/* roulang page: index */
:root {
            --bg-deep: #0B1622;
            --bg-mid: #111D2E;
            --bg-card-glass: rgba(18, 30, 50, 0.55);
            --border-glass: rgba(255, 255, 255, 0.08);
            --gold: #D4A843;
            --gold-glow: #F0C060;
            --gold-border-hover: rgba(212, 168, 67, 0.35);
            --coral: #E85D3F;
            --coral-weak: rgba(232, 93, 63, 0.7);
            --text-primary: #E8ECF1;
            --text-secondary: #8B9AB0;
            --text-weak: #5A6A80;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.55);
            --shadow-btn-gold: 0 4px 20px rgba(212, 168, 67, 0.3);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.5);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'SF Pro Display', system-ui, sans-serif;
            --container-max: 1200px;
            --section-gap-desktop: 120px;
            --section-gap-tablet: 90px;
            --section-gap-mobile: 70px;
            --card-gap-desktop: 28px;
            --card-gap-mobile: 18px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: var(--font-cn);
            font-weight: 400;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        @media (min-width: 1025px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* ========== 导航 Navigation ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
            background: rgba(11, 22, 34, 0.3);
        }

        .nav.scrolled {
            background: rgba(11, 22, 34, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-nav);
            border-bottom: 1px solid rgba(212, 168, 67, 0.15);
            padding: 10px 0;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (min-width: 768px) {
            .nav-inner {
                padding: 0 40px;
            }
        }
        @media (min-width: 1025px) {
            .nav-inner {
                padding: 0 20px;
            }
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 22px;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            flex-shrink: 0;
            z-index: 1001;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-mid);
            border: 2px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .nav-logo-icon svg {
            width: 20px;
            height: 20px;
        }

        .nav-links {
            display: none;
            list-style: none;
            gap: 6px;
            align-items: center;
        }

        @media (min-width: 1025px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            padding: 8px 15px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color 0.3s ease, background 0.3s ease;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--gold);
        }

        .nav-cta-btn {
            display: none;
            padding: 9px 20px;
            border-radius: 999px;
            border: 1.5px solid var(--gold);
            color: var(--gold);
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        @media (min-width: 1025px) {
            .nav-cta-btn {
                display: inline-block;
            }
        }

        .nav-cta-btn:hover {
            background: rgba(212, 168, 67, 0.1);
            box-shadow: 0 0 20px rgba(212, 168, 67, 0.25);
        }

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

        @media (min-width: 1025px) {
            .hamburger {
                display: none;
            }
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 3px;
            background: var(--gold);
            transition: all 0.3s ease;
            transform-origin: center;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(11, 22, 34, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0;
            transform: translateX(100%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            pointer-events: none;
        }

        .mobile-menu.open {
            transform: translateX(0);
            pointer-events: auto;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 52px;
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.3s ease, background 0.3s ease;
            letter-spacing: 0.02em;
        }

        .mobile-menu a:hover,
        .mobile-menu a:active {
            color: var(--gold);
            background: rgba(212, 168, 67, 0.06);
        }

        .mobile-menu .mobile-cta {
            margin-top: 20px;
            padding: 14px 36px;
            border-radius: 999px;
            border: 2px solid var(--gold);
            color: var(--gold);
            font-weight: 700;
            font-size: 17px;
            transition: all 0.3s ease;
        }

        .mobile-menu .mobile-cta:hover {
            background: rgba(212, 168, 67, 0.12);
            box-shadow: 0 0 28px rgba(212, 168, 67, 0.35);
        }

        /* ========== Hero 首屏 ========== */
        .hero {
            position: relative;
            min-height: 90vh;
            min-height: clamp(560px, 90vh, 900px);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background-color: var(--bg-deep);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--bg-deep);
            opacity: 0.88;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            opacity: 0.06;
            z-index: 1;
            pointer-events: none;
        }

        .hero-spotlight {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.09;
            pointer-events: none;
            z-index: 1;
            animation: floatSpotlight 12s ease-in-out infinite;
        }

        .hero-spotlight:nth-child(1) {
            width: 500px;
            height: 500px;
            background: var(--gold-glow);
            top: -15%;
            left: 10%;
            animation-delay: 0s;
            animation-duration: 14s;
        }

        .hero-spotlight:nth-child(2) {
            width: 400px;
            height: 400px;
            background: var(--gold);
            top: 40%;
            right: -8%;
            animation-delay: -5s;
            animation-duration: 16s;
        }

        .hero-spotlight:nth-child(3) {
            width: 350px;
            height: 350px;
            background: var(--gold-glow);
            bottom: -10%;
            left: 30%;
            animation-delay: -9s;
            animation-duration: 13s;
        }

        @keyframes floatSpotlight {
            0%,
            100% {
                transform: translate(0, 0) scale(1);
            }
            25% {
                transform: translate(60px, -40px) scale(1.15);
            }
            50% {
                transform: translate(-30px, 50px) scale(0.9);
            }
            75% {
                transform: translate(-50px, -30px) scale(1.08);
            }
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 750px;
            padding: 0 24px;
        }

        .hero h1 {
            font-family: var(--font-cn);
            font-weight: 700;
            font-size: clamp(32px, 5vw, 52px);
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .hero h1 .highlight {
            color: var(--gold);
            text-shadow: 0 0 40px rgba(212, 168, 67, 0.5);
        }

        .hero-subtitle {
            font-size: clamp(15px, 2vw, 18px);
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 36px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
            margin-bottom: 20px;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 999px;
            background: var(--gold);
            color: #0B1622;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.01em;
            box-shadow: 0 0 24px rgba(212, 168, 67, 0.5), 0 0 60px rgba(212, 168, 67, 0.2);
            transition: all 0.35s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 36px rgba(240, 192, 96, 0.7), 0 0 80px rgba(240, 192, 96, 0.3);
            transform: translateY(-2px);
            background: #e0b850;
        }

        .btn-secondary {
            display: inline-block;
            padding: 13px 30px;
            border-radius: 999px;
            background: transparent;
            color: var(--gold);
            font-weight: 600;
            font-size: 16px;
            border: 1.5px solid var(--gold);
            transition: all 0.35s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(212, 168, 67, 0.1);
            box-shadow: 0 0 22px rgba(212, 168, 67, 0.3);
            transform: translateY(-2px);
        }

        .hero-trust {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 0.03em;
        }

        /* ========== 区块通用 ========== */
        .section {
            padding: var(--section-gap-mobile) 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: var(--section-gap-tablet) 0;
            }
        }
        @media (min-width: 1025px) {
            .section {
                padding: var(--section-gap-desktop) 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 56px;
            }
        }

        .section-header h2 {
            font-weight: 600;
            font-size: clamp(24px, 3.5vw, 36px);
            letter-spacing: -0.01em;
            line-height: 1.25;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            gap: 14px;
            position: relative;
        }

        .section-header h2::before {
            content: '';
            display: inline-block;
            width: 3px;
            height: 20px;
            border-radius: 3px;
            background: var(--gold);
            flex-shrink: 0;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* ========== 痛点区块 ========== */
        .pain-cards {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--card-gap-mobile);
        }

        @media (min-width: 640px) {
            .pain-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1025px) {
            .pain-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: var(--card-gap-desktop);
            }
        }

        .pain-card {
            background: var(--bg-card-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-right: 2px solid rgba(232, 93, 63, 0.25);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        @media (max-width: 639px) {
            .pain-card {
                backdrop-filter: blur(9px);
                -webkit-backdrop-filter: blur(9px);
            }
        }

        .pain-card::after {
            content: '';
            position: absolute;
            top: -30px;
            right: -40px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 93, 63, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .pain-card:hover {
            border-right-color: rgba(232, 93, 63, 0.5);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(232, 93, 63, 0.04);
            transform: translateY(-4px);
        }

        .pain-card-icon {
            width: 36px;
            height: 36px;
            margin-bottom: 14px;
            color: var(--coral-weak);
        }

        .pain-card h3 {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .pain-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .pain-card .warn-mark {
            position: absolute;
            top: 14px;
            right: 16px;
            font-size: 28px;
            color: rgba(232, 93, 63, 0.35);
            font-weight: 700;
            line-height: 1;
            pointer-events: none;
        }

        /* ========== 解决方案区块 ========== */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (min-width: 1025px) {
            .solution-grid {
                grid-template-columns: 4fr 6fr;
                gap: 50px;
            }
        }

        .solution-left {
            position: relative;
        }

        .solution-img-placeholder {
            width: 100%;
            aspect-ratio: 4 / 3;
            border-radius: var(--radius-lg);
            background-image: url('/assets/images/coverpic/cover-1.webp');
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
            overflow: hidden;
        }

        .solution-img-placeholder::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 22, 34, 0.5) 0%, transparent 60%);
            pointer-events: none;
        }

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

        @media (min-width: 1025px) {
            .solution-text {
                font-size: 16px;
            }
        }

        .solution-steps {
            list-style: none;
            position: relative;
            padding-left: 0;
        }

        .solution-steps::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 8px;
            bottom: 8px;
            width: 1px;
            background: rgba(212, 168, 67, 0.25);
        }

        .solution-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 12px 0;
            position: relative;
        }

        .solution-step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(212, 168, 67, 0.1);
            border: 1.5px solid rgba(212, 168, 67, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 16px;
            color: var(--gold);
            z-index: 1;
        }

        .solution-step-content h4 {
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .solution-step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== 核心优势区块 ========== */
        .adv-cards {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--card-gap-mobile);
        }

        @media (min-width: 640px) {
            .adv-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1025px) {
            .adv-cards {
                grid-template-columns: repeat(4, 1fr);
                gap: var(--card-gap-desktop);
            }
        }

        .adv-card {
            background: var(--bg-card-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 30px 22px;
            clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        @media (max-width: 639px) {
            .adv-card {
                backdrop-filter: blur(9px);
                -webkit-backdrop-filter: blur(9px);
                clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
            }
        }

        .adv-card::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .adv-card:hover {
            transform: translateY(-6px);
            border-color: var(--gold-border-hover);
            box-shadow: var(--shadow-card-hover), 0 0 40px rgba(212, 168, 67, 0.1);
        }

        .adv-card-icon {
            width: 40px;
            height: 40px;
            margin-bottom: 16px;
            color: var(--gold);
        }

        .adv-card h3 {
            font-weight: 600;
            font-size: 17px;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .adv-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* ========== 数据指标区块 ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px 16px;
            position: relative;
            text-align: center;
        }

        @media (min-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }

        .stats-row::after {
            content: '';
            position: absolute;
            left: 5%;
            right: 5%;
            top: 50%;
            height: 1px;
            background: rgba(212, 168, 67, 0.18);
            pointer-events: none;
            z-index: 0;
        }

        @media (max-width: 639px) {
            .stats-row::after {
                display: none;
            }
        }

        .stat-item {
            position: relative;
            z-index: 1;
            padding: 8px 0;
        }

        .stat-number {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: clamp(40px, 6vw, 54px);
            color: var(--gold);
            text-shadow: 0 0 30px rgba(212, 168, 67, 0.4);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
            letter-spacing: -0.01em;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
            font-weight: 400;
        }

        /* ========== 客户证言区块 ========== */
        .testimonial-cards {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--card-gap-mobile);
        }

        @media (min-width: 768px) {
            .testimonial-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: var(--card-gap-desktop);
            }
        }

        .testimonial-card {
            background: var(--bg-card-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-left: 4px solid var(--gold);
            border-radius: var(--radius-md);
            border-top-left-radius: 6px;
            border-bottom-left-radius: 6px;
            padding: 24px 20px 20px;
            position: relative;
            transition: all 0.35s ease;
        }

        @media (max-width: 639px) {
            .testimonial-card {
                backdrop-filter: blur(9px);
                -webkit-backdrop-filter: blur(9px);
            }
        }

        @media (min-width: 768px) {
            .testimonial-card:nth-child(2) {
                margin-top: 12px;
            }
        }

        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
            border-left-color: var(--gold-glow);
        }

        .testimonial-quote {
            position: absolute;
            top: 10px;
            left: 16px;
            font-size: 48px;
            color: rgba(212, 168, 67, 0.18);
            line-height: 1;
            pointer-events: none;
            font-family: serif;
        }

        .testimonial-body {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-primary);
            margin-bottom: 14px;
            padding-top: 8px;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
        }

        .testimonial-role {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        /* ========== FAQ 区块 ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .faq-item {
            background: rgba(18, 30, 50, 0.35);
            transition: background 0.3s ease;
        }

        .faq-item.open {
            background: rgba(18, 30, 50, 0.6);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            background: none;
            font-family: var(--font-cn);
            letter-spacing: 0.01em;
            position: relative;
            gap: 12px;
        }

        .faq-item.open .faq-question {
            border-left: 3px solid var(--gold);
            padding-left: 17px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1.5px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            color: var(--gold);
            font-size: 16px;
            line-height: 1;
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            background: rgba(212, 168, 67, 0.15);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px;
        }

        @media (min-width: 1025px) {
            .faq-item:first-child .faq-answer {
                max-height: 200px;
                padding: 0 20px 16px;
            }
            .faq-item:first-child {
                background: rgba(18, 30, 50, 0.6);
            }
            .faq-item:first-child .faq-question {
                border-left: 3px solid var(--gold);
                padding-left: 17px;
            }
            .faq-item:first-child .faq-icon {
                background: rgba(212, 168, 67, 0.15);
                transform: rotate(45deg);
            }
        }

        /* ========== 终局 CTA 区块 ========== */
        .cta-section {
            padding: var(--section-gap-mobile) 0;
        }

        @media (min-width: 768px) {
            .cta-section {
                padding: var(--section-gap-tablet) 0;
            }
        }
        @media (min-width: 1025px) {
            .cta-section {
                padding: var(--section-gap-desktop) 0;
            }
        }

        .cta-card {
            max-width: 900px;
            margin: 0 auto;
            background: #111D2E;
            background-image: radial-gradient(ellipse at center, rgba(212, 168, 67, 0.07) 0%, transparent 70%);
            border: 1px solid rgba(212, 168, 67, 0.25);
            border-radius: var(--radius-lg);
            padding: 50px 28px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 192, 96, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-card h2 {
            font-weight: 600;
            font-size: clamp(22px, 3vw, 28px);
            color: var(--text-primary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            line-height: 1.35;
        }

        .cta-card .btn-primary {
            animation: breathe 2.5s ease-in-out infinite;
            position: relative;
            z-index: 1;
        }

        @keyframes breathe {
            0%,
            100% {
                box-shadow: 0 0 24px rgba(212, 168, 67, 0.5), 0 0 60px rgba(212, 168, 67, 0.2);
            }
            50% {
                box-shadow: 0 0 36px rgba(240, 192, 96, 0.7), 0 0 80px rgba(240, 192, 96, 0.35);
            }
        }

        @media (max-width: 639px) {
            .cta-card .btn-primary {
                animation: breatheMobile 2.5s ease-in-out infinite;
            }
            @keyframes breatheMobile {
                0%,
                100% {
                    box-shadow: 0 0 16px rgba(212, 168, 67, 0.4), 0 0 40px rgba(212, 168, 67, 0.15);
                }
                50% {
                    box-shadow: 0 0 24px rgba(240, 192, 96, 0.5), 0 0 50px rgba(240, 192, 96, 0.2);
                }
            }
        }

        .cta-aux-text {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-trust {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 8px;
            position: relative;
            z-index: 1;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: #090F18;
            padding: 50px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1025px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
                gap: 36px;
            }
        }

        .footer-brand .footer-logo {
            font-weight: 700;
            font-size: 20px;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(212, 168, 67, 0.15);
            border: 1.5px solid var(--gold);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            max-width: 260px;
        }

        .footer-col h4 {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 7px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

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

        .footer-col .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .footer-col .contact-item svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            color: var(--text-weak);
        }

        .social-icons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .social-icons a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1.5px solid rgba(212, 168, 67, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            color: var(--text-secondary);
        }

        .social-icons a:hover {
            background: rgba(212, 168, 67, 0.15);
            border-color: var(--gold);
            color: var(--gold);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.2);
        }

        .social-icons a svg {
            width: 16px;
            height: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ========== 响应式微调 ========== */
        @media (max-width: 639px) {
            .hero-spotlight {
                filter: blur(60px);
                opacity: 0.06;
            }
            .hero-spotlight:nth-child(1) {
                width: 250px;
                height: 250px;
            }
            .hero-spotlight:nth-child(2) {
                width: 200px;
                height: 200px;
            }
            .hero-spotlight:nth-child(3) {
                width: 180px;
                height: 180px;
            }
            .section-header h2::before {
                height: 16px;
                width: 3px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 15px;
                padding: 12px 24px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item.open .faq-question {
                padding-left: 13px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            @media (min-width: 1025px) {
                .faq-item:first-child .faq-answer {
                    padding: 0 16px 14px;
                }
                .faq-item:first-child .faq-question {
                    padding-left: 13px;
                }
            }
        }

        @media (min-width: 640px) and (max-width: 1024px) {
            .hero-spotlight {
                filter: blur(80px);
                opacity: 0.07;
            }
            .hero-spotlight:nth-child(1) {
                width: 350px;
                height: 350px;
            }
            .hero-spotlight:nth-child(2) {
                width: 300px;
                height: 300px;
            }
            .hero-spotlight:nth-child(3) {
                width: 260px;
                height: 260px;
            }
        }