* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --gold: #f0a830;
            --gold-soft: #fcd89d;
            --gold-glow: rgba(240, 168, 48, 0.38);
            --bg-deep: #080a10;
            --bg-card: #11141e;
            --border-subtle: #232638;
            --text-primary: #fef7e8;
            --text-secondary: #c4b99a;
            --text-muted: #8b8068;
            --radius-lg: 28px;
            --radius-md: 18px;
            --radius-full: 50px;
            --transition-fast: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: #06080e;
            color: var(--text-primary);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            letter-spacing: 0.01em;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 26px;
        }

        /* Header 统一 */
        .header {
            background: rgba(8, 10, 16, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(240, 168, 48, 0.14);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 15px 0;
            gap: 16px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 750;
            letter-spacing: -0.8px;
            background: linear-gradient(130deg, #fcd89d, #f0a830, #d9750b);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
        }

        .logo::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            opacity: 0.5;
            border-radius: 1px;
        }

        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
            font-weight: 500;
            flex-wrap: wrap;
        }

        .nav-links a {
            text-decoration: none;
            color: #d5cdb8;
            transition: var(--transition-fast);
            font-size: 0.93rem;
            letter-spacing: 0.3px;
            white-space: nowrap;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width 0.25s ease;
            border-radius: 1px;
        }

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

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold-soft);
            text-shadow: 0 0 7px var(--gold-glow);
        }

        .btn-outline-gold {
            background: transparent;
            border: 1.5px solid var(--gold);
            color: var(--gold-soft);
            padding: 9px 22px;
            border-radius: var(--radius-full);
            font-weight: 550;
            transition: var(--transition-fast);
            cursor: pointer;
            font-size: 0.88rem;
            white-space: nowrap;
            text-decoration: none;
            display: inline-block;
            letter-spacing: 0.3px;
        }

        .btn-outline-gold:hover {
            background: rgba(240, 168, 48, 0.1);
            box-shadow: 0 0 18px var(--gold-glow);
            border-color: #fcd89d;
        }

        /* 页面hero */
        .page-hero {
            padding: 65px 0 35px;
            text-align: center;
            background: radial-gradient(ellipse at 50% 10%, #1a1810 0%, #080a10 70%);
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(to right, #fef9ee, #fcd89d);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 12px;
        }

        .page-hero .subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto 16px;
            line-height: 1.6;
        }

        .badge-pill {
            background: rgba(240, 168, 48, 0.1);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(240, 168, 48, 0.35);
            padding: 6px 18px;
            border-radius: var(--radius-full);
            font-size: 0.76rem;
            font-weight: 550;
            display: inline-block;
            margin-bottom: 16px;
            color: var(--gold-soft);
            letter-spacing: 0.5px;
        }

        /* 通用区块标题 */
        .section-title {
            text-align: center;
            font-size: clamp(1.7rem, 3.2vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: #fef7e8;
        }

        .section-desc {
            text-align: center;
            color: #9b8f76;
            max-width: 620px;
            margin: 0 auto 36px;
            font-size: 0.96rem;
        }

        /* 为什么重视本地加密 */
        .reason-section {
            padding: 40px 0 60px;
        }

        .highlight-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            border: 1px solid #5c4a28;
            max-width: 800px;
            margin: 0 auto 30px;
            text-align: center;
            box-shadow: 0 0 24px rgba(240, 168, 48, 0.08);
        }

        .highlight-card p {
            color: #d5c9a8;
            font-size: 1rem;
            margin-bottom: 12px;
        }

        .reason-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .reason-item {
            background: #0f111c;
            border-radius: 20px;
            padding: 24px 18px;
            border: 1px solid #1c2034;
            text-align: center;
        }

        .reason-item .ri-icon {
            font-size: 2rem;
            display: block;
            margin-bottom: 8px;
        }

        .reason-item h4 {
            font-weight: 650;
            color: #e8dcc4;
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .reason-item p {
            color: #8e826e;
            font-size: 0.82rem;
        }

        /* 核心保护逻辑 */
        .core-logic {
            padding: 50px 0;
            background: #070910;
            border-top: 1px solid #151826;
            border-bottom: 1px solid #151826;
        }

        .logic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 24px;
        }

        .logic-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--border-subtle);
            text-align: center;
            transition: var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .logic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .logic-card:hover {
            border-color: #5c4a28;
            box-shadow: 0 16px 28px -10px rgba(240, 168, 48, 0.16);
            transform: translateY(-2px);
        }

        .logic-card:hover::before {
            opacity: 0.8;
        }

        .logic-icon {
            font-size: 2.6rem;
            display: block;
            margin-bottom: 10px;
        }

        .logic-card h3 {
            font-weight: 700;
            color: #f0e4cc;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .logic-card p {
            color: #9b8f76;
            font-size: 0.86rem;
            line-height: 1.5;
        }

        /* 适合用户 */
        .audience-section {
            padding: 50px 0;
            background: #090b14;
        }

        .audience-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .audience-card {
            background: #0f111c;
            border-radius: 22px;
            padding: 24px 18px;
            border: 1px solid #1c2034;
            text-align: center;
            transition: var(--transition-fast);
        }

        .audience-card:hover {
            border-color: #4a3d28;
            background: #131621;
        }

        .audience-card .au-icon {
            font-size: 2.4rem;
            display: block;
            margin-bottom: 8px;
        }

        .audience-card h4 {
            font-weight: 700;
            color: #e8dcc4;
            font-size: 0.98rem;
            margin-bottom: 4px;
        }

        .audience-card p {
            color: #8e826e;
            font-size: 0.81rem;
        }

        /* 本地锁重要性 */
        .lock-section {
            padding: 50px 0;
            background: #070910;
            border-top: 1px solid #151826;
        }

        .lock-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            max-width: 800px;
            margin: 0 auto;
        }

        .lock-item {
            background: #0f111c;
            border-radius: 20px;
            padding: 16px 22px;
            border: 1px solid #1c2034;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 550;
            color: #d5c9a8;
            font-size: 0.9rem;
            transition: var(--transition-fast);
        }

        .lock-item:hover {
            border-color: #5c4a28;
            background: #131621;
        }

        .lock-item .lock-icon {
            font-size: 1.6rem;
        }

        /* 安全建议 */
        .advice-section {
            padding: 50px 0;
            background: #080a10;
        }

        .advice-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
            gap: 18px;
        }

        .advice-card {
            background: #0f111c;
            border-radius: 20px;
            padding: 22px 18px;
            border: 1px solid #1c2034;
            text-align: center;
            transition: var(--transition-fast);
        }

        .advice-card:hover {
            border-color: #4a3d28;
        }

        .advice-card .ad-icon {
            font-size: 2rem;
            display: block;
            margin-bottom: 6px;
        }

        .advice-card h5 {
            font-weight: 650;
            color: #e8dcc4;
            font-size: 0.9rem;
            margin-bottom: 4px;
        }

        .advice-card p {
            color: #8e826e;
            font-size: 0.78rem;
        }

        /* FAQ */
        .faq-section {
            padding: 50px 0;
            background: #090b14;
            border-top: 1px solid #151826;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #0f111c;
            border-radius: 18px;
            padding: 18px 20px;
            border: 1px solid #1c2034;
            transition: var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #4a3d28;
        }

        .faq-item h4 {
            font-weight: 650;
            color: #f0e4cc;
            font-size: 0.94rem;
            margin-bottom: 6px;
        }

        .faq-item p {
            font-size: 0.84rem;
            color: #9b8f76;
            line-height: 1.55;
        }

        /* 延伸阅读 & CTA */
        .ext-links {
            padding: 40px 0 60px;
            background: #070910;
            text-align: center;
        }

        .ext-links .link-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
        }

        .ext-link-pill {
            background: #0f111c;
            border: 1px solid #1c2034;
            border-radius: 40px;
            padding: 10px 24px;
            color: #d5c9a8;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition-fast);
            font-size: 0.88rem;
            letter-spacing: 0.3px;
        }

        .ext-link-pill:hover {
            border-color: #5c4a28;
            background: #131621;
            color: var(--gold-soft);
            box-shadow: 0 0 14px rgba(240, 168, 48, 0.2);
        }

        .cta-block {
            padding: 45px 0 60px;
            text-align: center;
            background: linear-gradient(100deg, #100e08, #06070f);
            border-top: 1px solid #232030;
        }

        .cta-block h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fef7e8;
        }

        .cta-block p {
            color: #9b8f76;
            margin-bottom: 20px;
            font-size: 0.96rem;
        }

        .btn-primary-gold {
            background: #1a1408;
            border: 1.5px solid var(--gold);
            color: #fef3d6;
            padding: 13px 32px;
            border-radius: 44px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition-fast);
            box-shadow: 0 0 10px rgba(240, 168, 48, 0.15);
            display: inline-block;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }

        .btn-primary-gold:hover {
            background: rgba(240, 168, 48, 0.1);
            border-color: #fcd89d;
            box-shadow: 0 0 24px var(--gold-glow);
            transform: scale(1.02);
        }

        /* Footer 统一 */
        .footer {
            background: #030509;
            padding: 44px 0 24px;
            border-top: 1px solid #151826;
        }

        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 34px;
        }

        .footer-col h5 {
            font-weight: 600;
            color: #c8bc9e;
            margin-bottom: 9px;
            font-size: 0.87rem;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            color: #7a6f5a;
            text-decoration: none;
            font-size: 0.82rem;
            display: block;
            margin-bottom: 5px;
            transition: var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--gold-soft);
        }

        .copyright {
            text-align: center;
            margin-top: 36px;
            color: #4a4236;
            font-size: 0.76rem;
            letter-spacing: 0.3px;
        }

        @media (max-width: 780px) {
            .nav-links {
                gap: 14px;
                font-size: 0.82rem;
            }
            .highlight-card {
                padding: 22px 16px;
            }
            .lock-list {
                flex-direction: column;
                align-items: center;
            }
            .reason-grid,
            .logic-grid,
            .audience-grid,
            .advice-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .nav-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .container {
                padding: 0 14px;
            }
            .logic-card,
            .audience-card,
            .advice-card,
            .faq-item,
            .reason-item {
                padding: 18px 14px;
            }
        }