/* roulang page: index */
:root {
  --brand: #2E6B5E;
  --brand-dark: #1F4A41;
  --brand-light: #E6F0ED;
  --accent: #D97B29;
  --accent-dark: #B56218;
  --bg: #F7F5F2;
  --surface: #FFFFFF;
  --ink: #1F2A28;
  --muted: #6B7A76;
  --line: #E2E8E5;
  --dark-section: #1F2A28;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(31,42,40,.08);
  --shadow-md: 0 6px 20px rgba(31,42,40,.08);
  --shadow-lg: 0 12px 40px rgba(31,42,40,.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
ul, ol { list-style: none; }

.container-x {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad { padding: 80px 0; }

.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

.hero-section {
  background:
    linear-gradient(rgba(46,107,94,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,107,94,.05) 1px, transparent 1px),
    linear-gradient(135deg, #E6F0ED 0%, #F7F5F2 100%);
  background-size: 80px 80px, 80px 80px, 100% 100%;
}

.card-hover {
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(217,123,41,.4);
}

.img-zoom { overflow: hidden; }
.img-zoom img { transition: transform .4s ease; }
.img-zoom:hover img { transform: scale(1.03); }

.dark-data-section {
  background: var(--dark-section);
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0 1px, transparent 1px 12px);
}

.stepper-item { position: relative; }
.stepper-item::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -8px;
  border-left: 2px dashed #C8D4CF;
}
.stepper-item:last-child::before { display: none; }

details summary::-webkit-details-marker { display: none; }
details[open] .faq-icon { transform: rotate(45deg); }
.faq-icon { transition: transform .3s ease; }

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand);
  color: #fff;
  padding: 11px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: background .25s ease, transform .15s ease, box-shadow .25s ease;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--brand-dark); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: scale(.98); }
.btn-primary:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(46,107,94,.3); }

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 11px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: background .25s ease, transform .15s ease, box-shadow .25s ease;
  box-shadow: var(--shadow-sm);
}
.btn-accent:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }
.btn-accent:active { transform: scale(.98); }
.btn-accent:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(217,123,41,.3); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--ink);
  padding: 11px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--line);
  transition: border-color .25s ease, color .25s ease, transform .15s ease;
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn-ghost:active { transform: scale(.98); }
.btn-ghost:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(46,107,94,.2); }

.form-input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #FAFBFA;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.form-input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(46,107,94,.15);
  background: #fff;
}
.form-input::placeholder { color: #9AA8A4; }

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(46,107,94,.3);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .section-pad { padding: 44px 0; }
  .container-x { padding: 0 16px; }
}

/* roulang page: index */
:root {
            --color-primary: #0F766E;
            --color-primary-dark: #0B5E57;
            --color-secondary: #EA580C;
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1F2937;
            --color-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-dark-bg: #111827;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 20px rgba(15, 118, 110, .06);
            --shadow-hover: 0 12px 32px rgba(15, 118, 110, .14);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-ink);
            line-height: 1.65;
            scroll-behavior: smooth;
        }
        img,
        iframe {
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        a:hover {
            color: var(--color-primary);
        }
        input,
        button,
        select,
        textarea {
            font-family: var(--font-sans);
        }
        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-page {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 768px) {
            .container-page {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        /* 网格纹理 */
        .bg-grid {
            background-image:
                linear-gradient(rgba(15, 118, 110, .06) 1px, transparent 1px),
                linear-gradient(90deg, rgba(15, 118, 110, .06) 1px, transparent 1px);
            background-size: 28px 28px;
        }
        .bg-dots {
            background-image: radial-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px);
            background-size: 18px 18px;
        }

        /* 隐藏滚动条 */
        .no-scrollbar {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }

        /* 导航 */
        .nav-search-input {
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            padding: 8px 16px 8px 38px;
            width: 100%;
            font-size: .875rem;
            transition: border-color .2s, box-shadow .2s;
            background-color: #f9fafb;
        }
        .nav-search-input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, .12);
            background-color: #fff;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            background-color: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            font-size: .9375rem;
            transition: background-color .2s, box-shadow .2s, transform .15s;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .2);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            box-shadow: 0 8px 20px rgba(15, 118, 110, .3);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            border: 1.5px solid rgba(255, 255, 255, .8);
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            font-size: .9375rem;
            background-color: transparent;
            transition: background-color .2s, border-color .2s, transform .15s;
        }
        .btn-ghost:hover {
            background-color: rgba(255, 255, 255, .14);
            border-color: #fff;
            color: #fff;
        }
        .btn-ghost:active {
            transform: scale(.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            background-color: var(--color-secondary);
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            font-size: .9375rem;
            transition: background-color .2s, box-shadow .2s, transform .15s;
            box-shadow: 0 4px 12px rgba(234, 88, 12, .2);
        }
        .btn-secondary:hover {
            background-color: #c2410c;
            box-shadow: 0 8px 20px rgba(234, 88, 12, .3);
            color: #fff;
        }
        .btn-secondary:active {
            transform: scale(.97);
        }

        /* 卡片 */
        .card-base {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform .2s, box-shadow .2s, border-color .2s;
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, .3);
        }

        /* 频道pill */
        .nav-pill {
            display: inline-flex;
            align-items: center;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            font-size: .875rem;
            font-weight: 500;
            color: #4b5563;
            white-space: nowrap;
            transition: background-color .2s, color .2s;
        }
        .nav-pill:hover {
            background-color: rgba(15, 118, 110, .08);
            color: var(--color-primary);
        }
        .nav-pill.active {
            background-color: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }

        /* 表格/表单 */
        .form-input {
            border: 1px solid var(--color-border);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: .9375rem;
            width: 100%;
            background-color: #fff;
            transition: border-color .2s, box-shadow .2s;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, .12);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 12px;
            background-color: #fff;
            transition: border-color .2s, box-shadow .2s;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: rgba(15, 118, 110, .3);
        }
        .faq-item[open] {
            border-color: var(--color-primary);
            box-shadow: 0 4px 16px rgba(15, 118, 110, .08);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: .9375rem;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 1.25rem;
            color: var(--color-primary);
            transition: transform .2s;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item .faq-body {
            padding: 0 20px 16px;
            color: var(--color-muted);
            font-size: .875rem;
            line-height: 1.65;
            border-left: 3px solid var(--color-primary);
            margin-left: 20px;
            margin-right: 20px;
            margin-bottom: 16px;
            border-radius: 0 0 0 4px;
        }

        /* 案例图 */
        .case-img {
            object-fit: cover;
            width: 100%;
            height: 100%;
            transition: transform .3s ease;
            aspect-ratio: 16 / 10;
        }
        .case-img-wrap {
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #f0f0f0;
        }
        .case-card:hover .case-img {
            transform: scale(1.02);
        }
        .case-card .case-title:hover {
            color: var(--color-primary);
        }

        /* 步骤 */
        .step-dot {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
            background-color: #fff;
            font-size: .9375rem;
            transition: background-color .2s, color .2s, border-color .2s;
        }
        .step-item:hover .step-dot {
            background-color: var(--color-secondary);
            border-color: var(--color-secondary);
            color: #fff;
        }
        .step-line {
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), rgba(15, 118, 110, .2));
            border-radius: 2px;
        }

        /* 数据徽章 */
        .hero-badge {
            background-color: rgba(17, 24, 39, .55);
            backdrop-filter: blur(4px);
            border-radius: 12px;
            padding: 10px 20px;
            color: #fff;
            font-size: .875rem;
            border: 1px solid rgba(255, 255, 255, .12);
        }

        /* 深色板块 */
        .section-dark {
            background-color: var(--color-dark-bg);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        /* Footer */
        .footer-link {
            color: #9ca3af;
            font-size: .875rem;
            transition: color .2s;
        }
        .footer-link:hover {
            color: #fff;
        }

        /* 移动端搜索展开 */
        #mobile-search {
            background-color: #fff;
            padding: 12px 16px;
            border-bottom: 1px solid var(--color-border);
        }

        @media (max-width: 767px) {
            .container-page {
                padding-left: .75rem;
                padding-right: .75rem;
            }
            .hero-title {
                font-size: clamp(1.6rem, 5vw, 2.2rem) !important;
            }
        }

        /* 通知条 */
        .notice-bar {
            background: linear-gradient(90deg, rgba(15, 118, 110, .08), rgba(234, 88, 12, .06));
            border-radius: 12px;
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .875rem;
            border: 1px solid rgba(15, 118, 110, .15);
        }

/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #0F766E;
            --color-primary-dark: #115E59;
            --color-secondary: #EA580C;
            --color-secondary-dark: #C2410C;
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1F2937;
            --color-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-night: #111827;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(15, 118, 110, 0.06);
            --shadow-hover: 0 12px 32px rgba(15, 118, 110, 0.14);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-ink);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img,
        iframe {
            max-width: 100%;
            display: block;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        /* ========== 焦点可见性 ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ========== 容器 ========== */
        .container-page {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 768px) {
            .container-page {
                padding: 0 2rem;
            }
        }

        /* ========== 滚动条隐藏 ========== */
        .no-scrollbar {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }

        /* ========== 导航 ========== */
        .nav-channel-link {
            display: inline-block;
            padding: 0.45rem 1.1rem;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: #4b5563;
            white-space: nowrap;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .nav-channel-link:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--color-primary);
        }
        .nav-channel-link.active {
            background: var(--color-primary);
            color: #fff;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.65rem 1.5rem;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.4;
            transition: all 0.2s ease;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.4);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(15, 118, 110, 0.3);
        }
        .btn-outline {
            background: rgba(255, 255, 255, 0.1);
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: #fff;
            color: #fff;
        }
        .btn-outline:active {
            background: rgba(255, 255, 255, 0.15);
        }
        .btn-lg {
            padding: 0.85rem 2rem;
            font-size: 1rem;
            border-radius: 12px;
        }
        .btn-secondary {
            background: var(--color-secondary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(234, 88, 12, 0.3);
        }
        .btn-secondary:hover {
            background: var(--color-secondary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(234, 88, 12, 0.4);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }

        /* ========== 卡片 ========== */
        .card-hover {
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, 0.3);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--color-night);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.55;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(17, 24, 39, 0.85) 0%, rgba(15, 118, 110, 0.35) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 0.3rem 1rem;
            font-size: 0.8rem;
            color: #fff;
            backdrop-filter: blur(8px);
            margin-bottom: 1.2rem;
            transform: rotate(-2deg);
        }
        .hero-badge svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }
        .hero-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            line-height: 1.25;
            font-weight: 700;
            color: #fff;
            max-width: 680px;
            letter-spacing: -0.01em;
        }
        .hero-title-highlight {
            color: #fbbf24;
        }
        .hero-desc {
            font-size: 1.0625rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-top: 1rem;
        }
        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }
        .hero-stats {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .hero-stat-divider {
            width: 1px;
            height: 40px;
            background: rgba(255, 255, 255, 0.2);
        }

        /* ========== 板块标题 ========== */
        .section-head {
            margin-bottom: 2.5rem;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(15, 118, 110, 0.08);
            border-radius: 999px;
            padding: 0.25rem 0.85rem;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-ink);
        }
        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-muted);
            max-width: 560px;
            margin-top: 0.5rem;
            line-height: 1.6;
        }

        /* ========== 服务卡 ========== */
        .service-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            position: relative;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, 0.3);
        }
        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(15, 118, 110, 0.1);
            color: var(--color-primary);
            margin-bottom: 1rem;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .service-card:hover .service-icon {
            background: var(--color-primary);
            color: #fff;
        }
        .service-card .service-num {
            position: absolute;
            top: 1.25rem;
            right: 1.25rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: rgba(15, 118, 110, 0.25);
            letter-spacing: 0.05em;
        }
        .service-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .service-card p {
            font-size: 0.875rem;
            color: var(--color-muted);
            line-height: 1.55;
            margin-bottom: 0.8rem;
        }
        .service-card .service-link {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        .service-card:hover .service-link {
            color: var(--color-secondary);
        }

        /* ========== 数据板块 ========== */
        .data-section {
            background: var(--color-night);
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .data-item {
            text-align: center;
            padding: 1.5rem 0.5rem;
            border-radius: var(--radius-md);
            transition: background 0.2s ease;
        }
        .data-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .data-number {
            font-size: clamp(2rem, 3vw, 2.75rem);
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .data-number:hover {
            color: #fb923c;
        }
        .data-label {
            font-size: 0.9375rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0.4rem;
        }
        .data-desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.15rem;
        }
        .data-icon-dot {
            width: 32px;
            height: 4px;
            border-radius: 999px;
            background: var(--color-secondary);
            margin: 0 auto 0.75rem;
        }

        /* ========== 案例卡 ========== */
        .case-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, 0.3);
        }
        .case-card .case-thumb {
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .case-card .case-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .case-card:hover .case-thumb img {
            transform: scale(1.03);
        }
        .case-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: rgba(15, 118, 110, 0.9);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }
        .case-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--color-muted);
        }

        /* ========== 步骤条 ========== */
        .step-connector {
            flex: 1;
            height: 2px;
            background: linear-gradient(90deg, rgba(15, 118, 110, 0.4), rgba(234, 88, 12, 0.4));
            margin: 0 0.5rem;
            align-self: flex-start;
            margin-top: 2.2rem;
            border-radius: 2px;
        }
        .step-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            background: var(--color-bg);
            transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }
        .step-item:hover .step-dot {
            background: var(--color-secondary);
            border-color: var(--color-secondary);
            color: #fff;
        }

        /* ========== 时间线 ========== */
        .timeline-item {
            position: relative;
            padding-left: 2rem;
            padding-bottom: 2rem;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 6px;
            width: 2px;
            height: calc(100% - 24px);
            background: linear-gradient(180deg, var(--color-primary), rgba(15, 118, 110, 0.15));
        }
        .timeline-item:last-child::before {
            display: none;
        }
        .timeline-dot {
            position: absolute;
            left: 0;
            top: 4px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.3);
        }
        .timeline-year {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-secondary);
            background: rgba(234, 88, 12, 0.1);
            display: inline-block;
            padding: 0.15rem 0.6rem;
            border-radius: 999px;
        }
        .timeline-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 0.4rem 0 0.2rem;
        }
        .timeline-desc {
            font-size: 0.875rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        /* ========== 资讯列表 ========== */
        .news-list-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding: 0.85rem 1rem;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            transition: background 0.2s ease, border-color 0.2s ease;
        }
        .news-list-item:hover {
            background: var(--color-surface);
            border-color: var(--color-border);
        }
        .news-list-item .news-title {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-ink);
            line-height: 1.45;
        }
        .news-list-item:hover .news-title {
            color: var(--color-primary);
        }
        .news-list-item .news-date {
            font-size: 0.8rem;
            color: var(--color-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(15, 118, 110, 0.3);
        }
        .faq-item details>summary {
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 0.9375rem;
            list-style: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
        }
        .faq-item details>summary::-webkit-details-marker {
            display: none;
        }
        .faq-item details>summary::after {
            content: "+";
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--color-primary);
            transition: transform 0.2s ease;
            line-height: 1;
        }
        .faq-item details[open]>summary::after {
            transform: rotate(45deg);
        }
        .faq-item details>p {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
        }
        .faq-item details[open] {
            border-color: rgba(15, 118, 110, 0.25);
            box-shadow: 0 2px 12px rgba(15, 118, 110, 0.04);
        }

        /* ========== CTA / 表单 ========== */
        .contact-card {
            background: linear-gradient(135deg, var(--color-primary), #134e4a);
            border-radius: 20px;
            padding: 2rem;
            position: relative;
            overflow: hidden;
        }
        .contact-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 20px 20px;
            pointer-events: none;
        }
        .form-control {
            width: 100%;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            padding: 0.6rem 0.9rem;
            font-size: 0.9rem;
            background: #fff;
            color: var(--color-ink);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #111827;
            color: rgba(255, 255, 255, 0.6);
            padding-top: 3rem;
        }
        .site-footer h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            transition: color 0.2s ease;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.25rem 0;
            margin-top: 2.5rem;
        }

        /* ========== 提示条 ========== */
        .tip-banner {
            background: rgba(15, 118, 110, 0.07);
            border: 1px dashed rgba(15, 118, 110, 0.4);
            border-radius: var(--radius-md);
            padding: 0.9rem 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--color-primary);
            font-weight: 500;
        }
        .tip-banner svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 640px) {
            .hero {
                min-height: auto;
                padding: 3.5rem 0;
            }
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta .btn {
                justify-content: center;
            }
            .hero-stats {
                gap: 0.8rem;
            }
            .step-connector {
                display: none;
            }
            .timeline-item {
                padding-left: 1.75rem;
            }
            .contact-card {
                padding: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.25rem;
            }
            .news-list-item .news-date {
                font-size: 0.75rem;
            }
        }

        /* 隐藏移动端搜索按钮等 */
        .search-mobile-toggle {
            display: none;
        }

        @media (max-width: 768px) {
            .search-box-desktop {
                display: none;
            }
            .search-mobile-toggle {
                display: inline-flex;
            }
        }

        @media (min-width: 769px) {
            .search-mobile-toggle {
                display: none;
            }
        }