* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: #f2f6fb;
    color: #1f2d3d;
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== 顶部渐变横幅 ===== */
.hero {
    background: linear-gradient(160deg, #0f5fd6 0%, #1a7ae0 35%, #2fa3e6 100%);
    color: #fff;
    padding: 18px 20px 40px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "";
    position: absolute;
    right: -40px; top: -40px;
    width: 220px; height: 220px;
    background: radial-gradient(circle, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
}
.hero-title { font-size: 24px; font-weight: 800; line-height: 1.35; position: relative; z-index: 1; }
.hero-title small { display: block; font-size: 15px; font-weight: 500; opacity: .9; margin: 2px 0; }
.hero-desc {
    margin-top: 18px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 14px;
    padding: 16px;
    font-size: 13.5px;
    line-height: 1.9;
    backdrop-filter: blur(2px);
    position: relative; z-index: 1;
}

/* ===== 批准信息条 ===== */
.approve-bar {
    margin: -22px 16px 0;
    background: linear-gradient(90deg, #0b57c9, #1c8ae8);
    color: #fff;
    text-align: center;
    font-weight: 700;
    font-size: 15px;
    padding: 10px;
    border-radius: 10px;
    position: relative; z-index: 2;
    box-shadow: 0 6px 16px rgba(11,87,201,.25);
}
.indication-card {
    margin: 14px 16px 0;
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 10px rgba(20,60,120,.06);
}
.indication-card h3 { font-size: 14px; color: #0b57c9; margin-bottom: 8px; }
.indication-card ul { list-style: none; font-size: 13px; line-height: 1.9; color: #333; }
.indication-card li::before { content: "• "; color: #1c8ae8; }

/* ===== AI 助手卡片 ===== */
.assistant-card {
    margin: 16px 16px 0;
    background: #eaf3fe;
    border-radius: 14px;
    padding: 14px 16px 16px;
}
.assistant-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.assistant-head .avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg,#1c8ae8,#0b57c9);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
}
.assistant-head .name { font-weight: 700; font-size: 13px; color: #0b57c9; }
.assistant-head .hello { font-size: 13px; color: #555; }
.assistant-tabs { display: flex; gap: 8px; margin-bottom: 10px; }
.assistant-tabs span {
    flex: 1; text-align: center; background: #fff; border-radius: 8px;
    padding: 7px 0; font-size: 12.5px; color: #0b57c9; font-weight: 600;
}
.assistant-input {
    display: flex; align-items: center; background: #fff; border-radius: 20px;
    padding: 6px 6px 6px 14px;
}
.assistant-input input { flex: 1; border: none; outline: none; font-size: 12.5px; background: transparent; }
.assistant-input button {
    width: 30px; height: 30px; border-radius: 50%; border: none;
    background: #1c8ae8; color: #fff; font-size: 14px;
}

/* ===== 板块标题 ===== */
.section { margin: 22px 16px 0; }
.section-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 18px; font-weight: 800; color: #0b3d91;
    padding: 10px 14px;
    background: linear-gradient(90deg, #d7e8fb, #eef5fd 70%);
    border-left: 5px solid #1c8ae8;
    border-radius: 6px;
}
.section-desc { font-size: 12.5px; color: #667; line-height: 1.8; margin: 10px 2px 12px; }
.section-desc b, .section-desc strong { color: #0b57c9; font-weight: 600; }

/* ===== 指南分类列表 ===== */
.cat-list { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 10px rgba(20,60,120,.06); }
.cat-item {
    display: flex; align-items: center; gap: 12px;
    padding: 15px 16px; border-bottom: 1px solid #f0f2f5;
}
.cat-item:last-child { border-bottom: none; }
.cat-icon {
    width: 34px; height: 34px; border-radius: 9px;
    background: #eaf3fe; display: flex; align-items: center; justify-content: center;
    font-size: 17px; flex-shrink: 0;
}
.cat-name { font-weight: 700; font-size: 14.5px; color: #1f2d3d; }
.cat-sub { font-size: 12px; color: #8a94a6; margin-top: 2px; }
.cat-arrow { margin-left: auto; color: #b7c0cf; font-size: 16px; }

/* ===== 资讯来源 tabs + 列表 ===== */
.news-tabs { display: flex; gap: 22px; padding: 4px 2px 12px; overflow-x: auto; }
.news-tabs a { font-size: 14px; color: #667; white-space: nowrap; padding-bottom: 6px; }
.news-tabs a.active { color: #0b57c9; font-weight: 700; border-bottom: 3px solid #1c8ae8; }
.news-list { background: transparent; }
.news-row {
    display: flex; gap: 12px; align-items: center;
    background: #fff; border-radius: 10px; padding: 12px;
    margin-bottom: 10px; box-shadow: 0 1px 6px rgba(20,60,120,.05);
}
.news-row .thumb { width: 84px; height: 62px; border-radius: 8px; object-fit: cover; background: #dbe8f7; flex-shrink: 0; }
.news-row .title { font-size: 13.5px; line-height: 1.6; color: #1f2d3d; font-weight: 600; }
.more-link { display: block; text-align: center; color: #0b57c9; font-weight: 600; font-size: 13px; padding: 14px 0 6px; }

/* ===== 免责声明 ===== */
.disclaimer {
    margin: 18px 0 0; padding: 14px 20px 26px;
    font-size: 11.5px; color: #97a2b3; line-height: 1.8; text-align: center;
}

/* ===== 二级页面：分类PDF列表 ===== */
.topbar {
    display: flex; align-items: center; background: #fff;
    padding: 12px 14px; border-bottom: 1px solid #eee;
    position: sticky; top: 0; z-index: 10;
}
.topbar .back { font-size: 20px; color: #333; width: 30px; }
.topbar .title { flex: 1; text-align: center; font-size: 16px; font-weight: 700; margin-right: 30px; }
.pdf-list { padding: 6px 14px 20px; }
.pdf-item {
    display: flex; align-items: center; gap: 12px;
    background: #fff; border-radius: 10px; padding: 14px;
    margin-top: 12px; box-shadow: 0 1px 6px rgba(20,60,120,.05);
}
.pdf-icon {
    width: 38px; height: 44px; flex-shrink: 0;
    background: #fff; border-radius: 4px; position: relative;
}
.pdf-icon svg { width: 38px; height: 44px; }
.pdf-info { flex: 1; min-width: 0; }
.pdf-name { font-size: 14px; color: #1f2d3d; line-height: 1.5; word-break: break-all; }
.pdf-meta { font-size: 11.5px; color: #99a3b3; margin-top: 4px; }
.pdf-download { color: #0b57c9; font-size: 12px; font-weight: 600; flex-shrink: 0; }
.empty-tip { text-align: center; color: #9aa4b3; font-size: 13px; padding: 60px 0; }