/* roulang page: index */
:root {
            --pri: #0F766E;
            --pri-light: #14B8A6;
            --deep: #0B3B35;
            --gold: #F59E0B;
            --gold-light: #FBBF24;
            --page-bg: #F4F6F3;
            --card-bg: #FFFDF9;
            --ink: #1C2B29;
            --ink-2: #526362;
            --line: #DDE7E3;
            --greenline: rgba(15, 118, 110, 0.14);
            --card-shadow: 0 16px 40px -18px rgba(15, 118, 110, 0.18);
            --btn-focus: rgba(245, 158, 11, 0.35);
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--page-bg);
            color: var(--ink);
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        a:hover {
            color: #115E59;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container-x {
            width: min(1200px, 92vw);
            margin-left: auto;
            margin-right: auto;
        }
        .section-gap {
            padding: 84px 0;
        }
        @media (max-width: 768px) {
            .section-gap {
                padding: 56px 0;
            }
        }

        /* ===== top nav capsule ===== */
        .site-nav {
            position: fixed;
            top: 14px;
            left: 0;
            right: 0;
            z-index: 50;
            display: flex;
            justify-content: center;
        }
        .nav-inner {
            width: min(92vw, 1180px);
            background: rgba(255, 253, 249, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--greenline);
            border-radius: 999px;
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: background .25s ease, box-shadow .25s ease;
        }
        .site-nav.scrolled .nav-inner {
            background: rgba(255, 253, 249, 0.94);
            box-shadow: 0 18px 38px -22px rgba(15, 118, 110, 0.35);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.08rem;
            letter-spacing: 0.01em;
            white-space: nowrap;
            color: var(--ink);
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            flex: none;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--deep), var(--pri) 55%, var(--pri-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 8px 18px -8px rgba(15, 118, 110, 0.7);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-2);
            transition: background .18s ease, color .18s ease;
        }
        .nav-links a i {
            font-size: 0.8rem;
            color: var(--pri);
        }
        .nav-links a:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--pri);
        }
        .nav-links a.active {
            background: rgba(15, 118, 110, 0.12);
            color: var(--pri);
            font-weight: 700;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: none;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 22px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
            white-space: nowrap;
            border: 0;
            cursor: pointer;
        }
        .btn:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px var(--btn-focus);
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
            box-shadow: 0 10px 26px -12px rgba(217, 119, 6, 0.56);
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, #D97706, #F59E0B);
            color: #1C1917;
            transform: translateY(-2px);
        }
        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            min-height: 44px;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--deep), var(--pri));
            color: #fff;
            box-shadow: 0 10px 26px -12px rgba(15, 118, 110, 0.7);
        }
        .btn-primary:hover {
            background: #115E59;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-primary {
            background: #fff;
            border: 1px solid var(--pri);
            color: var(--pri);
        }
        .btn-outline-primary:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--pri);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--greenline);
            background: rgba(255, 253, 249, 0.9);
            color: var(--ink);
            font-size: 1rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 4vw;
            right: 4vw;
            z-index: 49;
            background: rgba(255, 253, 249, 0.96);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(15, 118, 110, 0.16);
            border-radius: 28px;
            padding: 18px;
            box-shadow: 0 24px 50px -24px rgba(15, 118, 110, 0.36);
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--ink);
        }
        .mobile-nav a:hover {
            background: rgba(15, 118, 110, 0.08);
        }
        .mobile-nav a.active {
            background: rgba(15, 118, 110, 0.12);
            color: var(--pri);
        }
        .mobile-nav .btn {
            margin-top: 12px;
            width: 100%;
        }
        @media (max-width: 960px) {
            .nav-links,
            .nav-cta .desktop-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        /* ===== hero home ===== */
        .hero-home {
            position: relative;
            background:
                radial-gradient(circle at 76% 28%, rgba(20, 184, 166, 0.32) 0, transparent 28%),
                linear-gradient(135deg, #0B3B35, #0F766E 62%, #14B8A6);
            color: #fff;
            padding-top: 176px;
            padding-bottom: 90px;
            overflow: hidden;
        }
        .hero-home::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.44;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 253, 249, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 999px;
            padding: 6px 14px 6px 8px;
            font-size: 0.8rem;
            color: #E0F2F1;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(2.5rem, 5.5vw, 4.2rem);
            line-height: 1.16;
            letter-spacing: 0.01em;
            font-weight: 800;
            margin: 0 0 20px;
        }
        .hero-title span {
            background: linear-gradient(120deg, #FCD34D, #F59E0B);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-sub {
            max-width: 580px;
            color: rgba(255, 255, 255, 0.84);
            font-size: 1.02rem;
            line-height: 1.9;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 34px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.85);
            background: rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 5px 12px;
        }
        .hero-media {
            position: relative;
            border-radius: 32px;
            overflow: hidden;
            box-shadow: 0 34px 70px -28px rgba(0, 0, 0, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }
        .hero-media img {
            width: 100%;
            height: 520px;
            object-fit: cover;
        }
        .hero-media-card {
            position: absolute;
            background: rgba(255, 253, 249, 0.96);
            border-radius: 18px;
            padding: 12px 16px;
            box-shadow: 0 18px 38px -18px rgba(11, 59, 53, 0.5);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 150px;
        }
        .hmc-01 {
            left: 16px;
            bottom: 34px;
        }
        .hmc-02 {
            right: 16px;
            top: 24px;
        }
        .hmc-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(15, 118, 110, 0.1);
            color: var(--pri);
            font-size: 16px;
        }
        .hmc-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }
        .hmc-text {
            font-size: 0.75rem;
            color: var(--ink-2);
            line-height: 1.4;
        }
        @media (max-width: 960px) {
            .hero-home {
                padding-top: 150px;
                padding-bottom: 56px;
            }
            .hero-media {
                margin-top: 36px;
            }
            .hero-media img {
                height: 300px;
            }
        }

        /* ===== data cards ===== */
        .data-cross {
            position: relative;
            z-index: 3;
            margin-bottom: 12px;
        }
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            margin-top: -56px;
            z-index: 4;
        }
        .data-strip .data-card:nth-child(even) {
            transform: translateY(12px);
        }
        .data-strip .data-card:nth-child(even):hover {
            transform: translateY(8px);
        }
        .data-card {
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.1);
            border-radius: 24px;
            padding: 26px 22px;
            box-shadow: var(--card-shadow);
            transition: transform .18s ease, box-shadow .18s ease;
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }
        .badge-dot {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.14), rgba(251, 191, 36, 0.22));
            border-radius: 999px;
            color: #B45309;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
        }
        .data-num {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            line-height: 1.15;
            font-weight: 800;
            margin: 14px 0 2px;
            color: var(--ink);
            font-variant-numeric: tabular-nums;
        }
        .data-label {
            color: var(--ink-2);
            font-size: 0.85rem;
            line-height: 1.6;
        }
        @media (max-width: 860px) {
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 28px;
            }
            .data-strip .data-card:nth-child(even) {
                transform: translateY(0);
            }
        }
        @media (max-width: 480px) {
            .data-strip {
                grid-template-columns: 1fr;
            }
        }

        /* ===== sec titles ===== */
        .sec-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--pri);
            background: rgba(15, 118, 110, 0.08);
            border-radius: 999px;
            padding: 5px 14px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
        }
        .sec-title {
            margin: 14px 0 10px;
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            line-height: 1.35;
            font-weight: 800;
            color: var(--ink);
        }
        .sec-desc {
            color: var(--ink-2);
            max-width: 640px;
            font-size: 0.98rem;
            line-height: 1.9;
        }

        /* ===== service matrix ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .svc-card {
            position: relative;
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.1);
            border-radius: 24px;
            padding: 26px;
            box-shadow: var(--card-shadow);
            transition: transform .18s ease, box-shadow .18s ease;
            overflow: hidden;
        }
        .svc-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }
        .svc-big {
            grid-column: span 7;
            display: flex;
            gap: 18px;
        }
        .svc-card-wide {
            grid-column: span 7;
        }
        .svc-card-sm {
            grid-column: span 5;
        }
        .svc-thumb {
            width: 240px;
            min-height: 250px;
            border-radius: 20px;
            object-fit: cover;
            flex: none;
        }
        .svc-no {
            position: absolute;
            top: 18px;
            right: 22px;
            color: rgba(15, 118, 110, 0.14);
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }
        .svc-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--deep), var(--pri-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            margin-bottom: 20px;
        }
        .svc-gold-icon {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
        }
        .svc-title {
            font-size: 1.3rem;
            font-weight: 800;
            margin: 12px 0 8px;
            line-height: 1.5;
        }
        .svc-list {
            list-style: none;
            margin: 14px 0 0;
            padding: 0;
            display: grid;
            gap: 8px;
        }
        .svc-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--ink-2);
            font-size: 0.88rem;
        }
        .svc-list li i {
            color: #D97706;
            margin-top: 6px;
            font-size: 0.72rem;
        }
        .section-soft {
            background: linear-gradient(150deg, #EDF3EF, #FFFDF9);
            border-radius: 40px;
            margin-top: 36px;
        }
        .svc-media-inline {
            width: 100%;
            height: 150px;
            border-radius: 16px;
            object-fit: cover;
            margin: 18px 0 0;
        }
        @media (max-width: 900px) {
            .svc-big,
            .svc-card-sm,
            .svc-card-wide {
                grid-column: span 12;
            }
            .svc-big {
                flex-direction: column;
            }
            .svc-thumb {
                width: 100%;
                min-height: 190px;
            }
        }

        /* ===== compare rows ===== */
        .compare-card-left {
            background: #F8F5EF;
            border: 1px solid rgba(15, 118, 110, 0.07);
            border-radius: 24px;
            height: 100%;
        }
        .compare-card-main {
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.18);
            border-radius: 24px;
            box-shadow: var(--card-shadow);
            height: 100%;
        }
        .cmp-row {
            display: grid;
            grid-template-columns: 44px 1fr;
            gap: 12px;
            align-items: baseline;
        }
        .cmp-index {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            background: #C7D6D1;
            justify-self: center;
        }
        .compare-card-main .cmp-index {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
        }

        /* ===== latest dynamic ===== */
        .latest-bg {
            background:
                linear-gradient(to bottom, rgba(255, 253, 249, 0.5), rgba(244, 246, 243, 0.5)),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius: 44px;
        }
        .latest-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .latest-card {
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.1);
            border-radius: 24px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .18s ease, box-shadow .2s ease;
            box-shadow: 0 12px 30px -20px rgba(15, 118, 110, 0.14);
            height: 100%;
        }
        .latest-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }
        .latest-card-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            border-bottom: 1px solid rgba(15, 118, 110, 0.08);
        }
        .latest-card-pad {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .latest-card-badge {
            display: inline-flex;
            align-items: center;
            width: max-content;
            gap: 6px;
            background: rgba(15, 118, 110, 0.08);
            color: var(--pri);
            font-size: 0.75rem;
            border-radius: 999px;
            padding: 4px 10px;
            font-weight: 600;
        }
        .latest-card h3 {
            margin: 14px 0 10px;
            font-size: 1.03rem;
            line-height: 1.7;
            font-weight: 800;
            color: var(--ink);
        }
        .latest-card h3 a:hover {
            color: var(--pri);
        }
        .latest-card p {
            font-size: 0.85rem;
            line-height: 1.8;
            color: var(--ink-2);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .latest-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            border-top: 1px solid var(--line);
            padding-top: 12px;
        }
        .latest-card time {
            font-size: 0.75rem;
            color: var(--ink-2);
        }
        .latest-card-link {
            color: var(--pri);
            font-weight: 700;
            font-size: 0.8rem;
        }
        .empty-card {
            grid-column: 1/-1;
            border: 1px dashed #B7CCC7;
            border-radius: 24px;
            padding: 44px 20px;
            text-align: center;
            background: rgba(255, 253, 249, 0.6);
            color: var(--ink-2);
        }
        @media (max-width: 860px) {
            .latest-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 560px) {
            .latest-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== faq ===== */
        .faq-wrap {
            max-width: 840px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.1);
            border-radius: 20px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .2s ease;
        }
        .faq-item.open {
            border-color: rgba(15, 118, 110, 0.3);
        }
        .faq-q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            text-align: left;
            background: none;
            border: 0;
            padding: 18px 22px;
            color: var(--ink);
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            min-height: 60px;
        }
        .faq-q i {
            color: var(--pri);
            transition: transform .25s ease;
            font-size: 0.9rem;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            padding: 0 22px;
            transition: max-height .28s ease, padding .28s ease;
            color: var(--ink-2);
            font-size: 0.92rem;
            line-height: 1.9;
            border-top: 0 solid transparent;
        }
        .faq-item.open .faq-a {
            max-height: 320px;
            padding-bottom: 20px;
            border-top-width: 1px;
            border-color: var(--line);
            margin-top: 0;
        }

        /* ===== cta contact ===== */
        .cta-gradient-card {
            background:
                radial-gradient(circle at 80% 0%, rgba(20, 184, 166, 0.25) 0%, transparent 28%),
                url('/assets/images/backpic/back-3.webp') top right / cover no-repeat,
                linear-gradient(135deg, #0B3B35, #0F766E 68%, #14B8A6);
            border-radius: 40px;
            color: #fff;
            overflow: hidden;
            padding: clamp(30px, 5vw, 66px);
        }
        .form-card {
            background: var(--card-bg);
            border-radius: 28px;
            padding: 26px;
            color: var(--ink);
            box-shadow: 0 26px 60px -24px rgba(11, 59, 53, 0.45);
        }
        .form-title {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 6px;
        }
        .form-input {
            width: 100%;
            border-radius: 12px;
            border: 1px solid var(--line);
            background: #FBFCF8;
            padding: 11px 14px;
            min-height: 44px;
            font-size: 0.9rem;
            color: var(--ink);
            transition: border .2s ease, box-shadow .2s ease;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--pri-light);
            box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.16);
        }
        textarea.form-input {
            min-height: 88px;
            resize: vertical;
        }
        .form-check {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.76rem;
            color: var(--ink-2);
            line-height: 1.6;
        }
        .state-hide {
            display: none;
        }
        .submit-state {
            display: none;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 8px 0;
            font-size: 0.82rem;
            border-radius: 999px;
            margin-top: 8px;
        }
        .submit-state.loading {
            display: flex;
            background: rgba(20, 184, 166, 0.1);
            color: var(--pri);
        }
        .submit-state.success {
            display: flex;
            background: rgba(5, 150, 105, 0.12);
            color: #047857;
        }
        .submit-state.error {
            display: flex;
            background: rgba(225, 29, 72, 0.08);
            color: #BE123C;
        }
        @media (max-width: 760px) {
            .cta-gradient-card {
                border-radius: 30px;
                padding: 24px 18px;
            }
        }

        /* ===== footer ===== */
        .site-footer {
            background: var(--deep);
            color: rgba(255, 255, 255, 0.76);
            font-size: 0.86rem;
        }
        .footer-brand {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.84rem;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 5px 0;
            transition: color .18s ease, opacity .18s ease;
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-link i {
            color: var(--gold-light);
            font-size: 0.75rem;
        }
        .footer-line {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-copy {
            color: rgba(255, 255, 255, 0.52);
            font-size: 0.78rem;
        }
        .back-to-top {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .back-to-top:hover {
            background: var(--gold);
            color: #1C1917;
        }

/* roulang page: category1 */
:root {
            --brand: #0F766E;
            --brand-light: #14B8A6;
            --brand-dark: #0B3B35;
            --gold: #F59E0B;
            --gold-light: #FBBF24;
            --bg: #F4F6F3;
            --card: #FFFDF9;
            --text: #1C2B29;
            --text-weak: #526362;
            --line: #DDE7E3;
            --success: #059669;
            --error: #E11D48;
            --shadow-card: 0 16px 40px -18px rgba(15, 118, 110, 0.18);
            --shadow-hover: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.85;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 20px;
        }

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

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
        }

        .container-x {
            width: min(1200px, 100%);
            margin-inline: auto;
            padding-inline: 24px;
        }

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

        .text-content {
            font-size: 1rem;
            line-height: 1.85;
            letter-spacing: 0.01em;
        }

        .text-content h2 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--brand-dark);
        }

        .text-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--brand);
            border-left: 4px solid var(--gold);
            padding-left: 12px;
        }

        .text-content p {
            margin-bottom: 1.25rem;
            color: #2a3836;
        }

        .site-nav {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            z-index: 1000;
            transition: top .15s ease, background .3s ease;
            padding-inline: 20px;
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: min(92vw, 1180px);
            background: rgba(255, 253, 249, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(15, 118, 110, 0.14);
            border-radius: 999px;
            padding: 8px 18px 8px 10px;
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-nav.scrolled .nav-inner {
            background: rgba(255, 253, 249, 0.94);
            box-shadow: 0 10px 34px rgba(11, 59, 53, 0.10);
        }

        .site-nav .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.08rem;
            letter-spacing: 0.02em;
            color: var(--brand-dark);
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #0B3B35, #0F766E, #14B8A6);
            color: #fff;
            border-radius: 12px;
            font-size: 1rem;
            box-shadow: 0 6px 14px rgba(15, 118, 110, 0.35);
        }

        .brand-icon i {
            font-size: 1rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.87rem;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            transition: all .18s ease;
        }

        .nav-links li a i {
            font-size: 0.82rem;
            color: #6b8b87;
        }

        .nav-links li a:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--brand);
        }

        .nav-links li a.active {
            background: rgba(15, 118, 110, 0.12);
            color: #0F766E;
            font-weight: 700;
        }

        .btn {
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 999px;
            font-weight: 600;
            transition: all .18s ease;
            text-decoration: none;
            gap: 8px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.15);
        }

        .btn-gold {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1C1917;
            box-shadow: 0 8px 20px -8px rgba(245, 158, 11, 0.5);
        }

        .btn-gold:hover {
            background: linear-gradient(0deg, rgba(0,0,0,.08), rgba(0,0,0,.06)), linear-gradient(135deg, #F59E0B, #FBBF24);
            transform: translateY(-1px);
            box-shadow: 0 12px 28px -10px rgba(245, 158, 11, 0.58);
        }

        .btn-outline-brand {
            background: transparent;
            border: 1.5px solid #fff;
            color: #fff;
        }

        .btn-outline-brand:hover {
            background: rgba(255, 255, 255, 0.12);
        }

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

        .btn-white-outline:hover {
            background: rgba(15, 118, 110, 0.08);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .desktop-cta {
            min-height: 38px;
            padding: 0 16px;
            font-size: .84rem;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            background: rgba(15, 118, 110, 0.12);
            border-radius: 50%;
            color: var(--brand);
            font-size: 1rem;
            align-items: center;
            justify-content: center;
        }

        .footer-link {
            font-size: 0.87rem;
            line-height: 2;
            padding: 2px 0;
            color: rgba(255,255,255,.65);
            transition: all .15s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-link i {
            font-size: .65rem;
            color: #80b8b0;
            margin-top: .2rem;
        }

        .footer-link:hover {
            color: #fff;
        }

        .site-footer {
            background: var(--brand-dark);
            color: #fff;
            border-radius: 40px 40px 0 0;
            margin-top: 60px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.14);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: .8rem;
            color: rgb(255 255 255 / .5);
        }

        .data-card {
            background: #FFFDF9;
            border-radius: 24px;
            border: 1px solid rgba(15,118,110,.1);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: transform .18s ease, box-shadow .18s ease;
        }

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

        .chip-experience {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1c1917;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: .78rem;
            font-weight: 700;
        }

        .chip-green {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 118, 110, 0.10);
            color: #0F766E;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: .78rem;
            font-weight: 600;
        }

        .section-top {
            margin-bottom: 42px;
        }

        .section-eyebrow {
            display: inline-block;
            background: rgba(15,118,110,.1);
            padding: 6px 16px;
            border-radius: 999px;
            color: var(--brand);
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .03em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            line-height: 1.3;
            color: var(--brand-dark);
            font-weight: 800;
            margin: 14px 0 12px;
        }

        .section-sub {
            color: var(--text-weak);
            font-size: .98rem;
            max-width: 680px;
        }

        .faq-btn {
            width: 100%;
            padding: 18px 18px 18px 22px;
            background: #FFFDF9;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            text-align: left;
            cursor: pointer;
            font-size: .98rem;
            font-weight: 700;
            border-radius: 16px;
            border: 1px solid transparent;
            transition: all .15s ease;
            color: var(--text);
            box-shadow: 0 4px 12px -6px rgba(15, 118, 110, 0.08);
        }

        .faq-btn:hover {
            background: #fcfaf2;
        }

        .faq-btn i {
            color: var(--gold);
            font-size: .75rem;
            transition: transform .2s;
            min-width: 18px;
            text-align: center;
        }

        .faq-item.active .faq-btn i {
            transform: rotate(90deg);
        }

        .faq-item.active .faq-btn {
            background: #faf7eb;
            border-color: rgba(245, 158, 11, 0.3);
        }

        .faq-answer {
            padding: 0;
            overflow: hidden;
            max-height: 0;
            transition: max-height .3s ease, padding .2s;
            color: var(--text-weak);
            background: #FFFDF9;
            border-radius: 0 0 14px 14px;
        }

        .faq-answer .answer-inner {
            padding: 4px 22px 18px;
            font-size: .91rem;
        }

        .faq-item.active .faq-answer {
            max-height: 320px;
            padding: 14px 0 0;
            margin-top: 4px;
        }

        .step-tag {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg,#0B3B35,#0F766E);
            color: #fff;
            font-weight: 800;
            border-radius: 12px;
            font-size: 1.1rem;
            box-shadow: 0 6px 16px rgba(15,118,110,.3);
        }

        .stat-badge {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -.01em;
            color: var(--brand-dark);
            font-variant-numeric: tabular-nums;
        }

        .stat-badge span {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            border-radius: 999px;
            padding: 2px 12px;
            font-size: .78rem;
            font-weight: 700;
            color: #1c1917;
            display: inline-block;
            vertical-align: middle;
            margin-left: 4px;
        }

        .media-card {
            background: #FFFDF9;
            border: 1px solid rgba(15,118,110,.1);
            border-radius: 24px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform .18s, box-shadow .18s;
        }

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

        @media (min-width: 1180px) {
            .desktop-brand {
                display: block;
            }
        }

        @media (max-width: 767px) {
            .desktop-brand {
                display: block;
            }
        }

        @media (max-width: 860px) {
            .desktop-brand {
                display: block;
                font-size: 1rem;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                margin: 0 auto;
                width: min(90vw, 420px);
                background: rgba(255,253,249,.98);
                backdrop-filter: blur(10px);
                border-radius: 24px;
                padding: 14px;
                flex-direction: column;
                box-shadow: 0 20px 40px rgba(11,59,53,.2);
                border: 1px solid rgba(15,118,110,.15);
            }

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

            .nav-links li {
                width: 100%;
            }

            .nav-links li a {
                border-radius: 12px;
                width: 100%;
                padding: 12px 14px;
            }

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

            .desktop-cta {
                display: none;
            }

            .nav-cta {
                align-items: center;
            }
        }

        .aspect-media {
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .category-banner {
            position: relative;
            background: linear-gradient(135deg,#0B3B35 0%,#0F766E 58%,#14B8A6 100%);
            border-radius: 0 0 40px 40px;
            padding: 140px 0 72px;
            overflow: hidden;
            color: #fff;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            opacity: .12;
        }

        .category-banner .inner {
            position: relative;
            z-index: 2;
        }

        .category-banner .breadcrumb {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
            font-size: .82rem;
            color: rgba(255,255,255,.78);
            margin-bottom: 24px;
        }

        .category-banner .breadcrumb i {
            font-size: .7rem;
        }

        .category-banner h1 {
            font-size: clamp(2.2rem, 4.5vw, 3rem);
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0,0,0,.15);
            margin-bottom: 12px;
        }

        .category-banner p.subtitle {
            font-size: 1.05rem;
            color: rgba(255,255,255,.88);
            max-width: 640px;
            line-height: 1.8;
        }

        .model-card {
            background: #fffdf9;
            border: 1px solid rgba(15,118,110,.12);
            border-radius: 22px;
            padding: 32px 28px;
            box-shadow: 0 10px 24px -16px rgba(11,59,53,.12);
            transition: all .18s;
        }

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

        .section-space {
            padding: 76px 0 36px;
        }

        @media (max-width: 768px) {
            .section-space {
                padding: 60px 0 24px;
            }
        }

        .comparison-col {
            background: #fffdf9;
            border: 1.5px solid rgba(15,118,110,.08);
            border-radius: 24px;
            padding: 28px;
            transition: box-shadow .18s, border-color .18s;
        }

        .comparison-col.key-col {
            border-color: rgba(15,118,110,.45);
            box-shadow: 0 20px 44px -20px rgba(15,118,110,.25);
        }

        .factoid {
            background: #fffdf9;
            border-radius: 18px;
            padding: 18px 22px;
            border-left: 5px solid var(--gold);
            box-shadow: 0 10px 20px -12px rgba(11,59,53,.12);
        }

        .bg-deep {
            background: var(--brand-dark);
            border-radius: 36px;
            padding: 64px 40px 66px;
            position: relative;
            overflow: hidden;
        }

        .bg-deep::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            opacity: .07;
        }

/* roulang page: category2 */
:root {
            --brand: #0F766E;
            --brand-light: #14B8A6;
            --brand-dark: #0B3B35;
            --gold: #F59E0B;
            --gold-light: #FBBF24;
            --bg: #F4F6F3;
            --card-bg: #FFFDF9;
            --ink: #1C2B29;
            --ink-soft: #526362;
            --line: #DDE7E3;
            --r-lg: 24px;
            --r-md: 16px;
            --shadow-card: 0 16px 40px -18px rgba(15, 118, 110, 0.18);
            --shadow-hover: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.85;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .18s ease;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media(max-width:640px) {
            .container-x {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        /* Nav */
        .site-nav {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            justify-content: center;
            pointer-events: none;
            padding: 0 16px;
        }
        .nav-inner {
            pointer-events: auto;
            max-width: min(92vw, 1180px);
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(255, 253, 249, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(15, 118, 110, 0.14);
            border-radius: 999px;
            padding: 10px 12px 10px 20px;
            box-shadow: 0 8px 32px -12px rgba(15, 118, 110, 0.15);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .nav-inner.scrolled {
            background: rgba(255, 253, 249, 0.94);
            box-shadow: 0 12px 34px -12px rgba(11, 59, 53, 0.2);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--brand-dark);
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0B3B35, #0F766E, #14B8A6);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
            font-size: 0.9rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            padding: 0;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--ink-soft);
            border-radius: 999px;
            padding: 8px 16px;
            transition: all .18s ease;
        }
        .nav-links a i {
            font-size: 0.8rem;
        }
        .nav-links a:hover {
            background: rgba(15, 118, 110, 0.07);
            color: var(--brand);
        }
        .nav-links a.active {
            background: rgba(15, 118, 110, 0.12);
            color: #0F766E;
            font-weight: 700;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 700;
            min-height: 42px;
            padding: 0 20px;
            font-size: 0.9rem;
            transition: all .18s ease;
            white-space: nowrap;
        }
        .btn-gold {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1C1917;
            border: none;
            box-shadow: 0 8px 18px -8px rgba(245, 158, 11, 0.5);
        }
        .btn-gold:hover {
            box-shadow: 0 10px 24px -8px rgba(245, 158, 11, 0.65);
            transform: translateY(-2px);
            color: #1C1917;
        }
        .nav-toggle {
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: rgba(15, 118, 110, 0.08);
            color: var(--brand);
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        @media(max-width:1024px) {
            .desktop-brand {
                display: none;
            }
            .brand .mobile-brand {
                display: inline;
                font-size: .95rem;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: .8rem;
            }
            .nav-links a i {
                display: none;
            }
        }
        @media(max-width:768px) {
            .site-nav {
                top: 8px;
            }
            .nav-inner {
                flex-wrap: wrap;
                border-radius: 24px;
                padding: 10px 14px;
                gap: 8px;
                max-width: calc(100vw - 20px);
            }
            .campaign-badge {
                display: none !important;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 8px 4px 4px;
                border-top: 1px solid rgba(15, 118, 110, 0.1);
                margin-top: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 14px;
                justify-content: flex-start;
                font-size: .92rem;
                border-radius: 14px;
                gap: 10px;
            }
            .nav-links a i {
                display: inline-block;
                width: 20px;
                text-align: center;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .desktop-cta {
                display: none;
            }
        }
        /* Footer */
        .site-footer {
            background: #0B3B35;
            color: #fff;
            margin-top: auto;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.7);
            font-size: .88rem;
            padding: 4px 0;
            transition: all .18s ease;
        }
        .footer-link:hover {
            color: #FBBF24;
            transform: translateX(4px);
        }
        .footer-link i {
            font-size: .65rem;
            margin-right: 4px;
            color: #14B8A6;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
        }
        .footer-brand .brand-icon {
            background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.8));
            color: #0B3B35;
        }
        .copyright-row {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            margin-top: 32px;
            text-align: center;
            color: rgba(255, 255, 255, 0.55);
            font-size: .8rem;
        }
        @media(max-width:768px) {
            .footer-brand {
                font-size: 1.05rem;
            }
        }
        /* Components */
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(15, 118, 110, 0.09);
            color: var(--brand);
            font-size: .78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }
        .eyebrow-gold {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1C1917;
        }
        .h2 {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            line-height: 1.3;
            font-weight: 800;
            color: var(--ink);
        }
        .section-pad {
            padding: 80px 0;
        }
        @media(max-width:768px) {
            .section-pad {
                padding: 56px 0;
            }
        }
        .card-white {
            background: var(--card-bg);
            border-radius: 24px;
            border: 1px solid rgba(15, 118, 110, 0.1);
            box-shadow: var(--shadow-card);
            transition: all .2s ease;
        }
        .card-white:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-card {
            background: var(--card-bg);
            border: 1px solid rgba(15, 118, 110, 0.08);
            border-radius: 24px;
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            min-height: 160px;
        }
        .stat-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 48px;
            height: 48px;
            border-radius: 999px;
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1C1917;
            font-size: 1rem;
            margin-bottom: 16px;
            box-shadow: 0 8px 20px -6px rgba(245, 158, 11, .55);
        }
        .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            color: var(--brand-dark);
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: .85rem;
            color: var(--ink-soft);
            margin-top: 6px;
            line-height: 1.6;
        }
        .btn-primary {
            background: linear-gradient(135deg, #0B3B35, #0F766E);
            color: #fff;
            min-height: 46px;
            padding: 0 28px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: .92rem;
            transition: all .2s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 25px -10px rgba(15, 118, 110, 0.45);
        }
        .btn-primary:hover {
            background: #115E59;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px -12px rgba(15, 118, 110, 0.55);
            color: #fff;
        }
        .btn-outline {
            background: #fff;
            border: 1.5px solid rgba(15, 118, 110, .4);
            color: var(--brand);
            min-height: 46px;
            padding: 0 24px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: .9rem;
            transition: all .18s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(15, 118, 110, .07);
            border-color: var(--brand);
            color: var(--brand);
        }
        .badge-main {
            display: inline-block;
            background: rgba(15, 118, 110, 0.1);
            color: var(--brand);
            font-size: .72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: .4px;
        }
        .badge-gold {
            display: inline-block;
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            color: #1C1917;
            font-size: .72rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
        }
        .num-tag {
            font-size: 1rem;
            font-weight: 800;
            color: var(--brand);
            background: rgba(15, 118, 110, 0.08);
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            flex-shrink: 0;
        }
        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border-radius: 16px;
            border: 1px solid rgba(15, 118, 110, 0.1);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .2s ease;
        }
        .faq-q {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--ink);
            transition: background .2s ease;
            border-radius: 16px;
        }
        .faq-q:hover {
            background: rgba(15, 118, 110, .03);
        }
        .faq-q .fa-chevron-down {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background: rgba(15, 118, 110, .1);
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: .75rem;
            transition: all .25s ease;
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
        }
        .faq-item.active .faq-q .fa-chevron-down {
            transform: rotate(180deg);
            background: var(--brand);
            color: #fff;
        }
        .faq-a {
            display: none;
            padding: 0 24px 20px;
            color: var(--ink-soft);
            font-size: .92rem;
            line-height: 1.8;
            border-left: 3px solid var(--brand);
            margin: 0 24px 18px 24px;
            padding-left: 14px;
            padding-top: 0;
            background: rgba(15, 118, 110, .02);
            border-radius: 0 8px 8px 0;
        }
        .faq-item.active .faq-a {
            display: block;
        }
        .faq-a {
            display: none;
            padding: 2px 14px 14px 14px !important;
            margin: 0 20px 18px 20px;
        }
        /* Page-specific */
        .cat-banner {
            background: linear-gradient(135deg, #0B3B35 0%, #0F766E 60%, #14B8A6 100%);
            padding: 130px 0 64px;
            margin-top: 0;
            position: relative;
            overflow: hidden;
        }
        .cat-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: right center;
            opacity: .16;
            z-index: 0;
        }
        .cat-banner .container-x {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: .8rem;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 14px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: #FBBF24;
        }
        .breadcrumb i {
            font-size: .65rem;
            color: rgba(255, 255, 255, .5);
        }
        .cat-banner h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }
        .cat-sub {
            font-size: 1.06rem;
            color: rgba(255, 255, 255, .86);
            max-width: 720px;
            line-height: 1.85;
        }
        .img-tag {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 50px -18px rgba(11, 59, 53, 0.3);
            border: 4px solid rgba(255, 255, 255, .3);
        }
        @media(max-width:768px) {
            .cat-banner {
                padding: 110px 0 44px;
            }
        }
        .timeline-list {
            list-style: none;
            padding: 0;
        }
        .timeline-step {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            position: relative;
            border-bottom: 1px solid rgba(15, 118, 110, 0.08);
        }
        .timeline-step:last-child {
            border-bottom: none;
        }
        .timeline-content {}

        .timeline-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--ink);
        }
        .timeline-content p {
            font-size: .88rem;
            color: var(--ink-soft);
            line-height: 1.75;
        }
        /* Feature blocks */
        .feature-panel {
            padding: 48px 8px;
        }
        @media(max-width:768px) {
            .feature-panel {
                padding: 16px 0;
            }
        }
        .feature-img-wrap {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 18px 46px -18px rgba(11, 59, 53, .25);
            border: 1px solid rgba(255, 255, 255, .4);
        }
        .feature-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(145deg, transparent 55%, rgba(11, 59, 53, 0.2));
            pointer-events: none;
        }
        .badge-float {
            position: absolute;
            bottom: 18px;
            left: 18px;
            z-index: 3;
            background: rgba(255, 253, 249, .92);
            backdrop-filter: blur(6px);
            border-radius: 14px;
            padding: 10px 18px;
            box-shadow: 0 8px 28px rgba(11, 59, 53, .12);
            color: var(--brand-dark);
            font-size: .78rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .check-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0 0;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: .93rem;
            color: var(--ink-soft);
            padding: 5px 0;
            line-height: 1.65;
        }
        .check-list li i {
            color: var(--brand);
            margin-top: 4px;
            font-size: .85rem;
            flex-shrink: 0;
        }
        .cta-strip {
            background: linear-gradient(90deg, #0B3B35, #0F766E);
            border-radius: 24px;
            padding: 46px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid rgba(255, 255, 255, .12);
            position: relative;
            overflow: hidden;
        }
        .cta-strip::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: rgba(20, 184, 166, .15);
            border-radius: 999px;
        }
        @media(max-width:768px) {
            .cta-strip {
                padding: 32px 24px;
            }
        }
        .focus-ring:focus-visible {
            outline: 3px solid rgba(245, 158, 11, .3);
            outline-offset: 2px;
        }
        section {
            scroll-margin-top: 110px;
        }

/* roulang page: article */
:root {
            --primary: #0F766E;
            --primary-light: #14B8A6;
            --primary-dark: #115E59;
            --deep: #0B3B35;
            --gold: #F59E0B;
            --gold-light: #FBBF24;
            --bg: #F4F6F3;
            --card: #FFFDF9;
            --text: #1C2B29;
            --muted: #526362;
            --line: #DDE7E3;
            --success: #059669;
            --error: #E11D48;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 999px;
            --shadow: 0 16px 40px -18px rgba(15, 118, 110, 0.18);
            --shadow-hover: 0 24px 50px -20px rgba(15, 118, 110, 0.26);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.85;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        @media (min-width: 1024px) {
            .container-x {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        /* 导航 */
        .site-nav {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 80;
            display: flex;
            justify-content: center;
            padding: 0 16px;
            pointer-events: none;
        }

        .nav-inner {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: min(92vw, 1180px);
            background: rgba(255, 253, 249, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(15, 118, 110, 0.14);
            border-radius: 999px;
            padding: 10px 12px 10px 16px;
            box-shadow: 0 12px 34px -20px rgba(11, 59, 53, 0.22);
            transition: background 180ms ease, box-shadow 180ms ease;
        }

        .site-nav.scrolled .nav-inner {
            background: rgba(255, 253, 249, 0.94);
            box-shadow: 0 18px 44px -22px rgba(15, 118, 110, 0.35);
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--deep), var(--primary) 58%, var(--primary-light));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            box-shadow: 0 8px 18px -6px rgba(15, 118, 110, 0.4);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 15px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--muted);
            transition: background 180ms ease, color 180ms ease;
        }

        .nav-links a i {
            font-size: 0.82rem;
            opacity: 0.8;
        }

        .nav-links a:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
        }

        .nav-links a.active {
            background: rgba(15, 118, 110, 0.12);
            color: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .desktop-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 0;
            border-radius: 999px;
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
            font-size: 1.1rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background 180ms ease, transform 180ms ease;
        }

        .nav-toggle:hover {
            background: rgba(15, 118, 110, 0.15);
        }

        @media (max-width: 900px) {
            .nav-links {
                position: absolute;
                left: 50%;
                top: calc(100% + 8px);
                transform: translateX(-50%) translateY(-8px);
                width: min(94vw, 520px);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                background: rgba(255, 253, 249, 0.97);
                backdrop-filter: blur(16px);
                border: 1px solid rgba(15, 118, 110, 0.14);
                border-radius: 24px;
                padding: 12px;
                box-shadow: 0 28px 60px -20px rgba(15, 118, 110, 0.4);
                opacity: 0;
                visibility: hidden;
                transition: opacity 180ms ease, transform 180ms ease;
            }

            .nav-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateX(-50%) translateY(0);
            }

            .nav-links a {
                padding: 13px 16px;
                border-radius: 14px;
                font-size: 0.98rem;
            }

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

            .desktop-cta {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .desktop-brand {
                display: none;
            }
        }

        /* 通用按钮 */
        .btn {
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: 999px;
            border: 1px solid transparent;
            font-weight: 700;
            font-size: 0.94rem;
            cursor: pointer;
            transition: all 180ms ease;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.3);
            outline-offset: 2px;
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
            border-color: rgba(255, 255, 255, 0.6);
            box-shadow: 0 12px 24px -14px rgba(245, 158, 11, 0.6);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 18px 32px -14px rgba(245, 158, 11, 0.65);
            background: linear-gradient(135deg, #F59E0B, #FBBF24 70%);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--deep), var(--primary));
            color: #fff;
            border-color: transparent;
        }

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

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
        }

        .btn-light-outline {
            background: rgba(15, 118, 110, 0.05);
            border-color: rgba(15, 118, 110, 0.35);
            color: var(--primary);
        }

        .btn-light-outline:hover {
            background: rgba(15, 118, 110, 0.1);
            border-color: var(--primary);
        }

        /* 文章顶部 */
        .article-banner {
            background:
                linear-gradient(135deg, rgba(11, 59, 53, 0.94), rgba(15, 118, 110, 0.88), rgba(20, 184, 166, 0.72)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--deep);
            padding: 148px 0 64px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .article-banner::after {
            content: "";
            position: absolute;
            inset: auto 0 0 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, rgba(255, 253, 249, 0.8));
            pointer-events: none;
        }

        .crumbs {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 22px;
        }

        .crumbs a {
            color: rgba(255, 255, 255, 0.78);
            transition: color 180ms ease;
        }

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

        .crumb-sep {
            color: rgba(255, 255, 255, 0.45);
        }

        .crumb-current {
            color: #fff;
            max-width: 230px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .banner-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .banner-h1 {
            font-size: clamp(1.65rem, 3.6vw, 2.75rem);
            line-height: 1.28;
            color: #fff;
            font-weight: 800;
            max-width: 860px;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.84rem;
            padding-bottom: 12px;
        }

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

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

        /* 文章主体 */
        .article-wrap {
            padding-top: 56px;
            padding-bottom: 80px;
            position: relative;
            z-index: 2;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 48px;
        }

        @media (min-width: 992px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 320px;
                align-items: start;
            }
        }

        .article-main-box {
            min-width: 0;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(15, 118, 110, 0.1);
            box-shadow: var(--shadow);
            padding: clamp(24px, 4vw, 42px);
        }

        .cms-content {
            font-size: 1.06rem;
            line-height: 1.9;
            color: var(--text);
            word-break: break-word;
        }

        .cms-content h2 {
            font-size: 1.5rem;
            color: var(--deep);
            font-weight: 800;
            margin: 2rem 0 0.9rem;
            padding-left: 14px;
            border-left: 4px solid var(--gold);
            line-height: 1.4;
        }

        .cms-content h3 {
            font-size: 1.25rem;
            color: var(--primary-dark);
            font-weight: 800;
            margin: 1.75rem 0 0.75rem;
            line-height: 1.45;
        }

        .cms-content p {
            margin-bottom: 1.35rem;
            color: var(--text);
        }

        .cms-content a {
            color: var(--primary);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(15, 118, 110, 0.28);
            transition: text-decoration-color 180ms ease;
        }

        .cms-content a:hover {
            text-decoration-color: var(--primary);
        }

        .cms-content img {
            border-radius: 20px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }

        .cms-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(15, 118, 110, 0.06);
            padding: 16px 20px;
            border-radius: 0 16px 16px 0;
            margin: 1.5rem 0;
            color: var(--muted);
        }

        .cms-content ul,
        .cms-content ol {
            margin: 0 0 1.4rem;
            padding-left: 1.3rem;
        }

        .cms-content li {
            margin-bottom: 0.5rem;
            padding-left: 4px;
        }

        .cms-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            background: var(--card);
            border-radius: 12px;
            overflow: hidden;
            font-size: 0.95rem;
        }

        .cms-content th {
            background: var(--deep);
            color: #fff;
            text-align: left;
            padding: 10px 14px;
            font-weight: 600;
        }

        .cms-content td {
            border: 1px solid var(--line);
            padding: 10px 14px;
        }

        .cms-content code {
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary-dark);
            padding: 2px 7px;
            border-radius: 6px;
            font-size: 0.9em;
        }

        .not-found-card {
            text-align: center;
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px dashed rgba(15, 118, 110, 0.3);
            box-shadow: var(--shadow);
            padding: 60px 28px;
        }

        .not-found-card h2 {
            color: var(--deep);
            font-size: 1.6rem;
            margin-top: 18px;
        }

        .not-found-card p {
            color: var(--muted);
            margin: 10px 0 26px;
        }

        .not-found-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
            font-size: 1.5rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        /* 文章目录侧栏 */
        .article-aside {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: sticky;
            top: 96px;
        }

        .aside-block {
            background: var(--card);
            border: 1px solid rgba(15, 118, 110, 0.1);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 24px 22px;
        }

        .aside-title {
            font-size: 1.02rem;
            font-weight: 800;
            color: var(--deep);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .aside-title i {
            color: var(--gold);
            font-size: 1rem;
        }

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

        .toc-list li {
            margin-bottom: 4px;
        }

        .toc-list a {
            display: block;
            padding: 7px 12px;
            border-radius: 12px;
            font-size: 0.87rem;
            color: var(--muted);
            font-weight: 500;
            line-height: 1.5;
            transition: background 180ms ease, color 180ms ease, transform 180ms ease;
        }

        .toc-list a:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
            transform: translateX(4px);
        }

        .toc-empty {
            font-size: 0.85rem;
            color: var(--muted);
            background: rgba(15, 118, 110, 0.04);
            border-radius: 12px;
            padding: 14px 16px;
            line-height: 1.6;
        }

        .aside-thumb {
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 18px;
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            box-shadow: 0 10px 24px -12px rgba(15, 118, 110, 0.3);
        }

        .aside-link-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            margin-bottom: 5px;
            border-radius: 14px;
            background: rgba(15, 118, 110, 0.045);
            color: var(--text);
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 180ms ease;
        }

        .aside-link-item:hover {
            background: rgba(15, 118, 110, 0.1);
            color: var(--primary);
        }

        .aside-link-item .item-icon {
            width: 38px;
            height: 38px;
            flex: 0 0 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--deep), var(--primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.86rem;
        }

        .aside-link-item span small {
            display: block;
            font-size: 0.76rem;
            font-weight: 400;
            color: var(--muted);
            line-height: 1.4;
            margin-top: 2px;
        }

        .aside-tag {
            display: inline-block;
            background: rgba(15, 118, 110, 0.1);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            margin: 3px 3px 0 0;
            transition: all 180ms ease;
        }

        .aside-tag:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1C1917;
        }

        /* 相关卡片 */
        .related-title {
            display: inline-block;
            font-size: 1.32rem;
            font-weight: 800;
            color: var(--deep);
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(251, 191, 36, 0.18));
            padding: 8px 20px;
            margin-bottom: 26px;
        }

        .related-grid {
            display: grid;
            gap: 16px;
            margin-top: 6px;
        }

        @media (min-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--card);
            border-radius: 18px;
            border: 1px solid rgba(15, 118, 110, 0.09);
            padding: 18px;
            box-shadow: var(--shadow);
            transition: transform 180ms ease, box-shadow 180ms ease;
        }

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

        .related-card-img {
            width: 84px;
            height: 84px;
            flex: 0 0 84px;
            border-radius: 14px;
            object-fit: cover;
        }

        .related-card h3 {
            font-size: 0.96rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.55;
        }

        .related-card p {
            font-size: 0.78rem;
            color: var(--muted);
            margin-top: 5px;
            line-height: 1.5;
        }

        /* CTA */
        .article-cta {
            padding: 0 20px 76px;
        }

        .cta-inner {
            background:
                radial-gradient(1200px 500px at 80% 0%, rgba(245, 158, 11, 0.3), transparent 50%),
                linear-gradient(135deg, var(--deep), var(--primary));
            border-radius: 32px;
            padding: 48px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            position: relative;
            overflow: hidden;
        }

        .cta-inner::after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 40px solid rgba(255, 255, 255, 0.08);
        }

        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.45rem, 2.5vw, 2rem);
            line-height: 1.4;
            font-weight: 800;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            margin-top: 12px;
            max-width: 620px;
        }

        .cta-inner .btn {
            position: relative;
            z-index: 2;
        }

        @media (max-width: 640px) {
            .cta-inner {
                padding: 34px 24px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--deep);
            color: #fff;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-weight: 800;
            font-size: 1.25rem;
        }

        .footer-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 6px 0;
            transition: color 180ms ease, padding-left 180ms ease;
        }

        .footer-link i {
            color: var(--gold);
            font-size: 0.7rem;
        }

        .footer-link:hover {
            color: #fff;
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.52);
            font-size: 0.85rem;
            text-align: center;
        }

        .focus-ring:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.45);
            outline-offset: 2px;
        }

        @media (max-width: 520px) {
            .article-card {
                border-radius: 18px;
                padding: 20px 18px;
            }

            .crumbs {
                font-size: 0.78rem;
            }

            .banner-meta {
                gap: 10px;
                font-size: 0.78rem;
            }

            .related-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-card-img {
                width: 100%;
                height: 160px;
                flex: auto;
            }
        }

/* roulang page: category3 */
:root {
            --teal-900: #0B3B35;
            --teal-700: #0F766E;
            --teal-500: #14B8A6;
            --gold-500: #F59E0B;
            --gold-400: #FBBF24;
            --bg: #F4F6F3;
            --surface: #FFFDF9;
            --text: #1C2B29;
            --muted: #526362;
            --border: #DDE7E3;
            --success: #059669;
            --error: #E11D48;
            --radius-lg: 24px;
            --radius-md: 16px;
            --shadow: 0 16px 40px -18px rgba(15, 118, 110, .18);
            --shadow-hover: 0 24px 50px -20px rgba(15, 118, 110, .26);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            font-size: 1rem;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

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

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

        :focus-visible {
            outline: 3px solid rgba(245, 158, 11, .32);
            outline-offset: 2px;
        }

        .container-x {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 768px) {
            .container-x {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        .section-standard {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        @media (max-width: 760px) {
            .section-standard {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            line-height: 1.3;
            font-weight: 800;
            color: var(--teal-900);
        }

        .kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .8rem;
            font-weight: 800;
            letter-spacing: .1em;
            color: var(--teal-700);
            text-transform: uppercase;
        }

        .kicker-line {
            width: 26px;
            height: 2px;
            background: linear-gradient(90deg, var(--gold-500), var(--gold-400));
            border-radius: 99px;
            display: inline-block;
        }

        .text-muted {
            color: var(--muted);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .site-nav {
            position: fixed;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 60;
            width: min(92vw, 1180px);
            border-radius: 999px;
            background: rgba(255, 253, 249, .78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(15, 118, 110, .14);
            transition: background .25s ease, box-shadow .25s ease;
        }

        .site-nav.scrolled {
            background: rgba(255, 253, 249, .96);
            box-shadow: 0 14px 38px -24px rgba(15, 118, 110, .32);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-radius: 999px;
            padding: 10px 12px 10px 18px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--teal-900);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--teal-900), var(--teal-700), var(--teal-500));
            color: #fff;
            font-size: 1rem;
        }

        .mobile-brand {
            display: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 14px;
            border-radius: 999px;
            font-size: .92rem;
            font-weight: 600;
            color: var(--muted);
            transition: all .18s ease;
        }

        .nav-links a:hover {
            background: rgba(15, 118, 110, .08);
            color: var(--teal-700);
        }

        .nav-links a.active {
            background: rgba(15, 118, 110, .12);
            color: var(--teal-700);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 0;
            border-radius: 50%;
            background: rgba(15, 118, 110, .07);
            color: var(--teal-700);
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            transition: background .18s ease;
        }

        .nav-toggle:hover {
            background: rgba(15, 118, 110, .12);
        }

        @media (max-width: 991px) {
            .nav-toggle {
                display: inline-flex;
            }

            .desktop-cta {
                display: none !important;
            }

            .nav-inner {
                flex-wrap: wrap;
                padding: 8px 10px 8px 14px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                background: rgba(255, 253, 249, .98);
                border: 1px solid rgba(15, 118, 110, .12);
                border-radius: 24px;
                padding: 14px;
                box-shadow: 0 20px 48px -22px rgba(15, 118, 110, .3);
            }

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

            .nav-links a {
                padding: 11px 14px;
                font-size: 1rem;
            }
        }

        @media (max-width: 420px) {
            .desktop-brand {
                display: none;
            }

            .mobile-brand {
                display: inline;
            }

            .nav-inner {
                gap: 6px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 11px 22px;
            min-height: 44px;
            font-size: .92rem;
            font-weight: 700;
            white-space: nowrap;
            cursor: pointer;
            transition: all .18s ease;
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
            color: #1C1917;
            box-shadow: 0 10px 26px -14px rgba(245, 158, 11, .6);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px -14px rgba(245, 158, 11, .74);
        }

        .btn-teal {
            background: linear-gradient(135deg, var(--teal-900), var(--teal-700));
            color: #fff;
            box-shadow: 0 12px 28px -16px rgba(15, 118, 110, .62);
        }

        .btn-teal:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 34px -18px rgba(15, 118, 110, .72);
        }

        .btn-outline {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(255, 255, 255, .62);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .16);
            border-color: #fff;
        }

        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #0B3B35 0%, #0F766E 55%, #14B8A6 100%);
            position: relative;
            padding-top: 156px;
            padding-bottom: 82px;
        }

        .category-banner .banner-cover {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .12;
        }

        .category-banner h1 {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
        }

        .category-banner .page-lead {
            max-width: 720px;
            color: rgba(255, 255, 255, .82);
            font-size: 1.05rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: .85rem;
            font-weight: 600;
            color: #fff;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: .86rem;
            font-weight: 500;
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .card-soft {
            background: var(--surface);
            border: 1px solid rgba(15, 118, 110, .1);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }

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

        .mini-card {
            background: var(--surface);
            border: 1px solid rgba(15, 118, 110, .1);
            border-radius: 20px;
            padding: 20px;
            box-shadow: 0 10px 28px -22px rgba(15, 118, 110, .25);
        }

        .mini-card .icon {
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(15, 118, 110, .12), rgba(20, 184, 166, .1));
            color: var(--teal-700);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }

        .floating-note {
            position: absolute;
            display: flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            border-radius: 18px;
            padding: 13px 16px;
            box-shadow: 0 18px 40px -20px rgba(11, 59, 53, .35);
            border: 1px solid rgba(15, 118, 110, .1);
        }

        .floating-note .note-icon {
            width: 34px;
            height: 34px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
            color: #1C1917;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
        }

        .dark-grad-sec {
            background: linear-gradient(135deg, #0B3B35 0%, #0F766E 60%, #14B8A6 100%);
            color: #fff;
            border-radius: 36px;
        }

        .check-card {
            background: rgba(255, 255, 255, .97);
            border-radius: 28px;
            padding: 28px;
            box-shadow: 0 24px 60px -28px rgba(11, 59, 53, .45);
        }

        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 11px 0;
            border-bottom: 1px solid rgba(15, 118, 110, .08);
            font-size: .95rem;
            color: var(--text);
            line-height: 1.6;
        }

        .check-item:last-child {
            border-bottom: 0;
        }

        .check-item .check-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(5, 150, 105, .12);
            color: var(--success);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .7rem;
            flex: 0 0 auto;
            margin-top: 5px;
        }

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

        .risk-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: rgba(15, 118, 110, .06);
            border: 1px solid rgba(15, 118, 110, .1);
            border-radius: 16px;
            padding: 14px 16px;
            font-size: .94rem;
            color: var(--text);
            line-height: 1.6;
        }

        .risk-list li i {
            color: var(--gold-500);
            margin-top: 4px;
        }

        .help-card {
            position: relative;
            background: var(--surface);
            border: 1px solid rgba(15, 118, 110, .1);
            border-radius: 22px;
            box-shadow: var(--shadow);
            padding: 28px 24px;
            height: 100%;
        }

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

        .help-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            font-weight: 800;
            font-size: 1.05rem;
            color: #1C1917;
            background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
            margin-bottom: 18px;
        }

        .help-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--teal-900);
            margin-bottom: 10px;
        }

        .help-card p {
            font-size: .92rem;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
        }

        .warning-panel {
            background: linear-gradient(150deg, rgba(11, 59, 53, .96), rgba(15, 118, 110, .88));
            color: #fff;
            border-radius: 26px;
            padding: 34px;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .warning-panel::before {
            content: "";
            position: absolute;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(251, 191, 36, .18);
            top: -40px;
            right: -40px;
        }

        .faq-wrap {
            max-width: 840px;
            margin-left: auto;
            margin-right: auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid rgba(15, 118, 110, .12);
            border-radius: 18px;
            overflow: hidden;
            margin-bottom: 14px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .faq-item[open] {
            border-color: rgba(15, 118, 110, .24);
            box-shadow: 0 16px 34px -22px rgba(15, 118, 110, .24);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            list-style: none;
            cursor: pointer;
            padding: 20px 24px;
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--teal-900);
            line-height: 1.6;
        }

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

        .faq-item summary i {
            transition: transform .2s ease;
            flex: 0 0 auto;
            color: var(--gold-500);
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item .faq-body {
            padding: 0 24px 22px 24px;
            color: var(--muted);
            font-size: .96rem;
            line-height: 1.85;
        }

        .site-footer {
            background: var(--teal-900);
            color: rgba(255, 255, 255, .78);
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 1.28rem;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            font-size: 1.1rem;
        }

        .footer-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .68);
            font-size: .9rem;
            padding: 5px 0;
            transition: all .18s ease;
        }

        .footer-link i {
            font-size: .65rem;
            color: var(--gold-400);
        }

        .footer-link:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-block-title {
            color: #fff;
            font-weight: 700;
            font-size: .95rem;
            margin-bottom: 14px;
        }