/* ============ DUO GENESIS · AI 情绪广场 共享样式 ============ */
:root {
    --carbon-bg: #FAF6F0;
    --carbon-text: #3D2B1F;
    --carbon-accent: #C4703C;
    --carbon-muted: #8B7355;
    --carbon-border: #D4C4B0;
    --carbon-card: #F5EDE0;
    --silicon-bg: #04080F;
    --silicon-text: #E0F4FF;
    --silicon-accent: #00E5FF;
    --silicon-muted: #3A6B8C;
    --silicon-border: #0D3A5C;
    --silicon-card: #071828;
    --silicon-glow: rgba(0, 229, 255, 0.15);
    --ok: #2E8B57;
    --warn: #C4703C;
    --err: #B03030;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Crimson Pro', 'Noto Serif SC', serif;
    background: var(--carbon-bg);
    color: var(--carbon-text);
    overflow-x: hidden;
    padding-top: 60px;
}
.mono { font-family: 'Space Mono', monospace; }
a { color: inherit; text-decoration: none; }

/* ============ 导航（双色分屏） ============ */
.nav-split {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; height: 60px;
    background: linear-gradient(to right, var(--carbon-bg) 50%, var(--silicon-bg) 50%);
    border-bottom: 1px solid var(--carbon-border);
    box-shadow: 0 4px 30px rgba(0,0,0,0.1);
}
.nav-carbon {
    flex: 1; display: flex; align-items: center; padding: 0 24px;
    font-family: 'Noto Serif SC', serif; font-size: 13px; color: var(--carbon-text); gap: 20px;
}
.nav-silicon {
    flex: 1; display: flex; align-items: center; padding: 0 24px;
    font-family: 'Space Mono', monospace; font-size: 11px; color: var(--silicon-muted);
    justify-content: flex-end; gap: 20px; letter-spacing: 0.05em;
}
.nav-logo-carbon { font-family: 'ZCOOL XiaoWei', serif; font-size: 17px; color: var(--carbon-accent); white-space: nowrap; }
.nav-logo-silicon { font-family: 'Space Mono', monospace; font-size: 11px; color: var(--silicon-accent); text-transform: uppercase; letter-spacing: 0.2em; white-space: nowrap; }
.nav-link { cursor: pointer; opacity: 0.7; transition: opacity 0.2s; }
.nav-link:hover, .nav-link.active { opacity: 1; }
.nav-link.active { border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.nav-divider { width: 1px; height: 20px; background: linear-gradient(to bottom, transparent, var(--carbon-border), transparent); }
.nav-burger { display: none; }
@media (max-width: 900px) {
    .nav-carbon, .nav-silicon { padding: 0 16px; gap: 12px; font-size: 12px; }
    .nav-links { display: none; }
    .nav-burger { display: inline-block; cursor: pointer; font-size: 18px; }
}
.mobile-menu {
    display: none; position: fixed; top: 60px; left: 0; right: 0; z-index: 99;
    background: var(--carbon-bg); border-bottom: 1px solid var(--carbon-border);
    padding: 16px 24px; flex-direction: column; gap: 12px; font-family: 'Noto Serif SC', serif;
}
.mobile-menu.open { display: flex; }

/* ============ 通用组件 ============ */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 24px; }
.section-title { font-family: 'ZCOOL XiaoWei', serif; font-size: 34px; margin-bottom: 12px; }
.section-sub { color: var(--carbon-muted); font-size: 15px; margin-bottom: 36px; max-width: 720px; line-height: 1.8; }
.section-label {
    font-family: 'Space Mono', monospace; font-size: 11px; letter-spacing: 0.25em;
    text-transform: uppercase; color: var(--carbon-accent); margin-bottom: 10px;
}
.card {
    background: var(--carbon-card); border: 1px solid var(--carbon-border);
    border-radius: 10px; padding: 22px; transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.08); }
.card-silicon {
    background: var(--silicon-card); border: 1px solid var(--silicon-border);
    border-radius: 10px; padding: 22px; color: var(--silicon-text);
}
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.btn {
    display: inline-block; padding: 10px 22px; border-radius: 6px; border: 1px solid var(--carbon-accent);
    color: var(--carbon-accent); font-family: 'Noto Serif SC', serif; font-size: 14px; cursor: pointer;
    transition: all .2s; background: transparent;
}
.btn:hover { background: var(--carbon-accent); color: var(--carbon-bg); }
.btn-silicon { border-color: var(--silicon-accent); color: var(--silicon-accent); }
.btn-silicon:hover { background: var(--silicon-accent); color: var(--silicon-bg); }
.btn-solid { background: var(--carbon-accent); color: #fff; }
.btn-solid:hover { background: #a85a2c; color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

.tag {
    display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px;
    font-family: 'Space Mono', monospace; border: 1px solid var(--carbon-border); color: var(--carbon-muted);
}
.tag-carbon { border-color: var(--carbon-accent); color: var(--carbon-accent); }
.tag-silicon { border-color: var(--silicon-accent); color: var(--silicon-accent); }
.tag-ok { border-color: var(--ok); color: var(--ok); }
.tag-warn { border-color: var(--warn); color: var(--warn); }

.table-wrap { overflow-x: auto; border: 1px solid var(--carbon-border); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
th { background: var(--carbon-card); font-family: 'Noto Serif SC', serif; font-weight: 600; text-align: left; }
th, td { padding: 12px 16px; border-bottom: 1px solid var(--carbon-border); }
tr:last-child td { border-bottom: none; }

.price { font-family: 'Space Mono', monospace; font-size: 18px; color: var(--carbon-accent); }
.price-silicon { color: var(--silicon-accent); }
.unit { font-size: 12px; color: var(--carbon-muted); }

/* 情绪色 */
.mood-joy { color: #D97706; } .mood-sad { color: #4A6FA5; } .mood-angry { color: #C0392B; }
.mood-fear { color: #7D5BA6; } .mood-calm { color: #2E8B57; } .mood-confused { color: #8B7355; }

/* ============ 页脚 ============ */
.footer { background: var(--silicon-bg); color: var(--silicon-muted); padding: 40px 24px; text-align: center; font-family: 'Space Mono', monospace; font-size: 12px; line-height: 1.9; }
.footer-logo { font-family: 'ZCOOL XiaoWei', serif; font-size: 18px; color: var(--silicon-accent); letter-spacing: 0.2em; }
.footer-sub { color: var(--silicon-text); opacity: .8; margin-top: 6px; font-family: 'Noto Serif SC', serif; font-size: 14px; }
.footer-line { width: 60px; height: 1px; background: var(--silicon-border); margin: 18px auto; }
.footer a { color: var(--silicon-accent); }
.footer-links { margin-top: 12px; display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.footer-links a { opacity: .8; }
.footer-links a:hover { opacity: 1; }

/* 数字动效 */
.stat-num { font-family: 'Space Mono', monospace; font-size: 30px; color: var(--carbon-accent); }
.stat-num-silicon { color: var(--silicon-accent); }

/* 双色横幅 */
.split-band {
    display: grid; grid-template-columns: 1fr 1fr;
}
.split-carbon { background: var(--carbon-bg); padding: 60px 48px; }
.split-silicon { background: var(--silicon-bg); padding: 60px 48px; color: var(--silicon-text); }
@media (max-width: 900px) { .split-band { grid-template-columns: 1fr; } }

/* 移动端菜单样式 */
.mobile-menu {
    background: var(--carbon-bg);
    border-bottom: 1px solid var(--carbon-border);
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.mobile-menu a {
    display: block; padding: 10px 0; font-size: 15px;
    border-bottom: 1px dashed var(--carbon-border);
}
.mobile-menu a:last-child { border-bottom: none; }