/* HANAHANA Studio — 全站共享样式
   Header / Footer / 基础重置，供 About / Archive / Art High School / Channel / Consulting / Member 六个页面共同引用
   页面专属样式仍保留在各自 <style> 内，不要把这里的规则复制回页面文件 */

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scrollbar-gutter: stable; }

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #000;
    background-color: #fff;
}

/* Header */
.header { width: 100%; border-bottom: 0.5px solid #000; }
.header-grid { display: grid; grid-template-columns: 2fr 1fr; }
.header-left {
    display: flex;
    align-items: center;
    padding: 40px 40px 40px 150px;
    border-right: 0.5px solid #000;
}
.logo { display: none; width: 288px; height: 72px; color: #000; text-decoration: none; }
.mobile-nav-bar { display: none; }
.header-right { display: flex; flex-direction: column; }
.nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 40px;
    border-bottom: 0.5px solid #000;
    text-decoration: none;
    color: #000;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.nav-item:last-child { border-bottom: none; }
.nav-item:hover { background-color: #F16527; color: #fff; }
.nav-label { font-size: 16px; font-weight: 200; line-height: 1.8; display: grid; }
.nav-en, .nav-cn { grid-area: 1 / 1; transition: opacity 0.3s ease; }
.nav-cn { opacity: 0; }
.nav-item:hover .nav-en { opacity: 0; }
.nav-item:hover .nav-cn { opacity: 1; }
.nav-arrow svg { width: 16px; height: 16px; transition: transform 0.3s ease; }
.nav-item:hover .nav-arrow svg { transform: translateX(4px); }
.nav-item.current .nav-arrow svg { transform: rotate(90deg); }
.nav-item.current:hover .nav-arrow svg { transform: rotate(90deg) translateX(4px); }

/* Footer */
.footer {
    width: 100%;
    background: #000;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 80px 40px 40px;
    gap: 60px;
}
.footer-logo { display: block; width: 200px; height: 50px; }
.footer-info { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.footer-info p { font-size: 16px; font-weight: 200; line-height: 1.4; color: rgba(255,255,255,0.6); }
.footer-info .footer-name { font-size: 30px; font-weight: 600; line-height: 1.8; letter-spacing: 0.1em; color: #fff; margin-bottom: 8px; }
.footer-info .footer-copyright { font-size: 14px; font-weight: 200; line-height: 1.4; letter-spacing: 0.1em; color: rgba(255,255,255,0.3); margin-top: 8px; }

@media (max-width: 768px) {
    .header-grid { grid-template-columns: 1fr; }
    .header-left { border-right: none; border-bottom: 0.5px solid #000; padding: 24px 20px; justify-content: center; aspect-ratio: 2 / 1; }
    .logo { width: 100%; height: auto; }

    .mobile-nav-bar { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; }
    .mobile-nav-title { font-size: 24px; font-weight: 600; line-height: 1.4; }
    .mobile-nav-toggle { display: flex; flex-direction: column; justify-content: center; gap: 5px; width: 28px; height: 22px; background: none; border: none; padding: 0; cursor: pointer; }
    .mobile-nav-toggle span { display: block; width: 100%; height: 2px; background: #000; }

    .header-right { display: none; }
    .header-right.open { display: flex; border-top: 0.5px solid #000; }
    .nav-item { padding: 12px 20px; }
    .header-right.open .nav-item { background-color: #F16527; color: #fff; }

    .footer-info p { font-size: 14px; }
    .footer-info .footer-name { font-size: 24px; }
}

@media (max-width: 480px) {
    .logo { width: 60%; height: auto; margin: 0 auto; }
    .header-left { padding: 48px 16px; }
    .header-right { padding: 0; }
}