/* roulang page: index */
:root {
            --bg-deep: #070D18;
            --bg-elev: #0D1626;
            --glass-bg: rgba(18, 32, 52, 0.55);
            --glass-border: rgba(255, 255, 255, 0.12);
            --primary: #2D8CF0;
            --primary-strong: #4DA8FF;
            --accent: #00D9C0;
            --gold: #D9A85A;
            --text-main: #E8EEF7;
            --text-sub: #9AAEC5;
            --text-muted: #5E7391;
            --danger: #FF5D5D;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 16px 44px rgba(0, 0, 0, 0.32), 0 0 0 1px rgba(45, 140, 240, 0.25);
            --glow-primary: 0 0 20px rgba(45, 140, 240, 0.45), 0 0 40px rgba(0, 184, 233, 0.15);
            --gradient-btn: linear-gradient(135deg, #2D8CF0, #00B8D9);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-deep);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        .section {
            padding: 96px 0;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.25rem);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-head h2::after {
            content: "";
            display: block;
            width: 48px;
            height: 3px;
            margin: 12px auto 0;
            background: linear-gradient(90deg, var(--gold), var(--primary));
            border-radius: 2px;
        }

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

        /* === 通知条 === */
        .notice-bar {
            background: rgba(7, 13, 24, 0.85);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 8px 0;
            font-size: 0.8125rem;
            color: var(--text-sub);
        }

        .notice-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .notice-bar .notice-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .notice-bar .notice-left i {
            color: var(--accent);
        }

        .notice-bar .notice-right {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
        }

        .notice-bar .notice-right strong {
            color: var(--text-sub);
            font-weight: 600;
            letter-spacing: .3px;
        }

        /* === Header 导航 === */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 13, 24, 0.72);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: border-color .3s ease;
        }

        .site-header.scrolled {
            border-bottom-color: rgba(45, 140, 240, 0.25);
            box-shadow: 0 1px 20px rgba(45, 140, 240, 0.08);
        }

        .site-header .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            position: relative;
            padding: 0;
        }

        .site-header .navbar-brand {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            z-index: 2;
            background: transparent;
        }

        .site-header .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--gradient-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.15rem;
            box-shadow: var(--glow-primary);
            flex-shrink: 0;
        }

        .site-header .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .site-header .nav-left,
        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .site-header .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-sub);
            padding: 8px 2px;
            position: relative;
            transition: color .25s ease;
            background: transparent;
            border: none;
        }

        .site-header .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            transition: width .3s ease;
        }

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

        .site-header .nav-link.active {
            color: var(--gold);
        }

        .site-header .nav-link.active::after {
            width: 100%;
        }

        .site-header .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-btn);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            box-shadow: var(--glow-primary);
            transition: all .3s ease;
        }

        .site-header .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 0 24px rgba(45, 140, 240, 0.55), 0 0 48px rgba(0, 184, 233, 0.2);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-btn);
            transition: background .2s;
            z-index: 3;
            display: none;
        }

        .navbar-toggler:hover,
        .navbar-toggler:focus {
            background: rgba(255, 255, 255, 0.06);
            outline: none;
            box-shadow: none;
        }

        .navbar-collapse {
            background: rgba(7, 13, 24, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px;
            margin-top: 12px;
            position: absolute;
            left: 0;
            right: 0;
            top: 72px;
            z-index: 50;
        }

        .navbar-collapse .nav-link {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            border-radius: 8px;
            transition: background .2s, color .2s;
        }

        .navbar-collapse .nav-link:hover {
            background: rgba(45, 140, 240, 0.12);
            color: var(--primary-strong);
        }

        .navbar-collapse .nav-link.active {
            background: rgba(217, 168, 90, 0.1);
            color: var(--gold);
        }

        /* === Hero === */
        .hero {
            min-height: clamp(480px, 82vh, 720px);
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg,
                    rgba(7, 13, 24, 0.95) 0%,
                    rgba(7, 13, 24, 0.82) 40%,
                    rgba(7, 13, 24, 0.45) 70%,
                    rgba(7, 13, 24, 0.3) 100%);
            z-index: 1;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 80%, rgba(45, 140, 240, 0.18), transparent 60%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 5;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 60px;
            width: 100%;
        }

        .hero-content {
            max-width: 640px;
            flex: 1;
        }

        .hero-content .h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0;
        }

        .hero-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .badge-gold {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, rgba(217, 168, 90, 0.2), rgba(217, 168, 90, 0.08));
            color: var(--gold);
            border: 1px solid rgba(217, 168, 90, 0.3);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .3px;
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(45, 140, 240, 0.12);
            color: var(--primary-strong);
            border: 1px solid rgba(45, 140, 240, 0.2);
            font-size: 0.8125rem;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .hero-subtitle {
            font-size: clamp(1rem, 1.4vw, 1.125rem);
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .btn-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gradient-btn);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            box-shadow: var(--glow-primary);
            transition: all .3s ease;
            cursor: pointer;
        }

        .btn-glow:hover {
            color: #fff;
            filter: brightness(1.08);
            box-shadow: 0 0 24px rgba(45, 140, 240, 0.55), 0 0 48px rgba(0, 184, 233, 0.22);
            transform: translateY(-1px);
        }

        .btn-glow:active {
            transform: translateY(1px);
            filter: brightness(0.95);
        }

        .btn-outline-glass {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(18, 32, 52, 0.4);
            border: 1px solid var(--glass-border);
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 500;
            padding: 12px 30px;
            border-radius: var(--radius-btn);
            transition: all .3s ease;
            cursor: pointer;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .btn-outline-glass:hover {
            border-color: var(--primary-strong);
            color: var(--primary-strong);
            background: rgba(45, 140, 240, 0.06);
        }

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

        .hero-card {
            width: 320px;
            flex-shrink: 0;
            background: rgba(10, 18, 32, 0.65);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 20px;
            padding: 32px 28px;
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
            animation: heroCardIn .8s ease .2s both;
        }

        @keyframes heroCardIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-card .verify-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .hero-card .verify-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(217, 168, 90, 0.15);
            border: 1px solid rgba(217, 168, 90, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.25rem;
        }

        .hero-card .verify-label {
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .hero-card .verify-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .hero-card .domain-box {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 14px 16px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .hero-card .domain-box .domain {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .3px;
            font-family: "SF Mono", "Consolas", monospace;
        }

        .hero-card .copy-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 1rem;
            cursor: pointer;
            padding: 4px;
            border-radius: 4px;
            transition: color .2s;
        }

        .hero-card .copy-btn:hover {
            color: var(--accent);
        }

        .hero-card .info-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.875rem;
            color: var(--text-sub);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .hero-card .info-row:last-child {
            border-bottom: none;
        }

        .hero-card .info-row .label {
            color: var(--text-muted);
        }

        .hero-card .info-row .value {
            color: var(--text-main);
            font-weight: 500;
        }

        .hero-card .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(0, 217, 192, 0.6);
            margin-right: 6px;
        }

        /* === 核心推荐网格 === */
        .feature-grid {
            background: var(--bg-deep);
            position: relative;
        }

        .feature-grid .section-head {
            margin-bottom: 56px;
        }

        .feature-card {
            background: var(--glass-bg);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            position: relative;
            height: 100%;
            transition: all .35s ease;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(45, 140, 240, 0.35);
        }

        .feature-card:hover .feature-img img {
            transform: scale(1.03);
        }

        .feature-card.featured {
            border-color: rgba(217, 168, 90, 0.35);
            background: linear-gradient(135deg, rgba(18, 32, 52, 0.75), rgba(217, 168, 90, 0.04));
        }

        .feature-card.featured .feature-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: linear-gradient(135deg, #D9A85A, #B8863B);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            box-shadow: 0 2px 12px rgba(217, 168, 90, 0.3);
        }

        .feature-card .feature-img {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 20px;
            height: 160px;
            position: relative;
            background: linear-gradient(135deg, rgba(45, 140, 240, 0.1), rgba(0, 217, 192, 0.05));
        }

        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(45, 140, 240, 0.12);
            border: 1px solid rgba(45, 140, 240, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-strong);
            font-size: 1.4rem;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* === 评价轮播 === */
        .testimonial-section {
            background: var(--bg-elev);
            position: relative;
        }

        .testimonial-wrap {
            max-width: 820px;
            margin: 0 auto;
            position: relative;
        }

        .testimonial-card {
            background: var(--glass-bg);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 44px 48px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .testimonial-card .stars {
            color: var(--gold);
            font-size: 1.1rem;
            margin-bottom: 20px;
            letter-spacing: 4px;
        }

        .testimonial-card .stars i {
            margin: 0 2px;
        }

        .testimonial-card .quote {
            font-size: 1.0625rem;
            color: var(--text-main);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            padding: 0 10px;
        }

        .testimonial-card .quote::before {
            content: "\201C";
            font-size: 3.5rem;
            color: rgba(45, 140, 240, 0.25);
            position: absolute;
            top: -18px;
            left: -16px;
            font-family: Georgia, serif;
            line-height: 1;
        }

        .testimonial-card .user-info {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
        }

        .testimonial-card .avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--gradient-btn);
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 12px rgba(45, 140, 240, 0.3);
        }

        .testimonial-card .user-name {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-main);
        }

        .testimonial-card .user-time {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .carousel-control-prev,
        .carousel-control-next {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(18, 32, 52, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--glass-border);
            top: 50%;
            transform: translateY(-50%);
            bottom: auto;
            opacity: 1;
            transition: all .3s ease;
        }

        .carousel-control-prev {
            left: -20px;
        }

        .carousel-control-next {
            right: -20px;
        }

        .carousel-control-prev:hover,
        .carousel-control-next:hover {
            background: rgba(45, 140, 240, 0.25);
            border-color: rgba(45, 140, 240, 0.4);
            box-shadow: var(--glow-primary);
        }

        .carousel-control-prev i,
        .carousel-control-next i {
            color: var(--text-main);
            font-size: 1.1rem;
        }

        .carousel-indicators {
            position: static;
            margin-top: 32px;
            gap: 8px;
        }

        .carousel-indicators [data-bs-target] {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            border: none;
            transition: all .3s ease;
        }

        .carousel-indicators .active {
            background: var(--gold);
            width: 28px;
            border-radius: 6px;
        }

        /* === 保障条 === */
        .trust-bar {
            padding: 64px 0;
            background: transparent;
        }

        .trust-bar .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-item {
            background: rgba(18, 32, 52, 0.35);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            transition: all .3s ease;
        }

        .trust-item:hover {
            background: rgba(45, 140, 240, 0.08);
            border-color: rgba(45, 140, 240, 0.25);
            transform: translateY(-4px);
        }

        .trust-item .icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: rgba(45, 140, 240, 0.1);
            border: 1px solid rgba(45, 140, 240, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-strong);
            font-size: 1.3rem;
        }

        .trust-item h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .trust-item p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* === 资讯列表 === */
        .news-section {
            background: var(--bg-deep);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px) saturate(140%);
            -webkit-backdrop-filter: blur(12px) saturate(140%);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            display: flex;
            gap: 20px;
            padding: 18px;
            transition: all .3s ease;
            position: relative;
            height: 100%;
        }

        .news-card:hover {
            border-color: rgba(45, 140, 240, 0.3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .news-card .news-thumb {
            width: 120px;
            height: 84px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: linear-gradient(135deg, rgba(45, 140, 240, 0.15), rgba(0, 217, 192, 0.05));
        }

        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.06);
        }

        .news-card .news-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
        }

        .news-card .news-tags .badge-soft {
            font-size: 0.75rem;
            padding: 2px 10px;
        }

        .news-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            transition: color .2s ease;
        }

        .news-card:hover h3 {
            color: var(--primary-strong);
        }

        .news-card .news-desc {
            font-size: 0.8375rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 12px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            flex: 1;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .news-card .news-meta .read-more {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .2s ease, color .2s ease;
        }

        .news-card:hover .news-meta .read-more {
            gap: 8px;
            color: var(--primary-strong);
        }

        .news-empty {
            background: rgba(18, 32, 52, 0.4);
            border: 1px dashed var(--glass-border);
            border-radius: var(--radius-card);
            padding: 64px 32px;
            text-align: center;
            color: var(--text-muted);
            grid-column: 1 / -1;
        }

        .news-empty i {
            font-size: 2.5rem;
            display: block;
            margin-bottom: 16px;
            color: var(--text-muted);
            opacity: 0.6;
        }

        .news-empty p {
            margin-bottom: 4px;
            font-size: 0.9375rem;
        }

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

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--glass-bg);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color .3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(45, 140, 240, 0.35);
        }

        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 600;
            padding: 18px 24px;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
            transition: color .2s;
            position: relative;
        }

        .accordion-button::after {
            content: "+";
            background-image: none !important;
            font-size: 1.4rem;
            color: var(--primary);
            width: auto;
            height: auto;
            transform: none;
            font-weight: 400;
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary-strong);
            background: rgba(45, 140, 240, 0.04);
            box-shadow: none;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--gold);
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .accordion-body {
            color: var(--text-sub);
            line-height: 1.75;
            padding: 4px 24px 20px;
            font-size: 0.9375rem;
        }

        /* === CTA === */
        .cta-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 96px 0;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 13, 24, 0.95), rgba(7, 13, 24, 0.8));
        }

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

        .cta-section h2 {
            font-size: clamp(1.75rem, 3.2vw, 2.5rem);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.0625rem;
            color: var(--text-sub);
            max-width: 600px;
            margin: 0 auto 36px;
        }

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

        .cta-domain {
            margin-top: 28px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .cta-domain a {
            color: var(--text-sub);
            font-family: "SF Mono", "Consolas", monospace;
            border-bottom: 1px dashed var(--text-muted);
            padding-bottom: 2px;
        }

        /* === 页脚 === */
        .site-footer {
            background: rgba(7, 13, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 64px 0 32px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .brand-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-sub);
            transition: color .25s;
        }

        .footer-links a:hover {
            color: var(--gold);
        }

        .footer-contact {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 2;
        }

        .footer-contact .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8125rem;
            color: var(--accent);
            margin-top: 12px;
        }

        .footer-status .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 6px rgba(0, 217, 192, 0.6);
            display: inline-block;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            text-align: center;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

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

        .footer-bottom a:hover {
            color: var(--text-sub);
        }

        /* === 焦点状态 === */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .navbar-toggler:focus-visible {
            outline: 2px solid var(--primary-strong);
            outline-offset: 2px;
            box-shadow: none;
        }

        /* === 响应式 === */
        @media (max-width: 1199.98px) {
            .trust-bar .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .section {
                padding: 64px 0;
            }

            .site-header .nav-left,
            .site-header .nav-right {
                display: none;
            }

            .navbar-toggler {
                display: block;
            }

            .site-header .navbar {
                min-height: 64px;
            }

            .site-header .navbar-brand {
                position: static;
                transform: none;
                margin-right: auto;
            }

            .hero-card {
                display: none;
            }

            .hero-content {
                max-width: 100%;
                text-align: center;
            }

            .hero-badges {
                justify-content: center;
            }

            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .carousel-control-prev {
                left: 0;
            }

            .carousel-control-next {
                right: 0;
            }

            .testimonial-card {
                padding: 32px 24px;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero {
                min-height: 480px;
            }

            .hero-actions .btn-glow,
            .hero-actions .btn-outline-glass {
                width: 100%;
                justify-content: center;
            }

            .trust-bar .trust-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .trust-item {
                padding: 20px 14px;
            }

            .news-card {
                flex-direction: column;
                padding: 16px;
            }

            .news-card .news-thumb {
                width: 100%;
                height: 140px;
            }

            .carousel-control-prev,
            .carousel-control-next {
                display: none;
            }

            .testimonial-card {
                padding: 28px 20px;
            }

            .testimonial-card .quote {
                font-size: 0.9375rem;
            }

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

            .cta-section {
                padding: 64px 0;
            }

            .cta-section .cta-actions .btn-glow,
            .cta-section .cta-actions .btn-outline-glass {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 575.98px) {
            .section {
                padding: 48px 0;
            }

            .notice-bar {
                font-size: 0.75rem;
            }

            .notice-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .hero {
                min-height: 520px;
            }

            .hero-content .h1 {
                font-size: 1.75rem;
            }

            .feature-card {
                padding: 20px 16px;
            }

            .feature-card .feature-img {
                height: 140px;
            }

            .trust-bar .trust-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .trust-item .icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }

            .site-footer {
                padding: 48px 0 24px;
            }

            .footer-bottom {
                font-size: 0.75rem;
                line-height: 1.6;
            }
        }

        @media (min-width: 992px) {
            .navbar-collapse {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
    --bg-deep: #070D18;
    --bg-elev: #0D1626;
    --glass-bg: rgba(18, 32, 52, 0.55);
    --glass-border: rgba(255, 255, 255, 0.12);
    --primary: #2D8CF0;
    --primary-strong: #4DA8FF;
    --accent: #00D9C0;
    --gold: #D9A85A;
    --text-main: #E8EEF7;
    --text-sub: #9AAEC5;
    --text-muted: #5E7391;
    --danger: #FF5D5D;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-badge: 999px;
    --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.18);
    --shadow-hover: 0 16px 44px rgba(0, 0, 0, 0.32), 0 0 0 1px rgba(45, 140, 240, 0.25);
    --glow-primary: 0 0 20px rgba(45, 140, 240, 0.45), 0 0 40px rgba(0, 184, 233, 0.15);
    --transition-base: all 0.3s ease;
    --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-stack);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background-color: var(--bg-deep);
    background-image: radial-gradient(ellipse at 20% 0%, rgba(13, 22, 38, 0.8) 0%, transparent 55%), radial-gradient(ellipse at 80% 100%, rgba(45, 140, 240, 0.06) 0%, transparent 50%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-base);
}
a:hover {
    color: var(--primary-strong);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button,
input,
textarea {
    font-family: var(--font-stack);
}
.container {
    max-width: 1240px;
    padding-left: 24px;
    padding-right: 24px;
}
@media (max-width: 576px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 1040;
    background: rgba(7, 13, 24, 0.85);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid var(--glass-border);
    transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
    box-shadow: 0 2px 24px rgba(45, 140, 240, 0.12);
}
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    position: relative;
    gap: 20px;
}
.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
    flex: 1;
}
.nav-right {
    justify-content: flex-end;
}
.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0;
    flex-shrink: 0;
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-size: 1.1rem;
    box-shadow: 0 4px 18px rgba(45, 140, 240, 0.35);
    transition: var(--transition-base);
}
.navbar-brand:hover .brand-mark {
    box-shadow: 0 6px 24px rgba(45, 140, 240, 0.55);
    transform: translateY(-1px);
}
.brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-sub);
    padding: 8px 2px;
    position: relative;
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
    transition: width 0.3s ease;
}
.nav-link:hover {
    color: var(--primary-strong);
}
.nav-link:hover::after {
    width: 100%;
}
.nav-link.active {
    color: var(--gold);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
    opacity: 1;
}
.navbar-toggler {
    display: none;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-main);
    width: 44px;
    height: 40px;
    border-radius: var(--radius-btn);
    font-size: 1.2rem;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    padding: 0;
    box-shadow: none;
    outline: none;
}
.navbar-toggler:hover,
.navbar-toggler:focus {
    border-color: var(--primary);
    color: var(--primary-strong);
    box-shadow: 0 0 0 3px rgba(45, 140, 240, 0.15);
}
.navbar-toggler i {
    line-height: 1;
}
.navbar-collapse {
    background: rgba(7, 13, 24, 0.95);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-card);
    padding: 20px 24px;
    margin-top: 8px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.navbar-collapse .nav-link {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition-base);
}
.navbar-collapse .nav-link:hover {
    background: rgba(45, 140, 240, 0.1);
    padding-left: 20px;
}
.navbar-collapse .nav-link.active {
    background: rgba(217, 168, 90, 0.1);
    color: var(--gold);
}
@media (max-width: 991px) {
    .navbar {
        flex-wrap: wrap;
        padding: 12px 0;
    }
    .nav-left,
    .nav-right {
        display: none;
    }
    .navbar-brand {
        margin: 0 auto;
    }
    .navbar-toggler {
        display: inline-flex;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
    }
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--primary-strong);
    outline-offset: 2px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    padding: 12px 28px;
    font-size: 0.95rem;
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.4;
}
.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), #00B8D9);
    color: #fff;
    box-shadow: var(--glow-primary);
}
.btn-primary-custom:hover {
    color: #fff;
    filter: brightness(1.06);
    box-shadow: 0 0 28px rgba(45, 140, 240, 0.55), 0 0 50px rgba(0, 184, 233, 0.2);
    transform: translateY(-1px);
}
.btn-primary-custom:active {
    transform: translateY(1px);
    box-shadow: 0 0 16px rgba(45, 140, 240, 0.35);
}
.btn-ghost {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.btn-ghost:hover {
    border-color: var(--primary-strong);
    background: rgba(45, 140, 240, 0.12);
    color: var(--primary-strong);
}
.text-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 500;
    font-size: 0.9rem;
    background: none;
    border: none;
    padding: 4px 0;
    cursor: pointer;
    transition: var(--transition-base);
}
.text-btn i {
    transition: transform 0.3s ease;
}
.text-btn:hover {
    color: var(--primary-strong);
}
.text-btn:hover i {
    transform: translateX(4px);
}
.top-bar {
    background: rgba(7, 13, 24, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 8px 0;
    font-size: 0.8125rem;
    color: var(--text-sub);
}
.top-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.top-bar-domain {
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.03em;
}
@media (max-width: 576px) {
    .top-bar {
        padding: 6px 0;
    }
    .top-bar-inner {
        justify-content: center;
    }
    .top-bar-domain {
        display: none;
    }
}
.breadcrumb-area {
    padding: 32px 0 8px;
    background: transparent;
}
.breadcrumb-area .breadcrumb {
    margin: 0;
    padding: 0;
    background: transparent;
    font-size: 0.875rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}
.breadcrumb-area .breadcrumb-item {
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
}
.breadcrumb-area .breadcrumb-item a {
    color: var(--text-sub);
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumb-area .breadcrumb-item a:hover {
    color: var(--primary);
}
.breadcrumb-area .breadcrumb-item::before {
    content: '/';
    color: var(--text-muted);
    margin: 0 6px;
    font-size: 0.8rem;
    padding: 0;
}
.breadcrumb-area .breadcrumb-item:first-child::before {
    display: none;
}
.breadcrumb-area .breadcrumb-item.active {
    color: var(--primary);
    max-width: 240px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
@media (max-width: 576px) {
    .breadcrumb-area {
        padding: 20px 0 4px;
    }
}
.article-main {
    padding: 48px 0 72px;
}
.article-wrapper {
    max-width: 960px;
    margin: 0 auto;
}
.article-header {
    text-align: center;
    padding: 32px 0 40px;
}
.article-category {
    display: inline-block;
    background: rgba(45, 140, 240, 0.12);
    color: var(--primary-strong);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-badge);
    padding: 5px 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(45, 140, 240, 0.2);
    letter-spacing: 0.04em;
}
.article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-main);
    margin-bottom: 20px;
    letter-spacing: 0.01em;
    word-break: break-word;
}
.article-desc {
    font-size: 1rem;
    color: var(--text-sub);
    line-height: 1.75;
    max-width: 720px;
    margin: 0 auto 24px;
    padding: 0 16px;
}
.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta i {
    font-size: 0.875rem;
    color: var(--text-muted);
}
.article-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
    margin: 0 0 40px;
}
.article-content {
    max-width: 760px;
    margin: 0 auto;
    color: var(--text-main);
    font-size: 1rem;
    line-height: 1.75;
    word-break: break-word;
}
.article-content p {
    margin-bottom: 24px;
    line-height: 1.75;
    color: var(--text-main);
}
.article-content h2 {
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    font-weight: 700;
    margin: 48px 0 20px;
    color: var(--text-main);
    line-height: 1.4;
}
.article-content h2::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
    margin-top: 12px;
}
.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--text-main);
    line-height: 1.5;
}
.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(45, 140, 240, 0.4);
}
.article-content a:hover {
    color: var(--primary-strong);
    text-decoration-color: var(--primary-strong);
}
.article-content ul,
.article-content ol {
    margin: 0 0 24px;
    padding-left: 1.5em;
    color: var(--text-main);
}
.article-content ul li,
.article-content ol li {
    margin-bottom: 8px;
    line-height: 1.75;
}
.article-content ul li::marker {
    color: var(--accent);
}
.article-content ol li::marker {
    color: var(--gold);
    font-weight: 600;
}
.article-content blockquote {
    margin: 32px 0;
    padding: 20px 24px;
    border-left: 3px solid var(--primary);
    background: var(--bg-elev);
    border-radius: 0 12px 12px 0;
    color: var(--text-sub);
    font-style: normal;
    line-height: 1.75;
}
.article-content blockquote p {
    margin-bottom: 8px;
}
.article-content blockquote p:last-child {
    margin-bottom: 0;
}
.article-content img {
    border-radius: var(--radius-card);
    margin: 32px auto;
    box-shadow: var(--shadow-card);
    max-width: 100%;
    height: auto;
}
.article-content table {
    width: 100%;
    margin: 28px 0;
    border-collapse: collapse;
    font-size: 0.9rem;
    border-radius: 8px;
    overflow: hidden;
    display: block;
    overflow-x: auto;
}
.article-content table th,
.article-content table td {
    border: 1px solid var(--glass-border);
    padding: 12px 16px;
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}
.article-content table th {
    background: var(--bg-elev);
    color: var(--text-main);
    font-weight: 600;
}
.article-content table tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}
.article-content hr {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin: 40px 0;
}
.not-found-wrap {
    text-align: center;
    padding: 100px 24px;
    max-width: 640px;
    margin: 0 auto;
}
.not-found-wrap .icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(45, 140, 240, 0.1);
    border: 1px solid rgba(45, 140, 240, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 24px;
}
.not-found-wrap h1 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-main);
}
.not-found-wrap p {
    color: var(--text-sub);
    font-size: 1rem;
    margin-bottom: 32px;
}
.related-section {
    padding: 72px 0;
    background: var(--bg-elev);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.section-head {
    margin-bottom: 40px;
    text-align: center;
}
.section-head h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.25rem);
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}
.section-head .section-line {
    width: 48px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
    margin: 0 auto;
}
.related-card {
    display: block;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    height: 100%;
    text-decoration: none;
    position: relative;
}
.related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(45, 140, 240, 0.3);
}
.related-cover {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, #0D1626, #16283f);
    display: flex;
    align-items: center;
    justify-content: center;
}
.related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.related-card:hover .related-cover img {
    transform: scale(1.03);
}
.related-body {
    padding: 20px 24px 24px;
}
.related-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-main);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: calc(1.5em * 2);
    transition: color 0.3s;
}
.related-card:hover .related-body h3 {
    color: var(--primary-strong);
}
.related-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}
.related-meta .date {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.related-meta .tag {
    display: inline-block;
    background: rgba(45, 140, 240, 0.12);
    color: var(--text-sub);
    padding: 2px 10px;
    border-radius: var(--radius-badge);
    font-size: 0.75rem;
}
.related-back {
    text-align: center;
    margin-top: 48px;
}
.cta-section {
    padding: 88px 0;
    background: linear-gradient(135deg, rgba(7, 13, 24, 0.92), rgba(13, 22, 38, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.cta-inner {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    padding: 0 24px;
}
.cta-inner h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.25rem);
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}
.cta-inner p {
    color: var(--text-sub);
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.7;
}
.cta-inner .btn-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.cta-domain {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.05em;
}
.site-footer {
    background: rgba(7, 13, 24, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 64px 0 0;
    font-size: 0.875rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .brand-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 1rem;
}
.footer-brand .brand-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
}
.footer-brand p {
    color: var(--text-sub);
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 16px;
    max-width: 320px;
}
.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-sub);
    background: rgba(0, 217, 192, 0.08);
    border-radius: var(--radius-badge);
    padding: 6px 14px;
    border: 1px solid rgba(0, 217, 192, 0.2);
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px rgba(0, 217, 192, 0.6);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}
.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    color: var(--text-sub);
    font-size: 0.875rem;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a:hover {
    color: var(--gold);
    transform: translateX(4px);
}
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.contact-item {
    color: var(--text-sub);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.5;
}
.contact-item i {
    color: var(--text-muted);
    font-size: 0.9rem;
    flex-shrink: 0;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8125rem;
    margin: 0;
    font-variant-numeric: tabular-nums;
}
@media (max-width: 991px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .site-footer {
        padding-top: 40px;
    }
    .article-main {
        padding: 32px 0 48px;
    }
    .article-header {
        padding: 20px 0 28px;
    }
    .article-title {
        font-size: 1.6rem;
    }
    .article-meta {
        gap: 14px;
    }
    .related-section {
        padding: 48px 0;
    }
    .cta-section {
        padding: 56px 0;
    }
}
@media (max-width: 375px) {
    .article-title {
        font-size: 1.4rem;
    }
    .article-meta {
        flex-direction: column;
        gap: 8px;
    }
    .btn-group .btn {
        width: 100%;
    }
}

/* roulang page: category1 */
:root {
            --bg-deep: #070D18;
            --bg-elev: #0D1626;
            --glass-bg: rgba(18, 32, 52, 0.55);
            --glass-border: rgba(255, 255, 255, 0.12);
            --primary: #2D8CF0;
            --primary-strong: #4DA8FF;
            --accent: #00D9C0;
            --gold: #D9A85A;
            --text-main: #E8EEF7;
            --text-sub: #9AAEC5;
            --text-muted: #5E7391;
            --danger: #FF5D5D;
            --radius: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.18);
            --shadow-hover: 0 16px 44px rgba(0, 0, 0, 0.32), 0 0 0 1px rgba(45, 140, 240, 0.25);
            --glow-btn: 0 0 20px rgba(45, 140, 240, 0.45), 0 0 40px rgba(0, 184, 233, 0.15);
            --gradient-btn: linear-gradient(135deg, #2D8CF0, #00B8D9);
            --gradient-underline: linear-gradient(90deg, #D9A85A, #2D8CF0);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-deep);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            transition: all 0.3s ease;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }

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

        .btn-primary-custom:hover {
            color: #fff;
            filter: brightness(1.06);
            box-shadow: 0 0 25px rgba(45, 140, 240, 0.55), 0 0 50px rgba(0, 184, 233, 0.2);
            transform: translateY(-1px);
        }

        .btn-primary-custom:active {
            transform: translateY(1px) scale(0.99);
        }

        .btn-glass {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-main);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .btn-glass:hover {
            border-color: var(--primary-strong);
            color: var(--text-main);
            background: rgba(18, 32, 52, 0.35);
        }

        .btn-glass:active {
            transform: translateY(1px) scale(0.99);
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        .accordion-button:focus-visible {
            outline: 2px solid var(--primary-strong);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(7, 13, 24, 0.85);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-bottom: 1px solid var(--glass-border);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 1px 20px rgba(45, 140, 240, 0.15);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 24px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            text-decoration: none;
        }

        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(45, 140, 240, 0.9), rgba(0, 184, 217, 0.9));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            box-shadow: 0 0 16px rgba(45, 140, 240, 0.35);
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-sub);
            padding: 6px 4px;
            text-decoration: none;
            position: relative;
            transition: color 0.3s ease;
            line-height: 1.4;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--gold), transparent);
            border-radius: 2px;
        }

        .navbar-toggler {
            display: none;
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
            border-radius: 8px;
            padding: 8px 12px;
            color: var(--text-main);
            font-size: 1.25rem;
            line-height: 1;
            order: 2;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-strong);
            outline-offset: 2px;
        }

        .navbar-collapse {
            background: rgba(7, 13, 24, 0.96);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--glass-border);
            border-radius: 12px;
            padding: 16px;
            margin-top: 8px;
            margin-bottom: 16px;
        }

        .navbar-collapse .nav-link {
            padding: 12px 16px;
            border-radius: 8px;
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 500;
            display: block;
        }

        .navbar-collapse .nav-link:hover {
            background: rgba(45, 140, 240, 0.15);
            color: var(--primary-strong);
        }

        .navbar-collapse .nav-link.active {
            color: var(--gold);
            background: rgba(217, 168, 90, 0.08);
        }

        .navbar-collapse .nav-link.active::after {
            display: none;
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background-size: cover;
            background-position: center;
            background-color: var(--bg-elev);
            isolation: isolate;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 13, 24, 0.96) 30%, rgba(7, 13, 24, 0.75) 60%, rgba(13, 22, 38, 0.45));
            z-index: -1;
        }

        .banner-content {
            max-width: 720px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, rgba(217, 168, 90, 0.2), rgba(217, 168, 90, 0.05));
            border: 1px solid rgba(217, 168, 90, 0.4);
            color: var(--gold);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 24px;
        }

        .banner-content h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .banner-desc {
            font-size: 1.125rem;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .banner-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .banner-meta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.8125rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            padding: 8px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        /* ===== 内容面板 ===== */
        .content-panel-section {
            padding: 96px 0;
        }

        .content-panel {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 48px;
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            box-shadow: var(--shadow-card);
        }

        .section-tag {
            display: inline-block;
            background: rgba(0, 217, 192, 0.1);
            border: 1px solid rgba(0, 217, 192, 0.25);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 16px;
        }

        .content-panel h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.25rem);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 24px;
            position: relative;
            padding-bottom: 16px;
        }

        .content-panel h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-underline);
        }

        .content-panel .lead-text {
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .content-panel .sub-text {
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 20px;
            font-size: 0.9375rem;
        }

        .content-list {
            list-style: none;
            padding: 0;
            margin-top: 8px;
        }

        .content-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-main);
            margin-bottom: 12px;
            font-size: 0.9375rem;
        }

        .content-list li i {
            color: var(--accent);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .content-image-wrap {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--glass-border);
        }

        .content-image-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            display: block;
        }

        .content-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 13, 24, 0.4));
            pointer-events: none;
        }

        /* ===== 保障卡片 ===== */
        .feature-section {
            padding: 96px 0;
            background: var(--bg-elev);
        }

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-header .section-tag {
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
            padding-bottom: 16px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-underline);
        }

        .section-header p {
            color: var(--text-sub);
            line-height: 1.75;
        }

        .feature-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius);
            padding: 32px 24px;
            height: 100%;
            text-align: center;
            transition: all 0.3s ease;
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(45, 140, 240, 0.3);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(45, 140, 240, 0.15), rgba(0, 217, 192, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            color: var(--primary);
            margin: 0 auto 16px;
            border: 1px solid rgba(45, 140, 240, 0.2);
        }

        .feature-card:first-child .feature-icon {
            color: var(--gold);
            border-color: rgba(217, 168, 90, 0.3);
            background: linear-gradient(135deg, rgba(217, 168, 90, 0.15), rgba(217, 168, 90, 0.05));
        }

        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
        }

        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 16px;
            overflow: hidden;
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(45, 140, 240, 0.5) !important;
            box-shadow: var(--shadow-card);
        }

        .accordion-button {
            background: transparent !important;
            color: var(--text-main) !important;
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: none !important;
            border: none !important;
            cursor: pointer;
        }

        .accordion-button::after {
            display: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: transparent !important;
            color: var(--text-main) !important;
            box-shadow: none !important;
        }

        .accordion-button:hover {
            color: var(--primary-strong) !important;
        }

        .accordion-button:focus {
            box-shadow: none !important;
            outline: 2px solid var(--primary-strong);
            outline-offset: -2px;
        }

        .accordion-icon {
            font-size: 1.25rem;
            color: var(--text-sub);
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }

        .accordion-button:not(.collapsed) .accordion-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-sub);
            line-height: 1.75;
            font-size: 0.9375rem;
        }

        /* ===== 查询表单 ===== */
        .query-section {
            padding: 96px 0;
            background: var(--bg-elev);
        }

        .query-panel {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 48px;
            max-width: 860px;
            margin: 0 auto;
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            box-shadow: var(--shadow-card);
        }

        .query-panel .section-tag {
            margin-bottom: 12px;
        }

        .query-panel h2 {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .query-panel .form-desc {
            color: var(--text-sub);
            margin-bottom: 32px;
        }

        .form-label {
            font-size: 0.8125rem;
            color: var(--text-sub);
            font-weight: 500;
        }

        .form-control,
        .form-select {
            background: rgba(7, 13, 24, 0.7);
            border: 1px solid var(--glass-border);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--text-main);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            min-height: 48px;
        }

        .form-control:focus,
        .form-select:focus {
            background: rgba(7, 13, 24, 0.85);
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(45, 140, 240, 0.15);
            color: var(--text-main);
        }

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

        .form-select option {
            background: var(--bg-elev);
            color: var(--text-main);
        }

        .form-tip {
            margin-top: 16px;
            font-size: 0.8125rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .form-tip i {
            color: var(--accent);
        }

        .has-error .form-control,
        .has-error .form-select {
            border-color: var(--danger);
            box-shadow: 0 0 0 4px rgba(255, 93, 93, 0.1);
        }

        .has-error .form-label {
            color: var(--danger);
        }

        .query-alert {
            background: rgba(0, 217, 192, 0.08);
            border: 1px solid rgba(0, 217, 192, 0.25);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--accent);
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 120px 0;
            background-size: cover;
            background-position: center;
            background-color: var(--bg-elev);
            text-align: center;
            isolation: isolate;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 13, 24, 0.95), rgba(7, 13, 24, 0.82));
            z-index: -1;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .cta-section .cta-desc {
            font-size: 1.125rem;
            color: var(--text-sub);
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .cta-domain {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.875rem;
            background: rgba(255, 255, 255, 0.05);
            padding: 8px 20px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .cta-domain i {
            color: var(--gold);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(7, 13, 24, 0.6);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .brand-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-sub);
            font-size: 0.875rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .footer-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-sub);
            background: rgba(0, 217, 192, 0.08);
            border: 1px solid rgba(0, 217, 192, 0.2);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(0, 217, 192, 0.6);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .footer-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-sub);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--gold);
        }

        .footer-contact {
            color: var(--text-sub);
            font-size: 0.875rem;
        }

        .footer-contact .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }

        .footer-contact .contact-item i {
            color: var(--primary);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .nav-left,
            .nav-right {
                display: none;
            }

            .navbar-toggler {
                display: inline-block;
            }

            .navbar-brand {
                margin: 0 auto;
            }

            .navbar {
                justify-content: space-between;
            }

            .content-panel {
                padding: 32px;
            }

            .query-panel {
                padding: 32px;
            }

            .page-banner {
                padding: 90px 0 70px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .content-panel-section,
            .feature-section,
            .faq-section,
            .query-section {
                padding: 64px 0;
            }

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

            .content-panel {
                padding: 24px;
            }

            .query-panel {
                padding: 24px;
            }

            .content-image-wrap img {
                height: 240px;
            }

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

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

            .feature-card {
                padding: 24px 18px;
            }
        }

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

            .page-banner {
                padding: 70px 0 56px;
            }

            .banner-content h1 {
                font-size: 1.75rem;
            }

            .banner-desc {
                font-size: 1rem;
            }

            .content-panel-section,
            .feature-section,
            .faq-section,
            .query-section {
                padding: 48px 0;
            }

            .cta-section {
                padding: 64px 0;
            }

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

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

            .accordion-button {
                padding: 16px 16px;
                font-size: 0.9375rem;
            }

            .accordion-body {
                padding: 0 16px 16px;
            }

            .query-panel h2 {
                font-size: 1.375rem;
            }

            .form-tip {
                flex-wrap: wrap;
            }
        }