/* 丹川网络官网共享样式（静态站，无构建依赖） */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --brand: #256d4c;          /* 品牌绿 */
    --brand-dark: #1d5a3e;
    --text-primary: #1f2328;
    --text-secondary: #5f6b7a;
    --border: #e6e9ef;
    --bg: #ffffff;
    --bg-soft: #f7f8fa;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-primary);
    background: var(--bg);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--brand);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
}

.logo-text {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    padding: 9px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.05s;
    border: 1px solid transparent;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--brand);
    color: #fff;
}

.btn-primary:hover {
    background: var(--brand-dark);
}

.btn-lg {
    padding: 13px 34px;
    font-size: 17px;
    border-radius: 10px;
}

/* ===== 主视觉 ===== */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 96px 0 120px;
    background:
        radial-gradient(600px 300px at 85% -10%, rgba(37, 109, 76, 0.08), transparent 60%),
        radial-gradient(500px 260px at 10% 110%, rgba(37, 109, 76, 0.06), transparent 60%);
}

.hero-inner {
    text-align: center;
    max-width: 760px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 14px;
    color: var(--brand);
    letter-spacing: 2px;
    margin-bottom: 20px;
    padding: 4px 14px;
    border: 1px solid rgba(37, 109, 76, 0.25);
    border-radius: 999px;
    background: rgba(37, 109, 76, 0.05);
}

.hero-title {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
    border-top: 1px solid var(--border);
    background: var(--bg-soft);
    padding: 28px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-inner {
    text-align: center;
}

.footer-links {
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: var(--brand);
}

.footer-icp {
    margin-bottom: 6px;
}

.footer-icp a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}

.footer-icp a:hover {
    color: var(--brand);
}

.icp-icon {
    height: 15px;
    vertical-align: middle;
}

.icp-sep {
    margin: 0 8px;
    color: var(--border);
}

.footer-copyright {
    color: #9aa4b2;
}

/* ===== 隐私政策页 ===== */
.page {
    flex: 1;
    padding: 48px 0 72px;
}

.page h1 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 28px;
}

.page h2 {
    font-size: 21px;
    font-weight: 600;
    margin: 32px 0 14px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.page h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 24px 0 10px;
}

.page p {
    margin-bottom: 12px;
}

.page ol,
.page ul {
    padding-left: 24px;
    margin-bottom: 12px;
}

.page li {
    margin-bottom: 6px;
}

.page table {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0 18px;
    font-size: 14px;
}

.page th,
.page td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
    vertical-align: top;
}

.page th {
    background: var(--bg-soft);
    font-weight: 600;
}

.page a {
    color: var(--brand);
}

.page a:hover {
    text-decoration: underline;
}

.page .doc-meta {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

/* ===== 移动端适配 ===== */
@media (max-width: 640px) {
    .header-inner {
        height: 56px;
    }

    .nav-link {
        font-size: 14px;
    }

    .hero {
        padding: 64px 0 88px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .btn-lg {
        padding: 12px 28px;
        font-size: 15px;
    }

    .page h1 {
        font-size: 24px;
    }
}