/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1b3a4b;
            --color-primary-light: #2c5f7a;
            --color-primary-dark: #0f2533;
            --color-accent: #c49b5c;
            --color-accent-light: #d4b07a;
            --color-accent-pale: #f5ede0;
            --color-bg: #f8f6f3;
            --color-bg-warm: #f3efe8;
            --color-surface: #ffffff;
            --color-surface-alt: #faf9f7;
            --color-text: #1a1a1a;
            --color-text-secondary: #4a4a4a;
            --color-text-muted: #7a7a7a;
            --color-text-light: #9a9a9a;
            --color-text-on-dark: #e8e4de;
            --color-border: #e5e1da;
            --color-border-light: #f0ece6;
            --color-success: #4a8c6f;
            --color-warning: #c49b5c;
            --color-error: #b85555;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 50%;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.12);
            --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.10);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "STSong", "Songti SC", "SimSun", serif;
            --font-mono: "SF Mono", "Fira Code", "Consolas", "Monaco", monospace;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.45s ease;
            --section-gap: 80px;
            --section-gap-sm: 50px;
            --container-max: 1160px;
            --container-narrow: 860px;
            --nav-height: 68px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text);
        }

        h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.2rem, 2vw, 1.5rem);
        }
        h4 {
            font-size: 1.1rem;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 28px;
            padding-right: 28px;
        }

        .container--narrow {
            max-width: var(--container-narrow);
        }

        /* ===== 板块间距 ===== */
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section--sm {
            padding-top: var(--section-gap-sm);
            padding-bottom: var(--section-gap-sm);
        }
        .section--no-top {
            padding-top: 0;
        }
        .section--no-bottom {
            padding-bottom: 0;
        }
        .section--dark {
            background-color: var(--color-primary);
            color: var(--color-text-on-dark);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: #f0ece6;
        }
        .section--warm {
            background-color: var(--color-bg-warm);
        }
        .section--alt {
            background-color: var(--color-surface-alt);
        }

        /* 板块标题 */
        .section__label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .section__title {
            margin-bottom: 14px;
        }
        .section__subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 620px;
            line-height: 1.65;
        }
        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__header .section__subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition-base);
        }
        .header--scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header__logo {
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .header__logo:hover {
            color: var(--color-accent);
        }
        .header__logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .header__nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header__nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header__nav a:hover {
            color: var(--color-primary);
            background: var(--color-bg-warm);
        }
        .header__nav a.active {
            color: var(--color-primary);
            background: var(--color-accent-pale);
            font-weight: 600;
        }
        .header__nav-cta {
            margin-left: 8px;
            padding: 9px 22px !important;
            background: var(--color-primary) !important;
            color: #fff !important;
            border-radius: var(--radius-full) !important;
            font-weight: 600 !important;
            transition: all var(--transition-base) !important;
        }
        .header__nav-cta:hover {
            background: var(--color-primary-light) !important;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .header__menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-text);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .header__menu-btn:hover {
            background: var(--color-bg-warm);
        }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 99;
            flex-direction: column;
            padding: 24px 28px;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-nav.is-open {
            display: flex;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: var(--color-accent-pale);
            color: var(--color-primary);
        }
        .mobile-nav a.active {
            font-weight: 700;
        }
        .mobile-nav__cta {
            margin-top: 12px;
            text-align: center;
            background: var(--color-primary) !important;
            color: #fff !important;
            font-weight: 600 !important;
            border-radius: var(--radius-full) !important;
            padding: 14px 24px !important;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--color-primary-dark);
            overflow: hidden;
            padding-top: 60px;
            padding-bottom: 100px;
        }
        .hero__bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            filter: brightness(0.7) saturate(0.6);
        }
        .hero__overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(180deg,
                    rgba(15, 37, 51, 0.55) 0%,
                    rgba(27, 58, 75, 0.7) 40%,
                    rgba(27, 58, 75, 0.85) 100%);
        }
        .hero__wave {
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            z-index: 3;
            height: 80px;
        }
        .hero__wave svg {
            width: 100%;
            height: 100%;
            display: block;
        }
        .hero__wave path {
            fill: var(--color-bg);
        }
        .hero__content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            color: #f0ece6;
        }
        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 22px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #e8dcc8;
        }
        .hero__badge-dot {
            width: 7px;
            height: 7px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(196, 155, 92, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(196, 155, 92, 0);
            }
        }
        .hero__title {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 18px;
            color: #fff;
        }
        .hero__title span {
            color: var(--color-accent-light);
        }
        .hero__desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: #d5cfc4;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .hero__stats {
            display: flex;
            gap: 36px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .hero__stat {
            text-align: left;
        }
        .hero__stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .hero__stat-label {
            font-size: 0.82rem;
            color: #b8b0a5;
            margin-top: 4px;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .btn--primary {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: var(--shadow-sm);
        }
        .btn--primary:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: #1a1a1a;
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-xs);
        }
        .btn--outline {
            background: transparent;
            color: #f0ece6;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
        }
        .btn--outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn--dark {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn--dark:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn--lg {
            padding: 16px 34px;
            font-size: 1rem;
        }
        .btn--sm {
            padding: 9px 18px;
            font-size: 0.85rem;
        }
        .btn--icon {
            width: 42px;
            height: 42px;
            padding: 0;
            border-radius: var(--radius-full);
        }

        /* ===== 卡片系统 ===== */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card__image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-warm);
        }
        .card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card:hover .card__image img {
            transform: scale(1.04);
        }
        .card__tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.76rem;
            font-weight: 600;
            background: var(--color-accent-pale);
            color: var(--color-accent);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .card__title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
            transition: color var(--transition-fast);
        }
        .card:hover .card__title {
            color: var(--color-accent);
        }
        .card__desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-light);
        }
        .card__meta-dot {
            width: 4px;
            height: 4px;
            border-radius: var(--radius-full);
            background: var(--color-border);
            flex-shrink: 0;
        }
        .card--horizontal {
            display: flex;
            gap: 22px;
            align-items: flex-start;
        }
        .card--horizontal .card__image {
            width: 180px;
            flex-shrink: 0;
            margin-bottom: 0;
            aspect-ratio: 4 / 3;
        }
        .card--horizontal .card__body {
            flex: 1;
        }

        /* ===== 网格系统 ===== */
        .grid {
            display: grid;
            gap: 24px;
        }
        .grid--2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .grid--3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .grid--4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .grid--auto {
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        }

        /* ===== 统计数字块 ===== */
        .stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: center;
            text-align: center;
        }
        .stat-block {
            flex: 1;
            min-width: 160px;
            padding: 20px;
        }
        .stat-block__number {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--color-primary);
            line-height: 1;
        }
        .stat-block__number span {
            color: var(--color-accent);
        }
        .stat-block__label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        /* ===== 特色功能卡片 ===== */
        .feature-card {
            text-align: center;
            padding: 36px 24px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-card__icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-full);
            background: var(--color-accent-pale);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-card__icon {
            background: var(--color-accent);
            color: #fff;
        }
        .feature-card__title {
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card__desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        /* ===== 流程/步骤 ===== */
        .steps {
            display: flex;
            gap: 20px;
            counter-reset: step;
            flex-wrap: wrap;
        }
        .step {
            flex: 1;
            min-width: 200px;
            text-align: center;
            position: relative;
            padding: 24px 16px;
        }
        .step::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 16px;
        }
        .step__title {
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step__desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }
        .step__connector {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-item__question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }
        .faq-item:hover .faq-item__question {
            color: var(--color-accent);
        }
        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--color-bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-base);
            color: var(--color-text-muted);
        }
        .faq-item.is-open .faq-item__icon {
            transform: rotate(45deg);
            background: var(--color-accent-pale);
            color: var(--color-accent);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
            padding-right: 44px;
        }
        .faq-item.is-open .faq-item__answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ===== CTA 订阅区 ===== */
        .cta-block {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(196, 155, 92, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(44, 95, 122, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-block__content {
            position: relative;
            z-index: 1;
        }
        .cta-block__title {
            color: #fff;
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        .cta-block__desc {
            color: #c5bfb4;
            margin-bottom: 28px;
            font-size: 0.95rem;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form__input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.12);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-base);
        }
        .cta-form__input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .cta-form__input:focus {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--color-accent);
        }
        .cta-form .btn--primary {
            flex-shrink: 0;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--color-primary-dark);
            color: #b8b0a5;
            padding-top: 60px;
            padding-bottom: 32px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer__brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: #e8e4de;
            margin-bottom: 10px;
        }
        .footer__brand-desc {
            font-size: 0.88rem;
            line-height: 1.6;
            color: #9a948b;
            max-width: 300px;
        }
        .footer__col-title {
            font-weight: 600;
            color: #d5cfc4;
            margin-bottom: 14px;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer__links a {
            font-size: 0.88rem;
            color: #9a948b;
            transition: color var(--transition-fast);
        }
        .footer__links a:hover {
            color: var(--color-accent-light);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.82rem;
            color: #7a746b;
        }

        /* ===== 分类入口卡片（大卡） ===== */
        .category-entry {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .category-entry__card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .category-entry__card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .category-entry__image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-bg-warm);
        }
        .category-entry__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
            border-radius: 0;
        }
        .category-entry__card:hover .category-entry__image img {
            transform: scale(1.05);
        }
        .category-entry__body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-entry__tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.76rem;
            font-weight: 600;
            background: var(--color-accent-pale);
            color: var(--color-accent);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            align-self: flex-start;
        }
        .category-entry__title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .category-entry__desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            flex: 1;
        }
        .category-entry__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            margin-top: 14px;
            transition: gap var(--transition-fast);
        }
        .category-entry__link:hover {
            gap: 10px;
            color: var(--color-primary);
        }

        /* ===== 图文区块 ===== */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .media-block__image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            background: var(--color-bg-warm);
        }
        .media-block__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .media-block__text h2 {
            margin-bottom: 16px;
        }
        .media-block__text p {
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .media-block__features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 18px;
        }
        .media-block__feature {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
        }
        .media-block__feature-icon {
            width: 22px;
            height: 22px;
            border-radius: var(--radius-full);
            background: var(--color-accent-pale);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        /* ===== 列表项样式 ===== */
        .post-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .post-list-item:hover {
            padding-left: 8px;
        }
        .post-list-item__thumb {
            width: 80px;
            height: 56px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-warm);
        }
        .post-list-item__thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .post-list-item__info {
            flex: 1;
            min-width: 0;
        }
        .post-list-item__title {
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.35;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }
        .post-list-item:hover .post-list-item__title {
            color: var(--color-accent);
        }
        .post-list-item__meta {
            font-size: 0.78rem;
            color: var(--color-text-light);
        }

        /* ===== 分隔装饰 ===== */
        .divider-wave {
            position: relative;
            height: 50px;
            overflow: hidden;
        }
        .divider-wave svg {
            position: absolute;
            bottom: 0;
            width: 100%;
            height: 100%;
        }
        .divider-wave--light path {
            fill: var(--color-bg);
        }
        .divider-wave--warm path {
            fill: var(--color-bg-warm);
        }

        /* ===== 标签/徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.76rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .badge--accent {
            background: var(--color-accent-pale);
            color: var(--color-accent);
        }
        .badge--dark {
            background: rgba(27, 58, 75, 0.08);
            color: var(--color-primary);
        }
        .badge--success {
            background: rgba(74, 140, 111, 0.1);
            color: var(--color-success);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 60px;
                --section-gap-sm: 40px;
            }
            .grid--3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid--4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .media-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .media-block__image {
                order: -1;
                max-height: 360px;
            }
            .category-entry {
                grid-template-columns: 1fr;
                max-width: 560px;
                margin: 0 auto;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .hero {
                min-height: 480px;
                padding-bottom: 80px;
            }
            .hero__stats {
                gap: 24px;
            }
            .hero__stat-num {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --section-gap-sm: 32px;
                --nav-height: 60px;
            }
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .header__nav {
                display: none;
            }
            .header__menu-btn {
                display: flex;
            }
            .grid--2 {
                grid-template-columns: 1fr;
            }
            .grid--3 {
                grid-template-columns: 1fr;
            }
            .grid--4 {
                grid-template-columns: 1fr 1fr;
            }
            .grid--auto {
                grid-template-columns: 1fr;
            }
            .hero {
                min-height: 420px;
                padding-top: 40px;
                padding-bottom: 70px;
            }
            .hero__title {
                font-size: 1.8rem;
            }
            .hero__desc {
                font-size: 0.95rem;
            }
            .hero__actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero__stats {
                gap: 18px;
                margin-top: 28px;
            }
            .hero__stat-num {
                font-size: 1.4rem;
            }
            .card--horizontal {
                flex-direction: column;
            }
            .card--horizontal .card__image {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .stats-row {
                gap: 16px;
            }
            .stat-block {
                min-width: 120px;
                padding: 12px;
            }
            .stat-block__number {
                font-size: 2rem;
            }
            .steps {
                flex-direction: column;
                gap: 12px;
            }
            .step {
                min-width: auto;
                text-align: left;
                display: flex;
                align-items: center;
                gap: 16px;
                padding: 12px 0;
            }
            .step::before {
                margin: 0;
                flex-shrink: 0;
            }
            .cta-block {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block__title {
                font-size: 1.3rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form__input {
                min-width: auto;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section__header {
                margin-bottom: 32px;
            }
            .faq-item__question {
                font-size: 0.95rem;
            }
            .category-entry__body {
                padding: 18px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 36px;
                --section-gap-sm: 24px;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .grid--4 {
                grid-template-columns: 1fr;
            }
            .hero {
                min-height: 360px;
                padding-top: 30px;
                padding-bottom: 60px;
            }
            .hero__title {
                font-size: 1.5rem;
            }
            .hero__badge {
                font-size: 0.74rem;
                padding: 5px 12px;
            }
            .hero__wave {
                height: 40px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.88rem;
            }
            .btn--lg {
                padding: 13px 26px;
                font-size: 0.93rem;
            }
            .card {
                padding: 18px;
            }
            .stats-row {
                flex-direction: column;
                align-items: center;
                gap: 8px;
            }
            .stat-block {
                min-width: auto;
                width: 100%;
            }
            .feature-card {
                padding: 24px 16px;
            }
            .faq-item {
                padding: 14px 0;
            }
            .faq-item__answer {
                padding-right: 20px;
            }
            .post-list-item__thumb {
                width: 56px;
                height: 40px;
            }
            .post-list-item__title {
                font-size: 0.88rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #4a6d8c;
            --primary-dark: #3b5a75;
            --primary-light: #6b8fad;
            --accent: #c8963e;
            --accent-light: #f0e0c4;
            --accent-deep: #a8782a;
            --bg: #faf8f5;
            --bg-alt: #f2eeea;
            --bg-warm: #fdfaf6;
            --card-bg: #ffffff;
            --text: #3a3530;
            --text-heading: #2a2520;
            --text-light: #6b6560;
            --text-muted: #999490;
            --border: #e8e3db;
            --border-light: #f0ece6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-reading: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
            --transition: 0.25s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1140px;
            --max-width-article: 780px;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container--article {
            max-width: var(--max-width-article);
        }

        /* ========== HEADER ========== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition);
        }
        .header__logo:hover {
            opacity: 0.8;
            color: var(--text-heading);
        }

        .header__logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .header__nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .header__nav a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .header__nav a:hover {
            color: var(--text-heading);
            background: var(--bg-alt);
        }
        .header__nav a.active {
            color: var(--primary);
            background: rgba(74, 109, 140, 0.08);
            font-weight: 600;
        }

        .header__nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 22px !important;
            border-radius: 24px !important;
            box-shadow: 0 2px 10px rgba(200, 150, 62, 0.3);
            transition: all var(--transition) !important;
        }
        .header__nav-cta:hover {
            background: var(--accent-deep) !important;
            color: #fff !important;
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.4) !important;
            transform: translateY(-1px);
        }

        .header__menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text);
            flex-shrink: 0;
            transition: background var(--transition);
        }
        .header__menu-btn:hover {
            background: var(--bg-alt);
        }

        /* ========== MAIN ========== */
        .main {
            flex: 1;
            padding-bottom: 60px;
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            background-color: var(--primary-dark);
            padding: 70px 0 50px;
            min-height: 220px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(42, 37, 32, 0.78) 0%, rgba(59, 90, 117, 0.65) 60%, rgba(74, 109, 140, 0.55) 100%);
            z-index: 1;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 50px;
            background: var(--bg);
            border-radius: 50% 50% 0 0 / 30px 30px 0 0;
            z-index: 2;
        }
        .article-banner__content {
            position: relative;
            z-index: 3;
            color: #fff;
            max-width: var(--max-width-article);
            width: 100%;
            margin: 0 auto;
            padding: 0 20px;
        }
        .article-banner__breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .article-banner__breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition);
        }
        .article-banner__breadcrumb a:hover {
            color: #fff;
        }
        .article-banner__breadcrumb-sep {
            opacity: 0.5;
        }
        .article-banner__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 14px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .article-banner__tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .article-banner__title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.01em;
            color: #fff;
        }

        /* Article Body Section */
        .article-section {
            padding: 40px 0 50px;
        }
        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
            position: relative;
            z-index: 1;
        }
        .article-card__featured-img {
            margin: -40px -44px 36px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
        }
        .article-card__featured-img img {
            width: 100%;
            border-radius: 0;
            object-fit: cover;
            max-height: 420px;
        }
        .article-card__body {
            font-family: var(--font-reading);
            font-size: 1.06rem;
            line-height: 1.9;
            color: var(--text);
            letter-spacing: 0.01em;
        }
        .article-card__body p {
            margin-bottom: 1.4em;
        }
        .article-card__body h2,
        .article-card__body h3 {
            font-family: var(--font-sans);
            color: var(--text-heading);
            margin: 2em 0 0.8em;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .article-card__body h2 {
            font-size: 1.4rem;
            border-left: 4px solid var(--accent);
            padding-left: 16px;
            line-height: 1.4;
        }
        .article-card__body h3 {
            font-size: 1.15rem;
            padding-left: 0;
        }
        .article-card__body ul,
        .article-card__body ol {
            margin: 1em 0 1.4em;
            padding-left: 1.6em;
        }
        .article-card__body li {
            margin-bottom: 0.5em;
        }
        .article-card__body blockquote {
            margin: 1.6em 0;
            padding: 20px 28px;
            background: var(--bg-warm);
            border-radius: var(--radius);
            border-left: 3px solid var(--accent-light);
            color: var(--text-light);
            font-style: italic;
            letter-spacing: 0.02em;
        }
        .article-card__body img {
            margin: 1.6em auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
        }
        .article-card__divider {
            border: none;
            border-top: 1px solid var(--border);
            margin: 40px 0;
        }

        /* Article Footer Meta */
        .article-footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            margin-top: 30px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-footer-meta__tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-footer-meta__tag {
            padding: 5px 12px;
            border-radius: 16px;
            background: var(--bg-alt);
            color: var(--text-light);
            font-size: 0.83rem;
            transition: all var(--transition);
        }
        .article-footer-meta__tag:hover {
            background: var(--accent-light);
            color: var(--accent-deep);
        }

        /* Not Found */
        .not-found-section {
            padding: 80px 0 60px;
            text-align: center;
        }
        .not-found-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 60px 30px;
            border: 1px solid var(--border-light);
            max-width: 560px;
            margin: 0 auto;
        }
        .not-found-card__icon {
            font-size: 3.5rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }
        .not-found-card__title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }
        .not-found-card__desc {
            color: var(--text-light);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        /* Related Section */
        .related-section {
            padding: 30px 0 20px;
        }
        .related-section__title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 22px;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .related-section__title::before {
            content: '';
            width: 4px;
            height: 22px;
            border-radius: 2px;
            background: var(--accent);
            flex-shrink: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 18px;
        }
        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .related-card__img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card__body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card__title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.45;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .related-card:hover .related-card__title {
            color: var(--primary);
        }
        .related-card__date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: auto;
        }

        /* Back Link */
        .back-link-wrap {
            text-align: center;
            padding: 10px 0 20px;
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 24px;
            background: var(--bg-alt);
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .back-link:hover {
            background: var(--accent-light);
            color: var(--accent-deep);
        }
        .back-link svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #2a2520;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 28px;
            margin-top: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer__brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .footer__brand-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
        }
        .footer__col-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer__links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer__links a:hover {
            color: var(--accent);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.83rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.03em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-card {
                padding: 28px 24px;
            }
            .article-card__featured-img {
                margin: -28px -24px 28px;
                border-radius: var(--radius) var(--radius) 0 0;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header__nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px 20px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                z-index: 99;
            }
            .header__nav--open {
                display: flex;
            }
            .header__nav a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .header__nav-cta {
                margin-top: 6px;
            }
            .header__menu-btn {
                display: flex;
            }
            .article-banner {
                padding: 44px 0 36px;
                min-height: 160px;
            }
            .article-banner::after {
                height: 28px;
                border-radius: 40% 40% 0 0 / 20px 20px 0 0;
            }
            .article-card {
                padding: 20px 16px;
                border-radius: var(--radius);
            }
            .article-card__featured-img {
                margin: -20px -16px 22px;
                border-radius: var(--radius) var(--radius) 0 0;
            }
            .article-card__body {
                font-size: 0.98rem;
                line-height: 1.8;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .header__logo {
                font-size: 1rem;
                gap: 6px;
            }
            .header__logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
                border-radius: 6px;
            }
            .article-banner {
                padding: 32px 0 28px;
                min-height: 130px;
            }
            .article-banner__title {
                font-size: 1.25rem;
            }
            .article-banner__meta {
                gap: 8px;
                font-size: 0.8rem;
            }
            .article-card {
                padding: 16px 12px;
                border-radius: var(--radius-sm);
            }
            .article-card__featured-img {
                margin: -16px -12px 16px;
                border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            }
            .article-card__body {
                font-size: 0.92rem;
                line-height: 1.75;
            }
            .article-card__body h2 {
                font-size: 1.15rem;
                padding-left: 12px;
                border-left-width: 3px;
            }
            .article-card__body blockquote {
                padding: 14px 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .related-card__body {
                padding: 12px 14px 14px;
            }
            .footer {
                padding: 32px 0 20px;
            }
            .footer__brand-desc {
                max-width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #3D5A73;
            --color-primary-deep: #2C3E50;
            --color-primary-light: #5A7D9A;
            --color-accent: #C4956A;
            --color-accent-soft: #D9B68C;
            --color-bg: #FAF8F5;
            --color-bg-warm: #F5F0E8;
            --color-bg-soft: #F0EDE6;
            --color-surface: #FFFFFF;
            --color-text: #2B2B2B;
            --color-text-soft: #5A5A5A;
            --color-text-muted: #8B8478;
            --color-border: #E5DFD5;
            --color-border-soft: #F0EBE2;
            --color-shadow-sm: rgba(44, 62, 80, 0.06);
            --color-shadow-md: rgba(44, 62, 80, 0.10);
            --color-shadow-lg: rgba(44, 62, 80, 0.14);
            --color-wave: #EDE8DD;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px var(--color-shadow-sm);
            --shadow-md: 0 4px 16px var(--color-shadow-md);
            --shadow-lg: 0 8px 32px var(--color-shadow-lg);
            --shadow-card: 0 2px 12px var(--color-shadow-sm), 0 1px 3px var(--color-shadow-sm);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'STHeiti', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'STHeiti', -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-soft);
            box-shadow: 0 1px 8px rgba(44, 62, 80, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary-deep);
            letter-spacing: 0.03em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }

        .header__logo:hover {
            opacity: 0.82;
        }

        .header__logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(61, 90, 115, 0.25);
        }

        .header__nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header__nav a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.02em;
            position: relative;
        }

        .header__nav a:hover {
            color: var(--color-primary);
            background: rgba(61, 90, 115, 0.06);
        }

        .header__nav a.active {
            color: var(--color-primary-deep);
            font-weight: 600;
            background: rgba(61, 90, 115, 0.09);
        }

        .header__nav-cta {
            background: linear-gradient(135deg, var(--color-accent) 0%, #B88350 100%) !important;
            color: #fff !important;
            font-weight: 600 !important;
            border-radius: 24px !important;
            padding: 10px 22px !important;
            box-shadow: 0 3px 12px rgba(196, 149, 106, 0.3);
            transition: all var(--transition-smooth) !important;
            letter-spacing: 0.03em !important;
        }

        .header__nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(196, 149, 106, 0.4);
            background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-accent) 100%) !important;
            color: #fff !important;
        }

        .header__menu-btn {
            display: none;
            padding: 8px;
            color: var(--color-primary-deep);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .header__menu-btn:hover {
            background: rgba(61, 90, 115, 0.06);
        }

        /* 移动端导航 */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(44, 62, 80, 0.5);
            z-index: 199;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 300px;
            max-width: 82vw;
            height: 100%;
            background: #fff;
            z-index: 200;
            transform: translateX(100%);
            transition: transform var(--transition-slow);
            padding: 24px 20px;
            box-shadow: -4px 0 24px rgba(44, 62, 80, 0.15);
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }

        .mobile-nav-panel.open {
            transform: translateX(0);
        }

        .mobile-nav-panel a {
            display: block;
            padding: 13px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: rgba(61, 90, 115, 0.08);
            color: var(--color-primary-deep);
            font-weight: 600;
        }

        .mobile-nav-panel .mobile-cta {
            background: linear-gradient(135deg, var(--color-accent) 0%, #B88350 100%);
            color: #fff !important;
            text-align: center;
            font-weight: 600;
            margin-top: 8px;
            border-radius: 24px;
        }

        .mobile-nav-close {
            align-self: flex-end;
            padding: 10px;
            color: var(--color-text-soft);
            font-size: 1.4rem;
            line-height: 1;
            border-radius: 50%;
            transition: background var(--transition-fast);
        }

        .mobile-nav-close:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 16px 0;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb span {
            margin: 0 6px;
            color: var(--color-border);
        }

        .breadcrumb .current {
            color: var(--color-primary-deep);
            font-weight: 500;
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            padding: 64px 0 72px;
            background: linear-gradient(170deg, var(--color-bg-warm) 0%, var(--color-bg) 40%, #fff 100%);
            overflow: hidden;
        }

        .category-hero__wave {
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 70px;
            overflow: hidden;
            line-height: 0;
            pointer-events: none;
            z-index: 2;
        }

        .category-hero__wave svg {
            width: 100%;
            height: 70px;
            display: block;
            fill: var(--color-bg);
        }

        .category-hero__bg-pattern {
            position: absolute;
            top: -60px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(196, 149, 106, 0.08) 0%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }

        .category-hero__bg-pattern-left {
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(61, 90, 115, 0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }

        .category-hero__content {
            position: relative;
            z-index: 3;
            max-width: 700px;
        }

        .category-hero__label {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(61, 90, 115, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }

        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary-deep);
            letter-spacing: 0.03em;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .category-hero__desc {
            font-size: 1.1rem;
            color: var(--color-text-soft);
            line-height: 1.8;
            max-width: 560px;
        }

        .category-hero__stats {
            display: flex;
            gap: 36px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .category-hero__stat {
            display: flex;
            align-items: baseline;
            gap: 6px;
        }

        .category-hero__stat-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
        }

        .category-hero__stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        /* ===== 内容列表区 ===== */
        .section {
            padding: 64px 0;
        }

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

        .section__header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section__title {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-primary-deep);
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .section__subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
            border: 1px solid var(--color-border-soft);
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .article-card__image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-warm);
        }

        .article-card__image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .article-card:hover .article-card__image-wrap img {
            transform: scale(1.04);
        }

        .article-card__tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .article-card__body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-card__title {
            font-family: var(--font-heading);
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.45;
            letter-spacing: 0.02em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card__title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

        .article-card__title a:hover {
            color: var(--color-accent);
        }

        .article-card__excerpt {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .article-card__meta {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 4px;
            border-top: 1px solid var(--color-border-soft);
        }

        .article-card__read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .article-card__read-more:hover {
            gap: 8px;
        }

        /* ===== 精选教程区 ===== */
        .featured-guides {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-soft);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .featured-card::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(196, 149, 106, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .featured-card__icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-bg-warm) 0%, var(--color-bg-soft) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            z-index: 1;
        }

        .featured-card__content {
            z-index: 1;
            flex: 1;
        }

        .featured-card__label {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .featured-card__title {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary-deep);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .featured-card__desc {
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.65;
        }

        .featured-card__link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 12px;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .featured-card__link:hover {
            gap: 9px;
            color: var(--color-primary-deep);
        }

        /* ===== 步骤指南区 ===== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 20px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-soft);
            position: relative;
            transition: all var(--transition-smooth);
            counter-increment: step;
        }

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

        .step-item__number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 14px;
            box-shadow: 0 3px 10px rgba(61, 90, 115, 0.25);
        }

        .step-item__title {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .step-item__desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        .step-connector {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-border);
            font-size: 1.2rem;
        }

        /* ===== FAQ区 ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-soft);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .faq-item__question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-family: var(--font-body);
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            outline: none;
        }

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

        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: all var(--transition-smooth);
        }

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

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-smooth);
            padding: 0 22px;
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        .faq-item.open .faq-item__answer {
            max-height: 200px;
            padding: 0 22px 18px;
        }

        /* ===== CTA区 ===== */
        .cta-section {
            position: relative;
            padding: 72px 0;
            background: linear-gradient(160deg, var(--color-primary-deep) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
            overflow: hidden;
            text-align: center;
        }

        .cta-section__wave-top {
            position: absolute;
            top: -1px;
            left: 0;
            width: 100%;
            height: 60px;
            overflow: hidden;
            line-height: 0;
            pointer-events: none;
            z-index: 2;
        }

        .cta-section__wave-top svg {
            width: 100%;
            height: 60px;
            display: block;
            fill: var(--color-bg-soft);
        }

        .cta-section__bg-dot {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-section__bg-dot--1 {
            width: 200px;
            height: 200px;
            top: -40px;
            left: -60px;
        }

        .cta-section__bg-dot--2 {
            width: 160px;
            height: 160px;
            bottom: -30px;
            right: -40px;
        }

        .cta-section__content {
            position: relative;
            z-index: 3;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-section__title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .cta-section__desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .cta-section__btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: #fff;
            color: var(--color-primary-deep);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
        }

        .cta-section__btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.28);
            background: #fefefe;
        }

        /* ===== FOOTER ===== */
        .footer {
            background: var(--color-primary-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 52px 0 28px;
            letter-spacing: 0.02em;
        }

        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer__brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .footer__brand-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer__col-title {
            font-weight: 600;
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer__links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer__links a:hover {
            color: var(--color-accent-soft);
        }

        .footer__bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.03em;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .featured-guides {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-hero h1 {
                font-size: 2.1rem;
            }
            .section {
                padding: 48px 0;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .header__nav {
                display: none;
            }
            .header__menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .mobile-nav-overlay,
            .mobile-nav-panel {
                display: block;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-list {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .featured-guides {
                grid-template-columns: 1fr;
            }
            .featured-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 24px 20px;
            }
            .category-hero {
                padding: 44px 0 52px;
            }
            .category-hero h1 {
                font-size: 1.75rem;
            }
            .category-hero__desc {
                font-size: 0.95rem;
            }
            .category-hero__stats {
                gap: 20px;
            }
            .section__title {
                font-size: 1.5rem;
            }
            .cta-section__title {
                font-size: 1.5rem;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer__brand-desc {
                max-width: 100%;
            }
            .footer__links {
                align-items: center;
            }
            .article-card__body {
                padding: 16px 14px 18px;
            }
            .article-card__title {
                font-size: 0.98rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header__inner {
                padding: 0 16px;
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .category-hero h1 {
                font-size: 1.45rem;
            }
            .category-hero__desc {
                font-size: 0.88rem;
            }
            .category-hero__stats {
                flex-direction: column;
                gap: 10px;
            }
            .steps-list {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .step-item {
                padding: 20px 16px 18px;
            }
            .section {
                padding: 36px 0;
            }
            .section__title {
                font-size: 1.3rem;
            }
            .faq-item__question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-item__answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-item__answer {
                padding: 0 16px 14px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section__title {
                font-size: 1.3rem;
            }
            .cta-section__desc {
                font-size: 0.9rem;
            }
            .cta-section__btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .mobile-nav-panel {
                width: 280px;
                max-width: 85vw;
            }
        }