/* roulang page: index */
:root {
            --brand: #1d4c77;
            --brand-dark: #163a5e;
            --accent: #0f8a7d;
            --accent-dark: #0b6d64;
            --bg-soft: #f5f8fc;
            --body: #1f2e3d;
            --muted: #5b6b7d;
            --border: #e3eaf1;
            --shadow-sm: 0 2px 12px rgba(21, 64, 103, .06), 0 1px 2px rgba(21, 64, 103, .04);
            --shadow-md: 0 12px 28px rgba(21, 64, 103, .10);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --font-sans: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --section-pad: 96px;
            --header-h: 72px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--body);
            background: #fff;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.35;
            color: var(--body);
            margin: 0 0 .35em;
        }
        p {
            margin-bottom: 1rem;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1280px;
            padding-left: 40px;
            padding-right: 40px;
        }
        section {
            padding-block: var(--section-pad);
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 600;
            margin-bottom: .3em;
            color: var(--body);
        }
        .section-sub {
            color: var(--muted);
            font-size: 1.05rem;
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .visual-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 138, 125, .1);
            color: var(--accent-dark);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            font-size: .8125rem;
            font-weight: 500;
            letter-spacing: .2px;
        }
        .btn {
            border-radius: var(--radius-pill);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            transition: all .3s ease;
            border: 1px solid transparent;
            line-height: 1.5;
            font-size: .95rem;
        }
        .btn-primary-custom {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            box-shadow: 0 4px 14px rgba(29, 76, 119, .18);
        }
        .btn-primary-custom:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(29, 76, 119, .22);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(29, 76, 119, .12);
        }
        .btn-ghost-custom {
            background: #fff;
            border-color: #b8c7d6;
            color: var(--body);
        }
        .btn-ghost-custom:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(29, 76, 119, .08);
        }
        .btn-accent-custom {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 6px 18px rgba(15, 138, 125, .20);
        }
        .btn-accent-custom:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(15, 138, 125, .22);
        }
        .btn-link-custom {
            background: transparent;
            padding: 8px 2px;
            color: var(--brand);
            border: none;
            font-weight: 600;
            gap: 4px;
        }
        .btn-link-custom:hover {
            color: var(--accent);
            background: transparent;
        }
        .btn-link-custom .icon-arrow {
            transition: transform .3s ease;
        }
        .btn-link-custom:hover .icon-arrow {
            transform: translateX(4px);
        }
        .btn:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(15, 138, 125, .45);
            outline-offset: 2px;
        }

        /* Header & Nav */
        .top-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: var(--accent);
            z-index: 1080;
            transition: width .1s linear;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            min-height: var(--header-h);
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid transparent;
            transition: box-shadow .3s ease, border-color .3s ease;
        }
        .site-header.is-scrolled {
            box-shadow: 0 4px 20px rgba(21, 64, 103, .04);
            border-bottom-color: var(--border);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--body);
            font-size: 1.16rem;
            white-space: nowrap;
            padding: 0;
            margin-right: 24px;
        }
        .navbar-brand:hover {
            color: var(--body);
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(29, 76, 119, .15);
        }
        .brand-mark::after {
            content: "";
            position: absolute;
            right: 7px;
            top: 7px;
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 2px;
            transform: rotate(45deg);
        }
        .navbar-nav .nav-link {
            color: #41576c;
            font-size: .95rem;
            font-weight: 500;
            padding: 8px 12px;
            margin: 0 6px;
            position: relative;
            white-space: nowrap;
            transition: color .25s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand);
        }
        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-soft);
            border: 1px solid transparent;
            border-radius: var(--radius-pill);
            height: 36px;
            padding: 0 12px;
            width: 180px;
            transition: all .3s ease;
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: .84rem;
            color: var(--body);
            width: 100%;
            padding-left: 6px;
        }
        .header-search input::placeholder {
            color: #8ea0b0;
        }
        .header-search:focus-within {
            border-color: var(--accent);
            background: #fff;
        }
        .nav-btn-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-soft);
            color: var(--body);
            border: 1px solid transparent;
            transition: all .25s ease;
        }
        .nav-btn-icon:hover {
            background: #e8eef5;
            color: var(--brand);
            border-color: var(--border);
        }
        .btn-nav-ghost {
            background: transparent;
            border: 1px solid var(--brand);
            color: var(--brand);
            font-size: .88rem;
            font-weight: 600;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: all .25s ease;
        }
        .btn-nav-ghost:hover {
            background: rgba(29, 76, 119, .06);
            color: var(--brand-dark);
        }
        .btn-nav-solid {
            background: var(--brand);
            color: #fff;
            font-size: .88rem;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--brand);
            min-width: 118px;
            white-space: nowrap;
            transition: all .25s ease;
            box-shadow: 0 4px 12px rgba(29, 76, 119, .15);
        }
        .btn-nav-solid:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
        }
        .navbar-toggler {
            border: none;
            box-shadow: none;
            padding: 4px 8px;
            display: inline-flex;
            flex-direction: column;
            gap: 4px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--body);
            border-radius: 2px;
        }
        .header-search-mobile {
            display: none;
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 0;
            background: linear-gradient(180deg, #fbfcfe 0%, #fff 100%);
            overflow: hidden;
        }
        .hero .container {
            padding-top: 88px;
            padding-bottom: 96px;
        }
        .hero-copy {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(15, 138, 125, .09);
            color: var(--accent-dark);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
            font-size: .82rem;
            font-weight: 500;
            margin-bottom: 22px;
        }
        .hero-badge svg {
            width: 14px;
            height: 14px;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.25rem);
            line-height: 1.25;
            font-weight: 650;
            margin-bottom: 18px;
            color: var(--body);
            letter-spacing: -0.5px;
        }
        .hero h1 .hl {
            color: var(--brand);
            position: relative;
            white-space: nowrap;
        }
        .hero h1 .hl::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 4px;
            height: 10px;
            background: rgba(15, 138, 125, .15);
            border-radius: 4px;
            z-index: -1;
        }
        .hero-lead {
            color: var(--muted);
            font-size: 1.125rem;
            line-height: 1.85;
            max-width: 560px;
            margin-bottom: 30px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-note {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            color: var(--muted);
            font-size: .875rem;
        }
        .hero-note .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }
        .hero-visual {
            position: relative;
            z-index: 1;
        }
        .hero-stage {
            position: relative;
            aspect-ratio: 4 / 3;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--brand-dark);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: flex-end;
            isolation: isolate;
        }
        .hero-stage img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -2;
        }
        .hero-stage::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(130deg, rgba(29, 76, 119, .35) 0%, rgba(22, 58, 94, .1) 45%, rgba(15, 138, 125, .3) 100%);
            z-index: -1;
        }
        .hero-stage::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, .2) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .2) 1px, transparent 1px);
            background-size: 32px 32px;
            opacity: .35;
            z-index: 0;
        }
        .hero-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 3;
            background: rgba(255, 255, 255, .92);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            font-size: .82rem;
            font-weight: 600;
            color: var(--brand);
            box-shadow: var(--shadow-sm);
        }
        .hero-tag.green {
            color: var(--accent-dark);
            top: auto;
            left: auto;
            right: 16px;
            bottom: 58px;
        }
        .hero-stage-caption {
            position: relative;
            z-index: 2;
            margin: 16px;
            background: rgba(255, 255, 255, .9);
            border-radius: 12px;
            padding: 14px 16px;
            width: calc(100% - 32px);
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .hero-stage-caption strong {
            font-size: 1rem;
            color: var(--body);
        }
        .hero-stage-caption p {
            margin: 2px 0 0;
            font-size: .84rem;
            color: var(--muted);
        }

        /* Info strip / quick cards */
        .quick-panel {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px 30px;
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .quick-panel:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .quick-panel .icon-rounded {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #eaf1f7;
            color: var(--brand);
            margin-bottom: 14px;
        }
        .quick-panel h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .quick-panel p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 12px;
        }
        .quick-panel .more-link {
            font-size: .85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Steps block */
        .steps-section {
            background: var(--bg-soft);
            position: relative;
        }
        .step-card {
            position: relative;
            text-align: center;
            padding: 28px 18px;
            height: 100%;
        }
        .step-card .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 1rem;
            margin: 0 auto 18px;
            box-shadow: 0 4px 12px rgba(29, 76, 119, .18);
        }
        .step-card .step-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #dce8ef;
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .step-card h3 {
            font-size: 1.08rem;
            margin-bottom: 10px;
        }
        .step-card p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
            line-height: 1.8;
        }
        .step-card .divider-line {
            position: absolute;
            top: 50%;
            right: -8px;
            width: 16px;
            height: 1px;
            background: #ccd9e5;
            transform: translateY(-50%);
            display: none;
        }
        @media (min-width: 992px) {
            .step-card .divider-line {
                display: block;
            }
        }
        .step-card .divider-line::after {
            content: "";
            position: absolute;
            right: 0;
            top: -2px;
            width: 5px;
            height: 5px;
            border-top: 1px solid #ccd9e5;
            border-right: 1px solid #ccd9e5;
            transform: rotate(45deg);
        }

        /* Scene cards */
        .scene-main {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .scene-main:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .scene-main .cover-wrap {
            aspect-ratio: 3 / 2;
            overflow: hidden;
        }
        .scene-main .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .scene-main:hover .cover-wrap img {
            transform: scale(1.04);
        }
        .scene-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .scene-body .tag-list {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .scene-body .tag {
            font-size: .76rem;
            background: #edf3f8;
            color: var(--brand);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            font-weight: 500;
        }
        .scene-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .scene-body p {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .scene-body .scene-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--muted);
            font-size: .82rem;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .scene-meta .coord {
            letter-spacing: 1px;
            color: #9db2c3;
            font-weight: 600;
        }
        .scene-sm {
            display: flex;
            gap: 14px;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: #fff;
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: all .3s ease;
            align-items: center;
        }
        .scene-sm:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .scene-sm .cover-thumb {
            width: 118px;
            height: 92px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .scene-sm .cover-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-sm h3 {
            font-size: .95rem;
            margin-bottom: 4px;
        }
        .scene-sm p {
            font-size: .82rem;
            color: var(--muted);
            margin-bottom: 6px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .scene-sm .more {
            font-size: .8rem;
            font-weight: 600;
            color: var(--accent-dark);
        }

        /* News / CMS area */
        .news-section {
            background: #fff;
        }
        .news-card-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .news-row {
            display: grid;
            grid-template-columns: 120px 260px 1fr auto;
            gap: 18px;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 20px;
            transition: all .3s ease;
            color: var(--body);
        }
        .news-row:hover {
            box-shadow: var(--shadow-md);
            color: var(--body);
            transform: translateY(-2px);
            border-color: #cbdeeb;
        }
        .news-cat {
            font-size: .8rem;
            background: var(--bg-soft);
            color: var(--brand);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            display: inline-flex;
            justify-self: start;
            font-weight: 500;
            white-space: nowrap;
        }
        .news-title {
            font-weight: 600;
            color: var(--body);
            font-size: .98rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-desc {
            color: var(--muted);
            font-size: .88rem;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-date {
            color: #8aa0b4;
            font-size: .82rem;
            white-space: nowrap;
        }
        .news-empty {
            grid-column: 1 / -1;
            background: var(--bg-soft);
            border-radius: var(--radius);
            padding: 40px 20px;
            text-align: center;
            color: var(--muted);
            border: 1px dashed #c8d5e0;
        }
        .news-empty svg {
            width: 38px;
            height: 38px;
            color: #99adbe;
            margin-bottom: 12px;
        }
        .news-aside-card {
            background: var(--bg-soft);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px;
            height: 100%;
        }
        .news-aside-card h3 {
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .news-aside-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-aside-list li {
            margin-bottom: 12px;
            padding-left: 16px;
            position: relative;
        }
        .news-aside-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.65em;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .news-aside-list a {
            color: var(--muted);
            font-size: .9rem;
            transition: color .2s ease;
        }
        .news-aside-list a:hover {
            color: var(--brand);
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-soft);
        }
        .faq-panel {
            max-width: 960px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .3s ease;
        }
        .faq-item.expanded {
            border-left: 3px solid var(--accent);
            border-color: #cbe2de;
        }
        .faq-item .faq-question {
            width: 100%;
            background: #fff;
            border: none;
            text-align: left;
            padding: 18px 24px;
            font-size: .98rem;
            font-weight: 600;
            color: var(--body);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: background .3s ease;
        }
        .faq-item .faq-question:hover {
            background: #fafcfe;
        }
        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #edf3f8;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            transition: all .3s ease;
        }
        .faq-item.expanded .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--muted);
            font-size: .92rem;
            line-height: 1.8;
        }

        /* Bottom CTA */
        .bottom-cta-section {
            padding-bottom: 96px;
        }
        .cta-shell {
            background: var(--bg-soft);
            border-radius: 32px;
            padding: 30px;
            border: 1px solid var(--border);
        }
        .cta-card {
            background: #fff;
            border-radius: 24px;
            padding: 48px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cta-card h2 {
            font-size: 1.6rem;
            margin-bottom: 8px;
        }
        .cta-card p {
            color: var(--muted);
            margin-bottom: 0;
            font-size: .96rem;
        }
        .cta-card .btn-accent-custom {
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #f8fafc;
            border-top: 1px solid var(--border);
            padding-top: 64px;
            padding-bottom: 32px;
        }
        .footer-brand-block .navbar-brand {
            font-size: 1.15rem;
            margin-bottom: 12px;
        }
        .footer-brand-block p {
            color: var(--muted);
            font-size: .88rem;
            max-width: 330px;
            line-height: 1.8;
        }
        .footer-title {
            font-size: .82rem;
            font-weight: 600;
            color: var(--body);
            letter-spacing: .04em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-link-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-link-list li {
            margin-bottom: 10px;
        }
        .footer-link-list a {
            color: var(--muted);
            font-size: .9rem;
            transition: color .25s ease;
        }
        .footer-link-list a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 48px;
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            color: #8b9cab;
            font-size: .82rem;
        }

        @media (max-width: 1199.98px) {
            .container {
                padding-left: 28px;
                padding-right: 28px;
            }
            .navbar-nav .nav-link {
                margin: 0 3px;
                padding: 8px 10px;
                font-size: .9rem;
            }
            .header-search {
                width: 145px;
            }
        }
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: #fff;
                padding: 18px 0 22px;
                border-radius: 0 0 16px 16px;
                box-shadow: 0 16px 24px rgba(21, 64, 103, .05);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link {
                padding: 12px 6px;
                margin: 0;
                border-bottom: 1px solid #eef3f7;
                font-size: .96rem;
            }
            .header-actions {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
                justify-content: flex-start;
                flex-wrap: wrap;
            }
            .header-search {
                flex: 1;
                min-width: 180px;
                max-width: 260px;
            }
            .btn-nav-solid {
                min-width: 130px;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-pad: 64px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            body {
                font-size: 15px;
            }
            .section-sub {
                font-size: .95rem;
            }
            .hero .container {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .hero-copy {
                order: 1;
            }
            .hero-visual {
                order: 2;
                margin-top: 32px;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .news-row {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 18px;
            }
            .news-cat {
                justify-self: start;
            }
            .news-title,
            .news-desc {
                white-space: normal;
            }
            .news-date {
                font-size: .78rem;
            }
            .cta-shell {
                padding: 16px;
            }
            .cta-card {
                padding: 30px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card .btn {
                width: 100%;
            }
            .site-footer {
                padding-top: 44px;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: flex-start;
            }
        }
        @media (max-width: 520.98px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .navbar-brand {
                font-size: 1rem;
                margin-right: 8px;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: .96rem;
            }
            .brand-mark::after {
                right: 5px;
                top: 5px;
                width: 6px;
                height: 6px;
            }
            .header-search {
                display: none;
            }
            .header-search-mobile {
                display: flex;
                background: var(--bg-soft);
                border: 1px solid var(--border);
                padding: 8px 12px;
                border-radius: var(--radius);
                margin: 12px 6px 4px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1d4c77;
            --primary-dark: #163a5e;
            --accent: #0f8a7d;
            --bg-soft: #f5f8fc;
            --text: #1f2e3d;
            --muted: #5b6b7d;
            --line: #e3eaf1;
            --radius: 14px;
            --radius-md: 8px;
            --radius-pill: 999px;
            --shadow: 0 2px 12px rgba(21, 64, 103, .06), 0 1px 2px rgba(21, 64, 103, .04);
            --shadow-hover: 0 12px 28px rgba(21, 64, 103, .10);
            --transition: all .3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        * {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1280px;
            padding-left: 40px;
            padding-right: 40px;
        }
        @media (max-width: 1199.98px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ---------- Header ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            height: 72px;
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 0 rgba(21, 64, 103, .02);
        }
        .site-header .navbar {
            padding: 0;
            min-height: 72px;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--primary) !important;
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: .01em;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 12px 8px 12px 8px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            line-height: 1;
            box-shadow: 0 6px 14px rgba(29, 76, 119, .18);
            transform: skewY(-4deg);
        }
        .navbar-nav .nav-link {
            color: var(--text);
            font-weight: 500;
            font-size: 16px;
            padding: 26px 4px 24px !important;
            margin: 0 18px;
            position: relative;
            white-space: nowrap;
            background: none;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 14px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 14px;
        }
        .header-search {
            height: 38px;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: var(--radius-pill);
            padding: 0 15px;
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 215px;
        }
        .header-search input {
            border: 0;
            background: transparent;
            outline: none;
            font-size: .875rem;
            color: var(--text);
            width: 100%;
        }
        .header-search input::placeholder {
            color: #8a99a8;
        }
        .header-search:focus-within {
            border-color: rgba(29, 76, 119, .35);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(29, 76, 119, .08);
        }
        .header-search-mobile {
            display: none;
        }
        .header-login {
            color: var(--text);
            font-size: .9375rem;
            font-weight: 500;
            padding: 8px 16px;
            border: 1px solid var(--line);
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .header-login:hover {
            border-color: rgba(29, 76, 119, .3);
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary) !important;
            border: 1px solid var(--primary) !important;
            color: #fff !important;
            font-weight: 500;
            font-size: .9375rem;
            min-width: 118px;
            height: 42px;
            border-radius: var(--radius-pill) !important;
            padding: 0 22px;
            box-shadow: 0 8px 20px rgba(29, 76, 119, .20);
            transition: var(--transition);
        }
        .header-cta:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(29, 76, 119, .24);
        }
        .header-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .navbar-toggler {
            border: 0;
            padding: 8px 6px;
            width: 44px;
            height: 40px;
            box-shadow: none !important;
            outline: none;
        }
        .navbar-toggler span {
            display: block;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            margin: 5px auto;
            transition: var(--transition);
        }
        .navbar-toggler:not(.collapsed) span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler:not(.collapsed) span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler:not(.collapsed) span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        body {
            padding-top: 72px;
        }
        @media (max-width: 991.98px) {
            .navbar-collapse {
                position: absolute;
                top: 71px;
                left: 16px;
                right: 16px;
                background: #fff;
                border: 1px solid var(--line);
                border-radius: var(--radius);
                box-shadow: var(--shadow-hover);
                padding: 18px 20px 24px;
            }
            .navbar-nav {
                margin: 0 auto 16px !important;
                padding: 0;
                width: 100%;
            }
            .navbar-nav .nav-link {
                display: inline-block;
                padding: 8px 0 !important;
                margin: 0 6px 0 0;
                font-size: 1rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                background: linear-gradient(135deg, rgba(29, 76, 119, .08), rgba(15, 138, 125, .05));
                border-radius: 8px;
                padding: 8px 14px !important;
                margin-left: -14px;
            }
            .header-actions {
                margin: 0;
                flex-wrap: wrap;
                gap: 10px;
            }
            .header-search.desktop-search {
                display: none;
            }
            .header-actions .header-login,
            .header-actions .header-cta {
                flex: 1;
                text-align: center;
            }
            .header-search-mobile {
                display: flex;
                width: 100%;
                background: var(--bg-soft);
                border: 1px solid var(--line);
                border-radius: var(--radius-pill);
                height: 42px;
                align-items: center;
                padding: 0 16px;
                gap: 8px;
                margin-top: 6px;
            }
            .header-search-mobile input {
                border: 0;
                background: transparent;
                width: 100%;
                outline: none;
                color: var(--text);
            }
        }

        /* ---------- Page hero ---------- */
        .page-hero {
            background: linear-gradient(180deg, var(--bg-soft) 0%, #fff 100%);
            border-bottom: 1px solid var(--line);
            padding: 64px 0 48px;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .875rem;
            color: var(--muted);
            margin: 0 0 28px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .breadcrumb-nav .sep {
            color: #b9c4cf;
        }
        .page-hero .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: rgba(29, 76, 119, .07);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 18px;
        }
        .page-hero h1 {
            font-size: clamp(2.1rem, 4vw, 3.1rem);
            line-height: 1.25;
            font-weight: 650;
            color: var(--text);
            margin: 0 0 20px;
            max-width: 840px;
            letter-spacing: -.01em;
        }
        .page-hero .hero-intro {
            font-size: 1.12rem;
            line-height: 1.85;
            color: #3c4d5e;
            max-width: 840px;
            margin: 0;
        }
        .page-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            margin-top: 26px;
            color: var(--muted);
            font-size: .9375rem;
        }
        .page-hero-meta i {
            font-style: normal;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .page-hero-meta svg {
            flex: 0 0 auto;
        }

        /* ---------- Section common ---------- */
        .section {
            padding: 88px 0;
        }
        .section-soft {
            background: var(--bg-soft);
        }
        .section-head {
            max-width: 780px;
            margin: 0 0 46px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-head .tagline {
            display: inline-block;
            color: var(--accent);
            font-weight: 600;
            font-size: .875rem;
            margin-bottom: 8px;
        }
        .section-head h2 {
            font-size: clamp(1.65rem, 2.6vw, 2.05rem);
            font-weight: 600;
            line-height: 1.35;
            color: var(--text);
            margin: 0 0 14px;
            letter-spacing: -.01em;
        }
        .section-head p {
            color: var(--muted);
            font-size: 1.0625rem;
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .section {
                padding: 64px 0;
            }
        }
        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }
        }

        /* ---------- Overview split ---------- */
        .split-overview .overview-visual {
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            min-height: 320px;
        }
        .split-overview .overview-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .overview-copy {
            padding: 8px 0 0 30px;
        }
        .overview-copy h2 {
            font-size: 1.8rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .overview-copy p {
            color: var(--muted);
            font-size: 1.05rem;
            margin-bottom: 18px;
        }
        .overview-points {
            list-style: none;
            margin: 20px 0 0;
            padding: 0;
        }
        .overview-points li {
            padding: 12px 0 12px 42px;
            border-top: 1px solid var(--line);
            position: relative;
            color: var(--text);
            font-weight: 500;
            line-height: 1.7;
        }
        .overview-points li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 21px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(15, 138, 125, .1);
        }
        @media (max-width: 991.98px) {
            .overview-copy {
                padding: 24px 0 0;
            }
            .split-overview .overview-visual {
                min-height: 260px;
            }
        }

        /* ---------- Timeline ---------- */
        .timeline-section {
            background: #fff;
        }
        .route-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding-left: 0;
        }
        .route-timeline::before {
            content: "";
            position: absolute;
            left: 30px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary) 0%, rgba(29, 76, 119, .1) 90%);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 46px 84px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item .tl-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: #fff;
            border: 1px solid rgba(29, 76, 119, .16);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            box-shadow: var(--shadow);
            z-index: 1;
        }
        .timeline-item:nth-child(2) .tl-number {
            background: rgba(29, 76, 119, .04);
            color: var(--primary-dark);
        }
        .timeline-item .tl-card {
            background: #fff;
            border: 1px solid var(--line);
            border-left: 3px solid rgba(29, 76, 119, .5);
            border-radius: var(--radius);
            padding: 24px 28px;
            box-shadow: 0 2px 8px rgba(21, 64, 103, .03);
            transition: var(--transition);
        }
        .timeline-item .tl-card:hover {
            box-shadow: var(--shadow);
            border-left-color: var(--primary);
        }
        .tl-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
        }
        .tl-card h3 .hl {
            color: var(--primary);
        }
        .tl-card p {
            margin: 0 0 12px;
            color: var(--muted);
            font-size: 1rem;
            max-width: 760px;
        }
        .tl-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .8125rem;
            color: var(--primary-dark);
            background: rgba(29, 76, 119, .06);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }
        .tl-tag.green {
            background: rgba(15, 138, 125, .08);
            color: #0a6f65;
        }
        @media (max-width: 767.98px) {
            .route-timeline::before {
                left: 22px;
            }
            .timeline-item {
                padding: 0 0 36px 66px;
            }
            .timeline-item .tl-number {
                width: 46px;
                height: 46px;
                font-size: 1rem;
                border-radius: 14px;
            }
            .timeline-item .tl-card {
                padding: 18px 18px 20px;
            }
            .tl-card h3 {
                font-size: 1.1rem;
            }
        }

        /* ---------- Checklist section ---------- */
        .check-section {
            background: var(--bg-soft);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .check-panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 20px;
            height: 100%;
        }
        .check-panel img {
            width: 100%;
            border-radius: 12px;
            object-fit: cover;
            height: 100%;
            min-height: 260px;
            max-height: 560px;
        }
        .check-list-holder {
            padding: 20px 8px 4px 24px;
        }
        .check-list-holder .section-head {
            margin-bottom: 22px;
        }
        .check-list-holder .section-head h2 {
            font-size: 1.55rem;
        }
        .check-list-holder .section-head p {
            font-size: 1rem;
        }
        .check-items {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .check-items li {
            display: flex;
            gap: 12px;
            padding: 13px 0;
            border-bottom: 1px dashed var(--line);
            color: var(--text);
            font-weight: 500;
            font-size: .97rem;
            align-items: flex-start;
        }
        .check-items li:last-child {
            border-bottom: 0;
        }
        .check-items .check-ico {
            width: 22px;
            height: 22px;
            flex: 0 0 22px;
            border-radius: 50%;
            background: rgba(15, 138, 125, .08);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 3px;
        }
        .check-items .check-ico svg {
            width: 12px;
            height: 12px;
        }
        @media (max-width: 991.98px) {
            .check-list-holder {
                padding: 20px 4px 4px;
            }
        }

        /* ---------- Issue double ---------- */
        .issue-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .issue-card {
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 32px 32px 30px;
            background: #fff;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .issue-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(180deg, var(--primary), rgba(29, 76, 119, .2));
            opacity: 0;
            transition: var(--transition);
        }
        .issue-card:hover::before {
            opacity: 1;
        }
        .issue-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .issue-card .issue-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }
        .issue-card .issue-title .issue-num {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(29, 76, 119, .07);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .9rem;
            font-weight: 700;
            flex: 0 0 34px;
        }
        .issue-card p {
            margin: 0 0 14px;
            color: var(--muted);
            font-size: .97rem;
        }
        .issue-card .issue-more {
            font-size: .875rem;
            font-weight: 500;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .issue-card .issue-more svg {
            transition: transform .2s ease;
        }
        .issue-card:hover .issue-more svg {
            transform: translateX(3px);
        }
        @media (max-width: 767.98px) {
            .issue-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .issue-card {
                padding: 22px 20px;
            }
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: #fff;
        }
        .faq-wrap {
            max-width: 920px;
            margin: 0 auto;
        }
        .faq-list .accordion-item {
            border: 1px solid var(--line);
            border-radius: var(--radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 2px 6px rgba(21, 64, 103, .02);
        }
        .faq-list .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 1.05rem;
            font-weight: 600;
            padding: 22px 54px 22px 24px;
            line-height: 1.55;
            border-radius: 0 !important;
            border: 0;
            box-shadow: none;
            position: relative;
        }
        .faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(29, 76, 119, .12);
        }
        .faq-list .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #fff;
            box-shadow: inset 0 -1px 0 var(--line);
        }
        .faq-list .accordion-button::after {
            content: "";
            width: 22px;
            height: 22px;
            background: none;
            position: absolute;
            right: 22px;
            top: 22px;
            border: 2px solid transparent;
            border-radius: 50%;
            box-shadow: inset 0 0 0 2px var(--muted);
            opacity: .8;
        }
        .faq-list .accordion-button::before {
            content: "";
            position: absolute;
            right: 31px;
            top: 31px;
            width: 8px;
            height: 2px;
            background: var(--muted);
            border-radius: 2px;
            z-index: 1;
        }
        .faq-list .accordion-button:not(.collapsed)::after {
            box-shadow: inset 0 0 0 2px var(--primary);
            opacity: 1;
        }
        .faq-list .accordion-button:not(.collapsed)::before {
            background: var(--primary);
        }
        .faq-list .accordion-body {
            padding: 4px 28px 26px 24px;
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.9;
        }
        .faq-note {
            text-align: center;
            color: #8595a5;
            font-size: .9375rem;
            margin-top: 22px;
        }
        @media (max-width: 575.98px) {
            .faq-list .accordion-button {
                padding: 18px 46px 18px 18px;
                font-size: 1rem;
            }
            .faq-list .accordion-body {
                padding: 0 22px 22px 18px;
            }
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(180deg, #fff, var(--bg-soft));
            padding: 32px 0 88px;
        }
        .cta-panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 24px;
            box-shadow: var(--shadow-hover);
            padding: 52px 60px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 38px;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            left: -40px;
            top: -46px;
            width: 170px;
            height: 170px;
            background: radial-gradient(circle, rgba(29, 76, 119, .06), transparent 70%);
            pointer-events: none;
        }
        .cta-panel::after {
            content: "";
            position: absolute;
            right: 70px;
            bottom: -90px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(15, 138, 125, .08), transparent 68%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            font-size: 1.65rem;
            font-weight: 600;
            margin: 0 0 10px;
            color: var(--text);
        }
        .cta-content p {
            margin: 0;
            color: var(--muted);
            font-size: 1rem;
        }
        .cta-btns {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .btn-nord {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            border-radius: var(--radius-pill);
            padding: 0 30px;
            font-size: .95rem;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-nord.btn-solid {
            background: var(--accent) !important;
            color: #fff !important;
            border-color: var(--accent) !important;
            box-shadow: 0 10px 22px rgba(15, 138, 125, .20);
        }
        .btn-nord.btn-solid:hover {
            background: #0a756a !important;
            transform: translateY(-3px);
            box-shadow: 0 14px 26px rgba(15, 138, 125, .26);
        }
        .btn-nord.btn-outline {
            background: #fff;
            border-color: #b8c7d6;
            color: var(--text);
        }
        .btn-nord.btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-nord.btn-primary-nord {
            background: var(--primary) !important;
            color: #fff !important;
            border-color: var(--primary) !important;
            box-shadow: 0 10px 22px rgba(29, 76, 119, .18);
        }
        .btn-nord.btn-primary-nord:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-3px);
        }
        @media (max-width: 767.98px) {
            .cta-section {
                padding: 18px 0 56px;
            }
            .cta-panel {
                padding: 34px 26px;
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                gap: 24px;
            }
            .cta-content h2 {
                font-size: 1.35rem;
            }
            .cta-btns {
                justify-content: center;
            }
            .btn-nord {
                width: 100%;
            }
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #f5f8fc;
            border-top: 1px solid var(--line);
            padding-top: 68px;
        }
        .site-footer .navbar-brand {
            margin-bottom: 18px;
        }
        .footer-brand-block p {
            color: var(--muted);
            font-size: .9375rem;
            max-width: 340px;
            line-height: 1.9;
        }
        .footer-title {
            font-size: .9375rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: .02em;
        }
        .footer-link-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-link-list li {
            margin-bottom: 12px;
        }
        .footer-link-list a {
            color: var(--muted);
            font-size: .9375rem;
            transition: var(--transition);
            display: inline-block;
        }
        .footer-link-list a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(227, 234, 241, .9);
            margin-top: 48px;
            padding: 24px 0 34px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            flex-wrap: wrap;
            color: #8595a5;
            font-size: .875rem;
        }
        @media (max-width: 767.98px) {
            .site-footer {
                padding-top: 48px;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }

        /* ---------- Buttons / misc ---------- */
        .btn-inline-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 500;
        }
        .btn-inline-link svg {
            transition: transform .25s ease;
        }
        .btn-inline-link:hover {
            color: var(--primary);
        }
        .btn-inline-link:hover svg {
            transform: translateX(4px);
        }
        .text-primary-nord {
            color: var(--primary) !important;
        }
        .bg-primary-nord {
            background: var(--primary) !important;
        }

        @media (max-width: 1199.98px) {
            .navbar-nav .nav-link {
                margin: 0 10px;
            }
            .header-search {
                min-width: 150px;
            }
        }
        @media (max-width: 767.98px) {
            .page-hero {
                padding: 40px 0 32px;
            }
            .page-hero h1 {
                font-size: 1.85rem;
            }
            .page-hero .hero-intro {
                font-size: 1rem;
            }
            .section-head {
                margin-bottom: 30px;
            }
            .overview-copy p {
                font-size: .99rem;
            }
        }

/* roulang page: article */
:root {
    --brand: #1d4c77;
    --brand-dark: #163a5e;
    --accent: #0f8a7d;
    --accent-soft: #e7f3f1;
    --page-bg: #ffffff;
    --soft-bg: #f5f8fc;
    --text: #1f2e3d;
    --muted: #5b6b7d;
    --border: #e3eaf1;
    --shadow: rgba(21, 64, 103, 0.08);
    --shadow-hover: rgba(21, 64, 103, 0.12);
    --radius: 14px;
    --radius-round: 999px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--page-bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1280px;
    padding-left: 40px;
    padding-right: 40px;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button,
input {
    font-family: inherit;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    line-height: 1.4;
}

:focus-visible {
    outline: 3px solid rgba(15, 138, 125, 0.3);
    outline-offset: 2px;
    border-radius: 4px;
}

::selection {
    background: rgba(15, 138, 125, 0.16);
    color: var(--brand-dark);
}

/* 按钮系统 */
.btn {
    border-radius: var(--radius-round);
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.6;
    padding: 0.55rem 1.4rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.btn-brand {
    display: inline-block;
    background: var(--brand);
    border-color: var(--brand);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(29, 76, 119, 0.18);
}

.btn-brand:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(29, 76, 119, 0.22);
}

.btn-brand:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(29, 76, 119, 0.16);
}

.btn-header {
    min-width: 122px;
    text-align: center;
}

/* 顶部导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1050;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 4px 18px rgba(21, 64, 103, 0.08);
}

.site-header .navbar {
    min-height: 72px;
    padding-top: 0;
    padding-bottom: 0;
}

.site-header .navbar-brand {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--brand);
    margin-right: 0;
    padding-top: 0;
    padding-bottom: 0;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

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

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #1d4c77, #2a6a93);
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 800;
    line-height: 1;
    transform: skewX(-5deg) rotate(1deg);
    box-shadow: 0 4px 12px rgba(21, 64, 103, 0.24);
    flex-shrink: 0;
}

.site-header .navbar-nav {
    gap: 2px;
}

.site-header .nav-item {
    position: relative;
}

.site-header .nav-link {
    padding: 0.6rem 0.7rem !important;
    margin: 0 0.1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--muted);
    white-space: nowrap;
    transition: color 0.3s ease;
}

.site-header .nav-link:hover {
    color: var(--brand);
}

.site-header .nav-link.active {
    color: var(--brand);
    font-weight: 600;
}

.site-header .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0.7rem;
    right: 0.7rem;
    bottom: 0.25rem;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-search,
.header-search-mobile {
    display: flex;
    align-items: center;
    background: var(--soft-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: all 0.3s ease;
}

.header-search {
    height: 36px;
    min-width: 190px;
    padding: 0 12px 0 14px;
}

.header-search:focus-within {
    background: #ffffff;
    border-color: rgba(15, 138, 125, 0.5);
    box-shadow: 0 0 0 3px rgba(15, 138, 125, 0.12);
    width: 235px;
}

.header-search svg,
.header-search-mobile svg {
    flex-shrink: 0;
}

.header-search input,
.header-search-mobile input {
    width: 100%;
    height: 100%;
    border: 0;
    outline: none;
    background: transparent;
    font-size: 0.8125rem;
    color: var(--text);
    margin-left: 6px;
    min-width: 0;
}

.header-search input::placeholder,
.header-search-mobile input::placeholder {
    color: #8b9aaa;
}

.header-search-mobile {
    display: none;
}

.header-login {
    font-size: 0.875rem;
    color: var(--muted);
    font-weight: 500;
    padding: 0.25rem 0.35rem;
    border-bottom: 1px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
    white-space: nowrap;
}

.header-login:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.navbar-toggler {
    width: 44px;
    height: 44px;
    border: 0;
    padding: 10px;
    background: transparent;
    box-shadow: none !important;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--brand);
    border-radius: 2px;
    margin: 4px auto;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar-toggler[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.navbar-toggler[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* 文章主体 */
.article-main {
    min-height: calc(100vh - 360px);
    background:
        radial-gradient(circle at 10% 0%, rgba(29, 76, 119, 0.04), transparent 300px),
        var(--soft-bg);
    padding: 48px 0 88px;
}

.article-shell {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 2px 20px rgba(21, 64, 103, 0.06), 0 1px 2px rgba(21, 64, 103, 0.04);
    padding: clamp(30px, 5vw, 56px);
    margin-bottom: 0;
}

.article-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--muted);
    margin-bottom: 18px;
}

.article-breadcrumb a {
    color: var(--muted);
    transition: color 0.3s ease;
}

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

.article-breadcrumb .crumb-sep {
    color: #b7c4d0;
}

.article-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-soft);
    border: 1px solid rgba(15, 138, 125, 0.14);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.article-kicker .spot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.article-shell h1 {
    font-size: clamp(1.65rem, 3vw, 2.4rem);
    font-weight: 700;
    line-height: 1.4;
    color: var(--text);
    margin: 0 0 18px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 10px;
    color: var(--muted);
    font-size: 0.8125rem;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.article-meta .meta-item {
    padding-right: 4px;
}

.article-meta .meta-sep {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #b7c4d0;
    display: inline-block;
}

.article-back-link {
    margin-left: auto;
    color: var(--muted);
    font-size: 0.8125rem;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 3px;
    transition: color 0.3s ease;
}

.article-back-link:hover {
    color: var(--accent);
}

.article-body {
    padding: 30px 0 0;
    color: var(--text);
    font-size: 1rem;
    line-height: 1.9;
}

.article-body > *:last-child {
    margin-bottom: 0;
}

.article-body p {
    margin-bottom: 1.6rem;
}

.article-body h2 {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.45;
    margin: 2.1rem 0 1rem;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
}

.article-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--brand);
    margin: 1.8rem 0 0.8rem;
}

.article-body h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 1.5rem 0 0.6rem;
}

.article-body ul,
.article-body ol {
    padding-left: 1.35rem;
    margin-bottom: 1.6rem;
}

.article-body ul li,
.article-body ol li {
    margin-bottom: 0.35rem;
}

.article-body ul li::marker {
    color: var(--accent);
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 24px 0;
}

.article-body blockquote {
    margin: 24px 0;
    padding: 16px 22px;
    background: var(--soft-bg);
    border-left: 4px solid var(--brand);
    border-radius: 0 12px 12px 0;
    color: var(--muted);
}

.article-body blockquote p {
    margin: 0;
}

.article-body a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 4px;
    transition: color 0.3s ease;
}

.article-body a:hover {
    color: var(--brand);
    text-decoration-style: solid;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9375rem;
}

.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
}

.article-body th {
    background: var(--soft-bg);
    font-weight: 600;
    color: var(--brand);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tags-label {
    font-size: 0.8125rem;
    color: var(--muted);
    margin-right: 4px;
}

.article-tag {
    display: inline-block;
    background: #f0f5f9;
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 999px;
    transition: all 0.3s ease;
}

.article-tag:hover {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: rgba(15, 138, 125, 0.3);
}

/* 文末推荐 */
.related-section {
    margin-top: 20px;
    padding-top: 34px;
    border-top: 1px solid var(--border);
}

.related-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.related-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

.related-back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    color: var(--muted);
    transition: color 0.3s ease;
}

.related-back:hover {
    color: var(--accent);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-card {
    display: block;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    color: var(--text);
    box-shadow: 0 2px 8px rgba(21, 64, 103, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
    color: var(--text);
    border-color: rgba(15, 138, 125, 0.22);
    box-shadow: 0 12px 28px rgba(21, 64, 103, 0.1);
    transform: translateY(-4px);
}

.related-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
}

.related-card-body {
    padding: 16px 18px 20px;
}

.related-card-tag {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.related-card-body h3 {
    font-size: 0.9875rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.55;
    margin: 8px 0 8px;
}

.related-card-body p {
    font-size: 0.8125rem;
    color: var(--muted);
    line-height: 1.75;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 内容未找到 */
.article-empty {
    max-width: 760px;
    margin: 10px auto 0;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 4px 22px rgba(21, 64, 103, 0.06);
    padding: 70px 24px;
    text-align: center;
}

.article-empty .empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    margin: 0 auto 18px;
    background: #f0f5fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-empty h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--brand);
    margin: 0 0 10px;
}

.article-empty p {
    color: var(--muted);
    max-width: 440px;
    margin: 0 auto 28px;
    font-size: 0.9375rem;
}

/* 页脚 */
.site-footer {
    background: var(--soft-bg);
    border-top: 1px solid var(--border);
    padding: 64px 0 26px;
    color: var(--muted);
    font-size: 0.875rem;
}

.site-footer .navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--brand);
    padding: 0;
}

.site-footer .footer-brand-block p {
    margin: 14px 0 0;
    max-width: 360px;
    line-height: 1.85;
    font-size: 0.875rem;
}

.footer-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
}

.footer-link-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-link-list a {
    color: var(--muted);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    margin-top: 52px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 20px;
    font-size: 0.8125rem;
    color: #8b9aaa;
}

/* 响应式 */
@media (max-width: 1199.98px) {
    .header-search {
        min-width: 150px;
    }
}

@media (max-width: 991.98px) {
    .site-header .navbar {
        min-height: 64px;
    }

    .site-header .navbar-brand {
        font-size: 1rem;
    }

    .navbar-brand .brand-mark {
        width: 32px;
        height: 32px;
        font-size: 1.15rem;
    }

    .navbar-collapse {
        background: #ffffff;
        border-top: 1px solid var(--border);
        box-shadow: 0 16px 28px rgba(21, 64, 103, 0.08);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }

    .navbar-nav {
        display: flex;
        flex-direction: column;
        padding: 12px 12px 4px;
        gap: 0;
    }

    .site-header .nav-link {
        padding: 0.8rem 14px !important;
        border-radius: 10px;
    }

    .site-header .nav-link.active {
        background: var(--accent-soft);
        color: var(--brand);
    }

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

    .header-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 10px 16px 24px;
    }

    .header-search-mobile {
        display: flex;
        height: 42px;
        border-radius: 12px;
        padding: 0 12px;
    }

    .header-search-mobile input {
        font-size: 0.875rem;
    }

    .header-login {
        text-align: center;
        padding: 8px 0;
    }

    .btn-header {
        width: 100%;
    }
}

@media (max-width: 767.98px) {
    .container {
        padding-left: 24px;
        padding-right: 24px;
    }

    .article-main {
        padding: 28px 0 64px;
    }

    .article-shell {
        padding: 30px 22px;
    }

    .article-meta {
        gap: 8px 10px;
    }

    .article-back-link {
        margin-left: 0;
        width: 100%;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .site-footer {
        padding-top: 48px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        margin-top: 38px;
    }
}

@media (max-width: 575.98px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .article-shell {
        border-radius: 16px;
        padding-left: 18px;
        padding-right: 18px;
    }

    .site-header .navbar-brand {
        gap: 7px;
    }

    .related-card-body h3 {
        font-size: 0.9375rem;
    }
}

/* roulang page: category2 */
:root{
  --font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --body-bg:#ffffff;
  --soft-bg:#f5f8fc;
  --soft-mid:#edf3f8;
  --brand:#1d4c77;
  --brand-dark:#163a5e;
  --brand-light:#eaf1f8;
  --accent:#0f8a7d;
  --accent-soft:#e1f2ef;
  --text:#1f2e3d;
  --text-2:#5b6b7d;
  --border:#e3eaf1;
  --danger:#b97d3b;
  --radius-sm:8px;
  --radius-card:14px;
  --radius-media:20px;
  --radius-pill:999px;
  --shadow-card:0 2px 12px rgba(21,64,103,.06),0 1px 2px rgba(21,64,103,.04);
  --shadow-hover:0 12px 28px rgba(21,64,103,.1);
  --shadow-btn:0 6px 14px rgba(21,64,103,.18);
  --transition:.3s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-family);
  font-size:16px;
  line-height:1.8;
  background:var(--body-bg);
  color:var(--text);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul,ol,li{margin:0;padding:0;list-style:none}
figure{margin:0}
input{font-family:inherit}
button{font-family:inherit}
.container{
  width:100%;
  margin-right:auto;
  margin-left:auto;
  padding-right:40px;
  padding-left:40px;
}
.row{--bs-gutter-x:24px}
.section{padding-block:96px}
.section-sm{padding-block:64px}
.section-soft{background:var(--soft-bg)}
.text-muted-custom{color:var(--text-2)}
.bg-soft-custom{background:var(--soft-bg)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:.66rem 1.6rem;
  border-radius:var(--radius-pill);
  font-size:.95rem;
  font-weight:600;
  line-height:1.4;
  border:1px solid transparent;
  gap:8px;
  transition:all var(--transition);
  white-space:nowrap;
}
.btn .btn-arrow{transition:transform var(--transition)}
.btn:hover .btn-arrow{transform:translateX(4px)}
.btn-primary{
  --bs-btn-bg:var(--brand);
  --bs-btn-border-color:var(--brand);
  --bs-btn-color:#fff;
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.btn-primary{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.btn-primary:hover,.btn-primary.active{
  background:var(--brand-dark);
  border-color:var(--brand-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-btn);
}
.btn-outline{
  background:#fff;
  border-color:var(--border);
  color:var(--brand-dark);
}
.btn-outline:hover,.btn-outline.active{
  border-color:#b8c7d6;
  color:var(--brand-dark);
  background:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-card);
}
.btn-accent{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.btn-accent:hover,.btn-accent.active{
  background:#0b7469;
  border-color:#0b7469;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(15,138,125,.22);
  color:#fff;
}
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
button:focus-visible{
  outline:3px solid rgba(15,138,125,.32);
  outline-offset:3px;
}
.section-title{
  font-size:1.75rem;
  line-height:1.3;
  font-weight:600;
  color:var(--brand-dark);
  margin-bottom:.35rem;
  letter-spacing:-.01em;
}
.section-subtitle{
  color:var(--text-2);
  font-size:1rem;
  max-width:720px;
  line-height:1.8;
  margin-bottom:0;
}
.section-head{
  margin-bottom:42px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:26px;
  padding:2px 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-light);
  color:var(--brand);
  font-size:.8125rem;
  font-weight:500;
  line-height:1;
}
.tag-accent{
  background:var(--accent-soft);
  color:var(--accent);
}
.dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
  display:inline-block;
}

/* Scroll progress line */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  height:3px;
  width:0%;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  z-index:1080;
  pointer-events:none;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 8px rgba(21,64,103,.04);
  backdrop-filter:none;
}
.navbar{
  min-height:72px;
  padding:0;
}
.site-header .navbar-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-right:18px;
  color:var(--brand-dark);
  font-weight:700;
  font-size:1.12rem;
  letter-spacing:.01em;
  line-height:1.2;
}
.site-header .navbar-brand .brand-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:0;
  position:relative;
  overflow:hidden;
  flex:none;
  box-shadow:0 4px 12px rgba(29,76,119,.24);
}
.site-header .navbar-brand .brand-mark::after{
  content:"";
  position:absolute;
  right:-6px;
  top:-6px;
  width:22px;
  height:1px;
  transform:rotate(45deg);
  background:rgba(255,255,255,.8);
}
.navbar .navbar-nav .nav-link{
  font-size:.95rem;
  font-weight:500;
  color:var(--text);
  padding:.55rem .85rem;
  border-radius:6px;
  transition:color var(--transition);
  position:relative;
}
.navbar .navbar-nav .nav-link:hover{
  color:var(--accent);
}
.navbar .navbar-nav .nav-link.active{
  color:var(--brand);
  font-weight:600;
}
@media(min-width:992px){
  .navbar .navbar-nav .nav-link{
    padding:1.65rem .8rem;
  }
  .navbar .navbar-nav .nav-link::after{
    content:"";
    position:absolute;
    left:.8rem;
    right:.8rem;
    bottom:14px;
    height:2px;
    border-radius:2px;
    background:transparent;
    transition:background var(--transition);
  }
  .navbar .navbar-nav .nav-link:hover::after{
    background:var(--accent);
  }
  .navbar .navbar-nav .nav-link.active::after{
    background:var(--accent);
  }
}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:8px;
}
.header-search{
  display:flex;
  align-items:center;
  gap:7px;
  height:36px;
  padding:0 14px;
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  background:#f8fbfe;
  transition:border-color var(--transition),box-shadow var(--transition);
  width:166px;
}
.header-search svg{flex:none}
.header-search:hover{
  border-color:#b8c7d6;
}
.header-search input{
  border:0;
  background:transparent;
  padding:0;
  width:100%;
  font-size:.8125rem;
  color:var(--text);
  outline:none;
}
.header-search input::placeholder{
  color:#8797a8;
}
.header-search-mobile{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 14px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  margin-bottom:12px;
}
.header-search-mobile input{
  border:0;
  background:transparent;
  padding:0;
  width:100%;
  font-size:.875rem;
  color:var(--text);
  outline:none;
}
.header-login{
  font-size:.9rem;
  font-weight:600;
  color:var(--text-2);
  padding:.3rem .3rem;
  white-space:nowrap;
  transition:color var(--transition);
}
.header-login:hover{color:var(--brand)}
.btn-header{
  min-height:40px;
  padding:.5rem 1.35rem;
  background:var(--brand);
  color:#fff;
  font-size:.9rem;
  border-radius:var(--radius-pill);
  border:0;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  transition:all var(--transition);
}
.btn-header:hover{
  background:var(--brand-dark);
  transform:translateY(-1px);
  box-shadow:var(--shadow-card);
}
.navbar-toggler{
  width:42px;
  height:42px;
  padding:8px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  box-shadow:none;
  outline:none;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.navbar-toggler span{
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--brand-dark);
  display:block;
  transition:opacity .2s,transform .2s;
}
.navbar-toggler:hover span{background:var(--accent)}
.navbar-toggler:focus{box-shadow:none}

/* Page head */
.page-head{
  background:var(--soft-bg);
  padding:48px 0 52px;
  border-bottom:1px solid var(--border);
}
.crumb-nav{
  margin-bottom:26px;
}
.crumb-nav ol{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:center;
  font-size:.85rem;
  color:var(--text-2);
}
.crumb-nav li{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.crumb-nav li:not(:last-child)::after{
  content:"/";
  color:#c4d0dc;
  margin-left:2px;
}
.crumb-nav a:hover{
  color:var(--accent);
}
.crumb-nav [aria-current="page"]{
  color:var(--text);
  font-weight:600;
}
.page-title{
  margin:14px 0 14px;
  font-size:clamp(1.9rem,4vw,2.7rem);
  line-height:1.25;
  font-weight:650;
  color:var(--brand-dark);
  letter-spacing:-.01em;
  max-width:760px;
}
.page-lead{
  font-size:1.05rem;
  line-height:1.85;
  color:var(--text-2);
  max-width:720px;
  margin-bottom:26px;
}
.head-actions{
  margin-top:10px;
}
.media-frame{
  border-radius:var(--radius-media);
  overflow:hidden;
  background:#e9eff5;
  border:1px solid #e1e8f0;
  box-shadow:var(--shadow-card);
  position:relative;
}
.media-frame img{
  width:100%;
  height:auto;
  object-fit:cover;
  aspect-ratio:4/3;
}
.media-frame figcaption{
  position:absolute;
  left:14px;
  bottom:14px;
  background:rgba(255,255,255,.92);
  color:var(--brand-dark);
  font-size:.8rem;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  box-shadow:0 4px 10px rgba(21,64,103,.08);
}

/* Security check cards */
.safe-section{}
.safe-card{
  height:100%;
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:26px 24px;
  box-shadow:var(--shadow-card);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  display:flex;
  gap:16px;
}
.safe-card:hover{
  transform:translateY(-4px);
  border-color:#c9d6e3;
  box-shadow:var(--shadow-hover);
}
.safe-icon{
  width:44px;
  height:44px;
  flex:none;
  border-radius:12px;
  background:var(--brand-light);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.safe-content{
  min-width:0;
}
.safe-content .card-title{
  font-size:1rem;
  font-weight:600;
  color:var(--text);
  margin:0 0 8px;
  line-height:1.4;
}
.safe-content p{
  font-size:.9rem;
  color:var(--text-2);
  margin:0;
  line-height:1.75;
}
.safe-row .col-lg-6,.safe-row .col-md-6{margin-bottom:24px}
.safe-row [class*="col-"]{
  margin-bottom:24px;
}
.safe-row .col-lg-6,.safe-row .col-md-6{
  margin-bottom:24px;
}

/* Misconception / tips section */
.tip-section{
  background:var(--soft-bg);
  border-block:1px solid var(--border);
}
.tip-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:22px;
  height:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  transition:transform var(--transition),box-shadow var(--transition);
}
.tip-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.tip-icon{
  width:40px;
  height:40px;
  border-radius:12px;
  flex:none;
  background:#f6eadb;
  color:var(--danger);
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:1.1rem;
}
.tip-body h3{
  font-size:1rem;
  font-weight:600;
  color:var(--text);
  margin:0 0 6px;
  line-height:1.45;
}
.tip-body p{
  font-size:.875rem;
  color:var(--text-2);
  line-height:1.7;
  margin:0;
}
.tip-row .col-lg-6{margin-bottom:22px}
.tip-row [class*="col-"]{margin-bottom:22px}

/* Security level section */
.level-section{
  background:#fff;
}
.level-wrap{
  margin-top:30px;
}
.level-card{
  background:var(--soft-bg);
  border:1px solid var(--border);
  border-radius:18px;
  padding:28px 24px;
  height:100%;
  transition:transform var(--transition),box-shadow var(--transition);
  position:relative;
  overflow:hidden;
}
.level-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  background:#f2f8fd;
}
.level-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:16px;
}
.level-index{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  font-size:.95rem;
  font-weight:700;
  display:grid;
  place-items:center;
  box-shadow:0 4px 10px rgba(29,76,119,.2);
}
.level-tag{
  display:inline-flex;
  padding:3px 11px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:.75rem;
  font-weight:600;
}
.level-card h3{
  font-size:1.18rem;
  font-weight:600;
  color:var(--brand-dark);
  margin-bottom:10px;
}
.level-card p{
  color:var(--text-2);
  font-size:.875rem;
  margin-bottom:18px;
  line-height:1.75;
}
.level-list li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:.84rem;
  color:var(--text);
  margin-bottom:9px;
  line-height:1.6;
}
.level-list svg{
  flex:none;
  margin-top:5px;
  color:var(--accent);
}
.security-note{
  margin-top:48px;
  background:var(--accent-soft);
  color:#1a5550;
  border-radius:16px;
  padding:18px 20px;
  font-size:.875rem;
  display:flex;
  gap:12px;
  align-items:center;
  line-height:1.7;
}
.security-note svg{flex:none}
.security-note strong{font-weight:600}

/* FAQ Section */
.faq-section{
  background:var(--soft-bg);
  border-top:1px solid var(--border);
}
.faq-wrap{
  max-width:960px;
  margin:0 auto;
}
.faq-wrap .section-head{
  max-width:760px;
}
.faq-accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-btn-padding-x:0;
  --bs-accordion-btn-padding-y:0;
  --bs-accordion-body-padding-x:0;
  --bs-accordion-body-padding-y:0;
}
.accordion-item{
  border:1px solid var(--border) !important;
  border-radius:14px !important;
  margin-bottom:14px;
  background:#fff;
  overflow:hidden;
  transition:box-shadow var(--transition);
}
.accordion-item:hover{
  box-shadow:var(--shadow-card);
}
.accordion-button{
  font-size:1rem;
  font-weight:600;
  color:var(--text);
  padding:18px 20px;
  border:0;
  background:transparent;
  outline:0;
  box-shadow:none !important;
  transition:color var(--transition),background var(--transition);
  position:relative;
}
.accordion-button:not(.collapsed){
  background:#f9fbfd;
  color:var(--brand-dark);
  box-shadow:inset 0 -1px 0 var(--border) !important;
}
.accordion-button::after{
  content:"+";
  background:none !important;
  font-size:1.4rem;
  font-weight:400;
  color:var(--brand);
  line-height:1;
  width:auto;
  height:auto;
  opacity:.6;
}
.accordion-button:not(.collapsed)::after{
  content:"×";
  opacity:.9;
  transform:none;
}
.accordion-button:hover{
  color:var(--brand);
}
.accordion-body{
  padding:4px 20px 20px;
  color:var(--text-2);
  font-size:.9rem;
  line-height:1.85;
}

/* Final CTA */
.cta-section{
  background:#fff;
}
.cta-outer{
  position:relative;
  background:var(--soft-bg);
  border:1px solid var(--border);
  border-radius:24px;
  padding:22px;
  overflow:hidden;
}
.cta-outer::before{
  content:"";
  position:absolute;
  right:-70px;
  top:-70px;
  width:240px;
  height:240px;
  border-radius:50%;
  background:rgba(29,76,119,.06);
}
.cta-card{
  background:#fff;
  border-radius:18px;
  box-shadow:var(--shadow-card);
  padding:38px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  position:relative;
  z-index:1;
  flex-wrap:wrap;
}
.cta-copy{
  max-width:660px;
}
.cta-copy h2{
  font-size:1.5rem;
  font-weight:600;
  color:var(--text);
  margin:14px 0 8px;
}
.cta-copy p{
  color:var(--text-2);
  margin:0;
  font-size:.95rem;
  line-height:1.8;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}

/* Footer */
.site-footer{
  background:#142434;
  color:#c9d6df;
  padding-top:68px;
}
.site-footer .navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
  color:#fff;
  font-size:1.12rem;
  font-weight:700;
}
.site-footer .brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:1.15rem;
  position:relative;
  overflow:hidden;
  flex:none;
}
.site-footer .brand-mark::after{
  content:"";
  position:absolute;
  right:-5px;
  top:-6px;
  width:20px;
  height:1px;
  transform:rotate(45deg);
  background:rgba(255,255,255,.8);
}
.site-footer p{
  font-size:.875rem;
  line-height:1.8;
  color:#9dafbf;
  max-width:420px;
  margin-bottom:0;
}
.footer-title{
  color:#fff;
  font-size:.93rem;
  font-weight:600;
  margin-bottom:18px;
}
.footer-link-list li{
  margin-bottom:10px;
}
.footer-link-list a{
  color:#9dafbf;
  font-size:.875rem;
  transition:color var(--transition),padding-left var(--transition);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.footer-link-list a::before{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:#4a6479;
  transition:background var(--transition);
}
.footer-link-list a:hover{
  color:var(--accent);
  padding-left:2px;
}
.footer-link-list a:hover::before{
  background:var(--accent);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:48px;
  padding:22px 0 24px;
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:.8rem;
  color:#8296a6;
}
.footer-bottom span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

/* Responsive */
@media(max-width:1199.98px){
  .header-search{width:142px}
  .navbar .navbar-nav .nav-link{
    font-size:.88rem;
    padding-left:.55rem;
    padding-right:.55rem;
  }
}
@media(max-width:991.98px){
  .section{padding-block:72px}
  .navbar-collapse{
    background:#fff;
    border-top:1px solid var(--border);
    padding:18px 0 24px;
    margin-top:0;
  }
  .navbar .navbar-nav{
    flex-direction:column;
    gap:2px;
  }
  .navbar .navbar-nav .nav-link{
    padding:.75rem .5rem;
    border-bottom:1px solid #f0f4f9;
    border-radius:0;
    font-size:.95rem;
  }
  .navbar .navbar-nav .nav-link::after{
    display:none;
  }
  .header-actions{
    flex-wrap:wrap;
    margin-left:0;
    padding-top:10px;
  }
  .btn-header{
    min-height:44px;
  }
  .header-search{
    display:flex;
    width:100%;
    height:44px;
    order:4;
  }
  .header-search-mobile{
    display:none;
  }
  .page-head{
    padding:38px 0 40px;
  }
  .page-head .media-frame{
    max-width:560px;
  }
}
@media(max-width:767.98px){
  .container{
    padding-right:24px;
    padding-left:24px;
  }
  .section{
    padding-block:58px;
  }
  .site-header .navbar-brand{
    font-size:1rem;
    margin-right:8px;
  }
  .cta-card{
    padding:26px 22px;
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-actions .btn{
    width:100%;
  }
  .header-actions .btn-header{
    width:100%;
  }
  .page-title{
    font-size:1.8rem;
  }
  .head-actions .btn{
    flex:0 0 auto;
  }
  .safe-card,
  .tip-card{
    padding:20px 18px;
  }
}
@media(max-width:575.98px){
  .container{
    padding-right:16px;
    padding-left:16px;
  }
  .btn{
    min-height:44px;
    padding:.58rem 1.25rem;
  }
  .head-actions .btn{
    width:100%;
  }
  .section-title{
    font-size:1.5rem;
  }
  .section-subtitle{
    font-size:.92rem;
  }
  .security-note{
    flex-direction:column;
    align-items:flex-start;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:center;
    text-align:center;
  }
  .site-footer{
    padding-top:52px;
  }
}

/* roulang page: category3 */
:root {
            --primary: #1d4c77;
            --primary-dark: #163a5e;
            --accent: #0f8a7d;
            --accent-dark: #0b756b;
            --accent-soft: rgba(15, 138, 125, .09);
            --soft-bg: #f5f8fc;
            --text-main: #1f2e3d;
            --text-sub: #5b6b7d;
            --border-line: #e3eaf1;
            --card-shadow: 0 2px 12px rgba(21, 64, 103, .06), 0 1px 2px rgba(21, 64, 103, .04);
            --hover-shadow: 0 12px 28px rgba(21, 64, 103, .10);
            --radius-card: 14px;
            --radius-panel: 20px;
            --font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

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

        html,
        body {
            margin: 0;
            padding: 0;
        }

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .3s ease;
        }

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

        .container {
            max-width: 1280px;
            padding-right: 40px;
            padding-left: 40px;
        }

        @media (max-width: 991.98px) {
            .container {
                padding-right: 24px;
                padding-left: 24px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-right: 16px;
                padding-left: 16px;
            }
        }

        .btn {
            border-radius: 999px;
            font-weight: 500;
            transition: transform .3s ease, box-shadow .3s ease, background-color .3s ease, color .3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-main {
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border: 1px solid var(--primary);
        }

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

        .btn-outline-light-custom {
            background: transparent;
            color: var(--text-main);
            border: 1px solid #b8c7d6;
            padding: 12px 28px;
        }

        .btn-outline-light-custom:hover {
            color: var(--accent);
            border-color: var(--accent);
            background: rgba(15, 138, 125, .04);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
            padding: 13px 30px;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(15, 138, 125, .45);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .site-header {
            position: sticky;
            top: 0;
            width: 100%;
            z-index: 1090;
            background: rgba(255, 255, 255, .98);
            border-bottom: 1px solid var(--border-line);
            box-shadow: 0 1px 10px rgba(21, 64, 103, .04);
        }

        .reading-progress {
            position: absolute;
            top: 0;
            left: 0;
            height: 3px;
            width: 0;
            background: var(--accent);
            z-index: 20;
            border-radius: 0 4px 4px 0;
            pointer-events: none;
        }

        .navbar {
            padding: 0;
            min-height: 72px;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            font-weight: 700;
            font-size: 1.18rem;
            letter-spacing: .01em;
            padding: 0;
            margin-right: 24px;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(145deg, #245d88, #123b58);
            border-radius: 8px 16px 12px 16px;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex: 0 0 auto;
            box-shadow: 0 8px 18px rgba(29, 76, 119, .18);
        }

        .navbar-toggler {
            border: none;
            width: 44px;
            height: 44px;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: transparent;
            padding: 0;
            border-radius: 10px;
        }

        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .navbar-toggler[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .navbar-collapse {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-nav .navbar-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .navbar-nav .nav-item {
            padding: 0 4px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 8px 10px;
            white-space: nowrap;
            position: relative;
            border-radius: 6px;
        }

        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -4px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(.4);
            transition: opacity .3s ease, transform .3s ease;
        }

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

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

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

        .header-actions {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 12px;
            margin-left: 18px;
        }

        .header-search,
        .header-search-mobile {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 38px;
            border: 1px solid var(--border-line);
            background: #fff;
            border-radius: 999px;
            padding: 0 14px;
            min-width: 200px;
            color: var(--text-sub);
        }

        .header-search input,
        .header-search-mobile input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 100%;
            color: var(--text-main);
        }

        .header-search-mobile {
            display: flex;
            width: 100%;
            min-width: 0;
            margin-bottom: 8px;
            margin-top: 4px;
        }

        .header-login-link {
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 8px;
        }

        .header-login-link:hover {
            color: var(--primary);
            background: var(--soft-bg);
        }

        .btn-header-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            font-weight: 500;
            font-size: 14px;
            border-radius: 999px;
            padding: 10px 22px;
            min-width: 112px;
            white-space: nowrap;
        }

        .btn-header-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(29, 76, 119, .18);
        }

        @media (min-width: 992px) {
            .header-search-mobile {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border: 1px solid var(--border-line);
                border-radius: 16px;
                box-shadow: 0 18px 32px rgba(21, 64, 103, .08);
                padding: 18px;
                margin-top: 14px;
            }
            .navbar-nav {
                align-items: flex-start;
                padding-top: 0;
            }
            .navbar-nav .nav-link {
                white-space: normal;
                padding: 10px 4px;
            }
            .header-actions {
                flex-wrap: wrap;
                justify-content: stretch;
                margin-left: 0;
                padding-top: 10px;
                border-top: 1px solid var(--border-line);
            }
            .header-login-link,
            .btn-header-primary {
                justify-content: center;
            }
            .header-login-link {
                flex: 1 1 auto;
            }
            .btn-header-primary {
                flex: 1 1 auto;
            }
        }

        .page-header {
            position: relative;
            padding: 76px 0 64px;
            background:
                linear-gradient(180deg, rgba(245, 248, 252, .94) 0%, rgba(255, 255, 255, .96) 100%),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            border-bottom: 1px solid var(--border-line);
        }

        .page-header .breadcrumb-area {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .breadcrumb-nav {
            font-size: 14px;
            color: var(--text-sub);
        }

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

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

        .breadcrumb-img {
            width: 6px;
            height: 6px;
            border-right: 1.5px solid #b0bfca;
            border-top: 1.5px solid #b0bfca;
            transform: rotate(45deg);
            display: inline-block;
            margin: 0 8px 2px 4px;
        }

        .page-header .page-kicker {
            display: inline-flex;
            align-items: center;
            background: var(--accent-soft);
            border: 1px solid rgba(15, 138, 125, .16);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .page-header h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            line-height: 1.25;
            font-weight: 650;
            color: var(--text-main);
            max-width: 860px;
            margin-bottom: 18px;
            letter-spacing: .01em;
        }

        .page-header .page-lead {
            color: var(--text-sub);
            font-size: 1.06rem;
            max-width: 820px;
            margin: 0;
            line-height: 1.9;
        }

        .section {
            padding: 96px 0;
        }

        @media (max-width: 991.98px) {
            .section {
                padding: 72px 0;
            }
            .page-header {
                padding: 60px 0 48px;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }
            .page-header {
                padding: 42px 0 38px;
            }
            .page-header h1 {
                font-size: 1.85rem;
            }
        }

        .section-head {
            max-width: 860px;
            margin: 0 auto 58px;
            text-align: center;
        }

        .section-head .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .04em;
            margin-bottom: 8px;
        }

        .section-head .section-kicker::before,
        .section-head .section-kicker::after {
            content: "";
            width: 22px;
            height: 1px;
            background: rgba(15, 138, 125, .35);
        }

        .section-head h2 {
            font-size: clamp(1.75rem, 3vw, 2.2rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 14px;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin-bottom: 0;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            padding: 28px 24px;
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .service-card:hover {
            border-color: rgba(15, 138, 125, .25);
            transform: translateY(-4px);
            box-shadow: var(--hover-shadow);
        }

        .service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(145deg, rgba(29, 76, 119, .10), rgba(15, 138, 125, .14));
            color: var(--primary);
            margin-bottom: 18px;
        }

        .service-icon svg {
            width: 22px;
            height: 22px;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .service-card p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .bg-soft-section {
            background: var(--soft-bg);
        }

        .service-media-row {
            align-items: center;
        }

        .media-frame {
            position: relative;
            border-radius: var(--radius-panel);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: var(--hover-shadow);
        }

        .media-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .media-frame .media-float-tag {
            position: absolute;
            right: 18px;
            bottom: 18px;
            background: rgba(255, 255, 255, .92);
            border: 1px solid rgba(255, 255, 255, .9);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 7px 14px;
            border-radius: 999px;
            box-shadow: 0 8px 18px rgba(21, 64, 103, .08);
            backdrop-filter: blur(4px);
        }

        .service-text-side {
            padding-left: 44px;
        }

        .service-text-side h2 {
            font-size: 1.85rem;
            line-height: 1.35;
            font-weight: 650;
            margin-bottom: 18px;
        }

        .service-text-side > p {
            font-size: 1.02rem;
            color: var(--text-sub);
            margin-bottom: 28px;
        }

        .inline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .inline-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 14px;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.75;
        }

        .inline-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(15, 138, 125, .12);
        }

        @media (max-width: 767.98px) {
            .service-text-side {
                padding-left: 0;
                padding-top: 32px;
            }
        }

        .flow-wrap {
            max-width: 920px;
            margin: 0 auto;
        }

        .flow-item {
            position: relative;
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 30px;
            padding: 28px 20px 28px 12px;
            border-bottom: 1px solid var(--border-line);
            transition: background-color .3s ease, border-color .3s ease;
        }

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

        .flow-item:hover {
            border-bottom-color: transparent;
        }

        .flow-num {
            font-family: "Georgia", "Times New Roman", serif;
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1;
            color: rgba(29, 76, 119, .22);
            letter-spacing: -0.03em;
            padding-top: 6px;
        }

        .flow-content h3 {
            font-size: 1.2rem;
            font-weight: 650;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .flow-content h3 span {
            display: inline-block;
            vertical-align: middle;
            background: var(--accent-soft);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 3px 11px;
            border-radius: 999px;
            margin-left: 10px;
        }

        .flow-content p {
            margin-bottom: 0;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.8;
        }

        .flow-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 24px;
            bottom: 24px;
            width: 3px;
            background: linear-gradient(180deg, var(--primary), rgba(15, 138, 125, .12));
            border-radius: 4px;
            opacity: .6;
        }

        .flow-item:last-child::before {
            bottom: 60%;
        }

        @media (max-width: 767.98px) {
            .flow-item {
                grid-template-columns: 58px 1fr;
                gap: 14px;
                padding-left: 12px;
            }
            .flow-num {
                font-size: 1.8rem;
            }
            .flow-content h3 span {
                display: block;
                margin: 8px 0 0;
                width: fit-content;
            }
        }

        .scope-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        @media (max-width: 767.98px) {
            .scope-wrap {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        .scope-col {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            padding: 34px;
            height: 100%;
        }

        .scope-col .scope-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.15rem;
            font-weight: 650;
            margin-bottom: 20px;
        }

        .scope-col .scope-title svg {
            width: 22px;
            height: 22px;
            color: var(--accent);
            flex: 0 0 auto;
        }

        .scope-col.green-border {
            border-top: 4px solid rgba(15, 138, 125, .6);
        }

        .scope-col.blue-border {
            border-top: 4px solid rgba(29, 76, 119, .6);
        }

        .scope-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .scope-list li {
            position: relative;
            padding: 10px 0 10px 30px;
            color: var(--text-sub);
            font-size: 15px;
            border-bottom: 1px dashed #edf1f5;
            line-height: 1.7;
        }

        .scope-list li:last-child {
            border-bottom: none;
        }

        .scope-list li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 20px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .blue-border .scope-list li::before {
            background: var(--primary);
            box-shadow: none;
        }

        .faq-wrap {
            max-width: 940px;
            margin: 0 auto;
        }

        .custom-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(21, 64, 103, .04);
        }

        .custom-accordion .accordion-button {
            background: #fff;
            padding: 20px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            box-shadow: none;
            font-family: var(--font-family);
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid rgba(227, 234, 241, .7);
        }

        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            border-radius: 0;
        }

        .custom-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235b6b7d'%3E%3Cpath d='M8 1a1 1 0 0 1 1 1v5h5a1 1 0 1 1 0 2H9v5a1 1 0 1 1-2 0V9H2a1 1 0 0 1 0-2h5V2a1 1 0 0 1 1-1z'/%3E%3C/svg%3E") !important;
            background-size: 16px;
            transition: transform .3s ease;
        }

        .custom-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='%230f8a7d'%3E%3Cpath d='M2 8a1 1 0 0 1 1-1h10a1 1 0 1 1 0 2H3a1 1 0 0 1-1-1z'/%3E%3C/svg%3E") !important;
            transform: rotate(0deg);
        }

        .custom-accordion .accordion-body {
            padding: 18px 26px 24px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
        }

        .bottom-entry-section {
            padding-top: 0;
        }

        .entry-panel {
            position: relative;
            background: linear-gradient(135deg, #ffffff 0%, var(--soft-bg) 100%);
            border-radius: var(--radius-panel);
            border: 1px solid var(--border-line);
            box-shadow: var(--hover-shadow);
            padding: 58px 66px;
            text-align: center;
            overflow: hidden;
        }

        .entry-panel::before {
            content: "";
            position: absolute;
            right: -30px;
            top: -30px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(15, 138, 125, .08) 0%, transparent 70%);
            pointer-events: none;
        }

        .entry-panel h2 {
            font-size: clamp(1.45rem, 2.6vw, 1.9rem);
            font-weight: 650;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .entry-panel p {
            color: var(--text-sub);
            max-width: 640px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

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

        @media (max-width: 767.98px) {
            .entry-panel {
                padding: 40px 20px;
            }
            .entry-actions {
                flex-direction: column;
            }
            .entry-actions .btn {
                width: 100%;
            }
        }

        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border-line);
            padding: 64px 0 0;
        }

        .site-footer .navbar-brand {
            margin: 0 0 16px;
        }

        .footer-brand-block p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 340px;
        }

        .footer-title {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            margin-bottom: 16px;
        }

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

        .footer-link-list li {
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .footer-link-list a {
            color: var(--text-sub);
            font-size: 14px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-line);
            margin-top: 48px;
            padding: 20px 0 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 28px;
            justify-content: space-between;
            color: var(--text-sub);
            font-size: 13px;
            line-height: 1.6;
        }

        @media (max-width: 767.98px) {
            .site-footer {
                padding-top: 40px;
            }
            .footer-bottom {
                margin-top: 28px;
                flex-direction: column;
                gap: 6px;
            }
        }