/* ===== 全局重置 & 基础 ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
            background: #0b0e1a;
            color: #e8edf5;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 14, 26, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 212, 255, 0.08);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .navbar.scrolled {
            background: rgba(11, 14, 26, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #00d4ff, #0088ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-logo i {
            -webkit-text-fill-color: #00d4ff;
            font-size: 24px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            font-weight: 500;
        }

        .nav-links a {
            position: relative;
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s ease;
            padding: 4px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #00d4ff, #0088ff);
            transition: width 0.3s ease;
        }

        .nav-links a:hover {
            color: #fff;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: #fff;
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: linear-gradient(135deg, #00d4ff, #0077ff);
            color: #fff !important;
            padding: 6px 20px !important;
            border-radius: 30px;
            font-weight: 600;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 212, 255, 0.25);
        }

        .nav-cta::after {
            display: none !important;
        }

        .nav-cta:hover {
            transform: scale(1.04);
            box-shadow: 0 6px 25px rgba(0, 212, 255, 0.4);
            color: #fff !important;
        }

        /* 汉堡菜单（移动端） */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #e8edf5;
            border-radius: 4px;
            transition: 0.3s ease;
        }

        .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);
        }

        /* ===== 英雄区 ===== */
        .hero {
            padding: 140px 0 70px;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 100, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
                #0b0e1a;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(0, 212, 255, 0.06);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 100, 255, 0.03) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.2);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            color: #00d4ff;
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            margin-right: 6px;
        }

        .hero h1 {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #ffffff 20%, #88ddff 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero .subtitle {
            font-size: 26px;
            font-weight: 600;
            color: rgb(255 136 136 / 90%);
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .hero .subtitle span {
            color: #00d4ff;
            -webkit-text-fill-color: #00d4ff;
        }

        .hero .desc {
            max-width: 720px;
            margin: 0 auto 20px;
            font-size: 17px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
        }

        .hero .desc strong {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
        }

        .hero .highlight-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px 28px;
            margin-top: 24px;
            padding: 16px 0 4px;
        }

        .hero .highlight-list li {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero .highlight-list li i {
            color: #00d4ff;
            font-size: 16px;
        }

        /* ===== 通用内容区块 ===== */
        .content-block {
            padding: 70px 0 60px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .content-block:last-of-type {
            border-bottom: none;
        }

        .content-block .block-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff, #88ddff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .content-block .block-sub {
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 16px;
            max-width: 700px;
            margin: 0 auto 30px;
        }

        .content-block .block-body {
            max-width: 860px;
            margin: 0 auto;
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            text-align: center;
            line-height: 1.9;
        }

        .content-block .block-body strong {
            color: rgba(255, 255, 255, 0.92);
        }

        .content-block .block-body .highlight {
            color: #00d4ff;
        }

        .content-block .block-body .highlight-gold {
            color: #ffd700;
        }

        /* 特色图标行 */
        .feature-icons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px 50px;
            margin-top: 28px;
        }

        .feature-icons .icon-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }

        .feature-icons .icon-item i {
            font-size: 26px;
            color: #00d4ff;
        }

        .feature-icons .icon-item .social-icon {
            font-size: 30px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

        .feature-icons .icon-item .social-icon:hover {
            color: #00d4ff;
        }

        /* ===== 安全稳定区块 ===== */
        .security-block {
            background: radial-gradient(ellipse at 50% 30%, rgba(0, 212, 255, 0.04) 0%, transparent 60%);
        }

        .protocol-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px 40px;
            margin: 24px 0 10px;
        }

        .protocol-badges .badge {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.5px;
        }

        .protocol-badges .badge i {
            margin-right: 8px;
            color: #00d4ff;
        }

        .protocol-badges .badge.v2ray-badge {
            border-color: rgba(0, 212, 255, 0.2);
            background: rgba(0, 212, 255, 0.06);
        }

        /* ===== 套餐说明 ===== */
        .plan-notice {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 24px 32px;
            margin-bottom: 40px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.9;
            max-width: 960px;
            margin-left: auto;
            margin-right: auto;
        }

        .plan-notice strong {
            color: rgba(255, 255, 255, 0.85);
        }

        .plan-notice .highlight {
            color: #ffd700;
        }

        /* ===== 套餐卡片网格 ===== */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 单个套餐卡片 ===== */
        .plan-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 28px 22px 22px;
            transition: transform 0.3s ease, box-shadow 0.4s ease, border-color 0.3s ease;
            backdrop-filter: blur(4px);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .plan-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #00d4ff, #0088ff);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .plan-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.2);
            box-shadow: 0 16px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 212, 255, 0.03);
        }

        .plan-card:hover::before {
            opacity: 1;
        }

        .plan-card .recommend-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            color: #0b0e1a;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            box-shadow: 0 4px 15px rgba(247, 151, 30, 0.3);
        }

        .plan-card .price {
            font-size: 38px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            line-height: 1.1;
        }

        .plan-card .price .currency {
            font-size: 22px;
            font-weight: 600;
            color: #00d4ff;
            margin-right: 2px;
        }

        .plan-card .traffic {
            font-size: 20px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .plan-card .traffic span {
            color: rgba(255, 255, 255, 0.4);
            font-weight: 400;
            font-size: 14px;
        }

        .plan-card .meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 14px;
            padding: 12px 0 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            margin-bottom: 14px;
        }

        .plan-card .meta .vip {
            font-size: 13px;
            font-weight: 700;
            background: rgba(0, 212, 255, 0.12);
            color: #00d4ff;
            padding: 2px 14px;
            border-radius: 20px;
            border: 1px solid rgba(0, 212, 255, 0.15);
        }

        .plan-card .meta .vip.vip2 {
            background: rgba(255, 215, 0, 0.1);
            color: #ffd700;
            border-color: rgba(255, 215, 0, 0.15);
        }

        .plan-card .meta .vip.vip3 {
            background: rgba(168, 85, 247, 0.15);
            color: #a855f7;
            border-color: rgba(168, 85, 247, 0.2);
        }

        .plan-card .meta .badge-unlimited {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.04);
            padding: 2px 12px;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .plan-card .meta .badge-node {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            background: rgba(0, 212, 255, 0.06);
            padding: 2px 12px;
            border-radius: 20px;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }

        .plan-card .meta .badge-node i {
            margin-right: 4px;
            color: #00d4ff;
        }

        .plan-card .meta .days {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-left: auto;
        }

        .plan-card .meta .days i {
            margin-right: 4px;
            color: rgba(255, 255, 255, 0.3);
        }

        .plan-card .features {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 4px;
            flex: 1;
        }

        .plan-card .features li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 4px 0;
        }

        .plan-card .features li i {
            color: #00d4ff;
            font-size: 14px;
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .plan-card .btn-buy {
            display: block;
            width: 100%;
            margin-top: 18px;
            padding: 10px 0;
            text-align: center;
            background: linear-gradient(135deg, #00d4ff, #0077ff);
            border: none;
            border-radius: 30px;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
        }

        .plan-card .btn-buy:hover {
            transform: scale(1.02);
            box-shadow: 0 6px 30px rgba(0, 212, 255, 0.35);
        }

        .plan-card .btn-buy:active {
            transform: scale(0.97);
        }

        .plan-card.vip2-card {
            border-color: rgba(255, 215, 0, 0.08);
        }

        .plan-card.vip2-card .price .currency {
            color: #ffd700;
        }

        .plan-card.vip2-card .features li i {
            color: #ffd700;
        }

        .plan-card.vip2-card .btn-buy {
            background: linear-gradient(135deg, #f7971e, #ffd200);
            box-shadow: 0 4px 20px rgba(247, 151, 30, 0.25);
            color: #0b0e1a;
        }

        .plan-card.vip2-card .btn-buy:hover {
            box-shadow: 0 6px 30px rgba(247, 151, 30, 0.4);
        }

        .plan-card.vip3-card {
            border-color: rgba(168, 85, 247, 0.1);
        }

        .plan-card.vip3-card .price .currency {
            color: #a855f7;
        }

        .plan-card.vip3-card .features li i {
            color: #a855f7;
        }

        .plan-card.vip3-card .btn-buy {
            background: linear-gradient(135deg, #8b5cf6, #a855f7);
            box-shadow: 0 4px 20px rgba(168, 85, 247, 0.25);
            color: #fff;
        }

        .plan-card.vip3-card .btn-buy:hover {
            box-shadow: 0 6px 30px rgba(168, 85, 247, 0.4);
        }

        .plan-card .note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            line-height: 1.5;
            font-style: italic;
        }

        /* ===== 选择服务类型 ===== */
        .service-types {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px 40px;
            margin: 20px 0 10px;
        }

        .service-types .service-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 14px 28px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            transition: border-color 0.3s, background 0.3s;
            cursor: default;
        }

        .service-types .service-item i {
            font-size: 20px;
            color: #00d4ff;
        }

        .service-types .service-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
        }

        /* ===== 底部信息 ===== */
        .footer-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 30px 50px;
            margin-top: 40px;
            padding: 30px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .footer-actions .action-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 10px 32px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.3s;
            cursor: pointer;
        }

        .footer-actions .action-btn:hover {
            background: rgba(0, 212, 255, 0.06);
            border-color: rgba(0, 212, 255, 0.2);
            color: #fff;
        }

        .footer-actions .action-btn.primary {
            background: linear-gradient(135deg, #00d4ff, #0077ff);
            border-color: transparent;
            color: #fff;
            box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
        }

        .footer-actions .action-btn.primary:hover {
            box-shadow: 0 6px 25px rgba(0, 212, 255, 0.35);
            transform: scale(1.02);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            padding: 20px 0 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.25);
        }

        .footer-bottom .links a {
            color: rgba(255, 255, 255, 0.3);
            transition: color 0.2s;
            margin: 0 10px;
        }

        .footer-bottom .links a:hover {
            color: #00d4ff;
        }

        .footer-bottom .brand {
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 查看更多按钮 ===== */
        .view-more-wrapper {
            text-align: center;
            margin-top: 30px;
        }

        .view-more-wrapper .view-more-btn {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 10px 40px;
            border-radius: 40px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
        }

        .view-more-wrapper .view-more-btn:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        /* ===== 底部 ===== */
        .footer {
            padding: 30px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.25);
            font-size: 13px;
            background: #080b16;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .footer a {
            color: rgba(255, 255, 255, 0.3);
            transition: color 0.2s;
        }

        .footer a:hover {
            color: #00d4ff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .plans-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 26, 0.97);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 24px 28px 32px;
                gap: 16px;
                font-size: 16px;
                border-bottom: 1px solid rgba(0, 212, 255, 0.06);
                transform: translateY(-120%);
                transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-links a {
                padding: 8px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-cta {
                border: none !important;
                background: linear-gradient(135deg, #00d4ff, #0077ff) !important;
                text-align: center;
                border-radius: 30px !important;
                padding: 10px !important;
                margin-top: 6px;
            }

            .nav-toggle {
                display: flex;
            }

            .hero {
                padding: 110px 0 50px;
            }

            .hero h1 {
                font-size: 34px;
            }

            .hero .subtitle {
                font-size: 20px;
            }

            .hero .desc {
                font-size: 15px;
            }

            .hero .highlight-list {
                gap: 8px 18px;
            }

            .hero .highlight-list li {
                font-size: 13px;
            }

            .content-block {
                padding: 50px 0 40px;
            }

            .content-block .block-title {
                font-size: 28px;
            }

            .content-block .block-body {
                font-size: 15px;
                padding: 0 8px;
            }

            .plans-section {
                padding: 50px 0 60px;
            }

            .plans-header h2 {
                font-size: 28px;
            }

            .plans-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .plan-card {
                padding: 20px 16px 18px;
            }

            .plan-card .price {
                font-size: 30px;
            }

            .plan-card .traffic {
                font-size: 17px;
            }

            .plan-card .meta {
                gap: 6px 10px;
                padding: 10px 0 8px;
            }

            .plan-card .meta .vip {
                font-size: 12px;
                padding: 1px 10px;
            }

            .plan-card .meta .days {
                font-size: 12px;
            }

            .plan-card .features li {
                font-size: 13px;
            }

            .plan-card .btn-buy {
                font-size: 14px;
                padding: 8px 0;
            }

            .plan-notice {
                padding: 18px 20px;
                font-size: 13px;
            }

            .service-types .service-item {
                padding: 10px 20px;
                font-size: 14px;
            }

            .feature-icons {
                gap: 16px 28px;
            }

            .footer-actions {
                gap: 15px 30px;
                flex-direction: column;
                align-items: stretch;
            }

            .footer-actions .action-btn {
                text-align: center;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .plans-grid {
                grid-template-columns: 1fr;
                max-width: 380px;
                margin: 0 auto;
            }

            .hero h1 {
                font-size: 28px;
            }

            .hero .subtitle {
                font-size: 17px;
            }

            .plans-header h2 {
                font-size: 24px;
            }

            .plan-card .price {
                font-size: 28px;
            }

            .content-block .block-title {
                font-size: 24px;
            }
        }