/* roulang page: index */
:root {
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-brand: #2F6FED;
            --color-brand-deep: #1E4FBF;
            --color-accent: #12A899;
            --color-amber: #F2A93B;
            --color-ink: #15263D;
            --color-subtle: #4E5C70;
            --color-muted: #7B899E;
            --color-line: #E4ECF5;
            --color-danger: #E2574C;
            --shadow-card: 0 10px 30px rgba(21, 45, 80, 0.08);
            --shadow-hover: 0 18px 44px rgba(18, 42, 85, 0.13);
            --radius: 18px;
            --radius-lg: 24px;
            --ease: cubic-bezier(0.22, 1, 0.36, 1) 200ms;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--color-bg);
            color: var(--color-ink);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            display: block;
            max-width: 100%;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        button {
            font-family: inherit;
            border: 0;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .section {
            padding: 96px 0;
        }
        .section-bg-white {
            background: var(--color-surface);
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 32px;
            line-height: 1.3;
            margin: 0;
            letter-spacing: -0.02em;
        }
        .section-head p {
            margin: 10px 0 0;
            color: var(--color-subtle);
            max-width: 600px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            color: var(--color-brand);
            background: rgba(47, 111, 237, 0.1);
            border-radius: 999px;
            padding: 4px 14px;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .more-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-brand);
            white-space: nowrap;
            transition: color var(--ease);
        }
        .more-link:hover {
            color: var(--color-brand-deep);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 50px;
            padding: 0 28px;
            border-radius: 14px;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid transparent;
            transition: translate var(--ease), background var(--ease), box-shadow var(--ease), border-color var(--ease);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-brand);
            color: #fff;
            box-shadow: 0 8px 18px rgba(47, 111, 237, 0.18);
        }
        .btn-primary:hover {
            background: var(--color-brand-deep);
            transform: translateY(-2px);
            box-shadow: 0 14px 26px rgba(30, 79, 191, 0.24);
        }
        .btn-outline {
            background: #fff;
            color: var(--color-brand);
            border-color: #C7DAF8;
        }
        .btn-outline:hover {
            background: #F0F6FF;
            border-color: var(--color-brand);
            transform: translateY(-2px);
        }
        .btn-lg {
            height: 54px;
            padding: 0 32px;
            border-radius: 16px;
        }
        .btn-sm {
            height: 42px;
            padding: 0 20px;
            border-radius: 12px;
            font-size: 14px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 8px;
            padding: 5px 12px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(47, 111, 237, 0.1);
            color: var(--color-brand);
        }
        .tag-amber {
            background: rgba(242, 169, 59, 0.15);
            color: #A6660A;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 130;
            height: 70px;
            background: #fff;
            border-bottom: 1px solid var(--color-line);
        }
        .header-inner {
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--color-brand-deep);
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 11px;
            background: var(--color-brand);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 8px 16px rgba(47, 111, 237, 0.24);
        }
        .logo-text {
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-ink);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
            margin-left: 36px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-subtle);
            line-height: 70px;
            position: relative;
            transition: color var(--ease);
        }
        .nav-link:hover {
            color: var(--color-brand);
        }
        .nav-link.active {
            color: var(--color-brand);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand);
        }
        .header-action {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            background: #F0F6FF;
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            right: 20px;
            left: 20px;
            z-index: 125;
            background: #fff;
            border: 1px solid var(--color-line);
            border-radius: 18px;
            box-shadow: var(--shadow-hover);
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            opacity: 0;
            pointer-events: none;
            transform: translateY(-12px);
            transition: opacity var(--ease), transform var(--ease);
        }
        .mobile-nav.open {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }
        .mobile-nav a {
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
        }
        .mobile-nav a.active {
            background: #F0F6FF;
            color: var(--color-brand);
        }
        .mobile-nav a:hover {
            background: #F0F6FF;
        }
        .hero {
            position: relative;
            padding: 88px 0 110px;
            overflow: hidden;
            background-image: linear-gradient(112deg, rgba(246, 249, 253, 0.92) 30%, rgba(255, 255, 255, 0.86)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 46% 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-copy {
            max-width: 540px;
        }
        .hero h1 {
            font-size: 44px;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 24px 0 18px;
            color: var(--color-ink);
        }
        .hero-sub {
            font-size: 17px;
            color: var(--color-subtle);
            line-height: 1.85;
            margin: 0;
            max-width: 440px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 36px;
        }
        .hero-proof {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 28px;
        }
        .hero-mock {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            min-height: 560px;
        }
        .video-card {
            width: min(330px, calc(100% - 70px));
            background: #fff;
            border: 1px solid #E8EEF6;
            border-radius: 38px;
            padding: 11px;
            box-shadow: 0 30px 60px rgba(21, 45, 80, 0.12);
            transform: rotate(1deg);
        }
        .video-screen {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            aspect-ratio: 9/16;
            background: #DFE8F3;
        }
        .video-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .video-screen::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 20, 40, 0.78) 0%, transparent 35%);
        }
        .video-top-note {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            color: var(--color-ink);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
        }
        .video-play {
            position: absolute;
            z-index: 3;
            top: 42%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.92);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand);
            box-shadow: 0 8px 20px rgba(10, 20, 40, 0.2);
        }
        .video-caption {
            position: absolute;
            z-index: 2;
            left: 18px;
            right: 18px;
            bottom: 38px;
            color: #fff;
        }
        .video-caption strong {
            display: block;
            font-size: 17px;
            line-height: 1.4;
        }
        .video-caption span {
            font-size: 13px;
            opacity: 0.85;
            margin-top: 4px;
            display: block;
        }
        .video-progress {
            position: absolute;
            z-index: 2;
            left: 18px;
            right: 18px;
            bottom: 14px;
            height: 3px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.35);
        }
        .video-progress span {
            display: block;
            height: 100%;
            border-radius: 3px;
            background: #fff;
        }
        .video-progress em {
            position: absolute;
            right: 0;
            top: 8px;
            font-style: normal;
            font-size: 11px;
            color: rgba(255, 255, 255, 0.8);
        }
        .mock-actions {
            display: flex;
            flex-direction: column;
            gap: 22px;
            align-items: center;
        }
        .mock-action {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 12px;
            color: var(--color-subtle);
            background: #fff;
            border: 1px solid #E8EEF6;
            box-shadow: 0 8px 16px rgba(21, 45, 80, 0.06);
            border-radius: 16px;
            min-width: 58px;
            padding: 10px 6px;
        }
        .mock-action svg {
            width: 22px;
            height: 22px;
        }
        .mock-action .hot {
            color: var(--color-amber);
        }
        .clip-section {
            padding: 110px 0 96px;
        }
        .clip-row {
            display: grid;
            grid-auto-flow: column;
            grid-auto-columns: 260px;
            gap: 22px;
            overflow-x: auto;
            padding-bottom: 18px;
            scroll-snap-type: x mandatory;
            scrollbar-width: thin;
        }
        .clip-card {
            background: #fff;
            border: 1px solid #E8EEF6;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            scroll-snap-align: start;
            transition: transform var(--ease), box-shadow var(--ease);
        }
        .clip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .clip-media {
            position: relative;
            display: block;
            overflow: hidden;
            aspect-ratio: 3/4;
            background: #ECF1F7;
        }
        .clip-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s var(--ease);
        }
        .clip-card:hover .clip-media img {
            transform: scale(1.05);
        }
        .clip-badge,
        .clip-duration {
            position: absolute;
            z-index: 2;
            margin: 0;
        }
        .clip-badge {
            left: 12px;
            top: 12px;
            background: rgba(242, 169, 59, 0.92);
            color: #5D3A06;
            font-weight: 700;
            font-size: 13px;
            padding: 4px 10px;
            border-radius: 999px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
        }
        .clip-duration {
            right: 12px;
            bottom: 12px;
            background: rgba(15, 25, 45, 0.72);
            color: #fff;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 7px;
        }
        .clip-play {
            position: absolute;
            left: 50%;
            top: 46%;
            transform: translate(-50%, -50%) scale(0.85);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.92);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand);
            opacity: 0;
            transition: opacity var(--ease), transform var(--ease);
            box-shadow: 0 10px 24px rgba(10, 20, 30, 0.18);
        }
        .clip-card:hover .clip-play {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
        .clip-body {
            padding: 18px 18px 20px;
        }
        .clip-body h3 {
            font-size: 17px;
            line-height: 1.55;
            margin: 0 0 12px;
            font-weight: 600;
        }
        .clip-body h3 a:hover {
            color: var(--color-brand);
        }
        .clip-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-muted);
            font-size: 13px;
        }
        .clip-meta .fire {
            color: var(--color-amber);
        }
        .detail-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 64px;
            align-items: center;
        }
        .curated-list {
            border-top: 1px solid var(--color-line);
        }
        .curated-item {
            display: grid;
            grid-template-columns: 46px 1fr auto;
            gap: 14px;
            align-items: center;
            padding: 24px 8px;
            border-bottom: 1px solid var(--color-line);
            transition: background var(--ease);
            border-radius: 14px;
        }
        .curated-item:hover {
            background: #F7FAFF;
        }
        .curated-num {
            font-size: 22px;
            font-weight: 800;
            color: #C4D4E8;
        }
        .curated-text h3 {
            margin: 0;
            font-size: 18px;
            font-weight: 700;
        }
        .curated-text h3 a:hover {
            color: var(--color-brand);
        }
        .curated-text p {
            margin: 3px 0 0;
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.6;
        }
        .curated-score {
            color: var(--color-amber);
            font-size: 14px;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .curated-arrow {
            color: #C6D3E4;
            transition: color var(--ease), transform var(--ease);
        }
        .curated-item:hover .curated-arrow {
            color: var(--color-brand);
            transform: translateX(4px);
        }
        .grass-visual {
            position: relative;
            min-height: 480px;
        }
        .grass-img-main {
            position: absolute;
            right: 12%;
            top: 30px;
            width: 64%;
            z-index: 2;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 24px 48px rgba(21, 45, 80, 0.18);
            transform: rotate(1deg);
        }
        .grass-img-sub {
            position: absolute;
            left: 0;
            bottom: 20px;
            width: 58%;
            z-index: 3;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 42px rgba(21, 45, 80, 0.16);
            transform: rotate(-1.4deg);
            border: 6px solid #fff;
        }
        .grass-img-main img,
        .grass-img-sub img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .grass-img-main img {
            aspect-ratio: 4/5;
        }
        .grass-img-sub img {
            aspect-ratio: 1/1;
        }
        .visual-note {
            position: absolute;
            left: 18%;
            top: 10px;
            z-index: 4;
            color: var(--color-brand-deep);
            background: #fff;
            padding: 8px 14px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 13px;
            box-shadow: 0 8px 18px rgba(21, 45, 80, 0.08);
        }
        .review-section {
            background-image: linear-gradient(rgba(246, 249, 253, 0.92), rgba(246, 249, 253, 0.96)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }
        .review-summary {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 34px;
            flex-wrap: wrap;
        }
        .review-score {
            font-size: 54px;
            font-weight: 800;
            color: var(--color-ink);
            line-height: 1;
        }
        .review-stars {
            color: var(--color-amber);
            font-size: 22px;
            letter-spacing: 4px;
        }
        .review-summary p {
            margin: 6px 0 0;
            color: var(--color-muted);
            font-size: 14px;
            max-width: 520px;
        }
        .review-row {
            display: grid;
            grid-auto-flow: column;
            grid-auto-columns: 320px;
            gap: 18px;
            overflow-x: auto;
            padding-bottom: 20px;
            scroll-snap-type: x mandatory;
        }
        .review-card {
            scroll-snap-align: start;
            background: #fff;
            border: 1px solid #E8EEF6;
            border-radius: 18px;
            padding: 22px;
            box-shadow: 0 10px 26px rgba(21, 45, 80, 0.06);
            transition: transform var(--ease), box-shadow var(--ease);
        }
        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .review-top {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            flex: none;
        }
        .avatar-name {
            font-weight: 600;
            font-size: 15px;
        }
        .avatar-time {
            font-size: 12px;
            color: var(--color-muted);
            display: block;
            line-height: 1.4;
        }
        .review-card p {
            margin: 0 0 16px;
            font-size: 15px;
            color: var(--color-subtle);
            line-height: 1.75;
        }
        .review-help {
            font-size: 13px;
            color: var(--color-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 999px;
            background: #F4F8FD;
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 24px;
        }
        .news-main {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid #E8EEF6;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--ease), box-shadow var(--ease);
        }
        .news-main:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .news-main-media {
            overflow: hidden;
        }
        .news-main-media img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: transform 0.4s var(--ease);
        }
        .news-main:hover .news-main-media img {
            transform: scale(1.03);
        }
        .news-main-body {
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .news-main-body h3 {
            margin: 14px 0 8px;
            font-size: 22px;
            line-height: 1.4;
        }
        .news-main-body p {
            color: var(--color-subtle);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }
        .news-meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
            width: 100%;
            font-size: 14px;
            color: var(--color-muted);
        }
        .news-meta-row time {
            font-size: 13px;
        }
        .news-more {
            color: var(--color-brand);
            font-weight: 600;
            font-size: 14px;
        }
        .news-more:hover {
            color: var(--color-brand-deep);
        }
        .news-aside {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            background: #fff;
            border: 1px solid #E8EEF6;
            border-radius: 18px;
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            box-shadow: 0 8px 18px rgba(21, 45, 80, 0.04);
            transition: box-shadow var(--ease), transform var(--ease);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-item h4 {
            margin: 12px 0 6px;
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
        }
        .news-item h4 a:hover {
            color: var(--color-brand);
        }
        .news-item p {
            margin: 0;
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-state {
            margin: 24px 0;
            background: #fff;
            border: 1px dashed #C7D9EE;
            border-radius: 20px;
            padding: 46px 20px;
            text-align: center;
            color: var(--color-muted);
        }
        .empty-state svg {
            width: 34px;
            height: 34px;
            color: #9DB8D8;
            margin: 0 auto 10px;
        }
        .cta-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            background: linear-gradient(120deg, #1E4FBF 0%, #2F6FED 100%);
            border-radius: 28px;
            padding: 52px 60px;
            color: #fff;
            flex-wrap: wrap;
            box-shadow: 0 18px 40px rgba(30, 79, 191, 0.3);
        }
        .cta-copy {
            max-width: 620px;
        }
        .cta-copy h2 {
            font-size: 30px;
            line-height: 1.35;
            margin: 0 0 10px;
        }
        .cta-copy p {
            margin: 0;
            opacity: 0.86;
            font-size: 16px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-panel .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .cta-panel .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .site-footer {
            background: #10233D;
            color: rgba(255, 255, 255, 0.78);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding: 80px 32px 50px;
        }
        .footer-brand p {
            margin: 18px 0 0;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.64);
            font-size: 15px;
        }
        .footer-logo {
            color: #fff;
            font-size: 22px;
        }
        .footer-logo .logo-mark {
            background: #fff;
            color: var(--color-brand-deep);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin: 0 0 20px;
            font-weight: 700;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            transition: color var(--ease);
        }
        .footer-col a:hover {
            color: #A6C6FF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 26px 0;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.46);
            font-size: 13px;
        }
        .mobile-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 110;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #fff;
            border-top: 1px solid var(--color-line);
            height: 62px;
            padding: 0 20px;
            transform: translateY(100%);
            transition: transform 0.3s var(--ease);
            box-shadow: 0 -10px 30px rgba(21, 45, 80, 0.08);
        }
        .mobile-bottom-bar.active {
            transform: translateY(0);
        }
        .mobile-bottom-text {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.4;
        }
        .mobile-bottom-text strong {
            display: block;
            color: var(--color-ink);
            font-size: 15px;
        }
        .back-top {
            position: fixed;
            right: 26px;
            bottom: 84px;
            z-index: 105;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--color-brand-deep);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px rgba(30, 79, 191, 0.3);
            opacity: 0;
            pointer-events: none;
            transform: translateY(10px);
            transition: opacity var(--ease), transform var(--ease);
        }
        .back-top.show {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }
        :focus-visible {
            outline: 3px solid rgba(47, 111, 237, 0.2);
            outline-offset: 2px;
            border-radius: 6px;
        }
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-copy {
                max-width: 100%;
            }
            .hero-sub {
                max-width: 100%;
            }
            .hero-mock {
                min-height: 0;
                justify-content: flex-start;
                padding-top: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .detail-grid {
                grid-template-columns: 1fr;
                gap: 64px;
            }
            .grass-visual {
                min-height: 420px;
                max-width: 620px;
            }
        }
        @media (max-width: 900px) {
            .section {
                padding: 72px 0;
            }
            .nav-links {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                padding: 40px 32px;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 20px;
            }
            .site-header {
                height: 64px;
            }
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 19px;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .mobile-nav {
                top: 64px;
            }
            .hero {
                padding: 56px 0 72px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-mock {
                flex-direction: column;
                align-items: center;
            }
            .mock-actions {
                flex-direction: row;
                gap: 12px;
            }
            .video-card {
                width: min(300px, 100%);
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .clip-section {
                padding: 72px 0 64px;
            }
            .clip-row {
                grid-auto-columns: 230px;
                margin: 0 -20px;
                padding: 0 20px 18px;
            }
            .clip-row::-webkit-scrollbar {
                height: 4px;
                background: #E7EEF6;
            }
            .clip-row::-webkit-scrollbar-thumb {
                background: #BAD0EA;
                border-radius: 4px;
            }
            .curated-item {
                grid-template-columns: 32px 1fr auto;
                padding: 20px 6px;
            }
            .curated-score {
                font-size: 12px;
            }
            .grass-visual {
                min-height: 360px;
            }
            .review-row {
                grid-auto-columns: 280px;
                margin: 0 -20px;
                padding: 0 20px 16px;
            }
            .cta-panel {
                padding: 34px 24px;
                border-radius: 22px;
            }
            .cta-copy h2 {
                font-size: 24px;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                padding: 56px 20px 30px;
                gap: 36px;
            }
            .footer-bottom {
                padding: 20px;
            }
            .back-top {
                right: 18px;
                bottom: 78px;
            }
            .mobile-bottom-bar {
                padding: 0 20px;
            }
            .mobile-bottom-text strong {
                font-size: 14px;
            }
            .mobile-bottom-text span {
                font-size: 12px;
            }
            .mobile-bottom-bar .btn {
                height: 42px;
                padding: 0 18px;
                border-radius: 12px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #F6F9FD;
            --surface: #FFFFFF;
            --brand: #2F6FED;
            --brand-deep: #1E4FBF;
            --accent: #12A899;
            --amber: #F2A93B;
            --red: #E2574C;
            --ink: #15263D;
            --body: #4E5C70;
            --faint: #7B899E;
            --line: #E4ECF5;
            --radius: 18px;
            --radius-lg: 22px;
            --shadow: 0 10px 30px rgba(21, 45, 80, 0.08);
            --shadow-hover: 0 18px 44px rgba(18, 42, 85, 0.13);
            --ease: cubic-bezier(0.22, 1, 0.36, 1);
            --container: 1240px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--body);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a,
        button,
        input,
        summary {
            transition: all .2s var(--ease);
        }

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

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        p {
            margin: 0;
        }

        .container {
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #FFFFFF;
            border-bottom: 1px solid var(--line);
            box-shadow: 0 6px 18px rgba(21, 45, 80, .03);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--brand);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            box-shadow: 0 6px 14px rgba(47, 111, 237, .24);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            position: relative;
            color: var(--body);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 0;
        }

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

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 3px;
            border-radius: 999px;
            background: var(--brand);
        }

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

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            background: #fff;
            border-radius: 12px;
            cursor: pointer;
            color: var(--ink);
        }

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 26px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: .01em;
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
            font-family: inherit;
            line-height: 1;
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 6px 18px rgba(47, 111, 237, .28);
        }

        .btn-primary:hover {
            background: var(--brand-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(30, 79, 191, .30);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: #fff;
            border-color: #c9d9f2;
            color: var(--brand);
        }

        .btn-outline:hover {
            background: rgba(47, 111, 237, .05);
            border-color: var(--brand);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, .85);
            border-color: rgba(255, 255, 255, .6);
            color: var(--brand-deep);
        }

        .btn-ghost-light:hover {
            background: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .btn-ghost-light:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(47, 111, 237, .20);
        }

        .cat-hero {
            position: relative;
            background:
                linear-gradient(100deg, #ffffff 0%, rgba(255, 255, 255, .92) 42%, rgba(246, 249, 253, .82) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
            padding: 66px 0 70px;
        }

        .cat-hero-inner {
            max-width: 860px;
        }

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--faint);
            margin-bottom: 18px;
        }

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

        .hero-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(18, 168, 153, .12);
            color: #0C7F73;
            font-size: 13px;
            font-weight: 600;
            padding: 7px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .hero-status::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(18, 168, 153, .15);
        }

        .cat-hero h1 {
            font-size: 42px;
            line-height: 1.2;
            color: var(--ink);
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .cat-hero .lead {
            margin-top: 18px;
            font-size: 17px;
            color: var(--body);
            max-width: 660px;
            line-height: 1.8;
        }

        .hero-desc-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
            margin-top: 26px;
        }

        .hero-desc-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink);
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 8px 16px;
            box-shadow: 0 6px 16px rgba(21, 45, 80, .04);
        }

        .hero-desc-item svg {
            width: 16px;
            height: 16px;
            color: var(--brand);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 34px;
            margin-top: 30px;
            padding-top: 22px;
            border-top: 1px solid var(--line);
            max-width: 620px;
        }

        .metric {
            display: flex;
            flex-direction: column;
        }

        .metric b {
            font-size: 24px;
            color: var(--ink);
            font-weight: 700;
            line-height: 1.2;
        }

        .metric span {
            font-size: 13px;
            color: var(--faint);
            margin-top: 4px;
        }

        .rank-section {
            padding: 90px 0 70px;
        }

        .section-head {
            margin-bottom: 34px;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            background: rgba(47, 111, 237, .08);
            border-radius: 999px;
            padding: 5px 14px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 30px;
            line-height: 1.3;
            color: var(--ink);
            font-weight: 700;
            margin: 0 0 10px;
        }

        .section-head p {
            color: var(--faint);
            max-width: 680px;
            font-size: 15px;
        }

        .chips-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 30px;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: thin;
        }

        .chip {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--line);
            color: var(--body);
            font-size: 14px;
            border-radius: 999px;
            padding: 9px 18px;
            cursor: pointer;
            white-space: nowrap;
            font-weight: 500;
        }

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

        .chip.active {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
            box-shadow: 0 6px 18px rgba(47, 111, 237, .24);
        }

        .chip .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: currentColor;
            opacity: .75;
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .rank-item {
            display: grid;
            grid-template-columns: 250px 1fr;
            background: var(--surface);
            border: 1px solid #E8EEF6;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform .2s var(--ease), box-shadow .2s var(--ease);
        }

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

        .rank-media {
            position: relative;
            min-height: 190px;
            overflow: hidden;
            background: #EAF0F8;
        }

        .rank-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s var(--ease);
        }

        .rank-item:hover .rank-media img {
            transform: scale(1.045);
        }

        .rank-media .play-badge {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .9);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 26px rgba(0, 0, 0, .16);
            backdrop-filter: blur(2px);
            opacity: 0;
            transition: opacity .25s ease;
        }

        .rank-item:hover .play-badge {
            opacity: 1;
        }

        .rank-media .play-badge svg {
            width: 20px;
            height: 20px;
            margin-left: 2px;
        }

        .rank-num {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .02em;
            box-shadow: 0 8px 18px rgba(0, 0, 0, .18);
        }

        .rank-num.r1 {
            background: #F2922C;
        }

        .rank-num.r2 {
            background: #5D82C8;
        }

        .rank-num.r3 {
            background: #3BA4A0;
        }

        .rank-num.r4,
        .rank-num.r5 {
            background: #1F3E73;
            opacity: .86;
        }

        .rank-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 26px 30px;
        }

        .rank-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .tag-light {
            display: inline-block;
            background: rgba(47, 111, 237, .09);
            color: var(--brand);
            font-size: 12px;
            font-weight: 600;
            border-radius: 7px;
            padding: 3px 10px;
        }

        .tag-hot {
            display: inline-block;
            background: rgba(242, 169, 59, .15);
            color: #B26A00;
            font-size: 12px;
            font-weight: 600;
            border-radius: 7px;
            padding: 3px 10px;
        }

        .rank-body h3 {
            font-size: 19px;
            line-height: 1.45;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 10px;
        }

        .rank-body h3 a {
            color: inherit;
        }

        .rank-body h3 a:hover {
            color: var(--brand);
        }

        .rank-summary {
            font-size: 15px;
            color: var(--body);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 680px;
        }

        .rank-meta {
            display: flex;
            align-items: center;
            gap: 16px 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--faint);
        }

        .rank-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .rank-meta .rating-good {
            color: #B26A00;
            font-weight: 600;
        }

        .rank-meta svg {
            width: 15px;
            height: 15px;
        }

        .stars {
            color: #F2A93B;
            letter-spacing: .08em;
        }

        .method-band {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 92px 0;
        }

        .method-grid {
            display: grid;
            grid-template-columns: 0.95fr 1.4fr;
            gap: 52px;
            align-items: center;
        }

        .method-left h2 {
            font-size: 30px;
            color: var(--ink);
            line-height: 1.3;
            font-weight: 700;
            margin: 12px 0 14px;
        }

        .method-left>p {
            color: var(--faint);
            font-size: 15px;
            line-height: 1.8;
        }

        .method-note {
            display: flex;
            gap: 10px;
            margin-top: 22px;
            background: rgba(18, 168, 153, .08);
            border-left: 3px solid var(--accent);
            padding: 14px 18px;
            border-radius: 0 14px 14px 0;
            font-size: 14px;
            color: #0C5B53;
        }

        .method-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .method-step {
            display: grid;
            grid-template-columns: 42px 1fr;
            gap: 16px;
            align-items: flex-start;
            background: #F8FAFE;
            border: 1px solid #EAF0F7;
            border-radius: var(--radius);
            padding: 22px 24px;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--brand);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 6px 14px rgba(47, 111, 237, .22);
        }

        .method-step h3 {
            font-size: 16px;
            color: var(--ink);
            font-weight: 600;
            margin-bottom: 5px;
        }

        .method-step p {
            font-size: 14px;
            color: var(--faint);
            line-height: 1.65;
        }

        .related-entry {
            padding: 84px 0 70px;
        }

        .related-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: linear-gradient(120deg, #EDF3FE, #F9FBFF);
            border: 1px solid #DCECFF;
            border-radius: var(--radius-lg);
            padding: 34px 38px;
            flex-wrap: wrap;
        }

        .related-row .text h3 {
            font-size: 20px;
            color: var(--ink);
            font-weight: 700;
        }

        .related-row .text p {
            color: var(--faint);
            margin-top: 6px;
            font-size: 14px;
        }

        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .related-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid #D6E5F8;
            border-radius: 999px;
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink);
        }

        .related-link:hover {
            border-color: var(--brand);
            color: var(--brand);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(47, 111, 237, .10);
        }

        .faq-section {
            padding: 0 0 96px;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            margin-top: 36px;
        }

        .faq-card {
            background: var(--surface);
            border: 1px solid #E8EEF6;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 22px 26px;
        }

        .faq-card summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 14px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.6;
            min-height: 28px;
            padding: 6px 0;
        }

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

        .faq-card summary::after {
            content: "＋";
            flex-shrink: 0;
            font-size: 20px;
            line-height: 1;
            color: var(--brand);
            font-weight: 400;
            transform: rotate(0deg);
            transition: transform .25s var(--ease);
        }

        .faq-card[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-card p {
            color: var(--body);
            font-size: 14px;
            line-height: 1.75;
            padding-top: 12px;
            border-top: 1px solid var(--line);
            margin-top: 12px;
        }

        .cta-band {
            background:
                linear-gradient(120deg, rgba(21, 38, 61, .92), rgba(21, 38, 61, .75)),
                url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 100px;
            flex-wrap: wrap;
            box-shadow: 0 14px 34px rgba(21, 45, 80, .16);
        }

        .cta-text h2 {
            color: #fff;
            font-size: 24px;
            line-height: 1.4;
            font-weight: 700;
        }

        .cta-text p {
            color: rgba(255, 255, 255, .82);
            font-size: 14px;
            margin-top: 8px;
        }

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

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

        .btn-white:hover {
            background: #F1F5FC;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .16);
        }

        .btn-outline-white {
            background: transparent;
            border-color: rgba(255, 255, 255, .58);
            color: #fff;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .12);
            border-color: rgba(255, 255, 255, .9);
            transform: translateY(-2px);
        }

        .site-footer {
            background: #10233D;
            color: rgba(255, 255, 255, .78);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
        }

        .footer-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 16px;
            color: rgba(255, 255, 255, .64);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .footer-col li {
            margin-bottom: 9px;
        }

        .footer-col a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 3px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        .back-top {
            position: fixed;
            right: 26px;
            bottom: 30px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: #FFFFFF;
            color: var(--brand);
            border: 1px solid var(--line);
            box-shadow: 0 10px 24px rgba(18, 45, 80, .14);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 50;
            opacity: .9;
        }

        .back-top:hover {
            transform: translateY(-4px);
            opacity: 1;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
            .nav-link {
                font-size: 14px;
            }
            .method-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .cta-band {
                margin-bottom: 80px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--line);
                box-shadow: 0 18px 34px rgba(21, 45, 80, .10);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 14px 24px 20px;
                border-radius: 0 0 22px 22px;
            }
            .nav-links.nav-open {
                display: flex;
            }
            .nav-link,
            .nav-link.active {
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid #F1F5FA;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
            .cat-hero {
                padding: 52px 0 56px;
            }
            .cat-hero h1 {
                font-size: 32px;
            }
            .rank-item {
                grid-template-columns: 1fr;
            }
            .rank-media {
                min-height: 210px;
            }
            .rank-body {
                padding: 22px 22px 24px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .rank-section {
                padding: 62px 0 50px;
            }
            .method-band {
                padding: 64px 0;
            }
            .related-entry {
                padding: 60px 0;
            }
            .faq-section {
                padding: 0 0 72px;
            }
            .cta-band {
                padding: 34px 26px;
                gap: 22px;
                margin-bottom: 72px;
                border-radius: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
        }

        @media (max-width: 520px) {
            .cat-hero .lead {
                font-size: 15px;
            }
            .section-head h2 {
                font-size: 25px;
            }
            .metric b {
                font-size: 21px;
            }
            .rank-body h3 {
                font-size: 17px;
            }
            .rank-summary {
                font-size: 14px;
            }
            .method-step {
                grid-template-columns: 32px 1fr;
                padding: 18px 16px;
            }
            .step-num {
                width: 32px;
                height: 32px;
                border-radius: 10px;
                font-size: 13px;
            }
            .cta-text h2 {
                font-size: 20px;
            }
            .related-links {
                flex-direction: column;
                width: 100%;
            }
            .related-link {
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
  --brand: #2F6FED;
  --brand-dark: #1E4FBF;
  --brand-soft: #EDF3FF;
  --accent: #12A899;
  --amber: #F2A93B;
  --text: #4E5C70;
  --ink: #15263D;
  --muted: #7B899E;
  --line: #E4ECF5;
  --page-bg: #F6F9FD;
  --surface: #FFFFFF;
  --radius: 20px;
  --radius-sm: 14px;
  --shadow: 0 10px 30px rgba(21, 45, 80, 0.08);
  --shadow-lg: 0 18px 44px rgba(18, 42, 85, 0.13);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 32px; padding-right: 32px; }
.content-width { max-width: 860px; margin-left: auto; margin-right: auto; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: 72px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(21,45,80,.04);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--ink); }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  background: var(--brand); color: #fff;
  display: grid; place-items: center;
  font-size: 18px; font-weight: 700;
  box-shadow: 0 6px 14px rgba(47,111,237,.25);
}
.logo-text { letter-spacing: .01em; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 9px 16px; border-radius: 999px;
  font-size: 15px; font-weight: 500; color: var(--muted);
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.nav-link:hover { background: var(--brand-soft); color: var(--brand-dark); }
.nav-link.active { background: #EDF3FF; color: var(--brand); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 26px; border-radius: 14px;
  background: var(--brand); color: #fff;
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
  transition: all .2s cubic-bezier(.22,1,.36,1); white-space: nowrap;
}
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); box-shadow: 0 8px 22px rgba(30,79,191,.22); }
.btn-primary:active { transform: translateY(1px); }
.btn-sm { height: 40px; padding: 0 20px; border-radius: 12px; font-size: 14px; }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 26px; border-radius: 14px;
  background: #fff; color: var(--brand);
  border: 1px solid #CBDDF5; font-size: 15px; font-weight: 600;
  transition: all .2s ease;
}
.btn-outline:hover { background: #F2F7FF; border-color: var(--brand); transform: translateY(-1px); }
.nav-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 12px; border: 1px solid var(--line); color: var(--ink); }

/* ===== Breadcrumb ===== */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 28px 0 6px; font-size: 14px; color: var(--muted); }
.breadcrumb a { transition: color .2s; }
.breadcrumb a:hover { color: var(--brand); }
.bc-sep { color: #CAE0F5; }

/* ===== Article card / content ===== */
.article-surface { border-radius: 28px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; padding: 56px 64px 72px; margin: 20px 0 32px; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 30px; margin-bottom: 44px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand);
  font-size: 13px; font-weight: 500;
}
.article-title { font-size: 36px; line-height: 1.3; font-weight: 700; color: var(--ink); margin: 18px 0 14px; letter-spacing: -0.01em; }
.article-excerpt { font-size: 16px; color: var(--muted); line-height: 1.85; max-width: 700px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; font-size: 14px; color: var(--muted); }
.article-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: #C9D7EA; }
.meta-icon { width: 16px; height: 16px; color: #AEC5E4; }

/* 正文排版 */
.article-content { font-size: 17px; line-height: 1.85; color: var(--text); }
.article-content > * + * { margin-top: 1.05em; }
.article-content h1,
.article-content h2 { font-size: 26px; line-height: 1.4; color: var(--ink); font-weight: 700; margin-top: 48px; }
.article-content h3 { font-size: 20px; color: var(--ink); font-weight: 700; margin-top: 32px; }
.article-content h4 { font-size: 18px; color: var(--ink); font-weight: 600; margin-top: 24px; }
.article-content p { color: #3E4D61; }
.article-content a {
  color: var(--brand); font-weight: 500;
  text-decoration: underline; text-decoration-color: rgba(47,111,237,.4); text-underline-offset: 3px;
  transition: color .2s;
}
.article-content a:hover { color: var(--brand-dark); }
.article-content blockquote {
  background: #F0F6FF; border-left: 4px solid var(--brand);
  border-radius: 0 16px 16px 0; padding: 20px 24px;
  color: #31507C; font-size: 16px;
}
.article-content ul,
.article-content ol { padding-left: 24px; }
.article-content li { margin: 8px 0; }
.article-content img { border-radius: 18px; box-shadow: var(--shadow); margin: 32px 0; }
.article-content figure { margin: 32px 0; }
.article-content figcaption { font-size: 13px; color: var(--muted); text-align: center; margin-top: 8px; }
.article-content hr { border: 0; height: 1px; background: var(--line); margin: 40px 0; }
.article-content table { border-collapse: collapse; width: 100%; font-size: 15px; border-radius: 14px; box-shadow: 0 0 0 1px var(--line); }
.article-content th { padding: 12px 16px; background: #EEF4FC; color: var(--ink); border-bottom: 1px solid var(--line); text-align: left; font-weight: 600; }
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--line); }
.article-content tr:last-child td { border-bottom: none; }
.article-content pre {
  background: #15263D; color: #F6F9FD; padding: 24px;
  border-radius: 16px; overflow: auto; font-size: 14px; line-height: 1.7;
}
.article-content pre code { background: transparent; color: #F6F9FD; padding: 0; }
.article-content code {
  background: #EDF2F9; padding: 3px 8px; border-radius: 6px;
  font-size: .9em; color: #3159B8;
}
.article-content iframe { max-width: 100%; border-radius: 16px; margin: 24px 0; }
.article-content video { max-width: 100%; border-radius: 16px; }

/* ===== 文章尾部链接 ===== */
.read-next-card {
  display: flex; align-items: center; gap: 24px;
  background: #F2F7FF; border: 1px solid #D9E9FB;
  border-radius: 22px; padding: 24px; margin-top: 52px;
}
.read-next-card img { width: 190px; height: 136px; object-fit: cover; border-radius: 16px; flex-shrink: 0; }
.read-next-info .badge { background: #fff; border: 1px solid #DCE8F9; }
.read-next-info strong { display: block; font-size: 18px; color: var(--ink); margin: 12px 0 8px; font-weight: 700; }
.read-next-info p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.page-return { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }

/* ===== Recomend 推荐区 ===== */
.recommend-block { padding-top: 12px; }
.section-title { margin-bottom: 20px; }
.section-title h2 { font-size: 28px; color: var(--ink); font-weight: 700; }
.section-title p { color: var(--muted); font-size: 15px; margin-top: 6px; }
.recommend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.recommend-item {
  display: flex; align-items: center; gap: 14px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 18px; padding: 16px;
  box-shadow: 0 4px 16px rgba(21,45,80,.04);
  transition: all .2s cubic-bezier(.22,1,.36,1);
}
.recommend-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: #C8DFFC; }
.recommend-item img { width: 96px; height: 76px; object-fit: cover; border-radius: 12px; flex-shrink: 0; }
.recommend-item span { font-size: 15px; color: var(--ink); font-weight: 500; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== Empty state ===== */
.empty-state {
  text-align: center; padding: 110px 24px;
  background: #fff; border: 2px dashed #CFE0F3;
  border-radius: 26px;
}
.empty-icon { width: 64px; height: 64px; margin: 0 auto 20px; color: #8FB8EF; }
.empty-state h1 { font-size: 30px; color: var(--ink); font-weight: 700; }
.empty-state p { margin-top: 10px; color: var(--muted); font-size: 16px; }
.empty-state .btn-primary { margin-top: 28px; }

/* ===== Footer ===== */
.site-footer { background: #10233D; color: #A6BBD6; padding-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .footer-logo { color: #fff; }
.footer-logo .logo-mark { background: #fff; color: var(--brand); box-shadow: none; }
.footer-brand p { margin-top: 18px; font-size: 15px; color: #8DA6C6; line-height: 1.8; max-width: 340px; }
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 18px; font-weight: 600; }
.footer-col ul { list-style: none; }
.footer-col li { margin: 10px 0; font-size: 14px; color: #91AACB; }
.footer-col a { color: #A9BFDA; font-size: 14px; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0; margin-top: 32px;
  font-size: 13px; color: #6F8FB3;
}

/* ===== Back top ===== */
#backTop {
  position: fixed; right: 26px; bottom: 96px; z-index: 40;
  width: 46px; height: 46px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line);
  color: var(--ink); box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s ease; opacity: 0; pointer-events: none;
}
#backTop.show { opacity: 1; pointer-events: auto; }
#backTop:hover { background: var(--brand); color: #fff; transform: translateY(-3px); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-surface { padding: 44px 40px 60px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .recommend-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .nav-links {
    position: fixed; top: 70px; left: 16px; right: 16px;
    background: #fff; border: 1px solid var(--line);
    border-radius: 18px; box-shadow: var(--shadow-lg);
    flex-direction: column; align-items: stretch;
    padding: 12px; display: none; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 13px 18px; font-size: 16px; border-radius: 12px; }
}
@media (max-width: 768px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .article-surface { padding: 28px 22px 44px; border-radius: 20px; }
  .article-title { font-size: 28px; }
  .article-excerpt { font-size: 15px; }
  .breadcrumb { padding-top: 20px; }
  .read-next-card { flex-direction: column; align-items: flex-start; }
  .read-next-card img { width: 100%; height: 180px; }
  .recommend-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer { padding-top: 48px; }
  .article-content { font-size: 16px; line-height: 1.8; }
  .article-content img { border-radius: 16px; }
}
@media (max-width: 520px) {
  .article-title { font-size: 24px; }
  .article-head { padding-bottom: 22px; margin-bottom: 30px; }
  .empty-state { padding: 70px 20px; }
}
@media (max-width: 380px) {
  .logo-text { font-size: 18px; }
  .article-surface { padding-left: 16px; padding-right: 16px; }
  .footer-bottom { flex-direction: column; }
}

/* roulang page: category2 */
:root {
  --paper: #F6F9FD;
  --surface: #FFFFFF;
  --brand: #2F6FED;
  --brand-deep: #1E4FBF;
  --ink: #15263D;
  --copy: #4E5C70;
  --subtle: #7B899E;
  --line: #E4ECF5;
  --accent: #12A899;
  --amber: #F2A93B;
  --danger: #E2574C;
  --radius-lg: 20px;
  --radius-md: 16px;
  --shadow-card: 0 10px 30px rgba(21, 45, 80, 0.08);
  --shadow-hover: 0 18px 44px rgba(18, 42, 85, 0.13);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--paper);
  color: var(--copy);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1280px; margin-left: auto; margin-right: auto; padding-left: 32px; padding-right: 32px; }
@media (max-width: 520px) {
  .container { padding-left: 20px; padding-right: 20px; }
}
::selection { background: rgba(47, 111, 237, 0.18); }

h1, h2, h3, h4, h5, h6 { color: var(--ink); line-height: 1.3; }
h1 { font-size: 44px; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.01em; }
@media (max-width: 768px) {
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  border-radius: 14px;
  padding: 14px 26px;
  border: 1px solid transparent;
  transition: all .2s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-sm { padding: 10px 20px; border-radius: 999px; font-size: 14px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 24px rgba(47, 111, 237, .22); }
.btn-primary:hover { background: var(--brand-deep); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(30, 79, 191, .26); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 6px 18px rgba(30, 79, 191, .2); }
.btn-ghost { background: #fff; color: var(--brand); border-color: #CCDDF4; }
.btn-ghost:hover { background: rgba(47, 111, 237, .05); border-color: var(--brand); }
.btn-ghost:active { background: rgba(47, 111, 237, .1); }
.btn-white { background: #fff; color: var(--brand-deep); }
.btn-white:hover { background: #EAF1FF; transform: translateY(-2px); }
.bg-card-cta .btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.12); }
.bg-card-cta .btn-ghost:hover { background: rgba(255,255,255,.22); border-color: #fff; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), border-color .3s ease;
}
.site-header.scrolled { border-bottom-color: #DCE6F2; box-shadow: 0 6px 18px rgba(21,45,80,.06); }
.header-inner { display: flex; align-items: center; height: 72px; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); font-size: 20px; line-height: 1; flex-shrink: 0; }
.logo .logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 12px;
  background: linear-gradient(145deg, #2F6FED 0%, #1E4FBF 100%);
  color: #fff; font-weight: 700; font-size: 20px;
  box-shadow: 0 6px 14px rgba(47,111,237,.3);
  letter-spacing: 0;
}
.nav-links { display: flex; align-items: center; gap: 4px; overflow-x: auto; scrollbar-width: none; flex: 1; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-flex; align-items: center; flex-shrink: 0;
  height: 40px; padding: 0 16px;
  color: #35405A; font-weight: 500; font-size: 15px;
  border-radius: 999px;
  transition: background .2s ease, color .2s ease;
}
.nav-link:hover { background: rgba(47,111,237,.07); color: var(--brand); }
.nav-link.active { background: rgba(47,111,237,.1); color: var(--brand); font-weight: 600; }
.header-cta { margin-left: auto; }
.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  align-items: center; justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; }
.mobile-drawer {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 16px 24px 24px;
}
.mobile-drawer.is-open { display: block; }
.mobile-drawer .nav-link { width: 100%; height: 44px; }
.mobile-drawer .btn { width: 100%; margin-top: 8px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .header-inner { justify-content: space-between; }
}

/* hero */
.category-hero { position: relative; overflow: hidden; background: var(--paper); }
.category-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(246,249,253,.96), rgba(246,249,253,.82)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  z-index: 0;
}
.hero-wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; padding-top: 72px; padding-bottom: 80px; align-items: center; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--subtle); margin-bottom: 22px; }
.breadcrumb a { color: var(--subtle); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb svg { width: 14px; height: 14px; }
.breadcrumb .current { color: var(--ink); font-weight: 600; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(18,168,153,.12); color: #0E8378;
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }
.hero-copy h1 { max-width: 620px; margin-bottom: 22px; }
.hero-copy .lead { max-width: 560px; font-size: 17px; color: #44536A; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-actions .btn:focus-visible,
.nav-toggle:focus-visible,
.cta-band a:focus-visible,
.site-footer a:focus-visible {
  outline: 3px solid rgba(47, 111, 237, .25); outline-offset: 3px; border-radius: 12px;
}

/* hero media */
.hero-visual { display: flex; justify-content: flex-end; align-items: center; }
.hero-card {
  width: min(420px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 12px 12px 16px;
  box-shadow: 0 20px 60px rgba(21,45,80,.12);
  transform: rotate(.5deg);
}
.hero-thumb { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 4 / 5; background: #EDF2F9; }
.hero-thumb img { width: 100%; height: 100%; object-fit: cover; }
.hero-thumb .dur {
  position: absolute; right: 12px; bottom: 12px;
  background: rgba(21,38,61,.75); color: #fff;
  font-size: 12px; font-weight: 500; padding: 3px 8px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.hero-thumb .live-tag {
  position: absolute; left: 12px; top: 12px;
  background: var(--amber); color: #6E3F00;
  font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px;
  box-shadow: 0 4px 12px rgba(242,169,59,.4);
}
.hero-card-footer { padding: 14px 6px 4px; }
.hero-card-footer strong { display: block; font-size: 17px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.hero-card-footer span { font-size: 13px; color: var(--subtle); }
.hero-stat-row { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 24px; }
.hero-stat-row .metric { font-size: 13px; color: var(--subtle); display: inline-flex; align-items: center; gap: 6px; }
.hero-stat-row .metric b { color: var(--brand-deep); font-weight: 700; font-size: 15px; }

@media (max-width: 980px) {
  .hero-wrap { grid-template-columns: 1fr; gap: 34px; padding-top: 50px; padding-bottom: 56px; }
  .hero-visual { justify-content: center; }
  .hero-card { width: min(360px, 100%); }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* sections */
.section { padding: 96px 0; }
.section-alt { background: #fff; }
.section-gap { padding: 110px 0; }
.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.tag-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(47,111,237,.1); color: var(--brand);
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 14px;
}
.tag-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--copy); font-size: 16px; max-width: 680px; }

/* split narrative */
.split-row { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split-row + .split-row { margin-top: 120px; }
.split-media { position: relative; }
.split-media img {
  width: 100%; aspect-ratio: 5 / 4; object-fit: cover;
  border-radius: 24px; box-shadow: 0 20px 50px rgba(21,45,80,.12);
}
.split-media figcaption {
  position: absolute; left: 18px; bottom: 18px;
  background: rgba(255,255,255,.9); backdrop-filter: blur(6px);
  padding: 8px 14px; border-radius: 999px; font-size: 13px;
  color: var(--ink); font-weight: 600;
  box-shadow: 0 8px 24px rgba(21,45,80,.14);
}
.split-content .tag-badge { margin-bottom: 16px; }
.split-content h2 { margin-bottom: 18px; }
.split-content p { margin-bottom: 20px; max-width: 560px; }
.check-list { list-style: none; padding: 0; margin: 24px 0; }
.check-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 9px 0; line-height: 1.6; color: #3A475E;
  font-size: 16px;
}
.check-list li svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.text-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand); font-weight: 600; font-size: 15px;
  transition: color .2s ease;
}
.text-link:hover { color: var(--brand-deep); }
.text-link svg { width: 16px; height: 16px; transition: transform .2s ease; }
.text-link:hover svg { transform: translateX(4px); }

@media (max-width: 900px) {
  .section { padding: 80px 0; }
  .section-gap { padding: 72px 0; }
  .split-row { grid-template-columns: 1fr; gap: 28px; margin-top: 40px; }
  .split-row + .split-row { margin-top: 64px; }
  .split-content { order: 2; }
  .split-row.reversed .split-content { order: 2; }
  .split-row.reversed .split-media { order: 1; }
}

/* bento */
.bento-area { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 170px; gap: 20px; }
.bento-card {
  position: relative;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}
.bento-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.bento-card .img-box { overflow: hidden; flex: 1; min-height: 0; background: #EAF1F8; }
.bento-card .img-box img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.bento-card:hover .img-box img { transform: scale(1.04); }
.bento-card .b-card-body { padding: 16px 18px 18px; background: #fff; }
.b-card-body strong { display: block; font-size: 17px; color: var(--ink); margin-bottom: 4px; line-height: 1.4; }
.b-card-body span { font-size: 13px; color: var(--subtle); }
.bento-card .overlay-body {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 34px 20px 18px;
  background: linear-gradient(180deg, rgba(16,35,61,0), rgba(16,35,61,.88));
  color: #fff;
}
.overlay-body strong { display: block; color: #fff; font-size: 20px; line-height: 1.35; margin-bottom: 4px; }
.overlay-body span { color: rgba(255,255,255,.82); font-size: 13px; display: block; }
.bento-chip {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  background: rgba(255,255,255,.9); color: var(--brand-deep);
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  box-shadow: 0 2px 10px rgba(21,45,80,.14);
}
.bento-a { grid-column: 1 / 3; grid-row: 1 / 3; }
.bento-b { grid-column: 3 / 5; grid-row: 1 / 2; }
.bento-b .img-box { flex: none; height: 150px; }
.bento-c { grid-column: 3 / 4; grid-row: 2 / 3; }
.bento-d { grid-column: 4 / 5; grid-row: 2 / 3; }
.bento-c .img-box, .bento-d .img-box { flex: 1; }

@media (max-width: 900px) {
  .bento-area { grid-template-columns: 1fr 1fr; grid-auto-rows: auto; }
  .bento-card { grid-column: auto !important; grid-row: auto !important; }
  .bento-a { grid-column: span 2 !important; }
  .bento-a .img-box { aspect-ratio: 16 / 10; height: auto; }
}
@media (max-width: 560px) {
  .bento-area { grid-template-columns: 1fr; }
  .bento-a { grid-column: span 1 !important; }
}

/* steps */
.step-section { background: #EAF2FB; }
.section-head .gold-dot { background: var(--amber); }
.step-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.step-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: 20px; padding: 30px 32px;
  box-shadow: 0 8px 24px rgba(21,45,80,.06);
  display: flex; gap: 20px; align-items: flex-start;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-num {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 16px;
  color: #fff; font-weight: 700; font-size: 18px;
  background: linear-gradient(145deg, #2F6FED, #1E4FBF);
  box-shadow: 0 8px 16px rgba(47,111,237,.28);
}
.step-card.green .step-num { background: linear-gradient(145deg, #12A899, #0B8277); box-shadow: 0 8px 16px rgba(18,168,153,.28); }
.step-card.amber .step-num { background: linear-gradient(145deg, #F2A93B, #E08A12); color: #4A2C00; box-shadow: 0 8px 16px rgba(242,169,59,.28); }
.step-copy strong { display: block; font-size: 20px; color: var(--ink); margin-bottom: 6px; }
.step-copy p { font-size: 15px; color: #4A576E; line-height: 1.7; }
.step-copy .tip { display: inline-block; margin-top: 8px; font-size: 13px; color: var(--brand-deep); background: rgba(47,111,237,.08); border-radius: 999px; padding: 3px 10px; }

@media (max-width: 900px) {
  .step-grid { grid-template-columns: 1fr; }
}

/* faq */
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  margin-bottom: 14px; box-shadow: 0 4px 16px rgba(21,45,80,.05);
  transition: border-color .25s ease, box-shadow .25s ease;
}
.faq-item:hover { border-color: #CFDDF2; box-shadow: var(--shadow-card); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  list-style: none; padding: 18px 24px; cursor: pointer;
  min-height: 58px; font-size: 16px; font-weight: 600; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .chev {
  flex-shrink: 0; width: 20px; height: 20px; color: var(--subtle);
  transition: transform .3s var(--ease);
}
.faq-item[open] .chev { transform: rotate(180deg); color: var(--brand); }
.faq-item .faq-body { padding: 0 24px 20px; font-size: 15px; line-height: 1.75; color: var(--copy); }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }

/* adjacent */
.adjacent-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #FDFEFF; }
.adjacent-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 0; }
.adjacent-inner .label { font-size: 14px; color: var(--subtle); }
.adj-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.adj-nav a {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 18px; font-size: 14px; font-weight: 600; color: #3A475E;
  background: #fff; transition: all .2s ease;
}
.adj-nav a:hover { border-color: var(--brand); color: var(--brand); box-shadow: 0 6px 16px rgba(47,111,237,.12); }
.adj-nav .active-chip { color: var(--brand); border-color: rgba(47,111,237,.35); background: rgba(47,111,237,.06); }
.adj-nav svg { width: 14px; height: 14px; }

/* cta */
.cta-band {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  padding: 64px 60px;
  background:
    linear-gradient(105deg, rgba(16,35,61,.96) 0%, rgba(30,79,191,.88) 50%, rgba(47,111,237,.92) 100%),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  margin-top: 56px;
}
.cta-copy { max-width: 620px; }
.cta-copy .light-badge {
  display: inline-block; background: rgba(255,255,255,.16); color: #DFE9FF;
  border-radius: 999px; font-size: 12px; padding: 5px 12px; margin-bottom: 14px;
  font-weight: 600;
}
.cta-copy h2 { color: #fff; font-size: 30px; margin-bottom: 12px; }
.cta-copy p { color: rgba(255,255,255,.82); font-size: 16px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; flex-shrink: 0; }
@media (max-width: 900px) {
  .cta-band { flex-direction: column; align-items: flex-start; padding: 40px 24px; }
  .cta-actions { width: 100%; flex-direction: column; }
  .cta-actions .btn { width: 100%; }
}

/* footer */
.site-footer { background: #10233D; color: rgba(255,255,255,.72); margin-top: 120px; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 52px; padding-top: 72px; padding-bottom: 56px;
}
.footer-logo { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.65); max-width: 320px; margin-top: 14px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li, .footer-col li a { font-size: 14px; line-height: 1.9; color: rgba(255,255,255,.68); transition: color .2s ease; }
.footer-col li a:hover { color: #9FC0FF; }
.footer-col ul li + li { margin-top: 4px; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0 26px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .site-footer { margin-top: 80px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand p { max-width: 100%; }
}

/* back to top */
.back-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 40;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid #D6E3F2;
  background: #fff; color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .3s var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: #F3F8FF; color: var(--brand-deep); }
.back-top svg { width: 18px; height: 18px; }

@media (max-width: 560px) {
  .hero-wrap { padding-top: 34px; padding-bottom: 44px; }
  .hero-actions .btn { width: 100%; }
  .hero-copy h1 { font-size: 30px; letter-spacing: 0; }
  .step-card { padding: 22px; }
  .faq-item summary { padding: 16px 18px; font-size: 15px; }
  .faq-item .faq-body { padding: 0 18px 18px; }
  .cta-copy h2 { font-size: 24px; }
}

/* roulang page: category3 */
:root {
    --bg: #F6F9FD;
    --surface: #FFFFFF;
    --brand: #2F6FED;
    --brand-deep: #1E4FBF;
    --accent: #12A899;
    --amber: #F2A93B;
    --red: #E2574C;
    --ink: #15263D;
    --subtle: #4E5C70;
    --mute: #7B899E;
    --line: #E4ECF5;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --shadow-card: 0 10px 30px rgba(21, 45, 80, 0.08);
    --shadow-hover: 0 18px 44px rgba(18, 42, 85, 0.13);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

  button,
  input,
  summary {
    font-family: inherit;
  }

  h1,
  h2,
  h3,
  h4,
  p,
  ul,
  figure {
    margin: 0;
    padding: 0;
  }

  ul {
    list-style: none;
  }

  :focus-visible {
    outline: 3px solid rgba(47, 111, 237, 0.2);
    outline-offset: 3px;
    border-radius: 8px;
  }

  .container {
    width: 100%;
    max-width: 1240px;
    margin-inline: auto;
    padding-inline: clamp(20px, 4vw, 32px);
  }

  .section {
    padding: clamp(64px, 8vw, 108px) 0;
  }

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

  .overline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--brand);
    text-transform: none;
  }

  .overline::before {
    content: "";
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
  }

  .section-title {
    max-width: 760px;
    font-size: clamp(28px, 4vw, 34px);
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
  }

  .section-lead {
    max-width: 760px;
    margin-top: 16px;
    color: var(--subtle);
    font-size: 16px;
    line-height: 1.8;
  }

  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: #FFFFFF;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 6px 20px rgba(21, 45, 80, 0.04);
  }

  .header-inner {
    min-height: 70px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    max-width: 1240px;
    margin-inline: auto;
    padding-inline: clamp(20px, 4vw, 32px);
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.2;
  }

  .brand .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 11px;
    background: var(--brand);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
  }

  .nav-shell {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-right: 14px;
  }

  .nav-links .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 16px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 500;
    color: var(--subtle);
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
  }

  .nav-links .nav-link:hover {
    color: var(--brand);
    background: #F0F6FF;
  }

  .nav-links .nav-link.active {
    color: var(--brand);
    background: #F0F6FF;
    font-weight: 600;
  }

  .nav-links .nav-link.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 3px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 20px;
    border-radius: var(--radius-pill);
    background: var(--brand);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.2s var(--ease), transform 0.2s var(--ease);
  }

  .nav-cta:hover {
    background: var(--brand-deep);
    transform: translateY(-1px);
  }

  .nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    color: var(--ink);
    cursor: pointer;
  }

  @media (max-width: 1023px) {
    .nav-toggle {
      display: inline-flex;
    }

    .nav-shell {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      align-items: stretch;
      flex-direction: column;
      gap: 6px;
      padding: 14px 20px 20px;
      background: #fff;
      border-bottom: 1px solid var(--line);
      box-shadow: 0 24px 40px rgba(21, 45, 80, 0.12);
    }

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

    .nav-links {
      flex-direction: column;
      align-items: stretch;
      margin-right: 0;
    }

    .nav-links .nav-link {
      justify-content: flex-start;
      border-radius: 12px;
    }

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

    .nav-cta {
      justify-content: center;
    }
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 26px;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.22s var(--ease);
  }

  .btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 10px 24px rgba(47, 111, 237, 0.24);
  }

  .btn-primary:hover {
    background: var(--brand-deep);
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(25, 66, 160, 0.24);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-ghost {
    background: #fff;
    color: var(--brand);
    border-color: #C9DDFA;
  }

  .btn-ghost:hover {
    background: rgba(47, 111, 237, 0.07);
    border-color: var(--brand);
    transform: translateY(-2px);
  }

  .btn-sm {
    min-height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    font-size: 14px;
  }

  /* Hero */
  .hero {
    position: relative;
    overflow: hidden;
    padding: clamp(60px, 7vw, 92px) 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center 30%;
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(246, 249, 253, 0.86);
  }

  .hero::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -80px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: rgba(47, 111, 237, 0.08);
    filter: blur(10px);
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: clamp(30px, 5vw, 72px);
  }

  .hero-copy {
    flex: 1 1 60%;
    max-width: 720px;
  }

  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
    font-size: 13px;
    color: var(--mute);
  }

  .breadcrumb a {
    color: var(--mute);
    transition: color 0.2s ease;
  }

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

  .hero h1 {
    font-size: clamp(34px, 5vw, 50px);
    line-height: 1.22;
    letter-spacing: -0.03em;
    font-weight: 800;
    color: var(--ink);
  }

  .hero h1 .brand-highlight {
    color: var(--brand);
  }

  .hero-desc {
    margin-top: 22px;
    max-width: 640px;
    font-size: 17px;
    line-height: 1.8;
    color: var(--subtle);
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
  }

  .hero-feature {
    flex-basis: 320px;
    max-width: 360px;
    flex-shrink: 1;
    border-radius: 24px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    overflow: hidden;
  }

  .hero-feature img {
    width: 100%;
    height: 260px;
    object-fit: cover;
  }

  .hero-feature-caption {
    padding: 16px 20px 20px;
  }

  .hero-feature-caption strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--ink);
  }

  .hero-feature-caption span {
    display: block;
    margin-top: 6px;
    font-size: 14px;
    color: var(--mute);
  }

  @media (max-width: 900px) {
    .hero-inner {
      flex-direction: column;
      align-items: flex-start;
    }

    .hero-feature {
      max-width: 420px;
      width: 100%;
    }

    .hero-feature img {
      height: 220px;
    }
  }

  /* Timeline */
  .timeline {
    position: relative;
    margin-top: 48px;
  }

  .step {
    position: relative;
    padding: 0 0 44px 68px;
  }

  .step:last-child {
    padding-bottom: 0;
  }

  .step::before {
    content: "";
    position: absolute;
    left: 23px;
    top: 36px;
    bottom: 0;
    width: 2px;
    background: #DCE8FB;
  }

  .step:last-child::before {
    display: none;
  }

  .step-node {
    position: absolute;
    left: 0;
    top: 2px;
    width: 48px;
    height: 48px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid #D4E3FB;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
    color: var(--brand);
    box-shadow: 0 6px 14px rgba(47, 111, 237, 0.1);
    z-index: 2;
  }

  .step-body {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: clamp(22px, 3vw, 30px);
    box-shadow: var(--shadow-card);
    transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
  }

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

  .step-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .time-pill {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: 999px;
    background: #EDF5FF;
    color: var(--brand);
    font-size: 13px;
    font-weight: 600;
  }

  .highlight-pill {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: 999px;
    background: #FEF6E9;
    color: #B8750C;
    font-size: 13px;
    font-weight: 600;
  }

  .step-body h3 {
    font-size: 21px;
    line-height: 1.4;
    font-weight: 700;
    color: var(--ink);
  }

  .step-body p {
    margin-top: 12px;
    font-size: 16px;
    line-height: 1.75;
    color: var(--subtle);
  }

  .step-tip {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 14px;
    line-height: 1.7;
    color: var(--mute);
  }

  .step-tip::before {
    content: "！";
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #FEF1F0;
    color: var(--red);
    font-size: 12px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  @media (max-width: 640px) {
    .step {
      padding: 0 0 40px 58px;
    }

    .step-node {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      font-size: 14px;
    }

    .step::before {
      left: 20px;
    }

    .step-body h3 {
      font-size: 18px;
    }
  }

  /* Accumulate split */
  .accumulate-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: center;
    gap: clamp(30px, 6vw, 80px);
  }

  .media-stack {
    display: grid;
    gap: 22px;
  }

  .media-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    background: #fff;
  }

  .media-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
  }

  .media-card figcaption {
    padding: 14px 18px;
    font-size: 14px;
    color: var(--subtle);
    line-height: 1.6;
  }

  @media (max-width: 860px) {
    .accumulate-grid {
      grid-template-columns: 1fr;
    }

    .media-stack {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 560px) {
    .media-stack {
      grid-template-columns: 1fr;
    }
  }

  .check-list {
    display: grid;
    gap: 14px;
    margin-top: 22px;
  }

  .check-list li {
    display: flex;
    gap: 10px;
    color: var(--subtle);
    font-size: 15px;
  }

  .check-list .check-icon {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    margin-top: 4px;
    border-radius: 50%;
    background: rgba(18, 168, 153, 0.1);
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Quote scroll */
  .quote-track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(300px, 340px);
    gap: 20px;
    overflow-x: auto;
    padding: 8px 2px 22px;
    scroll-snap-type: x proximity;
  }

  .quote-card {
    margin: 0;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    scroll-snap-align: start;
  }

  .quote-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
  }

  .quote-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #E9F2FF;
    color: var(--brand);
    font-size: 15px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .quote-head strong {
    display: block;
    font-size: 15px;
    color: var(--ink);
  }

  .quote-head time {
    display: block;
    font-size: 13px;
    color: var(--mute);
  }

  .quote-card blockquote {
    margin: 0;
    color: var(--subtle);
    font-size: 15px;
    line-height: 1.8;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 860px;
    display: grid;
    gap: 14px;
    margin: 40px auto 0;
  }

  .faq-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 6px 18px rgba(21, 45, 80, 0.04);
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .faq-card[open] {
    border-color: #C9DDFA;
    box-shadow: var(--shadow-card);
  }

  .faq-card summary {
    position: relative;
    list-style: none;
    padding: 20px 52px 20px 24px;
    min-height: 56px;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
  }

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

  .faq-card summary::after {
    content: "";
    position: absolute;
    right: 22px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--mute);
    border-bottom: 2px solid var(--mute);
    transform: translateY(-70%) rotate(45deg);
    transition: transform .25s var(--ease);
  }

  .faq-card[open] summary::after {
    transform: translateY(-30%) rotate(225deg);
    border-color: var(--brand);
  }

  .faq-answer {
    padding: 4px 24px 22px;
    border-top: 1px solid var(--line);
    color: var(--subtle);
    font-size: 15px;
    line-height: 1.75;
  }

  .faq-answer p {
    margin-top: 16px;
  }

  /* CTA */
  .cta-band {
    position: relative;
    overflow: hidden;
    background: var(--ink);
    background-image: linear-gradient(105deg, rgba(21, 38, 61, 0.98) 0%, rgba(21, 38, 61, 0.85) 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    border-radius: 28px;
    padding: clamp(34px, 6vw, 64px);
    color: #fff;
  }

  .cta-band h2 {
    max-width: 620px;
    font-size: clamp(26px, 4vw, 36px);
    line-height: 1.35;
    font-weight: 700;
  }

  .cta-band p {
    max-width: 620px;
    margin-top: 16px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.8;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
  }

  .cta-band .btn-primary {
    background: #fff;
    color: var(--ink);
    box-shadow: none;
  }

  .cta-band .btn-primary:hover {
    background: #F0F6FF;
  }

  .cta-band .btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.45);
  }

  .cta-band .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #fff;
  }

  @media (max-width: 600px) {
    .cta-band {
      border-radius: 20px;
    }

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

  /* Footer */
  .site-footer {
    background: #10233D;
    color: #C7D2E0;
    margin-top: clamp(72px, 9vw, 120px);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 34px;
    padding-top: 64px;
    padding-bottom: 48px;
  }

  .footer-brand .logo {
    color: #fff;
  }

  .footer-brand p {
    margin-top: 20px;
    max-width: 360px;
    font-size: 14px;
    line-height: 1.8;
    color: #9FB4CE;
  }

  .footer-col h4 {
    margin-bottom: 20px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
  }

  .footer-col ul {
    display: grid;
    gap: 10px;
  }

  .footer-col a {
    font-size: 14px;
    color: #B8C7D9;
    transition: color 0.2s ease;
  }

  .footer-col a:hover {
    color: #3C92FF;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 13px;
    color: #8DA1BC;
  }

  @media (max-width: 920px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      padding-top: 48px;
    }
  }

  @media (max-width: 560px) {
    .footer-grid {
      grid-template-columns: 1fr;
    }

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  /* To top */
  .to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 60;
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: #fff;
    color: var(--brand);
    box-shadow: var(--shadow-card);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
  }

  .to-top.visible {
    display: inline-flex;
  }

  .to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
  }

/* roulang page: category4 */
:root {
            --bg: #F6F9FD;
            --surface: #FFFFFF;
            --soft: #EEF4FB;
            --brand: #2F6FED;
            --brand-dark: #1E4FBF;
            --brand-soft: #E4EDFD;
            --ink: #15263D;
            --body: #4E5C70;
            --muted: #7B899E;
            --line: #E4ECF5;
            --accent: #12A899;
            --accent-soft: #DFF6F2;
            --amber: #F2A93B;
            --amber-soft: #FDF1DC;
            --red: #E2574C;
            --radius-sm: 12px;
            --radius: 18px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(21, 45, 80, 0.08);
            --shadow-hover: 0 18px 44px rgba(18, 42, 85, 0.13);
            --ease: cubic-bezier(0.22, 1, 0.36, 1);
            --transition: all 200ms var(--ease);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--body);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        figure {
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4 {
            color: var(--ink);
            line-height: 1.3;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        button,
        input,
        textarea {
            font: inherit;
            border: 0;
            background: none;
        }

        .container {
            width: min(1240px, 100%);
            margin-inline: auto;
            padding-inline: 32px;
        }

        .section {
            padding-block: 104px;
        }

        .section-caption {
            color: var(--brand);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.12em;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .section-caption::before {
            content: "";
            width: 18px;
            height: 2px;
            border-radius: 99px;
            background: var(--brand);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }

        .section-lead {
            font-size: 16px;
            line-height: 1.9;
            max-width: 720px;
            margin-top: 18px;
            color: var(--body);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            padding: 14px 30px;
            font-size: 16px;
            font-weight: 600;
            min-height: 50px;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn svg {
            width: 18px;
            height: 18px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 8px 20px rgba(47, 111, 237, 0.26);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(30, 79, 191, 0.30);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-secondary {
            background: var(--surface);
            color: var(--brand);
            border-color: #C9DCFB;
        }

        .btn-secondary:hover {
            background: #F1F6FF;
            border-color: var(--brand);
        }

        .btn-sm {
            min-height: 42px;
            padding: 10px 22px;
            font-size: 15px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: 0.02em;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--brand);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 16px rgba(47, 111, 237, 0.25);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: #FFFFFF;
            border-bottom: 1px solid var(--line);
            box-shadow: 0 6px 18px rgba(21, 45, 80, 0.04);
        }

        .header-flex {
            height: 72px;
            display: flex;
            align-items: center;
            gap: 24px;
            position: relative;
        }

        .nav-links {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 2px;
            flex: 1;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            min-height: 40px;
            padding: 0 16px;
            border-radius: 999px;
            color: var(--body);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            background: var(--soft);
            color: var(--brand);
        }

        .nav-link.active {
            background: var(--brand-soft);
            color: var(--brand);
            font-weight: 700;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-toggle,
        .nav-burger {
            display: none;
        }

        .nav-burger {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--soft);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            margin-left: auto;
        }

        .nav-burger span {
            width: 18px;
            height: 2px;
            background: var(--ink);
            border-radius: 99px;
            transition: var(--transition);
        }

        @media (max-width: 1023.98px) {
            .section {
                padding-block: 72px;
            }

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

            .header-actions .btn {
                display: none;
            }

            .nav-burger {
                display: inline-flex;
            }

            .header-flex {
                height: 64px;
            }

            .nav-links {
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                background: #fff;
                border: 1px solid var(--line);
                border-radius: 18px;
                box-shadow: 0 20px 50px rgba(21, 45, 80, 0.16);
                display: flex;
                align-items: stretch;
                flex-direction: column;
                gap: 4px;
                justify-content: flex-start;
                padding: 12px;
                transform: translateY(-10px);
                opacity: 0;
                visibility: hidden;
                pointer-events: none;
                transition: var(--transition);
            }

            .nav-link {
                justify-content: flex-start;
                padding: 12px 18px;
                border-radius: 12px;
            }

            .nav-toggle:checked~.header-flex .nav-links {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-inline: 20px;
            }

            .section {
                padding-block: 64px;
            }

            .btn {
                width: 100%;
            }
        }

        .banner-hero {
            position: relative;
            padding: 116px 0 100px;
            overflow: hidden;
            background-image: linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(237, 245, 255, 0.92) 42%, rgba(246, 249, 253, 0.88) 100%), url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 42px;
        }

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

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

        .breadcrumb .current {
            color: var(--brand);
            font-weight: 600;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-soft);
            color: var(--brand);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-eyebrow::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        .banner-hero h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 700;
            max-width: 760px;
        }

        .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--body);
            max-width: 660px;
            margin-top: 20px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-facts {
            display: flex;
            margin-top: 44px;
            gap: 32px;
            flex-wrap: wrap;
            padding: 22px 26px;
            background: rgba(255, 255, 255, 0.88);
            border: 1px solid rgba(222, 235, 248, 0.9);
            border-radius: 18px;
            box-shadow: var(--shadow);
            max-width: 760px;
        }

        .hero-facts li {
            position: relative;
            padding-left: 18px;
            color: var(--body);
            font-size: 14px;
        }

        .hero-facts li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 11px;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--amber);
        }

        @media (max-width: 1023.98px) {
            .banner-hero {
                padding: 88px 0 76px;
            }

            .banner-hero h1 {
                font-size: 34px;
            }

            .hero-desc {
                font-size: 16px;
            }
        }

        @media (max-width: 640px) {
            .banner-hero {
                padding: 70px 0 58px;
            }

            .banner-hero h1 {
                font-size: 28px;
            }

            .hero-actions {
                flex-direction: column;
            }
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--soft);
            color: var(--body);
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            line-height: 1.6;
            white-space: nowrap;
            border: 1px solid transparent;
            transition: var(--transition);
        }

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

        .tag-green {
            background: var(--accent-soft);
            color: #0A7A70;
        }

        .tag-amber {
            background: var(--amber-soft);
            color: #B8730F;
        }

        .tag-red {
            background: #FDEDEB;
            color: var(--red);
        }

        .bento-wrap {
            display: grid;
            grid-template-columns: repeat(12, minmax(0, 1fr));
            gap: 24px;
        }

        .bento-card {
            border-radius: var(--radius);
            background: var(--surface);
            box-shadow: var(--shadow);
            border: 1px solid #E8EEF6;
            padding: 28px;
            min-height: 190px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .bento-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .bento-1 {
            grid-column: span 7;
            min-height: 360px;
            overflow: hidden;
            flex-direction: row;
            align-items: stretch;
            padding: 0;
        }

        .bento-main {
            flex: 1 1 58%;
            padding: 30px 0 30px 30px;
            display: flex;
            flex-direction: column;
        }

        .bento-visual {
            flex: 1 1 42%;
            background: var(--brand-soft);
            position: relative;
            margin-left: 20px;
        }

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

        .card-title {
            font-size: 20px;
            font-weight: 700;
            margin-top: 10px;
            line-height: 1.4;
        }

        .card-sub {
            font-size: 14px;
            margin-top: 8px;
            color: var(--muted);
            line-height: 1.7;
        }

        .score-row {
            display: flex;
            align-items: baseline;
            gap: 10px;
            margin-top: 22px;
        }

        .score-num {
            font-size: 46px;
            line-height: 1;
            font-weight: 700;
            color: var(--ink);
        }

        .score-total {
            color: var(--muted);
            font-size: 14px;
        }

        .stars {
            display: inline-flex;
            gap: 2px;
            color: #F5B94A;
            margin-left: 6px;
        }

        .heatline {
            margin-top: 24px;
        }

        .heatline-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .heatline-item span {
            width: 92px;
            font-size: 13px;
            color: var(--body);
            flex-shrink: 0;
        }

        .heatline-track {
            flex: 1;
            height: 8px;
            border-radius: 99px;
            background: var(--soft);
            overflow: hidden;
        }

        .heatline-fill {
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--brand), #4C87F5);
        }

        .heatline-item em {
            width: 44px;
            font-style: normal;
            font-weight: 700;
            font-size: 13px;
            color: var(--ink);
            text-align: right;
        }

        .score-footer {
            margin-top: auto;
            padding-top: 14px;
            color: var(--muted);
            font-size: 13px;
        }

        .bento-2 {
            grid-column: span 5;
            min-height: 360px;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: auto;
            padding-top: 24px;
        }

        .tag-list .tag-item {
            background: var(--soft);
            border-radius: 999px;
            padding: 6px 15px;
            font-size: 13px;
            color: var(--body);
            border: 1px solid #E3ECF6;
        }

        .tag-list .tag-item strong {
            color: var(--ink);
            font-weight: 700;
        }

        .bento-3 {
            grid-column: span 4;
            background: #fffaf2;
        }

        .mini-list {
            margin-top: auto;
            padding-top: 18px;
            display: grid;
            gap: 10px;
        }

        .mini-row {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 12px;
            border: 1px solid #F0E4D2;
            border-radius: 14px;
            background: #fff;
        }

        .mini-row .rank {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--amber-soft);
            color: #B8730F;
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mini-row p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--body);
        }

        .bento-4 {
            grid-column: span 8;
            min-height: 190px;
        }

        .quote-idea {
            font-size: 18px;
            line-height: 1.8;
            color: var(--ink);
            margin-top: 18px;
            max-width: 96%;
        }

        .quote-idea strong {
            color: var(--brand);
        }

        .bento-5 {
            grid-column: span 4;
            background: #EFF6FF;
        }

        .avoid-list {
            margin-top: auto;
            padding-top: 18px;
        }

        .avoid-list li {
            display: flex;
            gap: 10px;
            font-size: 15px;
            line-height: 1.7;
            padding: 10px 0;
            border-bottom: 1px dashed #D5E3FA;
            color: var(--body);
        }

        .avoid-list li:last-child {
            border-bottom: 0;
        }

        .avoid-list li::before {
            content: "!";
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: #FBDDDB;
            color: var(--red);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 3px;
        }

        @media (max-width: 1023.98px) {
            .bento-1,
            .bento-2,
            .bento-3,
            .bento-4,
            .bento-5 {
                grid-column: span 12;
            }

            .bento-1 {
                min-height: 0;
                flex-direction: column;
            }

            .bento-visual {
                min-height: 260px;
                margin: 0;
            }

            .bento-main {
                padding: 26px;
            }
        }

        @media (max-width: 640px) {
            .bento-card {
                padding: 22px;
                border-radius: 16px;
            }
        }

        .split-block {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            align-items: center;
        }

        .split-media {
            position: relative;
        }

        .split-media .photo-main {
            width: 100%;
            aspect-ratio: 4 / 5;
            object-fit: cover;
            border-radius: 22px;
            box-shadow: var(--shadow-hover);
        }

        .split-media::after {
            content: "";
            position: absolute;
            right: -14px;
            bottom: -14px;
            width: 58%;
            height: 58%;
            border: 2px solid var(--brand);
            border-radius: 22px;
            opacity: 0.14;
            z-index: -1;
        }

        .photo-caption {
            margin-top: 14px;
            color: var(--muted);
            font-size: 13px;
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .photo-caption::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .side-note-list {
            display: grid;
            gap: 24px;
            margin-top: 28px;
        }

        .note-item {
            display: grid;
            grid-template-columns: 76px 1fr;
            gap: 20px;
            align-items: start;
            padding: 20px 22px;
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid #E8EEF6;
            transition: var(--transition);
        }

        .note-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .note-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-soft);
            line-height: 1.2;
            letter-spacing: -0.04em;
        }

        .note-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .note-item p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--body);
        }

        @media (max-width: 1023.98px) {
            .split-block {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .split-media {
                max-width: 480px;
            }
        }

        @media (max-width: 640px) {
            .note-item {
                grid-template-columns: 1fr;
                gap: 6px;
                padding: 18px;
            }

            .note-num {
                font-size: 24px;
            }
        }

        .review-person {
            background: linear-gradient(180deg, #FFFFFF 0%, #F1F6FC 100%);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .person-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 60px;
            align-items: center;
        }

        .person-quote blockquote {
            margin: 28px 0 26px;
            font-size: 24px;
            line-height: 1.75;
            color: var(--ink);
            font-weight: 600;
            position: relative;
            padding-left: 28px;
        }

        .person-quote blockquote::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            width: 4px;
            height: 68%;
            border-radius: 99px;
            background: var(--brand);
        }

        .person-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-soft);
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .person-meta .name {
            color: var(--ink);
            font-weight: 700;
            font-size: 15px;
        }

        .person-meta .time {
            color: var(--muted);
            font-size: 13px;
        }

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

        .member-card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 30px 24px;
            border: 1px solid #E8EEF6;
            text-align: left;
            display: flex;
            gap: 24px;
            align-items: center;
            flex-wrap: wrap;
            max-width: 440px;
            margin-left: auto;
        }

        .member-card img {
            width: 164px;
            height: 176px;
            object-fit: cover;
            border-radius: 18px;
        }

        .member-text h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .member-text p {
            font-size: 14px;
            color: var(--body);
            margin-bottom: 10px;
        }

        .count-badge {
            background: var(--amber-soft);
            color: #B8730F;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        @media (max-width: 1023.98px) {
            .person-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .person-quote blockquote {
                font-size: 20px;
            }

            .member-card {
                max-width: 500px;
                margin: 0 auto;
            }
        }

        @media (max-width: 640px) {
            .person-quote blockquote {
                font-size: 18px;
            }

            .member-card {
                padding: 18px;
                flex-direction: column;
                align-items: flex-start;
            }

            .member-card img {
                width: 100%;
                height: 200px;
            }
        }

        .flow-section {
            background: #fff;
        }

        .flow-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 60px;
            align-items: center;
        }

        .flow-content {
            padding: 32px;
            background: var(--soft);
            border-radius: 24px;
            border: 1px solid #DCE9F8;
        }

        .flow-content ol {
            display: grid;
            gap: 0;
            counter-reset: flow;
        }

        .flow-content li {
            position: relative;
            padding: 18px 0 18px 72px;
            border-bottom: 1px dashed #D4E0F0;
            counter-increment: flow;
        }

        .flow-content li:last-child {
            border-bottom: 0;
        }

        .flow-content li::before {
            content: counter(flow, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: 20px;
            width: 46px;
            height: 46px;
            border-radius: 16px;
            background: #fff;
            color: var(--brand);
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(47, 111, 237, 0.12);
            border: 1px solid #D4E1F4;
        }

        .flow-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .flow-content p {
            font-size: 15px;
            color: var(--body);
            line-height: 1.75;
        }

        .flow-image {
            position: relative;
        }

        .flow-image img {
            width: 100%;
            aspect-ratio: 5 / 6;
            object-fit: cover;
            border-radius: 22px;
            box-shadow: var(--shadow-hover);
        }

        .flow-tip {
            position: absolute;
            right: 16px;
            bottom: 16px;
            background: rgba(255, 255, 255, 0.94);
            border-radius: 18px;
            padding: 18px 20px;
            max-width: 290px;
            box-shadow: var(--shadow);
            border: 1px solid #E8EEF6;
        }

        .flow-tip p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--body);
        }

        .flow-tip strong {
            color: var(--brand);
        }

        @media (max-width: 1023.98px) {
            .flow-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

        .faq-wrap {
            max-width: 880px;
            margin-inline: auto;
            margin-top: 44px;
            display: grid;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid #E8EEF6;
            border-radius: 18px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            overflow: hidden;
        }

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

        .faq-item summary {
            min-height: 68px;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            cursor: pointer;
            padding: 16px 26px;
            font-weight: 600;
            font-size: 17px;
            color: var(--ink);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: var(--brand);
            stroke-width: 2.4;
            stroke-linecap: round;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(180deg);
            background: var(--brand-soft);
        }

        .faq-content {
            padding: 4px 26px 22px;
            color: var(--body);
            font-size: 15px;
            line-height: 1.8;
        }

        .cta-area {
            background: #10233D;
            color: #ffffff;
            border-radius: 28px;
            padding: 54px 54px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-area::before {
            content: "";
            position: absolute;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: #2F6FED;
            opacity: 0.18;
            right: 10%;
            top: -120px;
        }

        .cta-area::after {
            content: "";
            position: absolute;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            border: 1px solid rgba(242, 169, 59, 0.38);
            right: -26px;
            bottom: -26px;
        }

        .cta-area h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-area p {
            color: rgba(255, 255, 255, 0.76);
            font-size: 17px;
            max-width: 560px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-actions .btn-white {
            border-color: #ffffff;
            color: #ffffff;
            background: transparent;
        }

        .cta-actions .btn-white:hover {
            background: #ffffff;
            color: #10233D;
        }

        @media (max-width: 768px) {
            .cta-area {
                padding: 36px 24px;
                border-radius: 20px;
            }

            .cta-area h2 {
                font-size: 26px;
            }

            .cta-actions {
                width: 100%;
            }
        }

        .site-footer {
            background: #10233D;
            color: rgba(255, 255, 255, 0.76);
            padding: 68px 0 30px;
            margin-top: 110px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.7fr 0.7fr 0.9fr;
            gap: 48px;
            padding-bottom: 46px;
        }

        .footer-logo {
            color: #ffffff;
            font-size: 21px;
        }

        .footer-logo .logo-mark {
            background: #2F6FED;
            color: #fff;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.58);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul {
            display: grid;
            gap: 10px;
        }

        .footer-col a {
            color: rgba(255, 255, 255, 0.66);
            font-size: 14px;
            line-height: 1.6;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #B9D4FF;
        }

        .footer-col li {
            color: rgba(255, 255, 255, 0.66);
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-bottom {
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.48);
            font-size: 13px;
        }

        @media (max-width: 1023.98px) {
            .footer-grid {
                grid-template-columns: 1.2fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 640px) {
            .site-footer {
                padding-top: 48px;
                margin-top: 72px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
            }
        }

        .back-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: #ffffff;
            color: var(--brand);
            border: 1px solid #D5E0EB;
            box-shadow: var(--shadow);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 40;
            transition: var(--transition);
            font-size: 20px;
        }

        .back-top:hover {
            background: var(--brand);
            color: #ffffff;
            transform: translateY(-3px);
        }

        @media (max-width: 640px) {
            .back-top {
                width: 42px;
                height: 42px;
                right: 16px;
                bottom: 16px;
            }
        }

        .star svg {
            width: 15px;
            height: 15px;
            fill: currentColor;
        }