/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --bg-dark: #12100C;
            --bg-light: #F6F2EA;
            --bg-card: #FFFDF8;
            --primary: #6F513C;
            --accent: #C6A468;
            --accent-hover: #A8874B;
            --line: #E5DCCC;
            --line-dark: #3A332B;
            --text: #3B342C;
            --text-light: #A49A8C;
            --white: #FFFFFF;
            --shadow-hard: 4px 4px 0 rgba(18, 16, 12, 0.12);
            --shadow-hard-hover: 2px 2px 0 rgba(18, 16, 12, 0.2);
            --radius: 2px;
            --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            --space-section-desktop: 96px;
            --space-section-mobile: 64px;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
        }

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

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

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

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

        /* ============ 容器 ============ */
        .container {
            max-width: 1140px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 区块通用 ============ */
        .section {
            padding: var(--space-section-desktop) 0;
        }

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

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

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

        .section-tag {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 3px 10px;
            display: inline-block;
            margin-bottom: 16px;
            background: transparent;
        }

        .section-title {
            font-size: clamp(26px, 3.6vw, 42px);
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
            max-width: 640px;
        }

        .section-dark .section-desc {
            color: var(--text-light);
        }

        /* ============ 导航 ============ */
        .nav-tactical {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(18, 16, 12, 0.85);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line-dark);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-tactical.scrolled {
            background: rgba(18, 16, 12, 0.98);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .nav-tactical .navbar-brand {
            font-size: 16px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: 0.02em;
            padding: 10px 0;
            line-height: 1.3;
        }

        .nav-tactical .navbar-brand .brand-sub {
            font-family: var(--font-mono);
            font-size: 10px;
            color: var(--accent);
            letter-spacing: 0.08em;
            display: block;
        }

        .nav-tactical .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px !important;
            position: relative;
        }

        .nav-tactical .nav-link-num {
            font-family: var(--font-mono);
            font-size: 10px;
            color: var(--accent);
            margin-right: 4px;
            display: inline-block;
        }

        .nav-tactical .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

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

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

        .btn-custom {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius);
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
            text-align: center;
        }

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

        .btn-custom-primary {
            background: var(--accent);
            color: var(--bg-dark);
            border-color: var(--accent);
        }

        .btn-custom-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard);
        }

        .btn-custom-outline {
            background: transparent;
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-custom-outline:hover {
            background: var(--accent);
            color: var(--bg-dark);
            transform: translateY(-2px);
        }

        .nav-cta {
            padding: 8px 20px;
            font-size: 14px;
        }

        .navbar-toggler {
            border: 1px solid var(--line-dark);
            padding: 4px 10px;
            border-radius: var(--radius);
            background: transparent;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .nav-tactical .navbar-collapse {
                background: var(--bg-dark);
                padding: 16px;
                border-bottom: 1px solid var(--line-dark);
                margin-top: 8px;
            }
            .nav-tactical .nav-link {
                padding: 10px 0 !important;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-tactical .nav-cta {
                margin-top: 12px;
                width: 100%;
            }
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 120px 0 80px;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(18, 16, 12, 0.92) 0%, rgba(18, 16, 12, 0.75) 45%, rgba(18, 16, 12, 0.35) 80%, rgba(18, 16, 12, 0.1) 100%);
            z-index: -1;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 4px 12px;
            margin-bottom: 24px;
            background: rgba(18, 16, 12, 0.5);
        }

        .hero-title {
            font-size: clamp(32px, 5vw, 58px);
            font-weight: 900;
            letter-spacing: 0.02em;
            line-height: 1.2;
            color: var(--white);
            margin-bottom: 16px;
        }

        .hero-title .hero-underline {
            display: inline-block;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 4px;
        }

        .hero-subtitle {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            max-width: 560px;
        }

        .hero-meta-item .meta-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-meta-item .meta-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.06em;
            margin-top: 4px;
        }

        .hero-corner-tag {
            position: absolute;
            bottom: 24px;
            right: 24px;
            font-family: var(--font-mono);
            font-size: 11px;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.08em;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 4px 10px;
            clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
        }

        .hero-crosshair {
            position: absolute;
            top: 32px;
            right: 40px;
            width: 40px;
            height: 40px;
            opacity: 0.2;
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: auto;
                padding: 100px 0 60px;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-meta-row {
                gap: 20px;
            }
        }

        /* ============ 痛点板块 ============ */
        .pain-points {
            padding: 96px 0;
        }

        .pain-list {
            margin-top: 40px;
        }

        .pain-item {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--line);
            transition: background 0.3s ease;
            position: relative;
        }

        .pain-item:first-child {
            border-top: 1px solid var(--line);
        }

        .pain-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--line);
            transition: background 0.3s ease;
        }

        .pain-item:hover::before {
            background: var(--accent);
        }

        .pain-item:hover {
            background: rgba(198, 164, 104, 0.04);
        }

        .pain-num {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 2px 8px;
            height: fit-content;
            white-space: nowrap;
            margin-top: 4px;
        }

        .pain-content {
            flex: 1;
        }

        .pain-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .pain-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .pain-item {
                flex-direction: column;
                gap: 8px;
                padding: 20px 0;
            }
            .pain-num {
                align-self: flex-start;
            }
        }

        /* ============ 解决方案 ============ */
        .solution-section {
            background: var(--bg-card);
            padding: 96px 0;
        }

        .solution-head {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-end;
            gap: 24px;
            margin-bottom: 48px;
        }

        .solution-head .section-desc {
            max-width: 420px;
        }

        .solution-steps {
            position: relative;
            padding-left: 0;
        }

        .solution-step {
            display: flex;
            gap: 32px;
            padding: 32px 0;
            border-bottom: 1px solid var(--line);
            align-items: flex-start;
        }

        .solution-step:last-child {
            border-bottom: none;
        }

        .solution-step-num {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            min-width: 80px;
            text-align: right;
        }

        .solution-step-content {
            flex: 1;
            padding-left: 32px;
            border-left: 1px solid var(--line);
        }

        .solution-step-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .solution-step-content p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 520px;
        }

        .solution-image-wrap {
            position: relative;
            margin-top: 40px;
            display: block;
        }

        .solution-image-wrap::before {
            content: '';
            position: absolute;
            top: 8px;
            left: 8px;
            right: -8px;
            bottom: -8px;
            border: 2px solid var(--accent);
            z-index: 0;
        }

        .solution-image-wrap img {
            position: relative;
            z-index: 1;
            width: 100%;
            height: auto;
            display: block;
            filter: sepia(0.15) saturate(0.9);
        }

        @media (max-width: 768px) {
            .solution-step {
                flex-direction: column;
                gap: 12px;
                padding: 24px 0;
            }
            .solution-step-num {
                font-size: 36px;
                text-align: left;
                min-width: auto;
            }
            .solution-step-content {
                padding-left: 16px;
            }
        }

        /* ============ 成果数据 ============ */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            padding: 96px 0;
            color: var(--white);
        }

        .stats-section .corner-label {
            position: absolute;
            top: 24px;
            right: 24px;
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--text-light);
            letter-spacing: 0.15em;
            border: 1px solid var(--line-dark);
            padding: 3px 10px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-top: 48px;
        }

        .stat-item {
            position: relative;
            padding-top: 28px;
            border-top: 1px solid var(--line-dark);
        }

        .stat-item-num-tag {
            position: absolute;
            top: 0;
            left: 0;
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent);
            background: rgba(198, 164, 104, 0.08);
            border: 1px solid var(--accent);
            padding: 1px 6px;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: clamp(48px, 5vw, 72px);
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            letter-spacing: 0.12em;
        }

        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-number {
                font-size: 48px;
            }
        }

        /* ============ 客户证言 ============ */
        .testimonials {
            padding: 96px 0;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-top: 48px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border-left: 4px solid var(--accent);
            padding: 32px;
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            box-shadow: var(--shadow-hard);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hard-hover);
            border-left-color: var(--accent-hover);
        }

        .testimonial-card .client-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            font-family: var(--font-mono);
            font-size: 10px;
            color: var(--text-light);
            border: 1px solid var(--line);
            padding: 2px 8px;
        }

        .testimonial-card .client-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .testimonial-card .client-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: auto;
        }

        .testimonial-card .client-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .testimonial-card .client-role {
            font-size: 12px;
            color: var(--text-light);
        }

        .testimonial-card .stars {
            color: var(--accent);
            font-size: 13px;
            letter-spacing: 2px;
        }

        .testimonial-card .quote-text {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text);
        }

        .testimonial-main {
            grid-column: span 1;
            grid-row: span 2;
            background: var(--bg-card);
        }

        .testimonial-regular {
            grid-column: span 1;
        }

        @media (max-width: 992px) {
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-main {
                grid-column: span 1;
                grid-row: span 1;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-card);
            padding: 96px 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 48px auto 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            padding: 20px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--line);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            padding: 8px 0;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: inherit;
        }

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

        .faq-q-num {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 2px 8px;
            flex-shrink: 0;
        }

        .faq-q-text {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }

        .faq-toggle-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-toggle-icon::before,
        .faq-toggle-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            transition: background 0.3s ease;
        }

        .faq-toggle-icon::before {
            width: 100%;
            height: 2px;
            top: 9px;
            left: 0;
        }

        .faq-toggle-icon::after {
            width: 2px;
            height: 100%;
            left: 9px;
            top: 0;
        }

        .faq-question:hover .faq-toggle-icon {
            transform: rotate(90deg);
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height 0.3s ease, opacity 0.3s ease;
            padding-left: 58px;
            padding-right: 40px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-light);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            opacity: 1;
            padding-top: 8px;
            padding-bottom: 8px;
        }

        @media (max-width: 768px) {
            .faq-answer {
                padding-left: 0;
                padding-right: 0;
            }
        }

        /* ============ CTA 收尾 ============ */
        .cta-final {
            position: relative;
            padding: 96px 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: var(--white);
            isolation: isolate;
        }

        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 16, 12, 0.88);
            z-index: -1;
        }

        .cta-final::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: -1;
        }

        .cta-tag {
            position: absolute;
            top: 24px;
            left: 24px;
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 3px 10px;
        }

        .cta-title {
            font-size: clamp(24px, 3.2vw, 38px);
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
            text-align: center;
        }

        .cta-subtitle {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            text-align: center;
            margin-bottom: 32px;
        }

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

        .cta-note {
            text-align: center;
            margin-top: 32px;
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 0.08em;
        }

        @media (max-width: 768px) {
            .cta-actions .btn-custom {
                width: 100%;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 64px 0 32px;
            border-top: 1px solid var(--line-dark);
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            max-width: 320px;
        }

        .footer-legal {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            line-height: 1.6;
            margin-top: 16px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: var(--text-light);
            transition: color 0.3s ease;
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--text-light);
        }

        .footer-contact p {
            margin-bottom: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            margin-right: 8px;
        }

        .footer-bottom {
            border-top: 1px solid var(--line-dark);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border: 1px solid var(--line-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 16px;
            transition: all 0.3s ease;
            border-radius: 0;
        }

        .footer-social a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        /* ============ 滚动渐入动效 ============ */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .fade-in.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .stat-item {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .stat-item.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .stat-item.is-visible:nth-child(2) {
            transition-delay: 0.1s;
        }

        .stat-item.is-visible:nth-child(3) {
            transition-delay: 0.2s;
        }

        .stat-item.is-visible:nth-child(4) {
            transition-delay: 0.3s;
        }

        /* ============ UTM 声明 ============ */
        .badge-tactical {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.1em;
            padding: 2px 10px;
            border: 1px solid var(--accent);
            color: var(--accent);
            background: transparent;
        }

/* roulang page: index */
/* ============================================================
       西安喝茶高端大选-西安大学生品茶工作室 | 完整视觉系统
       ============================================================ */
    :root {
        --color-bg-light: #F7F4EF;
        --color-bg-dark: #181A1D;
        --color-bg-deep: #111316;
        --color-card-dark: #1F2227;
        --color-card-light: #FFFFFF;
        --color-card-testi: #212529;
        --color-card-testi-2: #1B1E22;
        --text-primary-dark: #F2EEE6;
        --text-primary-light: #1C1E22;
        --text-secondary-dark: #A5A29A;
        --text-secondary-light: #5C5F66;
        --color-accent: #C59A5B;
        --color-accent-hover: #B3894B;
        --color-accent-dim: rgba(197, 154, 91, 0.12);
        --color-accent-glow: rgba(197, 154, 91, 0.25);
        --color-accent-badge: rgba(197, 154, 91, 0.08);
        --color-aux: #6F8B6A;
        --color-border-dark: #33373D;
        --color-border-light: #E2DCD0;
        --color-border-soft: #2C2F34;
        --stroke-btn: rgba(242, 238, 230, 0.6);

        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        --font-mono: "SF Mono", "JetBrains Mono", Consolas, monospace;

        --radius-card: 8px;
        --radius-badge: 20px;
        --radius-accordion: 6px;
        --section-padding: 110px;
        --shadow-card-light: 0 2px 8px rgba(24, 26, 29, 0.06);
        --shadow-card-light-hover: 0 10px 30px rgba(24, 26, 29, 0.10);
        --shadow-card-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
        --shadow-btn-hover: 0 4px 20px rgba(197, 154, 91, 0.25);
        --transition-standard: 0.25s ease;
        --transition-smooth: 0.6s ease;
    }

    /* --- Reset & Base --- */
    * , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-primary-light);
        background: var(--color-bg-light);
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; object-fit: cover; }
    a { text-decoration: none; color: inherit; transition: color var(--transition-standard); }
    a:hover { color: var(--color-accent); }
    ul, ol { list-style: none; }
    button { font-family: inherit; border: none; background: none; cursor: pointer; }

    /* --- Container --- */
    .container-custom {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 32px;
    }
    @media (max-width: 768px) {
        .container-custom { padding: 0 20px; }
    }

    /* --- Section Base --- */
    section {
        position: relative;
        padding: var(--section-padding) 0;
    }
    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--color-accent);
        margin-bottom: 16px;
    }
    .section-tag::before {
        content: '';
        width: 20px;
        height: 1.5px;
        background: var(--color-accent);
        display: inline-block;
    }
    .section-title {
        font-size: clamp(26px, 4vw, 40px);
        font-weight: 700;
        line-height: 1.25;
        color: inherit;
        letter-spacing: 0.5px;
        margin-bottom: 14px;
    }
    .section-subtitle {
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-secondary-light);
        max-width: 560px;
    }

    /* --- Reveal Animations --- */
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity var(--transition-smooth), transform var(--transition-smooth);
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.08s; }
    .reveal-delay-2 { transition-delay: 0.16s; }
    .reveal-delay-3 { transition-delay: 0.24s; }

    @media (prefers-reduced-motion: reduce) {
        *, *::before, *::after {
            animation-duration: 0.1s !important;
            transition-duration: 0.1s !important;
        }
        .reveal {
            opacity: 1;
            transform: none;
        }
        .btn-amber::after, .btn-outline::after { display: none; }
        html { scroll-behavior: auto; }
    }

    /* ============================================================
       BLOCK 0 — 顶部导航
       ============================================================ */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(22, 24, 28, 0.92);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transition: background var(--transition-standard), box-shadow var(--transition-standard);
    }
    .site-header.scrolled {
        background: rgba(16, 18, 20, 0.98);
        box-shadow: 0 0 0 1px rgba(197, 154, 91, 0.18);
    }
    .site-header .navbar {
        min-height: 72px;
        padding: 0;
        transition: min-height var(--transition-standard);
    }
    .site-header.scrolled .navbar { min-height: 60px; }

    .navbar-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 0;
        margin-right: 24px;
    }
    .navbar-brand .brand-icon svg { display: block; }
    .navbar-brand .brand-text {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 1px;
        color: var(--text-primary-dark);
        white-space: nowrap;
        transition: color var(--transition-standard);
    }
    .navbar-brand:hover .brand-text { color: var(--color-accent); }

    .navbar-nav {
        gap: 4px;
        margin: 0 auto;
    }
    .navbar-nav .nav-link {
        color: rgba(242, 238, 230, 0.72);
        font-size: 15px;
        font-weight: 400;
        padding: 8px 14px !important;
        position: relative;
        letter-spacing: 0.3px;
        transition: color var(--transition-standard);
    }
    .navbar-nav .nav-link::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 14px;
        right: 14px;
        height: 2px;
        background: var(--color-accent);
        transform: scaleX(0);
        transition: transform var(--transition-standard);
        transform-origin: left;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
        color: #FFFFFF;
    }
    .navbar-nav .nav-link:hover::after,
    .navbar-nav .nav-link.active::after {
        transform: scaleX(1);
    }

    .btn-nav-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 44px;
        padding: 0 28px;
        background: var(--color-accent);
        color: var(--color-bg-dark) !important;
        font-size: 15px;
        font-weight: 600;
        letter-spacing: 1px;
        border-radius: 0;
        clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
        position: relative;
        overflow: hidden;
        transition: background var(--transition-standard), color var(--transition-standard);
        white-space: nowrap;
    }
    .btn-nav-cta::after {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 50%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: left 0.5s ease;
    }
    .btn-nav-cta:hover {
        background: var(--color-bg-dark);
        color: var(--color-accent) !important;
    }
    .btn-nav-cta:hover::after { left: 150%; }

    .navbar-toggler {
        border: none;
        padding: 8px;
        width: 44px;
        height: 44px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
    }
    .navbar-toggler span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-primary-dark);
        transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .navbar-toggler[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .navbar-toggler[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .navbar-toggler[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    @media (max-width: 991.98px) {
        .navbar-collapse {
            background: rgba(16, 18, 20, 0.98);
            padding: 0 16px 20px;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
            margin-top: 8px;
        }
        .navbar-collapse .btn-nav-cta {
            width: 100%;
            height: 48px;
            margin-bottom: 16px;
            order: -1;
        }
        .navbar-nav {
            flex-direction: row;
            flex-wrap: wrap;
            gap: 0;
            padding: 0;
            margin: 0;
        }
        .navbar-nav .nav-link {
            width: 50%;
            padding: 12px 8px !important;
            color: rgba(242, 238, 230, 0.8);
            font-size: 15px;
        }
        .navbar-nav .nav-link::after { display: none; }
        .navbar-nav .nav-link:hover { color: var(--color-accent); }
    }

    /* ============================================================
       BLOCK 1 — 首屏 Hero
       ============================================================ */
    .hero-section {
        background-color: var(--color-bg-dark);
        background-image:
            linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
        background-size: 60px 60px;
        min-height: min(88vh, 860px);
        display: flex;
        align-items: center;
        padding-top: 140px;
        padding-bottom: 80px;
        color: var(--text-primary-dark);
        overflow: hidden;
    }
    .hero-section::before {
        content: '';
        position: absolute;
        top: 80px;
        right: 20px;
        width: 200px;
        height: 200px;
        background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M0 0 L24 0 M0 0 L0 24 M100 76 L100 100 M76 100 L100 100' stroke='%23C59A5B' stroke-width='1.5' fill='none' opacity='0.4'/%3E%3C/svg%3E");
        opacity: 0.18;
        pointer-events: none;
    }
    .hero-section::after {
        content: '';
        position: absolute;
        bottom: 40px;
        left: 3%;
        width: 150px;
        height: 150px;
        background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M0 0 L24 0 M0 0 L0 24 M100 76 L100 100 M76 100 L100 100' stroke='%23C59A5B' stroke-width='1.5' fill='none' opacity='0.3'/%3E%3C/svg%3E");
        opacity: 0.12;
        pointer-events: none;
    }

    .hero-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 2px;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 20px;
        position: relative;
    }
    .hero-label::before {
        content: '';
        width: 28px;
        height: 1px;
        background: var(--color-accent);
    }

    .hero-title {
        font-size: clamp(34px, 5vw, 58px);
        font-weight: 800;
        line-height: 1.15;
        letter-spacing: 1px;
        color: var(--text-primary-dark);
        margin-bottom: 20px;
    }
    .hero-title .accent { color: var(--color-accent); }

    .hero-subtitle {
        font-size: 17px;
        line-height: 1.8;
        color: var(--text-secondary-dark);
        max-width: 520px;
        margin-bottom: 32px;
    }

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

    .btn-amber {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        padding: 0 36px;
        background: var(--color-accent);
        color: var(--color-bg-dark);
        font-size: 16px;
        font-weight: 600;
        letter-spacing: 1px;
        border-radius: 0;
        clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
        position: relative;
        overflow: hidden;
        transition: background var(--transition-standard), color var(--transition-standard), box-shadow var(--transition-standard);
    }
    .btn-amber::after {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 40%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
        transition: left 0.5s ease;
    }
    .btn-amber:hover {
        background: var(--color-accent-hover);
        color: #FFFFFF;
        box-shadow: var(--shadow-btn-hover);
    }
    .btn-amber:hover::after { left: 150%; }

    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        padding: 0 36px;
        background: transparent;
        color: var(--text-primary-dark);
        font-size: 16px;
        font-weight: 600;
        letter-spacing: 1px;
        border: 1px solid var(--stroke-btn);
        border-radius: 0;
        position: relative;
        overflow: hidden;
        transition: border-color var(--transition-standard), color var(--transition-standard);
    }
    .btn-outline:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
    }

    .hero-visual-wrap {
        position: relative;
        margin-left: 20px;
    }
    .hero-visual {
        position: relative;
        border-radius: var(--radius-card);
        overflow: hidden;
        aspect-ratio: 4 / 3;
    }
    .hero-visual img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .hero-visual::before {
        content: '';
        position: absolute;
        top: 12px;
        left: 12px;
        width: 28px;
        height: 28px;
        border-top: 2px solid var(--color-accent);
        border-left: 2px solid var(--color-accent);
        z-index: 2;
        pointer-events: none;
    }
    .hero-visual::after {
        content: '';
        position: absolute;
        bottom: 12px;
        right: 12px;
        width: 28px;
        height: 28px;
        border-bottom: 2px solid var(--color-accent);
        border-right: 2px solid var(--color-accent);
        z-index: 2;
        pointer-events: none;
    }
    .hero-visual .corner-tr {
        position: absolute;
        top: 12px;
        right: 12px;
        width: 28px;
        height: 28px;
        border-top: 2px solid var(--color-accent);
        border-right: 2px solid var(--color-accent);
        z-index: 2;
    }
    .hero-visual .corner-bl {
        position: absolute;
        bottom: 12px;
        left: 12px;
        width: 28px;
        height: 28px;
        border-bottom: 2px solid var(--color-accent);
        border-left: 2px solid var(--color-accent);
        z-index: 2;
    }

    .hero-caption {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 16px;
        font-size: 13px;
        font-family: var(--font-mono);
        color: var(--text-secondary-dark);
        letter-spacing: 1px;
    }
    .hero-caption::before {
        content: '';
        width: 4px;
        height: 16px;
        background: var(--color-accent);
        border-radius: 1px;
    }

    /* Crosshair Decoration */
    .crosshair-svg {
        position: absolute;
        top: 50%;
        right: -40px;
        transform: translateY(-50%);
        opacity: 0.12;
        pointer-events: none;
        width: 320px;
        height: 320px;
    }
    @media (max-width: 1199px) {
        .crosshair-svg { display: none; }
    }

    /* Hero Data Metrics */
    .hero-metrics {
        margin-top: 56px;
        border-top: 1px solid var(--color-border-dark);
        padding-top: 28px;
    }
    .hero-metrics .metric-item {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .hero-metrics .metric-num {
        font-family: var(--font-mono);
        font-size: 32px;
        font-weight: 700;
        color: #FFFFFF;
        line-height: 1.2;
    }
    .hero-metrics .metric-line {
        width: 32px;
        height: 2px;
        background: var(--color-accent);
    }
    .hero-metrics .metric-label {
        font-size: 12px;
        color: rgba(242, 238, 230, 0.55);
        letter-spacing: 1px;
    }
    @media (max-width: 767.98px) {
        .hero-metrics { margin-top: 36px; }
        .hero-metrics .metric-num { font-size: 26px; }
    }

    /* ============================================================
       BLOCK 2 — 痛点区
       ============================================================ */
    .pain-section {
        background: var(--color-bg-light);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }
    .pain-section .section-title { color: var(--text-primary-light); }

    .pain-card {
        background: var(--color-card-light);
        border-radius: var(--radius-card);
        padding: 28px 30px;
        border-left: 3px solid var(--color-accent);
        box-shadow: var(--shadow-card-light);
        margin-bottom: 20px;
        transition: box-shadow var(--transition-standard), transform var(--transition-standard);
    }
    .pain-card:hover {
        box-shadow: var(--shadow-card-light-hover);
        transform: translateY(-3px);
    }
    .pain-card .pain-num {
        font-family: var(--font-mono);
        font-size: 13px;
        color: var(--color-accent);
        letter-spacing: 2px;
        display: block;
        margin-bottom: 4px;
    }
    .pain-card h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-primary-light);
        margin-bottom: 8px;
    }
    .pain-card p {
        font-size: 14px;
        color: var(--text-secondary-light);
        line-height: 1.7;
        margin-bottom: 0;
    }

    .pain-visual {
        position: relative;
        margin-top: 40px;
        height: 100%;
        min-height: 360px;
        border-radius: var(--radius-card);
        overflow: hidden;
        background-image: url('/assets/images/backpic/back-2.jpg');
        background-size: cover;
        background-position: center;
    }
    .pain-visual::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(24, 26, 29, 0.88), rgba(24, 26, 29, 0.55));
    }
    .pain-visual .overlay-content {
        position: relative;
        z-index: 2;
        padding: 40px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        height: 100%;
        gap: 24px;
    }
    .pain-compare {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .pain-compare .old-item,
    .pain-compare .new-item {
        padding: 16px;
        border-radius: 6px;
        font-size: 14px;
        line-height: 1.7;
    }
    .pain-compare .old-item {
        background: rgba(0, 0, 0, 0.25);
        border: 1px solid rgba(255, 255, 255, 0.1);
        color: var(--text-secondary-dark);
    }
    .pain-compare .new-item {
        background: var(--color-accent-badge);
        border: 1px solid rgba(197, 154, 91, 0.35);
        color: var(--text-primary-dark);
    }
    .pain-compare .old-item h4,
    .pain-compare .new-item h4 {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 6px;
    }
    .pain-compare .old-item p,
    .pain-compare .new-item p {
        font-size: 13px;
        margin: 0;
    }
    .pain-compare .divider-arrow {
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--color-accent);
        font-size: 20px;
    }
    .pain-visual .vs-label {
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 3px;
        color: var(--color-accent);
    }
    @media (max-width: 991.98px) {
        .pain-visual { margin-top: 24px; min-height: 300px; }
    }

    /* ============================================================
       BLOCK 3 — 解决方案区
       ============================================================ */
    .solution-section {
        background: var(--color-bg-dark);
        color: var(--text-primary-dark);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }
    .solution-section .section-subtitle { color: var(--text-secondary-dark); }

    .solution-main-visual {
        position: relative;
        border-radius: var(--radius-card);
        overflow: hidden;
        width: 85%;
        max-width: 900px;
        margin: 48px auto 0;
        aspect-ratio: 16 / 9;
        box-shadow: var(--shadow-card-dark);
    }
    .solution-main-visual img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .solution-main-visual::before {
        content: '';
        position: absolute;
        top: 14px;
        left: 14px;
        width: 30px;
        height: 30px;
        border-top: 2px solid var(--color-accent);
        border-left: 2px solid var(--color-accent);
        z-index: 2;
    }
    .solution-main-visual::after {
        content: '';
        position: absolute;
        bottom: 14px;
        right: 14px;
        width: 30px;
        height: 30px;
        border-bottom: 2px solid var(--color-accent);
        border-right: 2px solid var(--color-accent);
        z-index: 2;
    }
    .solution-main-visual .corner-tr {
        position: absolute;
        top: 14px;
        right: 14px;
        width: 30px;
        height: 30px;
        border-top: 2px solid var(--color-accent);
        border-right: 2px solid var(--color-accent);
        z-index: 2;
    }
    .solution-main-visual .corner-bl {
        position: absolute;
        bottom: 14px;
        left: 14px;
        width: 30px;
        height: 30px;
        border-bottom: 2px solid var(--color-accent);
        border-left: 2px solid var(--color-accent);
        z-index: 2;
    }
    .solution-figcaption {
        text-align: center;
        font-size: 13px;
        font-family: var(--font-mono);
        color: var(--text-secondary-dark);
        margin-top: 14px;
        letter-spacing: 1px;
    }

    .service-card-solution {
        background: transparent;
        border: 1px solid var(--color-border-dark);
        border-radius: var(--radius-card);
        padding: 22px;
        transition: border-color var(--transition-standard), transform var(--transition-standard), background var(--transition-standard);
        position: relative;
        overflow: hidden;
    }
    .service-card-solution::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(197, 154, 91, 0.06), transparent);
        transition: left 0.6s ease;
        pointer-events: none;
    }
    .service-card-solution:hover {
        border-color: var(--color-accent);
        transform: translateY(-4px);
        background: rgba(197, 154, 91, 0.04);
    }
    .service-card-solution:hover::before { left: 100%; }
    .service-card-solution .service-icon {
        color: var(--color-accent);
        margin-bottom: 12px;
    }
    .service-card-solution h4 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-primary-dark);
        margin-bottom: 6px;
    }
    .service-card-solution p {
        font-size: 13px;
        color: var(--text-secondary-dark);
        line-height: 1.6;
        margin: 0;
    }
    .service-card-solution.top-left { transform: translateY(-16px) translateX(-10px); }
    .service-card-solution.top-left:hover { transform: translateY(-20px) translateX(-10px); }
    .service-card-solution.bottom-left { transform: translateY(16px) translateX(-10px); }
    .service-card-solution.bottom-left:hover { transform: translateY(12px) translateX(-10px); }
    .service-card-solution.top-right { transform: translateY(-16px) translateX(10px); }
    .service-card-solution.top-right:hover { transform: translateY(-20px) translateX(10px); }
    .service-card-solution.bottom-right { transform: translateY(16px) translateX(10px); }
    .service-card-solution.bottom-right:hover { transform: translateY(12px) translateX(10px); }

    .solution-badge-strip {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 40px;
        flex-wrap: wrap;
    }
    .badge-deco {
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 2px;
        color: rgba(242, 238, 230, 0.35);
        border: 1px solid rgba(242, 238, 230, 0.12);
        padding: 6px 16px;
        border-radius: 20px;
    }

    @media (max-width: 991.98px) {
        .solution-main-visual { width: 100%; }
        .service-card-solution.top-left,
        .service-card-solution.bottom-left,
        .service-card-solution.top-right,
        .service-card-solution.bottom-right {
            transform: none;
        }
        .service-card-solution.top-left:hover,
        .service-card-solution.bottom-left:hover,
        .service-card-solution.top-right:hover,
        .service-card-solution.bottom-right:hover {
            transform: translateY(-4px);
        }
    }

    /* ============================================================
       BLOCK 4 — 成果区
       ============================================================ */
    .results-section {
        background: var(--color-bg-light);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }

    .results-list {
        margin-top: 20px;
    }
    .results-list .result-item {
        display: flex;
        gap: 24px;
        padding: 28px 0;
        border-bottom: 1px solid var(--color-border-light);
        transition: transform var(--transition-standard);
    }
    .results-list .result-item:last-child {
        border-bottom: none;
    }
    .results-list .result-item:hover {
        transform: translateX(6px);
    }
    .results-list .result-num {
        font-family: var(--font-mono);
        font-size: 40px;
        font-weight: 700;
        color: rgba(28, 30, 34, 0.12);
        line-height: 1;
        min-width: 64px;
        transition: color var(--transition-standard);
    }
    .results-list .result-item:hover .result-num {
        color: var(--color-accent);
    }
    .results-list .result-content h4 {
        font-size: 20px;
        font-weight: 600;
        color: var(--text-primary-light);
        margin-bottom: 6px;
    }
    .results-list .result-content p {
        font-size: 14px;
        color: var(--text-secondary-light);
        line-height: 1.6;
        margin: 0;
    }

    .badge-amber-pill {
        display: inline-flex;
        align-items: center;
        height: 28px;
        padding: 0 14px;
        border-radius: var(--radius-badge);
        background: var(--color-accent-badge);
        border: 1px solid var(--color-accent);
        color: var(--color-accent-hover);
        font-size: 13px;
        font-weight: 400;
        white-space: nowrap;
    }
    .results-badge-row {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
        margin-top: 32px;
    }

    .timeline-compare {
        display: flex;
        align-items: center;
        gap: 24px;
        margin-top: 40px;
        padding: 24px 0;
        border-top: 1px solid var(--color-border-light);
    }
    .timeline-compare .tl-item {
        flex: 1;
    }
    .timeline-compare .tl-item .tl-label {
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 2px;
        color: var(--color-accent);
        margin-bottom: 6px;
    }
    .timeline-compare .tl-item h5 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary-light);
        margin-bottom: 4px;
    }
    .timeline-compare .tl-item p {
        font-size: 13px;
        color: var(--text-secondary-light);
        margin: 0;
    }
    .timeline-compare .tl-arrow {
        color: var(--color-accent);
        font-size: 20px;
        flex-shrink: 0;
    }
    @media (max-width: 767.98px) {
        .timeline-compare { flex-direction: column; gap: 12px; }
        .timeline-compare .tl-arrow { transform: rotate(90deg); }
    }

    /* ============================================================
       BLOCK 5 — 客户证言区
       ============================================================ */
    .testimonials-section {
        background: var(--color-card-testi-2);
        color: var(--text-primary-dark);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }
    .testimonials-section .section-subtitle { color: var(--text-secondary-dark); }

    .testimonial-main {
        background: var(--color-card-testi);
        border-radius: var(--radius-card);
        padding: 44px;
        max-width: 920px;
        margin: 40px auto 0;
        position: relative;
        border: 1px solid var(--color-border-dark);
        transition: border-color var(--transition-standard), transform var(--transition-standard);
        box-shadow: var(--shadow-card-dark);
    }
    .testimonial-main:hover {
        border-color: #8A734F;
        transform: translateY(-6px);
    }
    .testimonial-main .quote-mark {
        font-size: 92px;
        line-height: 0.5;
        font-family: Georgia, serif;
        color: var(--color-accent);
        opacity: 0.6;
        margin-bottom: 0;
        display: block;
        height: 50px;
    }
    .testimonial-main .testi-text {
        font-size: 20px;
        line-height: 1.9;
        color: rgba(242, 238, 230, 0.92);
        margin-bottom: 24px;
    }
    .testimonial-main .testi-author {
        display: flex;
        align-items: center;
        gap: 16px;
        justify-content: flex-end;
    }
    .avatar-circle {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--color-accent);
        color: var(--color-bg-dark);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 700;
    }
    .testimonial-main .author-info {
        text-align: right;
    }
    .testimonial-main .author-name {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-primary-dark);
    }
    .testimonial-main .author-role {
        font-size: 13px;
        color: var(--text-secondary-dark);
    }
    .testimonial-main .author-stars {
        color: var(--color-accent);
        letter-spacing: 2px;
        font-size: 14px;
    }
    .testimonial-main .avatar-circle.large { width: 48px; height: 48px; font-size: 20px; }

    .testimonial-small-cards {
        margin-top: 32px;
    }
    .testimonial-small-cards .card-item {
        background: var(--color-card-testi-2);
        border: 1px solid var(--color-border-dark);
        border-radius: var(--radius-card);
        padding: 24px;
        height: 100%;
        position: relative;
        transition: border-color var(--transition-standard), transform var(--transition-standard);
    }
    .testimonial-small-cards .card-item:hover {
        border-color: #8A734F;
        transform: translateY(-4px);
    }
    .testimonial-small-cards .card-item .avatar-circle {
        width: 40px;
        height: 40px;
        font-size: 16px;
        margin-bottom: 14px;
    }
    .testimonial-small-cards .card-item p {
        font-size: 15px;
        line-height: 1.7;
        color: rgba(242, 238, 230, 0.85);
        margin-bottom: 16px;
    }
    .testimonial-small-cards .card-item .author-name {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-primary-dark);
    }
    .testimonial-small-cards .card-item .author-role {
        font-size: 12px;
        color: var(--text-secondary-dark);
    }
    .testimonial-small-cards .card-item .author-stars {
        color: var(--color-accent);
        font-size: 12px;
        letter-spacing: 1px;
        margin-top: 6px;
    }

    /* ============================================================
       BLOCK 6 — CTA 转化区
       ============================================================ */
    .cta-section {
        background: linear-gradient(#1B1E22, #111316);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
        text-align: center;
        color: var(--text-primary-dark);
        position: relative;
        overflow: hidden;
    }
    .cta-section .cta-decoration {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 380px;
        height: 380px;
        pointer-events: none;
        opacity: 0.25;
    }
    .cta-section .cta-decoration svg { width: 100%; height: 100%; }
    @media (max-width: 767.98px) {
        .cta-section .cta-decoration { display: none; }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 20px;
            right: 20px;
            width: 24px;
            height: 24px;
            border-top: 2px solid var(--color-accent);
            border-right: 2px solid var(--color-accent);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: 20px;
            left: 20px;
            width: 24px;
            height: 24px;
            border-bottom: 2px solid var(--color-accent);
            border-left: 2px solid var(--color-accent);
        }
    }

    .cta-title {
        font-size: clamp(26px, 4vw, 40px);
        font-weight: 700;
        line-height: 1.25;
        margin-bottom: 16px;
    }
    .cta-subtitle {
        font-size: 16px;
        color: var(--text-secondary-dark);
        margin-bottom: 36px;
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

    .cta-time-slots {
        display: flex;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
        margin-bottom: 32px;
    }
    .time-slot-pill {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 20px;
        border-radius: 20px;
        border: 1px solid rgba(242, 238, 230, 0.2);
        font-size: 13px;
        color: rgba(242, 238, 230, 0.75);
        background: rgba(255, 255, 255, 0.02);
    }
    .time-slot-pill .dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--color-aux);
    }

    .cta-buttons {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }
    .cta-buttons .btn-amber,
    .cta-buttons .btn-outline {
        min-width: 200px;
        height: 56px;
    }
    .cta-note {
        font-size: 13px;
        color: rgba(242, 238, 230, 0.35);
        margin-top: 20px;
    }

    /* ============================================================
       BLOCK 7 — FAQ 常见问题
       ============================================================ */
    .faq-section {
        background: var(--color-bg-light);
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }
    .faq-section .section-title { color: var(--text-primary-light); }

    .contact-card {
        background: var(--color-card-light);
        border-radius: var(--radius-card);
        padding: 32px;
        border-left: 3px solid var(--color-accent);
        box-shadow: var(--shadow-card-light);
        margin-top: 32px;
    }
    .contact-card h4 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-primary-light);
        margin-bottom: 16px;
    }
    .contact-card ul li {
        display: flex;
        flex-direction: column;
        padding: 10px 0;
        border-bottom: 1px solid rgba(226, 220, 208, 0.6);
    }
    .contact-card ul li:last-child { border-bottom: none; }
    .contact-card ul li .label {
        font-size: 12px;
        color: var(--color-accent);
        font-family: var(--font-mono);
        letter-spacing: 1px;
        margin-bottom: 2px;
    }
    .contact-card ul li .value {
        font-size: 14px;
        color: var(--text-primary-light);
    }

    .accordion-custom {
        --bs-accordion-border-color: var(--color-border-light);
        --bs-accordion-bg: var(--color-card-light);
        --bs-accordion-color: var(--text-primary-light);
        --bs-accordion-border-radius: var(--radius-accordion);
        --bs-accordion-inner-border-radius: var(--radius-accordion);
        --bs-accordion-btn-color: var(--text-primary-light);
        --bs-accordion-btn-bg: var(--color-card-light);
        --bs-accordion-btn-focus-box-shadow: none;
        --bs-accordion-active-bg: var(--color-card-light);
        --bs-accordion-active-color: var(--color-accent);
    }
    .accordion-custom .accordion-item {
        border: 1px solid var(--color-border-light);
        border-radius: var(--radius-accordion) !important;
        margin-bottom: 12px;
        overflow: hidden;
        background: var(--color-card-light);
        box-shadow: 0 1px 4px rgba(24, 26, 29, 0.03);
    }
    .accordion-custom .accordion-item:last-child { margin-bottom: 0; }
    .accordion-custom .accordion-button {
        padding: 22px 24px;
        font-size: 17px;
        font-weight: 600;
        color: var(--text-primary-light);
        background: var(--color-card-light);
        box-shadow: none !important;
        position: relative;
        transition: color var(--transition-standard);
    }
    .accordion-custom .accordion-button::after {
        content: '+';
        background: none;
        width: auto;
        height: auto;
        font-size: 24px;
        font-weight: 400;
        color: var(--color-accent);
        transform: none;
        transition: transform var(--transition-standard);
        font-family: var(--font-sans);
    }
    .accordion-custom .accordion-button:not(.collapsed) {
        color: var(--color-accent);
        background: var(--color-card-light);
    }
    .accordion-custom .accordion-button:not(.collapsed)::after {
        transform: rotate(45deg);
    }
    .accordion-custom .accordion-button:hover { color: var(--color-accent); }
    .accordion-custom .accordion-body {
        background: #FCFAF6;
        padding: 0 24px 22px;
        font-size: 15px;
        line-height: 1.9;
        color: var(--text-secondary-light);
        border-top: 1px solid rgba(226, 220, 208, 0.4);
    }
    .accordion-custom .accordion-collapse {
        border-radius: 0 !important;
    }

    /* ============================================================
       BLOCK 8 — 页脚
       ============================================================ */
    .site-footer {
        background: #14161A;
        color: rgba(242, 238, 230, 0.8);
        padding-top: 72px;
        border-top: 1px solid rgba(197, 154, 91, 0.5);
    }
    .site-footer .footer-brand {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 1px;
        color: var(--text-primary-dark);
        display: block;
        margin-bottom: 12px;
    }
    .site-footer .footer-desc {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-secondary-dark);
        margin-bottom: 0;
    }
    .site-footer h5 {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-primary-dark);
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    .site-footer ul li {
        line-height: 2.4;
    }
    .site-footer ul li a {
        color: rgba(242, 238, 230, 0.6);
        font-size: 14px;
        position: relative;
        transition: color var(--transition-standard);
    }
    .site-footer ul li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 1px;
        background: var(--color-accent);
        transition: width var(--transition-standard);
    }
    .site-footer ul li a:hover {
        color: #FFFFFF;
    }
    .site-footer ul li a:hover::after { width: 100%; }
    .site-footer .footer-contact li {
        font-size: 14px;
        color: rgba(242, 238, 230, 0.6);
        line-height: 2.2;
        padding: 2px 0;
    }
    .site-footer .footer-contact li .ft-label {
        color: var(--color-accent);
        font-size: 12px;
        font-family: var(--font-mono);
        letter-spacing: 1px;
        margin-right: 6px;
    }
    .site-footer .footer-bottom {
        margin-top: 56px;
        border-top: 1px solid var(--color-border-soft);
        padding: 24px 0;
    }
    .site-footer .footer-bottom p {
        font-size: 13px;
        color: rgba(242, 238, 230, 0.4);
        margin: 0;
        text-align: center;
    }
    @media (max-width: 767.98px) {
        .site-footer .footer-column { margin-bottom: 32px; }
    }

    /* ============================================================
       响应式细化
       ============================================================ */
    @media (max-width: 1199.98px) {
        :root { --section-padding: 80px; }
        .hero-metrics { margin-top: 40px; }
    }
    @media (max-width: 991.98px) {
        :root { --section-padding: 80px; }
        .hero-section { padding-top: 120px; }
        .hero-visual-wrap { margin-left: 0; margin-top: 32px; }
        .solution-section .service-card-solution { margin-bottom: 16px; }
    }
    @media (max-width: 767.98px) {
        :root { --section-padding: 64px; }
        .hero-section { padding-top: 110px; }
        .hero-title { font-size: 34px; line-height: 1.2; }
        .hero-subtitle { font-size: 15px; }
        .hero-buttons .btn-amber,
        .hero-buttons .btn-outline { width: 100%; }
        .pain-card { padding: 20px 22px; }
        .pain-visual .overlay-content { padding: 24px; }
        .solution-main-visual { aspect-ratio: 4 / 3; }
        .results-list .result-num { font-size: 28px; min-width: 48px; }
        .testimonial-main { padding: 24px; }
        .testimonial-main .testi-text { font-size: 17px; }
        .cta-buttons .btn-amber,
        .cta-buttons .btn-outline { width: 100%; min-width: 0; }
        .footer-bottom p { font-size: 12px; }
    }

    /* Focus states */
    a:focus-visible, button:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 3px;
    }
    @media (max-width: 991.98px) {
        .navbar-nav .nav-link,
        .navbar-toggler,
        .btn-nav-cta {
            min-height: 44px;
        }
    }