/* Base Reset & Variables - Bright Orange Flame Style (亮橙炽艳风) */
        :root {
            --primary: #FF5722;
            --primary-hover: #E64A19;
            --primary-light: #FBE9E7;
            --accent: #FF9800;
            --dark-bg: #1E232A;
            --body-bg: #FAFAFC;
            --card-bg: #FFFFFF;
            --text-primary: #1F242B;
            --text-secondary: #525A66;
            --text-muted: #848D99;
            --border-color: #EAEFF5;
            --shadow-sm: 0 4px 12px rgba(255, 87, 34, 0.06);
            --shadow-md: 0 8px 24px rgba(31, 36, 43, 0.08);
            --shadow-hover: 0 12px 32px rgba(255, 87, 34, 0.16);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --container-width: 1240px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--body-bg);
            color: var(--text-primary);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            background-color: var(--body-bg);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Container Layout */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Standard Typography Header */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, #FF7043 0%, #FF5722 100%);
            color: #FFFFFF;
            box-shadow: 0 6px 18px rgba(255, 87, 34, 0.3);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #FF5722 0%, #E64A19 100%);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 87, 34, 0.4);
        }

        .btn-outline {
            background: transparent;
            border-color: #DCDFE6;
            color: var(--text-primary);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            max-height: 42px;
            width: auto;
        }

        /* Nav-links mandate: gap must be 0 */
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 0;
        }

        .nav-links li a {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
        }

        .nav-links li a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
        }

        /* Hero Section - STRICT RULE: NO IMAGES AT ALL IN HERO */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(255, 87, 34, 0.08) 0%, rgba(255, 255, 255, 0) 50%),
                        linear-gradient(180deg, #FFF9F7 0%, #FAFAFC 100%);
            padding: 90px 0 70px 0;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            max-width: 920px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            border: 1px solid rgba(255, 87, 34, 0.2);
            box-shadow: 0 4px 12px rgba(255, 87, 34, 0.08);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-badge span {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--primary);
            border-radius: 50%;
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.9); opacity: 0.8; }
            50% { transform: scale(1.4); opacity: 1; }
            100% { transform: scale(0.9); opacity: 0.8; }
        }

        /* H1 rewrite under 20 chars */
        .hero-title {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #FF7043 0%, #FF5722 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .hero-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }

        .stat-item {
            text-align: center;
        }

        .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Models Ticker / Cloud */
        .models-bar {
            background: #FFFFFF;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .models-title {
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .models-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .model-tag {
            background-color: var(--body-bg);
            border: 1px solid var(--border-color);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }

        /* Section Layout Common */
        .page-section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .bg-white { background-color: #FFFFFF; }
        .bg-light { background-color: var(--body-bg); }

        /* Grid Utilities */
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-items: center; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

        /* Feature Cards */
        .feature-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 87, 34, 0.3);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: bold;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* About Section Content */
        .about-text h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .about-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.8;
        }

        .about-checklist {
            list-style: none;
            margin-top: 20px;
            margin-bottom: 24px;
        }

        .about-checklist li {
            position: relative;
            padding-left: 26px;
            font-size: 15px;
            color: var(--text-primary);
            margin-bottom: 10px;
            font-weight: 500;
        }

        .about-checklist li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .media-box {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        /* Comparison Section (MUST HAVE Rating specs) */
        .comparison-badge-box {
            background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
            border: 2px solid #FFB74D;
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            margin-bottom: 40px;
        }

        .score-large {
            font-size: 42px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stars {
            color: #FF9800;
            font-size: 20px;
            margin-bottom: 6px;
        }

        .comp-table-wrapper {
            overflow-x: auto;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .comp-table th, .comp-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comp-table th {
            background-color: #F8F9FA;
            font-weight: 700;
            color: var(--text-primary);
        }

        .comp-table tr.highlight-row {
            background-color: rgba(255, 87, 34, 0.04);
        }

        .comp-table td.highlight-cell {
            color: var(--primary);
            font-weight: 700;
        }

        /* Token Price Table */
        .token-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }

        .token-name {
            font-size: 18px;
            font-weight: 700;
        }

        .token-price {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
        }

        /* Process Steps */
        .step-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
        }

        .step-num {
            display: inline-block;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            text-align: center;
            line-height: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        /* Reviews Grid */
        .review-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-content {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar-text {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .user-info h4 {
            font-size: 14px;
            font-weight: 700;
        }

        .user-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Form Container */
        .form-box {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 36px;
            box-shadow: var(--shadow-md);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            font-size: 14px;
            border: 1px solid #DCDFE6;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            background-color: #FAFAFC;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.1);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 24px;
            background-color: #FAFAFC;
        }

        .faq-item.active .faq-answer {
            padding: 16px 24px 20px 24px;
            max-height: 250px;
            border-top: 1px solid var(--border-color);
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Articles List */
        .article-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }

        .article-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .article-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;

        }

        .article-card h4 a {
            color: var(--text-primary);
        }

        .article-card h4 a:hover {
            color: var(--primary);
        }

        .article-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Agency / Partner Section */
        .agency-box {
            background: linear-gradient(135deg, #1E232A 0%, #2D343F 100%);
            color: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 48px;
            text-align: center;
        }

        .agency-box h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .agency-box p {
            color: #A0AEC0;
            max-width: 680px;
            margin: 0 auto 30px auto;
            font-size: 16px;
        }

        /* Contact Details */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .contact-info-list {
            list-style: none;
        }

        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            font-size: 15px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .qr-box {
            text-align: center;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            max-width: 240px;
        }

        .qr-box img {
            width: 160px;
            height: 160px;
            margin: 0 auto 12px auto;
            border-radius: 8px;
        }

        /* Footer Alignment & Standards */
        .site-footer {
            background-color: #181C22;
            color: #A0AEC0;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #A0AEC0;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .friend-links-box {
            border-top: 1px solid #2D343F;
            padding-top: 24px;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .friend-links-box span {
            color: #FFFFFF;
            font-weight: 600;
        }

        .friend-links-box a {
            color: #A0AEC0;
        }

        .friend-links-box a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid #2D343F;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: #718096;
            font-size: 13px;
        }

        /* Floating Contact Widget */
        .float-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 20px rgba(255, 87, 34, 0.4);
            cursor: pointer;
            font-size: 12px;
            font-weight: 700;
            text-align: center;
            line-height: 1.2;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .hero-title { font-size: 32px; }
            .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .grid-3 { grid-template-columns: repeat(1, 1fr); }
            .grid-2 { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .contact-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 20px 0;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-color);
            }
            .nav-links.show { display: flex; }
            .nav-links li { width: 100%; text-align: center; }
            .hero-stats-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .agency-box { padding: 30px 20px; }
        }