.zg-hero {
    padding: 44px 28px 36px;
    background: linear-gradient(180deg, #EAF2FB 0%, var(--bg) 100%);
    border-bottom: 1px solid var(--border-soft);
}
.zg-hero-inner {
    max-width: var(--max-w);
    margin: 0 auto;
}
.zg-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(30px, 5vw, 46px);
    line-height: 1.06;
    letter-spacing: -0.5px;
    color: var(--text);
    margin-bottom: 14px;
    max-width: 22ch;
}
.zg-hero h1 .accent {
    color: var(--accent);
}
.zg-hero p {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--text-2);
    line-height: 1.55;
    max-width: 60ch;
    margin: 0;
}
.zg-body {
    padding: 8px 28px 72px;
}
.zg-body-inner {
    max-width: var(--max-w);
    margin: 0 auto;
}
.zg-intro {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    margin: 32px 0 8px;
    box-shadow: var(--shadow-sm);
}
.zg-intro p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.7;
    margin: 0;
}
.zg-intro p + p {
    margin-top: 12px;
}
.zg-callout {
    background: var(--blue-bg);
    border: 1px solid var(--blue-border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    margin: 16px 0 0;
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.65;
}
.zg-callout strong {
    color: var(--text);
    font-weight: 600;
}
.zg-callout a {
    font-weight: 500;
}
.zg-group {
    margin-top: 40px;
}
.zg-group-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 8px;
}
.zg-group-bar {
    width: 4px;
    height: 36px;
    border-radius: 2px;
    flex-shrink: 0;
}
.zg-group--res .zg-group-bar { background: var(--accent); }
.zg-group--non .zg-group-bar { background: #34C759; }
.zg-group--spc .zg-group-bar { background: #FF9500; }
.zg-group-head h2 {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.8vw, 28px);
    letter-spacing: -0.3px;
    color: var(--text);
    margin: 0;
}
.zg-group > p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.7;
    margin: 0 0 20px;
    max-width: 70ch;
}
.zg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}
.zg-card {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 20px 22px 18px;
    box-shadow: var(--shadow-sm);
    border-top-width: 3px;
    transition: box-shadow 0.18s ease, transform 0.18s ease;
}
.zg-card:hover {
    box-shadow: 0 6px 24px rgba(0,0,0,0.10);
    transform: translateY(-2px);
}
.zg-group--res .zg-card { border-top-color: var(--accent); }
.zg-group--non .zg-card { border-top-color: #34C759; }
.zg-group--spc .zg-card { border-top-color: #FF9500; }
.zg-card-code {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 10px;
}
.zg-group--res .zg-card-code {
    background: var(--blue-bg);
    color: var(--accent);
}
.zg-group--non .zg-card-code {
    background: rgba(52,199,89,0.10);
    color: #1A7F36;
}
.zg-group--spc .zg-card-code {
    background: rgba(255,149,0,0.10);
    color: #B36B00;
}
.zg-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.1px;
    margin: 0 0 8px;
}
.zg-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.65;
    margin: 0 0 14px;
}
.zg-card dl {
    margin: 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
    font-size: 13px;
    border-top: 1px solid var(--border-soft);
    padding-top: 12px;
}
.zg-card dt {
    font-weight: 600;
    color: var(--text-3);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding-top: 2px;
}
.zg-card dd {
    margin: 0;
    color: var(--text-2);
    line-height: 1.5;
}
.zg-card .unverified {
    color: var(--text-3);
    font-style: italic;
}
.zg-h2-plain {
    font-family: var(--font-display);
    font-size: clamp(22px, 3vw, 28px);
    letter-spacing: -0.3px;
    color: var(--text);
    margin: 48px 0 16px;
}
.zg-section {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 28px 28px 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}
.zg-section h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 10px;
    letter-spacing: -0.1px;
}
.zg-section p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.7;
    margin: 0 0 12px;
    max-width: 70ch;
}
.zg-section p:last-child {
    margin-bottom: 0;
}
.zg-section a {
    font-weight: 500;
}
.zg-steps {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.zg-steps li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.6;
}
.zg-step-num {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    margin-top: 1px;
}
.zg-step-text {
    flex: 1;
    min-width: 0;
}
.zg-steps li a {
    font-weight: 500;
}
.zg-contact {
    margin-top: 16px;
    padding: 18px 20px;
    background: var(--bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}
.zg-contact strong {
    color: var(--text);
    font-weight: 600;
    display: block;
    margin-bottom: 6px;
    font-size: 15px;
}
.zg-contact a {
    font-weight: 500;
}
.zg-note {
    margin-top: 16px;
    padding: 13px 16px;
    background: var(--blue-bg);
    border: 1px solid var(--blue-border);
    border-radius: var(--radius-md);
    font-size: 13.5px;
    color: var(--text-2);
    line-height: 1.6;
}
.zg-note strong {
    color: var(--text);
    font-weight: 600;
}
.zg-faq {
    margin-bottom: 8px;
}
.zg-faq details {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.zg-faq summary {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    padding: 16px 20px;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.zg-faq summary::-webkit-details-marker { display: none; }
.zg-faq summary::after {
    content: "+";
    font-size: 22px;
    font-weight: 400;
    color: var(--text-3);
    flex-shrink: 0;
    line-height: 1;
}
.zg-faq details[open] summary::after { content: "\2212"; }
.zg-faq details[open] summary {
    border-bottom: 1px solid var(--border-soft);
}
.zg-faq p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    padding: 14px 20px 18px;
    margin: 0;
}
.zg-faq p a { font-weight: 500; }
.zg-disclaimer {
    margin-top: 8px;
    padding: 16px 20px;
    background: var(--bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.6;
}
.zg-source {
    font-size: 13px;
    color: var(--text-3);
    line-height: 1.6;
    margin: 20px 0 0;
}
.zg-source a { font-weight: 500; }
@media (max-width: 640px) {
    .zg-hero { padding: 32px 18px 28px; }
    .zg-body { padding: 8px 18px 56px; }
    .zg-intro { padding: 20px; }
    .zg-section { padding: 22px 18px 16px; }
    .zg-grid { grid-template-columns: 1fr; }
}