* {
    box-sizing: border-box;
}

:root {
    --site-accent: #18b693;
    --site-bg: #eef3f6;
    --site-ink: #101923;
    --site-muted: #667382;
    --site-soft: #f6f9fb;
    --site-line: #dbe4ea;
    --site-panel: #ffffff;
    --site-dark: #07131f;
    --site-shadow: 0 20px 60px rgba(14, 31, 44, .12);
}

html {
    min-width: 320px;
}

body {
    margin: 0;
    color: var(--site-ink);
    background: var(--site-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.6;
}

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

button,
input,
select {
    font: inherit;
}

.site-topbar {
    min-height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 0 28px;
    color: #fff;
    background: #020407;
    position: sticky;
    top: 0;
    z-index: 20;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 800;
    white-space: nowrap;
}

.site-brand-icon {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: linear-gradient(135deg, #1398d8, #18b693);
    color: #fff;
    font-size: 15px;
}

.site-toplinks {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 22px;
    color: rgba(255, 255, 255, .72);
    font-size: 14px;
    white-space: nowrap;
}

.site-toplinks a:hover {
    color: #fff;
}

.site-shell {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 22px;
    width: min(1780px, calc(100% - 40px));
    margin: 22px auto;
}

.site-sidebar {
    align-self: start;
    position: sticky;
    top: 74px;
    max-height: calc(100vh - 96px);
    overflow: auto;
    padding: 16px;
    border-radius: 8px;
    background: #222;
    color: #fff;
}

.side-title {
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    margin-bottom: 14px;
    background: #f4f4f4;
    color: #222;
    font-size: 14px;
}

.side-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}

.side-links a {
    min-height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 10px;
    border-radius: 6px;
    background: #454545;
    color: #f5f5f5;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
}

.side-links a.active,
.side-links a:hover {
    background: var(--site-accent);
    color: #fff;
}

.site-main {
    min-width: 0;
}

.site-hero {
    min-height: 250px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
    gap: 28px;
    align-items: end;
    padding: 56px;
    border-radius: 8px;
    color: #fff;
    background:
        linear-gradient(90deg, rgba(6, 20, 30, .92), rgba(6, 54, 69, .84)),
        linear-gradient(135deg, #08212c, #0b5a6d);
    box-shadow: var(--site-shadow);
    position: relative;
    overflow: hidden;
}

.site-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: .26;
    background-image:
        linear-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .12) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}

.site-hero > * {
    position: relative;
    z-index: 1;
}

.site-kicker {
    margin: 0 0 12px;
    color: var(--site-accent);
    font-weight: 800;
}

.site-hero h1 {
    margin: 0;
    font-size: clamp(34px, 4.3vw, 68px);
    line-height: 1.08;
    letter-spacing: 0;
}

.site-desc {
    max-width: 780px;
    margin: 18px 0 0;
    color: rgba(255, 255, 255, .78);
    font-size: 17px;
}

.site-note {
    align-self: end;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 8px;
    background: rgba(255, 255, 255, .08);
    color: rgba(255, 255, 255, .84);
}

.site-search-card,
.site-panel,
.site-seo {
    margin-top: 20px;
    padding: 24px;
    border-radius: 8px;
    background: var(--site-panel);
    box-shadow: 0 1px 0 rgba(0, 0, 0, .04);
}

.site-search-form {
    display: grid;
    grid-template-columns: 220px minmax(260px, 1fr) 140px;
    gap: 12px;
    align-items: stretch;
}

.site-search-form select,
.site-search-form input,
.source-form input {
    width: 100%;
    min-height: 52px;
    border: 1px solid var(--site-line);
    border-radius: 7px;
    padding: 0 16px;
    color: var(--site-ink);
    background: #fff;
    outline: none;
}

.site-search-form select:focus,
.site-search-form input:focus,
.source-form input:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--site-accent) 18%, transparent);
}

.site-search-form button,
.source-form button {
    min-height: 52px;
    border: 0;
    border-radius: 7px;
    background: #df2b23;
    color: #fff;
    cursor: pointer;
    font-weight: 800;
}

.site-search-form button:hover,
.source-form button:hover {
    filter: brightness(.95);
}

.site-safe-tip {
    margin: 12px 0 0;
    color: #417268;
    font-size: 13px;
}

.site-ad {
    margin-top: 16px;
    padding: 14px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .04);
}

.site-ad-inner {
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    border: 1px dashed #cfd9e1;
    border-radius: 7px;
    color: #64748b;
    background: #f8fafc;
}

.site-ad-inner strong {
    color: #334155;
}

.site-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 20px;
}

.source-card {
    min-width: 0;
    padding: 18px;
    border: 1px solid var(--site-line);
    border-radius: 8px;
    background: #fff;
}

.source-title {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    color: var(--site-ink);
    font-size: 18px;
    font-weight: 800;
}

.source-logo {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #fff;
    background: var(--site-accent);
}

.source-card p {
    min-height: 44px;
    margin: 12px 0;
    color: var(--site-muted);
}

.source-form {
    display: grid;
    grid-template-columns: minmax(120px, 1fr) 84px;
    gap: 10px;
}

.source-form input,
.source-form button {
    min-height: 44px;
}

.site-seo h2 {
    margin: 0 0 12px;
    font-size: 24px;
}

.site-seo p {
    color: var(--site-muted);
}

.keyword-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 340px;
    overflow: auto;
}

.keyword-cloud a {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--site-soft);
    color: #3f4d5a;
    font-size: 13px;
}

.keyword-cloud a:hover {
    background: color-mix(in srgb, var(--site-accent) 16%, #fff);
    color: #0f2d28;
}

.kuaidi-frame {
    width: 100%;
    max-width: 1200px;
    display: block;
    margin: 0 auto;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    width: min(1780px, calc(100% - 40px));
    margin: 0 auto 28px;
    padding: 18px 22px;
    border-radius: 8px;
    color: #6a7683;
    background: rgba(255, 255, 255, .72);
}

.site-footer nav {
    display: flex;
    gap: 14px;
    white-space: nowrap;
}

.site-footer a:hover {
    color: var(--site-ink);
}

@media (max-width: 1100px) {
    .site-shell {
        grid-template-columns: 1fr;
    }

    .site-sidebar {
        position: static;
        max-height: none;
    }

    .side-links {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .site-hero {
        grid-template-columns: 1fr;
        padding: 36px;
    }

    .site-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .site-topbar,
    .site-footer {
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
    }

    .site-toplinks,
    .site-footer nav {
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 12px;
    }

    .site-shell,
    .site-footer {
        width: calc(100% - 24px);
        margin-left: auto;
        margin-right: auto;
    }

    .side-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-hero,
    .site-search-card,
    .site-panel,
    .site-seo {
        padding: 18px;
    }

    .site-search-form,
    .source-form {
        grid-template-columns: 1fr;
    }

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