:root {
    --m-primary: #47aca1;
    --m-primary-dark: #3a948a;
    --m-ink: #1b1b1b;
    --m-price: #c4562a;
    --m-bg: #f3f4f5;
    --m-card: #fff;
    --m-text: #222;
    --m-muted: #6b7076;
    --m-line: #e5e7ea;
    --m-header-h: 56px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--m-bg);
    color: var(--m-text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.65;
}

a {
    color: var(--m-primary-dark);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    border: 0;
}

.m-top {
    position: sticky;
    top: 0;
    z-index: 20;
    background: #1b1b1b;
}

.m-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--m-header-h);
    padding: 0 16px 0 18px;
}

.m-login {
    flex-shrink: 0;
    padding: 6px 12px;
    color: #fff;
    font-size: 14px;
    border: 1px solid #4a4a4a;
    border-radius: 4px;
}

.m-brand {
    display: flex;
    align-items: center;
    height: 100%;
}

.m-brand img {
    display: block;
    width: 110px;
    height: auto;
}

.m-nav {
    display: flex;
    padding: 0 8px 10px;
}

.m-nav a {
    flex: 1;
    padding: 8px 0;
    color: #d8d8d8;
    font-size: 14px;
    text-align: center;
    white-space: nowrap;
}

.m-nav a.is-active {
    color: #fff;
    font-weight: 600;
    box-shadow: inset 0 -2px 0 var(--m-primary);
}

.m-main {
    min-height: calc(100vh - var(--m-header-h));
    padding: 0;
}

.m-hero {
    background: #47aca1;
    color: #fff;
    padding: 36px 20px 32px;
}

.m-hero-kicker {
    margin: 0 0 10px;
    font-size: 11px;
    letter-spacing: 2px;
    opacity: 0.85;
}

.m-hero h1 {
    margin: 0 0 12px;
    font-size: 26px;
    font-weight: 600;
    letter-spacing: 1px;
}

.m-hero p {
    margin: 0;
    font-size: 14px;
    line-height: 1.75;
    opacity: 0.95;
}

.m-hero-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.m-btn-on-hero {
    background: #fff;
    color: #47aca1;
}

.m-btn-on-hero-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.m-entry {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.m-entry a {
    display: block;
    padding: 16px 14px;
    background: #fff;
    border: 1px solid var(--m-line);
    border-radius: 4px;
}

.m-entry strong {
    display: block;
    color: #222;
    font-size: 15px;
}

.m-entry span {
    display: block;
    margin-top: 4px;
    color: var(--m-muted);
    font-size: 12px;
}

.m-banner {
    background: #47aca1;
    color: #fff;
    padding: 28px 20px 24px;
}

.m-banner h1 {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 600;
}

.m-banner .eng {
    display: block;
    font-size: 11px;
    letter-spacing: 2px;
    opacity: 0.8;
}

.m-section {
    padding: 24px 20px;
}

.m-section--white {
    background: #fff;
}

.m-section-head {
    margin-bottom: 16px;
}

.m-section-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.m-section-eng {
    display: block;
    margin-top: 4px;
    color: var(--m-muted);
    font-size: 11px;
    letter-spacing: 1.5px;
}

.m-lead {
    margin: 0 0 18px;
    color: var(--m-muted);
    font-size: 14px;
}

.m-card {
    background: var(--m-card);
    border: 1px solid var(--m-line);
    border-left: 3px solid var(--m-primary);
    padding: 18px 16px 16px;
    margin-bottom: 14px;
}

.m-section--white .m-card {
    background: #fafbfb;
}

.m-card-line {
    margin: 0 0 4px;
    color: var(--m-muted);
    font-size: 12px;
    letter-spacing: 0.3px;
}

.m-card-name {
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 600;
}

.m-card-price {
    color: var(--m-price);
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--m-line);
}

.m-card-price .yen {
    font-size: 13px;
    font-weight: 600;
}

.m-card-price strong {
    font-size: 24px;
    font-weight: 600;
}

.m-card-price em {
    font-size: 12px;
    font-style: normal;
    color: var(--m-muted);
    margin-left: 4px;
}

.m-card-quote {
    font-size: 14px;
    font-weight: 600;
    color: var(--m-price);
}

.m-card-desc {
    margin: 0 0 16px;
    color: #4a4f55;
    font-size: 14px;
}

.m-sku {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    border-top: 1px solid var(--m-line);
}

.m-sku-info {
    flex: 1;
    min-width: 0;
}

.m-sku-info strong {
    display: block;
    font-size: 15px;
}

.m-sku-info em {
    display: block;
    margin-top: 2px;
    font-style: normal;
    color: var(--m-price);
    font-size: 13px;
    font-weight: 600;
}

.m-sku .m-btn {
    flex: none;
    min-width: 88px;
    min-height: 36px;
    padding: 0 12px;
    font-size: 13px;
    letter-spacing: 0;
    white-space: nowrap;
}

.m-card-actions {
    display: flex;
    gap: 8px;
}

.m-card-actions .m-btn {
    flex: 1;
    min-width: 0;
    min-height: 40px;
    padding: 0 6px;
    font-size: 13px;
    letter-spacing: 0;
    white-space: nowrap;
}

.m-donate-label {
    display: block;
    margin: 0 0 8px;
    color: var(--m-muted);
    font-size: 12px;
}

.m-amount-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 16px;
}

.m-amount {
    min-width: 72px;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--m-line);
    background: #fff;
    color: #333;
    font-size: 14px;
    appearance: none;
    -webkit-appearance: none;
}

.m-amount.is-any,
.m-amount.is-on {
    border-color: var(--m-primary);
    color: var(--m-primary);
    font-weight: 600;
}

.m-donate-input {
    display: block;
    width: 100%;
    height: 42px;
    margin: 0 0 16px;
    padding: 0 12px;
    border: 1px solid var(--m-line);
    border-radius: 2px;
    font-size: 16px;
}

.m-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border: 0;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.5px;
    outline: none;
    box-sizing: border-box;
}

.m-btn-primary {
    background: var(--m-primary);
    color: #fff;
}

.m-btn-primary:active {
    background: var(--m-primary-dark);
}

.m-btn-ghost {
    background: #fff;
    color: #333;
    border: 1px solid #cfd3d6;
}

.m-btn-block,
.m-pay-item > .m-btn {
    display: flex;
    width: 100%;
    flex: none;
    margin-top: 6px;
}

.m-sitemap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--m-line);
    border: 1px solid var(--m-line);
}

.m-sitemap a {
    background: #fff;
    padding: 14px 12px;
    color: #333;
    font-size: 14px;
    text-align: center;
}

.m-footer {
    background: #1f2124;
    color: #9a9ea3;
    padding: 28px 20px 24px;
    font-size: 12px;
    line-height: 1.8;
}

.m-footer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #33363b;
}

.m-footer-nav a {
    color: #c8cbcf;
    font-size: 13px;
}

.m-footer p {
    margin: 0 0 4px;
}

.m-footer a {
    color: #9a9ea3;
}

.m-footer-copy {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #33363b;
}

.m-feature-list {
    margin: 0;
    padding: 0 0 0 18px;
    color: #4a4f55;
    font-size: 14px;
}

.m-feature-list li {
    margin-bottom: 6px;
}

.m-info-row {
    display: flex;
    padding: 12px 0;
    border-bottom: 1px solid var(--m-line);
    font-size: 14px;
}

.m-info-row:last-child {
    border-bottom: 0;
}

.m-info-row dt {
    width: 72px;
    flex-shrink: 0;
    color: var(--m-muted);
    margin: 0;
}

.m-info-row dd {
    margin: 0;
    flex: 1;
}

.m-pay-item h3 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
}

.m-pay-item p {
    margin: 0 0 10px;
    color: #4a4f55;
    font-size: 14px;
}

.m-qr {
    display: block;
    width: 148px;
    margin: 8px auto 4px;
}

.m-note {
    font-size: 12px;
    color: var(--m-muted);
    text-align: center;
}

.m-article p {
    margin: 0 0 14px;
    color: #4a4f55;
    font-size: 14px;
}