/* roulang page: index */
/* ========== Design Tokens ========== */
        :root {
            --color-primary: #1C3B2D;
            --color-primary-deep: #153026;
            --color-primary-soft: #E7ECE4;
            --color-bg: #F6F3EC;
            --color-surface: #FFFFFF;
            --color-surface-soft: #FCFAF5;
            --color-accent: #E07A2F;
            --color-accent-hover: #C96A21;
            --color-text: #1E2A24;
            --color-text-secondary: #6B7A70;
            --color-border: rgba(28, 59, 45, 0.12);
            --color-white: #F6F3EC;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-pill: 999px;
            --shadow-main: 0 8px 24px rgba(28, 59, 45, 0.08);
            --shadow-hover: 0 12px 32px rgba(28, 59, 45, 0.14);
            --transition-base: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
            --container-max: 1200px;
            --section-pad: clamp(4rem, 10vw, 7rem);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: "Archivo", "IBM Plex Sans", "Helvetica Neue", sans-serif;
        }

        /* ========== Reset & Base ========== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: var(--color-accent);
        }

        ul, ol {
            list-style: none;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition-base);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(28, 59, 45, 0.15);
        }

        .btn-primary:hover {
            background: var(--color-primary-deep);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline:hover {
            background: rgba(28, 59, 45, 0.06);
            color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(28, 59, 45, 0.06);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(224, 122, 47, 0.2);
        }

        .btn-light-outline {
            background: transparent;
            border-color: rgba(246, 243, 236, 0.5);
            color: var(--color-white);
        }

        .btn-light-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(246, 243, 236, 0.8);
            color: #fff;
        }

        /* ========== Tags / Badges ========== */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .tag-outline {
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
        }

        /* ========== Header / Nav (Desktop) ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: var(--transition-base);
            background: transparent;
            padding: 16px 0;
        }

        .site-header.scrolled {
            background: rgba(246, 243, 236, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 4px 20px rgba(28, 59, 45, 0.06);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .site-header.scrolled .logo-text {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(246, 243, 236, 0.85);
            position: relative;
            padding: 6px 2px;
            transition: var(--transition-base);
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.3s ease;
        }

        .main-nav a:hover {
            color: #fff;
        }

        .main-nav a.active {
            color: #fff;
            font-weight: 600;
        }

        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .site-header.scrolled .main-nav a {
            color: var(--color-text-secondary);
        }

        .site-header.scrolled .main-nav a:hover {
            color: var(--color-primary);
        }

        .site-header.scrolled .main-nav a.active {
            color: var(--color-primary);
        }

        .header-cta {
            flex-shrink: 0;
        }

        /* ========== Mobile Bottom Tab ========== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            z-index: 1200;
            padding-bottom: env(safe-area-inset-bottom);
        }

        .mobile-tab-bar .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 480px;
            margin: 0 auto;
        }

        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: 8px;
            color: var(--color-text-secondary);
            font-size: 12px;
            line-height: 1.3;
            transition: var(--transition-base);
            position: relative;
        }

        .mobile-tab-bar .tab-item i {
            font-size: 20px;
            line-height: 1;
        }

        .mobile-tab-bar .tab-item.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .mobile-tab-bar .tab-item.active::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: var(--color-accent);
        }

        .mobile-tab-bar .tab-item:active {
            transform: scale(0.95);
        }

        /* ========== Hero Section ========== */
        .hero {
            position: relative;
            min-height: 80vh;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            overflow: hidden;
            padding-top: 80px;
            padding-bottom: 60px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(28, 59, 45, 0.95) 0%, rgba(28, 59, 45, 0.6) 60%, rgba(28, 59, 45, 0.3) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            max-width: 1200px;
        }

        .hero-content {
            max-width: 680px;
            padding: 40px 0;
        }

        .hero-pain-point {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: rgba(246, 243, 236, 0.75);
            margin-bottom: 24px;
            padding: 8px 16px;
            border-left: 3px solid var(--color-accent);
            background: rgba(255, 255, 255, 0.06);
            border-radius: 0 8px 8px 0;
        }

        .hero-pain-point::before {
            content: '“';
            font-size: 22px;
            color: var(--color-accent);
            font-weight: 700;
        }

        .hero-pain-point::after {
            content: '”';
            font-size: 22px;
            color: var(--color-accent);
            font-weight: 700;
        }

        .hero h1 {
            font-size: clamp(2.4rem, 5vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(246, 243, 236, 0.85);
            margin-bottom: 32px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-trust {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(246, 243, 236, 0.15);
        }

        .hero-trust .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(246, 243, 236, 0.7);
        }

        .hero-trust .trust-item i {
            color: var(--color-accent);
        }

        /* ========== Pain Points Section ========== */
        .pain-points {
            padding: var(--section-pad) 0;
            background: var(--color-bg);
        }

        .section-heading {
            margin-bottom: 48px;
        }

        .section-heading .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
            display: block;
        }

        .section-heading h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 640px;
        }

        .pain-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
        }

        .pain-item {
            padding: 32px 32px 32px 0;
            text-align: left;
        }

        .pain-item + .pain-item {
            padding-left: 32px;
            border-left: 1px solid var(--color-border);
        }

        .pain-number {
            font-size: 3rem;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1.5px var(--color-primary);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: 16px;
            display: block;
            font-family: var(--font-en);
        }

        .pain-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .pain-item p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ========== Solution Cards Section ========== */
        .solutions {
            padding: var(--section-pad) 0;
            background: var(--color-surface-soft);
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 32px;
        }

        .solution-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            grid-column: span 6;
        }

        .solution-card.large {
            grid-column: span 7;
        }

        .solution-card.offset {
            margin-top: 40px;
            grid-column: 6 / span 5;
        }

        .solution-card.offset-left {
            grid-column: 1 / span 5;
        }

        .solution-card.offset-right {
            grid-column: 8 / span 5;
            margin-top: 40px;
        }

        .solution-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .solution-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .solution-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .solution-card:hover .card-img img {
            transform: scale(1.03);
        }

        .solution-card .card-body {
            padding: 24px;
        }

        .solution-card .card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .solution-card .card-body p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== Stats Section ========== */
        .stats-section {
            background: var(--color-primary);
            padding: var(--section-pad) 0;
            color: var(--color-white);
            position: relative;
        }

        .stats-section .section-heading h2 {
            color: #fff;
        }

        .stats-section .section-heading p {
            color: rgba(246, 243, 236, 0.7);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 48px;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .stat-number {
            font-size: clamp(2.4rem, 4vw, 3.6rem);
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            font-family: var(--font-en);
            display: block;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 15px;
            color: var(--color-white);
            opacity: 0.9;
        }

        .stats-note {
            text-align: center;
            font-size: 13px;
            color: rgba(246, 243, 236, 0.5);
            margin-top: 32px;
        }

        /* ========== CMS / Latest News Section ========== */
        .latest-section {
            padding: var(--section-pad) 0;
            background: var(--color-bg);
        }

        .news-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 28px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            transition: var(--transition-base);
        }

        .news-item:hover {
            box-shadow: var(--shadow-main);
            transform: translateY(-2px);
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }

        .news-meta .news-date {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-left: auto;
        }

        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            display: block;
        }

        .news-title:hover {
            color: var(--color-accent);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--color-surface);
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-lg);
            color: var(--color-text-secondary);
            font-size: 15px;
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: var(--section-pad) 0;
            background: var(--color-surface-soft);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 64px;
            align-items: start;
        }

        .faq-heading {
            position: sticky;
            top: 120px;
        }

        .faq-list {
            border-top: 1px solid var(--color-border);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-primary);
            transition: var(--transition-base);
            font-style: normal;
        }

        .faq-item.active .faq-icon {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            padding: 0 0 20px;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: var(--section-pad) 0;
            background: var(--color-bg);
            text-align: center;
        }

        .cta-box {
            max-width: 720px;
            margin: 0 auto;
            padding: 48px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 24px;
            box-shadow: var(--shadow-main);
        }

        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--color-text-secondary);
            margin-bottom: 28px;
        }

        /* ========== Form Modal ========== */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            max-width: 560px;
            width: 100%;
            padding: 40px;
            position: relative;
            max-height: 90vh;
            overflow-y: auto;
            animation: modalFadeIn 0.3s ease;
        }

        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: var(--transition-base);
        }

        .modal-close:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .modal-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .modal-icon i {
            font-size: 28px;
            color: var(--color-primary);
        }

        .modal h3 {
            font-size: 22px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 8px;
        }

        .modal-subtitle {
            text-align: center;
            color: var(--color-text-secondary);
            font-size: 14px;
            margin-bottom: 32px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-text);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--color-text);
            background: var(--color-bg);
            transition: var(--transition-base);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(28, 59, 45, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        .form-submit {
            width: 100%;
            margin-top: 8px;
        }

        .form-privacy {
            font-size: 12px;
            color: var(--color-text-secondary);
            text-align: center;
            margin-top: 16px;
            line-height: 1.6;
        }

        .form-response {
            text-align: center;
            padding: 16px;
            border-radius: var(--radius-md);
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            display: none;
        }

        .form-response.show {
            display: block;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(246, 243, 236, 0.8);
            padding-top: 64px;
            margin-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(246, 243, 236, 0.6);
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(246, 243, 236, 0.6);
            font-size: 14px;
            padding: 4px 0;
            transition: var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-contact {
            font-size: 14px;
        }

        .footer-contact p {
            margin-bottom: 8px;
            color: rgba(246, 243, 236, 0.6);
        }

        .footer-contact p i {
            color: var(--color-accent);
            margin-right: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(246, 243, 236, 0.1);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(246, 243, 236, 0.4);
        }

        .footer-trust {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: rgba(246, 243, 236, 0.5);
        }

        .footer-trust i {
            color: var(--color-accent);
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
        }

        .breadcrumb a:hover {
            color: var(--color-accent);
        }

        .breadcrumb span {
            margin: 0 8px;
        }

        /* ========== Back to Top ========== */
        .back-top {
            position: fixed;
            bottom: 90px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-base);
            box-shadow: var(--shadow-main);
        }

        .back-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-top:hover {
            background: var(--color-accent);
            transform: translateY(-2px);
        }

        /* ========== Animations ========== */
        .reveal {
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* ========== Responsive ========== */
        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .main-nav {
                gap: 20px;
            }

            .solution-card.large {
                grid-column: span 7;
            }

            .solution-card.offset {
                grid-column: 6 / span 5;
                margin-top: 40px;
            }

            .solution-card.offset-left {
                grid-column: 1 / span 5;
            }

            .solution-card.offset-right {
                grid-column: 8 / span 5;
                margin-top: 40px;
            }

            .stats-grid {
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            .site-header {
                padding: 12px 0;
            }

            .site-header .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .site-header .main-nav,
            .site-header .header-cta {
                display: none;
            }

            .site-header .logo-text {
                font-size: 16px;
                color: var(--color-primary);
            }

            .site-header.scrolled {
                background: rgba(246, 243, 236, 0.95);
            }

            .mobile-tab-bar {
                display: block;
            }

            .hero {
                min-height: calc(100vh - 64px);
                padding-top: 70px;
                padding-bottom: 80px;
            }

            .hero-content {
                padding: 20px 0;
            }

            .hero h1 {
                font-size: clamp(2rem, 8vw, 2.8rem);
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-trust {
                gap: 16px;
                flex-direction: column;
                align-items: flex-start;
            }

            .pain-list {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .pain-item {
                padding: 0 0 24px;
                border-bottom: 1px solid var(--color-border);
            }

            .pain-item + .pain-item {
                padding-left: 0;
                border-left: none;
                border-top: none;
            }

            .solution-grid {
                display: block;
            }

            .solution-card,
            .solution-card.large,
            .solution-card.offset,
            .solution-card.offset-left,
            .solution-card.offset-right {
                margin-top: 24px;
                grid-column: auto;
            }

            .solution-card:first-child {
                margin-top: 0;
            }

            .solution-card .card-body {
                padding: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item {
                padding: 20px 12px;
            }

            .stat-number {
                font-size: 2rem;
            }

            .news-item {
                padding: 20px;
                gap: 16px;
            }

            .news-meta {
                flex-wrap: wrap;
            }

            .news-meta .news-date {
                margin-left: 0;
                width: 100%;
            }

            .news-title {
                font-size: 16px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .faq-heading {
                position: static;
            }

            .cta-box {
                padding: 32px 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }

            .modal {
                padding: 32px 20px;
            }

            .back-top {
                bottom: 80px;
            }

            .site-footer {
                margin-bottom: 64px;
            }

            body {
                padding-bottom: 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-pain-point {
                font-size: 13px;
                padding: 6px 12px;
            }

            .hero-sub {
                font-size: 14px;
            }

            .section-heading h2 {
                font-size: 1.5rem;
            }

            .stats-grid {
                gap: 12px;
            }

            .stat-item {
                padding: 16px 8px;
            }

            .stat-number {
                font-size: 1.75rem;
            }

            .news-item {
                flex-direction: column;
            }

            .news-content {
                width: 100%;
            }

            .news-meta .news-date {
                margin-left: 0;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
            }

            .logo-text {
                font-size: 15px !important;
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #1C3B2D;
  --color-primary-dark: #153026;
  --color-primary-soft: #E7ECE4;
  --color-bg: #F6F3EC;
  --color-surface: #FFFFFF;
  --color-surface-warm: #FCFAF5;
  --color-accent: #E07A2F;
  --color-accent-hover: #C5681F;
  --color-text: #1E2A24;
  --color-text-secondary: #6B7A70;
  --color-border: rgba(28, 59, 45, 0.12);
  --shadow-main: 0 8px 24px rgba(28, 59, 45, 0.08);
  --shadow-hover: 0 12px 32px rgba(28, 59, 45, 0.14);
  --radius-lg: 16px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-accent);
}

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

input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  line-height: 1.5;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(224, 122, 47, 0.15);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(28, 59, 45, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(246, 243, 236, 0.95);
  box-shadow: var(--shadow-main);
  border-bottom-color: var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-bg);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--transition);
}

.site-header.scrolled .logo-text {
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(246, 243, 236, 0.88);
  padding: 8px 2px;
  position: relative;
  transition: color var(--transition);
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-bg);
}

.site-header.scrolled .main-nav a {
  color: var(--color-text);
}

.site-header.scrolled .main-nav a:hover,
.site-header.scrolled .main-nav a.active {
  color: var(--color-accent);
}

.header-cta {
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(224, 122, 47, 0.25);
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
  box-shadow: 0 6px 18px rgba(224, 122, 47, 0.35);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: rgba(28, 59, 45, 0.06);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

/* ===== Hero Section ===== */
.category-hero {
  padding: 140px 0 80px;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  min-height: 40vh;
  display: flex;
  align-items: center;
}

.category-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  height: 420px;
  background: var(--color-primary-soft);
  border-radius: 50%;
  opacity: 0.6;
  transform: translate(30%, -20%);
}

.category-hero::after {
  content: "官方平台";
  position: absolute;
  right: 20px;
  bottom: 20px;
  font-size: 14px;
  letter-spacing: 6px;
  color: rgba(28, 59, 45, 0.12);
  writing-mode: vertical-rl;
  font-weight: 700;
  user-select: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  position: relative;
  z-index: 2;
}

.hero-left {
  flex: 0 0 60%;
}

.hero-right {
  flex: 0 0 40%;
  display: flex;
  justify-content: flex-end;
}

.breadcrumb {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  opacity: 0.4;
}

.category-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 460px;
}

.hero-visual {
  position: relative;
  width: 260px;
  height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(28, 59, 45, 0.35));
}

/* ===== Section common ===== */
.section {
  padding: clamp(4rem, 8vw, 6rem) 0;
}

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

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(224, 122, 47, 0.08);
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

/* ===== Overview ===== */
.overview-section {
  background: var(--color-surface-warm);
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.overview-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
  height: 400px;
}

.overview-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.overview-image::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(28, 59, 45, 0.25));
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.overview-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.overview-content p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.overview-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  transition: background var(--transition), transform var(--transition);
}

.tag:hover {
  background: #D9E0D4;
  transform: translateY(-1px);
}

/* ===== Card Grid ===== */
.card-grid-section {
  background: var(--color-bg);
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.info-card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.info-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.info-card:hover .info-card-image img {
  transform: scale(1.04);
}

.info-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(28, 59, 45, 0.18));
  pointer-events: none;
}

.info-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.info-card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.info-card-body p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 18px;
}

.info-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition);
}

.info-card-link:hover {
  gap: 10px;
  color: var(--color-accent-hover);
}

.info-card-link i {
  font-size: 12px;
}

/* ===== View All ===== */
.view-all-section {
  background: var(--color-bg);
  padding: 0 0 clamp(4rem, 8vw, 6rem);
  text-align: center;
}

.view-all-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-primary-soft);
  padding: clamp(4rem, 8vw, 6rem) 0;
}

.faq-section .section-header {
  text-align: center;
}

.faq-section .section-header p {
  margin: 0 auto;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item.active {
  box-shadow: var(--shadow-main);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  user-select: none;
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 300;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  margin-top: -1px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--color-primary);
  padding: clamp(4rem, 8vw, 5.5rem) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  left: 10%;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  color: #fff;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.cta-section p {
  font-size: 16px;
  color: rgba(246, 243, 236, 0.72);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(246, 243, 236, 0.8);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 243, 236, 0.65);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(246, 243, 236, 0.7);
  margin-bottom: 10px;
  line-height: 1.6;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-contact p {
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(246, 243, 236, 0.7);
}

.footer-contact i {
  color: var(--color-accent);
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(246, 243, 236, 0.5);
}

.footer-trust {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(246, 243, 236, 0.6);
}

.footer-trust i {
  color: var(--color-accent);
}

/* ===== Mobile Bottom Nav ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  z-index: 999;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.04);
}

.mobile-bottom-nav .tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: color var(--transition), transform 0.2s ease;
}

.mobile-bottom-nav .tab-item i {
  font-size: 20px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.mobile-bottom-nav .tab-item span {
  font-weight: 500;
}

.mobile-bottom-nav .tab-item.active {
  color: var(--color-primary);
  font-weight: 600;
}

.mobile-bottom-nav .tab-item.active i {
  color: var(--color-primary);
}

.mobile-bottom-nav .tab-item.active::before {
  content: "";
  position: absolute;
  top: 0;
  width: 20px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 0 0 4px 4px;
}

.mobile-bottom-nav .tab-item:active {
  transform: scale(0.93);
}

.mobile-bottom-nav .tab-item {
  position: relative;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  display: flex;
  opacity: 1;
}

.modal-overlay.closing {
  opacity: 0;
}

.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 560px;
  width: 100%;
  padding: 36px;
  position: relative;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.modal-overlay.open .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-text-secondary);
  background: var(--color-primary-soft);
  border-radius: 50%;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
}

.modal-close:hover {
  background: var(--color-accent);
  color: #fff;
}

.modal-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
  color: var(--color-accent);
}

.modal-box h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.modal-box .modal-sub {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group select {
  appearance: auto;
}

.form-privacy {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-top: 16px;
  padding: 12px 14px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent);
}

.form-submit {
  width: 100%;
  margin-top: 16px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.form-success .success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
  color: var(--color-primary);
}

.form-success p {
  font-size: 15px;
  color: var(--color-text);
}

/* ===== Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .main-nav {
    gap: 20px;
  }
  .hero-inner {
    gap: 40px;
  }
  .overview-grid {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .site-header {
    display: none;
  }
  .mobile-bottom-nav {
    display: flex;
  }
  body {
    padding-bottom: 80px;
  }
  .category-hero {
    padding: 80px 0 48px;
    min-height: auto;
  }
  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }
  .hero-left {
    flex: 1;
    width: 100%;
  }
  .hero-right {
    display: none;
  }
  .category-hero h1 {
    font-size: 2rem;
  }
  .overview-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .overview-image {
    height: 240px;
  }
  .card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .info-card-image {
    height: 180px;
  }
  .info-card-body {
    padding: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .cta-section h2 {
    font-size: 1.6rem;
  }
  .modal-box {
    padding: 24px;
  }
  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }
  .faq-answer-inner {
    padding: 0 18px 18px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .category-hero {
    padding: 64px 0 40px;
  }
  .breadcrumb {
    font-size: 12px;
  }
  .category-hero h1 {
    font-size: 1.7rem;
  }
  .hero-desc {
    font-size: 14px;
  }
  .section-header h2 {
    font-size: 1.4rem;
  }
  .section-header p {
    font-size: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .modal-box {
    padding: 20px;
  }
  .modal-box h3 {
    font-size: 18px;
  }
}

/* roulang page: article */
:root {
    --color-primary: #1C3B2D;
    --color-primary-dark: #153026;
    --color-primary-soft: #E7ECE4;
    --color-bg: #F6F3EC;
    --color-surface: #FFFFFF;
    --color-surface-warm: #FCFAF5;
    --color-accent: #E07A2F;
    --color-accent-dark: #C9641F;
    --color-text: #1E2A24;
    --color-text-secondary: #6B7A70;
    --color-border: rgba(28,59,45,0.12);
    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-full: 999px;
    --shadow-sm: 0 8px 24px rgba(28,59,45,0.08);
    --shadow-lg: 0 12px 32px rgba(28,59,45,0.14);
    --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    --font-num: "Archivo", "IBM Plex Sans", "Helvetica Neue", sans-serif;
    --container: 1200px;
    --section-pad: clamp(4rem, 10vw, 7rem);
    --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body.modal-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--color-accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s;
    outline: none;
    border: none;
    line-height: 1.4;
}
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.btn-primary { background: var(--color-primary); color: #FFFFFF; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-outline { background: transparent; border: 1.5px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: rgba(28,59,45,0.06); color: var(--color-primary); }
.btn-accent { background: var(--color-accent); color: #FFFFFF; }
.btn-accent:hover { background: var(--color-accent-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(224,122,47,0.3); }

/* Header */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 18px 0;
    background: transparent;
    transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
}
.site-header.scrolled {
    background: rgba(246,243,236,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 16px rgba(28,59,45,0.08);
    padding: 12px 0;
}
.page-inner .site-header {
    background: rgba(246,243,236,0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 16px rgba(28,59,45,0.06);
    border-bottom: 1px solid var(--color-border);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 42px; height: 42px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.logo-icon svg { width: 28px; height: 28px; }
.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.page-inner .logo-text,
.site-header.scrolled .logo-text {
    color: var(--color-primary);
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}
.main-nav a {
    position: relative;
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(246,243,236,0.92);
    padding: 6px 2px;
    transition: color 0.3s;
}
.main-nav a:hover { color: var(--color-accent); }
.page-inner .main-nav a { color: var(--color-text); }
.main-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
}
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--color-accent); }
.header-cta { flex-shrink: 0; }
.header-cta .btn { padding: 10px 20px; font-size: 0.9rem; }

/* Mobile Tab */
.mobile-tab {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--color-border);
    display: none;
    z-index: 150;
    padding: 6px 12px calc(8px + env(safe-area-inset-bottom));
    transition: transform 0.3s;
}
.mobile-tab a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 6px 4px;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color 0.3s, transform 0.2s;
    position: relative;
    border-radius: 10px;
}
.mobile-tab a i { font-size: 1.15rem; line-height: 1; }
.mobile-tab a:hover { color: var(--color-primary); }
.mobile-tab a.active { color: var(--color-primary); font-weight: 600; }
.mobile-tab a.active::after {
    content: "";
    position: absolute;
    top: 2px;
    width: 4px; height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
}
.mobile-tab a:active { transform: scale(0.92); }

/* Article Hero */
.article-hero {
    background: var(--color-surface-warm);
    padding: calc(120px + clamp(2rem, 6vw, 4rem)) 0 clamp(2rem, 4vw, 3rem);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}
.article-hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent) 0%, transparent 60%);
}
.article-hero::after {
    content: "官方平台";
    position: absolute;
    right: -10px;
    bottom: 10px;
    font-size: clamp(4rem, 10vw, 7rem);
    font-weight: 800;
    color: rgba(28,59,45,0.04);
    line-height: 1;
    pointer-events: none;
    writing-mode: vertical-rl;
    letter-spacing: 0.1em;
}
.article-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 900px;
}
.article-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 18px;
    transition: color 0.3s, gap 0.3s;
}
.article-back-link:hover { color: var(--color-accent); gap: 10px; }
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--color-text-secondary); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { color: rgba(28,59,45,0.3); }
.breadcrumb .current {
    color: var(--color-primary);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 340px;
}
.article-header h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--color-text);
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}
.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-item i { color: var(--color-accent); font-size: 0.85rem; }

/* Article Main */
.article-main {
    background: var(--color-bg);
    padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}
.article-layout {
    max-width: 900px;
    margin: 0 auto;
}
.article-body {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    padding: clamp(1.5rem, 4vw, 3rem);
    transition: box-shadow 0.3s;
}
.article-body:hover { box-shadow: var(--shadow-lg); }
.article-cover {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 2rem;
    position: relative;
}
.article-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 70%, rgba(28,59,45,0.15));
    pointer-events: none;
}
.article-cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.article-content {
    font-size: 1.0625rem;
    line-height: 1.9;
    color: var(--color-text);
}
.article-content > p:first-child {
    font-size: 1.125rem;
    border-left: 3px solid var(--color-accent);
    padding-left: 18px;
    color: var(--color-text);
    font-weight: 500;
    margin-bottom: 1.6em;
}
.article-content p { margin-bottom: 1.5em; }
.article-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2em 0 0.8em;
    color: var(--color-text);
    border-left: 4px solid var(--color-accent);
    padding-left: 14px;
    line-height: 1.35;
}
.article-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1.8em 0 0.6em;
    color: var(--color-text);
}
.article-content img {
    border-radius: var(--radius-md);
    margin: 1.5em auto;
    width: 100%;
    height: auto;
}
.article-content ul, .article-content ol {
    margin: 0 0 1.5em 1.5em;
    padding: 0;
}
.article-content li { margin-bottom: 0.5em; }
.article-content a { text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(28,59,45,0.3); }
.article-content a:hover { text-decoration-color: var(--color-accent); }
.article-content blockquote {
    border-left: 3px solid var(--color-accent);
    background: var(--color-primary-soft);
    padding: 16px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 1.5em 0;
    color: var(--color-text-secondary);
    font-style: italic;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.95em;
}
.article-content th, .article-content td {
    border: 1px solid var(--color-border);
    padding: 10px 12px;
    text-align: left;
}
.article-content th {
    background: var(--color-primary-soft);
    color: var(--color-text);
    font-weight: 600;
}
.article-footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}
.article-footer-nav a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    transition: color 0.3s, gap 0.3s;
}
.article-footer-nav a:hover { color: var(--color-accent); gap: 12px; }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}
.empty-state h1 {
    font-size: 2rem;
    color: var(--color-text);
    margin-bottom: 12px;
}
.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

/* Related */
.related-section {
    padding: clamp(4rem, 10vw, 6rem) 0;
    background: var(--color-bg);
}
.section-head {
    margin-bottom: 3rem;
    max-width: 640px;
}
.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: 10px;
    text-transform: uppercase;
}
.section-head h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 12px;
}
.section-head p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.3s var(--transition), box-shadow 0.3s var(--transition);
    display: flex;
    flex-direction: column;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.related-card .card-img { overflow: hidden; margin: 0; }
.related-card .card-img img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 0.5s;
}
.related-card:hover .card-img img { transform: scale(1.04); }
.related-card .card-body {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.related-card .card-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
}
.related-card .card-body h3 a { color: var(--color-text); }
.related-card .card-body h3 a:hover { color: var(--color-accent); }
.related-card .card-body p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card .card-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    padding-top: 12px;
}
.related-card .card-meta i { color: var(--color-accent); font-size: 0.75rem; }

/* CTA */
.cta-section {
    background: var(--color-primary);
    padding: clamp(3.5rem, 8vw, 5.5rem) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    width: 320px; height: 320px;
    border: 1px solid rgba(246,243,236,0.08);
    border-radius: 50%;
    top: -120px; right: -80px;
    pointer-events: none;
}
.cta-section::after {
    content: "";
    position: absolute;
    width: 200px; height: 200px;
    border: 1px solid rgba(224,122,47,0.15);
    border-radius: 50%;
    bottom: -80px; left: -60px;
    pointer-events: none;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 {
    color: #FFFFFF;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}
.cta-section p {
    color: rgba(246,243,236,0.75);
    font-size: 1.05rem;
    margin-bottom: 32px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.cta-section .btn-accent {
    padding: 14px 32px;
    font-size: 1rem;
}

/* Footer */
.site-footer {
    background: var(--color-primary);
    color: rgba(246,243,236,0.8);
    padding: clamp(3rem, 6vw, 5rem) 0 2rem;
    position: relative;
}
.site-footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent) 0%, transparent 40%, transparent 100%);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 3rem;
}
.footer-brand .logo-text {
    color: #FFFFFF !important;
    font-size: 1.2rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(246,243,236,0.65);
    max-width: 340px;
    margin-top: 12px;
}
.footer-col h4 {
    color: #FFFFFF;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}
.footer-col a {
    display: block;
    color: rgba(246,243,236,0.7);
    font-size: 0.88rem;
    padding: 5px 0;
    transition: color 0.3s, padding-left 0.3s;
}
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact p {
    font-size: 0.88rem;
    color: rgba(246,243,236,0.7);
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-contact i { color: var(--color-accent); width: 16px; text-align: center; }
.footer-bottom {
    border-top: 1px solid rgba(246,243,236,0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: rgba(246,243,236,0.45);
}
.footer-trust {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-trust i { color: var(--color-accent); }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-box {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 36px 32px 28px;
    position: relative;
    transform: translateY(20px) scale(0.98);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 24px 64px rgba(0,0,0,0.2);
}
.modal-overlay.active .modal-box { transform: translateY(0) scale(1); }
.modal-close {
    position: absolute;
    top: 16px; right: 16px;
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-soft);
    color: var(--color-text);
    font-size: 1.1rem;
    transition: background 0.3s, transform 0.3s, color 0.3s;
}
.modal-close:hover { background: var(--color-accent); color: #FFFFFF; transform: rotate(90deg); }
.modal-head { text-align: center; margin-bottom: 24px; }
.modal-icon {
    width: 56px; height: 56px;
    background: var(--color-primary-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    color: var(--color-primary);
}
.modal-head h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
}
.modal-head p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-warm);
    font-size: 0.92rem;
    color: var(--color-text);
    transition: border-color 0.3s, box-shadow 0.3s;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(224,122,47,0.15);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-submit { width: 100%; margin-top: 8px; }
.modal-privacy {
    margin-top: 16px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-align: center;
    line-height: 1.6;
}

/* Reveal */
.reveal {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1024px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .main-nav { gap: 20px; }
}
@media (max-width: 767px) {
    .site-header { display: none; }
    .mobile-tab { display: flex; }
    body { padding-bottom: 70px; }
    .article-hero { padding-top: 80px; padding-bottom: 2rem; }
    .article-body { padding: 20px; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .cta-section p { font-size: 0.95rem; }
    .article-footer-nav { flex-direction: column; align-items: flex-start; gap: 4px; }
    .breadcrumb .current { max-width: 170px; }
    .modal-box { padding: 28px 20px 22px; }
}
@media (max-width: 520px) {
    .container { padding-left: 20px; padding-right: 20px; }
    .article-content { font-size: 1rem; line-height: 1.85; }
    .article-content > p:first-child { font-size: 1.0625rem; }
    .article-footer-nav a { font-size: 0.85rem; }
    .related-card .card-body { padding: 18px; }
    .btn { padding: 10px 20px; font-size: 0.9rem; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}