:root {
    --bg-start: #5c6cff;
    --bg-mid: #6f54da;
    --bg-end: #2979c9;
    --panel: rgba(255, 255, 255, 0.96);
    --panel-strong: #ffffff;
    --text: #1f2430;
    --muted: #5e687d;
    --line: #e4e8f1;
    --accent: #3457d5;
    --accent-strong: #2644a7;
    --success: #0f766e;
    --warning: #b45309;
    --shadow: 0 24px 60px rgba(24, 34, 66, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.26), transparent 32%),
        linear-gradient(135deg, var(--bg-start) 0%, var(--bg-mid) 52%, var(--bg-end) 100%);
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

.page-shell {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.page-header {
    padding: 24px 0 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 0.02em;
    backdrop-filter: blur(12px);
}

.brand:hover {
    text-decoration: none;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.nav-links a {
    padding: 10px 14px;
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.92);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
}

.nav-links a[aria-current="page"] {
    background: #ffffff;
    color: var(--accent-strong);
    font-weight: 600;
}

.hero {
    padding: 8px 0 24px;
}

.card {
    background: var(--panel);
    border-radius: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-card {
    padding: 34px;
}

.eyebrow {
    margin: 0 0 10px;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
}

.hero-title {
    margin: 0;
    font-size: clamp(32px, 5vw, 48px);
    line-height: 1.08;
}

.hero-lead {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.8;
    max-width: 820px;
}

.hero-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding: 10px 14px;
    border-radius: 14px;
    background: #f4f6fb;
    color: var(--muted);
    font-size: 14px;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.quick-links a {
    padding: 12px 16px;
    border-radius: 14px;
    background: #f3f6ff;
    color: var(--accent-strong);
    font-weight: 600;
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    padding-bottom: 28px;
}

.content-card {
    padding: 30px;
}

.side-card {
    position: sticky;
    top: 24px;
    align-self: start;
    padding: 24px;
}

.side-card h2,
.content-card h2 {
    margin: 0 0 14px;
    font-size: 24px;
}

.content-card h3 {
    margin: 24px 0 12px;
    font-size: 18px;
}

.content-card p,
.content-card li {
    font-size: 15px;
    line-height: 1.9;
    color: var(--muted);
}

.content-card ul,
.content-card ol {
    margin: 0 0 20px;
    padding-left: 22px;
}

.content-card strong {
    color: var(--text);
}

.content-card section + section {
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.note {
    margin: 18px 0 20px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #f6f8fc;
    border-left: 4px solid var(--accent);
}

.note strong {
    display: inline-block;
    margin-bottom: 6px;
}

.note.warning {
    background: #fff7ed;
    border-left-color: var(--warning);
}

.note.success {
    background: #ecfdf5;
    border-left-color: var(--success);
}

.summary-list,
.status-list {
    margin: 0;
    padding-left: 20px;
}

.summary-list li,
.status-list li {
    margin-bottom: 10px;
    color: var(--muted);
    line-height: 1.7;
}

.status-list li strong {
    color: var(--text);
}

.small-links {
    margin-top: 18px;
    display: grid;
    gap: 10px;
}

.small-links a {
    display: block;
    padding: 12px 14px;
    border-radius: 14px;
    background: #f6f8fc;
    color: var(--accent-strong);
    font-weight: 600;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 14px;
    overflow: hidden;
    border-radius: 18px;
    border: 1px solid var(--line);
}

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
}

.data-table th {
    width: 180px;
    background: #f7f9fc;
    color: var(--text);
    font-weight: 700;
}

.data-table tr:last-child th,
.data-table tr:last-child td {
    border-bottom: 0;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-item {
    padding: 18px 20px;
    border-radius: 20px;
    background: #f7f9fc;
    border: 1px solid var(--line);
}

.faq-item h2 {
    margin: 0 0 10px;
    font-size: 19px;
}

.faq-item p {
    margin: 0;
}

.step-list {
    counter-reset: guide-step;
    list-style: none;
    padding: 0;
    margin: 0;
}

.step-list li {
    position: relative;
    padding: 18px 18px 18px 70px;
    margin-bottom: 14px;
    border-radius: 20px;
    background: #f7f9fc;
    border: 1px solid var(--line);
}

.step-list li::before {
    counter-increment: guide-step;
    content: counter(guide-step);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--bg-start), var(--bg-mid));
    color: #ffffff;
    font-weight: 700;
}

.page-footer {
    padding: 0 0 28px;
}

.footer-card {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
}

.footer-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-links a {
    font-weight: 600;
}

@media (max-width: 920px) {
    .page-layout {
        grid-template-columns: 1fr;
    }

    .side-card {
        position: static;
    }

    .footer-card {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 720px) {
    .page-shell {
        width: min(100%, calc(100% - 20px));
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        justify-content: flex-start;
    }

    .hero-card,
    .content-card,
    .side-card {
        padding: 22px;
        border-radius: 22px;
    }

    .data-table,
    .data-table tbody,
    .data-table tr,
    .data-table th,
    .data-table td {
        display: block;
        width: 100%;
    }

    .data-table th {
        border-bottom: 0;
        padding-bottom: 0;
    }

    .data-table td {
        padding-top: 10px;
    }
}