/* roulang page: index */
:root {
            --deep-blue: #0B1E33;
            --stream-gold: #C5964B;
            --bg-warm-gray: #F8F9FA;
            --card-white: #FFFFFF;
            --text-primary: #1a1a2e;
            --text-secondary: #5a5f6b;
            --text-muted: #8a8f99;
            --border-light: rgba(0, 0, 0, 0.06);
            --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 20px 48px -16px rgba(0, 0, 0, 0.16);
            --shadow-nav: 0 4px 24px rgba(0, 0, 0, 0.18);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-serif: 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', 'LiSong Pro', serif;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-warm-gray);
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-smooth);
        }
        a:focus-visible {
            outline: 2px solid var(--stream-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-sans);
        }
        button:focus-visible {
            outline: 2px solid var(--stream-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid #d5d8de;
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            width: 100%;
            transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
            background: #fff;
            color: var(--text-primary);
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--stream-gold);
            box-shadow: 0 0 0 3px rgba(197, 150, 75, 0.1);
        }
        input::placeholder,
        textarea::placeholder {
            color: var(--text-muted);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ==================== 导航 ==================== */
        .glass-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: all var(--transition-smooth);
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
        }
        .glass-nav.scrolled {
            background: rgba(11, 30, 51, 0.94);
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-nav);
            padding: 10px 0;
        }
        .glass-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1248px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .nav-logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo-svg {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
        }
        .nav-brand-name {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.04em;
            color: #fff;
            white-space: nowrap;
            transition: color var(--transition-smooth);
        }
        .glass-nav.scrolled .nav-brand-name {
            color: #fff;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }
        .nav-links a {
            display: block;
            padding: 8px 15px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: 6px;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.02em;
            position: relative;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-links a.active-link {
            color: var(--stream-gold);
        }
        .nav-links a.active-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--stream-gold);
            border-radius: 1px;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            border-radius: 30px;
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: var(--stream-gold);
            border-color: var(--stream-gold);
            color: #fff;
            box-shadow: 0 8px 28px rgba(197, 150, 75, 0.35);
        }
        .glass-nav.scrolled .nav-cta-btn {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .glass-nav.scrolled .nav-cta-btn:hover {
            background: var(--stream-gold);
            border-color: var(--stream-gold);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            width: 36px;
            height: 36px;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            cursor: pointer;
            z-index: 1001;
            padding: 4px;
        }
        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -5px);
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 30, 51, 0.97);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 40px;
        }
        .mobile-menu-panel.show {
            display: flex;
        }
        .mobile-menu-panel a {
            font-size: 20px;
            font-weight: 500;
            color: #fff;
            padding: 10px 20px;
            border-radius: 8px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.04em;
        }
        .mobile-menu-panel a:hover {
            color: var(--stream-gold);
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-menu-panel .mobile-cta {
            margin-top: 16px;
            padding: 14px 32px;
            background: var(--stream-gold);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.03em;
        }

        /* ==================== Hero ==================== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--deep-blue);
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 40%, rgba(197, 150, 75, 0.25) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 220, 150, 0.2) 0%, transparent 50%),
                linear-gradient(180deg, rgba(11, 30, 51, 0.65) 0%, rgba(11, 30, 51, 0.82) 100%);
            pointer-events: none;
        }
        .hero-content-wrap {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
            width: 100%;
            max-width: 1248px;
            margin: 0 auto;
            padding: 120px 24px 80px;
        }
        .hero-left {
            flex: 1;
            max-width: 560px;
        }
        .hero-tag {
            display: inline-block;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.06em;
            color: var(--stream-gold);
            border: 1px solid rgba(197, 150, 75, 0.5);
            border-radius: 30px;
            margin-bottom: 20px;
            background: rgba(11, 30, 51, 0.4);
            backdrop-filter: blur(4px);
        }
        .hero-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 52px;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .hero-title .gold-highlight {
            color: var(--stream-gold);
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
            margin-bottom: 32px;
            font-weight: 400;
            letter-spacing: 0.02em;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: var(--stream-gold);
            color: #fff;
            border-radius: 30px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            box-shadow: 0 6px 22px rgba(197, 150, 75, 0.3);
        }
        .btn-primary:hover {
            background: #A67C3D;
            box-shadow: 0 10px 32px rgba(166, 124, 61, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 30px;
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }
        .hero-right-card {
            flex-shrink: 0;
            width: 340px;
            background: rgba(255, 255, 255, 0.09);
            backdrop-filter: blur(28px) saturate(160%);
            -webkit-backdrop-filter: blur(28px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            color: #fff;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            animation: floatCard 5s ease-in-out infinite;
        }
        @keyframes floatCard {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }
        .hero-card-label {
            font-size: 11px;
            letter-spacing: 0.08em;
            color: var(--stream-gold);
            text-transform: uppercase;
            margin-bottom: 6px;
            font-weight: 500;
        }
        .hero-card-value {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .hero-card-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
            margin: 16px 0;
        }
        .hero-card-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
        }
        .hero-card-badge {
            display: inline-block;
            padding: 5px 12px;
            background: rgba(197, 150, 75, 0.25);
            border: 1px solid rgba(197, 150, 75, 0.4);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--stream-gold);
            letter-spacing: 0.05em;
        }

        /* ==================== 板块通用 ==================== */
        .section-block {
            padding: 90px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--stream-gold);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 38px;
            line-height: 1.3;
            color: var(--deep-blue);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
            letter-spacing: 0.02em;
            margin-bottom: 40px;
        }

        /* ==================== 核心业务 - 错落网格 ==================== */
        .services-masonry {
            display: grid;
            grid-template-columns: 1.4fr 0.9fr 0.9fr;
            grid-template-rows: auto auto auto;
            gap: 20px;
        }
        .service-card {
            background: var(--card-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
            border-left: 4px solid transparent;
            cursor: default;
        }
        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-left-color: var(--stream-gold);
        }
        .service-card-img-wrap {
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }
        .service-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .service-card:hover .service-card-img-wrap img {
            transform: scale(1.04);
        }
        .service-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 30, 51, 0.7) 100%);
            pointer-events: none;
        }
        .service-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-num {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 900;
            color: rgba(197, 150, 75, 0.18);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .service-card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 20px;
            color: var(--deep-blue);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .service-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            letter-spacing: 0.02em;
        }
        .service-card-sm .service-card-img-wrap {
            aspect-ratio: 4 / 3;
        }
        .service-card-sm .service-card-body {
            padding: 16px 18px 20px;
        }
        .service-card-sm .service-card-title {
            font-size: 17px;
        }
        /* 网格定位 */
        .sc-1 {
            grid-column: 1;
            grid-row: 1 / 3;
        }
        .sc-2 {
            grid-column: 2;
            grid-row: 1;
        }
        .sc-3 {
            grid-column: 3;
            grid-row: 1;
        }
        .sc-4 {
            grid-column: 2;
            grid-row: 2;
        }
        .sc-5 {
            grid-column: 3;
            grid-row: 2;
        }
        .sc-6 {
            grid-column: 1 / 4;
            grid-row: 3;
            flex-direction: row;
            border-left: 4px solid transparent;
        }
        .sc-6 .service-card-img-wrap {
            width: 35%;
            aspect-ratio: auto;
            min-height: 180px;
            flex-shrink: 0;
        }
        .sc-6 .service-card-body {
            flex: 1;
            padding: 24px 28px;
        }
        .sc-6:hover {
            border-left-color: var(--stream-gold);
        }

        /* ==================== 尊享优势 ==================== */
        .advantages-section {
            background: var(--deep-blue);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .advantages-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(197, 150, 75, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .adv-item {
            padding: 28px 16px;
        }
        .adv-number {
            font-family: var(--font-serif);
            font-size: 48px;
            font-weight: 900;
            color: var(--stream-gold);
            letter-spacing: 0.03em;
            line-height: 1;
            margin-bottom: 8px;
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 4px;
        }
        .adv-number .adv-unit {
            font-size: 20px;
            font-weight: 600;
            color: rgba(197, 150, 75, 0.8);
        }
        .adv-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.04em;
            font-weight: 500;
        }

        /* ==================== 精选案例 ==================== */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--card-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .case-card-img-wrap {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            position: relative;
        }
        .case-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            filter: brightness(0.7) saturate(0.85) hue-rotate(-5deg);
        }
        .case-card:hover .case-card-img-wrap img {
            transform: scale(1.05);
            filter: brightness(0.8) saturate(0.9) hue-rotate(-3deg);
        }
        .case-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 30, 51, 0.2) 0%, rgba(11, 30, 51, 0.75) 100%);
            pointer-events: none;
        }
        .case-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            background: rgba(197, 150, 75, 0.85);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.05em;
            border-radius: 20px;
            z-index: 2;
        }
        .case-card-body {
            padding: 20px 22px 24px;
        }
        .case-card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 19px;
            color: var(--deep-blue);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .case-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ==================== FAQ ==================== */
        .faq-section {
            background: #fff;
            padding: 90px 0;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }
        .faq-item.open {
            background: #fafbfc;
            border-color: rgba(197, 150, 75, 0.25);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
            font-weight: 600;
            font-size: 16px;
            color: var(--deep-blue);
            letter-spacing: 0.02em;
            transition: color var(--transition-smooth);
        }
        .faq-question:hover {
            color: var(--stream-gold);
        }
        .faq-diamond {
            width: 10px;
            height: 10px;
            background: var(--stream-gold);
            transform: rotate(45deg);
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            border-radius: 1px;
        }
        .faq-item.open .faq-diamond {
            transform: rotate(135deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px 0 48px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            letter-spacing: 0.02em;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 24px 20px 48px;
        }

        /* ==================== 预约咨询 ==================== */
        .contact-section {
            padding: 90px 0;
            background: var(--bg-warm-gray);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }
        .contact-form-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }
        .contact-form-wrap .form-row {
            margin-bottom: 16px;
        }
        .contact-form-wrap label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .contact-form-wrap .required-star {
            color: #c0392b;
        }
        .contact-form-wrap textarea {
            min-height: 100px;
            resize: vertical;
        }
        .contact-map-placeholder {
            background: #e8eaef;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-card);
        }
        .contact-map-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .contact-map-overlay {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 24px;
            background: rgba(11, 30, 51, 0.75);
            border-radius: var(--radius-md);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .contact-map-overlay .map-pin-icon {
            font-size: 36px;
            margin-bottom: 8px;
        }
        .contact-map-overlay p {
            font-size: 15px;
            letter-spacing: 0.03em;
            font-weight: 500;
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: var(--deep-blue);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 28px;
            font-size: 14px;
            letter-spacing: 0.03em;
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            max-width: 1248px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.04em;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-smooth);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--stream-gold);
        }
        .footer-bottom {
            text-align: center;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.03em;
        }

        /* ==================== 响应式 ==================== */
        @media (max-width: 1024px) {
            .services-masonry {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .sc-1 {
                grid-column: 1 / 3;
                grid-row: auto;
            }
            .sc-2 {
                grid-column: 1;
                grid-row: auto;
            }
            .sc-3 {
                grid-column: 2;
                grid-row: auto;
            }
            .sc-4 {
                grid-column: 1;
                grid-row: auto;
            }
            .sc-5 {
                grid-column: 2;
                grid-row: auto;
            }
            .sc-6 {
                grid-column: 1 / 3;
                grid-row: auto;
                flex-direction: column;
            }
            .sc-6 .service-card-img-wrap {
                width: 100%;
                aspect-ratio: 16 / 10;
                min-height: auto;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .hero-content-wrap {
                flex-direction: column;
                text-align: center;
                gap: 32px;
                padding: 140px 24px 60px;
            }
            .hero-left {
                max-width: 100%;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-right-card {
                width: 280px;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .nav-links {
                display: none;
            }
            .nav-cta-btn {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .glass-nav .nav-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-right-card {
                width: 100%;
                max-width: 300px;
            }
            .section-title {
                font-size: 28px;
            }
            .services-masonry {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .sc-1,
            .sc-2,
            .sc-3,
            .sc-4,
            .sc-5,
            .sc-6 {
                grid-column: 1;
                grid-row: auto;
            }
            .sc-6 {
                flex-direction: column;
            }
            .sc-6 .service-card-img-wrap {
                width: 100%;
                aspect-ratio: 16 / 10;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .adv-number {
                font-size: 36px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .contact-map-placeholder {
                min-height: 280px;
            }
            .section-block {
                padding: 60px 0;
            }
            .faq-question {
                font-size: 14px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 13px;
                padding: 0 18px 0 42px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px 42px;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                font-size: 14px;
            }
            .advantages-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .adv-number {
                font-size: 30px;
            }
            .adv-label {
                font-size: 12px;
            }
            .section-title {
                font-size: 24px;
            }
            .container {
                padding: 0 14px;
            }
        }