/* roulang page: index */
:root {
            --bg-primary: #0A1128;
            --bg-secondary: #0B1A3A;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.07);
            --bg-input: rgba(255, 255, 255, 0.06);
            --text-primary: #E8ECF1;
            --text-secondary: #B0B8C5;
            --text-muted: #7A8494;
            --accent-gold: #D4AF37;
            --accent-amber: #F5A623;
            --glow-blue: #00E5FF;
            --glow-cyan: #4DEEEA;
            --border-subtle: rgba(255, 255, 255, 0.10);
            --border-medium: rgba(255, 255, 255, 0.18);
            --border-focus: rgba(0, 229, 255, 0.55);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 18px rgba(0, 229, 255, 0.35);
            --shadow-glow-strong: 0 0 28px rgba(0, 229, 255, 0.55);
            --shadow-gold-glow: 0 0 20px rgba(212, 175, 55, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1260px;
            --nav-height: 68px;
            --section-gap: 100px;
            --section-gap-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 229, 255, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 60%, rgba(212, 175, 55, 0.03) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 85%, rgba(78, 238, 234, 0.03) 0%, transparent 50%);
            background-attachment: fixed;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 17, 40, 0.72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(10, 17, 40, 0.9);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
            gap: 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #0A1128;
            font-weight: 700;
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.3);
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text .accent {
            color: var(--glow-blue);
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-channels a {
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 1px;
            background: var(--glow-blue);
            box-shadow: 0 0 8px var(--glow-blue);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border: 1px solid var(--border-subtle);
            border-radius: 22px;
            padding: 7px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            cursor: text;
        }

        .nav-search:hover {
            border-color: var(--border-medium);
        }

        .nav-search:focus-within {
            border-color: var(--border-focus);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
        }

        .nav-search input {
            background: transparent;
            color: var(--text-primary);
            width: 130px;
            font-size: 0.85rem;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search .search-icon {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .btn-login {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-primary);
            border: 1px solid var(--border-medium);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--glow-blue);
            color: var(--glow-blue);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
        }

        .btn-publish {
            padding: 9px 20px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #0A1128;
            background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
            cursor: pointer;
            border: none;
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            animation: breathe-glow 2.8s ease-in-out infinite;
        }

        .btn-publish:hover {
            box-shadow: 0 0 26px rgba(0, 229, 255, 0.55);
            transform: translateY(-1px);
        }

        .btn-publish:active {
            transform: scale(0.96);
        }

        @keyframes breathe-glow {
            0%,
            100% {
                box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
            }
            50% {
                box-shadow: 0 0 24px rgba(0, 229, 255, 0.55);
            }
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 6px;
            z-index: 1001;
        }

        .hamburger span {
            width: 26px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 17, 40, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            padding: 28px;
            gap: 12px;
            overflow-y: auto;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 20px;
            border-radius: 12px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.07);
            border-left: 3px solid var(--glow-blue);
        }

        .mobile-menu .mobile-search-wrap {
            margin-top: 8px;
        }

        .mobile-menu .mobile-search-wrap input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 22px;
            background: var(--bg-input);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        /* ========== HERO (白皮书获客风格) ========== */
        .hero-section {
            padding-top: var(--nav-height);
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.22;
            filter: brightness(0.5) saturate(0.7);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 35% 40%, rgba(10, 17, 40, 0.5) 0%, rgba(10, 17, 40, 0.9) 70%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 60px 28px;
            width: 100%;
        }

        .hero-cover-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 440px;
            margin: 0 auto;
            transition: all var(--transition-smooth);
        }

        .hero-cover-card:hover {
            border-color: var(--border-medium);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 0 30px rgba(0, 229, 255, 0.08);
        }

        .hero-cover-img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
            border-radius: var(--radius-md);
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid var(--border-subtle);
        }

        .hero-cover-label {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }

        .hero-cover-title-sm {
            text-align: center;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 20px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            font-size: 0.82rem;
            color: var(--glow-blue);
            font-weight: 500;
            width: fit-content;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--glow-blue);
            box-shadow: 0 0 8px var(--glow-blue);
            animation: breathe-glow 2.8s ease-in-out infinite;
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }

        .hero h1 .highlight {
            color: var(--glow-blue);
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 500px;
        }

        .hero-toc {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 4px;
        }

        .hero-toc-item {
            padding: 7px 15px;
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .hero-toc-item:hover {
            border-color: var(--glow-blue);
            color: var(--glow-blue);
            background: rgba(0, 229, 255, 0.05);
        }

        .hero-form-wrap {
            display: flex;
            flex-direction: column;
            gap: 12px;
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            max-width: 420px;
        }

        .hero-form-wrap .form-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .hero-form-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .hero-form-row input,
        .hero-form-row select {
            flex: 1;
            min-width: 100px;
            padding: 11px 15px;
            border-radius: var(--radius-sm);
            background: var(--bg-input);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .hero-form-row input:focus,
        .hero-form-row select:focus {
            border-color: var(--border-focus);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.12);
        }

        .hero-form-row input::placeholder {
            color: var(--text-muted);
        }

        .hero-form-row select {
            appearance: none;
            -webkit-appearance: none;
            cursor: pointer;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237A8494' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .hero-form-row select option {
            background: #0B1A3A;
            color: #E8ECF1;
        }

        .btn-hero-cta {
            width: 100%;
            padding: 13px 24px;
            border-radius: 25px;
            font-size: 1rem;
            font-weight: 700;
            color: #0A1128;
            background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
            cursor: pointer;
            border: none;
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.4);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            animation: breathe-glow 2.8s ease-in-out infinite;
        }

        .btn-hero-cta:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
            transform: translateY(-2px);
        }

        .btn-hero-cta:active {
            transform: scale(0.97);
        }

        .hero-trust-line {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 4px;
        }

        /* ========== KPI SECTION ========== */
        .kpi-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            position: relative;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .kpi-item {
            padding: 28px 20px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
        }

        .kpi-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-medium);
            transform: translateY(-3px);
        }

        .kpi-number {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2.6rem;
            color: var(--glow-blue);
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
            line-height: 1.1;
        }

        .kpi-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* ========== PAIN POINT SECTION ========== */
        .pain-section {
            padding: var(--section-gap) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .pain-bg-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
            animation: float-glow 6s ease-in-out infinite;
        }

        @keyframes float-glow {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(1);
            }
            50% {
                transform: translate(-50%, -50%) scale(1.25);
            }
        }

        .pain-quote {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.2rem;
            line-height: 1.5;
            color: var(--text-primary);
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            letter-spacing: 0.5px;
        }

        .pain-quote .em {
            color: var(--accent-gold);
            text-shadow: 0 0 16px rgba(212, 175, 55, 0.3);
        }

        .pain-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-top: 16px;
            position: relative;
            z-index: 1;
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }

        .section-header .sub {
            font-size: 1rem;
            color: var(--text-muted);
            margin-top: 10px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 1fr;
            gap: 24px;
            align-items: start;
        }

        .solution-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 14px;
            min-height: 280px;
        }

        .solution-card.featured {
            grid-row: span 2;
            min-height: 420px;
        }

        .solution-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-medium);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(0, 229, 255, 0.06);
            transform: translateY(-4px);
        }

        .solution-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(0, 229, 255, 0.1);
            color: var(--glow-blue);
            flex-shrink: 0;
        }

        .solution-card .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
        }

        .solution-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
        }

        .solution-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .solution-card .card-tag {
            display: inline-flex;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(212, 175, 55, 0.1);
            color: var(--accent-gold);
            width: fit-content;
        }

        /* ========== RESULT SECTION ========== */
        .result-section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .result-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .result-panel {
            padding: 50px 36px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
            position: relative;
            min-height: 320px;
            justify-content: center;
        }

        .result-panel.before {
            background: rgba(180, 180, 180, 0.04);
        }

        .result-panel.after {
            background: rgba(0, 229, 255, 0.04);
        }

        .result-divider {
            position: absolute;
            left: 50%;
            top: 10%;
            bottom: 10%;
            width: 1px;
            background: linear-gradient(to bottom, transparent, var(--glow-blue), var(--glow-cyan), var(--glow-blue), transparent);
            z-index: 2;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
        }

        .result-panel .result-icon {
            font-size: 3rem;
            opacity: 0.8;
        }

        .result-panel.before .result-icon {
            color: var(--text-muted);
        }
        .result-panel.after .result-icon {
            color: var(--glow-blue);
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
        }

        .result-panel h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
        }

        .result-panel p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            max-width: 280px;
        }

        .result-panel .result-img {
            width: 100%;
            max-width: 300px;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            opacity: 0.85;
        }

        /* ========== TESTIMONIAL SECTION ========== */
        .testimonial-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .testimonial-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 10px 0 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .testimonial-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .testimonial-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .testimonial-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .testimonial-card {
            flex: 0 0 340px;
            scroll-snap-align: start;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .testimonial-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.03) 0%, transparent 60%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }

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

        .testimonial-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
        }

        .testimonial-card .t-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .t-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #0A1128;
            flex-shrink: 0;
        }

        .t-stars {
            color: var(--accent-gold);
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        .t-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .t-quote {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            position: relative;
            z-index: 1;
        }

        /* ========== NEWS SECTION ========== */
        .news-section {
            padding: var(--section-gap) 0;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            display: flex;
            align-items: baseline;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .news-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--border-medium);
        }

        .news-list-item .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 70px;
        }

        .news-list-item .news-title {
            font-size: 0.95rem;
            color: var(--text-primary);
            font-weight: 500;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .news-list-item:hover .news-title {
            color: var(--glow-blue);
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-sidebar h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .news-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .news-tag {
            padding: 7px 15px;
            border-radius: 16px;
            font-size: 0.82rem;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .news-tag:hover {
            border-color: var(--glow-blue);
            color: var(--glow-blue);
            background: rgba(0, 229, 255, 0.06);
        }

        .news-sidebar-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-sidebar-card .rec-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .news-sidebar-card .rec-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .news-sidebar-card .rec-link {
            font-size: 0.85rem;
            color: var(--glow-blue);
            font-weight: 500;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .news-sidebar-card .rec-link:hover {
            color: var(--glow-cyan);
        }

        /* ========== GUARANTEE + SELLING POINTS ========== */
        .guarantee-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .guarantee-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 50px;
        }

        .guarantee-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 22px;
            border-radius: 25px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-primary);
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .guarantee-badge:hover {
            border-color: var(--glow-blue);
            background: rgba(0, 229, 255, 0.05);
        }

        .guarantee-badge .g-icon {
            color: var(--glow-blue);
            font-size: 1rem;
        }

        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .selling-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .selling-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5), 0 0 20px rgba(212, 175, 55, 0.1);
            transform: translateY(-3px);
        }

        .selling-card .s-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(212, 175, 55, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
        }

        .selling-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        .selling-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 240px;
        }

        /* ========== COLLECTION + MILESTONE ========== */
        .collection-section {
            padding: var(--section-gap) 0;
        }

        .collection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin-bottom: 50px;
        }

        .collection-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 10px;
            cursor: pointer;
        }

        .collection-card:hover {
            border-color: var(--glow-blue);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 18px rgba(0, 229, 255, 0.06);
            transform: translateY(-3px);
        }

        .collection-card .coll-icon {
            font-size: 1.8rem;
            color: var(--glow-blue);
        }

        .collection-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .collection-card .coll-count {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .collection-card .coll-cta {
            font-size: 0.85rem;
            color: var(--glow-blue);
            font-weight: 500;
            margin-top: auto;
        }

        .milestone-row {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
            position: relative;
        }

        .milestone-item {
            flex: 1;
            min-width: 140px;
            max-width: 200px;
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }

        .milestone-item::after {
            content: '';
            position: absolute;
            top: 28px;
            right: 0;
            width: 40px;
            height: 1px;
            background: var(--border-subtle);
        }

        .milestone-item:last-child::after {
            display: none;
        }

        .milestone-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--glow-blue);
            margin: 0 auto 12px;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
            position: relative;
            z-index: 1;
        }

        .milestone-year {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        .milestone-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--border-medium);
        }

        .faq-item.open {
            border-color: var(--border-focus);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.08);
        }

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            color: var(--glow-blue);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: var(--section-gap) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-glow-bg {
            position: absolute;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 65%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 18px;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-primary);
        }

        .cta-inner .cta-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 460px;
        }

        .btn-cta-main {
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #0A1128;
            background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
            cursor: pointer;
            border: none;
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.45);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            animation: breathe-glow 2.8s ease-in-out infinite;
        }

        .btn-cta-main:hover {
            box-shadow: 0 0 34px rgba(0, 229, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-cta-main:active {
            transform: scale(0.96);
        }

        .cta-form-simple {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 8px;
        }

        .cta-form-simple input {
            padding: 11px 16px;
            border-radius: 22px;
            background: var(--bg-input);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 0.9rem;
            min-width: 160px;
            transition: all var(--transition-fast);
        }

        .cta-form-simple input:focus {
            border-color: var(--border-focus);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.12);
        }

        .cta-form-simple input::placeholder {
            color: var(--text-muted);
        }

        .cta-trust {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #080E1F;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 30px;
        }

        .footer-brand .f-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .footer-brand .f-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 260px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--glow-blue);
        }

        .footer-search {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 8px 14px;
            gap: 8px;
            margin-top: 8px;
        }

        .footer-search input {
            background: transparent;
            color: var(--text-primary);
            width: 100%;
            font-size: 0.85rem;
            border: none;
            outline: none;
        }

        .footer-search input::placeholder {
            color: var(--text-muted);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 22px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--glow-blue);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-content {
                align-items: center;
                text-align: center;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-form-wrap {
                margin: 0 auto;
            }
            .hero-cover-card {
                max-width: 320px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-toc {
                justify-content: center;
            }
            .hero-badge {
                margin: 0 auto;
            }
            .solution-grid {
                grid-template-columns: 1fr 1fr;
            }
            .solution-card.featured {
                grid-row: span 1;
                min-height: auto;
            }
            .result-split {
                grid-template-columns: 1fr;
            }
            .result-divider {
                left: 10%;
                right: 10%;
                top: 50%;
                bottom: auto;
                width: auto;
                height: 1px;
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .selling-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-channels {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .btn-login {
                display: none;
            }
            .nav-actions {
                gap: 8px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
                --nav-height: 60px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .pain-quote {
                font-size: 1.5rem;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .kpi-number {
                font-size: 2rem;
            }
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .milestone-row {
                flex-direction: column;
                align-items: center;
                gap: 20px;
            }
            .milestone-item::after {
                display: none;
            }
            .milestone-item {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .testimonial-card {
                flex: 0 0 280px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .result-panel {
                padding: 36px 20px;
                min-height: 240px;
            }
            .guarantee-badges {
                gap: 10px;
            }
            .guarantee-badge {
                padding: 10px 16px;
                font-size: 0.82rem;
            }
            .container {
                padding: 0 18px;
            }
            .header-inner {
                padding: 0 18px;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.88rem;
            }
            .hero-form-row {
                flex-direction: column;
            }
            .hero-form-row input,
            .hero-form-row select {
                min-width: 100%;
            }
            .kpi-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .pain-quote {
                font-size: 1.25rem;
            }
            .btn-hero-cta,
            .btn-cta-main {
                font-size: 0.9rem;
                padding: 12px 24px;
            }
            .testimonial-card {
                flex: 0 0 250px;
            }
            .hero-cover-card {
                max-width: 260px;
                padding: 18px;
            }
            .logo-text {
                font-size: 0.95rem;
            }
        }