:root {
    font-family: Inter, "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
    color: #13231c;
    background: #f6f8f7;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    margin: 0;
    background: #f6f8f7;
    color: #13231c;
}

a {
    color: inherit;
    text-decoration: none;
}

.seo-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at 50% 2%, rgba(7, 193, 96, .09), transparent 24rem),
        #f6f8f7;
}

.seo-header {
    display: flex;
    width: min(1120px, calc(100% - 40px));
    min-height: 76px;
    margin: 0 auto;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e1e8e4;
}

.seo-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 800;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 2px solid #2a7d5a;
    border-radius: 13px;
    color: #07a653;
    font-size: 20px;
    line-height: 1;
}

.seo-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    color: #607168;
    font-size: 14px;
    font-weight: 650;
}

.seo-nav a:hover,
.breadcrumb a:hover,
.article-card:hover h2,
.related-card:hover h3 {
    color: #078c48;
}

.use-button {
    padding: 10px 20px;
    border-radius: 999px;
    background: #102b1e;
    color: #fff !important;
    font-size: 13px;
}

.help-hero {
    width: min(900px, calc(100% - 40px));
    margin: 0 auto;
    padding: 78px 0 50px;
    text-align: center;
}

.eyebrow {
    color: #078c48;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
}

.help-hero h1 {
    margin: 14px 0;
    font-size: clamp(34px, 6vw, 54px);
    letter-spacing: -.045em;
}

.help-hero p {
    max-width: 680px;
    margin: 0 auto;
    color: #6f8077;
    font-size: 16px;
    line-height: 1.9;
}

.guide-directory-link {
    display: inline-block;
    margin-top: 18px;
    color: #168352;
    font-size: 13px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.guide-empty {
    grid-column: 1 / -1;
    padding: 34px;
    border: 1px solid #dfe7e2;
    border-radius: 18px;
    background: #fff;
    color: #718078;
    text-align: center;
}

.guide-page-summary {
    margin-top: 12px !important;
    color: #87968e !important;
    font-size: 13px !important;
}

.article-grid {
    display: grid;
    width: min(1040px, calc(100% - 40px));
    margin: 0 auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.article-card {
    display: flex;
    min-height: 214px;
    padding: 28px;
    flex-direction: column;
    border: 1px solid #dfe7e2;
    border-radius: 20px;
    background: rgba(255, 255, 255, .92);
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.article-card:hover {
    transform: translateY(-3px);
    border-color: #b9d9c8;
    box-shadow: 0 20px 50px rgba(20, 56, 38, .08);
}

.article-card small {
    color: #079c50;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .12em;
}

.article-card h2 {
    margin: 14px 0 12px;
    font-size: 22px;
    line-height: 1.45;
    transition: color .2s;
}

.article-card p {
    margin: 0 0 20px;
    color: #718078;
    font-size: 14px;
    line-height: 1.75;
}

.read-link {
    margin-top: auto;
    color: #146f43;
    font-size: 13px;
    font-weight: 750;
}

.guide-pagination {
    display: flex;
    width: min(1040px, calc(100% - 40px));
    margin: 34px auto 0;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.guide-pagination a,
.guide-pagination span {
    display: inline-flex;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    align-items: center;
    justify-content: center;
    border: 1px solid #dce6e0;
    border-radius: 10px;
    background: #fff;
    color: #476155;
    font-size: 13px;
    font-weight: 700;
}

.guide-pagination a:hover {
    border-color: #83cba3;
    color: #087f43;
}

.guide-pagination a.current {
    border-color: #07a957;
    background: #07a957;
    color: #fff;
    pointer-events: none;
}

.guide-pagination .page-gap {
    min-width: 24px;
    padding: 0;
    border: 0;
    background: transparent;
}

.guide-pagination .page-direction {
    min-width: 88px;
}

.guide-pagination .disabled {
    opacity: .42;
}

.breadcrumb {
    width: min(900px, calc(100% - 40px));
    margin: 0 auto;
    padding: 28px 0 0;
    color: #78877f;
    font-size: 13px;
}

.breadcrumb span {
    margin: 0 8px;
    color: #b0bab5;
}

.article-layout {
    display: grid;
    width: min(1040px, calc(100% - 40px));
    margin: 28px auto 0;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
    align-items: start;
}

.article-main,
.article-side {
    border: 1px solid #e0e7e3;
    border-radius: 22px;
    background: #fff;
}

.article-main {
    padding: clamp(28px, 5vw, 56px);
}

.article-head {
    padding-bottom: 30px;
    border-bottom: 1px solid #e8eeeb;
}

.article-head h1 {
    margin: 12px 0 14px;
    font-size: clamp(30px, 5vw, 44px);
    line-height: 1.25;
    letter-spacing: -.035em;
}

.article-head .summary {
    margin: 0;
    color: #607168;
    font-size: 16px;
    line-height: 1.9;
}

.article-meta {
    margin-top: 18px;
    color: #98a49e;
    font-size: 12px;
}

.article-action {
    display: flex;
    margin-top: 26px;
    padding: 18px 20px;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border: 1px solid #bfe8cf;
    border-radius: 16px;
    background: #f1fbf5;
}

.article-action strong,
.article-action span {
    display: block;
}

.article-action strong {
    margin-bottom: 5px;
    color: #185f3b;
    font-size: 16px;
}

.article-action span {
    color: #5d7468;
    font-size: 13px;
    line-height: 1.65;
}

.article-action-button {
    flex: 0 0 auto;
    padding: 11px 17px;
    border-radius: 999px;
    background: #07a957;
    color: #fff;
    font-size: 13px;
    font-weight: 750;
    text-align: center;
}

.article-section {
    padding-top: 34px;
}

.article-section h2 {
    margin: 0 0 16px;
    font-size: 24px;
}

.article-section p {
    margin: 0 0 14px;
    color: #4f6258;
    font-size: 16px;
    line-height: 2;
}

.article-section ul {
    margin: 18px 0 0;
    padding: 18px 22px 18px 42px;
    border-radius: 14px;
    background: #f3f8f5;
    color: #365146;
}

.article-section li {
    margin: 8px 0;
    line-height: 1.7;
}

.article-notice {
    margin-top: 38px;
    padding: 20px 22px;
    border: 1px solid #f0deb0;
    border-radius: 14px;
    background: #fff9e9;
    color: #72551b;
    font-size: 14px;
    line-height: 1.8;
}

.article-final-action {
    margin-top: 24px;
    padding: 25px;
    border-radius: 18px;
    background: #173f2c;
    color: #fff;
    text-align: center;
}

.article-final-action h2 {
    margin: 0 0 8px;
    font-size: 21px;
}

.article-final-action p {
    margin: 0 auto 17px;
    max-width: 560px;
    color: #cfe3d7;
    font-size: 14px;
    line-height: 1.75;
}

.article-final-action a {
    display: inline-block;
    padding: 11px 22px;
    border-radius: 999px;
    background: #fff;
    color: #12633c;
    font-size: 14px;
    font-weight: 800;
}

.article-side {
    position: sticky;
    top: 20px;
    padding: 22px;
}

.article-side h2 {
    margin: 0 0 14px;
    font-size: 17px;
}

.related-card {
    display: block;
    padding: 14px 0;
    border-top: 1px solid #e8eeeb;
}

.related-card h3 {
    margin: 0 0 6px;
    font-size: 14px;
    line-height: 1.55;
}

.related-card span {
    color: #8b9891;
    font-size: 12px;
}

.back-help {
    display: block;
    margin-top: 18px;
    padding: 12px;
    border-radius: 10px;
    background: #edf7f1;
    color: #087e43;
    text-align: center;
    font-size: 13px;
    font-weight: 750;
}

.seo-footer {
    width: min(1120px, calc(100% - 40px));
    margin: 70px auto 0;
    padding: 30px 0 44px;
    border-top: 1px solid #e1e8e4;
    color: #8b9891;
    font-size: 12px;
    text-align: center;
}

.seo-footer a {
    color: #47705c;
}

@media (max-width: 820px) {
    .article-grid,
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-side {
        position: static;
    }

    .seo-nav > a:not(.use-button) {
        display: none;
    }
}

@media (max-width: 560px) {
    .seo-header {
        width: calc(100% - 28px);
    }

    .help-hero {
        padding-top: 52px;
    }

    .article-grid,
    .article-layout {
        width: calc(100% - 24px);
    }

    .article-card {
        min-height: 0;
        padding: 22px;
    }

    .guide-pagination {
        width: calc(100% - 24px);
        gap: 6px;
    }

    .guide-pagination a,
    .guide-pagination span {
        min-width: 36px;
        height: 36px;
        padding: 0 9px;
    }

    .guide-pagination .page-direction {
        min-width: 82px;
    }

    .article-main {
        padding: 26px 22px;
    }

    .article-action {
        align-items: stretch;
        flex-direction: column;
    }

    .article-action-button {
        width: 100%;
    }
}