:root {
    --bg: #f7f8fb;
    --surface: #ffffff;
    --surface-muted: #eef2f7;
    --ink: #111827;
    --muted: #5b6472;
    --line: #d9e0ea;
    --blue: #2454d6;
    --green: #167a52;
    --amber: #b05a00;
    --shadow: 0 18px 45px rgba(17, 24, 39, 0.08);
}

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

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.65;
    color: var(--ink);
    background:
        linear-gradient(135deg, rgba(36, 84, 214, 0.08), transparent 34%),
        linear-gradient(315deg, rgba(22, 122, 82, 0.1), transparent 28%),
        var(--bg);
}

a {
    color: var(--blue);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.site-shell {
    width: min(1080px, calc(100% - 40px));
    margin: 0 auto;
}

.topbar {
    padding: 28px 0 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    font-weight: 700;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    color: #ffffff;
    background: linear-gradient(135deg, var(--blue), var(--green));
    font-size: 0.9rem;
    letter-spacing: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.brand-title {
    font-size: 1.05rem;
}

.brand-subtitle {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 500;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: 24px;
    align-items: stretch;
    padding: 26px 0 28px;
}

.hero-panel,
.side-panel,
.content-panel,
.info-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow);
}

.hero-panel {
    padding: clamp(28px, 5vw, 54px);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--green);
    font-size: 0.88rem;
    font-weight: 700;
}

.eyebrow::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
}

h1,
h2,
h3 {
    margin: 0;
    line-height: 1.25;
}

h1 {
    max-width: 720px;
    font-size: clamp(2rem, 4.6vw, 4rem);
    letter-spacing: 0;
}

h2 {
    margin-bottom: 18px;
    font-size: clamp(1.35rem, 2.8vw, 2rem);
}

h3 {
    margin: 28px 0 10px;
    font-size: 1.08rem;
}

p {
    margin: 0 0 14px;
}

.lead {
    max-width: 720px;
    margin-top: 18px;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink);
    background: var(--surface);
    font-weight: 700;
    text-decoration: none;
}

.button:hover {
    text-decoration: none;
    border-color: var(--blue);
}

.button.primary {
    border-color: var(--blue);
    color: #ffffff;
    background: var(--blue);
}

.button.primary:hover {
    background: #1d46b4;
}

.side-panel {
    padding: 24px;
}

.side-panel h2 {
    font-size: 1.15rem;
}

.quick-list {
    display: grid;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.quick-list li {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.quick-list strong {
    display: block;
    margin-bottom: 2px;
}

.quick-list span {
    color: var(--muted);
    font-size: 0.94rem;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    padding: 10px 0 40px;
}

.content-panel {
    padding: clamp(22px, 4vw, 38px);
}

.content-panel > :last-child {
    margin-bottom: 0;
}

.policy-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 18px 0 26px;
    color: var(--muted);
    font-size: 0.95rem;
}

.policy-meta span {
    padding: 6px 10px;
    border-radius: 6px;
    background: var(--surface-muted);
}

.section-list {
    margin: 0;
    padding-left: 20px;
}

.section-list li {
    margin-bottom: 8px;
}

.notice {
    margin: 24px 0;
    padding: 16px 18px;
    border-left: 4px solid var(--amber);
    border-radius: 6px;
    color: #593200;
    background: #fff7e8;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.info-card {
    padding: 22px;
}

.info-card h3 {
    margin-top: 0;
}

.info-card p:last-child,
.info-card ul:last-child {
    margin-bottom: 0;
}

.contact-box {
    display: grid;
    gap: 10px;
    margin-top: 16px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-muted);
}

.contact-row {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 12px;
}

.contact-row span:first-child {
    color: var(--muted);
}

.footer {
    padding: 0 0 30px;
    color: var(--muted);
    font-size: 0.9rem;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    border-top: 1px solid var(--line);
    padding-top: 22px;
}

@media (max-width: 760px) {
    .site-shell {
        width: min(100% - 28px, 1080px);
    }

    .topbar {
        padding-top: 20px;
    }

    .hero,
    .support-grid {
        grid-template-columns: 1fr;
    }

    .hero-panel,
    .side-panel,
    .content-panel,
    .info-card {
        box-shadow: 0 12px 26px rgba(17, 24, 39, 0.07);
    }

    .hero-actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .contact-row {
        grid-template-columns: 1fr;
        gap: 2px;
    }
}