/* roulang page: index */
:root {
            --bg-0: #0A0D12;
            --bg-1: #11161D;
            --bg-2: #1A212B;
            --line: #222B36;
            --primary: #0CF59C;
            --primary-dim: rgba(12, 245, 156, 0.1);
            --gold: #F2B544;
            --text-1: #EDF2F7;
            --text-2: #96A4B4;
            --text-3: #5E6C7B;
            --danger: #FF5D73;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-num: "DIN Alternate", "Bahnschrift", sans-serif;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            --section-gap: 120px;
            --panel-pad: 28px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg-0);
            color: var(--text-1);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: #bfffe8;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1140px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        @media (max-width: 1199.98px) {
            .section {
                padding: 100px 0;
            }
        }

        @media (max-width: 575.98px) {
            .section {
                padding: 64px 0;
            }
        }

        .section-header {
            position: relative;
            padding-left: 20px;
            margin-bottom: 40px;
        }

        .section-header .section-bar {
            position: absolute;
            left: 0;
            top: 8px;
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-header h2 {
            font-size: clamp(26px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin: 0 0 8px;
        }

        .section-header .section-subtitle {
            color: var(--text-2);
            font-size: 14px;
            margin: 0;
        }

        /* 按钮 */
        .btn-primary-custom,
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .18s ease;
            white-space: nowrap;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #08120C;
            border-color: var(--primary);
        }

        .btn-primary-custom:hover {
            background: #2ff7ab;
            border-color: #2ff7ab;
            color: #08120C;
            box-shadow: 0 4px 20px rgba(12, 245, 156, 0.25);
        }

        .btn-primary-custom:active {
            transform: translateY(1px);
        }

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

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

        .btn-outline-custom:hover {
            background: var(--primary-dim);
            color: var(--primary);
        }

        .btn-outline-custom:active {
            transform: translateY(1px);
        }

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

        .btn-lg {
            height: 50px;
            padding: 0 32px;
            font-size: 16px;
        }

        .btn-sm {
            height: 34px;
            padding: 0 16px;
            font-size: 13px;
            font-weight: 600;
        }

        .btn-primary-custom {
            border: none;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background .3s ease, border-color .3s ease;
        }

        .site-header.scrolled {
            background: rgba(10, 13, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .site-header .navbar {
            min-height: 84px;
            padding: 0;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-1);
            line-height: 1;
        }

        .site-header .navbar-brand:hover {
            color: var(--text-1);
        }

        .site-header .navbar-brand .logo-icon {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .site-header .navbar-brand strong {
            font-weight: 800;
        }

        .site-header .navbar-brand .logo-dot {
            color: var(--primary);
            margin-left: 2px;
        }

        .navbar-nav {
            gap: 36px;
        }

        .navbar-nav .nav-link {
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            transition: color .2s ease;
            background: none;
            border: none;
        }

        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .25s ease;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: #fff;
        }

        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }

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

        .nav-cta {
            margin-left: 24px;
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            padding: 8px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--primary-dim);
        }

        .navbar-toggler-icon {
            width: 1.4em;
            height: 1.4em;
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%230CF59C' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            background-size: contain;
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--bg-1);
                border: 1px solid var(--line);
                border-radius: var(--radius);
                padding: 16px 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
            }

            .navbar-nav {
                gap: 0;
            }

            .navbar-nav .nav-link {
                padding: 12px 0;
                border-bottom: 1px solid var(--line);
            }

            .navbar-nav .nav-link:last-child {
                border-bottom: none;
            }

            .nav-cta {
                margin: 16px 0 0;
            }
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 88vh;
            min-height: 600px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, #0A0D12 0%, rgba(10, 13, 18, 0.82) 45%, rgba(10, 13, 18, 0.3) 100%);
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 55%;
            height: 65%;
            background: radial-gradient(circle, rgba(12, 245, 156, 0.14) 0%, transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .hero-container {
            position: relative;
            z-index: 2;
            width: 100%;
            min-height: inherit;
            display: flex;
            flex-direction: column;
            padding-top: 140px;
            padding-bottom: 50px;
        }

        .hero-row {
            flex-grow: 1;
            display: flex;
            align-items: center;
        }

        .hero-content h1 {
            font-size: clamp(36px, 5vw, 54px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0 0 20px;
            color: var(--text-1);
        }

        .hero-content .brand-highlight {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-2);
            line-height: 1.7;
            margin: 0 0 32px;
            max-width: 460px;
        }

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

        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 36px;
            margin-top: auto;
            padding-top: 40px;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.04em;
            line-height: 1.1;
        }

        .stat-label {
            font-size: 12px;
            color: var(--text-3);
            margin-top: 4px;
        }

        .stat-divider {
            width: 1px;
            height: 38px;
            background: var(--line);
        }

        @media (max-width: 1199.98px) {
            .hero-stats {
                justify-content: flex-start;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 991.98px) {
            .hero-container {
                padding-top: 120px;
            }

            .hero-content h1 {
                font-size: 40px;
            }
        }

        @media (max-width: 575.98px) {
            .hero-container {
                padding-top: 120px;
                padding-bottom: 40px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-stats {
                flex-direction: column;
                align-items: stretch;
                gap: 20px;
            }

            .stat-item {
                align-items: flex-start;
                flex-direction: row;
                justify-content: space-between;
                align-items: baseline;
            }

            .stat-num {
                font-size: 30px;
            }

            .stat-divider {
                width: 100%;
                height: 1px;
            }

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

        /* 玩法介绍 */
        .gameplay-section {
            background: var(--bg-0);
        }

        .gameplay-list {
            display: flex;
            flex-direction: column;
            padding-right: 24px;
        }

        .gameplay-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--line);
        }

        .gameplay-item:first-child {
            padding-top: 8px;
        }

        .gameplay-item:last-child {
            border-bottom: none;
            padding-bottom: 4px;
        }

        .gameplay-num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
            letter-spacing: 0.04em;
            min-width: 44px;
            padding-top: 2px;
        }

        .gameplay-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-1);
            line-height: 1.4;
        }

        .gameplay-body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.7;
            margin: 0;
        }

        .gameplay-media {
            position: relative;
            padding: 0 0 28px 30px;
        }

        .gameplay-media .media-main {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--line);
        }

        .gameplay-media .media-main img {
            display: block;
            width: 100%;
            height: auto;
        }

        .gameplay-media .media-float {
            position: absolute;
            right: 0;
            bottom: 0;
            width: 55%;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid var(--bg-0);
            box-shadow: var(--shadow);
        }

        .gameplay-media .media-float img {
            display: block;
            width: 100%;
            height: auto;
        }

        @media (max-width: 991.98px) {
            .gameplay-section .row {
                row-gap: 48px;
            }

            .gameplay-list {
                padding-right: 0;
            }

            .gameplay-media {
                max-width: 520px;
            }
        }

        /* 奖励预览 */
        .rewards-section {
            background: var(--bg-1);
        }

        .rewards-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .rewards-header h2 {
            font-size: clamp(26px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 10px;
        }

        .rewards-header .section-subtitle {
            color: var(--text-2);
            font-size: 14px;
            margin: 0;
        }

        .rewards-grid {
            display: grid;
            grid-template-columns: 2fr 3fr 2fr;
            gap: 24px;
            align-items: stretch;
        }

        .reward-block {
            background: var(--bg-2);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: var(--panel-pad);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            transition: border-color .18s ease, box-shadow .18s ease;
        }

        .reward-block:hover {
            border-color: rgba(12, 245, 156, 0.4);
            box-shadow: var(--shadow);
        }

        .reward-center {
            background: rgba(242, 181, 68, 0.05);
            border: 1px solid rgba(242, 181, 68, 0.4);
            border-top: 2px solid var(--gold);
            box-shadow: var(--shadow);
        }

        .reward-center:hover {
            border-color: rgba(242, 181, 68, 0.6);
        }

        .reward-icon {
            width: 40px;
            height: 40px;
            color: var(--gold);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .reward-block h3 {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-1);
            margin: 0 0 12px;
            line-height: 1.4;
        }

        .reward-block p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.75;
            margin: 0 0 20px;
            flex-grow: 1;
        }

        .rewards-note {
            text-align: center;
            font-size: 12px;
            color: var(--text-3);
            margin: 32px 0 0;
        }

        @media (max-width: 991.98px) {
            .rewards-grid {
                grid-template-columns: 1fr;
            }

            .reward-block {
                align-items: flex-start;
            }
        }

        /* 任务进度 */
        .missions-section {
            background: var(--bg-0);
        }

        .missions-wrap .row {
            row-gap: 48px;
        }

        .missions-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-1);
            margin: 0 0 8px;
        }

        .task-list {
            margin-top: 16px;
        }

        .task-row {
            padding: 18px 14px;
            border-bottom: 1px solid var(--line);
            border-radius: 8px;
            transition: background .2s ease;
        }

        .task-row:last-child {
            border-bottom: none;
        }

        .task-row:hover {
            background: var(--primary-dim);
        }

        .task-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 12px;
        }

        .task-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-1);
            line-height: 1.4;
        }

        .task-reward {
            font-size: 13px;
            color: var(--text-3);
            background: var(--bg-2);
            border-radius: 4px;
            padding: 2px 10px;
            white-space: nowrap;
        }

        .task-bottom {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .task-bottom .progress {
            flex: 1;
            height: 6px;
            background: var(--bg-2);
            border-radius: 3px;
            overflow: hidden;
        }

        .task-bottom .progress-bar {
            background-color: var(--primary);
            border-radius: 3px;
        }

        .task-pct {
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.04em;
            min-width: 38px;
            text-align: right;
        }

        .season-card {
            background: var(--bg-2);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow);
        }

        .season-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-1);
            margin: 0 0 20px;
            line-height: 1.3;
        }

        .season-points {
            font-family: var(--font-num);
            font-size: 50px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.04em;
            line-height: 1;
            margin-bottom: 12px;
        }

        .season-gap {
            font-size: 14px;
            color: var(--text-2);
            margin: 0 0 24px;
        }

        @media (max-width: 575.98px) {
            .season-card {
                padding: 20px;
            }

            .season-points {
                font-size: 40px;
            }

            .task-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-1);
        }

        .faq-section .section-header {
            margin-bottom: 40px;
        }

        .faq-wrap {
            max-width: 840px;
        }

        .faq-accordion .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--line);
            border-radius: 0 !important;
        }

        .faq-accordion .accordion-item:last-child {
            border-bottom: none;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            box-shadow: inset 2px 0 0 var(--primary);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-1);
            font-size: 16px;
            font-weight: 600;
            padding: 22px 12px;
            box-shadow: none;
            border: none;
            line-height: 1.5;
            position: relative;
            text-align: left;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: transparent;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            content: '';
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%230CF59C' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M8 3v10M3 8h10'/%3e%3c/svg%3e");
            background-size: 16px;
            width: 16px;
            height: 16px;
            transition: transform .25s ease;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%230CF59C' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M3 8h10'/%3e%3c/svg%3e");
            transform: rotate(0deg);
        }

        .faq-accordion .accordion-body {
            padding: 0 12px 24px;
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-section {
            position: relative;
            background: var(--bg-0);
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60%;
            height: 120%;
            background: radial-gradient(circle, var(--primary-dim) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 16px;
            color: var(--text-1);
            line-height: 1.3;
        }

        .cta-subtitle {
            font-size: 16px;
            color: var(--text-2);
            margin: 0 0 36px;
        }

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

        @media (max-width: 575.98px) {
            .cta-actions .btn {
                width: 100%;
            }
        }

        /* 最新动态 */
        .updates-section {
            background: var(--bg-1);
        }

        .updates-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 20px;
        }

        .updates-head .section-header {
            margin-bottom: 0;
            padding-left: 20px;
        }

        .updates-more {
            font-size: 14px;
            color: var(--text-2);
            white-space: nowrap;
            border-bottom: 1px solid transparent;
            transition: color .2s ease, border-color .2s ease;
            padding-bottom: 2px;
        }

        .updates-more:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .updates-list {
            border-top: 1px solid var(--line);
        }

        .update-row {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--line);
            transition: background .18s ease;
        }

        .update-row:hover {
            background: rgba(12, 245, 156, 0.04);
        }

        .update-date {
            font-family: var(--font-num);
            font-size: 14px;
            color: var(--text-3);
            letter-spacing: 0.04em;
            width: 90px;
            flex-shrink: 0;
        }

        .update-badge {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-dim);
            border-radius: 4px;
            padding: 2px 10px;
            flex-shrink: 0;
            white-space: nowrap;
        }

        .update-main {
            flex: 1;
            min-width: 0;
        }

        .update-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-1);
            line-height: 1.5;
            display: block;
            margin-bottom: 4px;
            transition: color .18s ease;
        }

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

        .update-excerpt {
            font-size: 14px;
            color: var(--text-2);
            margin: 0;
            line-height: 1.6;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .updates-empty {
            border: 1px dashed var(--line);
            border-radius: var(--radius);
            padding: 60px 20px;
            text-align: center;
            color: var(--text-3);
            font-size: 14px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .updates-empty svg {
            width: 32px;
            height: 32px;
            color: var(--text-3);
        }

        @media (max-width: 575.98px) {
            .update-row {
                flex-wrap: wrap;
                gap: 12px 16px;
                padding: 18px 0;
            }

            .update-date {
                width: auto;
            }

            .update-main {
                flex-basis: 100%;
            }

            .update-excerpt {
                white-space: normal;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-1);
            border-top: 1px solid var(--line);
            padding: 60px 0 32px;
        }

        .footer-grid {
            row-gap: 40px;
        }

        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-1);
            margin-bottom: 16px;
            line-height: 1;
        }

        .footer-brand .logo:hover {
            color: var(--text-1);
        }

        .footer-brand .logo-dot {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-1);
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            padding: 3px 0;
        }

        .footer-col ul li a {
            color: var(--text-2);
            transition: color .18s ease;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-disclaimer {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--line);
            font-size: 12px;
            color: var(--text-3);
            text-align: center;
            line-height: 1.7;
        }

        .footer-copyright {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-3);
            text-align: center;
        }

        @media (max-width: 575.98px) {
            .footer-grid {
                row-gap: 32px;
            }

            .site-footer {
                padding: 48px 0 28px;
            }

            .footer-disclaimer {
                margin-top: 32px;
                text-align: left;
            }
        }

        /* 数字字体 */
        .stat-num,
        .season-points,
        .task-pct,
        .update-date {
            font-family: var(--font-num);
        }

/* roulang page: category1 */
:root {
            --bg-0: #0A0D12;
            --bg-1: #11161D;
            --bg-2: #1A212B;
            --line: #222B36;
            --primary: #0CF59C;
            --primary-dim: rgba(12, 245, 156, 0.1);
            --gold: #F2B544;
            --text-1: #EDF2F7;
            --text-2: #96A4B4;
            --text-3: #5E6C7B;
            --danger: #FF5D73;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-number: "DIN Alternate", "Bahnschrift", sans-serif;
            --transition: 180ms ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg-0);
            color: var(--text-1);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a:hover {
            color: #35ffb3;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1140px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(10, 13, 18, 0.8);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            transition: background 0.3s ease, border-color 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(10, 13, 18, 0.92);
            border-color: rgba(34, 43, 54, 0.7);
        }

        .navbar {
            min-height: 84px;
            padding: 0;
        }

        .navbar-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-1);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.01em;
            padding: 10px 0;
        }

        .navbar-brand:hover {
            color: var(--text-1);
        }

        .navbar-brand .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .navbar-brand strong {
            color: var(--primary);
            font-weight: 800;
        }

        .logo-dot {
            color: var(--primary);
            margin-left: 2px;
            font-size: 22px;
            line-height: 1;
            display: inline-block;
            vertical-align: middle;
        }

        .navbar-nav {
            gap: 10px;
        }

        .nav-item .nav-link {
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 4px;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition);
        }

        .nav-item .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }

        .nav-item .nav-link:hover {
            color: #fff;
        }

        .nav-item .nav-link:hover::after,
        .nav-item .nav-link.active::after {
            width: 100%;
        }

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

        .navbar-toggler {
            border: 1px solid var(--line);
            background: var(--bg-1);
            border-radius: 8px;
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--primary-dim);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%23EDF2F7' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #08120C;
            border: 1px solid var(--primary);
            font-weight: 700;
            height: 44px;
            padding: 0 24px;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            cursor: pointer;
            font-size: 15px;
        }

        .btn-primary-custom:hover {
            background: #21ffad;
            color: #08120C;
            box-shadow: 0 4px 20px rgba(12, 245, 156, 0.25);
            transform: translateY(-1px);
        }

        .btn-primary-custom:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            font-weight: 600;
            height: 44px;
            padding: 0 24px;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            cursor: pointer;
            font-size: 15px;
        }

        .btn-outline-custom:hover {
            background: var(--primary-dim);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline-custom:active {
            transform: translateY(1px);
        }

        .btn-lg-custom {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
            border-radius: 8px;
        }

        /* ===== Hero / Page header ===== */
        .page-hero {
            padding: 96px 0 64px;
            background: radial-gradient(900px 300px at 90% -10%, var(--primary-dim), transparent 70%), var(--bg-0);
            border-bottom: 1px solid var(--line);
        }

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-3);
            margin-bottom: 28px;
        }

        .breadcrumb-line a {
            color: var(--text-3);
        }

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

        .breadcrumb-line .sep {
            color: var(--text-3);
            opacity: 0.6;
        }

        .breadcrumb-line .current {
            color: var(--text-2);
        }

        .page-hero h1 {
            font-size: clamp(30px, 4vw, 38px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
            margin-top: 0;
        }

        .hero-line {
            width: 32px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            margin: 22px 0;
        }

        .page-hero .lead-desc {
            font-size: 15px;
            color: var(--text-2);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ===== Feature card ===== */
        .feature-section {
            padding: 80px 0 56px;
        }

        .feature-card {
            background: var(--bg-1);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .feature-card:hover {
            border-color: rgba(12, 245, 156, 0.4);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .feature-image {
            border-radius: 0;
            height: 100%;
            min-height: 260px;
            background-size: cover;
            background-position: center;
            background-image: url('/assets/images/backpic/back-2.png');
            position: relative;
        }

        .feature-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 13, 18, 0.4), transparent 60%);
        }

        .feature-content {
            padding: 32px 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }

        .feature-content .tag-badge {
            display: inline-flex;
            align-self: flex-start;
            background: var(--primary-dim);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 18px;
        }

        .feature-content h2 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
            color: var(--text-1);
        }

        .feature-content p {
            font-size: 15px;
            color: var(--text-2);
            line-height: 1.85;
            margin-bottom: 22px;
        }

        /* ===== Section title ===== */
        .section-block {
            padding: 72px 0;
        }

        .section-block-alt {
            background: var(--bg-1);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-title-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title-left .bar {
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 0;
            color: var(--text-1);
        }

        .section-head .sub {
            font-size: 14px;
            color: var(--text-2);
            margin-top: 6px;
        }

        .section-head .more-link {
            font-size: 14px;
            color: var(--text-2);
            white-space: nowrap;
        }

        .section-head .more-link:hover {
            color: var(--primary);
        }

        /* ===== Tag pills ===== */
        .tag-pills-row {
            margin-bottom: 12px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 8px;
            border: 1px solid var(--line);
            color: var(--text-2);
            background: transparent;
            font-size: 14px;
            font-weight: 500;
            transition: border-color var(--transition), color var(--transition), background var(--transition);
            margin-right: 12px;
            margin-bottom: 12px;
            cursor: pointer;
        }

        .tag-pill:hover,
        .tag-pill.active {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-dim);
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 48px 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            background: var(--bg-0);
        }

        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
        }

        .stat-item {
            flex: 1 1 200px;
            text-align: center;
            padding: 20px 24px;
            position: relative;
        }

        .stat-item+.stat-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 44px;
            background: var(--line);
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.04em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-3);
            margin-top: 6px;
        }

        /* ===== Content cards (2x2) ===== */
        .content-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .content-card-item {
            background: var(--bg-1);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .content-card-item:hover {
            border-color: rgba(12, 245, 156, 0.4);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .content-card-item .card-image {
            aspect-ratio: 16 / 9;
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 180px;
        }

        .content-card-item .card-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10, 13, 18, 0.5));
        }

        .content-card-item .card-body {
            padding: 24px 28px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .content-card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .content-card-item .cat-badge {
            background: var(--primary-dim);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }

        .content-card-item .card-date {
            font-family: var(--font-number);
            font-size: 13px;
            color: var(--text-3);
            letter-spacing: 0.04em;
        }

        .content-card-item .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-1);
            margin-bottom: 10px;
            transition: color var(--transition);
        }

        .content-card-item .card-title:hover {
            color: var(--primary);
        }

        .content-card-item .card-desc {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .content-card-item .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .content-card-item .card-link:hover {
            color: #35ffb3;
            text-decoration: underline;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 72px 0 88px;
        }

        .faq-container {
            max-width: 840px;
            margin: 0 auto;
            border-top: 1px solid var(--line);
        }

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

        .faq-item.active {
            border-left: 2px solid var(--primary);
        }

        .faq-question {
            padding: 24px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-1);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--line);
            transition: transform 250ms ease, border-color var(--transition), background var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 250ms ease;
        }

        .faq-answer-inner {
            padding: 0 16px 24px;
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.85;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 96px 0 104px;
            background: radial-gradient(700px 300px at 50% 100%, var(--primary-dim), transparent 70%), var(--bg-0);
            border-top: 1px solid var(--line);
        }

        .cta-content {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 15px;
            color: var(--text-2);
            margin-bottom: 32px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-1);
            border-top: 1px solid var(--line);
            padding-top: 64px;
            padding-bottom: 0;
        }

        .footer-grid {
            row-gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 14px;
        }

        .footer-brand .logo strong {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            max-width: 420px;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-2);
        }

        .footer-col ul li a {
            color: var(--text-2);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-disclaimer {
            border-top: 1px solid var(--line);
            padding: 20px 0;
            font-size: 12px;
            color: var(--text-3);
            text-align: center;
            line-height: 1.7;
        }

        .footer-copyright {
            border-top: 1px solid var(--line);
            padding: 16px 0 20px;
            font-size: 13px;
            color: var(--text-3);
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 960px;
            }

            .page-hero {
                padding: 80px 0 56px;
            }

            .feature-image {
                min-height: 220px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 72px;
            }

            .navbar-collapse {
                background: var(--bg-1);
                border: 1px solid var(--line);
                border-radius: 12px;
                margin-top: 12px;
                padding: 16px;
                box-shadow: var(--shadow);
            }

            .navbar-nav {
                gap: 4px;
            }

            .nav-item .nav-link {
                padding: 12px 8px;
                border-bottom: 1px solid var(--line);
            }

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

            .nav-item .nav-link.active {
                color: var(--primary);
                background: var(--primary-dim);
                border-radius: 6px;
                padding-left: 12px;
            }

            .nav-item.nav-cta {
                padding-top: 14px;
                border-top: 1px solid var(--line);
                margin-top: 8px;
            }

            .nav-item.nav-cta .btn-primary-custom {
                width: 100%;
            }

            .page-hero {
                padding: 64px 0 48px;
            }

            .feature-content {
                padding: 28px;
            }

            .stats-section {
                padding: 36px 0;
            }

            .stat-item {
                flex: 1 1 50%;
            }

            .stat-item+.stat-item::before {
                display: none;
            }

            .stat-item:nth-child(even)::before {
                display: none;
            }

            .content-cards-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .section-block {
                padding: 56px 0;
            }

            .faq-section {
                padding: 56px 0 72px;
            }

            .cta-section {
                padding: 72px 0 80px;
            }
        }

        @media (max-width: 575.98px) {
            body {
                font-size: 15px;
            }

            .navbar-brand {
                font-size: 17px;
                gap: 8px;
            }

            .page-hero {
                padding: 48px 0 40px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .hero-line {
                margin: 16px 0;
            }

            .feature-content {
                padding: 24px 20px;
            }

            .feature-content h2 {
                font-size: 22px;
            }

            .section-head {
                margin-bottom: 28px;
                align-items: flex-start;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .section-head .sub {
                font-size: 13px;
            }

            .tag-pill {
                padding: 7px 14px;
                font-size: 13px;
                margin-right: 8px;
                margin-bottom: 8px;
            }

            .stats-row {
                flex-direction: column;
                gap: 0;
            }

            .stat-item {
                flex: 1 1 100%;
                padding: 18px 16px;
                border-bottom: 1px solid var(--line);
            }

            .stat-item:last-child {
                border-bottom: none;
            }

            .stat-number {
                font-size: 34px;
            }

            .content-card-item .card-body {
                padding: 20px;
            }

            .content-card-item .card-title {
                font-size: 17px;
            }

            .faq-question {
                font-size: 15px;
                padding: 20px 12px;
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

            .cta-buttons .btn-primary-custom,
            .cta-buttons .btn-outline-custom {
                width: 100%;
            }

            .footer-grid {
                row-gap: 28px;
            }
        }

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

/* roulang page: article */
:root {
    --bg-0: #0A0D12;
    --bg-1: #11161D;
    --bg-2: #1A212B;
    --line: #222B36;
    --primary: #0CF59C;
    --primary-dim: rgba(12, 245, 156, 0.1);
    --gold: #F2B544;
    --text-1: #EDF2F7;
    --text-2: #96A4B4;
    --text-3: #5E6C7B;
    --danger: #FF5D73;
    --radius: 12px;
    --radius-sm: 6px;
    --shadow: 0 8px 30px rgba(0,0,0,0.35);
    --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-num: "DIN Alternate", "Bahnschrift", sans-serif;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-sans);
    background: var(--bg-0);
    color: var(--text-1);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color .18s ease;
}
a:hover {
    color: var(--primary);
}
img {
    max-width: 100%;
    height: auto;
}
.container {
    max-width: 1140px;
}
a:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
    background: rgba(10, 13, 18, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom-color: var(--line);
    box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.site-header .navbar {
    min-height: 84px;
    padding: 0;
}
.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 800;
    color: var(--text-1);
    letter-spacing: -0.01em;
    line-height: 1.2;
}
.navbar-brand .logo-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-dim);
    border-radius: 8px;
    flex-shrink: 0;
}
.navbar-brand strong {
    color: var(--text-1);
}
.logo-dot {
    color: var(--primary);
}
.navbar-nav {
    gap: 36px;
}
.navbar-nav .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-2);
    padding: 10px 0;
    position: relative;
    background: transparent;
    border: 0;
    transition: color .18s ease;
}
.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 4px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width .22s ease;
}
.navbar-nav .nav-link:hover {
    color: var(--text-1);
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
}
.navbar-nav .nav-link.active {
    color: var(--primary);
}
.navbar-toggler {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    background: transparent;
}
.navbar-toggler:focus {
    box-shadow: none;
    border-color: var(--primary);
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2396A4B4' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Buttons ===== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 15px;
    height: 44px;
    padding: 0 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all .18s ease;
    border: 1px solid transparent;
}
.btn-primary-custom {
    background: var(--primary);
    color: #08120C;
    border-color: var(--primary);
}
.btn-primary-custom:hover {
    background: #20ffad;
    color: #08120C;
    box-shadow: 0 4px 20px rgba(12,245,156,.25);
    transform: translateY(-1px);
}
.btn-primary-custom:active {
    transform: translateY(1px);
}
.btn-outline-custom {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-custom:hover {
    background: var(--primary-dim);
    color: var(--primary);
}

/* ===== Article Main ===== */
.article-main {
    padding: 150px 0 100px;
    min-height: 80vh;
}
.breadcrumb-custom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-3);
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}
.breadcrumb-custom a {
    color: var(--text-3);
    transition: color .18s ease;
}
.breadcrumb-custom a:hover {
    color: var(--primary);
}
.breadcrumb-custom .current {
    color: var(--text-2);
    max-width: 320px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.article-detail {
    max-width: 960px;
    margin: 0 auto;
}
.article-header h1 {
    font-size: clamp(32px, 4vw, 40px);
    font-weight: 800;
    line-height: 1.35;
    color: var(--text-1);
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    word-break: break-word;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    padding-bottom: 28px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
    color: var(--text-3);
}
.article-meta .meta-date {
    font-family: var(--font-num);
    letter-spacing: 0.04em;
    color: var(--text-3);
}
.badge-category {
    display: inline-block;
    background: var(--primary-dim);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    padding: 3px 10px;
}
.article-meta .meta-read {
    color: var(--text-3);
    font-family: var(--font-num);
}

/* ===== Article Content ===== */
.article-content {
    font-size: 17px;
    line-height: 1.9;
    color: var(--text-2);
}
.article-content p {
    margin-bottom: 24px;
}
.article-content h2,
.article-content h3 {
    color: var(--text-1);
    font-weight: 700;
    line-height: 1.4;
    margin-top: 40px;
    margin-bottom: 16px;
}
.article-content h2 {
    font-size: 26px;
}
.article-content h3 {
    font-size: 22px;
}
.article-content img {
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    margin: 28px 0;
}
.article-content blockquote {
    border-left: 3px solid var(--primary);
    background: var(--primary-dim);
    color: var(--text-2);
    font-style: italic;
    padding: 16px 24px;
    margin: 28px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-content ul,
.article-content ol {
    margin: 0 0 24px 0;
    padding-left: 24px;
}
.article-content li {
    margin-bottom: 8px;
}
.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    display: block;
    overflow-x: auto;
}
.article-content table th,
.article-content table td {
    border: 1px solid var(--line);
    padding: 10px 14px;
    font-size: 15px;
}
.article-content code {
    background: var(--bg-2);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 14px;
    color: var(--primary);
}

/* ===== Article Bottom Nav ===== */
.article-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--line);
    font-size: 14px;
}
.article-nav a {
    color: var(--text-2);
    transition: color .18s ease;
}
.article-nav a:hover {
    color: var(--primary);
}
.article-nav .nav-pager {
    display: flex;
    align-items: center;
    gap: 12px;
}
.article-nav .nav-pager .divider {
    color: var(--text-3);
}

/* ===== Related ===== */
.related-section {
    max-width: 960px;
    margin: 48px auto 0;
    padding-top: 40px;
    border-top: 1px solid var(--line);
}
.related-section h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 24px;
}
.related-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.related-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-1);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px;
    transition: all .18s ease;
}
.related-item:hover {
    border-color: rgba(12,245,156,0.4);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.related-item img {
    width: 120px;
    height: 72px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
    border: 1px solid var(--line);
}
.related-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}
.related-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
    line-height: 1.4;
    transition: color .18s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.related-item:hover .related-title {
    color: var(--primary);
}
.related-date {
    font-size: 13px;
    color: var(--text-3);
    font-family: var(--font-num);
}

/* ===== Not Found ===== */
.article-not-found {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    padding: 100px 20px;
    border: 1px dashed var(--line);
    border-radius: var(--radius);
}
.not-found-icon {
    margin-bottom: 24px;
}
.article-not-found h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 16px;
}
.article-not-found p {
    color: var(--text-2);
    font-size: 15px;
    margin-bottom: 28px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-1);
    border-top: 1px solid var(--line);
    padding: 64px 0 28px;
    margin-top: 80px;
}
.footer-grid {
    row-gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 16px;
}
.footer-brand p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.8;
    max-width: 380px;
}
.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 18px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-2);
}
.footer-col ul a {
    color: var(--text-2);
    transition: color .18s ease;
}
.footer-col ul a:hover {
    color: var(--primary);
}
.footer-disclaimer {
    font-size: 12px;
    color: var(--text-3);
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid var(--line);
    line-height: 1.8;
}
.footer-copyright {
    font-size: 13px;
    color: var(--text-3);
    text-align: center;
    padding-top: 16px;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--bg-1);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        padding: 20px;
        margin-top: 12px;
    }
    .navbar-nav {
        gap: 0;
    }
    .navbar-nav .nav-link {
        padding: 14px 0;
        border-bottom: 1px solid var(--line);
    }
    .navbar-nav .nav-link::after {
        display: none;
    }
    .navbar-nav .nav-item:last-child .nav-link {
        border-bottom: none;
    }
    .navbar-nav .nav-cta {
        padding-top: 16px;
    }
    .navbar-nav .nav-cta .btn {
        width: 100%;
    }
    .article-main {
        padding: 130px 0 64px;
    }
}
@media (max-width: 767.98px) {
    .article-main {
        padding: 120px 0 56px;
    }
    .breadcrumb-custom {
        margin-bottom: 28px;
    }
    .related-item img {
        width: 100px;
        height: 64px;
    }
}
@media (max-width: 575.98px) {
    .article-main {
        padding: 110px 0 48px;
    }
    .article-content {
        font-size: 16px;
        line-height: 1.8;
    }
    .article-nav {
        flex-direction: column;
        align-items: flex-start;
    }
    .article-meta {
        gap: 12px;
    }
    .related-item {
        width: 100%;
    }
    .related-item img {
        width: 90px;
        height: 60px;
    }
    .related-title {
        font-size: 15px;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .footer-brand p {
        max-width: 100%;
    }
    .footer-grid {
        text-align: left;
    }
}