/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0e6b58;
            --primary-dark: #09503f;
            --primary-light: #1a8f74;
            --primary-soft: #e7f3ef;
            --accent: #e8933a;
            --accent-dark: #c97927;
            --accent-soft: #fdf0df;
            --dark-bg: #081f19;
            --dark-bg-light: #102e26;
            --light-bg: #f4f8f6;
            --light-bg-2: #edf3f0;
            --body-text: #20302b;
            --muted-text: #647d76;
            --white: #ffffff;
            --border: #dce8e4;
            --border-dark: rgba(255, 255, 255, .14);
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(14, 107, 88, .06);
            --shadow-md: 0 8px 28px rgba(14, 107, 88, .10);
            --shadow-lg: 0 18px 48px rgba(14, 107, 88, .16);
            --transition: .28s cubic-bezier(.25, .8, .25, 1);
            --section-pad: 90px;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body-text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: 100%;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        :focus-visible {
            outline: 3px solid rgba(232, 147, 58, .5);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ========== 工具类 ========== */
        .grid-container {
            max-width: 1200px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--light-bg);
        }
        .section-dark {
            background: var(--dark-bg);
        }
        .text-center {
            text-align: center;
        }
        .mt-1 { margin-top: 12px; }
        .mt-2 { margin-top: 24px; }
        .mb-1 { margin-bottom: 12px; }
        .mb-2 { margin-bottom: 24px; }
        .hide-sm {
            display: none;
        }

        /* ========== 区块标题 ========== */
        .sec-head {
            max-width: 680px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .sec-eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 16px;
        }
        .sec-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--body-text);
            margin-bottom: 14px;
        }
        .sec-sub {
            font-size: 16px;
            color: var(--muted-text);
            line-height: 1.8;
        }
        .section-dark .sec-title {
            color: var(--white);
        }
        .section-dark .sec-sub {
            color: rgba(255, 255, 255, .72);
        }
        .section-dark .sec-eyebrow {
            background: rgba(255, 255, 255, .1);
            color: var(--accent-light, #f5b66b);
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 6px 30px rgba(14, 107, 88, .08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--body-text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(14, 107, 88, .25);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 9px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body-text);
            border-radius: 40px;
            position: relative;
            transition: all var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-soft);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: 10px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            border-radius: 40px;
            box-shadow: 0 4px 14px rgba(14, 107, 88, .25);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(14, 107, 88, .32);
        }
        .nav-cta i {
            font-size: 13px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 10px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--body-text);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 150px 0 100px;
            background: linear-gradient(135deg, rgba(8, 31, 25, .82) 0%, rgba(14, 107, 88, .68) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--white), transparent);
            z-index: 2;
        }
        .hero-inner {
            position: relative;
            z-index: 3;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 26px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: clamp(42px, 5.5vw, 68px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: #fff;
        }
        .hero h1 .accent {
            color: var(--accent);
        }
        .hero-desc {
            max-width: 640px;
            font-size: 18px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 42px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 24px rgba(232, 147, 58, .35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(232, 147, 58, .4);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .5);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .1);
            transform: translateY(-3px);
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-trust i {
            color: var(--accent);
            font-size: 15px;
        }

        /* ========== 数据横条 ========== */
        .stat-strip {
            position: relative;
            z-index: 4;
            margin-top: -42px;
            padding-bottom: 20px;
        }
        .stat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 34px 24px;
            text-align: center;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(220, 232, 228, .6);
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 52px rgba(14, 107, 88, .18);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -1px;
        }
        .stat-label {
            margin-top: 6px;
            font-size: 15px;
            color: var(--muted-text);
        }

        /* ========== 分类卡片 ========== */
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .category-media {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .category-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .category-card:hover .category-media img {
            transform: scale(1.06);
        }
        .category-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(8, 31, 25, .35), transparent 55%);
        }
        .category-body {
            padding: 28px 25px 30px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .category-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .category-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--body-text);
        }
        .category-body p {
            font-size: 15px;
            color: var(--muted-text);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
        }
        .category-link i {
            transition: transform var(--transition);
        }
        .category-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 特性 / 优势 ========== */
        .feature-grid {
            max-width: 1080px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            height: 100%;
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
            border-color: rgba(14, 107, 88, .2);
        }
        .feature-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            background: var(--accent-soft);
            color: var(--accent-dark);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--body-text);
        }
        .feature-card p {
            font-size: 15px;
            color: var(--muted-text);
            line-height: 1.75;
        }

        /* ========== 最新资讯 ========== */
        .latest-grid {
            margin-top: 8px;
        }
        .latest-card {
            display: flex;
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: all var(--transition);
        }
        .latest-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
            border-color: rgba(14, 107, 88, .25);
        }
        .latest-card-media {
            flex: 0 0 180px;
            min-height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .latest-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, transparent, rgba(8, 31, 25, .08));
        }
        .latest-card-body {
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .latest-card-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 30px;
            align-self: flex-start;
            margin-bottom: 10px;
        }
        .latest-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--body-text);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .latest-card:hover .latest-card-body h3 {
            color: var(--primary);
        }
        .latest-card-body p {
            font-size: 14px;
            color: var(--muted-text);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .latest-card-date {
            font-size: 13px;
            color: #8ba29b;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .empty-tip {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 30px;
            text-align: center;
            color: var(--muted-text);
            font-size: 16px;
        }

        /* ========== 使用流程 ========== */
        .steps-wrap {
            position: relative;
        }
        .steps-wrap::before {
            content: "";
            position: absolute;
            top: 44px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(to right, var(--primary), var(--accent));
            border-radius: 2px;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 2;
            padding: 0 12px;
        }
        .step-num {
            width: 88px;
            height: 88px;
            margin: 0 auto 22px;
            border-radius: 50%;
            background: var(--white);
            border: 4px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            box-shadow: 0 0 0 6px rgba(14, 107, 88, .1);
            position: relative;
        }
        .step-num::after {
            content: "";
            position: absolute;
            inset: -12px;
            border-radius: 50%;
            border: 1px dashed rgba(14, 107, 88, .3);
            animation: spin 20s linear infinite;
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--body-text);
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 15px;
            color: var(--muted-text);
            line-height: 1.7;
            max-width: 240px;
            margin: 0 auto;
        }

        /* ========== 对比区块 ========== */
        .compare-wrap {
            background: linear-gradient(135deg, rgba(8, 31, 25, .88), rgba(14, 107, 88, .75)),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            border-radius: 30px;
            padding: 56px 50px;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .compare-col-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .compare-col-title .badge-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .12);
            font-size: 17px;
        }
        .compare-list li {
            display: flex;
            gap: 12px;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            font-size: 15px;
            line-height: 1.7;
        }
        .compare-list li:last-child {
            border-bottom: none;
        }
        .compare-list .fa-circle-check {
            color: #5ecf9f;
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .compare-list .fa-circle-xmark {
            color: #ff8b8b;
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .vs-divider {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .vs-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 8px rgba(232, 147, 58, .25);
        }

        /* ========== 用户反馈 ========== */
        .feedback-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: all var(--transition);
        }
        .feedback-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .feedback-stars {
            color: var(--accent);
            font-size: 15px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .feedback-card blockquote {
            font-size: 15px;
            line-height: 1.85;
            color: var(--body-text);
            margin-bottom: 20px;
            border: none;
        }
        .feedback-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .feedback-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .feedback-user strong {
            font-size: 15px;
            color: var(--body-text);
            display: block;
        }
        .feedback-user span {
            font-size: 13px;
            color: var(--muted-text);
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion {
            background: transparent;
            border: none;
        }
        .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .accordion-item.is-active {
            border-color: rgba(14, 107, 88, .3);
            box-shadow: var(--shadow-sm);
        }
        .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--body-text);
            padding: 20px 24px 20px 54px;
            position: relative;
            background: transparent;
            border: none;
            min-height: auto;
        }
        .accordion-title:hover,
        .accordion-title:focus {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .accordion-title::before {
            content: "\f059";
            font-family: "Font Awesome 6 Free";
            font-weight: 400;
            position: absolute;
            left: 20px;
            top: 21px;
            color: var(--primary);
            font-size: 17px;
        }
        .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 22px;
            top: 23px;
            color: var(--muted-text);
            font-size: 14px;
            transition: transform var(--transition);
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .accordion-content {
            border: none;
            padding: 0 24px 22px 54px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--muted-text);
            background: var(--white);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg-light) 100%);
            border-radius: 30px;
            padding: 70px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 147, 58, .25), transparent 70%);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(14, 107, 88, .4), transparent 70%);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            margin-bottom: 18px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .75);
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 24px rgba(232, 147, 58, .3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(232, 147, 58, .4);
        }
        .btn-ghost-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .4);
        }
        .btn-ghost-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .08);
            transform: translateY(-3px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 30px;
            margin-top: 90px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }
        .footer-brand .brand-icon {
            background: var(--accent);
            box-shadow: 0 4px 14px rgba(232, 147, 58, .3);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .6);
            max-width: 340px;
            margin-bottom: 24px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 15px;
            color: rgba(255, 255, 255, .65);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links a i {
            font-size: 12px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 50px;
            padding-top: 26px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            font-size: 14px;
            color: rgba(255, 255, 255, .45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 70px;
            }
            .hide-sm {
                display: inline-flex;
            }
            .latest-card-media {
                flex-basis: 150px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 56px;
            }
            .header-inner {
                height: 64px;
            }
            .brand {
                font-size: 19px;
            }
            .nav-toggle {
                display: flex;
            }
            .site-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 18px 22px 24px;
                gap: 8px;
                box-shadow: 0 16px 40px rgba(14, 107, 88, .1);
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                transition: transform .4s cubic-bezier(.25, .8, .25, 1);
                border-radius: 0 0 20px 20px;
                opacity: 0;
                pointer-events: none;
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: 12px;
            }
            .nav-link.active::after {
                bottom: 6px;
                width: 6px;
                height: 6px;
                border-radius: 50%;
                left: auto;
                right: 16px;
                transform: none;
            }
            .nav-cta {
                margin-left: 0;
                justify-content: center;
                margin-top: 6px;
                padding: 13px 18px;
            }
            .hero {
                min-height: auto;
                padding: 130px 0 80px;
            }
            .hero h1 {
                font-size: 40px;
            }
            .hero-desc {
                font-size: 16px;
            }
            .hero-trust {
                gap: 14px;
            }
            .stat-card {
                padding: 26px 18px;
            }
            .stat-num {
                font-size: 32px;
            }
            .latest-card {
                flex-direction: column;
            }
            .latest-card-media {
                flex-basis: auto;
                height: 180px;
            }
            .compare-wrap {
                padding: 40px 28px;
            }
            .vs-divider {
                padding: 20px 0;
            }
            .vs-circle {
                width: 56px;
                height: 56px;
                font-size: 15px;
            }
            .cta-section {
                padding: 48px 26px;
            }
            .steps-wrap::before {
                display: none;
            }
            .step-item {
                margin-bottom: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 32px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 9px;
            }
            .brand {
                font-size: 17px;
            }
            .stat-num {
                font-size: 28px;
            }
            .faq-wrap {
                padding: 0 6px;
            }
            .accordion-title {
                font-size: 15px;
                padding-left: 46px;
                padding-right: 44px;
            }
            .accordion-content {
                padding-left: 46px;
                padding-right: 18px;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --primary: #0a5bd3;
            --primary-dark: #07409e;
            --primary-light: #e6f0fe;
            --accent: #f5a623;
            --accent-dark: #d98c0e;
            --dark: #0b1220;
            --dark-blue: #101c31;
            --text: #1f2a3e;
            --text-light: #6b7a8f;
            --bg: #f5f8fc;
            --surface: #ffffff;
            --border: #e4eaf2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(10, 20, 40, 0.06);
            --shadow-md: 0 10px 30px rgba(10, 20, 40, 0.08);
            --shadow-lg: 0 24px 60px rgba(10, 20, 40, 0.12);
            --spacer: 100px;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .grid-container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding-top: var(--spacer);
            padding-bottom: var(--spacer);
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-light);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 680px;
        }

        .text-center {
            text-align: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            line-height: 1;
        }

        .badge-accent {
            background: #fff4e0;
            color: var(--accent-dark);
        }

        .badge-dark {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 28px;
            border-radius: 999px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }

        .btn i {
            font-size: 14px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(10, 91, 211, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(10, 91, 211, 0.3);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 20px rgba(245, 166, 35, 0.25);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }

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

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.4px;
            white-space: nowrap;
        }

        .brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, #1f6fe5 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            box-shadow: 0 6px 16px rgba(10, 91, 211, 0.3);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            margin-left: 10px;
            box-shadow: 0 6px 18px rgba(245, 166, 35, 0.3);
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(10, 91, 211, 0.3);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 12px;
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .article-banner {
            position: relative;
            padding: 90px 0 70px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 18, 35, 0.72) 0%, rgba(8, 18, 35, 0.55) 60%, rgba(8, 18, 35, 0.75) 100%);
        }

        .article-banner .grid-container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 26px;
            color: rgba(255, 255, 255, 0.8);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 300px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .banner-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.6px;
            margin-bottom: 18px;
            color: #fff;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .banner-meta i {
            color: var(--accent);
        }

        .article-main {
            padding: 70px 0 70px;
        }

        .article-content-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 44px 46px;
            margin-bottom: 40px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #2b3649;
        }

        .article-content p {
            margin-bottom: 22px;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--dark);
            margin: 34px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--dark);
            margin: 28px 0 12px;
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin: 24px 0 10px;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 22px;
            padding-left: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fff9ef;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 26px 0;
            color: #7a5b22;
            font-size: 15px;
        }

        .article-content img {
            border-radius: 14px;
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(10, 91, 211, 0.25);
        }

        .article-content a:hover {
            border-bottom-color: var(--primary);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-content table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--dark);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 26px;
            margin-top: 32px;
            border-top: 1px solid var(--border);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-light);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .related-section {
            margin-top: 44px;
        }

        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 26px;
        }

        .related-header h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--dark);
        }

        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(10, 91, 211, 0.25);
        }

        .related-card-img {
            position: relative;
            height: 170px;
            overflow: hidden;
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }

        .related-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(10, 18, 35, 0.4));
        }

        .related-card-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }

        .related-card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .related-card-body h3 a {
            color: inherit;
        }

        .related-card-body h3 a:hover {
            color: var(--primary);
        }

        .related-card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .related-meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            gap: 16px;
        }

        .sidebar-widget {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            margin-bottom: 26px;
        }

        .widget-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .widget-title i {
            color: var(--primary);
            font-size: 16px;
        }

        .widget-about {
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .widget-about-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .widget-about-content {
            position: relative;
            z-index: 1;
        }

        .widget-about-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), #1f6fe5);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
            box-shadow: 0 10px 24px rgba(10, 91, 211, 0.3);
        }

        .widget-about h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .widget-about p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .widget-cat-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-cat-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px;
            border-radius: 12px;
            background: var(--bg);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .widget-cat-item:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            transform: translateX(4px);
        }

        .widget-cat-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .widget-cat-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .widget-cat-info {
            flex: 1;
            min-width: 0;
        }

        .widget-cat-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 2px;
        }

        .widget-cat-info p {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .widget-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .widget-cta {
            background: linear-gradient(135deg, var(--dark) 0%, #152238 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .widget-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .widget-cta .widget-cta-content {
            position: relative;
            z-index: 1;
        }

        .widget-cta h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .widget-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .faq-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 26px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.5;
        }

        .faq-item h3 i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 4px;
        }

        .faq-item p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            padding-left: 26px;
        }

        .cta-section {
            position: relative;
            padding: 90px 0;
            background-color: var(--dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 18, 35, 0.85), rgba(10, 91, 211, 0.75));
        }

        .cta-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--dark-blue);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 30px;
            font-size: 14px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, var(--accent), #ffbe4d);
            color: var(--dark);
            box-shadow: 0 6px 18px rgba(245, 166, 35, 0.3);
        }

        .footer-desc {
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }

        .footer-title {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 50px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .empty-state {
            text-align: center;
            padding: 60px 30px;
        }

        .empty-state-icon {
            font-size: 42px;
            color: var(--text-light);
            margin-bottom: 18px;
        }

        .empty-state h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .empty-state p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        @media (max-width: 1024px) {
            .banner-title {
                font-size: 34px;
            }
        }

        @media (max-width: 900px) {
            :root {
                --spacer: 70px;
            }

            .nav-toggle {
                display: flex;
            }

            .site-nav {
                position: fixed;
                top: 72px;
                right: 0;
                bottom: 0;
                width: 320px;
                max-width: 85vw;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 30px 24px;
                gap: 6px;
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
                transform: translateX(105%);
                transition: transform 0.35s ease;
                border-left: 1px solid var(--border);
                overflow-y: auto;
            }

            .site-nav.open {
                transform: translateX(0);
            }

            .nav-link {
                width: 100%;
                padding: 14px 16px;
                border-radius: 12px;
                font-size: 16px;
            }

            .nav-cta {
                width: 100%;
                justify-content: center;
                margin: 16px 0 0;
                padding: 14px;
            }

            .article-content-card {
                padding: 30px 26px;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            .article-banner {
                padding: 60px 0 50px;
            }

            .banner-title {
                font-size: 28px;
            }

            .banner-meta {
                gap: 14px;
                flex-direction: column;
            }

            .article-main {
                padding: 40px 0 50px;
            }

            .section-title {
                font-size: 28px;
            }

            .cta-title {
                font-size: 28px;
            }

            .cta-btns .btn {
                width: 100%;
            }

            .related-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

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

            .brand {
                font-size: 18px;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .article-content-card {
                padding: 24px 18px;
                border-radius: 12px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 21px;
            }

            .article-content h3 {
                font-size: 18px;
            }

            .widget-cat-item {
                padding: 10px;
            }

            .faq-item {
                padding: 20px 18px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #eff6ff;
            --accent: #f59e0b;
            --bg: #f8fafc;
            --white: #fff;
            --ink: #111827;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, .08);
            --shadow-hover: 0 20px 40px rgba(0, 0, 0, .12);
            --space: 5rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .grid-container {
            max-width: 1200px;
        }

        .mb-2 {
            margin-bottom: 1rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .35);
            flex-shrink: 0;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            position: relative;
            padding: 8px 14px;
            font-weight: 600;
            color: var(--muted);
            border-radius: 8px;
            font-size: .95rem;
            transition: all .2s;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: .9rem;
            transition: all .2s;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
            margin-left: 6px;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(37, 99, 235, .4);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 0;
            width: 44px;
            height: 44px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 10px;
            cursor: pointer;
            border-radius: 8px;
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: all .2s;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 7rem 0;
            color: #fff;
            text-align: center;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 23, 42, .88), rgba(30, 64, 175, .72), rgba(37, 99, 235, .55));
        }

        .page-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, .15);
            border: 1px solid rgba(255, 255, 255, .35);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: .5px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }

        .page-hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 18px;
            text-shadow: 0 4px 16px rgba(0, 0, 0, .15);
        }

        .page-hero p {
            max-width: 720px;
            margin: 0 auto 32px;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .85);
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: .95rem;
            transition: all .25s;
            border: 0;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-secondary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space) 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 3rem;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: .8rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--muted);
            font-size: 1rem;
        }

        /* ===== Entry Cards ===== */
        .entry-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem;
            height: 100%;
            position: relative;
            transition: all .3s ease;
        }

        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .card-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(37, 99, 235, .25);
        }

        .entry-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .entry-card p {
            color: var(--muted);
            font-size: .92rem;
            margin-bottom: 16px;
        }

        .card-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 14px;
        }

        .card-list li {
            display: flex;
            gap: 8px;
            color: var(--ink);
            font-size: .9rem;
            align-items: flex-start;
        }

        .card-list i {
            color: #16a34a;
            margin-top: 4px;
            font-size: .8rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: .75rem;
            font-weight: 700;
        }

        .tag-recommend {
            background: #fff3cd;
            color: #b45309;
        }

        /* ===== Steps ===== */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            transition: all .3s;
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
        }

        .step-item h3 {
            font-size: 1rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--muted);
            font-size: .88rem;
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: all .3s;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .feature-img {
            height: 180px;
            overflow: hidden;
            position: relative;
            background: #eef2f7;
            border-bottom: 1px solid var(--border);
        }

        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }

        .feature-card:hover .feature-img img {
            transform: scale(1.05);
        }

        .feature-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .feature-body h3 {
            font-size: 1.05rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .feature-body p {
            color: var(--muted);
            font-size: .9rem;
            flex: 1;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 700;
            font-size: .88rem;
            margin-top: 14px;
        }

        .feature-link i {
            transition: transform .2s;
        }

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

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-block {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all .3s;
        }

        .stat-block:hover {
            box-shadow: var(--shadow);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            color: var(--muted);
            font-size: .9rem;
            margin-top: 6px;
        }

        .security-note {
            margin-top: 2.5rem;
            background: var(--primary-light);
            border-radius: var(--radius);
            padding: 1.5rem 2rem;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .security-note i {
            color: var(--primary);
            font-size: 1.4rem;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .security-note p {
            color: var(--primary-dark);
            font-size: .95rem;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .2s;
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 1.1rem 1.5rem;
            font-weight: 700;
            font-size: .95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--ink);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: .9rem;
            color: var(--muted);
            transition: transform .2s;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-answer {
            padding: 1rem 1.5rem 1.2rem;
            color: var(--muted);
            font-size: .9rem;
            border-top: 1px solid var(--border);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a, #1e40af);
            border-radius: 32px;
            padding: 4rem 2rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, .05);
            border-radius: 50%;
            top: -100px;
            right: -80px;
        }

        .cta-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .8);
            margin-bottom: 28px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding-top: 3.5rem;
            margin-top: 5rem;
        }

        .site-footer .grid-container {
            padding-bottom: 2rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: .9rem;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-weight: 700;
            margin-bottom: 14px;
            font-size: 1rem;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: #94a3b8;
            font-size: .9rem;
            transition: all .2s;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-links i {
            font-size: .75rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            font-size: .82rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --space: 3.5rem;
            }

            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .page-hero h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 900px) {
            .nav-toggle {
                display: flex;
            }

            .site-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 1rem;
                box-shadow: var(--shadow);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .site-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-cta {
                justify-content: center;
                margin-top: 6px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --space: 3rem;
            }

            .page-hero {
                padding: 5rem 0;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .steps-wrap,
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .cta-section {
                margin: 0 10px;
                padding: 3rem 1.5rem;
            }

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

/* roulang page: category3 */
:root {
    --primary: #2a5cff;
    --primary-dark: #1a3fbd;
    --primary-light: #eaf0ff;
    --accent: #ff7a1a;
    --accent-light: #fff3e9;
    --dark: #1b2430;
    --text: #252c38;
    --muted: #6b7280;
    --bg: #f7f8fc;
    --bg-white: #ffffff;
    --line: #e5e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 30px rgba(20, 30, 60, 0.08);
    --shadow-hover: 0 14px 40px rgba(20, 30, 60, 0.13);
    --transition: all 0.3s ease;
    --space-section: 80px;
}

*, *::before, *::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}
ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}
h1, h2, h3, h4, h5, h6 {
    color: var(--dark);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 16px 0;
}
p {
    margin: 0 0 16px 0;
}
:focus-visible {
    outline: 3px solid rgba(42, 92, 255, 0.4);
    outline-offset: 2px;
    border-radius: 4px;
}

.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.grid-container {
    max-width: 1200px !important;
}

/* ===== Header 导航 ===== */
.site-header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
    box-shadow: 0 6px 24px rgba(20, 30, 60, 0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    min-height: 72px;
    gap: 20px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.3px;
    white-space: nowrap;
}
.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #4a7bff);
    border-radius: 12px;
    display: flex !important;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 14px rgba(42, 92, 255, 0.3);
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: nowrap;
}
.site-nav .nav-link {
    padding: 10px 16px;
    border-radius: 10px;
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    white-space: nowrap;
    transition: var(--transition);
}
.site-nav .nav-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}
.site-nav .nav-link.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #ff9533);
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 24px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 4px 14px rgba(255, 122, 26, 0.3);
    transition: var(--transition);
    white-space: nowrap;
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 122, 26, 0.42);
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: var(--bg);
}
.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Page Banner 分类页横幅 ===== */
.page-banner {
    padding: 170px 0 80px;
    background: linear-gradient(135deg, #0e1830 0%, #1a2c52 55%, #203a70 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 20, 45, 0.55);
    z-index: 1;
}
.page-banner .grid-container {
    position: relative;
    z-index: 2;
}
.banner-inner {
    max-width: 760px;
}
.banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 6px 18px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}
.banner-inner h1 {
    color: #fff;
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 18px;
    line-height: 1.2;
}
.banner-inner p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 17px;
    line-height: 1.8;
    max-width: 640px;
    margin-bottom: 28px;
}
.banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.btn-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary-dark) !important;
    padding: 12px 28px;
    border-radius: 28px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}
.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
}
.btn-ghost-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1.5px solid rgba(255, 255, 255, 0.45);
    color: #fff !important;
    padding: 12px 28px;
    border-radius: 28px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
}
.btn-ghost-white:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.7);
}

/* ===== 分类概览 ===== */
.category-overview {
    padding: var(--space-section) 0;
    background: var(--bg);
}
.overview-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}
.overview-content .section-label {
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}
.overview-content h2 {
    font-size: 34px;
    margin-bottom: 18px;
    letter-spacing: -0.3px;
}
.overview-content p {
    color: var(--muted);
    font-size: 16px;
    margin-bottom: 24px;
}
.overview-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.overview-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text);
}
.overview-list li i {
    color: var(--primary);
    background: var(--primary-light);
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    margin-top: 3px;
}
.overview-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.stat-card .num {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}
.stat-card .txt {
    font-size: 14px;
    color: var(--muted);
    margin-top: 6px;
}

/* ===== 最新活动 ===== */
.latest-section {
    padding: 0 0 var(--space-section);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
}
.section-head .section-label {
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}
.section-head h2 {
    font-size: 32px;
    margin-bottom: 0;
    letter-spacing: -0.3px;
}
.section-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
.section-link:hover {
    gap: 10px;
}
.activity-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.activity-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.activity-card .cover {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.activity-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.activity-card:hover .cover img {
    transform: scale(1.06);
}
.activity-card .badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(255, 122, 26, 0.3);
}
.activity-card .card-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.activity-card .date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
}
.activity-card .date i {
    color: var(--primary);
}
.activity-card h3 {
    font-size: 17px;
    margin: 0;
    line-height: 1.5;
}
.activity-card h3 a:hover {
    color: var(--primary);
}
.activity-card .desc {
    font-size: 14px;
    color: var(--muted);
    margin: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.activity-card .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    margin-top: auto;
}
.activity-card .read-more {
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.activity-card .read-more:hover {
    gap: 10px;
}
.activity-card .tag {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* ===== 资讯公告时间线 ===== */
.news-section {
    padding: var(--space-section) 0;
    background: #fff;
}
.news-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
}
.news-list {
    display: flex;
    flex-direction: column;
}
.news-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
    transition: var(--transition);
}
.news-item:last-child {
    border-bottom: none;
}
.news-item:hover .news-title {
    color: var(--primary);
}
.news-date {
    flex-shrink: 0;
    width: 90px;
    background: var(--primary-light);
    border-radius: 12px;
    text-align: center;
    padding: 14px 8px;
    align-self: flex-start;
}
.news-date .day {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}
.news-date .month {
    font-size: 13px;
    color: var(--muted);
}
.news-body {
    flex: 1;
}
.news-title {
    font-size: 17px;
    font-weight: 600;
    transition: var(--transition);
    margin-bottom: 6px;
}
.news-body p {
    font-size: 14px;
    color: var(--muted);
    margin: 0 0 10px 0;
}
.news-type {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
    background: var(--accent-light);
    padding: 3px 12px;
    border-radius: 16px;
}
.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.sidebar-card {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
}
.sidebar-card .side-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-card .side-title i {
    color: var(--primary);
}
.side-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.side-list a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition);
    background: #fff;
    border: 1px solid var(--line);
}
.side-list a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateX(4px);
}
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary);
    color: #fff !important;
    padding: 12px 28px;
    border-radius: 26px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(42, 92, 255, 0.25);
}
.btn-primary-custom:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(42, 92, 255, 0.35);
}

/* ===== 热门专题 ===== */
.topics-section {
    padding: var(--space-section) 0;
    background: linear-gradient(160deg, #f0f4ff 0%, var(--bg) 100%);
}
.topic-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.topic-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    transition: var(--transition);
}
.topic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.topic-card .cover {
    width: 220px;
    flex-shrink: 0;
    min-height: 220px;
    overflow: hidden;
}
.topic-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.topic-card:hover .cover img {
    transform: scale(1.05);
}
.topic-card .body {
    padding: 26px;
    display: flex;
    flex-direction: column;
}
.topic-card .topic-tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
}
.topic-card h3 {
    font-size: 19px;
    margin-bottom: 10px;
}
.topic-card p {
    font-size: 14px;
    color: var(--muted);
    flex: 1;
    margin-bottom: 16px;
}

/* ===== 订阅 CTA ===== */
.cta-section {
    padding: 0 0 var(--space-section);
}
.cta-card {
    background: linear-gradient(135deg, var(--primary) 0%, #4a7bff 60%, #5d8aff 100%);
    border-radius: 24px;
    padding: 60px;
    position: relative;
    overflow: hidden;
    text-align: center;
}
.cta-card::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    top: -100px;
    right: -80px;
}
.cta-card::after {
    content: '';
    position: absolute;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    bottom: -60px;
    left: 40px;
}
.cta-card h2 {
    color: #fff;
    font-size: 34px;
    margin-bottom: 14px;
    position: relative;
    z-index: 2;
}
.cta-card p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 560px;
    margin: 0 auto 30px;
    font-size: 16px;
    position: relative;
    z-index: 2;
}
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    color: var(--primary) !important;
    padding: 14px 36px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}
.cta-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* ===== FAQ ===== */
.faq-section {
    padding: 0 0 var(--space-section);
}
.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}
.faq-item .q {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}
.faq-item .q i {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
}
.faq-item .a {
    padding-left: 30px;
    font-size: 14px;
    color: var(--muted);
}

/* ===== Footer ===== */
.site-footer {
    background: #121a29;
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
    margin-top: 0;
}
.site-footer .grid-container {
    max-width: 1200px !important;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}
.footer-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #4a7bff);
    border-radius: 12px;
    display: flex !important;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 14px rgba(42, 92, 255, 0.3);
}
.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 340px;
    margin-bottom: 0;
}
.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.footer-links a:hover {
    color: #fff;
    padding-left: 4px;
}
.footer-links a i {
    font-size: 11px;
    color: var(--primary);
}
.mb-2 {
    margin-bottom: 32px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 24px 0;
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}
.footer-bottom a:hover {
    color: #fff;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    :root {
        --space-section: 60px;
    }
    .page-banner {
        padding: 140px 0 60px;
    }
    .banner-inner h1 {
        font-size: 36px;
    }
    .activity-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-layout {
        grid-template-columns: 1fr 280px;
    }
    .topic-card .cover {
        width: 180px;
    }
    .cta-card {
        padding: 50px 40px;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --space-section: 48px;
    }
    .header-inner {
        min-height: 64px;
    }
    .nav-toggle {
        display: flex;
    }
    .site-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 16px 20px;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    .site-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .site-nav .nav-link,
    .site-nav .nav-cta {
        text-align: center;
        justify-content: center;
    }
    .site-nav .nav-link {
        padding: 14px 16px;
        border-radius: 10px;
    }
    .site-nav .nav-link.active {
        background: var(--primary-light);
        color: var(--primary);
    }
    .site-nav .nav-cta {
        margin-top: 8px;
    }
    .page-banner {
        padding: 120px 0 50px;
    }
    .banner-inner h1 {
        font-size: 30px;
    }
    .banner-inner p {
        font-size: 15px;
    }
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .activity-grid {
        grid-template-columns: 1fr;
    }
    .news-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .topic-grid {
        grid-template-columns: 1fr;
    }
    .topic-card {
        flex-direction: column;
    }
    .topic-card .cover {
        width: 100%;
        height: 180px;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .cta-card {
        padding: 40px 24px;
    }
    .cta-card h2 {
        font-size: 26px;
    }
    .overview-stats {
        grid-template-columns: 1fr 1fr;
    }
    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .section-head h2 {
        font-size: 26px;
    }
}

@media screen and (max-width: 520px) {
    :root {
        --space-section: 40px;
    }
    .container-custom,
    .grid-container {
        padding: 0 16px;
    }
    .brand {
        font-size: 17px;
    }
    .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 14px;
    }
    .banner-inner h1 {
        font-size: 26px;
    }
    .banner-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .banner-actions a {
        justify-content: center;
    }
    .overview-stats {
        grid-template-columns: 1fr;
    }
    .news-item {
        flex-direction: column;
        gap: 12px;
    }
    .news-date {
        width: auto;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 16px;
    }
    .news-date .day {
        font-size: 18px;
    }
    .cta-card {
        padding: 36px 20px;
    }
    .cta-btn {
        padding: 12px 26px;
        font-size: 15px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: category2 */
:root {
            --primary: #0f2044;
            --primary-light: #1d3563;
            --primary-dark: #081429;
            --accent: #f06728;
            --accent-light: #ff8a50;
            --accent-dark: #d44e14;
            --bg: #f5f7fb;
            --bg-light: #ffffff;
            --bg-dark: #0b1630;
            --text: #1a2332;
            --text-light: #5c6b7a;
            --text-muted: #8a98a8;
            --border: #e6ebf1;
            --border-light: #eef1f5;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow: 0 6px 20px rgba(15, 32, 68, 0.08);
            --shadow-lg: 0 14px 40px rgba(15, 32, 68, 0.14);
            --shadow-accent: 0 8px 24px rgba(240, 103, 40, 0.25);
            --transition: all 0.25s ease;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, 'Hiragino Sans GB', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ====== Header / Nav ====== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 12px rgba(15, 32, 68, 0.05);
            padding: 14px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            font-size: 16px;
            box-shadow: 0 4px 10px rgba(15, 32, 68, 0.2);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .nav-link:hover {
            background: var(--bg);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(15, 32, 68, 0.2);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-weight: 600;
            font-size: 0.93rem;
            padding: 9px 20px;
            border-radius: 12px;
            margin-left: 6px;
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(240, 103, 40, 0.35);
            color: #fff;
        }
        .nav-cta i {
            font-size: 13px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 42px;
            height: 42px;
            padding: 10px;
            cursor: pointer;
            border-radius: 10px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg);
        }

        /* ====== Page Banner ====== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 32, 68, 0.92), rgba(8, 20, 41, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 70px 0 80px;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(240, 103, 40, 0.25);
            filter: blur(60px);
        }
        .page-banner .grid-container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .breadcrumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.45);
        }
        .page-banner h1 {
            font-size: clamp(1.9rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .page-banner h1 span {
            color: var(--accent-light);
        }
        .page-banner .banner-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.8;
        }
        .banner-tags {
            display: flex;
            gap: 10px;
            margin-top: 22px;
            flex-wrap: wrap;
        }
        .banner-tags span {
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            backdrop-filter: blur(4px);
        }
        .banner-tags i {
            color: var(--accent-light);
            font-size: 12px;
        }

        /* ====== Section Common ====== */
        .section {
            padding: 70px 0;
        }
        .section-sm {
            padding: 50px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 44px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 103, 40, 0.1);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 15px;
            border-radius: 30px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 0.98rem;
            line-height: 1.7;
        }

        /* ====== Stats / Overview ====== */
        .stats-section {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
            padding: 50px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: transparent;
            background: #fff;
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-num span {
            color: var(--accent);
        }
        .stat-label {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-top: 6px;
            font-weight: 500;
        }
        .stat-icon {
            display: inline-flex;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(15, 32, 68, 0.08);
            color: var(--primary);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        /* ====== Steps / Process ====== */
        .steps-section {
            padding: 70px 0;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 12px;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(15, 32, 68, 0.2);
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-card .step-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 600;
        }
        .step-card .step-link:hover {
            color: var(--accent-dark);
        }
        .step-card .step-link i {
            font-size: 12px;
            transition: transform 0.2s;
        }
        .step-card .step-link:hover i {
            transform: translateX(4px);
        }

        /* ====== Tutorial Cards ====== */
        .tutorial-section {
            padding: 70px 0;
            background: var(--bg);
        }
        .tutorial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .tutorial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .tutorial-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .tutorial-card .card-img {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .tutorial-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tutorial-card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 32, 68, 0.85);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-img .tag.dark {
            background: rgba(240, 103, 40, 0.9);
        }
        .tutorial-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tutorial-card .card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .tutorial-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            margin-top: auto;
        }
        .card-meta i {
            font-size: 12px;
        }
        .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .card-meta .meta-link {
            margin-left: auto;
            color: var(--accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .card-meta .meta-link:hover {
            color: var(--accent-dark);
        }

        /* ====== Tips / Compare ====== */
        .tips-section {
            padding: 70px 0;
            background: var(--bg-dark);
            color: #fff;
        }
        .tips-section .section-head h2 {
            color: #fff;
        }
        .tips-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .tips-section .section-head .eyebrow {
            background: rgba(240, 103, 40, 0.2);
            color: var(--accent-light);
        }
        .tips-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 20px;
        }
        .tip-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 34px 30px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .tip-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .tip-card .tip-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .tip-card.tip-beginner .tip-icon {
            background: rgba(240, 103, 40, 0.25);
            color: var(--accent-light);
        }
        .tip-card.tip-advanced .tip-icon {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .tip-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .tip-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .tip-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }
        .tip-list li i {
            color: var(--accent-light);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .tip-list li.dim i {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ====== FAQ ====== */
        .faq-section {
            padding: 70px 0;
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(15, 32, 68, 0.04);
        }
        .faq-item:hover {
            border-color: rgba(15, 32, 68, 0.15);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            width: 32px;
            height: 32px;
            background: rgba(240, 103, 40, 0.1);
            color: var(--accent);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
        }
        .faq-item summary .fa-chevron-down {
            margin-left: auto;
            font-size: 13px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 68px;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item .faq-answer a {
            color: var(--accent);
            font-weight: 600;
        }
        .faq-item .faq-answer a:hover {
            color: var(--accent-dark);
        }

        /* ====== CTA ====== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            left: -80px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(240, 103, 40, 0.3);
            filter: blur(80px);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.7rem, 3vw, 2.3rem);
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 14px;
            font-size: 0.98rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            box-shadow: var(--shadow-accent);
        }
        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(240, 103, 40, 0.4);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #fff;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
            color: #fff;
        }
        .btn i {
            font-size: 14px;
        }

        /* ====== Footer ====== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .site-footer .mb-2 {
            margin-bottom: 20px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-links i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.3);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 36px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ====== Responsive ====== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tutorial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 10px 0;
            }
            .nav-toggle {
                display: flex;
            }
            .site-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.3s ease;
                align-items: stretch;
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                display: block;
                padding: 12px 16px;
                font-size: 1rem;
                text-align: center;
            }
            .nav-cta {
                justify-content: center;
                margin: 10px 0 0;
            }
            .page-banner {
                padding: 50px 0 60px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 50px 0;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .tutorial-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-num {
                font-size: 1.7rem;
            }
            .page-banner h1 {
                font-size: 1.45rem;
            }
            .page-banner .banner-sub {
                font-size: 0.92rem;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
            .faq-item summary {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px 52px;
            }
            .tip-card {
                padding: 26px 20px;
            }
            .brand {
                font-size: 1.05rem;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
        }