/* ===================================================================== Contact widget — floating WeChat QR card. Self-contained: uses the site's brand vars where available (index.html) and falls back to hardcoded values on the standalone legal pages. State is driven by a class on (html.cw-collapsed) so a tiny inline head-script can set it pre-paint and avoid a flash. ===================================================================== */ .cw { /* anchor point at the top-right corner; children position from here */ position: fixed; top: 96px; right: 22px; z-index: 900; font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; letter-spacing: -0.011em; --cw-wechat: #07c160; --cw-wechat-dark: #06ad56; --cw-text: var(--text-primary, #0f172a); --cw-text-soft: var(--text-secondary, #475569); --cw-text-faint: var(--text-light, #94a3b8); --cw-hairline: var(--hairline, rgba(15, 23, 42, 0.08)); } /* ---- Collapsed: round WeChat bubble ---- */ .cw-bubble { position: absolute; top: 0; right: 0; display: none; align-items: center; justify-content: center; width: 54px; height: 54px; border: none; border-radius: 50%; cursor: pointer; background: linear-gradient(135deg, #07c160 0%, #06ad56 100%); color: #fff; box-shadow: 0 10px 28px rgba(7, 193, 96, 0.38), 0 2px 6px rgba(15, 23, 42, 0.10); transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s; } .cw-bubble:hover { transform: translateY(-2px) scale(1.04); box-shadow: 0 14px 34px rgba(7, 193, 96, 0.46); } .cw-bubble svg { width: 28px; height: 28px; } .cw-bubble-tip { position: absolute; bottom: -22px; right: 50%; transform: translateX(50%); white-space: nowrap; font-size: 11px; font-weight: 600; color: #fff; background: rgba(15, 23, 42, 0.82); padding: 3px 8px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity 0.2s; } .cw-bubble:hover .cw-bubble-tip { opacity: 1; } /* ---- Expanded: QR card ---- */ .cw-card { position: absolute; top: 0; right: 0; width: 212px; padding: 14px; background: rgba(255, 255, 255, 0.78); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border: 1px solid var(--cw-hairline); border-radius: 18px; box-shadow: 0 16px 48px rgba(15, 23, 42, 0.12), 0 4px 12px rgba(15, 23, 42, 0.06); transform-origin: top right; animation: cw-pop 0.28s cubic-bezier(0.34, 1.3, 0.64, 1); } @keyframes cw-pop { from { opacity: 0; transform: scale(0.92) translateY(-6px); } to { opacity: 1; transform: none; } } .cw-head { display: flex; align-items: center; gap: 9px; margin-bottom: 11px; } .cw-head-icon { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 9px; display: flex; align-items: center; justify-content: center; background: rgba(7, 193, 96, 0.12); color: var(--cw-wechat); } .cw-head-icon svg { width: 19px; height: 19px; } .cw-head-text { flex: 1; min-width: 0; line-height: 1.25; } .cw-head-text strong { display: block; font-size: 13.5px; font-weight: 700; color: var(--cw-text); } .cw-head-text span { display: block; font-size: 11px; color: var(--cw-text-faint); } .cw-min { flex: 0 0 auto; width: 26px; height: 26px; border: none; border-radius: 8px; cursor: pointer; background: rgba(15, 23, 42, 0.06); color: var(--cw-text-soft); display: flex; align-items: center; justify-content: center; transition: background 0.2s, color 0.2s; } .cw-min:hover { background: rgba(15, 23, 42, 0.12); color: var(--cw-text); } .cw-min svg { width: 15px; height: 15px; } .cw-qr { background: #fff; border-radius: 12px; padding: 8px; box-shadow: inset 0 0 0 1px var(--cw-hairline); } .cw-qr img { display: block; width: 100%; /* Personal WeChat "name card" QR is portrait (taller than wide), so show the whole thing instead of cropping to a square. */ height: 220px; object-fit: contain; border-radius: 8px; } .cw-caption { margin: 10px 2px 0; font-size: 12.5px; color: var(--cw-text-soft); text-align: center; line-height: 1.4; } .cw-note { margin: 4px 2px 0; font-size: 11px; color: var(--cw-text-faint); text-align: center; } /* ---- State: which face is visible ---- */ .cw-card { display: block; } .cw-bubble { display: none; } html.cw-collapsed .cw-card { display: none; } html.cw-collapsed .cw-bubble { display: flex; } /* ---- Responsive ---- */ @media (max-width: 768px) { .cw { top: 78px; right: 14px; } .cw-bubble { width: 50px; height: 50px; } .cw-bubble svg { width: 26px; height: 26px; } .cw-card { width: min(74vw, 220px); } .cw-qr img { height: 200px; } } @media (max-width: 380px) { .cw-card { width: min(82vw, 230px); } } /* ---- Reduced motion ---- */ @media (prefers-reduced-motion: reduce) { .cw-card, .cw-bubble, .cw-bubble-tip { animation: none !important; transition: none !important; } }