/* roulang page: index */
:root {
            --color-charcoal: #1C1C1E;
            --color-gold: #C49A6C;
            --color-gold-light: #D4B088;
            --color-gold-dark: #A88050;
            --color-white: #FFFFFF;
            --color-soft-gray: #F7F7F9;
            --color-mid-gray: #555555;
            --color-light-border: #EEEEEE;
            --color-text: #2D2D2F;
            --color-text-light: #777777;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 14px 36px rgba(0, 0, 0, 0.09);
            --shadow-hover: 0 10px 32px rgba(0, 0, 0, 0.11);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.25s ease-out;
            --transition-slow: 0.35s ease-out;
            --font-h1: 3.25rem;
            --font-h2: 2rem;
            --font-h3: 1.25rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --section-padding-top: 120px;
            --section-padding-bottom: 100px;
            --max-width: 1280px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'STHeiti', sans-serif;
            font-size: var(--font-body);
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-white);
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
            border-radius: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: var(--font-body);
            outline: none;
        }
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Container */
        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: var(--color-white);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-smooth);
        }
        .site-nav.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
            height: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-charcoal);
            letter-spacing: 0.03em;
            flex-shrink: 0;
            z-index: 1001;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-charcoal);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-gold);
            font-weight: 900;
            font-size: 1.1rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
            font-size: var(--font-body);
            font-weight: 500;
            color: var(--color-text);
            letter-spacing: 0.02em;
        }
        .nav-links a {
            position: relative;
            padding: 4px 0;
            color: var(--color-text);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--color-gold);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--color-gold);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: var(--color-gold-dark);
            transform: scale(1.02);
            color: #fff;
        }
        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 4px;
            width: 32px;
            height: 26px;
            justify-content: center;
            align-items: center;
        }
        .hamburger span {
            display: block;
            height: 2.5px;
            background: var(--color-charcoal);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            width: 26px;
        }
        .hamburger span:nth-child(2) {
            width: 18px;
            margin-left: auto;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
            width: 26px;
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            width: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
            width: 26px;
        }

        @media (max-width: 768px) {
            .nav-inner {
                padding: 0 20px;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--color-white);
                flex-direction: column;
                align-items: flex-start;
                padding: 100px 32px 40px;
                gap: 20px;
                box-shadow: -6px 0 30px rgba(0, 0, 0, 0.08);
                transition: right var(--transition-smooth);
                z-index: 1000;
                font-size: 1.1rem;
            }
            .nav-links.open {
                right: 0;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-links .mobile-cta {
                display: inline-flex;
                margin-top: 8px;
                padding: 10px 22px;
                background: var(--color-gold);
                color: #fff;
                border-radius: var(--radius-btn);
                font-weight: 600;
                font-size: 0.95rem;
            }
        }
        @media (min-width: 769px) {
            .nav-links .mobile-cta {
                display: none;
            }
        }

        /* ========== SECTION BASICS ========== */
        .section-padding {
            padding-top: var(--section-padding-top);
            padding-bottom: var(--section-padding-bottom);
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: 60px;
                padding-bottom: 50px;
            }
            :root {
                --font-h1: 2.25rem;
                --font-h2: 1.75rem;
                --font-h3: 1.2rem;
            }
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--color-gold);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            display: block;
            width: 28px;
            height: 1px;
            background: var(--color-gold);
            opacity: 0.6;
        }
        .section-title {
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: 0.03em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: var(--font-body);
            color: var(--color-mid-gray);
            max-width: 620px;
            line-height: 1.9;
        }

        /* Decorative divider */
        .divider-line {
            width: 60px;
            height: 2px;
            background: var(--color-gold);
            opacity: 0.5;
            border-radius: 1px;
            margin: 0 auto 32px;
        }

        /* ========== HERO ========== */
        #hero {
            position: relative;
            overflow: hidden;
            background: var(--color-white);
            min-height: calc(100vh - var(--nav-height));
            display: flex;
            align-items: center;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            align-items: center;
            width: 100%;
        }
        .hero-text {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 20px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--color-gold);
            letter-spacing: 0.06em;
        }
        .hero-tag::before {
            content: '';
            width: 32px;
            height: 1.5px;
            background: var(--color-gold);
            border-radius: 1px;
        }
        .hero-title {
            font-size: var(--font-h1);
            font-weight: 700;
            color: var(--color-charcoal);
            line-height: 1.2;
            letter-spacing: 0.03em;
            max-width: 460px;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--color-mid-gray);
            line-height: 1.7;
            max-width: 420px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: var(--color-gold);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            border: 2px solid var(--color-gold);
        }
        .btn-primary:hover {
            background: var(--color-gold-dark);
            border-color: var(--color-gold-dark);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(196, 154, 108, 0.3);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: transparent;
            color: var(--color-charcoal);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            border: 2px solid transparent;
        }
        .btn-outline:hover {
            color: var(--color-gold);
            gap: 12px;
        }
        .btn-outline .arrow-icon {
            transition: transform var(--transition-fast);
        }
        .btn-outline:hover .arrow-icon {
            transform: translateX(4px);
        }
        .hero-image-wrap {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            aspect-ratio: 4/3;
            background: var(--color-soft-gray);
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .hero-image-wrap:hover img {
            transform: scale(1.03);
        }
        .hero-image-wrap::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(28, 28, 30, 0.25) 100%);
            pointer-events: none;
            border-radius: 16px;
        }
        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-text {
                order: 1;
                gap: 14px;
                text-align: left;
            }
            .hero-title {
                max-width: 100%;
            }
            .hero-subtitle {
                max-width: 100%;
                font-size: 1.05rem;
            }
            .hero-image-wrap {
                order: 2;
                aspect-ratio: 16/10;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 12px;
            }
            .btn-primary,
            .btn-outline {
                justify-content: center;
                text-align: center;
            }
        }

        /* ========== FEATURES ========== */
        #features {
            background: var(--color-soft-gray);
        }
        .features-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .features-header .section-desc {
            margin: 0 auto;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--color-white);
            border: 1px solid var(--color-light-border);
            border-radius: var(--radius-card);
            padding: 40px 32px 32px;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 16px;
            text-align: left;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            border: 2px solid var(--color-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-gold);
            font-size: 1.3rem;
            flex-shrink: 0;
            transition: all var(--transition-smooth);
            margin: 0 auto 0 0;
        }
        .feature-card:hover .feature-icon {
            background: var(--color-gold);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: 0.02em;
            margin: 0;
        }
        .feature-card p {
            font-size: var(--font-body);
            color: var(--color-text-light);
            line-height: 1.8;
            margin: 0;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-card {
                padding: 28px 24px 24px;
            }
            .features-header {
                margin-bottom: 36px;
            }
        }

        /* ========== CASES ========== */
        #cases {
            background: var(--color-white);
        }
        .cases-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .cases-header .section-desc {
            margin: 0 auto;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            grid-auto-flow: dense;
        }
        .case-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            cursor: pointer;
            aspect-ratio: 3/4;
            background: var(--color-soft-gray);
            transition: all var(--transition-smooth);
        }
        .case-card.wide {
            grid-column: span 2;
            aspect-ratio: 3/2;
        }
        .case-card.tall {
            grid-row: span 2;
            aspect-ratio: 2/3;
        }
        .case-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all var(--transition-slow);
        }
        .case-card:hover img {
            transform: scale(1.06);
            filter: brightness(0.75);
        }
        .case-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 20px;
            background: linear-gradient(0deg, rgba(28, 28, 30, 0.85) 0%, transparent 100%);
            color: #fff;
            transition: all var(--transition-smooth);
        }
        .case-card:hover .case-overlay {
            padding-bottom: 32px;
            background: linear-gradient(0deg, rgba(28, 28, 30, 0.92) 0%, transparent 100%);
        }
        .case-overlay .case-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--color-gold-light);
            margin-bottom: 6px;
            text-transform: uppercase;
        }
        .case-overlay h3 {
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin: 0;
        }
        .case-plus {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-charcoal);
            opacity: 0;
            transform: translateY(-8px);
            transition: all var(--transition-smooth);
            font-weight: 700;
        }
        .case-card:hover .case-plus {
            opacity: 1;
            transform: translateY(0);
        }
        @media (max-width: 768px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .case-card.wide {
                grid-column: span 1;
                aspect-ratio: 3/4;
            }
            .case-card.tall {
                grid-row: span 1;
                aspect-ratio: 3/4;
            }
            .case-overlay {
                padding: 18px 16px;
            }
            .case-plus {
                opacity: 0.85;
                transform: translateY(0);
                top: 10px;
                right: 10px;
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .cases-header {
                margin-bottom: 36px;
            }
        }

        /* ========== COMPARE ========== */
        #compare {
            background: var(--color-soft-gray);
        }
        .compare-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .compare-header .section-desc {
            margin: 0 auto;
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
        }
        .compare-card {
            background: var(--color-white);
            border: 1px solid var(--color-light-border);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .compare-card.premium {
            border-color: var(--color-gold);
            box-shadow: 0 4px 24px rgba(196, 154, 108, 0.1);
            position: relative;
        }
        .compare-card.premium::before {
            content: '推荐方案';
            position: absolute;
            top: -13px;
            right: 24px;
            background: var(--color-gold);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }
        .compare-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: 0.02em;
        }
        .compare-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .compare-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.6;
        }
        .compare-features li .check-icon {
            color: var(--color-gold);
            flex-shrink: 0;
            font-weight: 700;
            font-size: 1rem;
        }
        .compare-features li .cross-text {
            color: #C0C0C0;
            text-decoration: line-through;
            text-decoration-color: #D5D5D5;
            flex-shrink: 0;
        }
        .compare-card .btn-compare {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            border: 2px solid var(--color-light-border);
            color: var(--color-charcoal);
            background: transparent;
            text-align: center;
        }
        .compare-card.premium .btn-compare {
            background: var(--color-gold);
            color: #fff;
            border-color: var(--color-gold);
        }
        .compare-card .btn-compare:hover {
            transform: scale(1.02);
        }
        .compare-card.premium .btn-compare:hover {
            background: var(--color-gold-dark);
            border-color: var(--color-gold-dark);
            box-shadow: 0 8px 24px rgba(196, 154, 108, 0.3);
        }
        @media (max-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .compare-card {
                padding: 28px 24px;
            }
            .compare-card.premium::before {
                right: 16px;
                top: -12px;
            }
            .compare-header {
                margin-bottom: 36px;
            }
        }

        /* ========== FAQ ========== */
        #faq {
            background: var(--color-white);
        }
        .faq-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .faq-header .section-desc {
            margin: 0 auto;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-light-border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 8px 20px 0;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: 0.02em;
            text-align: left;
            transition: color var(--transition-fast);
            position: relative;
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--color-gold);
        }
        .faq-question .faq-indicator {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--color-light-border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-smooth);
            font-size: 0.9rem;
            color: var(--color-text-light);
        }
        .faq-item.active .faq-question {
            color: var(--color-gold);
        }
        .faq-item.active .faq-indicator {
            border-color: var(--color-gold);
            color: var(--color-gold);
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 8px 0 0;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 8px 20px 0;
        }
        .faq-answer p {
            font-size: var(--font-body);
            color: var(--color-text-light);
            line-height: 1.9;
            margin: 0;
        }
        .faq-left-bar {
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--color-gold);
            border-radius: 2px;
            transition: height var(--transition-smooth);
        }
        .faq-item.active .faq-left-bar {
            height: 28px;
        }
        .faq-question {
            position: relative;
            padding-left: 4px;
        }
        @media (max-width: 768px) {
            .faq-question {
                font-size: 1rem;
                padding: 16px 4px 16px 0;
            }
            .faq-left-bar {
                left: -8px;
            }
            .faq-header {
                margin-bottom: 36px;
            }
        }

        /* ========== CONTACT ========== */
        #contact {
            background: var(--color-soft-gray);
            position: relative;
            overflow: hidden;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 6fr 6fr;
            gap: 52px;
            align-items: start;
        }
        .contact-info h2 {
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }
        .contact-info p {
            font-size: var(--font-body);
            color: var(--color-mid-gray);
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .contact-trust {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: var(--font-sm);
            color: var(--color-text-light);
        }
        .contact-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .contact-trust .trust-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-gold);
            flex-shrink: 0;
        }
        .contact-form-wrap {
            background: var(--color-white);
            border-radius: var(--radius-card);
            padding: 36px;
            border: 1px solid var(--color-light-border);
        }
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .contact-form input,
        .contact-form textarea {
            width: 100%;
            padding: 13px 16px;
            border: 1.5px solid var(--color-light-border);
            border-radius: var(--radius-btn);
            font-size: var(--font-body);
            background: transparent;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            color: var(--color-text);
            resize: vertical;
        }
        .contact-form input:focus,
        .contact-form textarea:focus {
            border-color: var(--color-gold);
            box-shadow: 0 0 0 3px rgba(196, 154, 108, 0.08);
            outline: none;
        }
        .contact-form textarea {
            min-height: 110px;
        }
        .contact-form .btn-submit {
            padding: 14px 28px;
            background: var(--color-gold);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
            align-self: flex-start;
        }
        .contact-form .btn-submit:hover {
            background: var(--color-gold-dark);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(196, 154, 108, 0.3);
        }
        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .contact-form-wrap {
                padding: 24px 20px;
            }
            .contact-form .btn-submit {
                align-self: stretch;
                text-align: center;
                justify-content: center;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-charcoal);
            color: #B0B0B5;
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 40px;
        }
        .footer-brand-desc {
            font-size: var(--font-sm);
            line-height: 1.9;
            color: #9A9AA0;
            margin-top: 8px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #D5D5DA;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: var(--font-sm);
            color: #9A9AA0;
        }
        .footer-col ul li a {
            color: #9A9AA0;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-gold-light);
        }
        .footer-social-icons {
            display: flex;
            gap: 14px;
            margin-top: 8px;
        }
        .footer-social-icons a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1.5px solid #505055;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9A9AA0;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .footer-social-icons a:hover {
            border-color: var(--color-gold);
            color: var(--color-gold-light);
            background: rgba(196, 154, 108, 0.08);
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: var(--font-sm);
            color: #777780;
            letter-spacing: 0.02em;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand-desc {
                grid-column: span 2;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand-desc {
                grid-column: span 1;
            }
        }

        /* ========== SCROLL FADE ========== */
        .fade-on-scroll {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== MOBILE OVERLAY ========== */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.35);
            z-index: 999;
        }
        .nav-overlay.show {
            display: block;
        }