/* roulang page: index */
:root {
            --huotao: #E98A5F;
            --huotao-dark: #C96B40;
            --huotao-light: #FFE3D1;
            --cream: #FFF6ED;
            --leaf: #2F6B4F;
            --leaf-dark: #1F4A36;
            --leaf-light: #DCEDE2;
            --ink: #3E3A36;
            --ink-soft: #6B6259;
            --border-soft: rgba(233, 138, 95, 0.18);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--cream);
            color: var(--ink);
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            cursor: pointer;
        }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 2px solid var(--huotao);
            outline-offset: 2px;
        }
        .container-x {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .text-gradient {
            background: linear-gradient(135deg, #E98A5F, #bc5f3a);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            background-color: var(--huotao);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid transparent;
            transition: all 0.25s ease;
            box-shadow: 0 10px 25px -8px rgba(233, 138, 95, 0.5);
        }
        .btn-primary:hover {
            background-color: var(--huotao-dark);
            transform: translateY(-2px);
            box-shadow: 0 18px 30px -10px rgba(201, 103, 64, 0.5);
        }
        .btn-primary:active {
            transform: translateY(0px);
            box-shadow: 0 5px 15px -5px rgba(201, 103, 64, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            border: 2px solid rgba(233, 138, 95, 0.5);
            background-color: transparent;
            color: var(--huotao-dark);
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.25s ease;
        }
        .btn-outline:hover {
            background-color: rgba(233, 138, 95, 0.08);
            border-color: var(--huotao);
        }

        /* section spacing */
        .section-pad {
            padding: 5rem 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 3.5rem 0;
            }
        }

        .badge-trust {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            background-color: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(233, 138, 95, 0.25);
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--ink-soft);
            backdrop-filter: blur(4px);
            white-space: nowrap;
        }

        /* FAQ accordion */
        .faq-item {
            background: #fff;
            border-radius: 1.25rem;
            border: 1px solid rgba(233, 138, 95, 0.12);
            transition: box-shadow 0.3s;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-item:hover {
            box-shadow: 0 8px 24px rgba(233, 138, 95, 0.12);
        }
        .faq-question {
            padding: 1.5rem 1.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.075rem;
            color: var(--ink);
            gap: 1rem;
        }
        .faq-icon {
            min-width: 1.25rem;
            width: 1.25rem;
            height: 1.25rem;
            position: relative;
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--huotao);
            border-radius: 2px;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
        }
        .faq-icon::before {
            width: 1.25rem;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 1.25rem;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 1.75rem 1.5rem;
            color: var(--ink-soft);
            line-height: 1.85;
        }

        /* nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(255, 246, 237, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(233, 138, 95, 0.15);
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(255, 246, 237, 0.98);
            box-shadow: 0 8px 25px -12px rgba(201, 103, 64, 0.2);
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--ink);
        }
        .site-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #F4A67A, #D96A3E);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 6px 14px rgba(217, 106, 62, 0.35);
        }
        .leaf-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--leaf);
            display: inline-block;
            margin-right: 4px;
        }

        /* comparison rows */
        .cmp-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 24px;
            height: 24px;
            border-radius: 50%;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        /* form */
        .form-input {
            width: 100%;
            padding: 0.85rem 1.25rem;
            border-radius: 1rem;
            border: 1px solid rgba(62, 58, 54, 0.15);
            background: #fff;
            font-size: 1rem;
            transition: all 0.2s;
            font-family: inherit;
        }
        .form-input:focus {
            border-color: var(--huotao);
            box-shadow: 0 0 0 4px rgba(233, 138, 95, 0.12);
            outline: none;
        }
        select.form-input {
            appearance: none;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%23E98A5F" stroke-width="3" stroke-linecap="round"><polyline points="6 9 12 15 18 9"/></svg>');
            background-repeat: no-repeat;
            background-position: right 1.25rem center;
        }

        /* hero */
        .hero-wrap {
            background-size: cover;
            background-position: center 30%;
            position: relative;
            padding-top: 72px;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(255, 246, 237, 0.97) 0%, rgba(255, 246, 237, 0.82) 45%, rgba(255, 246, 237, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 5;
            min-height: calc(75vh - 0px);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* mobile scroll tags */
        .scroll-tags {
            display: flex;
            gap: 0.5rem;
            overflow-x: auto;
            padding-bottom: 0.5rem;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .scroll-tags::-webkit-scrollbar {
            display: none;
        }
        .tag-chip {
            flex-shrink: 0;
            padding: 0.4rem 1.2rem;
            border-radius: 9999px;
            background: #fff;
            border: 1px solid rgba(233, 138, 95, 0.2);
            font-size: 0.9rem;
            white-space: nowrap;
        }
        .tag-chip.active {
            background: var(--huotao);
            color: #fff;
            border-color: var(--huotao);
        }

        .info-line {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: var(--ink-soft);
        }
        .info-line .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            margin-top: 0.6rem;
            flex-shrink: 0;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 0.8rem;
            padding: 0.25rem 0.8rem;
            background: var(--huotao-light);
            color: #9d4d2e;
            border-radius: 9999px;
            font-weight: 500;
        }
        .badge-green {
            background: var(--leaf-light);
            color: var(--leaf);
        }

        /* rich list */
        .rich-list li {
            position: relative;
            padding-left: 0.5rem;
            margin-bottom: 0.4rem;
            line-height: 1.65;
            font-size: 0.95rem;
        }

/* roulang page: category1 */
:root {
    --huotao: #E98A5F;
    --huotao-dark: #C96B40;
    --huotao-light: #FFE3D1;
    --cream: #FFF6ED;
    --leaf: #2F6B4F;
    --leaf-dark: #1F4A36;
    --leaf-light: #DCEDE2;
    --ink: #3E3A36;
    --ink-soft: #6B6259;
    --border-soft: rgba(233, 138, 95, 0.18);
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background-color: var(--cream);
    color: var(--ink);
    line-height: 1.7;
    overflow-x: hidden;
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
  }
  button {
    cursor: pointer;
  }
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--huotao);
    outline-offset: 2px;
  }
  .container-x {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .text-gradient {
    background: linear-gradient(135deg, #E98A5F, #bc5f3a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    border-radius: 9999px;
    background-color: var(--huotao);
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid transparent;
    transition: all 0.25s ease;
    box-shadow: 0 10px 25px -8px rgba(233, 138, 95, 0.5);
  }
  .btn-primary:hover {
    background-color: var(--huotao-dark);
    transform: translateY(-2px);
    box-shadow: 0 18px 30px -10px rgba(201, 103, 64, 0.5);
  }
  .btn-primary:active {
    transform: translateY(0px);
    box-shadow: 0 5px 15px -5px rgba(201, 103, 64, 0.4);
  }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    border-radius: 9999px;
    border: 2px solid rgba(233, 138, 95, 0.5);
    background-color: transparent;
    color: var(--huotao-dark);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.25s ease;
  }
  .btn-outline:hover {
    background-color: rgba(233, 138, 95, 0.08);
    border-color: var(--huotao);
  }
  .btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    border-radius: 9999px;
    border: 2px solid rgba(255, 255, 255, 0.65);
    background-color: transparent;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.25s ease;
  }
  .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.12);
    border-color: #fff;
  }
  .badge-trust {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    background-color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ink-soft);
    backdrop-filter: blur(4px);
    white-space: nowrap;
  }
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(255, 246, 237, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(233, 138, 95, 0.15);
    transition: all 0.3s ease;
  }
  .site-header.scrolled {
    background: rgba(255, 246, 237, 0.98);
    box-shadow: 0 8px 25px -12px rgba(201, 103, 64, 0.2);
  }
  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
  }
  .site-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--ink);
  }
  .site-logo .logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, #F4A67A, #D96A3E);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    box-shadow: 0 6px 14px rgba(217, 106, 62, 0.35);
  }
  .faq-item {
    background: #fff;
    border-radius: 1.25rem;
    border: 1px solid rgba(233, 138, 95, 0.12);
    transition: box-shadow 0.3s;
    margin-bottom: 1rem;
    overflow: hidden;
  }
  .faq-item:hover {
    box-shadow: 0 8px 24px rgba(233, 138, 95, 0.12);
  }
  .faq-question {
    padding: 1.5rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.075rem;
    color: var(--ink);
    gap: 1rem;
  }
  .faq-icon {
    min-width: 1.25rem;
    width: 1.25rem;
    height: 1.25rem;
    position: relative;
    transition: transform 0.3s;
    flex-shrink: 0;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background-color: var(--huotao);
    border-radius: 2px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .faq-icon::before {
    width: 1.25rem;
    height: 2px;
  }
  .faq-icon::after {
    width: 2px;
    height: 1.25rem;
  }
  .faq-item.active .faq-icon {
    transform: rotate(45deg);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .faq-answer-inner {
    padding: 0 1.75rem 1.5rem;
    color: var(--ink-soft);
    line-height: 1.85;
  }
  .service-card {
    border-radius: 1.75rem;
    background: #fff;
    border: 1px solid rgba(233, 138, 95, 0.12);
    transition: all 0.3s ease;
  }
  .service-card:hover {
    box-shadow: 0 24px 45px -20px rgba(201, 103, 64, 0.32);
    transform: translateY(-3px);
    border-color: rgba(233, 138, 95, 0.25);
  }
  .step-card {
    background: #fff;
    border-radius: 1.5rem;
    border: 1px solid rgba(233, 138, 95, 0.12);
    position: relative;
    transition: all 0.3s ease;
  }
  .step-card:hover {
    box-shadow: 0 18px 38px -18px rgba(201, 103, 64, 0.28);
  }
  .testi-card {
    background: #fff;
    border-radius: 1.5rem;
    border: 1px solid rgba(47, 107, 79, 0.1);
    transition: all 0.3s ease;
  }
  .testi-card:hover {
    box-shadow: 0 16px 40px -20px rgba(47, 107, 79, 0.25);
  }
  .compare-card {
    border-radius: 1.75rem;
    background: #fff;
    border: 1px solid rgba(233, 138, 95, 0.12);
  }
  .compare-good {
    background: linear-gradient(145deg, #F7FBF9, #EEF6F1);
    border: 1px solid rgba(47, 107, 79, 0.2);
  }
  .cmp-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 9999px;
    flex-shrink: 0;
    font-size: 0.8rem;
    font-weight: 700;
  }
  .cmp-times {
    background: #f7edf0;
    color: #b16578;
  }
  .cmp-check {
    background: var(--leaf-light);
    color: var(--leaf);
  }
  .section-pad {
    padding: 5rem 0;
  }
  .input-field {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border-radius: 0.9rem;
    border: 1px solid rgba(233, 138, 95, 0.22);
    background: #FFFDFB;
    font-size: 1rem;
    color: var(--ink);
    transition: all 0.25s ease;
  }
  .input-field:focus {
    outline: none;
    border-color: var(--huotao);
    box-shadow: 0 0 0 4px rgba(233, 138, 95, 0.15);
    background: #fff;
  }
  .input-field::placeholder {
    color: #aaa09a;
  }
  select.input-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath d='M1 1l6 7 6-7' stroke='%23C96B40' stroke-width='1.8' fill='none' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.2rem center;
    padding-right: 2.8rem;
  }
  @media (max-width: 640px) {
    .section-pad {
      padding: 3.5rem 0;
    }
    .container-x {
      padding-left: 1rem;
      padding-right: 1rem;
    }
    .faq-question {
      padding: 1.2rem 1.2rem;
      font-size: 1rem;
    }
    .faq-answer-inner {
      padding: 0 1.2rem 1.2rem;
    }
  }