) */
.card-pricing-header {
    text-align: center;
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.card-pricing-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.card-pricing-price {
    margin-bottom: var(--spacing-xs);
}

.price-amount {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-main);
    line-height: 1.2;
}

.price-unit {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-text-light);
}

.card-pricing-period {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

.card-pricing-body {
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.card-pricing-features {
    text-align: left;
}

.card-pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
}

.card-pricing-features li:last-child {
    border-bottom: none;
}

.feature-included::before {
    content: '\2713';
    color: var(--color-accent);
    font-weight: 700;
    flex-shrink: 0;
}

.card-pricing-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border-light);
}

.card-pricing-footer {
    margin-top: var(--spacing-lg);
}

.card-pricing-recommended {
    border-color: var(--color-main);
    box-shadow: var(--shadow-lg);
    transform: scale(1.03);
}

.card-pricing-recommended:hover {
    transform: scale(1.05);
}

.card-pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-cta-gradient);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 0.35rem 1.25rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* Enterprise banner */
.enterprise-banner {
    margin-top: var(--spacing-2xl);
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
    border: 2px solid var(--color-main-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

.enterprise-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.enterprise-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-main-dark);
    margin-bottom: var(--spacing-sm);
}

.enterprise-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.7;
    margin: 0;
}

.enterprise-inner .btn {
    flex-shrink: 0;
}

/* Notice box */
.notice-box {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-sm);
    line-height: 1.8;
    color: var(--color-text);
}

.notice-box p {
    margin: 0;
}

@media (max-width: 768px) {
    .enterprise-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* Comparison table */
.table-responsive {
    overflow-x: auto;
    margin-top: var(--spacing-2xl);
    -webkit-overflow-scrolling: touch;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--color-border-light);
    font-size: var(--font-size-sm);
}

.comparison-table th {
    background: var(--color-text);
    color: #fff;
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.comparison-table th.recommended {
    background: var(--color-main);
}

.comparison-table td.recommended {
    background: var(--color-main-light);
}

.comparison-table tbody tr:hover {
    background: var(--color-bg);
}

/* Example cards */
.card-example {
    text-align: center;
    padding: var(--spacing-xl);
}

.card-example-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.card-example-detail {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.card-example-price {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-main);
    margin-bottom: var(--spacing-sm);
}

.price-tax {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-text-light);
}

.card-example-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
    margin: 0;
}

/* Payment card */
.card-payment {
    text-align: center;
    padding: var(--spacing-2xl);
}

/* CTA buttons */
.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

/* =============================================
   Page: お問い合わせ (page-contact)
   ============================================= */
.page-contact {
    padding-top: var(--header-total);
}

.hero-contact {
    text-align: center;
}

.contact-grid {
    gap: var(--spacing-3xl);
    align-items: flex-start;
}

.contact-form-wrapper {
    flex: 1;
}

.contact-info-wrapper {
    flex: 1;
}

/* Privacy checkbox */
.form-privacy {
    margin-top: var(--spacing-md);
}

.form-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    cursor: pointer;
}

.form-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--color-main);
    flex-shrink: 0;
}

/* Company info card */
.card-company-info {
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.company-info-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.company-info-item:last-child {
    border-bottom: none;
}

.company-info-label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.company-info-value {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin: 0;
    line-height: 1.8;
}

.company-info-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
}

/* Response time card */
.card-response-time {
    text-align: center;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.response-time-icon {
    color: var(--color-main);
    margin-bottom: var(--spacing-md);
}

.response-time-icon svg {
    display: inline-block;
}

.response-time-text {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.response-time-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

/* FAQ link card */
.contact-faq-link {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: var(--spacing-xl);
    text-align: center;
}

.contact-faq-link h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.contact-faq-link p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* =============================================
   Page: 無料トライアル (page-trial)
   ============================================= */
.page-trial {
    padding-top: var(--header-total);
}

.hero-trial {
    text-align: center;
}

/* Trial benefits */
.trial-benefits {
    max-width: 700px;
    margin: var(--spacing-2xl) auto 0;
}

.trial-benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.trial-benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background: var(--color-bg-white);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius);
    border: 1px solid var(--color-border-light);
}

.trial-benefit-check {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 700;
    flex-shrink: 0;
}

.trial-benefit-text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 1.8;
}

/* Trial form */
.trial-form-container {
    max-width: 800px;
    margin: 0 auto;
}

.trial-cta-box {
    max-width: 560px;
    margin: var(--spacing-2xl) auto 0;
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow);
}

.trial-cta-checklist {
    text-align: left;
    max-width: 360px;
    margin: 0 auto var(--spacing-xl);
}

.trial-cta-checklist li {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.trial-cta-checklist li::before {
    content: '\2713';
    color: var(--color-accent);
    font-weight: 700;
    margin-right: var(--spacing-sm);
}

.trial-cta-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

.form-group-half {
    flex: 1;
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

/* Support card */
.card-support {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

/* Additional links */
.trial-additional-links {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.trial-additional-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.trial-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* =============================================
   Page: よくある質問 (page-faq)
   ============================================= */
.page-faq {
    padding-top: var(--header-total);
}

.hero-faq {
    text-align: center;
}

/* FAQ category group */
.faq-category-group {
    margin-bottom: var(--spacing-3xl);
}

.faq-category-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--color-main);
    display: inline-block;
}

/* FAQ empty state */
.faq-empty {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.faq-empty-icon {
    color: var(--color-text-lighter);
    margin-bottom: var(--spacing-lg);
}

.faq-empty-icon svg {
    display: inline-block;
}

.faq-empty-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.faq-empty-description {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.faq-fallback {
    text-align: left;
    max-width: var(--container-narrow);
    margin: var(--spacing-2xl) auto 0;
}

/* FAQ contact CTA */
.faq-contact-cta {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-2xl);
    background: var(--color-main-light);
    border-radius: var(--radius-lg);
    text-align: center;
}

.faq-contact-inner h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.faq-contact-inner p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* =============================================
   Responsive Design
   ============================================= */

/* Large tablets and small desktops */
@media (max-width: 1200px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablets */
@media (max-width: 1200px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .step-connector {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --spacing-4xl: 4rem;
        --spacing-3xl: 3rem;
    }

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

    .header-cta.desktop-only {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-nav,
    .mobile-menu-overlay {
        display: block;
    }

    /* Grid */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    /* Pricing */
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
    }

    /* Footer */
    .footer-inner {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

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

    /* Contact form */
    .contact-form {
        padding: var(--spacing-xl);
    }

    /* News item */
    .news-item {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .news-item-date {
        min-width: auto;
    }

    /* News detail */
    .news-detail {
        padding: var(--spacing-xl);
    }

    .news-detail-title {
        font-size: var(--font-size-2xl);
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: calc(var(--header-total) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    }

    /* Front page hero */
    .section-hero .hero-content {
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-image {
        margin-top: var(--spacing-2xl);
    }

    .hero-stats {
        gap: var(--spacing-xl);
    }

    /* Solution */
    .solution-text {
        padding-right: 0;
    }

    /* Steps */
    .steps-grid {
        grid-template-columns: 1fr 1fr;
    }

    .step-connector {
        display: none;
    }

    /* CTA Final */
    .cta-final-title {
        font-size: var(--font-size-3xl);
    }

    /* 導入の流れ: Timeline */
    .timeline {
        padding-left: 48px;
    }

    .timeline::before {
        left: 21px;
    }

    .timeline-number {
        left: -48px;
        width: 42px;
        height: 42px;
    }

    .timeline-number span {
        font-size: var(--font-size-base);
    }

    .timeline-content {
        padding: var(--spacing-xl);
    }

    /* Pricing page */
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto;
    }

    .card-pricing-recommended {
        transform: none;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }

    /* Contact page */
    .contact-grid {
        gap: var(--spacing-2xl);
    }

    /* Trial page */
    .trial-form {
        padding: var(--spacing-xl);
    }

    .trial-links {
        flex-direction: column;
        align-items: center;
    }

    /* CTA buttons */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* Small phones */
@media (max-width: 480px) {
    :root {
        --font-size-5xl: 1.75rem;
        --font-size-4xl: 1.5rem;
        --font-size-3xl: 1.25rem;
        --spacing-4xl: 3rem;
        --spacing-3xl: 2rem;
        --spacing-2xl: 1.5rem;
    }

    .container,
    .container-narrow {
        padding: 0 var(--spacing-md);
    }

    .header-inner {
        padding: 0 var(--spacing-md);
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: var(--font-size-sm);
    }

    .btn-lg {
        padding: 0.875rem 1.75rem;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .section-header-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .news-filter {
        justify-content: flex-start;
    }

    .contact-form {
        padding: var(--spacing-lg);
    }

    .faq-question {
        padding: var(--spacing-md);
    }

    .faq-answer-inner {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    /* 導入の流れ: Timeline */
    .timeline {
        padding-left: 40px;
    }

    .timeline::before {
        left: 17px;
    }

    .timeline-number {
        left: -40px;
        width: 36px;
        height: 36px;
    }

    .timeline-number span {
        font-size: var(--font-size-sm);
    }

    .timeline-content {
        padding: var(--spacing-lg);
    }

    .timeline-title {
        font-size: var(--font-size-xl);
    }

    /* Trial page */
    .trial-form {
        padding: var(--spacing-lg);
    }

    /* FAQ category title */
    .faq-category-title {
        font-size: var(--font-size-xl);
    }
}

/* =============================================
   Print Styles
   ============================================= */
@media print {
    .site-header,
    .site-footer,
    .hamburger,
    .mobile-nav,
    .mobile-menu-overlay {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    .section {
        padding: 1rem 0;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}