/* ============================================
   COMMON STYLES - Shared across all pages
   ============================================ */

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-surface: #161616;
    --bg-card: #1c1c1c;
    --bg-card-hover: #222222;
    --accent: #b8985a;
    --accent-light: #d4b87a;
    --accent-dark: #96793e;
    --text-primary: #e8e4dc;
    --text-secondary: #a8a298;
    --text-muted: #a8a298;
    --border: #2a2a28;
    --border-light: #3a3a38;
    --white: #ffffff;
    --font-display: sans-serif;
    --font-body: sans-serif;
    --font-serif: serif;
    --font-mono: monospace;
    --header-h: 80px;
    --breadcrumb-h: 44px;
    --container: 1280px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); background: var(--bg-primary); color: var(--text-primary); line-height: 1.7; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); cursor: pointer; }
a:hover { color: var(--accent-light); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
::selection { background: var(--accent); color: var(--bg-primary); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; letter-spacing: 0.02em; text-transform: uppercase; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1a1a1a, #222); color: var(--text-muted); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; }

/* ============================================
   HEADER — 默认不透明
   ============================================ */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h); background: rgba(10,10,10,0.97); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.logo { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.logo-mark { height: 40px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.logo-mark img { height: 100%; width: auto; object-fit: contain; display: block; }
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav a, .nav-has-mega { font-family: var(--font-display); font-size: 1.05rem; font-weight: 500; color: var(--text-secondary); letter-spacing: 0.14em; text-transform: uppercase; position: relative; padding: 6px 0; transition: color var(--transition); display: flex; align-items: center; gap: 6px; cursor: pointer; text-decoration: none; }
.main-nav a::after, .nav-has-mega::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width var(--transition); }
.main-nav a:hover, .main-nav a.active, .nav-has-mega:hover, .nav-has-mega.active { color: var(--text-primary); }
.main-nav a:hover::after, .main-nav a.active::after, .nav-has-mega:hover::after, .nav-has-mega.active::after { width: 100%; }
.nav-has-mega .mega-arrow { font-size: 0.55rem; transition: transform var(--transition); margin-top: 2px; }
.nav-has-mega:hover .mega-arrow { transform: rotate(180deg); }
.main-nav .nav-has-mega a.no-line{ text-decoration: none;  }
.main-nav .nav-has-mega a.no-line::after{ height: 0; bottom: 0;}
.nav-icons { display: flex; align-items: center; gap: 16px; }
.nav-icon-btn { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; color: var(--text-secondary); transition: color var(--transition); }
.nav-icon-btn:hover { color: var(--accent); }
.nav-icon-btn svg { width: 20px; height: 20px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-primary); transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   MEGAMENU
   ============================================ */
.mega-menu { position: fixed; top: var(--header-h); left: 0; right: 0; z-index: 2000; background: var(--bg-secondary); border-bottom: 1px solid var(--border); box-shadow: 0 20px 60px rgba(0,0,0,0.6); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity 0.3s, transform 0.3s, visibility 0.3s; pointer-events: none; }
.mega-menu.open { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.mega-menu-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 200px 1fr; min-height: 380px; }
.mega-left { padding: 24px 0; border-right: 1px solid var(--border); }
.mega-cat-btn { display: flex; align-items: center; gap: 14px; width: 100%; padding: 13px 20px; background: transparent; border: none; cursor: pointer; font-family: var(--font-display); font-size: 0.88rem; font-weight: 500; letter-spacing: 0.06em; color: var(--text-muted); transition: all var(--transition); text-align: left; border-left: 3px solid transparent; border-radius: 0 6px 6px 0; }
.mega-cat-btn:hover { background: rgba(255,255,255,0.03); color: var(--text-secondary); }
.mega-cat-btn.active { color: var(--accent); border-left-color: var(--accent); background: rgba(184,152,90,0.06); }
.mega-cat-icon { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-light); font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; color: var(--text-muted); background: var(--bg-card); flex-shrink: 0; transition: all var(--transition); border-radius: 6px; }
.mega-cat-btn.active .mega-cat-icon { border-color: var(--accent-dark); color: var(--accent); background: rgba(184,152,90,0.12); }
.mega-cat-btn a{ font-size: 0.85rem}
.mega-right { padding: 24px 28px; }
.mega-sub-list { display: none; }
.mega-sub-list.active { display: block; animation: megaFade 0.25s ease; }
@keyframes megaFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.mega-sub-title { font-family: var(--font-display); font-size: 0.80rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.mega-sub-title::before { content: ''; width: 3px; height: 12px; background: var(--accent); }
.mega-sub-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px 16px; }
.mega-sub-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; transition: all var(--transition); border: 1px solid transparent; cursor: pointer; color: inherit; border-radius: 6px; }
.mega-sub-item:hover { background: rgba(184,152,90,0.05); border-color: var(--border); color: inherit; }
.mega-sub-item-img { width: 44px; height: 44px; background: var(--bg-card); border: 1px solid var(--border); flex-shrink: 0; overflow: hidden; border-radius: 6px; }
.mega-sub-item-info { flex: 1; min-width: 0; }
.mega-sub-item-name { font-size: 0.82rem; font-weight: 500; color: var(--text-primary); line-height: 1.3; margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mega-sub-item-desc { font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-muted); letter-spacing: 0.06em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mega-sub-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.mega-sub-tags a.mega-sub-tag { display: inline-flex; align-items: center; font-size: 0.75rem; color: var(--text-secondary); padding: 6px 14px; border: 1px solid var(--border-light); border-radius: 100px; transition: all var(--transition); }
.mega-sub-tags a.mega-sub-tag:hover { border-color: var(--accent-dark); color: var(--accent-light); background: rgba(184,152,90,0.06); }
.mega-sub-cta { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-family: var(--font-display); font-size: 0.75rem; color: var(--accent); letter-spacing: 0.12em; text-transform: uppercase; transition: gap var(--transition); }
.mega-sub-cta:hover { gap: 10px; }

/* ============================================
   HEADER & MEGAMENU — MOBILE
   ============================================ */
@media (max-width: 900px) {
    .site-header { height: 64px; background: rgba(10,10,10,0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
    .site-header.scrolled { background: rgba(10,10,10,0.97); }
    .page-index .site-header,
    .page-store-list .site-header { background: rgba(10,10,10,0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom-color: var(--border); }
    .page-index .site-header.scrolled,
    .page-store-list .site-header.scrolled { background: rgba(10,10,10,0.97); }
    .logo { font-size: 1rem; gap: 8px; }
    .logo-mark { height: 32px; }
    .nav-icons { gap: 12px; }
    .main-nav { position: fixed; top: 64px; left: 0; right: 0; background: rgba(10,10,10,0.97); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); flex-direction: column; padding: 0; gap: 0; transform: translateY(-120%); transition: transform var(--transition); border-bottom: 1px solid var(--border); max-height: calc(100vh - 64px); overflow-y: auto; }
    .main-nav.open { transform: translateY(0); }
    .main-nav > a, .main-nav > .nav-has-mega { padding: 16px 24px; font-size: 0.95rem; border-bottom: 1px solid rgba(42,42,40,0.4); }
    .main-nav > a.active { color: var(--accent); }
    .main-nav > a.active::after, .main-nav > .nav-has-mega.active::after { display: none; }
    .nav-toggle { display: flex; }
    .mega-menu { position: static; box-shadow: none; transform: none; opacity: 1; visibility: visible; pointer-events: auto; border: none; display: none; background: var(--bg-surface); }
    .mega-menu.mobile-open { display: block; animation: megaMobileOpen 0.3s ease; }
    @keyframes megaMobileOpen { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
    .mega-menu-inner { grid-template-columns: 1fr; min-height: auto; }
    .mega-left { border-right: none; border-bottom: 1px solid var(--border); padding: 0; display: flex; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .mega-left::-webkit-scrollbar { display: none; }
    .mega-cat-btn { flex: 0 0 auto; padding: 12px 16px; border-left: none; border-bottom: 3px solid transparent; border-radius: 0; white-space: nowrap; flex-direction: column; gap: 4px; text-align: center; }
    .mega-cat-btn.active { border-left-color: transparent; border-bottom-color: var(--accent); background: rgba(184,152,90,0.08); }
    .mega-cat-icon { width: 28px; height: 28px; font-size: 0.7rem; }
    .mega-cat-name { font-size: 0.7rem; }
    .mega-right { padding: 12px 16px; }
    .mega-sub-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .mega-sub-item { padding: 10px 8px; gap: 8px; border: 1px solid var(--border); border-radius: 8px; }
    .mega-sub-item-img { width: 36px; height: 36px; border-radius: 6px; }
    .mega-sub-item-name { font-size: 0.78rem; }
    .mega-sub-item-desc { font-size: 0.55rem; }
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); letter-spacing: 0.05em; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--border-light); }

/* ============================================
   BUTTONS
   ============================================ */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 0.85rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; padding: 14px 32px; border: 1px solid transparent; transition: all var(--transition); }
.btn-primary { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-light); color: var(--bg-primary); letter-spacing: 0.18em; }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-outline-dark { background: transparent; color: var(--text-primary); border-color: var(--border-light); }
.btn-outline-dark:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================
   SECTION BASE
   ============================================ */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-secondary); }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .section-tag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.25em; text-transform: uppercase; display: block; margin-bottom: 12px; }
.section-header h2 { color: var(--white); margin-bottom: 16px; }
.section-header p { color: var(--text-secondary); max-width: 560px; margin: 0 auto; font-size: 0.95rem; }
.section-line { width: 48px; height: 2px; background: var(--accent); margin: 20px auto 0; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer { background: var(--bg-secondary); border-top: 1px solid var(--border); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { color: var(--text-muted); font-size: 0.84rem; line-height: 1.8; margin-top: 16px; max-width: 320px; }
.footer-col h4 { font-family: var(--font-display); font-size: 0.8rem; font-weight: 600; color: var(--text-primary); letter-spacing: 0.15em; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 0.84rem; color: var(--text-muted); transition: color var(--transition); }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding: 28px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-bottom-left { display: flex; flex-direction: column; gap: 4px; }
.footer-bottom p { font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.04em; line-height: 1.8; }
.footer-bottom p strong { color: var(--text-secondary); font-weight: 500; }
.footer-filing { font-size: 0.65rem; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.03em; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.footer-filing a { color: var(--text-muted); transition: color var(--transition); }
.footer-filing a:hover { color: var(--accent); }
.footer-filing-sep { color: var(--border-light); margin: 0 2px; }
.footer-records { font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.04em; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.footer-records .record-icon { display: inline-block; vertical-align: middle; opacity: 0.5; }
.footer-records .record-divider { color: var(--border); margin: 0 2px; }
.footer-records a { color: var(--text-muted); transition: color var(--transition); }
.footer-records a:hover { color: var(--accent); }
.footer-contact { display: flex; align-items: center; gap: 32px; }
.footer-contact-item { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); letter-spacing: 0.04em; transition: color var(--transition); }
.footer-contact-item:hover { color: var(--accent); }
.footer-contact-item svg { flex-shrink: 0; opacity: 0.6; transition: opacity var(--transition); }
.footer-contact-item:hover svg { opacity: 1; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px 20px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-brand p { font-size: 0.78rem; margin-top: 10px; }
    .footer-col h4 { font-size: 0.72rem; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); letter-spacing: 0.1em; }
    .footer-col ul li { margin-bottom: 0; }
    .footer-col ul a { display: block; padding: 8px 0; font-size: 0.78rem; color: var(--text-muted); }
    .footer-col ul a:active { color: var(--accent); }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
    .footer-bottom p { font-size: 0.65rem; line-height: 1.6; }
    .footer-contact { flex-direction: column; gap: 8px; }
    .footer-contact-item { font-size: 0.72rem; }
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px; }
.pagination a, .pagination span { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; font-family: var(--font-mono); font-size: 0.8rem; border: 1px solid var(--border); color: var(--text-muted); transition: all var(--transition); }
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .active { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); }

/* ============================================
   ANIMATIONS & NOISE
   ============================================ */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.anim-fade-up { opacity: 0; animation: fadeUp 0.7s ease forwards; }
.anim-delay-1 { animation-delay: 0.15s; }
.anim-delay-2 { animation-delay: 0.3s; }
.anim-delay-3 { animation-delay: 0.45s; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
body::after { content: ''; position: fixed; inset: 0; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E"); opacity: 0.03; pointer-events: none; z-index: 9999; }