:root {
    --bg: #f6f8fc;
    --bg-grad-1: #f2f8ff;
    --bg-grad-2: #f6f5ff;
    --card: #ffffff;
    --text: #182033;
    --muted: #5f6b84;
    --line: #dbe4f3;
    --brand: #1a5fd1;
    --brand-2: #0f9a79;
    --shadow: 0 10px 30px rgba(18, 38, 63, 0.06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: radial-gradient(circle at 10% 0%, var(--bg-grad-1), transparent 45%), radial-gradient(circle at 90% 20%, var(--bg-grad-2), transparent 42%), var(--bg);
    line-height: 1.6;
}

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

a:hover {
    text-decoration: underline;
}

.page {
    max-width: 980px;
    margin: 0 auto;
    padding: 24px 16px 60px;
}

.hero {
    background: linear-gradient(135deg, #ffffff, #f7fbff 58%, #f4f6ff);
    border: 1px solid #e7edfa;
    border-radius: 24px;
    box-shadow: var(--shadow);
    padding: 20px 24px;
    margin-bottom: 18px;
}

.hero h1 {
    margin: 0 0 8px;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
}

.hero p {
    margin: 0;
    color: #5a6882;
    font-size: 1rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.hero-tags span {
    display: inline-block;
    border: 1px solid #d7e6ff;
    color: #2357a6;
    background: #f4f8ff;
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 0.85rem;
}

.section {
    background: var(--card);
    border: 1px solid #e6ebf6;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(20, 40, 66, 0.04);
    padding: 22px;
    margin-top: 16px;
}

.section h2 {
    margin: 0 0 12px;
    font-size: 1.15rem;
}

.guide {
    margin: 0;
    padding: 14px 16px 14px 34px;
    border-radius: 14px;
    background: linear-gradient(180deg, #eef6ff, #f7fbff);
    color: #24528f;
    border: 1px solid #d9e8ff;
}

.guide li {
    margin-bottom: 8px;
}

.guide li:last-child {
    margin-bottom: 0;
}

.guide-cta {
    margin-top: 10px;
    text-align: right;
}

.guide-cta a {
    display: inline-block;
    padding: 8px 12px;
    border-radius: 10px;
    background: linear-gradient(135deg, #1d66da, #148fcb);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 6px 14px rgba(20, 95, 202, 0.2);
}

.guide-cta a:hover {
    text-decoration: none;
    filter: brightness(0.97);
}

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

.spacious-list li {
    border: 1px solid #dbe3f2;
    background: #fff;
    border-radius: 14px;
    padding: 16px 16px 14px;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    position: relative;
}

.spacious-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: linear-gradient(180deg, #2e6fdf, #38b795);
    opacity: 0.85;
}

.spacious-list li:hover {
    transform: translateY(-1px);
    border-color: #cfdcf2;
    box-shadow: 0 10px 20px rgba(23, 104, 229, 0.07);
}

.spacious-list p {
    margin: 0;
    padding-left: 10px;
    overflow-wrap: break-word;
    white-space: normal;
    color: #3f4d66;
    font-size: 0.95rem;
    line-height: 1.75;
}

.spacious-list blockquote {
    margin: 12px 0 0;
    padding: 0;
    border: 0;
}

.spacious-list blockquote p {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    padding-left: 10px;
}

.spacious-list blockquote a {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 8px;
    background: #f3f7ff;
    border: 1px solid #dbe6fb;
    font-size: 0.88rem;
    color: #204f9f;
    text-decoration: none;
}

.spacious-list blockquote a:hover {
    background: #edf4ff;
    text-decoration: none;
}

.spacious-list li p span {
    font-weight: bold;
    color: #e17f00;
}

.spacious-list li p b {
    font-weight: bold;
    color: #1b449b;
}

.spacious-list li p i {
    font-weight: bold;
}

.split {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr;
}

.link-list {
    margin: 0;
    padding-left: 18px;
}

.link-list li {
    margin-bottom: 10px;
}

.link-list blockquote {
    margin: 6px 0 0;
    color: var(--muted);
    border-left: 3px solid #dde7f8;
    padding-left: 10px;
}

.note {
    color: #5e6f8a;
    font-size: 0.92rem;
    margin-top: 8px;
}

@media (min-width: 860px) {
    .page {
        padding-top: 28px;
    }

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

    .section {
        padding: 24px;
    }
}

@media (max-width: 640px) {
    .spacious-list li {
        padding: 14px 12px 12px;
    }

    .spacious-list li>p {
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 6;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.75em * 6);
    }

    .spacious-list p,
    .spacious-list blockquote p {
        padding-left: 8px;
    }

    .spacious-list blockquote p {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .spacious-list blockquote a {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        text-align: center;
        white-space: normal;
        word-break: break-word;
        overflow-wrap: anywhere;
        line-height: 1.3;
    }

    .guide-cta {
        text-align: left;
    }
}