:root {
    --paper: #F4EAD5;
    --paper-warm: #EBE0C7;
    --ink: #2A1810;
    --ink-soft: #5C4636;
    --ink-faint: #8A7561;
    --accent: #C76E3A;
    --accent-deep: #A85628;
    --ochre: #C99548;
    --rule: rgba(42, 24, 16, 0.12);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(199, 110, 58, 0.35);
    transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
    color: var(--accent-deep);
    border-bottom-color: var(--accent-deep);
}

/* ---------- Shared header ---------- */

.site-header {
    padding: 28px 24px 0;
    max-width: 760px;
    margin: 0 auto;
}

.site-header-inner {
    display: flex;
    align-items: center;
    gap: 14px;
}

.site-header img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(42, 24, 16, 0.18);
}

.site-header .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.site-header .brand-cn {
    font-family: "New York", "Times New Roman", Georgia, "Songti SC", serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
}

.site-header .brand-en {
    font-size: 12px;
    color: var(--ink-faint);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ---------- Landing (index.html) ---------- */

.hero {
    max-width: 640px;
    margin: 0 auto;
    padding: 80px 24px 40px;
    text-align: center;
}

.hero-icon {
    width: 128px;
    height: 128px;
    border-radius: 28px;
    box-shadow: 0 4px 18px rgba(42, 24, 16, 0.18);
    margin: 0 auto 28px;
    display: block;
}

.hero h1 {
    font-family: "New York", "Times New Roman", Georgia, "Songti SC", serif;
    font-style: italic;
    font-weight: 600;
    font-size: 42px;
    margin: 0 0 6px;
    color: var(--ink);
    letter-spacing: 0.01em;
}

.hero .name-en {
    font-family: "New York", "Times New Roman", Georgia, serif;
    font-size: 18px;
    color: var(--ink-faint);
    letter-spacing: 0.12em;
    margin-bottom: 22px;
}

.hero .tagline {
    font-size: 16px;
    color: var(--ink-soft);
    margin: 0 0 8px;
    line-height: 1.6;
}

.hero .tagline-sub {
    font-size: 13px;
    color: var(--ink-faint);
    margin: 0 0 48px;
    letter-spacing: 0.06em;
}

.legal-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 320px;
    margin: 0 auto;
}

.legal-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.45);
    border: 1px solid var(--rule);
    border-radius: 12px;
    color: var(--ink);
    font-size: 15px;
    font-weight: 500;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.legal-link:hover {
    background: rgba(255, 255, 255, 0.75);
    border-color: var(--accent);
    color: var(--ink);
    transform: translateY(-1px);
}

.legal-link .arrow {
    color: var(--accent);
    font-size: 18px;
}

/* ---------- Document pages (privacy.html / terms.html) ---------- */

.doc-back {
    max-width: 760px;
    margin: 18px auto 0;
    padding: 0 24px;
}

.doc-back a {
    font-size: 13px;
    color: var(--ink-faint);
    border: none;
    letter-spacing: 0.04em;
}

.doc-back a:hover {
    color: var(--accent);
}

.doc {
    max-width: 760px;
    margin: 0 auto;
    padding: 36px 24px 80px;
}

.doc h1 {
    font-family: "New York", "Times New Roman", Georgia, "Songti SC", serif;
    font-weight: 600;
    font-size: 32px;
    margin: 0 0 8px;
    color: var(--ink);
    border-bottom: 1px solid var(--rule);
    padding-bottom: 18px;
}

.doc h2 {
    font-family: "New York", "Times New Roman", Georgia, "Songti SC", serif;
    font-weight: 600;
    font-size: 22px;
    margin: 42px 0 14px;
    color: var(--ink);
}

.doc h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 28px 0 10px;
    color: var(--ink);
}

.doc p {
    margin: 0 0 16px;
    color: var(--ink-soft);
}

.doc ul, .doc ol {
    padding-left: 1.6em;
    margin: 0 0 16px;
    color: var(--ink-soft);
}

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

.doc strong {
    color: var(--ink);
}

.doc blockquote {
    margin: 18px 0;
    padding: 12px 18px;
    background: rgba(201, 149, 72, 0.08);
    border-left: 3px solid var(--ochre);
    color: var(--ink-soft);
}

.doc blockquote p:last-child { margin-bottom: 0; }

.doc code {
    font-family: "SF Mono", "Menlo", Consolas, monospace;
    font-size: 0.92em;
    background: rgba(42, 24, 16, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--ink);
}

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

.doc th, .doc td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--rule);
}

.doc th {
    background: rgba(201, 149, 72, 0.1);
    font-weight: 600;
    color: var(--ink);
}

.doc td { color: var(--ink-soft); }

.doc hr {
    border: none;
    border-top: 1px solid var(--rule);
    margin: 36px 0;
}

/* ---------- Footer ---------- */

.site-footer {
    max-width: 760px;
    margin: 0 auto;
    padding: 32px 24px 48px;
    text-align: center;
    font-size: 12px;
    color: var(--ink-faint);
    border-top: 1px solid var(--rule);
    letter-spacing: 0.03em;
    line-height: 1.8;
}

.site-footer .footer-divider {
    margin: 0 8px;
    color: var(--rule);
}

.site-footer .icp-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 11px;
    color: var(--ink-faint);
    border: none;
    letter-spacing: 0.04em;
}

.site-footer .icp-link:hover {
    color: var(--ink-soft);
    border: none;
}

/* ---------- Responsive ---------- */

@media (max-width: 600px) {
    .hero { padding: 56px 20px 32px; }
    .hero-icon { width: 104px; height: 104px; border-radius: 23px; margin-bottom: 22px; }
    .hero h1 { font-size: 34px; }
    .hero .name-en { font-size: 15px; }
    .doc { padding: 28px 20px 60px; }
    .doc h1 { font-size: 26px; }
    .doc h2 { font-size: 19px; }
    .doc table { font-size: 13px; }
    .doc th, .doc td { padding: 8px 10px; }
}