/* roulang page: index */
:root {
            --color-primary: #d4008c;
            --color-primary-rgb: 212, 0, 140;
            --color-secondary: #6b00b3;
            --color-secondary-rgb: 107, 0, 179;
            --color-accent: #00e5ff;
            --color-accent-rgb: 0, 229, 255;
            --color-bg-deep: #0a0a0f;
            --color-bg-card: #111118;
            --color-bg-card-lighter: #16161f;
            --color-bg-footer: #08080d;
            --color-text-white: #ffffff;
            --color-text-body: #c8c8d0;
            --color-text-muted: #888896;
            --color-text-data: #00e5ff;
            --color-success: #00e676;
            --color-negative: #555560;
            --color-warning: #ff6d3a;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-medium: rgba(255, 255, 255, 0.1);
            --border-glow: rgba(212, 0, 140, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-glow-pink: 0 0 24px rgba(212, 0, 140, 0.2);
            --shadow-glow-pink-strong: 0 0 28px rgba(212, 0, 140, 0.5);
            --shadow-glow-cyan: 0 0 18px rgba(0, 229, 255, 0.3);
            --transition-fast: 200ms ease;
            --transition-smooth: 250ms ease;
            --transition-faq: 300ms ease;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-data: 'DIN Alternate', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height-desktop: 64px;
            --nav-height-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height-desktop);
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-body);
            background-color: var(--color-bg-deep);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            html {
                scroll-padding-top: var(--nav-height-mobile);
            }
        }

        /* ── 导航栏 ── */
        #navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height-desktop);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            background: transparent;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth), height var(--transition-smooth);
            border-bottom: 1px solid transparent;
        }
        #navbar.scrolled {
            background: rgba(10, 10, 15, 0.95);
            border-bottom: 1px solid rgba(212, 0, 140, 0.35);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        #navbar .nav-logo {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 1px;
            color: #ffffff;
            text-shadow: 0 0 18px rgba(212, 0, 140, 0.5);
            white-space: nowrap;
            z-index: 1002;
            position: relative;
        }
        #navbar .nav-logo .logo-accent {
            color: var(--color-primary);
            text-shadow: 0 0 22px rgba(212, 0, 140, 0.7);
        }
        #navbar .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            z-index: 1002;
            position: relative;
        }
        #navbar .nav-links-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-body);
            position: relative;
            padding: 6px 2px;
            transition: color var(--transition-fast);
            letter-spacing: 0.3px;
        }
        #navbar .nav-links-desktop a:hover {
            color: var(--color-primary);
            text-shadow: 0 0 14px rgba(212, 0, 140, 0.5);
        }
        #navbar .nav-links-desktop a.nav-active {
            color: var(--color-primary);
        }
        #navbar .nav-links-desktop a.nav-active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(212, 0, 140, 0.6);
        }

        /* 汉堡按钮 */
        #hamburger-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            position: relative;
            padding: 8px;
            background: none;
            border: none;
        }
        #hamburger-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #ffffff;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        #hamburger-btn:hover span:nth-child(2) {
            background: var(--color-primary);
            box-shadow: 0 0 8px rgba(212, 0, 140, 0.6);
        }
        #hamburger-btn.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        #hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        #hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* 移动端抽屉面板 */
        #mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(10, 10, 15, 0.98);
            z-index: 1001;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        #mobile-drawer.open {
            opacity: 1;
            pointer-events: auto;
        }
        #mobile-drawer a {
            font-size: 20px;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 1px;
            position: relative;
            padding: 10px 20px;
            transition: color var(--transition-fast);
        }
        #mobile-drawer a:hover {
            color: var(--color-primary);
            text-shadow: 0 0 16px rgba(212, 0, 140, 0.6);
        }
        #mobile-drawer a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--color-primary);
            border-radius: 2px;
            transition: height var(--transition-fast);
        }
        #mobile-drawer a:hover::before {
            height: 60%;
        }

        @media (max-width: 768px) {
            #navbar {
                height: var(--nav-height-mobile);
                padding: 0 16px;
            }
            #navbar .nav-links-desktop {
                display: none;
            }
            #hamburger-btn {
                display: flex;
            }
            #navbar .nav-logo {
                font-size: 18px;
            }
        }
        @media (min-width: 769px) {
            #mobile-drawer {
                display: none;
            }
            #hamburger-btn {
                display: none;
            }
        }

        /* ── Hero ── */
        #hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 120px 20px 60px;
        }
        #hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom,
                    rgba(10, 10, 15, 0.55) 0%,
                    rgba(180, 0, 100, 0.22) 40%,
                    rgba(10, 10, 15, 0.85) 85%,
                    #0a0a0f 100%);
            z-index: 1;
            pointer-events: none;
        }
        #hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(circle at 20% 30%, rgba(0, 229, 255, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 75% 60%, rgba(212, 0, 140, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(107, 0, 179, 0.07) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }
        #hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        #hero h1 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(32px, 5vw, 54px);
            letter-spacing: -0.5px;
            color: #ffffff;
            text-shadow: 0 0 30px rgba(212, 0, 140, 0.45), 0 0 60px rgba(212, 0, 140, 0.2);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        #hero .hero-subtitle {
            font-size: clamp(15px, 2vw, 18px);
            color: var(--color-text-body);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
            letter-spacing: 0.2px;
        }
        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, #d4008c 0%, #6b00b3 100%);
            color: #ffffff;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 2;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow-pink-strong);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.4px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-glow);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(212, 0, 140, 0.1);
            border-color: var(--color-primary);
            box-shadow: 0 0 16px rgba(212, 0, 140, 0.25);
        }

        @media (max-width: 640px) {
            #hero {
                min-height: 60vh;
                padding: 100px 16px 50px;
            }
            .btn-primary {
                padding: 12px 28px;
                font-size: 14px;
            }
        }

        /* ── 指标看板 ── */
        #hero .metrics-bar {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            max-width: 1000px;
            width: 100%;
            margin-top: 36px;
            background: rgba(17, 17, 24, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        #hero .metric-item {
            padding: 24px 16px;
            text-align: center;
            position: relative;
        }
        #hero .metric-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.08);
        }
        #hero .metric-number {
            font-family: var(--font-data);
            font-weight: 700;
            font-size: clamp(28px, 4vw, 46px);
            color: var(--color-accent);
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
            line-height: 1.1;
            display: block;
        }
        #hero .metric-label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }
        @media (max-width: 640px) {
            #hero .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 0;
                margin-top: 28px;
            }
            #hero .metric-item:nth-child(2)::after {
                display: none;
            }
            #hero .metric-item {
                padding: 18px 12px;
            }
            #hero .metric-number {
                font-size: 26px;
            }
        }

        /* ── 板块通用 ── */
        .section {
            padding: 80px 0;
            position: relative;
        }
        @media (max-width: 640px) {
            .section {
                padding: 56px 0;
            }
        }
        .section-divider {
            display: block;
            width: 70px;
            height: 2px;
            margin: 0 auto 40px;
            background: linear-gradient(90deg, transparent, rgba(212, 0, 140, 0.6), transparent);
            border-radius: 2px;
        }
        .section-title {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: clamp(24px, 3.5vw, 34px);
            color: #ffffff;
            text-align: center;
            text-shadow: 0 0 20px rgba(212, 0, 140, 0.35);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-text-muted);
            font-size: 15px;
            max-width: 550px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }

        /* ── 服务矩阵 ── */
        #services .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        @media (min-width: 1024px) {
            #services .services-grid {
                grid-template-columns: 5fr 4fr;
            }
        }
        #services .service-card-large {
            background: var(--color-bg-card-lighter);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        #services .service-card-large::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: var(--radius-lg);
            padding: 1px;
            background: linear-gradient(135deg, rgba(212, 0, 140, 0.5), rgba(107, 0, 179, 0.3), rgba(0, 229, 255, 0.15));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            opacity: 0.7;
            transition: opacity var(--transition-smooth);
        }
        #services .service-card-large:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-pink);
        }
        #services .service-card-large:hover::after {
            opacity: 1;
        }
        #services .service-card-large .card-image-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        #services .service-card-large .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        #services .service-card-large:hover .card-image-wrap img {
            transform: scale(1.04);
        }
        #services .service-card-large .card-body {
            padding: 26px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        #services .service-card-large .card-body h3 {
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 22px;
            color: #ffffff;
            margin-bottom: 8px;
        }
        #services .service-card-large .card-body p {
            font-size: 15px;
            color: var(--color-text-body);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        #services .service-cards-small {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        #services .service-card-small {
            background: var(--color-bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        #services .service-card-small:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 18px rgba(212, 0, 140, 0.12);
            transform: translateY(-2px);
        }
        #services .service-card-small .small-img {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        #services .service-card-small .small-icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            background: rgba(212, 0, 140, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 26px;
            color: var(--color-primary);
        }
        #services .service-card-small .small-content h3 {
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 17px;
            color: #ffffff;
            margin-bottom: 4px;
        }
        #services .service-card-small .small-content p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        @media (max-width: 1023px) {
            #services .services-grid {
                grid-template-columns: 1fr;
            }
            #services .service-cards-small {
                flex-direction: row;
                flex-wrap: wrap;
            }
            #services .service-card-small {
                flex: 1 1 200px;
                min-width: 180px;
            }
        }
        @media (max-width: 640px) {
            #services .service-cards-small {
                flex-direction: column;
            }
            #services .service-card-large .card-image-wrap {
                height: 150px;
            }
            #services .service-card-large .card-body {
                padding: 18px 16px;
            }
            #services .service-card-small {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px;
            }
        }

        /* ── 结果对比 ── */
        #results .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            max-width: 900px;
            margin: 0 auto;
        }
        #results .compare-col {
            background: var(--color-bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
        }
        #results .compare-col.col-negative {
            border-color: rgba(85, 85, 96, 0.3);
            background: rgba(85, 85, 96, 0.04);
        }
        #results .compare-col.col-positive {
            border-color: rgba(212, 0, 140, 0.3);
            background: rgba(212, 0, 140, 0.03);
            position: relative;
        }
        #results .compare-col.col-positive::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: var(--radius-lg);
            padding: 1px;
            background: linear-gradient(135deg, rgba(212, 0, 140, 0.45), rgba(0, 229, 255, 0.3));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        #results .compare-col h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 18px;
            text-align: center;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        #results .col-negative h3 {
            color: var(--color-negative);
        }
        #results .col-positive h3 {
            color: var(--color-primary);
            text-shadow: 0 0 14px rgba(212, 0, 140, 0.4);
        }
        #results .compare-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            gap: 10px;
        }
        #results .compare-row:last-child {
            border-bottom: none;
        }
        #results .compare-row .metric-name {
            font-size: 14px;
            color: var(--color-text-body);
            flex-shrink: 0;
        }
        #results .compare-row .progress-bar-wrap {
            flex: 1;
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 3px;
            overflow: hidden;
            min-width: 60px;
        }
        #results .compare-row .progress-fill {
            height: 100%;
            border-radius: 3px;
            transition: width 1s ease;
        }
        #results .col-negative .progress-fill {
            background: var(--color-negative);
        }
        #results .col-positive .progress-fill {
            background: linear-gradient(90deg, #d4008c, #00e5ff);
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.35);
        }
        #results .compare-row .val-text {
            font-size: 13px;
            font-weight: 600;
            flex-shrink: 0;
            min-width: 50px;
            text-align: right;
        }
        #results .col-negative .val-text {
            color: var(--color-text-muted);
        }
        #results .col-positive .val-text {
            color: var(--color-accent);
        }
        #results .conclusion {
            text-align: center;
            font-size: clamp(16px, 2.5vw, 21px);
            font-weight: 600;
            color: var(--color-primary);
            margin-top: 32px;
            text-shadow: 0 0 16px rgba(212, 0, 140, 0.3);
            letter-spacing: 0.3px;
        }
        @media (max-width: 640px) {
            #results .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            #results .compare-col {
                padding: 20px 16px;
            }
        }

        /* ── FAQ ── */
        #faq .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        #faq .faq-item {
            background: var(--color-bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        #faq .faq-item:hover {
            border-color: rgba(212, 0, 140, 0.3);
        }
        #faq .faq-item.open {
            border-color: var(--border-glow);
            box-shadow: 0 0 12px rgba(212, 0, 140, 0.1);
        }
        #faq .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: #ffffff;
            text-align: left;
            transition: color var(--transition-fast);
            gap: 12px;
            font-family: var(--font-body);
        }
        #faq .faq-question:hover {
            color: var(--color-primary);
        }
        #faq .faq-question .faq-icon-left {
            color: var(--color-accent);
            font-size: 15px;
            flex-shrink: 0;
            text-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
        }
        #faq .faq-question .faq-toggle-icon {
            font-size: 13px;
            color: var(--color-text-muted);
            transition: transform var(--transition-faq);
            flex-shrink: 0;
        }
        #faq .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }
        #faq .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-faq), padding var(--transition-faq);
        }
        #faq .faq-item.open .faq-answer {
            max-height: 300px;
        }
        #faq .faq-answer-inner {
            padding: 0 20px 18px 20px;
            padding-left: 48px;
            font-size: 14px;
            color: var(--color-text-body);
            line-height: 1.7;
            background: #0d0d15;
            margin: 0;
        }
        #faq .faq-item.open .faq-answer-inner {
            padding-top: 4px;
            padding-bottom: 18px;
        }
        @media (max-width: 640px) {
            #faq .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            #faq .faq-answer-inner {
                padding-left: 36px;
                padding-right: 14px;
                font-size: 13px;
            }
        }

        /* ── 转化表单 ── */
        #contact .contact-form-wrap {
            max-width: 700px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 40px;
        }
        @media (max-width: 640px) {
            #contact .contact-form-wrap {
                padding: 24px 16px;
            }
        }
        #contact .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        @media (max-width: 640px) {
            #contact .form-row {
                grid-template-columns: 1fr;
            }
        }
        #contact input,
        #contact textarea {
            width: 100%;
            background: #0a0a0f;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            font-size: 15px;
            color: #ffffff;
            transition: all var(--transition-fast);
            font-family: var(--font-body);
        }
        #contact input::placeholder,
        #contact textarea::placeholder {
            color: var(--color-text-muted);
        }
        #contact input:focus,
        #contact textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 14px rgba(212, 0, 140, 0.3);
            outline: none;
        }
        #contact textarea {
            min-height: 100px;
            resize: vertical;
        }
        #contact .form-full {
            margin-bottom: 16px;
        }
        #contact .form-submit-wrap {
            text-align: center;
            margin-top: 8px;
        }
        #contact .trust-badge {
            text-align: center;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 16px;
            letter-spacing: 0.2px;
        }

        /* ── 页脚 ── */
        #footer {
            background: var(--color-bg-footer);
            border-top: 1px solid rgba(212, 0, 140, 0.25);
            padding: 44px 20px;
        }
        #footer .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        @media (max-width: 768px) {
            #footer .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
        }
        #footer .footer-logo {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        #footer .footer-logo .logo-accent {
            color: var(--color-primary);
            text-shadow: 0 0 16px rgba(212, 0, 140, 0.5);
        }
        #footer .footer-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 280px;
        }
        @media (max-width: 768px) {
            #footer .footer-desc {
                max-width: 100%;
                margin: 0 auto;
            }
        }
        #footer .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        #footer .footer-links a {
            font-size: 14px;
            color: var(--color-text-body);
            transition: color var(--transition-fast);
        }
        #footer .footer-links a:hover {
            color: var(--color-primary);
            text-shadow: 0 0 10px rgba(212, 0, 140, 0.4);
        }
        #footer .footer-copyright {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        #footer .footer-label {
            font-size: 12px;
            color: var(--color-text-muted);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            #footer .footer-links {
                align-items: center;
            }
        }

        /* ── 粒子装饰 ── */
        .particle-dots {
            position: absolute;
            pointer-events: none;
            z-index: 0;
            opacity: 0.35;
        }
        .particle-dots::before,
        .particle-dots::after {
            content: '';
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
        }
        .particle-dots::before {
            top: 20px;
            left: 30px;
            animation: floatDot 6s ease-in-out infinite;
        }
        .particle-dots::after {
            top: 60px;
            left: 120px;
            animation: floatDot 8s ease-in-out infinite 1s;
            width: 3px;
            height: 3px;
            background: var(--color-primary);
            box-shadow: 0 0 8px rgba(212, 0, 140, 0.6);
        }
        @keyframes floatDot {
            0%,
            100% {
                transform: translateY(0) translateX(0);
                opacity: 0.5;
            }
            25% {
                transform: translateY(-18px) translateX(8px);
                opacity: 0.9;
            }
            50% {
                transform: translateY(-6px) translateX(14px);
                opacity: 0.4;
            }
            75% {
                transform: translateY(-22px) translateX(2px);
                opacity: 0.8;
            }
        }

        /* ── 数字计数动画相关 ── */
        .count-up {
            transition: all 0.3s ease;
        }

        /* ── 滚动渐现 ── */
        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal-on-scroll.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* 辅助 */
        .text-glow-pink {
            text-shadow: 0 0 18px rgba(212, 0, 140, 0.45);
        }
        .text-glow-cyan {
            text-shadow: 0 0 16px rgba(0, 229, 255, 0.5);
        }