/* ============================================================
   食商宝 V4.0 — 专业B2B食品全品类AI智能供需对接平台
   配色：食商绿 #27ae60 | 琥珀金 #f39c12 | 珊瑚红 #e74c3c
   AI渐变 #667eea→#764ba2 | 背景#f5f6fa | 卡片#ffffff
   ============================================================ */

/* ========== CSS Variables ========== */
:root {
  --primary: #27ae60;
  --primary-light: #eafaf1;
  --primary-hover: #219a52;
  --primary-dark: #1e8449;
  --accent: #f39c12;
  --accent-light: #fef9e7;
  --accent-hover: #e67e22;
  --accent-dark: #d68910;
  --success: #27ae60;
  --danger: #e74c3c;
  --danger-light: #fdedec;
  --danger-hover: #c0392b;
  --ai-start: #667eea;
  --ai-end: #764ba2;
  --ai-gradient: linear-gradient(135deg, #667eea, #764ba2);
  --bg: #f5f6fa;
  --bg-alt: #eef0f5;
  --card: #ffffff;
  --text: #2c3e50;
  --text-secondary: #7f8c8d;
  --text-muted: #95a5a6;
  --border: #e1e5eb;
  --border-light: #f0f2f5;
  --divider: #ebeef2;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 250px;
  --right-panel-width: 280px;
  --header-height: 60px;
}

/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;background:var(--bg);color:var(--text);line-height:1.65;min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
input,select,textarea,button{font-family:inherit;font-size:inherit;line-height:inherit}
button{cursor:pointer;border:none;background:none}
table{border-collapse:collapse}

/* ========== Scrollbar ========== */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#c4cdd5;border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#a0abb5}

/* ========== Header ========== */
.header{background:var(--card);height:var(--header-height);box-shadow:var(--shadow-sm);display:flex;align-items:center;position:sticky;top:0;z-index:100;padding:0 24px}
.header-inner{max-width:1440px;margin:0 auto;width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0}
.logo{font-size:22px;font-weight:800;color:var(--primary);white-space:nowrap;letter-spacing:-0.5px;display:flex;align-items:center;gap:8px}
.logo::before{content:'🍽️';font-size:24px}
.hamburger{display:none;width:36px;height:36px;border-radius:var(--radius-sm);align-items:center;justify-content:center;font-size:22px;color:var(--text);transition:var(--transition);flex-shrink:0}
.hamburger:hover{background:var(--primary-light);color:var(--primary)}

/* ---- 顶部品牌信息条 ---- */
.top-info-bar{background:linear-gradient(90deg,#1a2520 0%,#27ae60 50%,#1a2520 100%);color:#fff;font-size:12.5px;padding:6px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.top-info-bar .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:24px;max-width:1440px;margin:0 auto;width:100%;padding:0 24px}
.top-info-left{opacity:.92}
.top-info-left strong{color:#ffd700;font-weight:700}
.top-info-right{display:flex;align-items:center;gap:18px}
.top-info-right a{color:#fff;text-decoration:none;opacity:.85;transition:opacity .2s;font-size:12.5px}
.top-info-right a:hover{opacity:1;color:#ffd700}
.top-info-ai{background:linear-gradient(135deg,#667eea,#764ba2) !important;padding:3px 12px !important;border-radius:12px !important;font-weight:600 !important;opacity:1 !important;color:#fff !important}

/* ---- 品牌 Logo（对标行业顶尖：图标+品牌名+副标语） ---- */
.logo-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-decoration:none;padding:6px 0;flex-shrink:0}
.logo-brand{display:flex;align-items:center;gap:8px;line-height:1}
.logo-dragon{font-size:28px;line-height:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.15))}
.logo-text{font-size:24px;font-weight:900;background:linear-gradient(135deg,#27ae60 0%,#f39c12 100%);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-1px}
.logo-en{font-size:11px;font-weight:700;color:#7f8c8d;letter-spacing:2px;background:#f5f6fa;padding:2px 6px;border-radius:3px;margin-left:2px}
.logo-slogan{font-size:11px;color:#7f8c8d;letter-spacing:1px;font-weight:500;line-height:1.2;margin-top:2px}

/* ---- Nav ---- */
.nav{display:flex;gap:2px;align-items:center}
.nav a{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);color:var(--text);font-size:14px;font-weight:500;transition:var(--transition);position:relative}
.nav a:hover{background:var(--primary-light);color:var(--primary)}
.nav a.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(39,174,96,0.25)}

/* ========== Unread Badge ========== */
.unread-badge{display:none;align-items:center;justify-content:center;min-width:20px;height:20px;border-radius:10px;background:var(--danger);color:#fff;font-size:11px;font-weight:700;padding:0 5px;position:absolute;top:-4px;right:-6px}

/* ========== User Area ========== */
.user-area{display:flex;align-items:center;gap:10px;flex-shrink:0}
.user-dropdown{position:relative;display:flex;align-items:center;gap:8px}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;cursor:pointer;transition:var(--transition);flex-shrink:0;box-shadow:0 2px 8px rgba(39,174,96,0.2)}
.avatar:hover{transform:scale(1.05);box-shadow:0 4px 14px rgba(39,174,96,0.3)}
.nav-member-badge{font-size:11px;padding:2px 10px;border-radius:12px;white-space:nowrap;font-weight:600}
.nav-member-badge.active{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff}
.nav-member-badge:not(.active){background:var(--bg-alt);color:var(--text-secondary)}
.dropdown-menu{display:none;position:absolute;right:0;top:calc(100% + 8px);background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:6px 0;min-width:180px;z-index:200;border:1px solid var(--border)}
.dropdown-menu::before{content:'';position:absolute;top:-6px;right:14px;width:12px;height:12px;background:var(--card);transform:rotate(45deg);border-left:1px solid var(--border);border-top:1px solid var(--border)}
.dropdown-menu.show{display:block;animation:dropIn 0.15s ease}
.dropdown-menu a{display:flex;align-items:center;gap:8px;padding:10px 18px;font-size:14px;transition:var(--transition)}
.dropdown-menu a:hover{background:var(--primary-light);color:var(--primary)}
@keyframes dropIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ========== Mobile Nav Overlay ========== */
.mobile-nav-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.4);z-index:150;display:none}
.mobile-nav-overlay.show{display:block}
.mobile-nav-panel{position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--card);z-index:151;transform:translateX(-100%);transition:var(--transition-slow);overflow-y:auto;box-shadow:var(--shadow-lg)}
.mobile-nav-panel.show{transform:translateX(0)}
.mobile-nav-panel .mobile-nav-header{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
.mobile-nav-panel .mobile-nav-header button{font-size:20px;color:var(--text-secondary);padding:4px 8px}
.mobile-nav-panel .nav-a{display:block;padding:12px 20px;font-size:14px;font-weight:500;color:var(--text);transition:var(--transition);border-left:3px solid transparent}
.mobile-nav-panel .nav-a:hover,.mobile-nav-panel .nav-a.active{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary)}

/* ========== Buttons ========== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 22px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;border:none;cursor:pointer;transition:var(--transition);text-decoration:none;white-space:nowrap;line-height:1}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(39,174,96,0.25)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 14px rgba(39,174,96,0.35)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 4px rgba(39,174,96,0.2)}
.btn-primary:disabled{opacity:0.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(243,156,18,0.25)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:var(--danger-hover)}
.btn-ai{background:var(--ai-gradient);color:#fff;box-shadow:0 2px 8px rgba(102,126,234,0.25)}
.btn-ai:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(102,126,234,0.35)}
.btn-sm{padding:6px 14px;font-size:13px;border-radius:var(--radius-xs)}
.btn-lg{padding:12px 28px;font-size:16px}
.btn-block{width:100%;justify-content:center;padding:12px}
.btn-icon{width:36px;height:36px;padding:0;border-radius:50%}

/* ========== Layouts ========== */
.container-flex{max-width:1280px;margin:0 auto;padding:24px;display:flex;gap:24px}
.container-col{max-width:960px;margin:0 auto;padding:24px;display:flex;flex-direction:column;gap:20px}

/* === 3-Column Home Layout === */
.layout-3col{max-width:1440px;margin:0 auto;padding:24px;display:flex;gap:24px;align-items:flex-start}
.layout-3col .sidebar{width:var(--sidebar-width);flex-shrink:0;position:sticky;top:84px}
.layout-3col .main-content{flex:1;min-width:0}
.layout-3col .sidebar-right{width:var(--right-panel-width);flex-shrink:0;position:sticky;top:84px;display:flex;flex-direction:column;gap:16px}

/* ========== Sidebar Card ========== */
.sidebar-card{background:var(--card);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light)}
.sidebar-card h3{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:6px;color:var(--text)}
.sidebar-card h3::before{content:'';width:4px;height:18px;background:var(--primary);border-radius:2px}

/* ========== Category Tree ========== */
.category-tree{max-height:70vh;overflow-y:auto}
.category-tree li{display:flex;align-items:center;gap:10px;padding:9px 12px;cursor:pointer;border-radius:var(--radius-sm);font-size:13px;transition:var(--transition);margin-bottom:1px;border-left:3px solid transparent;color:var(--text)}
.category-tree li:hover{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary)}
.category-tree li.active{background:var(--primary);color:#fff;border-left-color:var(--primary);font-weight:600}
.cat-group-label{font-size:11px;font-weight:800;color:var(--text-muted);padding:12px 12px 6px;text-transform:uppercase;letter-spacing:0.5px;cursor:default;display:flex;align-items:center;gap:4px;border-left-color:transparent !important}
.cat-group-label:hover{background:none !important;color:var(--text-muted) !important}

/* Category Icons */
.cat-icon-svg{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:8px;overflow:hidden;transition:transform 0.2s}
.cat-icon-svg svg{width:36px;height:36px}
.cat-icon-svg span{font-size:16px}
.category-tree li:hover .cat-icon-svg{transform:scale(1.08)}
.category-tree li.active .cat-icon-svg{filter:brightness(1.1)}
.cert-badge{display:inline-block;background:linear-gradient(135deg,#FFD54F,#FFB300);color:#7A5800;font-size:10px;padding:1px 5px;border-radius:3px;margin-left:4px;font-weight:600;vertical-align:middle}

/* ========== Search Bar ========== */
.search-bar{display:flex;gap:10px;margin-bottom:20px;align-items:center;flex-wrap:wrap}
.search-bar input{flex:1;padding:11px 18px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;transition:var(--transition);background:var(--card);min-width:200px}
.search-bar input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(39,174,96,0.1)}
.filter-check{font-size:13px;display:inline-flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap;color:var(--text-secondary);user-select:none}
.filter-check input[type="checkbox"]{accent-color:var(--primary);width:16px;height:16px}

/* ========== AI Banner ========== */
.ai-banner{background:var(--ai-gradient);color:#fff;padding:14px 22px;border-radius:var(--radius-md);margin-bottom:20px;display:flex;align-items:center;gap:12px;font-size:14px;font-weight:500;box-shadow:0 4px 16px rgba(102,126,234,0.2);position:relative;overflow:hidden}
.ai-banner::after{content:'';position:absolute;top:-50%;right:-20px;width:120px;height:120px;background:rgba(255,255,255,0.08);border-radius:50%}
.ai-banner .dot{width:10px;height:10px;background:#fff;border-radius:50%;flex-shrink:0;position:relative;z-index:1}
.ai-banner .dot::after{content:'';position:absolute;inset:-4px;border-radius:50%;border:2px solid rgba(255,255,255,0.5);animation:ping 2s infinite}
@keyframes ping{0%{transform:scale(1);opacity:1}100%{transform:scale(2);opacity:0}}

/* ========== Section Headers ========== */
.section{margin-bottom:28px}
.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.section-header h2{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}
.section-header h2 .section-icon{font-size:22px}
.section-header a{font-size:13px;color:var(--primary);font-weight:500;transition:var(--transition)}
.section-header a:hover{color:var(--primary-hover);text-decoration:underline}

/* High-value section with gold accent */
.section.section-gold .section-header h2{color:var(--accent-dark)}
.section.section-gold .card{border:1.5px solid var(--accent);box-shadow:0 2px 12px rgba(243,156,18,0.1)}

/* ========== Cards ========== */
.card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--border-light)}
.card-gold{border:1.5px solid var(--accent);box-shadow:0 2px 12px rgba(243,156,18,0.1)}

/* ========== List Items ========== */
.list-item{padding:16px 20px;border-bottom:1px solid var(--divider);display:flex;justify-content:space-between;align-items:flex-start;gap:16px;cursor:pointer;transition:var(--transition)}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:var(--primary-light)}
.list-item-title{font-weight:600;font-size:15px;margin-bottom:6px;color:var(--text);line-height:1.4}
.list-item-meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.list-item-sub{font-size:12px;color:var(--text-secondary);margin-top:6px;display:flex;align-items:center;gap:8px}
.list-item-right{text-align:right;flex-shrink:0;font-size:13px;color:var(--text-secondary);display:flex;flex-direction:column;align-items:flex-end;gap:4px}

/* Urgent highlight */
.list-item.urgent{border-left:3px solid var(--danger);background:#fff5f5}
.list-item.urgent:hover{background:#feedec}

/* Boosted highlight */
.list-item.boosted{border-left:3px solid var(--ai-start);background:#f8f9ff}
.list-item.boosted:hover{background:#f0f2ff}

/* ========== Tags ========== */
.tag{display:inline-flex;align-items:center;gap:3px;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.tag-primary{background:var(--primary-light);color:var(--primary)}
.tag-success{background:#e8f8f5;color:var(--success)}
.tag-danger{background:var(--danger-light);color:var(--danger)}
.tag-urgent{background:var(--danger);color:#fff;animation:urgentPulse 2s infinite}
.tag-lock{background:var(--bg);color:var(--text-muted)}
.tag-gold{background:var(--accent-light);color:var(--accent);border:1px solid var(--accent)}
.tag-boost{background:var(--ai-gradient);color:#fff;font-size:11px}
.tag-verified{background:var(--primary-light);color:var(--primary);font-size:11px}
.tag-pin{background:var(--accent-light);color:var(--accent);font-size:11px}
.tag-flagship{background:linear-gradient(135deg,var(--accent),#e6a800);color:#fff;font-size:11px}
@keyframes urgentPulse{0%,100%{opacity:1}50%{opacity:0.75}}

/* ========== Platform Stats Widget ========== */
.platform-stats{display:flex;flex-direction:column;gap:10px}
.stat-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;padding:6px 0;border-bottom:1px solid var(--divider);color:var(--text-secondary)}
.stat-row:last-child{border-bottom:none}
.stat-row strong{color:var(--primary);font-size:18px;font-weight:800}

/* ========== Membership Widget ========== */
.membership-widget{display:flex;flex-direction:column;gap:8px}
.membership-highlight{background:var(--primary-light);color:var(--primary);padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;text-align:center;cursor:pointer;transition:var(--transition)}
.membership-highlight:hover{background:var(--primary);color:#fff}
.membership-highlight.gold{background:var(--accent-light);color:var(--accent-dark);border:1px solid var(--accent)}
.membership-highlight.gold:hover{background:var(--accent);color:#fff}

/* ========== Event Mini ========== */
.event-mini{padding:8px 0;border-bottom:1px solid var(--divider);cursor:pointer;transition:var(--transition)}
.event-mini:last-child{border-bottom:none}
.event-mini:hover{color:var(--primary)}
.event-mini-date{font-size:12px;color:var(--primary);font-weight:600}
.event-mini-title{font-size:13px;font-weight:500;margin-top:2px}

/* ========== Ad Banner ========== */
.ad-banner{background:var(--ai-gradient);color:#fff;padding:12px 20px;border-radius:var(--radius-md);margin-bottom:16px;font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition);text-align:center}
.ad-banner:hover{opacity:0.9;transform:translateY(-1px);box-shadow:var(--shadow-md)}

/* ========== Cert Banner ========== */
.cert-banner{background:linear-gradient(135deg,#fef9e7 0%,#fdf2d0 100%);border:1.5px solid var(--accent);border-radius:var(--radius-md);padding:14px 20px;display:flex;align-items:center;gap:10px;font-size:14px;color:#7a6214;margin-bottom:20px}
.cert-banner .cert-icon{width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.cert-banner strong{color:#8b6914}

/* ========== Demand / Product Card (for grid) ========== */
.demand-grid{display:grid;grid-template-columns:1fr;gap:0}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}

/* ========== Product Card ========== */
.product-card{background:var(--card);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);transition:var(--transition);cursor:pointer}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--primary)}
.product-card .product-name{font-weight:700;font-size:16px;margin-bottom:8px}
.product-card .product-cat{font-size:12px;color:var(--text-secondary);margin-bottom:8px}
.product-card .product-price{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:8px}
.product-card .product-supplier{font-size:13px;color:var(--text-secondary)}
.product-card .product-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}

/* ========== Tags Row ========== */
.tags-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}

/* ========== Detail Page ========== */
.detail-title{font-size:22px;font-weight:800;margin-bottom:10px;line-height:1.3}
.detail-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.detail-fields{margin:20px 0;border-top:1px solid var(--divider);padding-top:20px;display:flex;flex-direction:column;gap:16px}
.detail-field{display:flex;gap:28px}
.detail-label{font-size:13px;color:var(--text-muted);font-weight:500;min-width:80px;flex-shrink:0}
.detail-value{font-size:15px;font-weight:500;color:var(--text);word-break:break-word}
.detail-contact{margin-top:20px;padding:20px;background:var(--primary-light);border-radius:var(--radius-md);border:1px dashed var(--primary)}
.contact-blur{filter:blur(4px);user-select:none;opacity:0.6}
.detail-actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}

/* ========== Quote Card ========== */
.quote-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:18px;margin-bottom:12px;transition:var(--transition);position:relative}
.quote-card:hover{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.quote-card.quote-pinned{border-color:var(--accent);background:var(--accent-light)}
.quote-card.quote-pinned::before{content:'📌 置顶';position:absolute;top:-1px;right:16px;background:var(--accent);color:#fff;font-size:10px;padding:2px 8px;border-radius:0 0 6px 6px;font-weight:600}
.quote-header{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.quote-body{margin-bottom:12px}
.quote-price{font-size:24px;font-weight:800;color:var(--primary)}
.quote-detail{font-size:13px;color:var(--text-secondary);margin-top:4px}
.quote-note{font-size:13px;color:#666;margin-top:6px;font-style:italic;padding:8px 12px;background:var(--bg);border-radius:var(--radius-xs)}
.quote-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--divider)}

/* ========== Member Badge ========== */
.member-badge-sm{font-size:10px;padding:2px 8px;border-radius:10px;background:var(--bg);color:var(--text-muted);font-weight:600}
.member-badge-sm.standard{background:var(--primary-light);color:var(--primary)}
.member-badge-sm.premium{background:#e8f8f5;color:var(--primary)}
.member-badge-sm.flagship,.member-badge-sm.vip{background:var(--accent-light);color:var(--accent-dark)}

/* ========== Event Card ========== */
.event-card{background:var(--card);border-radius:var(--radius-md);padding:20px;margin-bottom:14px;box-shadow:var(--shadow-sm);cursor:pointer;transition:var(--transition);border:1px solid var(--border-light);position:relative;overflow:hidden}
.event-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary);border-radius:2px 0 0 2px}
.event-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--primary)}
.event-date{font-size:13px;color:var(--primary);font-weight:700}
.event-title{font-size:17px;font-weight:700;margin:6px 0}
.event-location{font-size:13px;color:var(--text-secondary);margin-bottom:4px}
.event-desc{font-size:13px;color:#666;margin-top:8px;line-height:1.6}

/* ========== Chat ========== */
.chat-container{max-width:680px;margin:0 auto;background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;display:flex;flex-direction:column;height:70vh;max-height:700px}
.chat-header{padding:16px 20px;border-bottom:1px solid var(--border);font-weight:600;font-size:16px;display:flex;align-items:center;gap:12px;background:var(--card)}
.chat-box{flex:1;overflow-y:auto;padding:20px;background:var(--bg)}
.chat-msg{margin-bottom:14px;display:flex;gap:10px;animation:msgIn 0.2s ease}
.chat-msg.self{flex-direction:row-reverse}
.chat-msg .bubble{max-width:72%;padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.6;word-break:break-word;position:relative}
.chat-msg:not(.self) .bubble{background:var(--card);box-shadow:var(--shadow-xs);border-top-left-radius:4px}
.chat-msg.self .bubble{background:var(--primary);color:#fff;border-top-right-radius:4px}
.chat-msg .msg-name{font-size:11px;color:var(--text-muted);margin-bottom:4px}
.chat-msg.self .msg-name{text-align:right}
.chat-input-bar{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--border);background:var(--card)}
.chat-input-bar input{flex:1;padding:11px 16px;border:1.5px solid var(--border);border-radius:24px;font-size:14px;transition:var(--transition);outline:none}
.chat-input-bar input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(39,174,96,0.1)}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ========== Quote Bubble in Chat ========== */
.quote-bubble{background:var(--accent-light);border:1px solid var(--accent);border-radius:var(--radius-sm);padding:12px;font-size:13px;line-height:1.6}

/* ========== System Message ========== */
.system-msg{background:var(--accent-light);color:#7a6214;padding:10px 16px;border-radius:var(--radius-sm);font-size:13px;text-align:center;margin-bottom:14px;font-weight:500}
.system-msg.warning{background:var(--danger-light);color:var(--danger)}

/* ========== Quick Quote Form ========== */
.quick-quote-form{background:var(--primary-light);border-radius:var(--radius-md);padding:14px;margin:8px 16px;border:1.5px solid var(--primary)}
.quick-quote-row{display:flex;gap:8px;margin-bottom:8px}
.quick-quote-row:last-child{margin-bottom:0}
.quick-quote-row input{flex:1;padding:9px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:13px;transition:var(--transition);background:var(--card)}
.quick-quote-row input:focus{border-color:var(--primary);outline:none}

/* ========== Chat User Item ========== */
.chat-user-item{padding:16px 20px;border-bottom:1px solid var(--divider);display:flex;align-items:center;gap:14px;cursor:pointer;transition:var(--transition);position:relative}
.chat-user-item:hover{background:var(--primary-light)}
.chat-user-item:last-child{border-bottom:none}
.chat-user-item .chat-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex-shrink:0}
.chat-user-item .chat-info{flex:1;min-width:0}
.chat-user-item .chat-name{font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px}
.chat-user-item .chat-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}

/* ========== Stats Grid ========== */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--card);border-radius:var(--radius-md);padding:24px 20px;box-shadow:var(--shadow-sm);text-align:center;border:1px solid var(--border-light);transition:var(--transition)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stat-card .stat-num{font-size:30px;font-weight:800;color:var(--primary);margin-bottom:4px}
.stat-card .stat-label{font-size:13px;color:var(--text-secondary);font-weight:500}

/* ========== Log Panel ========== */
.log-panel{background:#1a1a2e;color:#00ff88;padding:20px;border-radius:var(--radius-md);font-family:'Consolas','Courier New',monospace;font-size:13px;max-height:400px;overflow-y:auto;line-height:1.8;border:1px solid #333}

/* ========== User Center ========== */
.user-info-card{background:var(--card);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-md);text-align:center;max-width:520px;margin:0 auto;border:1px solid var(--border-light)}
.avatar-lg{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:32px;font-weight:800;margin:0 auto 20px;box-shadow:var(--shadow-md)}
.user-info-card h3{font-size:22px;font-weight:700;margin-bottom:6px}
.user-type-text{font-size:14px;color:var(--text-secondary);margin-bottom:8px}
.member-badge{display:inline-flex;align-items:center;gap:4px;margin-top:8px;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:700}
.member-badge.active{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 2px 8px rgba(243,156,18,0.3)}
.member-badge.inactive{background:var(--bg);color:var(--text-muted)}
.user-stats{display:flex;justify-content:center;gap:48px;margin-top:24px;padding-top:24px;border-top:1px solid var(--divider)}
.user-stats .num{font-size:24px;font-weight:800;color:var(--primary)}
.user-stats .label{font-size:12px;color:var(--text-muted);margin-top:4px}

/* ========== Tab Bar ========== */
.tab-bar{display:flex;gap:6px;background:var(--card);border-radius:var(--radius-md);padding:6px;box-shadow:var(--shadow-sm);overflow-x:auto;border:1px solid var(--border-light)}
.tab-btn{flex:1;padding:10px 14px;border:none;background:transparent;font-size:14px;font-weight:600;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:var(--transition);white-space:nowrap;min-width:fit-content}
.tab-btn:hover{background:var(--primary-light);color:var(--primary)}
.tab-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 6px rgba(39,174,96,0.2)}

/* ========== Forms ========== */
.form-card{max-width:580px;margin:40px auto;background:var(--card);padding:36px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border-light)}
.form-card h2{font-size:24px;font-weight:800;margin-bottom:28px;text-align:center;color:var(--text)}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:var(--text)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;transition:var(--transition);background:var(--card);color:var(--text)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(39,174,96,0.1)}
.form-group textarea{resize:vertical;min-height:80px}
.form-footer{text-align:center;margin-top:24px;font-size:14px;color:var(--text-secondary)}
.form-footer a{color:var(--primary);font-weight:600}
.form-footer a:hover{text-decoration:underline}
.error-msg{font-size:12px;color:var(--danger);margin-top:4px;display:none}
.error-msg.show{display:block}
input.error,select.error{border-color:var(--danger) !important;box-shadow:0 0 0 3px rgba(231,76,60,0.1) !important}
.form-check{display:flex;align-items:center;gap:8px;margin-bottom:18px;font-size:14px;color:var(--text-secondary)}
.form-check input[type="checkbox"]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer}

/* ========== Empty & Loading ========== */
.empty-state{text-align:center;padding:56px 24px;color:var(--text-muted)}
.empty-state .spinner{margin-bottom:12px}
.empty-state p{font-size:14px}
.empty-state a{color:var(--primary);font-weight:600}
.spinner{display:inline-block;width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 0.7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ========== Page Header (Sub-page) ========== */
.page-header{background:var(--card);padding:0 28px;height:56px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xs);position:relative;border-bottom:1px solid var(--border-light)}
.page-header h2{font-size:17px;font-weight:700;color:var(--text)}
.back-link{position:absolute;left:24px;font-size:14px;color:var(--primary);font-weight:500;display:flex;align-items:center;gap:4px;transition:var(--transition)}
.back-link:hover{color:var(--primary-hover)}

/* ========== Toast ========== */
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%) translateY(-120px);padding:14px 28px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;z-index:9999;transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);box-shadow:var(--shadow-lg);pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast-success{background:var(--primary);color:#fff}
.toast-error{background:var(--danger);color:#fff}
.toast-warning{background:var(--accent);color:#fff}

/* ========== Modal ========== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn 0.2s ease}
.modal-box{background:var(--card);border-radius:var(--radius-lg);padding:32px;max-width:500px;width:100%;box-shadow:var(--shadow-lg);max-height:85vh;overflow-y:auto;animation:scaleIn 0.2s ease}
.modal-box h3{font-size:20px;font-weight:700;margin-bottom:12px}
.modal-box p{font-size:14px;color:var(--text-secondary);line-height:1.7}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}

/* ========== Upgrade Plan Cards (in modal) ========== */
.upgrade-plans{display:flex;gap:12px;margin-top:16px}
.plan-card{flex:1;padding:20px;border:2px solid var(--border);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:var(--transition);background:var(--card);position:relative}
.plan-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.plan-card.plan-hot{border-color:var(--accent);box-shadow:0 2px 12px rgba(243,156,18,0.1)}
.plan-name{font-weight:700;font-size:16px;margin-bottom:6px}
.plan-price{font-size:28px;font-weight:800;color:var(--primary)}
.plan-price span{font-size:13px;font-weight:400;color:var(--text-muted)}
.plan-features{font-size:12px;color:var(--text-secondary);line-height:1.9;text-align:left;margin-top:10px}

/* ========== Membership Page Plans Grid ========== */
.plans-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:16px}
.plans-grid.plans-3col{grid-template-columns:repeat(3,1fr)}
.plans-grid .plan-card{background:var(--card);border:2px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;box-shadow:var(--shadow-sm);transition:var(--transition);position:relative;text-align:center}
.plans-grid .plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.plans-grid .plan-card.plan-hot{border-color:var(--primary);box-shadow:0 4px 20px rgba(39,174,96,0.08)}
.plans-grid .plan-card.plan-hot::before{content:'🔥 热门';position:absolute;top:-1px;right:20px;background:var(--primary);color:#fff;font-size:11px;padding:3px 12px;border-radius:0 0 8px 8px;font-weight:700}
.plans-grid .plan-card.plan-flagship{border-color:var(--accent);box-shadow:0 4px 20px rgba(243,156,18,0.1)}
.plans-grid .plan-card.plan-flagship::before{content:'👑 旗舰';position:absolute;top:-1px;right:20px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;font-size:11px;padding:3px 12px;border-radius:0 0 8px 8px;font-weight:700}
.plan-header{margin-bottom:18px}
.plan-header .plan-name{font-weight:700;font-size:18px}
.plan-header .plan-price{font-size:32px;font-weight:800;color:var(--primary)}
.plan-header .plan-price span{font-size:14px;font-weight:400;color:var(--text-muted)}
.plans-grid .plan-features{list-style:none;font-size:13px;color:var(--text-secondary);line-height:2.2;margin:20px 0;text-align:left}
.plans-grid .plan-features li{padding:2px 0}
.plans-grid .plan-features li::before{content:'✓ ';color:var(--primary);font-weight:800}
.plan-current{margin-top:14px;font-size:13px;color:var(--primary);font-weight:700;padding:8px 0;border-top:1px solid var(--divider)}

/* ========== Payment Items ========== */
.payment-item{padding:14px 0;border-bottom:1px solid var(--divider);display:flex;justify-content:space-between;align-items:center}
.payment-item:last-child{border-bottom:none}
.price-tag{font-weight:800;color:var(--primary);font-size:17px}
.pay-status{font-size:12px;padding:2px 10px;border-radius:12px;font-weight:600}
.pay-status.paid{background:var(--primary-light);color:var(--primary)}
.pay-status.pending{background:var(--bg);color:var(--text-muted)}

/* ========== Admin Layout ========== */
.admin-layout{max-width:1280px;margin:0 auto;padding:24px;display:flex;gap:24px;min-height:calc(100vh - 56px)}
.admin-sidebar{width:200px;flex-shrink:0;background:#1e2a3a;border-radius:var(--radius-md);padding:20px 0;box-shadow:var(--shadow-md)}
.admin-sidebar h3{color:#8899aa;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:1px;padding:8px 20px 12px}
.admin-nav{display:flex;flex-direction:column;gap:1px}
.admin-nav a{display:block;padding:11px 20px;font-size:14px;color:#8899aa;transition:var(--transition);border-left:3px solid transparent;font-weight:500}
.admin-nav a:hover{background:rgba(255,255,255,0.04);color:#d0d8e0;border-left-color:#4a5568}
.admin-nav a.active{background:rgba(39,174,96,0.15);color:var(--primary);border-left-color:var(--primary);font-weight:600}
.admin-content{flex:1;min-width:0}
.admin-content h3{font-size:18px;font-weight:700;margin-bottom:20px;color:var(--text)}

/* ========== Admin Table ========== */
.admin-table{width:100%;border-collapse:collapse;font-size:13px;background:var(--card);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}
.admin-table thead{background:var(--bg)}
.admin-table th{padding:12px 16px;text-align:left;font-weight:700;color:var(--text-secondary);font-size:12px;text-transform:uppercase;letter-spacing:0.3px;border-bottom:2px solid var(--border)}
.admin-table td{padding:10px 16px;border-bottom:1px solid var(--divider);vertical-align:middle}
.admin-table tr:last-child td{border-bottom:none}
.admin-table tr:hover td{background:var(--primary-light)}
.admin-table input,.admin-table select{padding:5px 10px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:13px;background:var(--card)}
.admin-table input:focus,.admin-table select:focus{outline:none;border-color:var(--primary)}

/* ========== Funnel Chart ========== */
.funnel-container{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.funnel-step{text-align:center}
.funnel-bar{background:linear-gradient(90deg,var(--primary),var(--primary-light));color:var(--text);padding:18px 24px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;transition:var(--transition);text-align:left;display:flex;justify-content:space-between}
.funnel-bar:hover{opacity:0.85}

/* ========== Section Divider ========== */
.section-divider{height:1px;background:var(--divider);margin:28px 0}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .layout-3col .sidebar-right{width:240px}
  .layout-3col .sidebar{width:220px}
  .plans-grid.plans-3col{grid-template-columns:1fr}
}

@media (max-width: 768px) {
  /* Header */
  .header{padding:0 16px}
  .header .container{flex-wrap:wrap}
  .hamburger{display:flex}
  .nav{display:none}
  .logo{font-size:18px}

  /* Layouts */
  .layout-3col{flex-direction:column;padding:16px;gap:16px}
  .layout-3col .sidebar{display:none;width:100%;position:static}
  .layout-3col .sidebar-right{width:100%;position:static}
  .container-flex{flex-direction:column;padding:16px}
  .container-flex .sidebar{width:100%}

  /* Cards & Sections */
  .section{margin-bottom:20px}
  .section-header h2{font-size:16px}
  .list-item{flex-direction:column;gap:8px;padding:14px 16px}
  .list-item-right{text-align:left;flex-direction:row;align-items:center;gap:8px}

  /* Forms */
  .form-card{margin:20px;padding:24px}
  .form-card h2{font-size:20px}

  /* Stats */
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat-card{padding:18px 16px}
  .stat-card .stat-num{font-size:24px}

  /* Plans */
  .plans-grid,.plans-grid.plans-3col{grid-template-columns:1fr;gap:14px}
  .upgrade-plans{flex-direction:column}

  /* Admin */
  .admin-layout{flex-direction:column;padding:16px}
  .admin-sidebar{width:100%;border-radius:var(--radius-sm);padding:12px 0}
  .admin-nav{flex-direction:row;overflow-x:auto;gap:2px;padding:0 8px}
  .admin-nav a{white-space:nowrap;padding:8px 14px;font-size:13px;border-left:none;border-bottom:2px solid transparent}
  .admin-nav a.active{border-bottom-color:var(--primary);border-left-color:transparent}

  /* Tab */
  .tab-bar{overflow-x:auto}
  .tab-btn{font-size:13px;padding:8px 12px}

  /* Detail */
  .detail-field{flex-direction:column;gap:4px}
  .detail-label{min-width:auto}

  /* Product grid */
  .product-grid{grid-template-columns:1fr}

  /* User center */
  .user-info-card{padding:24px}
  .user-stats{gap:28px}
  .user-stats .num{font-size:20px}

  /* Page header */
  .back-link{position:static;margin-right:auto}
  .page-header{justify-content:flex-start;gap:12px;padding:0 16px}
  .page-header h2{font-size:15px}

  /* Demand grid */
  .demand-grid{grid-template-columns:1fr}

  /* Chat */
  .chat-container{height:60vh;max-height:none;border-radius:var(--radius-sm)}
  .chat-msg .bubble{max-width:85%}
}

@media (max-width: 480px) {
  .header{padding:0 12px}
  .logo{font-size:16px}
  .logo::before{font-size:20px}
  .btn{padding:8px 14px;font-size:13px}
  .btn-sm{padding:5px 10px;font-size:12px}

  .layout-3col{padding:10px;gap:12px}
  .container-flex{padding:10px}
  .container-col{padding:10px}

  .section-header h2{font-size:15px}
  .section-header a{font-size:12px}

  .search-bar{gap:8px}
  .search-bar input{padding:10px 14px;font-size:13px}
  .search-bar .btn{padding:10px 16px}

  .ai-banner{font-size:13px;padding:12px 16px}

  .sidebar-card{padding:14px}
  .sidebar-card h3{font-size:14px}

  .stats-grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .stat-card{padding:14px 12px}
  .stat-card .stat-num{font-size:22px}

  .form-card{margin:12px;padding:20px}
  .form-card h2{font-size:18px}
  .form-group label{font-size:13px}

  .list-item{padding:12px 14px}
  .list-item-title{font-size:14px}

  .detail-title{font-size:18px}

  .tab-btn{font-size:12px;padding:8px 10px}

  .tag{font-size:11px;padding:2px 8px}

  .chat-container{border-radius:0;height:100vh;max-height:none}
  .chat-box{padding:12px}

  .plan-price{font-size:22px}
  .plan-name{font-size:14px}

  .admin-layout{padding:10px}
  .admin-nav a{font-size:12px;padding:6px 10px}
  .admin-table{font-size:12px}
  .admin-table th,.admin-table td{padding:8px 10px}

  .user-info-card{padding:20px}
  .avatar-lg{width:64px;height:64px;font-size:26px}
  .user-stats{gap:20px}
}

/* ========== Print ========== */
@media print {
  .header,.sidebar,.sidebar-right,.page-header,.tab-bar,.detail-actions{display:none !important}
  .layout-3col,.container-flex{display:block;padding:0}
  .card{box-shadow:none;border:none;break-inside:avoid}
  body{background:#fff;color:#000}
}