/* roulang page: index */
:root {
            --color-primary: #C4552D;
            --color-primary-hover: #A84422;
            --color-primary-light: #F3DDD2;
            --color-secondary: #2F6B5F;
            --color-secondary-light: #DDEAE6;
            --color-navy: #263445;
            --color-bg: #F7F4EF;
            --color-surface: #FFFFFF;
            --color-heading: #2A2622;
            --color-text: #4A443E;
            --color-muted: #8B8178;
            --color-border: #E8E2DA;
            --radius-card: 12px;
            --radius-small: 8px;
            --radius-large: 16px;
            --shadow-card: 0 2px 12px rgba(42, 38, 34, 0.06);
            --shadow-hover: 0 12px 28px rgba(42, 38, 34, 0.1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--color-bg);
            color: var(--color-text);
            font-family: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .nav-link {
            position: relative;
            padding: 0.5rem 0.875rem;
            font-size: 0.9375rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.88);
            border-radius: 6px;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .nav-link:hover {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.14);
            box-shadow: inset 0 -2px 0 var(--color-primary);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: 10px;
            font-size: 0.9375rem;
            font-weight: 600;
            line-height: 1.25rem;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: scale(0.98);
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #ffffff;
            box-shadow: 0 2px 8px rgba(196, 85, 45, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            box-shadow: 0 4px 14px rgba(168, 68, 34, 0.3);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .btn-secondary:hover {
            background-color: #ecc9b9;
            color: var(--color-primary-hover);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #ffffff;
        }

        .btn-outline-light:hover {
            border-color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }

        .btn-navy {
            background-color: var(--color-navy);
            color: #ffffff;
        }

        .btn-navy:hover {
            background-color: #1d2836;
        }

        /* 标签徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            line-height: 1.4;
        }

        .badge-primary {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .badge-secondary {
            background-color: var(--color-secondary-light);
            color: var(--color-secondary);
        }

        .badge-gray {
            background-color: #F0EDE8;
            color: var(--color-muted);
        }

        /* 板块间距 */
        .section {
            padding: 4rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 6rem 0;
            }
        }

        .overline {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        /* 服务卡片 */
        .service-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        .service-card:hover {
            transform: translateY(2px);
            box-shadow: var(--shadow-hover);
            border-color: #d6cdc2;
        }

        .service-card .card-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: #d9d2c8;
            transition: color 0.25s ease;
        }

        .service-card:hover .card-number {
            color: var(--color-primary);
        }

        .service-link {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .service-link:hover {
            color: var(--color-primary-hover);
            gap: 0.5rem;
        }

        .service-link:hover .arrow-icon {
            transform: translateX(3px);
        }

        .arrow-icon {
            transition: transform 0.2s ease;
        }

        /* 统计数字 */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }

        /* 案例卡片 */
        .case-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-large);
            overflow: hidden;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .case-card .image-wrap {
            overflow: hidden;
        }

        .case-card .image-wrap img {
            transition: transform 0.4s ease;
        }

        .case-card:hover .image-wrap img {
            transform: scale(1.03);
        }

        /* 流程步进 */
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 3rem;
            height: 3rem;
            border-radius: 999px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 1.15rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .step-dash {
            border-top: 2px dashed #d9d2c8;
            flex: 1;
            margin: 1.5rem 1rem 0;
            min-width: 20px;
        }

        @media (max-width: 767px) {
            .step-dash {
                border-top: none;
                border-left: 2px dashed #d9d2c8;
                width: 0;
                min-height: 24px;
                margin: 0.5rem 0 0.5rem 1.5rem;
                flex: 0 0 auto;
            }
        }

        /* FAQ */
        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item.active {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 1px var(--color-primary);
        }

        .faq-item.active .faq-line {
            background-color: var(--color-primary);
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            user-select: none;
            transition: background-color 0.2s ease;
        }

        .faq-question:hover {
            background-color: #FAF8F5;
        }

        .faq-item.active .faq-question {
            font-weight: 600;
            color: var(--color-heading);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem 1.5rem;
            color: var(--color-text);
            font-size: 0.9375rem;
            line-height: 1.8;
        }

        /* 表单 */
        .form-input {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
            background-color: var(--color-surface);
            font-size: 0.9375rem;
            color: var(--color-heading);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(196, 85, 45, 0.12);
        }

        .form-input::placeholder {
            color: #b0a89f;
        }

        select.form-input {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238B8178' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.75rem center;
            padding-right: 2.25rem;
        }

        /* 页脚 */
        .footer-link {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            transition: color 0.2s ease;
            display: inline-block;
            padding: 0.25rem 0;
        }

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

        /* 汉堡菜单 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 0.5rem;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.open {
            display: block;
        }

        @media (max-width: 767px) {
            .desktop-nav {
                display: none !important;
            }

            .hamburger {
                display: flex;
            }

            .nav-right-desktop {
                display: none !important;
            }
        }

        @media (min-width: 768px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* 图片遮罩 */
        .img-overlay {
            position: relative;
        }

        .img-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(42, 38, 34, 0.55) 100%);
            border-radius: inherit;
            pointer-events: none;
        }

        /* 热榜列表 */
        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 0.875rem;
            padding: 0.875rem 0;
            border-bottom: 1px solid var(--color-border);
        }

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

        .hot-number {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.5;
            min-width: 2rem;
            text-align: center;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .page-btn {
            padding: 0.5rem 0.875rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
            background-color: var(--color-surface);
            color: var(--color-text);
            font-size: 0.875rem;
            transition: all 0.2s ease;
        }

        .page-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .page-btn.active {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #ffffff;
        }

        .page-btn.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* 入场动画（轻量） */
        .fade-up {
            animation: fadeUp 0.6s ease-out both;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #C4552D;
  --color-primary-hover: #A84422;
  --color-primary-light: #F3DDD2;
  --color-secondary: #2F6B5F;
  --color-secondary-light: #DDEAE6;
  --color-navy: #263445;
  --color-bg: #F7F4EF;
  --color-surface: #FFFFFF;
  --color-heading: #2A2622;
  --color-text: #4A443E;
  --color-muted: #8B8178;
  --color-border: #E8E2DA;
  --radius-card: 12px;
  --radius-small: 8px;
  --radius-large: 16px;
  --shadow-card: 0 2px 12px rgba(42, 38, 34, 0.06);
  --shadow-hover: 0 12px 28px rgba(42, 38, 34, 0.1);
}
html {
  scroll-behavior: smooth;
}
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
.container { width: 100%; max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 1.25rem; padding-right: 1.25rem; }
@media (min-width: 768px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-left: 2rem; padding-right: 2rem; } }

/* 导航 */
.nav-link {
  position: relative;
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88);
  border-radius: 6px;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-link:hover { color: #ffffff; background-color: rgba(255, 255, 255, 0.1); }
.nav-link.active { color: #ffffff; background-color: rgba(255, 255, 255, 0.14); box-shadow: inset 0 -2px 0 var(--color-primary); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.75rem 1.5rem; border-radius: 10px; font-size: 0.9375rem; font-weight: 600; line-height: 1.25rem; transition: all 0.2s ease; white-space: nowrap; }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.btn:active { transform: scale(0.98); }
.btn-primary { background-color: var(--color-primary); color: #ffffff; box-shadow: 0 2px 8px rgba(196, 85, 45, 0.25); }
.btn-primary:hover { background-color: var(--color-primary-hover); box-shadow: 0 4px 14px rgba(168, 68, 34, 0.3); transform: translateY(-1px); }
.btn-secondary { background-color: var(--color-primary-light); color: var(--color-primary); }
.btn-secondary:hover { background-color: #ecc9b9; color: var(--color-primary-hover); }
.btn-outline-light { border: 1px solid rgba(255, 255, 255, 0.35); color: #ffffff; }
.btn-outline-light:hover { border-color: #ffffff; background-color: rgba(255, 255, 255, 0.08); }
.badge { display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500; line-height: 1.4; }
.badge-primary { background-color: var(--color-primary-light); color: var(--color-primary); }
.badge-secondary { background-color: var(--color-secondary-light); color: var(--color-secondary); }
.badge-gray { background-color: #F0EDE8; color: var(--color-muted); }

/* 汉堡按钮 */
.hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; padding: 8px; border-radius: 8px; }
.hamburger span { display: block; height: 2px; width: 24px; background: #fff; border-radius: 2px; transition: all 0.3s ease; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 1023px) {
  .desktop-nav, .nav-right-desktop { display: none !important; }
  .hamburger { display: flex; }
}
.mobile-menu { display: none; }
.mobile-menu.open { display: block; }

/* 分类页特有 */
.breadcrumb-item { color: var(--color-muted); font-size: 0.875rem; }
.breadcrumb-item a:hover { color: var(--color-primary); }
.breadcrumb-sep { color: #c9c2b8; margin: 0 0.5rem; font-size: 0.75rem; }

.filter-tab {
  flex-shrink: 0;
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.filter-tab:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-tab.active { background-color: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: 0 2px 8px rgba(196, 85, 45, 0.25); }
.scroll-tabs { scrollbar-width: none; -ms-overflow-style: none; }
.scroll-tabs::-webkit-scrollbar { display: none; }

.video-entry {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 1rem;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.video-entry:hover { box-shadow: var(--shadow-hover); border-color: #d6cdc2; }
.video-entry:hover .entry-title { color: var(--color-primary); }
.video-entry:hover .entry-thumb img { transform: scale(1.04); }
.entry-title { font-weight: 600; color: var(--color-heading); transition: color 0.2s ease; line-height: 1.5; }
.entry-thumb { border-radius: 8px; overflow: hidden; }
.entry-thumb img { transition: transform 0.4s ease; width: 100%; height: 100%; object-fit: cover; }

.hot-item { display: flex; align-items: baseline; gap: 0.75rem; padding: 0.75rem 0; border-bottom: 1px dashed var(--color-border); }
.hot-item:last-child { border-bottom: none; }
.hot-item .hot-num { font-size: 1.125rem; font-weight: 800; color: var(--color-primary); font-style: italic; line-height: 1; }
.hot-item .hot-title { font-size: 0.9375rem; color: var(--color-heading); font-weight: 500; line-height: 1.5; transition: color 0.2s ease; }
.hot-item:hover .hot-title { color: var(--color-primary); }

.pagination-link { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding: 0 0.75rem; font-size: 0.875rem; font-weight: 500; border-radius: 8px; background-color: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-text); transition: all 0.2s ease; }
.pagination-link:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination-link.active { background-color: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination-link.disabled { opacity: 0.45; pointer-events: none; }

.sidebar-card { background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-large); padding: 1.5rem; }
.recommend-card { background-color: #FAF6F1; border: 1px solid var(--color-border); border-radius: 12px; overflow: hidden; transition: all 0.2s ease; }
.recommend-card:hover { box-shadow: var(--shadow-card); }
.notice-box { background-color: #F0EDE8; border-radius: 12px; padding: 1rem 1.25rem; }

.footer-link { color: rgba(255, 255, 255, 0.6); font-size: 0.875rem; padding: 0.25rem 0; display: inline-block; transition: color 0.2s ease; }
.footer-link:hover { color: #ffffff; }

/* 焦点可见性 */
a:focus-visible, button:focus-visible, .filter-tab:focus-visible, .pagination-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}