/* roulang page: index */
:root {
            --brand-red: #C83A2B;
            --brand-red-dark: #A82E20;
            --brand-gray: #2B2D30;
            --brand-yellow: #F2C417;
            --brand-yellow-light: #F7D54E;
            --brand-cream: #FAF7F4;
            --brand-text: #1E1F21;
            --brand-text-secondary: #6B6D70;
            --brand-green: #2E8B57;
            --brand-border: #EBE8E4;
            --brand-input-border: #D1CFCB;
            --card-radius-lg: 12px;
            --card-radius-sm: 8px;
            --card-radius-xs: 4px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.10);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-cream);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .font-numbers {
            font-family: 'DIN Alternate', 'Arial', sans-serif;
            font-weight: 700;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 767px) {
            .container-main {
                padding: 0 16px;
            }
        }

        /* 导航 */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 68px;
            background: #FFFFFF;
            border-bottom: 1px solid transparent;
            transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
            display: flex;
            align-items: center;
        }

        .site-nav.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--brand-border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--brand-text);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-red);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--brand-text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .nav-links a:hover {
            color: var(--brand-red);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand-red);
            border-radius: 1px;
            transition: width var(--transition-smooth);
        }

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

        .nav-cta-btn {
            background: var(--brand-yellow);
            color: var(--brand-text);
            padding: 10px 22px;
            border-radius: var(--card-radius-sm);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-cta-btn:hover {
            background: var(--brand-yellow-light);
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(242, 196, 23, 0.35);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--brand-red);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

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

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(43, 45, 48, 0.96);
            z-index: 999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 32px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-overlay a {
            color: #FAF7F4;
            font-size: 22px;
            font-weight: 600;
            letter-spacing: 1px;
            transition: color var(--transition-fast);
        }

        .mobile-menu-overlay a:hover {
            color: var(--brand-yellow);
        }

        .mobile-menu-overlay .mobile-cta {
            margin-top: 8px;
            background: var(--brand-yellow);
            color: var(--brand-text);
            padding: 14px 36px;
            border-radius: var(--card-radius-sm);
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .site-nav {
                height: 60px;
            }
            .nav-logo {
                font-size: 17px;
                gap: 7px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 6px;
            }
            .nav-inner {
                padding: 0 16px;
            }
        }

        @media (min-width: 768px) {
            .mobile-menu-overlay {
                display: none !important;
            }
            .hamburger-btn {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: inline-block;
            }
        }

        /* Hero */
        #hero {
            padding-top: 100px;
            padding-bottom: 60px;
            background: var(--brand-cream);
            position: relative;
            overflow: hidden;
        }

        #hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -160px;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 58, 43, 0.04) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        #hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(242, 196, 23, 0.05) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 20px;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--brand-text-secondary);
            width: fit-content;
            letter-spacing: 0.3px;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-yellow);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(242, 196, 23, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(242, 196, 23, 0);
            }
        }

        .hero-left h1 {
            font-size: 50px;
            font-weight: 800;
            line-height: 1.15;
            color: var(--brand-text);
            letter-spacing: -0.5px;
            margin: 0;
        }

        .hero-left h1 .highlight {
            color: var(--brand-red);
            position: relative;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--brand-text-secondary);
            max-width: 460px;
            letter-spacing: 0.2px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--brand-text-secondary);
            letter-spacing: 0.2px;
        }

        .hero-trust .trust-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .hero-trust .trust-icon {
            color: var(--brand-yellow);
            font-size: 14px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            background: var(--brand-red);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--card-radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.4px;
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--brand-red-dark);
            transform: scale(1.03);
            box-shadow: 0 6px 22px rgba(200, 58, 43, 0.35);
        }

        .btn-ghost {
            display: inline-block;
            background: transparent;
            color: var(--brand-red);
            padding: 13px 30px;
            border-radius: var(--card-radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.4px;
            border: 2px solid var(--brand-red);
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-align: center;
        }

        .btn-ghost:hover {
            background: var(--brand-red);
            color: #fff;
            transform: scale(1.03);
            box-shadow: 0 6px 22px rgba(200, 58, 43, 0.25);
        }

        .hero-right {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.13);
            width: 100%;
            max-width: 500px;
        }

        .hero-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 16px;
            transition: transform var(--transition-slow);
        }

        .hero-image-wrapper:hover img {
            transform: scale(1.03);
        }

        .hero-image-accent {
            position: absolute;
            top: -18px;
            right: -18px;
            width: 70px;
            height: 70px;
            background: var(--brand-yellow);
            border-radius: 14px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--brand-text);
            box-shadow: 0 6px 20px rgba(242, 196, 23, 0.4);
            animation: float-accent 3s ease-in-out infinite;
        }

        @keyframes float-accent {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        @media (max-width: 1023px) {
            .hero-left h1 {
                font-size: 38px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-grid {
                gap: 28px;
            }
        }

        @media (max-width: 767px) {
            #hero {
                padding-top: 80px;
                padding-bottom: 40px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-right {
                order: -1;
            }
            .hero-image-wrapper {
                max-width: 90%;
                margin: 0 auto;
            }
            .hero-left {
                text-align: center;
                align-items: center;
            }
            .hero-left h1 {
                font-size: 33px;
                letter-spacing: -0.3px;
            }
            .hero-subtitle {
                font-size: 15px;
                max-width: 100%;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-trust {
                justify-content: center;
            }
            .hero-badge {
                margin: 0 auto;
            }
            .hero-image-accent {
                width: 50px;
                height: 50px;
                top: -12px;
                right: -12px;
                font-size: 20px;
                border-radius: 10px;
            }
        }

        /* 板块通用 */
        .section-block {
            padding: 70px 0;
            position: relative;
        }

        .section-block.bg-alt {
            background: #fff;
        }

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

        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--brand-text);
            margin: 0 0 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--brand-red);
            border-radius: 2px;
            margin: 0 auto 16px;
        }

        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--brand-text-secondary);
            max-width: 500px;
            margin: 0 auto;
            letter-spacing: 0.2px;
            line-height: 1.6;
        }

        @media (max-width: 767px) {
            .section-block {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* 亮点网格 */
        .highlights-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .highlight-card {
            background: #fff;
            border-radius: var(--card-radius-lg);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--brand-border);
            position: relative;
            transition: all var(--transition-smooth);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .highlight-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 40px;
            background: var(--brand-red);
            border-radius: 0 0 4px 0;
            transition: all var(--transition-smooth);
        }

        .highlight-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .highlight-card:hover::before {
            width: 8px;
            height: 56px;
        }

        .highlight-card.card-large {
            grid-row: span 2;
            padding: 32px 28px;
            gap: 16px;
        }

        .highlight-card .hl-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: #FFF8E1;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-red);
            flex-shrink: 0;
        }

        .highlight-card.card-large .hl-icon {
            width: 52px;
            height: 52px;
            font-size: 24px;
            border-radius: 12px;
        }

        .highlight-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--brand-text);
            margin: 0;
            letter-spacing: 0.2px;
            line-height: 1.3;
        }

        .highlight-card.card-large h3 {
            font-size: 22px;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--brand-text-secondary);
            margin: 0;
            line-height: 1.65;
            letter-spacing: 0.15px;
        }

        .highlight-card .hl-stat {
            font-family: 'DIN Alternate', 'Arial', sans-serif;
            font-weight: 700;
            font-size: 36px;
            color: var(--brand-red);
            line-height: 1;
            letter-spacing: -1px;
        }

        .highlight-card .hl-stat-label {
            font-size: 13px;
            color: var(--brand-text-secondary);
            letter-spacing: 0.2px;
        }

        @media (max-width: 1023px) {
            .highlights-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
                gap: 16px;
            }
            .highlight-card.card-large {
                grid-row: span 1;
                grid-column: span 2;
            }
        }

        @media (max-width: 767px) {
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .highlight-card.card-large {
                grid-column: span 1;
            }
            .highlight-card {
                padding: 20px 18px;
            }
            .highlight-card.card-large {
                padding: 24px 20px;
            }
        }

        /* 案例瀑布流 */
        .cases-masonry {
            column-count: 3;
            column-gap: 18px;
        }

        .case-card {
            break-inside: avoid;
            margin-bottom: 18px;
            background: #fff;
            border-radius: var(--card-radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--brand-border);
            transition: all var(--transition-smooth);
            cursor: default;
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .case-card .case-img-wrap {
            position: relative;
            overflow: hidden;
            line-height: 0;
        }

        .case-card .case-img-wrap img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-slow);
        }

        .case-card:hover .case-img-wrap img {
            transform: scale(1.06);
        }

        .case-card .case-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(200, 58, 43, 0.7) 0%, rgba(43, 45, 48, 0.2) 100%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
            display: flex;
            align-items: flex-end;
            justify-content: flex-start;
            padding: 20px;
        }

        .case-card:hover .case-img-overlay {
            opacity: 1;
        }

        .case-card .overlay-text {
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
        }

        .case-card .case-info {
            padding: 18px 16px;
        }

        .case-card .case-info h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--brand-text);
            margin: 0 0 8px;
            letter-spacing: 0.2px;
        }

        .case-card .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }

        .case-card .case-tag {
            font-size: 11px;
            background: #FFF0EE;
            color: var(--brand-red);
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .case-card .case-summary {
            font-size: 13px;
            color: var(--brand-text-secondary);
            margin: 0;
            line-height: 1.55;
            letter-spacing: 0.15px;
        }

        .cases-bottom-cta {
            text-align: center;
            margin-top: 28px;
        }

        @media (max-width: 1023px) {
            .cases-masonry {
                column-count: 2;
                column-gap: 14px;
            }
            .case-card {
                margin-bottom: 14px;
            }
        }

        @media (max-width: 767px) {
            .cases-masonry {
                column-count: 1;
                column-gap: 0;
            }
            .case-card {
                margin-bottom: 14px;
            }
        }

        /* 方案对比 */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--card-radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            border: 2px solid var(--brand-border);
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .compare-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .compare-card.featured {
            border-color: var(--brand-yellow);
            box-shadow: 0 4px 24px rgba(242, 196, 23, 0.2);
            position: relative;
            z-index: 1;
        }

        .compare-card .featured-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-yellow);
            color: var(--brand-text);
            padding: 6px 18px;
            border-radius: 14px;
            font-weight: 700;
            font-size: 12px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            box-shadow: 0 3px 10px rgba(242, 196, 23, 0.35);
        }

        .compare-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--brand-text);
            margin: 0;
            text-align: center;
            letter-spacing: 0.2px;
        }

        .compare-card .compare-price {
            text-align: center;
            font-family: 'DIN Alternate', 'Arial', sans-serif;
            font-weight: 700;
            font-size: 38px;
            color: var(--brand-red);
            letter-spacing: -1px;
        }

        .compare-card.featured .compare-price {
            color: #B8860B;
        }

        .compare-card .compare-features {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }

        .compare-card .compare-features li {
            font-size: 14px;
            color: var(--brand-text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
            letter-spacing: 0.15px;
        }

        .compare-card .compare-features li .feat-check {
            color: var(--brand-green);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .compare-card .compare-features li .feat-empty {
            color: #ccc;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .compare-card .btn-compare-cta {
            display: block;
            text-align: center;
            background: var(--brand-red);
            color: #fff;
            padding: 12px 20px;
            border-radius: var(--card-radius-sm);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.4px;
            transition: all var(--transition-smooth);
            cursor: pointer;
            margin-top: auto;
        }

        .compare-card .btn-compare-cta:hover {
            background: var(--brand-red-dark);
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(200, 58, 43, 0.3);
        }

        .compare-card.featured .btn-compare-cta {
            background: var(--brand-yellow);
            color: var(--brand-text);
        }
        .compare-card.featured .btn-compare-cta:hover {
            background: var(--brand-yellow-light);
            box-shadow: 0 4px 16px rgba(242, 196, 23, 0.4);
        }

        @media (max-width: 1023px) {
            .compare-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 12px;
            }
            .compare-card {
                padding: 20px 14px;
                gap: 12px;
            }
            .compare-card .compare-price {
                font-size: 30px;
            }
        }

        @media (max-width: 767px) {
            .compare-scroll-wrap {
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
                margin: 0 -8px;
                padding-left: 8px;
                padding-right: 8px;
            }
            .compare-grid {
                grid-template-columns: repeat(3, 280px);
                gap: 14px;
                width: max-content;
                min-width: 100%;
            }
            .compare-card {
                scroll-snap-align: start;
                min-width: 260px;
            }
        }

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

        .faq-item {
            border-bottom: 1px solid var(--brand-border);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            background: #fff;
            border: none;
            padding: 18px 16px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--brand-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            letter-spacing: 0.2px;
            transition: background var(--transition-fast);
            line-height: 1.4;
        }

        .faq-question:hover {
            background: #FFFBF7;
        }

        .faq-item.open .faq-question {
            background: #FFFBF7;
            border-left: 3px solid var(--brand-red);
            padding-left: 13px;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #FFF0EE;
            color: var(--brand-red);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-smooth);
            font-weight: 700;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-red);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            background: #fff;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 16px 20px 16px;
            font-size: 14.5px;
            color: var(--brand-text-secondary);
            line-height: 1.7;
            letter-spacing: 0.15px;
        }

        .faq-item.open .faq-answer-inner {
            padding-top: 4px;
        }

        @media (max-width: 767px) {
            .faq-question {
                font-size: 15px;
                padding: 15px 12px;
            }
            .faq-item.open .faq-question {
                padding-left: 9px;
            }
            .faq-answer-inner {
                padding: 0 12px 16px 12px;
                font-size: 13.5px;
            }
        }

        /* 联系 */
        #contact .contact-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 36px;
            align-items: flex-start;
        }

        .contact-form-card {
            background: #fff;
            border-radius: var(--card-radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--brand-border);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .contact-form-card .form-field {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .contact-form-card label {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-text);
            letter-spacing: 0.2px;
        }

        .contact-form-card input,
        .contact-form-card textarea {
            border: 1.5px solid var(--brand-input-border);
            border-radius: var(--card-radius-sm);
            padding: 12px 14px;
            font-size: 14px;
            color: var(--brand-text);
            background: #FAFAFA;
            transition: all var(--transition-fast);
            resize: vertical;
            letter-spacing: 0.2px;
        }

        .contact-form-card input:focus,
        .contact-form-card textarea:focus {
            border-color: var(--brand-red);
            box-shadow: 0 0 0 4px rgba(200, 58, 43, 0.08);
            background: #fff;
            outline: none;
        }

        .contact-form-card textarea {
            min-height: 100px;
        }

        .btn-submit {
            background: var(--brand-yellow);
            color: var(--brand-text);
            padding: 14px 28px;
            border-radius: var(--card-radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.5px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            width: 100%;
            text-align: center;
        }

        .btn-submit:hover {
            background: var(--brand-yellow-light);
            transform: scale(1.02);
            box-shadow: 0 6px 22px rgba(242, 196, 23, 0.4);
        }

        .contact-info-card {
            background: #fff;
            border-radius: var(--card-radius-lg);
            padding: 30px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--brand-border);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-info-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-text);
            margin: 0;
            letter-spacing: 0.2px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--brand-text-secondary);
            line-height: 1.5;
            letter-spacing: 0.15px;
        }

        .contact-info-item .ci-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: #FFF8E1;
            color: var(--brand-red);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }

        .contact-qr-placeholder {
            width: 120px;
            height: 120px;
            border-radius: 10px;
            background: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #bbb;
            font-size: 12px;
            letter-spacing: 0.3px;
            border: 1.5px dashed var(--brand-border);
            margin: 0 auto;
            overflow: hidden;
        }

        .contact-qr-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
        }

        @media (max-width: 767px) {
            #contact .contact-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .contact-form-card {
                padding: 22px 18px;
            }
            .contact-info-card {
                padding: 22px 18px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--brand-gray);
            color: #FAF7F4;
            padding: 32px 0;
            text-align: center;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }

        .footer-logo-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.5px;
        }

        .footer-logo-row .fl-icon {
            width: 30px;
            height: 30px;
            background: var(--brand-red);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #fff;
        }

        .footer-tagline {
            font-size: 13px;
            color: #c5c3c0;
            letter-spacing: 0.3px;
        }

        .footer-bottom {
            font-size: 12px;
            color: #a09d9a;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            letter-spacing: 0.2px;
        }

        .footer-bottom a {
            color: #c5c3c0;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--brand-yellow);
        }

        .footer-divider-dot {
            color: #555;
        }

        /* 提交成功提示 */
        .form-success-msg {
            display: none;
            text-align: center;
            padding: 20px;
            color: var(--brand-green);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.3px;
        }

        .form-success-msg.show {
            display: block;
        }

        .form-fields-wrap.hidden {
            display: none;
        }