/* roulang page: index */
:root {
            --primary: #0F5C4C;
            --primary-light: #34A383;
            --primary-dark: #0B463A;
            --primary-darker: #092F28;
            --accent: #FF6B45;
            --accent-hover: #E9542F;
            --accent-active: #D64A24;
            --bg-body: #FAF8F4;
            --bg-white: #FFFFFF;
            --bg-warm: #F2EEE7;
            --bg-dark: #0E3B31;
            --text-main: #12201C;
            --text-secondary: #4A5A55;
            --text-muted: #7A8883;
            --border: #E7E2D8;
            --radius-card: 16px;
            --radius-large: 20px;
            --radius-btn: 50px;
            --radius-badge: 8px;
            --radius-input: 10px;
            --shadow-card: 0 2px 12px rgba(18, 32, 28, .06);
            --shadow-hover: 0 10px 30px rgba(18, 32, 28, .12);
            --shadow-btn: 0 4px 14px rgba(15, 92, 76, .18);
            --shadow-float: 0 12px 32px rgba(18, 32, 28, .18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
            --bs-body-font-family: var(--font-sans);
            --bs-body-color: var(--text-main);
            --bs-body-bg: var(--bg-body);
            --bs-link-color: var(--primary);
            --bs-link-hover-color: var(--primary-dark);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .3s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        ::selection {
            background: rgba(52, 163, 131, .2);
        }
        .container {
            max-width: 1140px;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: .75rem 1.8rem;
            transition: all .3s ease;
            letter-spacing: .02em;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-primary {
            --bs-btn-bg: var(--primary);
            --bs-btn-border-color: var(--primary);
            --bs-btn-hover-bg: var(--primary-dark);
            --bs-btn-hover-border-color: var(--primary-dark);
            --bs-btn-active-bg: var(--primary-darker);
            --bs-btn-active-border-color: var(--primary-darker);
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            --bs-btn-active-color: #fff;
            --bs-btn-disabled-bg: #C9CFCC;
            --bs-btn-disabled-border-color: #C9CFCC;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 20px rgba(15, 92, 76, .28);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            box-shadow: 0 2px 10px rgba(15, 92, 76, .2);
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 69, .25);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 107, 69, .4);
            transform: translateY(-2px);
        }
        .btn-accent:active {
            background: var(--accent-active);
            border-color: var(--accent-active);
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 107, 69, .3);
        }
        .btn-outline-light {
            border: 1.5px solid rgba(255, 255, 255, .6);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }
        .btn-outline-light:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-outline-primary {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline-primary:hover {
            background: rgba(15, 92, 76, .06);
            border-color: var(--primary);
            border-width: 2px;
            color: var(--primary);
        }
        .btn-outline-primary:active {
            background: rgba(15, 92, 76, .12);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            min-height: 72px;
            transition: all .35s ease;
            background: transparent;
        }
        .site-header.scrolled {
            background: rgba(250, 248, 244, .92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            box-shadow: 0 2px 16px rgba(18, 32, 28, .08);
            border-bottom: 1px solid rgba(231, 226, 216, .6);
        }
        .site-header .navbar {
            min-height: 72px;
            padding: .5rem 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: .02em;
            line-height: 1;
        }
        .site-header.scrolled .navbar-brand {
            color: var(--text-main);
        }
        .navbar-brand:hover {
            color: #fff;
        }
        .site-header.scrolled .navbar-brand:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, #34A383, #0F5C4C);
            color: #fff;
            font-size: 1.05rem;
            box-shadow: 0 4px 14px rgba(15, 92, 76, .3);
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-size: .9375rem;
            font-weight: 500;
            color: rgba(255, 255, 255, .85);
            padding: .6rem 1.1rem;
            position: relative;
            transition: color .3s;
            border-radius: 8px;
        }
        .site-header.scrolled .navbar-nav .nav-link {
            color: var(--text-main);
        }
        .navbar-nav .nav-link:hover {
            color: var(--accent);
        }
        .navbar-nav .nav-link.active {
            font-weight: 700;
            color: #fff;
        }
        .site-header.scrolled .navbar-nav .nav-link.active {
            color: var(--primary);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1.1rem;
            right: 1.1rem;
            bottom: -2px;
            height: 3px;
            border-radius: 3px;
            background: #34A383;
        }
        .site-header.scrolled .navbar-nav .nav-link.active::after {
            background: var(--primary);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: .75rem;
        }
        .nav-cta .btn {
            min-width: 118px;
            font-weight: 600;
            font-size: .9rem;
            padding: .55rem 1.2rem;
        }
        .navbar-toggler {
            border: none;
            padding: .25rem .4rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .navbar-toggler-icon {
            background-image: none;
            position: relative;
            width: 24px;
            height: 18px;
            display: inline-block;
        }
        .navbar-toggler-icon::before,
        .navbar-toggler-icon::after,
        .navbar-toggler-icon span {
            content: '';
            position: absolute;
            left: 0;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transition: transform .3s, top .3s, opacity .3s;
        }
        .navbar-toggler-icon::before {
            top: 0;
        }
        .navbar-toggler-icon::after {
            top: 8px;
        }
        .navbar-toggler-icon span {
            top: 16px;
        }
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
            top: 8px;
            transform: rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span {
            top: 8px;
            transform: rotate(-45deg);
        }

        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: linear-gradient(135deg, #0F5C4C 0%, #1D8269 100%);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .28;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(80deg, rgba(15, 92, 76, .92) 20%, rgba(29, 130, 105, .78) 80%);
            z-index: 1;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image: repeating-linear-gradient(80deg, transparent, transparent 42px, rgba(255, 255, 255, .04) 42px, rgba(255, 255, 255, .04) 43px);
            pointer-events: none;
        }
        .hero-container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 3.5rem;
        }
        .hero-content {
            max-width: 580px;
        }
        .hero-content h1 {
            font-size: clamp(2.1rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 1.4rem;
            letter-spacing: .02em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, .12);
        }
        .hero-sub {
            font-size: 1.0625rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 2rem;
            max-width: 500px;
        }
        .hero-btns {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2.2rem;
        }
        .hero-btns .btn {
            min-width: 140px;
            padding: .8rem 2rem;
        }
        .hero-tags {
            display: flex;
            gap: .75rem;
            flex-wrap: wrap;
        }
        .hero-tags span {
            padding: .3rem .8rem;
            border-radius: 50px;
            background: rgba(255, 255, 255, .12);
            color: rgba(255, 255, 255, .92);
            font-size: .8125rem;
            border: 1px solid rgba(255, 255, 255, .18);
            backdrop-filter: blur(4px);
        }
        .floating-card {
            width: 320px;
            background: #fff;
            border-radius: 20px;
            padding: 1.6rem;
            box-shadow: var(--shadow-float);
            border: 2px solid rgba(52, 163, 131, .25);
            position: relative;
            transform: rotate(1.5deg);
        }
        .fc-header {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-weight: 700;
            font-size: .9375rem;
            color: var(--text-main);
            margin-bottom: 1.2rem;
        }
        .fc-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 0 3px rgba(52, 163, 131, .2);
        }
        .fc-status {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: .875rem;
            color: var(--text-secondary);
            background: var(--bg-warm);
            padding: .6rem 1rem;
            border-radius: 12px;
            margin-bottom: 1.2rem;
        }
        .status-pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary-light);
            position: relative;
        }
        .status-pulse::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid var(--primary-light);
            animation: pulse 1.8s infinite;
        }
        @keyframes pulse {
            0% {
                transform: scale(.6);
                opacity: .8;
            }
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }
        .fc-stats {
            display: flex;
            gap: 1rem;
            margin-bottom: 1.2rem;
        }
        .fc-stats>div {
            flex: 1;
            background: var(--bg-body);
            border-radius: 12px;
            padding: .75rem;
            text-align: center;
        }
        .fc-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin: 0;
        }
        .fc-stats span {
            font-size: .75rem;
            color: var(--text-muted);
            display: block;
        }

        .brand-bar {
            background: linear-gradient(60deg, var(--primary) 0%, #1D8269 70%, var(--accent) 180%);
            padding: 2.5rem 0;
            color: #fff;
        }
        .brand-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .brand-slogan {
            font-size: 1.375rem;
            font-weight: 700;
            margin: 0;
            max-width: 420px;
            line-height: 1.5;
        }
        .brand-slogan small {
            display: block;
            font-size: .875rem;
            font-weight: 400;
            color: rgba(255, 255, 255, .7);
            margin-top: .5rem;
        }
        .brand-points {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
        }
        .brand-point {
            text-align: center;
        }
        .bp-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            margin: 0 auto .5rem;
        }
        .brand-point p {
            font-size: .8125rem;
            color: rgba(255, 255, 255, .8);
            margin: 0;
            white-space: nowrap;
        }

        .section-padding {
            padding: 5rem 0;
        }
        .section-heading {
            margin-bottom: 3rem;
        }
        .section-heading .heading-tag {
            display: inline-block;
            font-size: .875rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: .08em;
            padding: 0 0 .5rem;
            position: relative;
        }
        .section-heading .heading-tag::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 14px;
            background: var(--primary);
            border-radius: 2px;
            margin-right: .6rem;
            vertical-align: -2px;
        }
        .section-heading h2 {
            font-size: clamp(1.4rem, 2.2vw, 1.9rem);
            font-weight: 700;
            color: var(--text-main);
            margin: .5rem 0 0;
            line-height: 1.4;
        }
        .section-heading .section-desc {
            color: var(--text-muted);
            margin-top: .75rem;
            max-width: 560px;
            font-size: .9375rem;
        }

        .story-section {
            background: var(--bg-body);
        }
        .story-media {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
        }
        .story-media img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }
        .story-badge {
            position: absolute;
            bottom: 1rem;
            left: 1rem;
            background: rgba(255, 255, 255, .95);
            padding: .6rem 1.2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: .875rem;
            box-shadow: var(--shadow-card);
            color: var(--primary);
            backdrop-filter: blur(4px);
        }
        .story-body p {
            color: var(--text-secondary);
            margin-bottom: 1.2rem;
            font-size: .9375rem;
        }
        .story-points {
            display: flex;
            gap: .75rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }
        .point-item {
            display: flex;
            align-items: center;
            gap: .5rem;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: .5rem 1.2rem;
            font-weight: 600;
            font-size: .875rem;
            box-shadow: var(--shadow-card);
        }
        .point-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(52, 163, 131, .12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .8rem;
            flex-shrink: 0;
        }

        .news-section {
            background: var(--bg-white);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 860px;
            margin: 0 auto;
        }
        .news-card {
            position: relative;
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1rem;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(52, 163, 131, .4);
            transform: translateY(-3px);
        }
        .news-card-link {
            position: absolute;
            inset: 0;
            z-index: 2;
            border-radius: var(--radius-card);
        }
        .news-thumb {
            flex-shrink: 0;
            width: 120px;
            height: 84px;
            border-radius: 14px;
            overflow: hidden;
            background: var(--bg-warm);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
            display: block;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.08);
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            margin-bottom: .35rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: var(--text-main);
            line-height: 1.5;
        }
        .news-body p {
            font-size: .9rem;
            color: var(--text-muted);
            margin-bottom: .5rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.5;
        }
        .news-meta {
            display: flex;
            gap: .75rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .news-tag {
            display: inline-block;
            padding: .2rem .7rem;
            border-radius: 6px;
            background: #E2F1ED;
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 500;
        }
        .news-date {
            font-size: .8125rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }
        .news-arrow {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-warm);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .9rem;
            transition: all .3s;
            position: relative;
            z-index: 3;
        }
        .news-card:hover .news-arrow {
            background: var(--primary);
            color: #fff;
        }
        .news-empty {
            max-width: 720px;
            margin: 0 auto;
            border: 2px dashed var(--border);
            border-radius: var(--radius-card);
            height: 180px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            gap: .5rem;
            background: var(--bg-body);
        }
        .empty-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-muted);
        }

        .featured-section {
            background: var(--bg-warm);
        }
        .featured-card {
            background: #fff;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: all .35s ease;
            height: 100%;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(52, 163, 131, .4);
            transform: translateY(-4px);
        }
        .featured-large .featured-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .featured-large .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
            display: block;
        }
        .featured-large:hover .featured-img img {
            transform: scale(1.04);
        }
        .featured-label {
            position: absolute;
            top: 1rem;
            left: 1rem;
            padding: .35rem .9rem;
            border-radius: 50px;
            background: rgba(255, 255, 255, .94);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 700;
            backdrop-filter: blur(4px);
        }
        .featured-content {
            padding: 1.5rem;
        }
        .featured-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: .6rem;
            color: var(--text-main);
            line-height: 1.4;
        }
        .featured-content p {
            color: var(--text-secondary);
            font-size: .9375rem;
            margin-bottom: 1rem;
            line-height: 1.7;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-weight: 600;
            font-size: .875rem;
            color: var(--primary);
            transition: gap .3s;
        }
        .link-arrow:hover {
            color: var(--accent);
            gap: .7rem;
        }
        .featured-small {
            display: flex;
            gap: 1rem;
            padding: 1.5rem;
            align-items: flex-start;
            background: #fff;
        }
        .fs-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(52, 163, 131, .15), rgba(52, 163, 131, .05));
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .featured-small h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: .35rem;
            color: var(--text-main);
        }
        .featured-small p {
            font-size: .875rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        .trust-section {
            background: var(--bg-body);
        }
        .trust-badges {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }
        .trust-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.2rem;
            text-align: center;
            transition: all .3s;
        }
        .trust-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(52, 163, 131, .4);
        }
        .trust-num {
            display: block;
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .trust-item span:last-child {
            font-size: .875rem;
            color: var(--text-muted);
        }
        .partner-row {
            margin-top: 4rem;
        }
        .partner-row>span {
            display: block;
            text-align: center;
            color: var(--text-muted);
            font-size: .875rem;
            margin-bottom: 1rem;
            letter-spacing: .06em;
        }
        .partner-logos {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            flex-wrap: wrap;
            opacity: .65;
            transition: opacity .3s;
        }
        .partner-logos:hover {
            opacity: 1;
        }
        .partner-logos span {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-secondary);
            letter-spacing: .04em;
            cursor: default;
        }

        .faq-section {
            background: var(--bg-white);
        }
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-wrap .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: .75rem;
            background: #fff;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-wrap .accordion-button {
            font-weight: 600;
            color: var(--text-main);
            padding: 1.1rem 1.4rem;
            background: #fff;
            font-size: 1rem;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: .8rem;
            border-radius: 12px;
            transition: color .3s, background .3s;
        }
        .faq-wrap .accordion-button::after {
            background-image: none;
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            content: '\f078';
            color: var(--text-muted);
            transition: transform .3s, color .3s;
            flex-shrink: 0;
        }
        .faq-wrap .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-wrap .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--primary);
            box-shadow: none;
        }
        .faq-wrap .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(52, 163, 131, .35);
            outline-offset: -2px;
            border-radius: 12px;
        }
        .faq-wrap .accordion-item:first-of-type,
        .faq-wrap .accordion-item:last-of-type {
            border-radius: 12px;
        }
        .faq-wrap .accordion-body {
            padding: 0 1.4rem 1.2rem;
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.8;
        }

        .cta-section {
            background: var(--bg-warm);
        }
        .cta-box {
            background: linear-gradient(135deg, #0E3B31 0%, #0F5C4C 55%, #1D8269 100%);
            padding: 3.5rem 3rem;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-radius: 24px;
            box-shadow: 0 20px 50px rgba(15, 92, 76, .25);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(80deg, transparent, transparent 50px, rgba(255, 255, 255, .04) 50px, rgba(255, 255, 255, .04) 51px);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            margin-bottom: .75rem;
            color: #fff;
            position: relative;
        }
        .cta-box>p {
            color: rgba(255, 255, 255, .78);
            margin-bottom: 2rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            font-size: .9375rem;
            position: relative;
        }
        .cta-form {
            max-width: 480px;
            margin: 0 auto;
            display: flex;
            gap: .75rem;
            position: relative;
        }
        .cta-form .form-control {
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, .3);
            background: rgba(255, 255, 255, .1);
            color: #fff;
            padding: .7rem 1.2rem;
        }
        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, .6);
        }
        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, .15);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 107, 69, .2);
            color: #fff;
        }

        .site-footer {
            background: var(--bg-dark);
            color: #CFE0DB;
            padding: 5rem 0 2rem;
            font-size: .9375rem;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            line-height: 1;
        }
        .footer-brand:hover {
            color: #fff;
        }
        .site-footer p {
            color: rgba(255, 255, 255, .7);
            font-size: .875rem;
            line-height: 1.7;
        }
        .social-links {
            display: flex;
            gap: .75rem;
            margin-top: 1.2rem;
        }
        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #CFE0DB;
            font-size: .9rem;
            transition: all .3s;
        }
        .social-links a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: .5rem;
        }
        .site-footer h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, .7);
            padding: .3rem 0;
            transition: all .3s;
            font-size: .875rem;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: .5rem;
        }
        .footer-contact p {
            display: flex;
            align-items: flex-start;
            gap: .6rem;
            margin-bottom: .75rem;
            color: rgba(255, 255, 255, .7);
        }
        .footer-contact i {
            color: var(--primary-light);
            margin-top: .25rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            margin-top: 3rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        @media (max-width: 991.98px) {
            .hero-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-section {
                min-height: auto;
                padding: 130px 0 70px;
            }
            .hero-card {
                margin-top: 1rem;
            }
            .floating-card {
                transform: none;
            }
            .brand-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 1rem;
                box-shadow: var(--shadow-hover);
                margin-top: .5rem;
                border: 1px solid var(--border);
            }
            .site-header .navbar-nav .nav-link {
                color: var(--text-main);
                padding: .7rem 1rem;
            }
            .site-header .navbar-nav .nav-link.active {
                color: var(--primary);
            }
            .site-header .navbar-nav .nav-link.active::after {
                background: var(--primary);
            }
            .nav-cta {
                flex-direction: row;
                width: 100%;
                margin-top: .5rem;
                gap: .5rem;
            }
            .nav-cta .btn {
                flex: 1;
                min-width: 0;
            }
            .trust-badges {
                grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            }
            .cta-box {
                padding: 2.5rem 1.5rem;
            }
            .section-padding {
                padding: 4rem 0;
            }
        }

        @media (max-width: 767.98px) {
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-btns .btn {
                width: 100%;
                min-width: 0;
            }
            .hero-tags {
                justify-content: center;
            }
            .floating-card {
                width: 100%;
            }
            .brand-points {
                flex-direction: column;
                gap: 1.2rem;
                width: 100%;
            }
            .brand-point {
                display: flex;
                align-items: center;
                gap: 1rem;
                text-align: left;
                background: rgba(255, 255, 255, .1);
                border-radius: 12px;
                padding: .8rem 1rem;
            }
            .bp-icon {
                margin: 0;
            }
            .news-card {
                flex-wrap: wrap;
                padding: .9rem;
            }
            .news-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/8;
                border-radius: 12px;
            }
            .news-arrow {
                position: absolute;
                right: .8rem;
                bottom: .8rem;
            }
            .news-body {
                padding-right: 2.5rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn {
                width: 100%;
            }
            .site-footer {
                padding-top: 3rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .footer-bottom {
                flex-direction: column;
                gap: .25rem;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .hero-section {
                padding: 110px 0 60px;
            }
            .hero-sub {
                font-size: .9375rem;
            }
            .nav-cta .btn {
                font-size: .8125rem;
                padding: .55rem .8rem;
            }
            .section-heading h2 {
                font-size: 1.35rem;
            }
            .featured-small {
                flex-direction: column;
            }
            .trust-badges {
                grid-template-columns: 1fr;
            }
            .partner-logos {
                gap: 1.2rem;
            }
            .cta-box {
                padding: 2rem 1.25rem;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0F5C4C;
            --primary-light: #34A383;
            --primary-dark: #0B463A;
            --primary-darker: #092F28;
            --accent: #FF6B45;
            --accent-dark: #E9542F;
            --accent-darker: #D64A24;
            --bg-page: #FAF8F4;
            --bg-white: #FFFFFF;
            --bg-soft: #F2EEE7;
            --bg-dark: #0E3B31;
            --text-main: #12201C;
            --text-secondary: #4A5A55;
            --text-muted: #7A8883;
            --border: #E7E2D8;
            --success: #34A383;
            --warning: #E8A33D;
            --danger: #D9534F;
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 12px rgba(18, 32, 28, .06);
            --shadow-md: 0 10px 30px rgba(18, 32, 28, .12);
            --shadow-btn: 0 4px 14px rgba(15, 92, 76, .18);
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
            --bs-primary: #0F5C4C;
            --bs-link-color: #0F5C4C;
            --bs-link-hover-color: #0B463A;
        }

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

        body {
            font-family: var(--font-main);
            background: var(--bg-page);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            transition: color .3s ease, background .3s ease, box-shadow .3s ease, border-color .3s ease, transform .3s ease;
            color: var(--primary);
            text-decoration: none;
        }

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

        .container {
            max-width: 1140px;
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: 50px;
            padding: .75rem 1.8rem;
            font-weight: 600;
            border: 0;
            transition: all .3s ease;
            letter-spacing: .02em;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 92, 76, .25);
        }

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

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 69, .2);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 107, 69, .3);
        }

        .btn-accent:active {
            background: var(--accent-darker);
            transform: translateY(0);
        }

        .btn-outline-light {
            border: 1.5px solid rgba(255, 255, 255, .7);
            color: #fff;
            background: transparent;
            padding: .65rem 1.7rem;
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: .75rem 0;
            transition: all .3s ease;
            background: rgba(250, 248, 244, .96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(18, 32, 28, .06);
            border-bottom: 1px solid var(--border);
        }

        .navbar {
            padding: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: .02em;
            line-height: 1.2;
        }

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

        .brand-mark {
            width: 40px;
            height: 40px;
            min-width: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.05rem;
            box-shadow: 0 4px 12px rgba(15, 92, 76, .25);
        }

        .navbar-nav {
            gap: .5rem;
        }

        .navbar-nav .nav-link {
            padding: .5rem 1rem;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            border-radius: var(--radius-sm);
            font-size: .975rem;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 92, 76, .04);
        }

        .navbar-nav .nav-link.active {
            font-weight: 700;
            color: var(--primary);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 2px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-cta {
            display: flex;
            gap: .75rem;
        }

        .nav-cta .btn {
            min-width: 120px;
            padding: .55rem 1.35rem;
            font-size: .925rem;
        }

        .navbar-toggler {
            border: 0;
            padding: .25rem .5rem;
        }

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

        .navbar-toggler-icon {
            display: block;
            width: 26px;
            height: 20px;
            position: relative;
            background: none;
        }

        .navbar-toggler-icon span {
            position: absolute;
            left: 0;
            right: 0;
            top: 50%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .navbar-toggler-icon span::before,
        .navbar-toggler-icon span::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .navbar-toggler-icon span::before {
            top: -7px;
        }

        .navbar-toggler-icon span::after {
            top: 7px;
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span {
            background: transparent;
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* ========== 页面横幅 ========== */
        .page-banner {
            position: relative;
            padding: 8.5rem 0 4.5rem;
            background: linear-gradient(135deg, rgba(15, 92, 76, .94), rgba(29, 130, 105, .84)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: repeating-linear-gradient(115deg, rgba(255, 255, 255, .04) 0 1px, transparent 1px 22px);
            pointer-events: none;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .banner-tag {
            display: inline-block;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .25);
            padding: .35rem 1.1rem;
            border-radius: 50px;
            font-size: .875rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            letter-spacing: .04em;
        }

        .page-banner h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: .85rem;
            letter-spacing: -.01em;
        }

        .page-banner .lead {
            font-size: 1.0625rem;
            color: rgba(255, 255, 255, .9);
            line-height: 1.75;
            margin-bottom: 0;
            max-width: 560px;
        }

        /* ========== 功能图文交错区 ========== */
        .feature-blocks {
            padding: 5rem 0;
        }

        .feature-row {
            margin-bottom: 4.5rem;
            align-items: center;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            position: relative;
            border: 1px solid var(--border);
        }

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

        .feature-img:hover img {
            transform: scale(1.04);
        }

        .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 92, 76, .18), transparent 45%);
            pointer-events: none;
            border-radius: inherit;
        }

        .feature-text {
            padding: .5rem 0;
        }

        .feature-text .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-size: .8125rem;
            font-weight: 700;
            letter-spacing: .06em;
            color: var(--primary);
            background: #E2F1ED;
            padding: .3rem .9rem;
            border-radius: 50px;
            margin-bottom: 1.1rem;
        }

        .feature-text .eyebrow i {
            font-size: .75rem;
        }

        .feature-text h2 {
            font-size: clamp(1.4rem, 2.2vw, 1.9rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 1rem;
            color: var(--text-main);
            position: relative;
            padding-left: 14px;
        }

        .feature-text h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: .18em;
            bottom: .18em;
            width: 4px;
            border-radius: 2px;
            background: var(--primary);
        }

        .feature-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }

        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: .6rem;
        }

        .feature-tags .tag {
            background: var(--bg-soft);
            color: var(--text-secondary);
            font-size: .875rem;
            padding: .4rem 1rem;
            border-radius: 50px;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            transition: all .3s ease;
        }

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

        .feature-tags .tag i {
            color: var(--primary);
            font-size: .8rem;
        }

        /* ========== 特性一览 ========== */
        .feature-table {
            padding: 4.5rem 0 5rem;
            background: var(--bg-soft);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.1rem);
            font-weight: 700;
            margin-bottom: .75rem;
            color: var(--text-main);
            letter-spacing: -.01em;
        }

        .section-head h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: .65rem auto 0;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .table-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .table-card .row {
            margin: 0;
        }

        .table-card .col-md-6 {
            padding: 0;
        }

        .feature-item {
            padding: 2.5rem 2rem;
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            border-bottom: 1px solid var(--border);
            border-right: 1px solid var(--border);
            height: 100%;
            transition: background .3s ease, box-shadow .3s ease;
            background: #fff;
        }

        .feature-item:hover {
            background: #FAFDFC;
            box-shadow: inset 0 0 0 1px rgba(52, 163, 131, .12);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            min-width: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, #E2F1ED, #D3EAE4);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 2px 8px rgba(15, 92, 76, .08);
        }

        .feature-item h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: .45rem;
            color: var(--text-main);
        }

        .feature-item p {
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.7;
            margin: 0;
        }

        @media (min-width: 768px) {
            .feature-item:nth-child(even) {
                border-right: 0;
            }
            .feature-item:nth-child(5),
            .feature-item:nth-child(6) {
                border-bottom: 0;
            }
        }

        @media (max-width: 767px) {
            .feature-item {
                border-right: 0;
            }
            .feature-item:last-child {
                border-bottom: 0;
            }
        }

        /* ========== 页尾 CTA ========== */
        .bottom-cta {
            padding: 5rem 0;
        }

        .cta-box {
            background: linear-gradient(135deg, #0F5C4C 0%, #1D8269 60%, #27A080 100%);
            border-radius: 24px;
            padding: 4.5rem 3rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            pointer-events: none;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
            pointer-events: none;
        }

        .cta-box h2 {
            position: relative;
            z-index: 2;
            font-size: clamp(1.6rem, 2.8vw, 2.3rem);
            font-weight: 800;
            margin-bottom: 1rem;
            letter-spacing: -.01em;
        }

        .cta-box p {
            position: relative;
            z-index: 2;
            color: rgba(255, 255, 255, .85);
            max-width: 620px;
            margin: 0 auto 2.5rem;
            font-size: 1.0625rem;
            line-height: 1.75;
        }

        .cta-btns {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #CFE0DB;
            padding: 4.5rem 0 2rem;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: .6rem;
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            text-decoration: none;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

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

        .footer-brand .brand-mark {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 4px 12px rgba(255, 107, 69, .2);
        }

        .site-footer> .container> .row> .col-lg-4:first-child> p {
            font-size: .9375rem;
            line-height: 1.75;
            color: rgba(207, 224, 219, .8);
            margin-bottom: .5rem;
            margin-top: 1rem;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            position: relative;
            padding-bottom: .6rem;
        }

        .site-footer h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: .55rem;
        }

        .footer-links a {
            color: #CFE0DB;
            text-decoration: none;
            font-size: .9375rem;
            transition: color .3s ease, padding-left .3s ease;
        }

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

        .footer-contact p {
            margin-bottom: .6rem;
            display: flex;
            align-items: center;
            gap: .6rem;
            color: #CFE0DB;
            font-size: .9375rem;
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .social-links {
            display: flex;
            gap: .75rem;
            margin-top: 1.25rem;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #CFE0DB;
            font-size: 1rem;
            transition: all .3s ease;
        }

        .social-links a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.75rem;
            border-top: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: .75rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--bg-white);
                border-radius: var(--radius);
                padding: 1.5rem;
                margin-top: 1rem;
                box-shadow: var(--shadow-md);
                border-bottom: 3px solid var(--primary);
            }

            .nav-cta {
                flex-direction: column;
                margin-top: 1rem;
                gap: .6rem;
            }

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

            .navbar-nav {
                gap: .25rem;
            }

            .feature-row {
                margin-bottom: 3.5rem;
            }

            .feature-text {
                padding-top: 1.5rem;
            }

            .page-banner {
                padding-top: 7.5rem;
            }
        }

        @media (max-width: 767.98px) {
            .feature-blocks {
                padding: 3rem 0;
            }

            .feature-table {
                padding: 3.5rem 0;
            }

            .bottom-cta {
                padding: 3rem 0;
            }

            .cta-box {
                padding: 3rem 1.5rem;
                border-radius: var(--radius-lg);
            }

            .site-footer {
                padding: 3.5rem 0 1.5rem;
            }

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

            .feature-item {
                padding: 1.75rem 1.25rem;
            }

            .page-banner h1 {
                font-size: 1.85rem;
            }

            .page-banner .lead {
                font-size: .975rem;
            }
        }

        @media (max-width: 575.98px) {
            .page-banner {
                padding-top: 6.5rem;
                padding-bottom: 3rem;
            }

            .page-banner h1 {
                font-size: 1.65rem;
            }

            .banner-tag {
                font-size: .8125rem;
            }

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

            .cta-btns .btn+.btn {
                margin-left: 0;
                margin-top: .75rem;
            }

            .feature-text h2 {
                font-size: 1.3rem;
            }

            .feature-text p {
                font-size: .9375rem;
            }

            .feature-tags .tag {
                font-size: .8125rem;
            }
        }

/* roulang page: article */
:root {
  --green-900: #092F28;
  --green-800: #0B463A;
  --green-700: #0F5C4C;
  --green-600: #1D8269;
  --green-500: #34A383;
  --green-100: #E2F1ED;
  --green-50: #F0F8F6;
  --orange-500: #FF6B45;
  --orange-600: #E9542F;
  --orange-700: #D64A24;
  --warm-bg: #FAF8F4;
  --warm-light: #F2EEE7;
  --white: #FFFFFF;
  --text-main: #12201C;
  --text-sub: #4A5A55;
  --text-muted: #7A8883;
  --border-color: #E7E2D8;
  --radius-card: 16px;
  --radius-lg: 20px;
  --radius-pill: 50px;
  --shadow-card: 0 2px 12px rgba(18,32,28,.06);
  --shadow-hover: 0 10px 30px rgba(18,32,28,.12);
  --shadow-btn: 0 4px 14px rgba(15,92,76,.18);
  --transition-base: all .3s ease;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  background: var(--warm-bg);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 2px;
}
.btn {
  border-radius: var(--radius-pill);
  padding: .75rem 1.8rem;
  font-weight: 600;
  border: 0;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.btn-primary {
  background: var(--green-700);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--green-800);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15,92,76,.25);
}
.btn-primary:active {
  background: var(--green-900);
  transform: translateY(0);
  box-shadow: var(--shadow-btn);
}
.btn-accent {
  background: var(--orange-500);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255,107,69,.2);
}
.btn-accent:hover, .btn-accent:focus {
  background: var(--orange-600);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255,107,69,.3);
}
.btn-accent:active {
  background: var(--orange-700);
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  color: var(--green-700);
  border: 1.5px solid var(--green-700);
  box-shadow: none;
}
.btn-outline:hover, .btn-outline:focus {
  background: rgba(15,92,76,.05);
  border-width: 2px;
  color: var(--green-700);
  transform: translateY(-2px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250,248,244,.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(231,226,216,.8);
  box-shadow: 0 4px 20px rgba(18,32,28,.04);
}
.site-header .navbar {
  min-height: 72px;
  padding: .5rem 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--green-700);
}
.navbar-brand:hover {
  color: var(--green-600);
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  box-shadow: 0 4px 12px rgba(15,92,76,.25);
}
.navbar .nav-link {
  color: var(--text-main);
  font-weight: 500;
  padding: .5rem 1rem !important;
  position: relative;
  transition: color .25s ease;
}
.navbar .nav-link:hover, .navbar .nav-link:focus {
  color: var(--green-700);
}
.navbar .nav-link.active {
  color: var(--green-700);
  font-weight: 700;
}
.navbar .nav-link.active::after {
  content: '';
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 3px;
  border-radius: 2px;
  background: var(--green-700);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: .625rem;
}
.nav-cta .btn {
  min-width: 120px;
  padding: .625rem 1.4rem;
  font-size: .9375rem;
}
.navbar-toggler {
  border: 0;
  padding: .5rem;
}
.navbar-toggler:focus {
  box-shadow: none;
}
.navbar-toggler-icon {
  display: block;
  position: relative;
  width: 1.75rem;
  height: 1.25rem;
  background: none;
}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after,
.navbar-toggler-icon span {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--green-700);
  border-radius: 2px;
  transition: transform .3s ease, top .3s ease, opacity .3s ease;
}
.navbar-toggler-icon::before { top: 0; }
.navbar-toggler-icon span { top: 50%; transform: translateY(-50%); }
.navbar-toggler-icon::after { bottom: 0; }
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
  top: 50%; transform: translateY(-50%) rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span { opacity: 0; }
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
  bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg);
}
.breadcrumb-wrap {
  background: var(--warm-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}
.breadcrumb-wrap .breadcrumb {
  margin-bottom: 0;
}
.breadcrumb-wrap .breadcrumb-item {
  font-size: .875rem;
  color: var(--text-muted);
}
.breadcrumb-wrap .breadcrumb-item a {
  color: var(--green-700);
  transition: color .2s ease;
}
.breadcrumb-wrap .breadcrumb-item a:hover {
  color: var(--orange-500);
}
.breadcrumb-wrap .breadcrumb-item.active {
  color: var(--text-sub);
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.breadcrumb-item+.breadcrumb-item::before {
  color: var(--text-muted);
  content: '/';
}
.article-main {
  padding: 3rem 0 4rem;
  background: var(--white);
}
.article-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  animation: fadeUp .5s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.article-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.article-header h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem 1.5rem;
  font-size: .875rem;
  color: var(--text-muted);
  margin: 1rem 0 1.25rem;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
}
.article-meta i {
  color: var(--green-500);
}
.article-header-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
}
.tag {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-700);
  font-size: .8125rem;
  font-weight: 500;
  border-radius: 6px;
  padding: .3rem .75rem;
  transition: var(--transition-base);
}
.tag:hover {
  background: #CAE8E0;
  color: var(--green-800);
}
.article-cover {
  margin: 2rem 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/6;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.article-body {
  max-width: 720px;
  margin: 2.25rem auto 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-sub);
}
.article-body p {
  margin-bottom: 1.2em;
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 2em 0 .75em;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 1.8em 0 .6em;
}
.article-body ul,
.article-body ol {
  margin-bottom: 1.2em;
  padding-left: 1.4em;
}
.article-body li {
  margin-bottom: .5em;
  line-height: 1.7;
}
.article-body blockquote {
  border-left: 4px solid var(--green-500);
  background: var(--green-50);
  padding: 1rem 1.25rem;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  color: var(--text-sub);
  font-style: normal;
}
.article-body img {
  border-radius: 12px;
  margin: 1.5rem 0;
}
.article-body a {
  color: var(--green-700);
  border-bottom: 1px solid rgba(15,92,76,.3);
  transition: color .2s ease, border-color .2s ease;
}
.article-body a:hover {
  color: var(--orange-500);
  border-color: var(--orange-500);
}
.article-body code {
  background: var(--warm-light);
  padding: .2rem .4rem;
  border-radius: 6px;
  font-size: .9em;
  color: var(--green-700);
}
.article-footer {
  max-width: 720px;
  margin: 2.5rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}
.tag-label {
  font-weight: 600;
  color: var(--text-main);
  font-size: .875rem;
  margin-right: .25rem;
}
.article-pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
}
.pager-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text-sub);
  background: var(--warm-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: .75rem 1.25rem;
  transition: var(--transition-base);
}
.pager-link:hover {
  color: var(--green-700);
  border-color: var(--green-500);
  background: #fff;
  box-shadow: var(--shadow-card);
}
.article-empty {
  background: #fff;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
  padding: 4rem 2rem;
  max-width: 720px;
  margin: 0 auto;
  animation: fadeUp .5s ease both;
}
.empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--warm-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-muted);
  margin: 0 auto 1rem;
}
.article-empty h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: .5rem;
}
.article-empty p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.related-section {
  background: var(--warm-light);
  padding: 4.5rem 0;
}
.section-title {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0;
  padding-left: .75rem;
  position: relative;
  display: inline-block;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: .2em;
  bottom: .2em;
  width: 4px;
  border-radius: 2px;
  background: var(--green-500);
}
.related-section .section-title {
  margin-bottom: 2rem;
}
.related-card {
  display: flex;
  align-items: center;
  gap: .875rem;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 1rem;
  height: 100%;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(52,163,131,.4);
}
.related-thumb {
  flex-shrink: 0;
  width: 100px;
  height: 72px;
  border-radius: 12px;
  overflow: hidden;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.04);
}
.related-body h3 {
  font-size: .9375rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: .375rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-date {
  font-size: .8125rem;
  color: var(--text-muted);
}
.article-cta {
  padding: 4.5rem 0;
  background: var(--warm-bg);
}
.cta-box {
  background: linear-gradient(135deg, var(--green-700), var(--green-600));
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  box-shadow: var(--shadow-hover);
}
.cta-box h2 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: .375rem;
}
.cta-box p {
  color: rgba(255,255,255,.85);
  margin-bottom: 0;
}
.cta-box .btn {
  min-width: 180px;
}
.site-footer {
  background: var(--green-900);
  color: #CFE0DB;
  padding: 5rem 0 2rem;
}
.site-footer .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
}
.site-footer .footer-brand .brand-mark {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
}
.site-footer p {
  color: #A7BCB5;
  font-size: .9375rem;
  line-height: 1.7;
}
.social-links {
  display: flex;
  gap: .75rem;
  margin-top: 1.25rem;
}
.social-links a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  color: #CFE0DB;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}
.social-links a:hover {
  background: var(--orange-500);
  color: #fff;
  transform: translateY(-2px);
}
.site-footer h5 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: .5rem;
}
.site-footer h5::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: var(--orange-500);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: .625rem;
}
.footer-links a {
  color: #A7BCB5;
  font-size: .9375rem;
  transition: color .25s ease;
}
.footer-links a:hover {
  color: var(--orange-500);
}
.footer-contact p {
  margin-bottom: .625rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  color: #A7BCB5;
}
.footer-contact i {
  width: 18px;
  text-align: center;
  color: var(--green-500);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 3rem;
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .5rem 2rem;
  font-size: .8125rem;
  color: rgba(255,255,255,.55);
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--warm-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    margin-top: .75rem;
    box-shadow: var(--shadow-hover);
  }
  .nav-cta {
    flex-direction: column;
    align-items: stretch;
    margin-top: 1rem;
  }
  .nav-cta .btn {
    width: 100%;
  }
  .navbar .nav-link.active::after {
    left: 0;
    right: auto;
    width: 100%;
    height: 2px;
  }
}
@media (max-width: 767.98px) {
  .article-card {
    padding: 1.5rem;
  }
  .article-pager {
    flex-direction: column;
  }
  .cta-box {
    padding: 2rem 1.25rem;
    text-align: center;
    justify-content: center;
  }
  .related-card {
    padding: .875rem;
  }
}
@media (max-width: 575.98px) {
  .breadcrumb-wrap .breadcrumb {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .breadcrumb-wrap .breadcrumb::-webkit-scrollbar {
    display: none;
  }
  .article-cover {
    aspect-ratio: 16/9;
  }
  .article-header h1 {
    font-size: 1.45rem;
  }
  .article-body {
    font-size: 1rem;
  }
  .related-thumb {
    width: 84px;
    height: 64px;
  }
  .site-footer {
    padding: 3.5rem 0 1.5rem;
  }
  .footer-bottom {
    gap: .25rem 1rem;
    text-align: center;
  }
}

/* roulang page: category3 */
:root {
            --primary: #0F5C4C;
            --primary-light: #34A383;
            --primary-dark: #0B463A;
            --primary-darker: #092F28;
            --accent: #FF6B45;
            --accent-hover: #E9542F;
            --accent-active: #D64A24;
            --bg-page: #FAF8F4;
            --bg-white: #FFFFFF;
            --bg-muted: #F2EEE7;
            --bg-deep: #0E3B31;
            --text-main: #12201C;
            --text-secondary: #4A5A55;
            --text-muted: #7A8883;
            --line: #E7E2D8;
            --success: #34A383;
            --warning: #E8A33D;
            --danger: #D9534F;
            --radius-card: 16px;
            --radius-card-lg: 20px;
            --radius-btn: 50px;
            --radius-tag: 8px;
            --radius-input: 10px;
            --shadow-card: 0 2px 12px rgba(18, 32, 28, .06);
            --shadow-card-hover: 0 10px 30px rgba(18, 32, 28, .12);
            --shadow-btn: 0 4px 14px rgba(15, 92, 76, .18);
            --shadow-float: 0 12px 32px rgba(18, 32, 28, .18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 1rem;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }

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

        .container {
            max-width: 1140px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: relative;
            width: 100%;
            z-index: 100;
            background: var(--bg-page);
            border-bottom: 1px solid rgba(231, 226, 216, .7);
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(250, 248, 244, .92);
            backdrop-filter: blur(8px);
            box-shadow: 0 2px 16px rgba(18, 32, 28, .08);
        }

        .site-header .navbar {
            padding: .5rem 0;
            min-height: 72px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: .02em;
        }

        .navbar-brand .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 12px;
            color: #fff;
            font-size: .95rem;
            box-shadow: var(--shadow-btn);
        }

        .navbar-nav {
            gap: .25rem;
        }

        .nav-link {
            font-weight: 500;
            color: var(--text-main) !important;
            padding: .6rem .9rem !important;
            position: relative;
            transition: color .25s ease;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: .9rem;
            right: .9rem;
            bottom: 2px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .3s ease;
        }

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

        .nav-link.active {
            color: var(--primary) !important;
            font-weight: 700;
        }

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

        .nav-cta {
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-left: .5rem;
        }

        .btn {
            font-family: var(--font-sans);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: .6rem 1.5rem;
            transition: all .3s ease;
            border: none;
            white-space: nowrap;
        }

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

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(15, 92, 76, .24);
            color: #fff;
        }

        .btn-primary:active {
            background: var(--primary-darker);
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(15, 92, 76, .18);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 69, .22);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 107, 69, .30);
            color: #fff;
        }

        .btn-accent:active {
            background: var(--accent-active);
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 107, 69, .18);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: rgba(15, 92, 76, .05);
            border-width: 2px;
            color: var(--primary-dark);
        }

        .btn-lg {
            padding: .8rem 2rem;
            font-size: 1rem;
        }

        .navbar-toggler {
            border: none;
            padding: .5rem;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(15, 92, 76, .4);
        }

        .navbar-toggler-icon {
            display: block;
            width: 26px;
            height: 18px;
            position: relative;
            border: none;
        }

        .navbar-toggler-icon span,
        .navbar-toggler-icon::before,
        .navbar-toggler-icon::after {
            content: '';
            position: absolute;
            left: 0;
            width: 26px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .navbar-toggler-icon::before {
            top: 0;
        }

        .navbar-toggler-icon span {
            top: 8px;
        }

        .navbar-toggler-icon::after {
            top: 16px;
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
            top: 8px;
            transform: rotate(45deg);
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span {
            opacity: 0;
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
            top: 8px;
            transform: rotate(-45deg);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            background: linear-gradient(120deg, #0B463A 0%, #0F5C4C 55%, #1D8269 100%);
            padding: 5.5rem 0 4.5rem;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: .18;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(100deg, rgba(11, 70, 58, .92) 0%, rgba(15, 92, 76, .72) 50%, rgba(29, 130, 105, .42) 100%);
            z-index: 1;
        }

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

        .page-banner .banner-sticker {
            display: inline-block;
            font-size: .8125rem;
            letter-spacing: .18em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, .8);
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            padding: .3rem .85rem;
            border-radius: 30px;
            margin-bottom: 1.2rem;
        }

        .page-banner h1 {
            font-size: clamp(1.8rem, 3.2vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: .6rem;
            line-height: 1.3;
            letter-spacing: .02em;
        }

        .page-banner p {
            color: rgba(255, 255, 255, .88);
            font-size: 1.0625rem;
            max-width: 660px;
            margin-bottom: 0;
        }

        .page-banner .banner-line {
            width: 52px;
            height: 4px;
            border-radius: 4px;
            background: var(--accent);
            margin: 1.25rem 0 1.1rem;
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 5rem 0;
        }

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

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

        .section-title-wrap {
            margin-bottom: 2.5rem;
        }

        .section-title-wrap .section-tag {
            display: inline-block;
            font-size: .8125rem;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(15, 92, 76, .08);
            padding: .25rem .8rem;
            border-radius: 30px;
            margin-bottom: .7rem;
        }

        .section-title-wrap h2 {
            font-size: clamp(1.4rem, 2.2vw, 1.9rem);
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: .4rem;
            position: relative;
            padding-left: .9rem;
        }

        .section-title-wrap h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: .2rem;
            bottom: .2rem;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .section-title-wrap p {
            color: var(--text-secondary);
            font-size: .9375rem;
            max-width: 640px;
            margin-bottom: 0;
        }

        /* ===== About Intro ===== */
        .about-intro {
            padding: 5rem 0;
            background: var(--bg-white);
        }

        .about-intro .intro-image {
            position: relative;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .about-intro .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-card-lg);
            transition: transform .5s ease;
        }

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

        .about-intro .intro-image .image-badge {
            position: absolute;
            left: 1rem;
            bottom: 1rem;
            background: rgba(255, 255, 255, .94);
            color: var(--primary-dark);
            font-size: .8125rem;
            font-weight: 600;
            padding: .35rem .85rem;
            border-radius: 30px;
            box-shadow: var(--shadow-card);
            display: inline-flex;
            align-items: center;
            gap: .4rem;
        }

        .about-intro .intro-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: .4rem;
        }

        .about-intro .intro-content .intro-subtitle {
            display: inline-block;
            color: var(--primary);
            font-weight: 600;
            font-size: .875rem;
            letter-spacing: .06em;
            margin-bottom: 1.2rem;
            position: relative;
        }

        .about-intro .intro-content .intro-subtitle::after {
            content: '';
            display: block;
            width: 40px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            margin-top: .35rem;
        }

        .about-intro .intro-content p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 1rem;
        }

        .about-intro .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: .6rem;
            margin-top: 1.4rem;
        }

        .intro-tag {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: #E2F1ED;
            color: var(--primary);
            font-size: .875rem;
            font-weight: 600;
            padding: .3rem .8rem;
            border-radius: 8px;
            transition: background .25s ease;
        }

        .intro-tag:hover {
            background: #CAE8E0;
        }

        /* ===== Value Points ===== */
        .value-strip {
            background: var(--bg-muted);
            padding: 3.2rem 0;
        }

        .value-strip .value-card {
            text-align: center;
            padding: 1.6rem 1.2rem;
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
            height: 100%;
        }

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

        .value-strip .value-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 1rem;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.35rem;
            box-shadow: var(--shadow-btn);
        }

        .value-strip h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: .4rem;
        }

        .value-strip p {
            font-size: .875rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== Timeline ===== */
        .timeline-section {
            padding: 5rem 0;
            background: var(--bg-white);
        }

        .timeline {
            position: relative;
            padding: 0;
            margin: 0;
            list-style: none;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: repeating-linear-gradient(to bottom, var(--primary-light) 0px, var(--primary-light) 6px, transparent 6px, transparent 12px);
        }

        .timeline-item {
            position: relative;
            padding-left: 60px;
            margin-bottom: 2.4rem;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--accent);
            z-index: 1;
        }

        .timeline-card {
            background: var(--bg-page);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 1.3rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease;
        }

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

        .timeline-year {
            display: inline-block;
            font-size: .8125rem;
            font-weight: 700;
            color: var(--primary);
            background: #E2F1ED;
            padding: .15rem .7rem;
            border-radius: 20px;
            margin-bottom: .5rem;
            letter-spacing: .04em;
        }

        .timeline-card h4 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: .3rem;
        }

        .timeline-card p {
            font-size: .875rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Contact Form ===== */
        .contact-section {
            padding: 5rem 0;
            background: var(--bg-muted);
            position: relative;
            overflow: hidden;
        }

        .contact-card {
            background: var(--bg-white);
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-card);
            padding: 2.5rem;
            border: 1px solid var(--line);
        }

        .contact-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: .5rem;
        }

        .contact-card .contact-note {
            font-size: .875rem;
            color: var(--text-secondary);
            margin-bottom: 1.6rem;
        }

        .contact-form .form-label {
            font-size: .875rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: .35rem;
        }

        .contact-form .form-control {
            font-family: var(--font-sans);
            font-size: .9375rem;
            background: var(--bg-page);
            border: 1px solid var(--line);
            border-radius: var(--radius-input);
            padding: .7rem 1rem;
            color: var(--text-main);
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .contact-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(52, 163, 131, .18);
            background: #fff;
            outline: none;
        }

        .contact-form .form-control::placeholder {
            color: var(--text-muted);
            font-size: .875rem;
        }

        .contact-form textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }

        .contact-side {
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 1.5rem 0;
        }

        .contact-side .side-icon {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.5rem;
            box-shadow: var(--shadow-btn);
            margin-bottom: 1.2rem;
        }

        .contact-side h3 {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: .6rem;
        }

        .contact-side p {
            color: var(--text-secondary);
            font-size: .9375rem;
            margin-bottom: 1.2rem;
        }

        .contact-side .contact-meta {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .contact-side .contact-meta li {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: .875rem;
            color: var(--text-secondary);
            padding: .35rem 0;
        }

        .contact-side .contact-meta li i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        /* ===== CTA ===== */
        .final-cta {
            padding: 4.5rem 0;
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .final-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .14;
        }

        .final-cta .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 2.5rem 1rem;
        }

        .final-cta h2 {
            color: #fff;
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: .8rem;
        }

        .final-cta p {
            color: rgba(255, 255, 255, .82);
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #CFE0DB;
            padding: 4.5rem 0 1.6rem;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }

        .site-footer .footer-brand .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
            border-radius: 12px;
            color: #fff;
            font-size: .9rem;
        }

        .site-footer p {
            color: rgba(255, 255, 255, .72);
            font-size: .875rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
            position: relative;
            padding-bottom: .4rem;
        }

        .site-footer h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--primary-light);
            border-radius: 2px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: .4rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .72);
            font-size: .875rem;
            transition: color .25s ease, padding-left .25s ease;
        }

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

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: .5rem;
            margin-bottom: .55rem;
            color: rgba(255, 255, 255, .72);
            font-size: .875rem;
        }

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

        .social-links {
            display: flex;
            gap: .7rem;
            margin-top: .5rem;
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            color: #CFE0DB;
            font-size: .875rem;
            transition: all .25s ease;
        }

        .social-links a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.4rem;
            border-top: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: .5rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--bg-page);
                padding: 1rem 1.25rem;
                border-radius: 0 0 16px 16px;
                box-shadow: 0 12px 24px rgba(18, 32, 28, .08);
                border-bottom: 2px solid var(--primary);
            }

            .navbar-nav {
                gap: .1rem;
                margin-bottom: .5rem;
            }

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

            .nav-cta {
                margin-left: 0;
                width: 100%;
                border-top: 1px solid var(--line);
                padding-top: .8rem;
            }

            .nav-cta .btn {
                flex: 1;
                padding: .55rem 1rem;
                font-size: .875rem;
            }

            .section-block {
                padding: 3.5rem 0;
            }

            .about-intro,
            .timeline-section,
            .contact-section {
                padding: 3.5rem 0;
            }

            .about-intro .intro-image img {
                height: 300px;
            }
        }

        @media (max-width: 767.98px) {
            .page-banner {
                padding: 4rem 0 3.2rem;
            }

            .section-title-wrap h2 {
                font-size: 1.35rem;
            }

            .about-intro .intro-image img {
                height: 240px;
            }

            .contact-card {
                padding: 1.5rem;
            }

            .btn-lg {
                padding: .65rem 1.4rem;
                font-size: .9375rem;
            }

            .timeline-card {
                padding: 1rem 1.1rem;
            }
        }

        @media (max-width: 575.98px) {
            body {
                font-size: .9375rem;
            }

            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }

            .navbar-brand {
                font-size: 1.1rem;
            }

            .navbar-brand .brand-mark {
                width: 34px;
                height: 34px;
                font-size: .85rem;
            }

            .page-banner h1 {
                font-size: 1.7rem;
            }

            .section-block {
                padding: 3rem 0;
            }

            .about-intro,
            .timeline-section,
            .contact-section {
                padding: 3rem 0;
            }

            .timeline::before {
                left: 14px;
            }

            .timeline-item {
                padding-left: 48px;
            }

            .timeline-item::before {
                left: 7px;
                width: 14px;
                height: 14px;
            }

            .final-cta .cta-inner {
                padding: 1.5rem .5rem;
            }

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

            .nav-cta {
                flex-direction: column;
                gap: .5rem;
            }

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

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
        :root {
            --primary: #0F5C4C;
            --primary-light: #34A383;
            --primary-dark: #0B463A;
            --primary-darker: #092F28;
            --accent: #FF6B45;
            --accent-hover: #E9542F;
            --accent-active: #D64A24;
            --bg: #FAF8F4;
            --bg-alt: #F2EEE7;
            --bg-white: #FFFFFF;
            --dark: #0E3B31;
            --text-main: #12201C;
            --text-sub: #4A5A55;
            --text-weak: #7A8883;
            --border: #E7E2D8;
            --success: #34A383;
            --warning: #E8A33D;
            --danger: #D9534F;
            --radius-card: 16px;
            --radius-lg: 20px;
            --radius-btn: 50px;
            --radius-tag: 8px;
            --shadow-card: 0 2px 12px rgba(18, 32, 28, .06);
            --shadow-hover: 0 10px 30px rgba(18, 32, 28, .12);
            --shadow-cta: 0 4px 14px rgba(15, 92, 76, .18);
            --shadow-pop: 0 12px 32px rgba(18, 32, 28, .18);
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
            --bs-primary: #0F5C4C;
            --bs-primary-rgb: 15, 92, 76;
            --bs-link-color: #0F5C4C;
            --bs-link-hover-color: #0B463A;
            --bs-body-font-family: var(--font-main);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text-main);
            font-family: var(--font-main);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1140px;
        }

        /* ===================== 按钮 ===================== */
        .btn {
            border-radius: var(--radius-btn);
            padding: .7rem 1.8rem;
            font-weight: 600;
            font-size: .95rem;
            line-height: 1.6;
            border: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            transition: all .25s ease;
            cursor: pointer;
        }

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

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

        .btn-primary:active {
            background: var(--primary-darker);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 69, .28);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 107, 69, .32);
        }

        .btn-accent:active {
            background: var(--accent-active);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: rgba(15, 92, 76, .05);
            border-width: 2px;
            padding: calc(.7rem - .5px) calc(1.8rem - .5px);
            color: var(--primary-dark);
        }

        .btn-outline:active {
            background: rgba(15, 92, 76, .1);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        .accordion-button:focus-visible,
        .navbar-toggler:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-lg {
            padding: .9rem 2.2rem;
            font-size: 1rem;
        }

        /* ===================== 头部导航 ===================== */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(250, 248, 244, .94);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(18, 32, 28, .04);
        }

        .site-header .navbar {
            min-height: 72px;
            padding: .5rem 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: .55rem;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--text-main);
            letter-spacing: -.01em;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: .9rem;
            flex-shrink: 0;
        }

        .navbar-nav .nav-link {
            position: relative;
            font-weight: 500;
            color: var(--text-main);
            padding: .5rem .9rem;
            font-size: .95rem;
            border-radius: 6px;
            transition: color .2s ease;
        }

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

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: .9rem;
            right: .9rem;
            bottom: -.25rem;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: .6rem;
        }

        .nav-cta .btn {
            min-width: 110px;
            padding: .55rem 1.2rem;
            font-size: .9rem;
        }

        .navbar-toggler {
            border: 0;
            padding: .5rem;
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-icon {
            display: inline-block;
            width: 24px;
            height: 24px;
            position: relative;
        }

        .navbar-toggler-icon span {
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .navbar-toggler-icon span:nth-child(1) {
            top: 6px;
        }

        .navbar-toggler-icon span:nth-child(2) {
            top: 12px;
        }

        .navbar-toggler-icon span:nth-child(3) {
            top: 18px;
        }

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span:nth-child(1) {
            top: 12px;
            transform: rotate(45deg);
        }

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

        .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span:nth-child(3) {
            top: 12px;
            transform: rotate(-45deg);
        }

        /* ===================== 页面窄横幅 ===================== */
        .page-hero {
            padding: 4.5rem 0 3.5rem;
            background: linear-gradient(120deg, rgba(15, 92, 76, .96), rgba(11, 70, 58, .9)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 100%;
            background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, .035) 0 2px, transparent 2px 12px);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 6px;
            padding: .25rem .75rem;
            font-size: .75rem;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 1rem;
        }

        .page-hero h1 {
            font-size: clamp(1.9rem, 3.2vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin: 0 0 .4rem;
            letter-spacing: -.01em;
            line-height: 1.3;
        }

        .page-hero p {
            color: rgba(255, 255, 255, .85);
            font-size: 1rem;
            max-width: 520px;
            margin-bottom: 0;
        }

        .hero-badge {
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.8rem;
            text-align: center;
            min-width: 180px;
            flex-shrink: 0;
        }

        .hero-badge i {
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: .35rem;
            display: block;
        }

        .hero-badge span {
            font-size: .85rem;
            color: rgba(255, 255, 255, .8);
            display: block;
        }

        .hero-badge strong {
            font-size: 1.2rem;
            display: block;
            color: #fff;
            margin-top: .15rem;
        }

        /* ===================== 服务承诺条 ===================== */
        .help-promise {
            padding: 3.5rem 0;
            background: var(--bg-white);
        }

        .promise-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.8rem 1.5rem;
            text-align: center;
            height: 100%;
            transition: box-shadow .3s ease, transform .3s ease;
        }

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

        .promise-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .promise-card:nth-child(2) .promise-icon {
            background: var(--accent);
        }

        .promise-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: .35rem;
            color: var(--text-main);
        }

        .promise-card p {
            font-size: .88rem;
            color: var(--text-sub);
            margin: 0;
        }

        /* ===================== 帮助主体 ===================== */
        .help-main {
            padding: 4.5rem 0 5rem;
            background: var(--bg);
        }

        .help-sidebar {
            position: sticky;
            top: 100px;
        }

        .help-sidebar h2 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-main);
            position: relative;
            padding-left: .9rem;
        }

        .help-sidebar h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: .25rem;
            bottom: .25rem;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .sidebar-nav li+li {
            border-top: 1px solid var(--border);
        }

        .sidebar-nav a {
            display: block;
            padding: .85rem 1.2rem;
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            transition: all .25s ease;
        }

        .sidebar-nav a:hover {
            color: var(--primary);
            background: rgba(15, 92, 76, .03);
        }

        .sidebar-nav a.active {
            color: var(--primary);
            background: rgba(15, 92, 76, .05);
            font-weight: 700;
        }

        .sidebar-nav a.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
        }

        .sidebar-help {
            background: var(--bg-alt);
            border-radius: var(--radius-card);
            padding: 1.4rem 1.5rem;
            text-align: center;
        }

        .sidebar-help p {
            font-size: .9rem;
            color: var(--text-sub);
            margin-bottom: .8rem;
        }

        .sidebar-help .btn {
            width: 100%;
            font-size: .9rem;
            padding: .55rem 1rem;
        }

        /* ===================== FAQ ===================== */
        .faq-section {
            scroll-margin-top: 110px;
            margin-bottom: 2.8rem;
        }

        .faq-section:last-of-type {
            margin-bottom: 0;
        }

        .section-title {
            font-size: clamp(1.2rem, 2vw, 1.5rem);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1.2rem;
            position: relative;
            padding-left: .9rem;
            line-height: 1.4;
        }

        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: .25rem;
            bottom: .25rem;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: .75rem;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease;
        }

        .accordion-item:last-of-type {
            margin-bottom: 0;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 92, 76, .3);
        }

        .accordion-item:has(.accordion-button:not(.collapsed))::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            border-radius: 4px 0 0 4px;
            z-index: 1;
        }

        .accordion-item {
            position: relative;
        }

        .accordion-button {
            background: #fff;
            color: var(--text-main);
            font-weight: 600;
            font-size: .97rem;
            padding: 1.2rem 1.5rem;
            border: 0;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: .6rem;
            width: 100%;
            text-align: left;
            transition: color .25s ease;
        }

        .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:not(.collapsed)::after {
            background-image: none;
            transform: rotate(180deg);
            color: var(--primary);
        }

        .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            color: var(--text-weak);
            width: auto;
            height: auto;
            margin-left: auto;
            flex-shrink: 0;
            transition: transform .3s ease, color .3s ease;
        }

        .faq-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            border: 2px solid #C9CFCC;
            background: transparent;
            display: inline-block;
            flex-shrink: 0;
            transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .accordion-button:not(.collapsed) .faq-dot {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(15, 92, 76, .12);
        }

        .accordion-body {
            background: #fff;
            color: var(--text-sub);
            font-size: .94rem;
            line-height: 1.85;
            padding: 0 1.5rem 1.4rem 2.4rem;
        }

        /* ===================== 联系客服 ===================== */
        .contact-cta {
            padding: 0 0 4.5rem;
            background: var(--bg);
        }

        .contact-card {
            background: linear-gradient(135deg, #E2F1ED, #F4FAF8);
            border: 1px solid rgba(15, 92, 76, .14);
            border-radius: var(--radius-lg);
            padding: 2.4rem 2.5rem;
            box-shadow: var(--shadow-card);
        }

        .contact-img {
            width: 100%;
            max-width: 220px;
            border-radius: var(--radius-card);
            object-fit: cover;
            box-shadow: 0 8px 24px rgba(18, 32, 28, .1);
        }

        .contact-card h2 {
            font-size: clamp(1.3rem, 2.2vw, 1.7rem);
            font-weight: 700;
            margin-bottom: .4rem;
            color: var(--text-main);
        }

        .contact-card p {
            font-size: .95rem;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        /* ===================== 下载 CTA ===================== */
        .download-cta {
            padding: 1rem 0 5rem;
            background: var(--bg);
        }

        .download-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: calc(var(--radius-lg) + 6px);
            padding: 3.5rem 3rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .download-card::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }

        .download-card::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 30%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
        }

        .download-card h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 800;
            margin-bottom: .4rem;
            position: relative;
            z-index: 1;
        }

        .download-card p {
            color: rgba(255, 255, 255, .85);
            font-size: 1rem;
            margin-bottom: 1.6rem;
            position: relative;
            z-index: 1;
        }

        .download-card .cta-buttons {
            position: relative;
            z-index: 1;
            display: flex;
            justify-content: center;
            gap: .8rem;
            flex-wrap: wrap;
        }

        .download-card .btn-accent {
            box-shadow: 0 6px 20px rgba(255, 107, 69, .35);
        }

        /* ===================== 页脚 ===================== */
        .site-footer {
            background: var(--dark);
            padding: 4.5rem 0 2rem;
            color: #CFE0DB;
        }

        .site-footer .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: .55rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }

        .site-footer .footer-brand .brand-mark {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
        }

        .site-footer p {
            font-size: .9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 1.2rem;
            max-width: 320px;
        }

        .social-links {
            display: flex;
            gap: .6rem;
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .75);
            font-size: .95rem;
            transition: all .25s ease;
        }

        .social-links a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: .6rem;
        }

        .site-footer h5::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: .6rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: .9rem;
            transition: color .2s ease, padding-left .2s ease;
        }

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

        .footer-contact p {
            display: flex;
            align-items: flex-start;
            gap: .6rem;
            font-size: .9rem;
            color: rgba(255, 255, 255, .7);
            margin-bottom: .8rem;
        }

        .footer-contact i {
            color: var(--primary-light);
            margin-top: .3rem;
            width: 16px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 1.6rem;
            margin-top: 3rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: .6rem;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .55);
        }

        /* ===================== 响应式 ===================== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 14px;
                padding: 1rem 1.2rem;
                margin-top: .75rem;
                box-shadow: var(--shadow-pop);
                border-bottom: 2px solid var(--primary);
            }

            .navbar-nav .nav-link.active::after {
                left: 0;
                right: auto;
                bottom: .35rem;
                width: 3px;
                height: auto;
                top: .35rem;
            }

            .nav-cta {
                flex-direction: column;
                width: 100%;
                margin-top: .5rem;
                gap: .5rem;
            }

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

            .help-sidebar {
                position: static;
                margin-bottom: 2rem;
            }

            .sidebar-nav {
                display: flex;
                flex-wrap: wrap;
                gap: .5rem;
                padding: .8rem;
                border-radius: var(--radius-card);
            }

            .sidebar-nav li {
                border-top: 0 !important;
            }

            .sidebar-nav a {
                border-radius: 8px;
                padding: .5rem .9rem;
                font-size: .88rem;
            }

            .sidebar-nav a.active::before {
                display: none;
            }

            .contact-img {
                max-width: 100%;
                height: 160px;
                object-fit: cover;
                width: 100%;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 3.5rem 0 2.5rem;
            }

            .page-hero .container {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-badge {
                width: 100%;
                min-width: 0;
            }

            .help-main {
                padding: 3rem 0 3.5rem;
            }

            .contact-card {
                padding: 1.8rem 1.5rem;
            }

            .contact-card .text-lg-end {
                text-align: left !important;
                margin-top: 1rem;
            }

            .download-card {
                padding: 2.4rem 1.5rem;
            }

            .download-card .cta-buttons {
                flex-direction: column;
            }

            .download-card .cta-buttons .btn {
                width: 100%;
            }

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

        @media (max-width: 575.98px) {
            body {
                font-size: .95rem;
            }

            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }

            .navbar-brand {
                font-size: 1.15rem;
            }

            .page-hero h1 {
                font-size: 1.85rem;
            }

            .promise-card {
                padding: 1.4rem 1rem;
            }

            .accordion-button {
                padding: 1.1rem 1.2rem;
                font-size: .92rem;
            }

            .accordion-body {
                padding: 0 1.2rem 1.2rem 2rem;
            }

            .btn {
                width: 100%;
            }

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

            .hero-badge {
                padding: 1.2rem 1rem;
            }
        }

        @media (min-width: 992px) {
            .contact-card .contact-img {
                max-height: 130px;
                width: 100%;
            }
        }