/* roulang page: index */
:root {
            --color-primary: #4D6F8C;
            --color-primary-dark: #3A5A78;
            --color-accent: #C49B7C;
            --color-accent-dark: #B08868;
            --color-accent-light: #D4B896;
            --color-bg: #FAFAF7;
            --color-white: #FFFFFF;
            --color-text: #3A4A5A;
            --color-heading: #1E2D3A;
            --color-muted: #7B8A96;
            --color-border: #E8EAEC;
            --color-bg-tint: #F4F6F8;
            --color-footer: #1E2D3A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 6px;
            --radius-input: 8px;
            --shadow-card: 0 1px 3px rgba(30, 45, 58, 0.06), 0 4px 16px rgba(30, 45, 58, 0.04);
            --shadow-card-hover: 0 2px 6px rgba(30, 45, 58, 0.10), 0 8px 24px rgba(30, 45, 58, 0.06);
            --shadow-nav: 0 1px 0 rgba(30, 45, 58, 0.06);
            --transition-base: 280ms ease-out;
            --transition-fast: 220ms ease-out;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "SF Pro Display", sans-serif;
            --container-max: 1200px;
            --nav-height-desktop: 72px;
            --nav-height-mobile: 60px;
            --section-gap: 120px;
            --section-gap-mobile: 80px;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 26px;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

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

        /* ========== 导航 ========== */
        .nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height-desktop);
            background: rgba(250, 250, 247, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-fast);
        }
        .nav.scrolled {
            box-shadow: var(--shadow-card);
        }
        .nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 18px;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-cn {
            font-family: var(--font-cn);
            font-weight: 700;
            font-size: 20px;
            color: var(--color-heading);
        }
        .nav-logo .logo-divider {
            width: 1px;
            height: 18px;
            background: var(--color-border);
            display: inline-block;
            margin: 0 2px;
        }
        .nav-logo .logo-en {
            font-family: var(--font-en);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 2px;
            color: var(--color-muted);
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
        }
        .nav-links a {
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 1px;
            transition: width var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--color-primary);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 50px;
            transition: background var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .nav-cta:hover {
            background: var(--color-accent-dark);
            transform: translateY(-1px);
        }
        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            padding: 8px 4px;
            z-index: 1002;
            background: none;
            border: none;
        }
        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 1px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }
        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(30, 45, 58, 0.5);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-fast);
        }
        .nav-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .nav-side-panel {
            position: fixed;
            top: 0;
            right: -280px;
            width: 280px;
            height: 100vh;
            background: var(--color-white);
            z-index: 999;
            padding: 80px 28px 28px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: right var(--transition-fast);
            box-shadow: -4px 0 20px rgba(30, 45, 58, 0.12);
        }
        .nav-side-panel.active {
            right: 0;
        }
        .nav-side-panel a {
            font-size: 16px;
            font-weight: 500;
            color: var(--color-heading);
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border);
            transition: color var(--transition-fast);
        }
        .nav-side-panel a:hover {
            color: var(--color-accent);
        }
        .nav-side-panel .nav-cta {
            text-align: center;
            margin-top: 8px;
            border-radius: 50px;
        }

        /* ========== Hero ========== */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(175deg, #F4F6F8 0%, #FAFAF7 40%);
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .hero-content {
            max-width: 520px;
        }
        .hero-content h1 {
            font-family: var(--font-cn);
            font-size: 44px;
            line-height: 56px;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-content h1 .line-break {
            display: block;
        }
        .hero-content .hero-subtitle {
            font-size: 18px;
            line-height: 28px;
            color: var(--color-muted);
            margin-bottom: 32px;
            max-width: 420px;
        }
        .hero-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            cursor: pointer;
            border: 2px solid transparent;
            text-align: center;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(196, 155, 124, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(77, 111, 140, 0.25);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
            border-radius: 50px;
        }
        .btn-white-gold {
            background: #fff;
            color: var(--color-accent);
            border-color: #fff;
            font-weight: 700;
        }
        .btn-white-gold:hover {
            background: #fefefe;
            color: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-image-wrapper {
            position: relative;
            width: 100%;
            max-width: 560px;
            aspect-ratio: 4/3;
        }
        .hero-image-accent {
            position: absolute;
            top: 8px;
            left: 8px;
            width: 100%;
            height: 100%;
            background: var(--color-accent);
            border-radius: var(--radius-card);
            z-index: 0;
            opacity: 0.7;
        }
        .hero-image-main {
            position: relative;
            z-index: 1;
            width: 100%;
            height: 100%;
            border-radius: var(--radius-card);
            overflow: hidden;
            transform: rotate(2deg);
            box-shadow: var(--shadow-card-hover);
            transition: transform var(--transition-base);
        }
        .hero-image-main:hover {
            transform: rotate(1deg) scale(1.02);
        }
        .hero-image-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-header .section-tag {
            font-family: var(--font-en);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }
        .section-header h2 {
            font-family: var(--font-cn);
            font-size: 32px;
            line-height: 40px;
            font-weight: 700;
            color: var(--color-heading);
            letter-spacing: -0.3px;
        }
        .section-header .section-desc {
            font-size: 16px;
            color: var(--color-muted);
            margin-top: 10px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 功能分组 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }
        .features-grid-row2 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .feature-card .feature-icon {
            width: 36px;
            height: 36px;
            margin-bottom: 16px;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: flex-start;
        }
        .feature-card .feature-icon svg {
            width: 36px;
            height: 36px;
            stroke: var(--color-primary);
            stroke-width: 1.5px;
            fill: none;
        }
        .feature-card h3 {
            font-family: var(--font-cn);
            font-size: 20px;
            line-height: 28px;
            font-weight: 600;
            color: var(--color-heading);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 15px;
            line-height: 24px;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .feature-card .feature-stat {
            font-family: var(--font-en);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.5px;
        }
        .feature-card .feature-stat-unit {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted);
            margin-left: 2px;
        }
        .feature-card-wide {
            grid-column: span 1;
        }

        /* ========== 使用场景 ========== */
        .scene-block {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 80px;
        }
        .scene-block:last-child {
            margin-bottom: 0;
        }
        .scene-block.reverse {
            grid-template-columns: 7fr 5fr;
        }
        .scene-block.reverse .scene-image {
            order: 2;
        }
        .scene-block.reverse .scene-text {
            order: 1;
        }
        .scene-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }
        .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .scene-image:hover img {
            transform: scale(1.04);
        }
        .scene-text h3 {
            font-family: var(--font-cn);
            font-size: 24px;
            line-height: 32px;
            font-weight: 600;
            color: var(--color-heading);
            margin-bottom: 14px;
        }
        .scene-text p {
            font-size: 16px;
            line-height: 26px;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .scene-text ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .scene-text ul li {
            font-size: 15px;
            color: var(--color-text);
            padding-left: 20px;
            position: relative;
            line-height: 24px;
        }
        .scene-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        /* ========== 成功案例 ========== */
        .cases-section {
            background: linear-gradient(180deg, #F4F6F8 0%, transparent 60%);
            padding: var(--section-gap) 0;
        }
        .cases-stats {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 40px;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-card .stat-number {
            font-family: var(--font-en);
            font-size: 48px;
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            background: linear-gradient(135deg, #4D6F8C 0%, #3A5A78 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-card .stat-unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            -webkit-text-fill-color: var(--color-primary);
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: var(--color-muted);
            margin-top: 4px;
        }
        .case-story-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 5fr 7fr;
            transition: all var(--transition-base);
        }
        .case-story-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .case-story-image {
            aspect-ratio: 4/3;
            overflow: hidden;
        }
        .case-story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .case-story-card:hover .case-story-image img {
            transform: scale(1.05);
        }
        .case-story-content {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .case-story-content h3 {
            font-size: 20px;
            line-height: 28px;
            font-weight: 600;
            color: var(--color-heading);
            margin-bottom: 12px;
        }
        .case-story-content .case-quote {
            font-size: 16px;
            line-height: 26px;
            color: var(--color-text);
            font-style: italic;
            border-left: 3px solid var(--color-accent);
            padding-left: 16px;
            margin-bottom: 16px;
        }
        .case-story-content .case-author {
            font-size: 14px;
            color: var(--color-muted);
            font-weight: 500;
        }

        /* ========== 价格套餐 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            align-items: start;
        }
        .pricing-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 2px solid transparent;
            transition: all var(--transition-base);
            position: relative;
            text-align: center;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .pricing-card.featured {
            border-color: var(--color-accent);
            padding-top: 48px;
            padding-bottom: 48px;
            margin-top: -16px;
            z-index: 2;
            box-shadow: var(--shadow-card-hover);
        }
        .pricing-card.featured .pricing-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 50px;
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            letter-spacing: 0.5px;
        }
        .pricing-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-heading);
            margin-bottom: 8px;
        }
        .pricing-card .price {
            font-family: var(--font-en);
            font-size: 54px;
            font-weight: 700;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 4px;
        }
        .pricing-card .price-period {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 20px;
        }
        .pricing-card ul {
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 24px;
            padding: 0 8px;
        }
        .pricing-card ul li {
            font-size: 14px;
            color: var(--color-text);
            padding-left: 22px;
            position: relative;
            line-height: 22px;
        }
        .pricing-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 14px;
            height: 14px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23C49B7C' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
        }
        .pricing-card .btn {
            width: 100%;
        }
        .pricing-card.featured .btn {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }
        .pricing-card.featured .btn:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-heading);
            gap: 16px;
            user-select: none;
            transition: color var(--transition-fast);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 16px;
            height: 16px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-text);
            border-radius: 1px;
            transition: transform var(--transition-fast);
        }
        .faq-icon::before {
            width: 12px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 12px;
            transform: rotate(0deg);
        }
        .faq-item.open .faq-icon::after {
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-fast), padding var(--transition-fast);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 26px;
            color: var(--color-text);
        }

        /* ========== 终极CTA ========== */
        .cta-banner {
            background: linear-gradient(135deg, #C49B7C 0%, #D4B896 40%, #C49B7C 100%);
            padding: 80px 0;
            text-align: center;
        }
        .cta-banner h2 {
            font-size: 32px;
            line-height: 40px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-banner .cta-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
            max-width: 460px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: var(--color-footer);
            padding: 56px 0 28px;
            color: var(--color-muted);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 14px;
            line-height: 22px;
            color: var(--color-muted);
            display: block;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-brand .logo-cn {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-brand .logo-en {
            font-size: 11px;
            letter-spacing: 2px;
            color: var(--color-muted);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 4px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            border-color: var(--color-accent);
            background: rgba(196, 155, 124, 0.1);
        }
        .footer-social svg {
            width: 16px;
            height: 16px;
            fill: var(--color-muted);
            transition: fill var(--transition-fast);
        }
        .footer-social a:hover svg {
            fill: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: var(--color-muted);
        }
        .footer-bottom a {
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1023px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content {
                max-width: 100%;
                text-align: center;
                order: 1;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                order: 0;
            }
            .hero-image-wrapper {
                max-width: 440px;
                margin: 0 auto;
            }
            .hero-content h1 {
                font-size: 34px;
                line-height: 44px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .features-grid-row2 {
                grid-template-columns: 1fr 1fr;
            }
            .features-grid-row2 .feature-card:last-child {
                grid-column: span 2;
            }
            .scene-block,
            .scene-block.reverse {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .scene-block.reverse .scene-image {
                order: 0;
            }
            .scene-block.reverse .scene-text {
                order: 1;
            }
            .cases-stats {
                grid-template-columns: 1fr 1fr;
            }
            .cases-stats .stat-card:last-child {
                grid-column: span 2;
            }
            .case-story-card {
                grid-template-columns: 1fr;
            }
            .case-story-image {
                aspect-ratio: 16/9;
                max-height: 240px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .pricing-card.featured {
                margin-top: 0;
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .pricing-card.featured .pricing-badge {
                top: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-header h2 {
                font-size: 26px;
                line-height: 34px;
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav {
                height: var(--nav-height-mobile);
            }
            .nav-logo .logo-en {
                display: none;
            }
            .nav-logo .logo-divider {
                display: none;
            }
            .hero {
                padding: 100px 0 60px;
            }
            .hero-content h1 {
                font-size: 28px;
                line-height: 36px;
            }
            .hero-content .hero-subtitle {
                font-size: 15px;
                line-height: 24px;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .hero-image-wrapper {
                max-width: 100%;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .features-grid-row2 {
                grid-template-columns: 1fr;
            }
            .features-grid-row2 .feature-card:last-child {
                grid-column: span 1;
            }
            .cases-stats {
                grid-template-columns: 1fr;
            }
            .cases-stats .stat-card:last-child {
                grid-column: span 1;
            }
            .stat-card .stat-number {
                font-size: 38px;
            }
            .pricing-grid {
                max-width: 100%;
            }
            .pricing-card .price {
                font-size: 42px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-header h2 {
                font-size: 22px;
                line-height: 30px;
            }
            .section {
                padding: 60px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .cta-banner h2 {
                font-size: 24px;
                line-height: 32px;
            }
            .scene-text h3 {
                font-size: 20px;
                line-height: 28px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 24px;
                line-height: 32px;
            }
            .hero-image-accent {
                display: none;
            }
            .hero-image-main {
                transform: rotate(0deg);
            }
            .hero-image-main:hover {
                transform: rotate(0deg) scale(1.01);
            }
            .feature-card {
                padding: 24px 20px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            .pricing-card {
                padding: 24px 20px;
            }
            .nav-side-panel {
                width: 260px;
            }
        }