/* ========================================
   玄言生物 Villanelle Life Sciences
   极简白底风格
   ======================================== */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
                 Helvetica, Arial, sans-serif;
    background: #fff;
    color: #1a1a1a;
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ---- 主体 ---- */
.main {
    text-align: center;
    padding: 0 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ---- Logo ---- */
.logo-wrap {
    margin-bottom: 36px;
}

.logo {
    width: 170px;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(.25,.1,.25,1);
}

.logo:hover {
    transform: scale(1.05);
}

/* ---- 品牌名 ---- */
.brand-cn {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 12px;
    color: #111;
    margin-bottom: 8px;
}

.brand-en {
    font-size: .75rem;
    font-weight: 400;
    letter-spacing: 6px;
    color: #aaa;
    text-transform: uppercase;
    font-family: "SF Mono", "Fira Code", "Menlo", monospace;
    margin-bottom: 24px;
}

/* ---- 分割线 ---- */
.divider {
    width: 36px;
    height: 2px;
    background: #39B54A;
    border-radius: 1px;
    margin-bottom: 20px;
}

/* ---- 标语 ---- */
.tagline {
    font-size: .9rem;
    color: #999;
    letter-spacing: 4px;
    font-weight: 300;
}

/* ---- 页脚 ---- */
.footer {
    text-align: center;
    padding: 20px 24px;
    color: #ccc;
    font-size: .72rem;
    letter-spacing: 1px;
    flex-shrink: 0;
}