@charset "UTF-8";

/* =========================================
   Variables & Reset
   ========================================= */
:root {
    /* Color Palette */
    --color-primary: #0b1120;    /* Darkest Navy */
    --color-primary-light: #1e293b;
    --color-accent: #d4af37;     /* Champagne Gold */
    --color-accent-hover: #e6b96b;
    --color-text: #334155;       /* Slate Grey */
    --color-text-light: #64748b;
    --color-bg: #ffffff;
    --color-bg-sub: #f8fafc;     /* ????? */
    --color-border: #e2e8f0;
    --color-red: #e11d48;
    
    --font-serif: "Shippori Mincho", "Yu Mincho", serif;
    --font-sans: "Helvetica Neue", "Hiragino Kaku Gothic ProN", Arial, sans-serif;
    
    --max-width: 1040px;
    --header-height: 80px;
}

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

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 2;
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0.08em;
    background-image: radial-gradient(#e2e8f0 1px, transparent 1px);
    background-size: 40px 40px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
}

main { flex: 1; }

h1, h2, h3 { font-family: var(--font-serif); color: var(--color-primary); line-height: 1.5; font-weight: 500; margin: 0; }
p { margin: 0 0 1em 0; }
a { text-decoration: none; color: inherit; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); cursor: pointer; }
img { max-width: 100%; height: auto; vertical-align: bottom; }
ul { list-style: none; padding: 0; margin: 0; }

/* Utility */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.section { padding: 120px 0; }
.bg-sub { background-color: var(--color-bg-sub); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

/* Flow Tabs */
.flow-tab-nav {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 28px;
}
.flow-tab-btn {
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-primary);
    padding: 10px 18px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}
.flow-tab-btn:hover {
    border-color: var(--color-primary);
}
.flow-tab-btn.is-active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.tab-panel {
    display: none;
}
.tab-panel.is-active {
    display: block;
}
.flow-step {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 20px;
    margin-bottom: 28px;
}
.flow-num {
    width: 64px;
    height: 64px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    color: var(--color-primary);
    background: #fff;
}
.flow-content h3 {
    margin-bottom: 8px;
}
.flow-content p {
    margin-bottom: 0;
}
.flow-note {
    border: 1px solid var(--color-border);
    background: #fff;
    padding: 24px;
}

.mb-sm { margin-bottom: 24px; } 
.mb-md { margin-bottom: 48px; }
.mb-lg { margin-bottom: 96px; }
.mt-sm { margin-top: 24px; }
.mt-md { margin-top: 48px; }
.mt-lg { margin-top: 96px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 48px;
    background-color: var(--color-primary);
    color: #fff;
    font-size: 1rem;
    letter-spacing: 0.15em;
    border: 1px solid var(--color-primary);
    cursor: pointer;
    min-width: 260px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(11, 17, 32, 0.15);
    text-decoration: none;
}
.btn:hover {
    background-color: #fff;
    color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(11, 17, 32, 0.1);
}

.btn-mobile-break {
    display: inline;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    box-shadow: none;
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Header */
.header {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex; align-items: center; justify-content: space-between; padding: 0 40px;
    box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.logo { font-family: var(--font-serif); font-size: 1.4rem; color: var(--color-primary); letter-spacing: 0.15em; font-weight: bold; cursor: pointer; }
.nav-pc ul { display: flex; gap: 40px; align-items: center; }
.nav-pc a { font-size: 0.85rem; font-weight: 500; color: var(--color-primary); position: relative; }
.nav-pc a::after {
    content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 1px;
    background: var(--color-accent); transition: width 0.3s;
}
.nav-pc a:hover::after { width: 100%; }

.nav-cta {
    background: var(--color-primary); color: #fff !important; padding: 12px 28px;
    font-size: 0.8rem !important; transition: opacity 0.3s;
}
.nav-cta:hover { opacity: 0.8; }
.nav-cta::after { display: none; }

.hamburger { display: none; font-size: 1.5rem; cursor: pointer; color: var(--color-primary); }

/* HERO SECTION */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    background-color: #fff;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    right: 0; bottom: 0;
    width: 55%; height: 100%;
    background: #f8fafc;
    z-index: 0;
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
    grid-template-areas: 
        "header image"
        "action image";
    align-items: center;
    width: 100%;
    gap: 0 80px;
    position: relative;
    z-index: 1;
}

.hero-header { grid-area: header; }
.hero-action { grid-area: action; }
.hero-image { 
    grid-area: image; 
    display: flex; 
    justify-content: center; 
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 6px 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--color-accent);
}

.hero-header h1 {
    font-size: 3.5rem;
    line-height: 1.3;
    margin-bottom: 32px;
    color: var(--color-primary);
    font-feature-settings: "palt";
}

.hero-action p {
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: 48px;
    line-height: 2;
}

.hero-image img {
    width: 100%;
    max-width: 480px;
    height: auto;
    box-shadow: 40px 40px 80px rgba(11, 17, 32, 0.1);
}

/* Titles */
.section-title {
    font-size: 2.4rem;
    margin-bottom: 80px;
    text-align: center;
    font-weight: 500;
}
.section-subtitle {
    display: block;
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: 16px;
    letter-spacing: 0.2em;
    font-family: var(--font-sans);
    font-weight: 600;
}

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.card {
    background: #fff;
    box-shadow: 0 4px 40px rgba(0,0,0,0.04);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid rgba(0,0,0,0.03);
    cursor: pointer;
}
.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}
.card-img { height: 220px; background: #eee; object-fit: cover; width: 100%; }
.card-body { padding: 40px 32px; }
.card-title { font-size: 1.25rem; margin-bottom: 16px; font-weight: 600; line-height: 1.6; }
.card-text { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.8; margin-bottom: 0; }
.blog-meta { font-size: 0.8rem; color: var(--color-accent); margin-bottom: 12px; display: block; font-weight: 600; }

/* Feature */
.feature-card { text-align: left; }
.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    color: var(--color-accent);
    display: block;
}
.feature-icon svg { width: 48px; height: 48px; stroke-width: 1.2; }
.feature-title { font-size: 1.4rem; margin-bottom: 16px; color: var(--color-primary); font-weight: 600; }
.feature-text { font-size: 0.95rem; color: var(--color-text); line-height: 2; margin-bottom: 0; }

/* Reason Section */
.reason-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.reason-card {
    background: #fff;
    padding: 40px 32px;
    border-left: 5px solid var(--color-accent);
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    border-radius: 4px;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.reason-num {
    font-family: var(--font-serif);
    font-size: 5rem;
    color: #f1f5f9;
    line-height: 1;
    position: absolute;
    top: 0;
    right: 10px;
    font-weight: bold;
    z-index: 0;
    pointer-events: none;
}
.reason-head { 
    font-size: 1.3rem; font-weight: 600; margin-bottom: 24px; color: var(--color-primary); line-height: 1.5; position: relative; z-index: 1;
}
.reason-desc { 
    font-size: 0.95rem; line-height: 1.9; color: var(--color-text); margin: 0 0 24px; position: relative; z-index: 1;
}
.reason-list { position: relative; z-index: 1; }
.reason-list li { margin-bottom: 8px; padding-left: 1.5em; position: relative; font-size: 0.9rem; font-weight: bold; }
.reason-list li::before { content: "\2714"; position: absolute; left: 0; color: var(--color-accent); }

/* --- Method Section --- */
.method-wrapper { max-width: 900px; margin: 0 auto; }
.diagram-title { text-align: center; font-size: 1.2rem; font-weight: bold; margin-bottom: 40px; color: var(--color-primary); }
.process-flow { display: flex; justify-content: space-between; align-items: center; gap: 20px; position: relative; }
.process-box { flex: 1; background: #f8fafc; padding: 30px 20px; border-radius: 8px; text-align: center; border: 1px solid var(--color-border); }
.process-box.bad .resource-bar { display: flex; height: 12px; background: #e2e8f0; margin-top: 15px; border-radius: 6px; overflow: hidden; }
.process-box.bad .used { width: 90%; background: #94a3b8; }
.process-box.bad .remain { width: 10%; background: var(--color-accent); }
.process-box.good .resource-bar { display: flex; height: 12px; background: #e2e8f0; margin-top: 15px; border-radius: 6px; overflow: hidden; }
.process-box.good .used { width: 20%; background: #94a3b8; }
.process-box.good .remain { width: 80%; background: var(--color-accent); }
.process-arrow { font-size: 2rem; color: #cbd5e1; }
.box-label { font-weight: bold; font-size: 1.1rem; display: block; margin-bottom: 5px; }
.box-desc { font-size: 0.8rem; color: var(--color-text-light); line-height: 1.6; }
.resource-label { font-size: 0.75rem; margin-top: 8px; display: flex; justify-content: space-between; color: var(--color-text-light); }
        
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.method-card { background: #fff; padding: 30px 24px; border-radius: 12px; border: 1px solid var(--color-border); text-align: center; }
.method-icon { color: var(--color-accent); font-size: 1.5rem; font-weight: bold; display: block; margin-bottom: 15px; font-family: var(--font-serif); }
.method-name { font-size: 1.1rem; font-weight: bold; margin-bottom: 10px; color: var(--color-primary); }
.method-detail { font-size: 0.9rem; color: var(--color-text); line-height: 1.8; }

/* --- Tone Training --- */
.tone-training-wrapper {
    margin-top: 100px;
    background: #fff;
    padding: 60px 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.02);
    text-align: center;
}
.tone-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-top: 40px;
}
.tone-card {
    background: #fcfcfc; padding: 20px 10px; border-radius: 8px; border: 1px solid var(--color-border); text-align: center; position: relative;
}
.tone-visual {
    height: 80px; width: 100%; margin-bottom: 15px; position: relative; background: rgba(0,0,0,0.02); border-radius: 4px;
}
.tone-line { position: absolute; background: var(--color-accent); border-radius: 4px; height: 4px; }
.tone-1 .tone-line { width: 60%; top: 20%; left: 20%; }
.tone-2 .tone-line { width: 70%; top: 50%; left: 15%; transform: rotate(-35deg); }
.tone-3 .tone-visual::after {
    content: ''; position: absolute; left: 50%; top: 55%; width: 40px; height: 40px;
    border-left: 4px solid var(--color-accent); border-bottom: 4px solid var(--color-accent); transform: translate(-50%, -50%) rotate(-45deg);
}
.tone-4 .tone-line { width: 70%; top: 50%; left: 15%; transform: rotate(35deg); }
.tone-5 .tone-visual::after {
    content: ''; position: absolute; left: 50%; top: 50%; width: 12px; height: 12px; background: var(--color-accent); border-radius: 50%; transform: translate(-50%, -50%);
}
        
.tone-card h4 { font-size: 1rem; margin-bottom: 5px; color: var(--color-primary); font-weight: bold; }
.tone-card p { font-size: 0.8rem; color: var(--color-text-light); line-height: 1.4; }

/* Tone Check */
.tone-check {
    margin-top: 60px;
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    border: 2px solid var(--color-accent);
    box-shadow: 0 15px 40px rgba(197, 160, 89, 0.15);
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.tone-check-header { display: flex; align-items: center; gap: 20px; margin-bottom: 20px; border-bottom: 1px solid #f1f5f9; padding-bottom: 20px; }
.tone-check-icon { color: var(--color-accent); }
.tone-check-icon svg { width: 36px; height: 36px; stroke-width: 3; }
.tone-check-title { font-size: 1.4rem; font-weight: bold; color: var(--color-primary); margin: 0; }
.tone-check-text { font-size: 1rem; line-height: 2; color: var(--color-text); margin: 0; }

.tone-desc-box { margin-top: 40px; text-align: center; }

/* Comparison Chart */
.comparison-wrapper { margin-top: 120px; background: #fff; padding: 0; }
.comparison-title { font-size: 1.6rem; margin-bottom: 60px; text-align: center; color: var(--color-primary); }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 20px; }
.comp-table { width: 100%; border-collapse: collapse; min-width: 600px; margin: 0 auto; }
.comp-table th, .comp-table td {
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
.comp-table thead th {
    background: #fff;
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.9rem;
    padding-bottom: 40px;
    border-bottom: none;
}
.comp-table .col-our {
    background: #fff;
    position: relative;
    width: 35%;
    box-shadow: 0 0 60px rgba(0,0,0,0.05);
    border-radius: 16px;
    border: none;
    z-index: 1;
}
.comp-table thead th.col-our {
    color: var(--color-primary);
    font-size: 1.4rem;
    font-weight: bold;
    font-family: var(--font-serif);
}
.comp-table thead th.col-our::before {
    content: 'RECOMMENDED';
    display: block;
    font-size: 0.7rem;
    color: var(--color-accent);
    letter-spacing: 0.2em;
    margin-bottom: 8px;
    font-family: var(--font-sans);
}

.price-strike { font-size: 0.9rem; color: #94a3b8; text-decoration: line-through; display: block; margin-bottom: 5px; }
.price-campaign { font-size: 1.8rem; color: var(--color-red); font-weight: bold; display: block; font-family: var(--font-serif); }
.small-text { font-size: 0.8rem; color: #94a3b8; display: block; margin-top: 8px; }

/* Page Header */
.page-header { padding: 180px 0 100px; text-align: center; background-color: var(--color-bg-sub); }
.page-header h1 { font-size: 2.8rem; margin-bottom: 10px; }
.page-header span { color: var(--color-accent); font-family: var(--font-sans); letter-spacing: 0.1em; }

/* Form */
.form-group { margin-bottom: 32px; text-align: left; }
.form-label { display: block; margin-bottom: 12px; font-weight: 600; font-size: 0.95rem; }
.form-control { width: 100%; padding: 16px; border: 1px solid var(--color-border); font-size: 1rem; font-family: inherit; background-color: #fff; border-radius: 4px; }

/* Footer */
.footer { background: #fff; border-top: 1px solid var(--color-border); color: var(--color-text); padding: 80px 0 40px; margin-top: auto; }
.footer a { color: var(--color-text); } 
.footer a:hover { color: var(--color-accent); text-decoration: none; }
.footer .btn { color: #fff !important; text-decoration: none; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.copyright { color: #94a3b8; margin-top: 60px; font-size: 0.75rem; text-align: center; }

/* =========================
   Mobile
========================= */
@media (max-width: 768px) {

  .nav-pc {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    margin-bottom: 40px;
    font-size: 1.8rem;
  }

  .hero {
    padding-top: 100px;
    min-height: auto;
    padding-bottom: 60px;
  }

  /* Hero layout (mobile order) */
  .hero-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    text-align: center;
  }

  .hero-header {
    order: 1;
  }

  .hero-image {
    order: 2;
  }

  .hero-action {
    order: 3;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-image img {
    width: 90%;
    transform: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  /* Grid adjustments */
  .grid-3 {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

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

  .pc-only {
    display: none;
  }

  /* Process */
  .process-flow {
    flex-direction: column;
    gap: 30px;
  }

  .process-arrow {
    transform: rotate(90deg);
    margin: 10px 0;
  }

  /* Method / Tone */
  .method-grid {
    grid-template-columns: 1fr;
  }

  .tone-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }

  .tone-card:last-child {
    grid-column: span 2;
  }

  .tone-check {
    padding: 25px;
  }

  .tone-check-title {
    font-size: 1.1rem;
  }

  .tone-desc-box {
    flex-direction: column;
    gap: 30px;
  }

  .tone-training-wrapper {
    padding: 40px 20px;
  }

  /* Comparison / Chart */
  .comparison-wrapper {
    padding: 40px 15px;
  }

  .comparison-title {
    font-size: 1.3rem;
    margin-bottom: 40px;
  }

  .price-campaign {
    font-size: 1.3rem;
  }

  .flow-tab-btn {
    width: 100%;
    max-width: 320px;
  }

  .flow-step {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .flow-num {
    width: 48px;
    height: 48px;
    font-size: 0.9rem;
  }

  .chart-grid {
    grid-template-rows: 250px auto;
    gap: 20px 20px;
  }

  .bar {
    font-size: 1rem;
  }

  .bar-our::before {
    font-size: 0.8rem;
    padding: 6px 12px;
    top: -50px;
  }

  .bar-our::after {
    top: -15px;
  }

  .bar-label {
    font-size: 1rem;
  }

  .bar-price {
    font-size: 0.9rem;
  }

  .text-slot:last-child .bar-price {
    font-size: 1.1rem;
  }

  .btn-mobile-break {
    display: block;
  }
}

/* ===== Blog Card Image ===== */
.card-img{
    width:100%;
    height:180px;
    overflow:hidden;
    border-radius:8px 8px 0 0;
}

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