<style>
/* 
    This part is normally in the ./assets/style.css file. 
    I will provide the CSS code here as requested for the structure.
*/
</style>
```

```css
/* ./assets/style.css */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body.treelyHerbalBalanceGuideMainBody {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: hidden;
}

.treelyHerbalBalanceGuideContainer {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
.treelyHerbalBalanceGuideH1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: -1px;
}

.treelyHerbalBalanceGuideH2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #22d3ee;
    text-align: center;
}

.treelyHerbalBalanceGuideSubTitle {
    font-size: 1.25rem;
    color: #a7f3d0;
    margin-bottom: 25px;
}

/* Header & Nav */
.treelyHerbalBalanceGuideHeader {
    background: rgba(15, 23, 42, 0.95);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.treelyHerbalBalanceGuideNavWrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.treelyHerbalBalanceGuideLogo {
    font-size: 1.8rem;
    font-weight: 800;
    color: #22d3ee;
    text-transform: lowercase;
    font-style: italic;
}

.treelyHerbalBalanceGuideNav .treelyHerbalBalanceGuideMenuList {
    display: flex;
    list-style: none;
    gap: 30px;
}

.treelyHerbalBalanceGuideNavLink {
    text-decoration: none;
    color: #e2e8f0;
    font-weight: 500;
    transition: color 0.3s ease;
}

.treelyHerbalBalanceGuideNavLink:hover {
    color: #22d3ee;
}

.treelyHerbalBalanceGuideNeonLine {
    height: 2px;
    background: #22d3ee;
    box-shadow: 0 0 10px #22d3ee, 0 0 20px #22d3ee;
}

/* Burger Menu */
.treelyHerbalBalanceGuideCheckbox {
    display: none;
}

.treelyHerbalBalanceGuideBurger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.treelyHerbalBalanceGuideBurger span {
    width: 25px;
    height: 3px;
    background-color: #22d3ee;
    transition: 0.3s;
}

/* Hero Section */
.treelyHerbalBalanceGuideHeroSection {
    padding: 100px 0;
}

.treelyHerbalBalanceGuideHeroGrid {
    display: flex;
    align-items: center;
    gap: 50px;
}

.treelyHerbalBalanceGuideHeroImageWrapper {
    flex: 1;
    position: relative;
}

.treelyHerbalBalanceGuideHeroImg {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.2);
}

.treelyHerbalBalanceGuideBadge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: #22d3ee;
    color: #0f172a;
    padding: 5px 15px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 0.9rem;
    box-shadow: 0 0 15px #22d3ee;
}

.treelyHerbalBalanceGuideHeroText {
    flex: 1;
}

.treelyHerbalBalanceGuideHeroP {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #cbd5e1;
}

.treelyHerbalBalanceGuideCtaBtn {
    display: inline-block;
    padding: 15px 40px;
    background-color: transparent;
    color: #22d3ee;
    border: 2px solid #22d3ee;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    margin-top: 20px;
    transition: 0.3s;
    text-transform: uppercase;
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.3);
}

.treelyHerbalBalanceGuideCtaBtn:hover {
    background-color: #22d3ee;
    color: #0f172a;
    box-shadow: 0 0 25px #22d3ee;
}

.treelyHerbalBalanceGuideDisclaimerSmallText {
    font-size: 0.8rem;
    margin-top: 25px;
    color: #64748b;
    font-style: italic;
}

/* FAQ Section */
.treelyHerbalBalanceGuideFaqSection {
    padding: 80px 0;
    background-color: rgba(30, 41, 59, 0.5);
}

.treelyHerbalBalanceGuideFaqList {
    max-width: 800px;
    margin: 0 auto;
}

.treelyHerbalBalanceGuideFaqItem {
    border-bottom: 1px solid rgba(167, 243, 208, 0.2);
    padding: 15px 0;
}

.treelyHerbalBalanceGuideFaqSummary {
    list-style: none;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    color: #a7f3d0;
    padding: 10px 0;
    position: relative;
}

.treelyHerbalBalanceGuideFaqSummary::after {
    content: '+';
    position: absolute;
    right: 10px;
    color: #22d3ee;
}

.treelyHerbalBalanceGuideFaqItem[open] .treelyHerbalBalanceGuideFaqSummary::after {
    content: '-';
}

.treelyHerbalBalanceGuideFaqContent {
    padding: 10px 0 20px;
    color: #cbd5e1;
}

/* Regular Practice Section */
.treelyHerbalBalanceGuidePracticeSection {
    padding: 100px 0;
}

.treelyHerbalBalanceGuidePracticeGrid {
    display: flex;
    align-items: center;
    gap: 60px;
}

.treelyHerbalBalanceGuidePracticeText {
    flex: 1.2;
}

.treelyHerbalBalanceGuidePracticeImage {
    flex: 0.8;
}

.treelyHerbalBalanceGuideImgRounded {
    width: 100%;
    height: auto;
    border-radius: 50% 20% 50% 20%;
    border: 2px solid #22d3ee;
}

.treelyHerbalBalanceGuideHighlight {
    background: rgba(34, 211, 238, 0.1);
    border-left: 4px solid #22d3ee;
    padding: 20px;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 30px 0;
    color: #ffffff;
}

.treelyHerbalBalanceGuideBenefitList {
    list-style: none;
}

.treelyHerbalBalanceGuideBenefitList li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 15px;
}

.treelyHerbalBalanceGuideBenefitList li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22d3ee;
    font-weight: bold;
}

/* Expert Quote Section */
.treelyHerbalBalanceGuideExpertSection {
    padding: 80px 0;
}

.treelyHerbalBalanceGuideQuoteCard {
    background: #1e293b;
    padding: 50px;
    border-radius: 30px;
    border: 1px solid rgba(34, 211, 238, 0.3);
}

.treelyHerbalBalanceGuideQuoteFlex {
    display: flex;
    align-items: center;
    gap: 40px;
}

.treelyHerbalBalanceGuideAvatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #22d3ee;
}

.treelyHerbalBalanceGuideQuoteText p {
    font-size: 1.4rem;
    font-style: italic;
    color: #e2e8f0;
    margin-bottom: 20px;
}

.treelyHerbalBalanceGuideExpertName {
    font-size: 1.5rem;
    color: #22d3ee;
    margin-bottom: 5px;
}

.treelyHerbalBalanceGuideExpertTitle {
    color: #a7f3d0;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* 3 Big Text Sections */
.treelyHerbalBalanceGuideTextSection {
    padding: 100px 0;
}

.treelyHerbalBalanceGuideDarkerBg {
    background-color: rgba(2, 6, 23, 0.8);
}

.treelyHerbalBalanceGuideTextContent {
    max-width: 900px;
    margin: 0 auto;
}

.treelyHerbalBalanceGuideTextContent p {
    margin-bottom: 25px;
    font-size: 1.15rem;
}

.treelyHerbalBalanceGuideTextList {
    margin: 30px 0;
    list-style: none;
}

.treelyHerbalBalanceGuideTextList li {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.treelyHerbalBalanceGuideTextList li strong {
    color: #22d3ee;
}

.treelyHerbalBalanceGuideImportant {
    border: 1px dashed #a7f3d0;
    padding: 25px;
    border-radius: 10px;
    color: #a7f3d0;
    font-weight: 500;
}

/* Audience Section */
.treelyHerbalBalanceGuideAudienceSection {
    padding: 80px 0;
    text-align: center;
}

.treelyHerbalBalanceGuideAudienceIntro {
    margin-bottom: 50px;
    font-size: 1.2rem;
}

.treelyHerbalBalanceGuideAudienceGrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.treelyHerbalBalanceGuideAudienceCard {
    background: #1e293b;
    padding: 40px;
    border-radius: 20px;
    transition: transform 0.3s ease;
}

.treelyHerbalBalanceGuideAudienceCard:hover {
    transform: translateY(-10px);
}

.treelyHerbalBalanceGuideAudienceIcon {
    margin-bottom: 20px;
    border-radius: 50%;
}

.treelyHerbalBalanceGuideAudienceCard h3 {
    color: #22d3ee;
    margin-bottom: 15px;
}

/* Pricing Section */
.treelyHerbalBalanceGuidePricingSection {
    padding: 100px 0;
}

.treelyHerbalBalanceGuidePricingGrid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.treelyHerbalBalanceGuidePriceCard {
    background: #1e293b;
    padding: 40px;
    border-radius: 20px;
    width: 350px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    position: relative;
}

.treelyHerbalBalanceGuidePriceFeatured {
    border: 2px solid #22d3ee;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
    transform: scale(1.05);
}

.treelyHerbalBalanceGuidePopularBadge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #22d3ee;
    color: #0f172a;
    padding: 5px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.8rem;
}

.treelyHerbalBalanceGuidePriceHeader h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.treelyHerbalBalanceGuidePriceVal {
    font-size: 2.5rem;
    font-weight: 800;
    color: #22d3ee;
    margin-bottom: 30px;
}

.treelyHerbalBalanceGuidePriceList {
    list-style: none;
    margin-bottom: 40px;
    flex-grow: 1;
}

.treelyHerbalBalanceGuidePriceList li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.treelyHerbalBalanceGuidePriceList li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #22d3ee;
}

.treelyHerbalBalanceGuidePriceBtn {
    display: block;
    text-align: center;
    padding: 12px;
    border: 1px solid #22d3ee;
    color: #22d3ee;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}

.treelyHerbalBalanceGuidePriceBtn:hover {
    background: #22d3ee;
    color: #0f172a;
}

/* Form Section */
.treelyHerbalBalanceGuideFormSection {
    padding: 100px 0;
}

.treelyHerbalBalanceGuideFormBox {
    max-width: 600px;
    margin: 0 auto;
    background: #1e293b;
    padding: 50px;
    border-radius: 30px;
}

.treelyHerbalBalanceGuideFormSub {
    text-align: center;
    margin-bottom: 40px;
    color: #cbd5e1;
}

.treelyHerbalBalanceGuideInputGroup {
    margin-bottom: 25px;
}

.treelyHerbalBalanceGuideInputGroup label {
    display: block;
    margin-bottom: 8px;
    color: #a7f3d0;
}

.treelyHerbalBalanceGuideInputGroup input,
.treelyHerbalBalanceGuideInputGroup textarea {
    width: 100%;
    padding: 15px;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 8px;
    color: #ffffff;
    font-family: inherit;
}

.treelyHerbalBalanceGuideCheckboxGroup {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

.treelyHerbalBalanceGuideCheckboxGroup a {
    color: #22d3ee;
}

.treelyHerbalBalanceGuideSubmitBtn {
    width: 100%;
    padding: 18px;
    background-color: #22d3ee;
    color: #0f172a;
    border: none;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.4);
    transition: 0.3s;
}

.treelyHerbalBalanceGuideSubmitBtn:hover {
    box-shadow: 0 0 30px #22d3ee;
}

/* Footer */
.treelyHerbalBalanceGuideFooter {
    padding: 60px 0;
    background: #020617;
    text-align: center;
}

.treelyHerbalBalanceGuideFooterEmail {
    margin: 20px 0;
}

.treelyHerbalBalanceGuideFooterEmail a {
    color: #22d3ee;
}

.treelyHerbalBalanceGuideFooterLinks {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.treelyHerbalBalanceGuideFooterLinks a {
    color: #64748b;
    text-decoration: none;
    font-size: 0.85rem;
}

.treelyHerbalBalanceGuideFooterLinks a:hover {
    color: #e2e8f0;
}

/* Responsive */
@media (max-width: 992px) {
    .treelyHerbalBalanceGuideH1 { font-size: 2.5rem; }
    .treelyHerbalBalanceGuideHeroGrid, 
    .treelyHerbalBalanceGuidePracticeGrid,
    .treelyHerbalBalanceGuideQuoteFlex {
        flex-direction: column;
    }
    .treelyHerbalBalanceGuideHeroImageWrapper, .treelyHerbalBalanceGuideHeroText,
    .treelyHerbalBalanceGuidePracticeText, .treelyHerbalBalanceGuidePracticeImage {
        width: 100%;
    }
    .treelyHerbalBalanceGuidePriceFeatured {
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .treelyHerbalBalanceGuideBurger {
        display: flex;
    }
    .treelyHerbalBalanceGuideNav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: 100%;
        background: #0f172a;
        transition: 0.4s;
    }
    .treelyHerbalBalanceGuideNav .treelyHerbalBalanceGuideMenuList {
        flex-direction: column;
        align-items: center;
        padding-top: 50px;
    }
    .treelyHerbalBalanceGuideCheckbox:checked ~ .treelyHerbalBalanceGuideNav {
        left: 0;
    }
    .treelyHerbalBalanceGuidePricingGrid {
        flex-direction: column;
        align-items: center;
    }
    .treelyHerbalBalanceGuidePriceCard {
        width: 100%;
    }
}
</style>

```

```html