* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --white: #ffffff;
            --gray-50: #fafafa;
            --gray-100: #f5f5f5;
            --gray-200: #e5e5e5;
            --gray-300: #d4d4d4;
            --gray-400: #a3a3a3;
            --gray-500: #737373;
            --gray-600: #525252;
            --gray-700: #404040;
            --gray-800: #262626;
            --gray-900: #171717;
            --black: #000000;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Serif SC", serif;
            background: var(--white);
            color: var(--gray-900);
            line-height: 1.8;
            overflow-x: hidden;
            cursor: none;
        }
        .cursor {
            position: fixed;
            width: 20px;
            height: 20px;
            border: 1px solid var(--gray-400);
            border-radius: 50%;
            pointer-events: none;
            z-index: 9999;
            transition: transform 0.15s ease, width 0.2s ease, height 0.2s ease, border-color 0.2s ease;
            transform: translate(-50%, -50%);
        }
        .cursor.hover {
            width: 50px;
            height: 50px;
            border-color: var(--black);
            background: rgba(0,0,0,0.05);
        }
        .cursor-dot {
            position: fixed;
            width: 4px;
            height: 4px;
            background: var(--black);
            border-radius: 50%;
            pointer-events: none;
            z-index: 10000;
            transform: translate(-50%, -50%);
        }
        .ink-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            overflow: hidden;
        }
        .ink-cloud {
            position: absolute;
            background: radial-gradient(ellipse at center, rgba(0,0,0,0.02) 0%, transparent 70%);
            border-radius: 50%;
            animation: inkDrift 30s infinite ease-in-out;
        }
        .ink-cloud:nth-child(1) { width: 900px; height: 700px; top: -25%; right: -15%; animation-delay: 0s; }
        .ink-cloud:nth-child(2) { width: 700px; height: 600px; bottom: -20%; left: -20%; animation-delay: 10s; }
        .ink-cloud:nth-child(3) { width: 500px; height: 400px; top: 35%; left: -5%; animation-delay: 20s; }
        .ink-cloud:nth-child(4) { width: 600px; height: 500px; top: 55%; right: 5%; animation-delay: 5s; }
        @keyframes inkDrift {
            0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
            25% { transform: translate(60px, -40px) scale(1.15); opacity: 0.5; }
            50% { transform: translate(-30px, 50px) scale(0.9); opacity: 0.4; }
            75% { transform: translate(40px, 30px) scale(1.08); opacity: 0.6; }
        }
        .particle {
            position: fixed;
            pointer-events: none;
            z-index: 1;
            animation: float linear infinite;
            opacity: 0.4;
        }
        .particle::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: var(--gray-400);
            border-radius: 50% 0 50% 50%;
        }
        @keyframes float {
            0% { transform: translateY(-100px) rotate(0deg); opacity: 0; }
            10% { opacity: 0.3; }
            90% { opacity: 0.3; }
            100% { transform: translateY(100vh) rotate(1080deg); opacity: 0; }
        }
        .content { position: relative; z-index: 2; }
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            padding: 1.5rem 3rem;
            z-index: 100;
            background: rgba(255,255,255,0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: border-color 0.3s ease, padding 0.3s ease;
        }
        header.scrolled {
            border-bottom-color: var(--gray-200);
            padding: 1rem 3rem;
        }
        nav {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .brand {
            font-size: 1.125rem;
            font-weight: 400;
            letter-spacing: 0.3em;
            color: var(--black);
            text-decoration: none;
            position: relative;
            padding-bottom: 4px;
        }
        .brand::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--black);
            transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .brand:hover::after {
            width: 100%;
        }
        .nav-links {
            display: none;
        }
        .nav-links a {
            font-size: 0.8125rem;
            letter-spacing: 0.15em;
            color: var(--gray-500);
            text-decoration: none;
            position: relative;
            padding: 8px 0;
            transition: color 0.3s ease;
        }
        .nav-links a::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 1px;
            background: var(--black);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            transform: translateX(-50%);
        }
        .nav-links a:hover {
            color: var(--black);
        }
        .nav-links a:hover::before {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex !important;
            align-items: center;
            gap: .5rem;
            padding: 8px 0 !important;
            background: transparent !important;
            color: var(--gray-500) !important;
            text-decoration: none !important;
            font-size: .8125rem;
            letter-spacing: .15em;
            border: none !important;
            outline: none !important;
            box-shadow: none !important;
            position: static !important;
            transition: color 0.3s;
        }
        .nav-cta::before {
            display: none !important;
        }
        .nav-cta:hover {
            color: var(--black) !important;
        }
        .nav-cta:hover::before {
            display: none !important;
        }
        .nav-cta:active {
            color: var(--gray-500) !important;
        }
        .nav-cta:active::before {
            display: none !important;
        }
        /* 滚动提示 */
        .scroll-hint {
            position: absolute;
            bottom: 3rem;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            animation: fadeIn 1s ease 2.2s forwards;
        }
        
        .scroll-hint::before {
            content: '';
            display: block;
            width: 1px;
            height: 60px;
            background: linear-gradient(to bottom, var(--gray-400), transparent);
            margin: 0 auto 10px;
            animation: scrollLine 2s infinite;
        }
        
        @keyframes scrollLine {
            0% { transform: scaleY(0); transform-origin: top; }
            50% { transform: scaleY(1); transform-origin: top; }
            51% { transform-origin: bottom; }
            100% { transform: scaleY(0); transform-origin: bottom; }
        }
        
        /* 统计 */
        .stats {
            display: flex;
            justify-content: center;
            gap: 6rem;
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 1px solid var(--gray-200);
            opacity: 0;
            animation: fadeIn 1s ease 2s forwards;
        }
        
        .stat {
            text-align: center;
            cursor: default;
            transition: transform 0.3s ease;
        }
        
        .stat:hover {
            transform: translateY(-8px);
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 200;
            letter-spacing: 0.05em;
            color: var(--black);
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            font-size: 0.6875rem;
            letter-spacing: 0.3em;
            color: var(--gray-500);
            text-transform: uppercase;
        }
        
        .features {
            padding: 8rem 2rem;
            background: var(--gray-50);
            position: relative;
        }
        
        .features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }
        
        .section-label {
            font-size: 0.625rem;
            letter-spacing: 0.4em;
            color: var(--gray-400);
            text-transform: uppercase;
            margin-bottom: 1.5rem;
        }
        
        .section-title {
            font-size: 1.75rem;
            font-weight: 400;
            letter-spacing: 0.4em;
            color: var(--black);
            margin-bottom: 1rem;
        }
        
        .section-subtitle {
            font-size: 0.875rem;
            color: var(--gray-500);
            letter-spacing: 0.1em;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1px;
            max-width: 1100px;
            margin: 0 auto;
            background: var(--gray-200);
            position: relative;
        }
        
        .feature-card {
            padding: 4rem 2.5rem;
            background: var(--white);
            text-align: center;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.02) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .feature-card:hover::before {
            opacity: 1;
        }
        
        .feature-card.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 60px rgba(0,0,0,0.08);
            z-index: 1;
        }
        
        .feature-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--gray-200);
            border-radius: 50%;
            transition: all 0.4s ease;
        }
        
        .feature-card:hover .feature-icon {
            border-color: var(--gray-400);
            transform: rotate(360deg);
        }
        
        .feature-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--gray-700);
            stroke-width: 1;
            fill: none;
        }
        
        .feature-num {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            font-size: 0.625rem;
            letter-spacing: 0.2em;
            color: var(--gray-300);
        }
        
        .feature-title {
            font-size: 1.125rem;
            font-weight: 400;
            letter-spacing: 0.2em;
            margin-bottom: 1rem;
            color: var(--black);
        }
        
        .feature-desc {
            font-size: 0.875rem;
            color: var(--gray-600);
            line-height: 1.9;
            letter-spacing: 0.02em;
        }
        
        .agent {
            padding: 12rem 2rem;
            position: relative;
            overflow: hidden;
            background: var(--white);
        }
        
        .agent-bg {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            opacity: 0.03;
        }
        
        .agent-bg svg {
            width: 100%;
            height: 100%;
            animation: slowRotate 60s linear infinite;
        }
        
        @keyframes slowRotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .agent-inner {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .agent-inner.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .agent-seal {
            width: 80px;
            height: 80px;
            margin: 0 auto 2rem;
            border: 3px solid var(--gray-900);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 600;
            letter-spacing: 0.2em;
            color: var(--gray-900);
            position: relative;
            animation: sealStamp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
            opacity: 0;
            transform: scale(1.5);
        }
        
        .agent-inner.visible .agent-seal {
            opacity: 1;
            transform: scale(1);
        }
        
        @keyframes sealStamp {
            to { opacity: 1; transform: scale(1); }
        }
        
        .agent-seal::before {
            content: '';
            position: absolute;
            inset: 4px;
            border: 1px solid var(--gray-300);
        }
        
        .agent-label {
            font-size: 0.625rem;
            letter-spacing: 0.4em;
            color: var(--gray-400);
            text-transform: uppercase;
            margin-bottom: 1.5rem;
        }
        
        .agent-title {
            font-size: 2rem;
            font-weight: 300;
            letter-spacing: 0.3em;
            margin-bottom: 2rem;
            color: var(--black);
        }
        
        .agent-desc {
            font-size: 1rem;
            color: var(--gray-600);
            line-height: 2.2;
            margin-bottom: 3rem;
            letter-spacing: 0.05em;
        }
        
        .agent-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1.2rem 3rem;
            background: var(--white);
            color: var(--gray-900);
            text-decoration: none;
            font-size: 0.8125rem;
            letter-spacing: 0.2em;
            border: 1px solid var(--gray-800);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        .agent-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--black);
            transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 1;
        }
        .agent-btn i {
            position: relative;
            z-index: 2;
        }
        .agent-btn span {
            position: relative;
            z-index: 2;
        }
        .agent-btn svg {
            position: relative;
            z-index: 2;
        }
        .agent-btn i, .agent-btn svg {
            position: relative;
            z-index: 2;
        }
        .agent-btn span {
            position: relative;
            z-index: 2;
        }
        .agent-btn:hover {
            background: transparent;
            color: var(--white);
            border-color: var(--black);
        }
        .agent-btn:hover::before {
            left: 0;
        }
        .agent-btn:active {
            color: var(--white);
            border-color: var(--black);
        }
        .agent-btn:active::before {
            left: 0;
        }
        
        .agent-features {
            display: flex;
            justify-content: center;
            gap: 4rem;
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 1px solid var(--gray-200);
        }
        
        .agent-feature {
            text-align: center;
        }
        
        .agent-feature-num {
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--black);
            margin-bottom: 0.25rem;
        }
        
        .agent-feature-label {
            font-size: 0.6875rem;
            letter-spacing: 0.15em;
            color: var(--gray-500);
        }
        
        footer {
            padding: 5rem 2rem 4rem;
            text-align: center;
            border-top: 1px solid var(--gray-200);
            position: relative;
        }
        footer::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 1px;
            background: var(--black);
        }
        .footer-text {
            font-size: 0.75rem;
            letter-spacing: 0.2em;
            color: var(--gray-500);
        }
        @media (max-width: 768px) {
            body { cursor: auto; }
            .cursor, .cursor-dot { display: none; }
            header { padding: 1rem 1.5rem; }
            .nav-links { gap: 1.5rem; }
            .nav-links a { font-size: 0.75rem; }
            .hero { min-height: auto; padding: 5rem 1.5rem 3rem; justify-content: flex-start; }
            .hero-title { letter-spacing: 0.15em; }
            .stats { flex-direction: column; gap: 3rem; margin-top: 4rem; }
            .features { padding: 6rem 1.5rem; }
            .features-grid { grid-template-columns: 1fr; }
            .feature-card { padding: 3rem 2rem; }
            .agent { padding: 8rem 1.5rem; }
            .agent-bg { width: 300px; height: 300px; }
            .agent-title { font-size: 1.5rem; letter-spacing: 0.15em; }
            .agent-features { flex-direction: column; gap: 2rem; }
        }
    @media (prefers-reduced-motion: reduce) {
        *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
        .cursor, .cursor-dot, .ink-splash, .ink-line-particle, .particle { display: none !important; }
    }
        .hamburger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:8px;z-index:101;background:none;border:none}
        .hamburger span{display:block;width:22px;height:1.5px;background:var(--gray-700);transition:all .3s;transform-origin:center}
        .hamburger.active span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
        .hamburger.active span:nth-child(2){opacity:0;transform:scaleX(0)}
        .hamburger.active span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
        .mobile-menu{display:none;position:fixed;top:0;right:0;width:min(340px,88vw);height:100vh; height:100dvh;background:var(--white);z-index:99;flex-direction:column;padding:0;box-shadow:-8px 0 40px rgba(0,0,0,.08);transform:translateX(100%);transition:transform .4s cubic-bezier(.4,0,.2,1)}
        .mobile-menu.open{display:flex;transform:translateX(0)}
        .mobile-menu-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:98;opacity:0;transition:opacity .3s}
        .mobile-menu-overlay.open{opacity:1;display:block}
        .menu-header{padding:1.25rem 2rem;border-bottom:1px solid var(--gray-100);display:flex;align-items:center;justify-content:space-between}
        .menu-header .brand{font-size:1rem}
        .menu-close{background:none;border:none;cursor:pointer;padding:6px;color:var(--gray-400);transition:color .3s}
        .menu-close:hover{color:var(--black)}
        .menu-body{flex:1;overflow-y:auto;padding:1.5rem 2rem;min-height:0}
        .menu-section{margin-bottom:2rem}
        .menu-section-label{font-size:.625rem;letter-spacing:.3em;color:var(--gray-400);text-transform:uppercase;margin-bottom:.75rem;padding-left:.25rem}
        .menu-section a{display:flex;align-items:center;gap:.875rem;font-size:.9375rem;letter-spacing:.08em;color:var(--gray-700);text-decoration:none;padding:.875rem .75rem;border-radius:6px;transition:all .3s}
        .menu-section a i{font-size:1.125rem;color:var(--gray-400);width:20px;text-align:center;transition:color .3s;flex-shrink:0}
        .menu-section a:hover{background:var(--gray-50);color:var(--black)}
        .menu-section a:hover i{color:var(--black)}
        .menu-divider{height:1px;background:var(--gray-100);margin:1.5rem 0}
        .menu-cta-area{padding:1.5rem 2rem;border-top:1px solid var(--gray-100);margin-top:auto}
        .menu-cta{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.875rem 1.5rem;background:var(--white);color:var(--gray-900);text-decoration:none;font-size:.9375rem;letter-spacing:.1em;border:1px solid var(--gray-200);transition:all .4s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden;margin-bottom:.75rem}
        .menu-cta::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--black);transition:left .4s cubic-bezier(0.4,0,0.2,1);z-index:-1}
        .menu-cta:hover{color:var(--white);background:transparent}
        .menu-cta:hover::before{left:0}
        .menu-cta:active{color:var(--white);background:transparent}
        .menu-cta:active::before{left:0}
        .menu-cta i{font-size:1rem;position:relative;z-index:2}
        .menu-secondary{display:flex;gap:.75rem}
        .menu-secondary a{flex:1;display:flex;align-items:center;justify-content:center;gap:.375rem;padding:.625rem .75rem;border:1px solid var(--gray-200);color:var(--gray-600);text-decoration:none;font-size:.8125rem;letter-spacing:.05em;transition:all .3s;text-align:center}
        .menu-secondary a:hover{border-color:var(--gray-400);color:var(--black)}
        .menu-secondary a i{font-size:.875rem}
.menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            width: 100%;
            padding: .875rem 1.5rem;
            background: var(--white);
            color: var(--gray-900);
            text-decoration: none;
            font-size: .9375rem;
            letter-spacing: .1em;
            border: 1px solid var(--gray-200);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            margin-bottom: .75rem;
        }
        .menu-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--black);
            transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: -1;
        }
        .menu-btn:hover {
            color: var(--white) !important;
            background: transparent;
        }
        .menu-btn:hover::before {
            left: 0;
        }
        .menu-btn:active {
            color: var(--white) !important;
            background: transparent;
        }
        .menu-btn:active::before {
            left: 0;
        }
        .menu-btn i {
            font-size: 1rem;
            position: relative;
            z-index: 2;
        }
        .menu-btn span {
            position: relative;
            z-index: 2;
        }
        .promo-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.35);
            z-index: 200;
            display: none;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.4s ease;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }
        .promo-overlay.show {
            display: flex;
            opacity: 1;
        }
        .promo-overlay.hide {
            opacity: 0;
        }
        .promo-box {
            position: relative;
            width: min(480px, 90vw);
            max-height: 85vh;
            overflow-y: auto;
            background: var(--white);
            border: 1px solid var(--gray-300);
            padding: 2.5rem 2rem 2rem;
            text-align: center;
            box-shadow: 0 30px 80px rgba(0,0,0,0.12);
            transform: translateY(30px) scale(0.97);
            transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.45s ease;
            opacity: 0;
        }
        .promo-overlay.show .promo-box {
            transform: translateY(0) scale(1);
            opacity: 1;
        }
        .promo-overlay.hide .promo-box {
            transform: translateY(20px) scale(0.98);
            opacity: 0;
        }
        .promo-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: 1px solid var(--gray-200);
            border-radius: 50%;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--gray-400);
            transition: all 0.3s;
        }
        .promo-close:hover {
            border-color: var(--gray-900);
            color: var(--gray-900);
        }
        .promo-seal {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.5rem;
            border: 2.5px solid var(--gray-900);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.15em;
            color: var(--gray-900);
            position: relative;
        }
        .promo-seal::before {
            content: '';
            position: absolute;
            inset: 4px;
            border: 1px solid var(--gray-300);
            border-radius: 50%;
        }
        .promo-label {
            font-size: 0.625rem;
            letter-spacing: 0.4em;
            color: var(--gray-400);
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .promo-title {
            font-size: 1.25rem;
            font-weight: 300;
            letter-spacing: 0.25em;
            color: var(--black);
            margin-bottom: 0.2rem;
        }
        .promo-subtitle {
            font-size: 0.8125rem;
            color: var(--gray-500);
            letter-spacing: 0.1em;
            margin-bottom: 1.5rem;
        }
        .promo-divider {
            width: 60px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--gray-400), transparent);
            margin: 0 auto 1.5rem;
        }
        .promo-section-title {
            font-size: 0.6875rem;
            letter-spacing: 0.25em;
            color: var(--gray-700);
            text-align: left;
            margin-bottom: 0.5rem;
            padding-left: 0.75rem;
            border-left: 2px solid var(--gray-900);
        }
        .promo-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1.5rem;
            font-size: 0.8125rem;
            letter-spacing: 0.05em;
        }
        .promo-table th {
            padding: 0.5rem 0.5rem;
            background: var(--gray-50);
            color: var(--gray-700);
            font-weight: 400;
            letter-spacing: 0.1em;
            border: 1px solid var(--gray-200);
            text-align: center;
        }
        .promo-table td {
            padding: 0.5rem 0.5rem;
            color: var(--gray-700);
            border: 1px solid var(--gray-200);
            text-align: center;
        }
        .promo-table tr:hover td {
            background: var(--gray-50);
        }
        .promo-note {
            text-align: left;
            font-size: 0.75rem;
            color: var(--gray-500);
            line-height: 2;
            letter-spacing: 0.02em;
            margin-bottom: 0.35rem;
        }
        .promo-note strong {
            color: var(--gray-700);
            font-weight: 400;
        }
        .promo-footer {
            margin-top: 1.5rem;
            padding-top: 1rem;
            border-top: 1px solid var(--gray-100);
            font-size: 0.6875rem;
            color: var(--gray-400);
            line-height: 1.9;
            letter-spacing: 0.03em;
        }
        .promo-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 2.5rem;
            background: var(--white);
            color: var(--gray-900);
            text-decoration: none;
            font-size: 0.8125rem;
            letter-spacing: 0.2em;
            border: 1px solid var(--gray-800);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            margin-top: 1.5rem;
            cursor: pointer;
        }
        .promo-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--black);
            transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: -1;
        }
        .promo-btn i {
            position: relative;
            z-index: 2;
        }
        .promo-btn span {
            position: relative;
            z-index: 2;
        }
        .promo-btn i {
            position: relative;
            z-index: 2;
        }
        .promo-btn span {
            position: relative;
            z-index: 2;
        }
        .promo-btn:hover {
            color: var(--white);
            background: transparent;
        }
        .promo-btn:hover::before {
            left: 0;
        }
        .promo-btn:active {
            color: var(--white);
            border-color: var(--black);
        }
        .promo-btn:active::before {
            left: 0;
        }
        @media (max-width: 768px) {
            .promo-box {
                padding: 2rem 1.25rem 1.5rem;
                max-height: 90vh;
            }
            .promo-title {
                font-size: 1.1rem;
                letter-spacing: 0.15em;
            }
            .promo-table {
                font-size: 0.75rem;
            }
            .promo-table th,
            .promo-table td {
                padding: 0.4rem 0.375rem;
            }
        }
/* ===== 移动端 hamburger 显示 ===== */
@media(max-width:768px){.hamburger{display:flex}.mobile-menu{display:flex;flex-direction:column}.nav-links{display:none}}

/* ===== 移动端 hamburger 显示 ===== */


/* ---------- 弹窗7天忽略勾选框 ---------- */
.promo-ignore-line {
    margin-top: 1rem;
    padding: 0.75rem 0 0;
    border-top: 1px solid var(--gray-100);
    text-align: center;
}
.promo-ignore {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--gray-500);
    cursor: pointer;
    letter-spacing: 0.05em;
    user-select: none;
    transition: color 0.2s ease;
}
.promo-ignore:hover {
    color: var(--gray-700);
}
.promo-ignore input[type="checkbox"] {
    display: none;
}
.promo-checkmark {
    width: 14px;
    height: 14px;
    border: 1px solid var(--gray-400);
    border-radius: 2px;
    position: relative;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.promo-ignore input:checked + .promo-checkmark {
    background: var(--gray-900);
    border-color: var(--gray-900);
}
.promo-ignore input:checked + .promo-checkmark::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 5px;
    height: 8px;
    border: solid var(--white);
    border-width: 0 1.5px 1.5px 0;
    transform: rotate(45deg);
}

/* 桌面版汉堡菜单 */
@media (min-width: 769px) {
    .hamburger { display: flex !important; }
    .nav-links { display: none !important; }
    .mobile-menu { width: min(380px, 90vw); }
    .mobile-menu-overlay { z-index: 98; }
}