/* roulang page: index */
:root {
            --color-primary: #c9933d;
            --color-primary-hover: #b5822f;
            --color-primary-light: #e8d5b5;
            --color-primary-bg: #fdf8f0;
            --color-dark: #1c1c28;
            --color-dark-soft: #262638;
            --color-dark-border: #3a3a4e;
            --color-text: #2d2b28;
            --color-text-light: #6b675f;
            --color-text-muted: #9a958b;
            --color-bg: #faf7f2;
            --color-bg-alt: #f2ede5;
            --color-white: #ffffff;
            --color-border: #e8e2d8;
            --color-success: #4a8c5c;
            --color-warn: #c97b3d;
            --color-danger: #b84c4c;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 40, 0.06);
            --shadow-md: 0 8px 32px rgba(28, 28, 40, 0.1);
            --shadow-lg: 0 20px 60px rgba(28, 28, 40, 0.16);
            --shadow-primary: 0 8px 28px rgba(201, 147, 61, 0.35);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --container-pad: 24px;
            --header-height: 72px;
            --chip-nav-height: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            transition: all var(--transition-fast);
        }

        ul, ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.5rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        h5 {
            font-size: 1rem;
        }
        h6 {
            font-size: 0.9rem;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 16px rgba(28, 28, 40, 0.04);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            min-width: 0;
        }

        .brand-logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #c9933d, #a06f28);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
            box-shadow: 0 4px 12px rgba(201, 147, 61, 0.3);
        }

        .brand-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-dark);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            letter-spacing: -0.02em;
        }

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

        .header-nav-desktop a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .header-nav-desktop a:hover,
        .header-nav-desktop a.active {
            color: var(--color-primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.92rem;
            letter-spacing: 0.01em;
            transition: all var(--transition-base);
            white-space: nowrap;
            user-select: none;
            border: 2px solid transparent;
        }

        .btn:active {
            transform: scale(0.97);
        }

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

        .btn-primary:hover {
            background: var(--color-primary-hover);
            box-shadow: 0 12px 36px rgba(201, 147, 61, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

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

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.82rem;
        }

        /* Chip Nav */
        .chip-nav {
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            padding: 8px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--color-primary-light) transparent;
        }

        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }
        .chip-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-primary-light);
            border-radius: var(--radius-full);
        }

        .chip-nav-inner {
            display: flex;
            gap: 8px;
            align-items: center;
            min-width: max-content;
            padding: 0 4px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-light);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .chip:hover {
            background: var(--color-primary-bg);
            border-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .chip.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 4px 12px rgba(201, 147, 61, 0.25);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            background: var(--color-white);
            transition: all var(--transition-fast);
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .menu-toggle:hover {
            border-color: var(--color-primary);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: var(--color-dark);
            color: #fff;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 60px 0 100px;
            clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(165deg, rgba(28, 28, 40, 0.88) 0%, rgba(28, 28, 40, 0.68) 45%, rgba(28, 28, 40, 0.55) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }

        .hero-content {
            flex: 1;
            max-width: 620px;
        }

        .hero-profile {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 20px;
        }

        .hero-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #c9933d, #8f6525);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.4rem;
            border: 3px solid rgba(255, 255, 255, 0.25);
            flex-shrink: 0;
            box-shadow: 0 8px 24px rgba(201, 147, 61, 0.4);
        }

        .hero-profile-info {
            display: flex;
            flex-direction: column;
        }

        .hero-profile-name {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0;
        }

        .hero-profile-status {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-profile-status .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #5cc87a;
            display: inline-block;
        }

        .hero h1 {
            color: #fff;
            margin-bottom: 16px;
            font-size: clamp(1.8rem, 3.8vw, 2.7rem);
            letter-spacing: -0.02em;
        }

        .hero-sub {
            font-size: 1.02rem;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-badge {
            display: flex;
            flex-direction: column;
        }

        .hero-badge-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-badge-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .hero-panel {
            flex-shrink: 0;
            width: 340px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
        }

        .hero-panel-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-panel-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hero-panel-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }

        .hero-panel-item:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(201, 147, 61, 0.4);
        }

        .hero-panel-item .item-name {
            color: rgba(255, 255, 255, 0.8);
        }

        .hero-panel-item .item-value {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.82rem;
        }

        /* ========== Main Sections ========== */
        main {
            flex: 1;
        }

        .section {
            padding: 72px 0;
        }

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

        .section-dark {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.8);
        }

        .section-header {
            margin-bottom: 40px;
            max-width: 680px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border: 1px solid var(--color-primary-light);
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-title {
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.85;
        }

        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ========== Screenshot Stage ========== */
        .stage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .stage-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: pointer;
        }

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

        .stage-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        .stage-card-body {
            padding: 16px 18px 20px;
        }

        .stage-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-dark);
        }

        .stage-card-text {
            font-size: 0.82rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ========== Steps ========== */
        .steps-layout {
            display: flex;
            gap: 28px;
            align-items: flex-start;
            counter-reset: step;
        }

        .step-item {
            flex: 1;
            counter-increment: step;
            padding: 24px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-primary-light);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 14px;
            box-shadow: 0 6px 16px rgba(201, 147, 61, 0.3);
        }

        .step-num::before {
            content: counter(step);
        }

        .step-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-dark);
        }

        .step-text {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.75;
        }

        /* ========== Security Audit ========== */
        .security-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .security-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .security-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .security-item:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-sm);
        }

        .security-check {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: #e8f5ed;
            color: var(--color-success);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 700;
            margin-top: 2px;
        }

        .security-item-content h4 {
            font-size: 0.9rem;
            margin-bottom: 4px;
            color: var(--color-dark);
        }

        .security-item-content p {
            font-size: 0.82rem;
            color: var(--color-text-light);
            line-height: 1.65;
        }

        .security-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .security-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }

        /* ========== Review Wall ========== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .review-stars {
            color: #f0b84d;
            font-size: 0.9rem;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.88rem;
            color: var(--color-text);
            line-height: 1.8;
            flex: 1;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .review-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .review-author-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-dark);
        }

        .review-author-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        /* ========== Campaign ========== */
        .campaign-band {
            background: linear-gradient(135deg, #1c1c28 0%, #2a1f10 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }

        .campaign-band::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 147, 61, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .campaign-content {
            position: relative;
            z-index: 1;
            flex: 1;
            max-width: 560px;
        }

        .campaign-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(201, 147, 61, 0.2);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .campaign-title {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 10px;
        }

        .campaign-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .campaign-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .campaign-visual {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .campaign-visual img {
            width: 260px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }

        /* ========== News ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 28px;
            align-items: start;
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .news-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--color-primary-light);
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-item-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--color-dark);
            flex: 1;
            line-height: 1.55;
            transition: color var(--transition-fast);
        }

        .news-list-item:hover .news-item-title {
            color: var(--color-primary);
        }

        .news-item-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .news-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-side-card {
            display: flex;
            gap: 12px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 12px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .news-side-card:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .news-side-card img {
            width: 80px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-side-card-content {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .news-side-card-title {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-dark);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-side-card-meta {
            font-size: 0.72rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-dark);
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .indicator {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .indicator {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px 20px;
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: #fff;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 28, 40, 0.92) 0%, rgba(28, 28, 40, 0.75) 100%);
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
        }

        .cta-title {
            color: #fff;
            font-size: clamp(1.5rem, 3vw, 2rem);
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.85;
            margin-bottom: 28px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-brand-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .footer-brand-desc {
            font-size: 0.82rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 30px;
            }
            .hero-panel {
                width: 100%;
                max-width: 500px;
            }
            .stage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .campaign-band {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 28px;
            }
            .campaign-visual img {
                width: 100%;
                max-width: 320px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header-nav-desktop {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-main {
                height: auto;
                padding: 12px 0;
            }
            .brand-text {
                font-size: 1rem;
            }
            .brand-logo-mark {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .chip-nav {
                padding: 6px 0;
            }
            .chip {
                padding: 6px 13px;
                font-size: 0.78rem;
            }

            .hero {
                min-height: auto;
                padding: 40px 0 80px;
                clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-sub {
                font-size: 0.92rem;
                line-height: 1.8;
            }
            .hero-badges {
                gap: 14px;
            }
            .hero-badge-num {
                font-size: 1.2rem;
            }

            .section {
                padding: 48px 0;
            }
            .stage-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-layout {
                flex-direction: column;
                gap: 16px;
            }
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .security-item {
                padding: 12px 14px;
            }
            .campaign-band {
                padding: 24px 20px;
                border-radius: var(--radius-lg);
            }
            .campaign-title {
                font-size: 1.15rem;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.88rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.82rem;
            }
            .cta-section {
                padding: 56px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            :root {
                --container-pad: 16px;
                --header-height: 60px;
            }
            .brand-text {
                font-size: 0.88rem;
                letter-spacing: -0.03em;
            }
            .brand-logo-mark {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .hero {
                padding: 28px 0 60px;
                clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            }
            .hero-profile {
                gap: 10px;
                margin-bottom: 14px;
            }
            .hero-avatar {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .hero h1 {
                font-size: 1.35rem;
                margin-bottom: 10px;
            }
            .hero-sub {
                font-size: 0.85rem;
                margin-bottom: 20px;
                line-height: 1.75;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-badges {
                gap: 12px;
                flex-wrap: wrap;
            }
            .hero-panel {
                padding: 18px;
                border-radius: var(--radius-md);
            }
            .hero-panel-item {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .section-desc {
                font-size: 0.85rem;
            }
            .campaign-band {
                padding: 20px 16px;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .news-item-date {
                font-size: 0.72rem;
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .btn {
                padding: 9px 18px;
                font-size: 0.85rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.92rem;
            }
        }