:root {
--gold: hsl(45, 100%, 70%);
--gold-dark: hsl(45, 100%, 55%);
--gold-light: hsl(45, 100%, 85%);
--bg-primary: #0a0a0a;
--bg-secondary: #121212;
--text-primary: #ffffff;
--text-secondary: #cccccc;
--text-muted: #999999;
}

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

body {
font-family: 'Montserrat', sans-serif;
background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
color: var(--text-primary);
min-height: 100vh;
line-height: 1.5;
}

.container {
width: 100%;
max-width: 800px;
margin: 0 auto;
padding: 0 20px;
}

/* Header */
.header {
padding: 15px 0;
background: rgba(0, 0, 0, 0.2);
backdrop-filter: blur(10px);
}

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

.logo {
display: flex;
align-items: center;
gap: 8px;
font-size: 18px;
font-weight: 600;
color: var(--gold);
}

.logo-img {
width: 24px;
height: 24px;
object-fit: contain;
}

.login-btn {
padding: 8px 16px;
background: transparent;
border: 1px solid var(--gold);
color: var(--gold);
border-radius: 20px;
font-family: 'Montserrat', sans-serif;
font-weight: 500;
font-size: 14px;
cursor: pointer;
transition: all 0.3s ease;
text-decoration: none;
}

.login-btn:hover {
background: var(--gold);
color: #000;
transform: translateY(-1px);
}

/* Hero Section */
.hero {
padding: 30px 0 20px;
text-align: center;
background: var(--bg-primary);
}

.hero h1 {
font-size: clamp(1.8rem, 4vw, 2.5rem);
font-weight: 700;
line-height: 1.3;
margin-bottom: 20px;
}

.hero h1 .highlight {
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.hero-subtitle {
font-size: clamp(0.9rem, 2vw, 1rem);
font-weight: 400;
color: var(--text-secondary);
margin-bottom: 25px;
max-width: 600px;
margin-left: auto;
margin-right: auto;
line-height: 1.6;
}

.hero-subtitle .update-time {
color: var(--gold);
font-weight: 600;
}

/* Video Section */
.video-section {
background: var(--bg-primary);
padding-bottom: 30px;
}

.vturb-player {
width: 100%;
max-width: 100%;
border-radius: 10px;
overflow: hidden;
border: 2px solid rgba(255, 215, 0, 0.3);
box-shadow: 0 4px 15px rgba(255, 215, 0, 0.1);
}

/* CTA Button */
.cta-section {
text-align: center;
padding-bottom: 40px;
background: var(--bg-primary);
}

.cta-button {
display: inline-block;
padding: 14px 32px;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
color: #000;
text-decoration: none;
border-radius: 25px;
font-size: 16px;
font-weight: 600;
transition: all 0.3s ease;
box-shadow: 0 6px 16px rgba(255, 215, 0, 0.25);
}

.cta-button:hover {
transform: translateY(-2px);
box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
}

/* Second Section */
.second-section {
padding: 50px 0;
background: var(--bg-secondary);
position: relative;
}

.section-content {
position: relative;
z-index: 2;
text-align: center;
}

.second-section h2 {
font-size: clamp(1.6rem, 3.5vw, 2.2rem);
font-weight: 700;
line-height: 1.3;
margin-bottom: 30px;
color: var(--text-primary);
}

.second-section h2 .highlight {
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.section-text {
font-size: clamp(0.9rem, 1.8vw, 1rem);
font-weight: 400;
color: var(--text-secondary);
line-height: 1.6;
margin-bottom: 20px;
max-width: 700px;
margin-left: auto;
margin-right: auto;
}

.section-text .emphasis {
color: var(--text-primary);
font-weight: 600;
}

.section-text .brand-highlight {
color: var(--gold);
font-weight: 600;
}

.section-highlight {
font-size: clamp(1rem, 2.2vw, 1.2rem);
font-weight: 600;
margin: 30px 0;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

/* Third Section */
.third-section {
padding: 60px 0;
background: var(--bg-primary);
position: relative;
}

.section-title {
font-size: clamp(1.6rem, 3.5vw, 2.2rem);
font-weight: 700;
text-align: center;
margin-bottom: 50px;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.benefits-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 30px;
margin-bottom: 50px;
}

.benefit-card {
background: linear-gradient(145deg, #1a1a1a, #0f0f0f);
border: 1px solid rgba(255, 255, 255, 0.05);
border-radius: 12px;
padding: 30px;
text-align: center;
transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
transform: translateY(-5px);
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.benefit-icon {
margin-bottom: 20px;
display: flex;
justify-content: center;
align-items: center;
}

.icon-img {
width: 50px;
height: 50px;
filter: brightness(0) saturate(100%) invert(81%) sepia(100%) saturate(320%) hue-rotate(0deg) brightness(107%) contrast(102%);
}

.benefit-title {
font-size: clamp(1rem, 2vw, 1.2rem);
font-weight: 600;
color: var(--gold);
margin-bottom: 15px;
line-height: 1.3;
}

.benefit-description {
font-size: clamp(0.85rem, 1.6vw, 0.95rem);
color: var(--text-secondary);
line-height: 1.5;
}

.highlight-text {
text-align: center;
padding: 40px 0;
}

.highlight-title {
font-size: clamp(1.4rem, 3vw, 1.8rem);
font-weight: 700;
color: var(--text-primary);
margin-bottom: 10px;
}

.highlight-number {
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
transition: all 0.3s ease;
}

.highlight-subtitle {
font-size: clamp(0.9rem, 1.8vw, 1rem);
color: var(--text-muted);
margin-bottom: 15px;
}

.highlight-description {
font-size: clamp(0.9rem, 1.8vw, 1rem);
color: var(--text-secondary);
line-height: 1.6;
max-width: 600px;
margin: 0 auto;
}

/* Fourth Section */
.fourth-section {
padding: 60px 0;
background: var(--bg-secondary);
position: relative;
}

.fourth-section .section-title {
color: var(--text-primary);
}

.fourth-section .section-title .highlight {
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.section-description {
font-size: clamp(0.9rem, 1.8vw, 1rem);
color: var(--text-secondary);
text-align: center;
line-height: 1.6;
max-width: 700px;
margin: 0 auto 50px auto;
}

.comparison-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 30px;
}

.comparison-card {
background: linear-gradient(145deg, #1a1a1a, #0f0f0f);
border-radius: 12px;
padding: 30px;
transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.comparison-card:hover {
transform: translateY(-5px);
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.comparison-card.negative {
border: 1px solid rgba(255, 68, 68, 0.2);
}

.comparison-card.positive {
border: 1px solid rgba(255, 215, 0, 0.2);
}

.comparison-title {
font-size: clamp(1rem, 2vw, 1.2rem);
font-weight: 700;
margin-bottom: 25px;
text-align: left;
}

.comparison-card.negative .comparison-title {
color: #ff4444;
}

.comparison-card.positive .comparison-title {
color: var(--gold);
}

.comparison-list {
list-style: none;
padding: 0;
margin: 0;
}

.comparison-item {
display: flex;
align-items: flex-start;
gap: 10px;
margin-bottom: 15px;
font-size: clamp(0.85rem, 1.6vw, 0.95rem);
line-height: 1.5;
color: var(--text-secondary);
text-align: left;
}

.comparison-item:last-child {
margin-bottom: 0;
}

.icon {
font-size: 10px;
font-weight: normal;
flex-shrink: 0;
width: 14px;
height: 14px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
margin-top: 3px;
}

.negative-icon {
background: rgba(255, 68, 68, 0.8);
color: var(--text-primary);
}

.positive-icon {
background: var(--gold);
color: #000000;
}

/* Sixth Section */
.sixth-section {
padding: 60px 0;
background: var(--bg-primary);
position: relative;
}

.sixth-section .benefits-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 25px;
}

.benefit-item {
background: linear-gradient(145deg, #1a1a1a, #0f0f0f);
border: 1px solid rgba(255, 255, 255, 0.05);
border-radius: 12px;
padding: 30px;
transition: transform 0.3s ease, box-shadow 0.3s ease;
display: flex;
flex-direction: column;
}

.benefit-item:hover {
transform: translateY(-3px);
box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.centered-item {
grid-column: 1 / -1;
max-width: 600px;
margin: 0 auto;
width: 100%;
}

.benefit-item .benefit-title {
font-size: clamp(1.2rem, 2.5vw, 1.4rem);
font-weight: 700;
margin-bottom: 20px;
line-height: 1.3;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.benefit-item .benefit-description {
font-size: clamp(0.95rem, 1.8vw, 1rem);
color: var(--text-secondary);
line-height: 1.6;
margin-bottom: 15px;
font-style: italic;
}

.benefit-list {
list-style: none;
padding: 0;
margin: 0;
display: flex;
flex-direction: column;
gap: 12px;
flex-grow: 1;
}

.benefit-list li {
display: flex;
align-items: flex-start;
gap: 12px;
font-size: clamp(0.9rem, 1.8vw, 1rem);
line-height: 1.6;
color: var(--text-secondary);
}

.benefit-list li::before {
content: "✓";
font-size: 14px;
font-weight: bold;
color: var(--gold);
background: rgba(255, 215, 0, 0.1);
border-radius: 50%;
width: 20px;
height: 20px;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
margin-top: 2px;
}

/* Seventh Section */
.seventh-section {
padding: 60px 0;
background: var(--bg-secondary);
position: relative;
}

.investment-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 40px;
align-items: center;
}

.price-card {
background: linear-gradient(145deg, #1a1a1a, #0f0f0f);
border: 1px solid rgba(255, 215, 0, 0.2);
border-radius: 15px;
padding: 40px;
text-align: center;
display: flex;
flex-direction: column;
justify-content: center;
transition: transform 0.3s ease, box-shadow 0.3s ease;
align-self: center;
}

.price-card:hover {
transform: translateY(-5px);
box-shadow: 0 15px 40px rgba(255, 215, 0, 0.1);
}

.price-title {
font-size: clamp(1.8rem, 3vw, 2.2rem);
font-weight: 700;
margin-bottom: 15px;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}

.price-subtitle {
font-size: clamp(1rem, 1.8vw, 1.1rem);
color: var(--text-secondary);
margin-bottom: 20px;
line-height: 1.4;
}

.price-amount {
font-size: clamp(2.5rem, 5vw, 3.5rem);
font-weight: 800;
margin-bottom: 30px;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
line-height: 1;
}

.seventh-section .cta-button {
display: inline-block;
padding: 18px 35px;
background: linear-gradient(45deg, var(--gold), var(--gold-light));
color: #000000;
text-decoration: none;
border-radius: 30px;
font-size: clamp(1rem, 1.8vw, 1.1rem);
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.5px;
transition: all 0.3s ease;
box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
margin-bottom: 25px;
}

.seventh-section .cta-button:hover {
transform: translateY(-2px);
box-shadow: 0 12px 35px rgba(255, 215, 0, 0.4);
}

.security-badge {
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
font-size: clamp(0.7rem, 1.2vw, 0.8rem);
color: var(--text-muted);
text-align: center;
line-height: 1.3;
}

.lock-icon {
color: var(--gold);
flex-shrink: 0;
}

.benefits-card {
background: linear-gradient(145deg, #1a1a1a, #0f0f0f);
border: 1px solid rgba(255, 255, 255, 0.05);
border-radius: 15px;
padding: 40px;
display: flex;
flex-direction: column;
transition: transform 0.3s ease, box-shadow 0.3s ease;
align-self: stretch;
}

.benefits-card:hover {
transform: translateY(-3px);
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.benefits-title {
font-size: clamp(1.2rem, 2.2vw, 1.4rem);
font-weight: 700;
color: var(--text-primary);
margin-bottom: 25px;
line-height: 1.3;
text-align: left;
}

.benefits-list {
list-style: none;
padding: 0;
margin: 0;
display: flex;
flex-direction: column;
gap: 15px;
flex-grow: 1;
}

.benefits-list li {
display: flex;
align-items: flex-start;
gap: 12px;
font-size: clamp(0.95rem, 1.8vw, 1rem);
line-height: 1.6;
color: var(--text-secondary);
text-align: left;
}

.benefits-list li::before {
content: "✓";
font-size: 14px;
font-weight: bold;
color: var(--gold);
background: rgba(255, 215, 0, 0.1);
border-radius: 50%;
width: 22px;
height: 22px;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
margin-top: 2px;
}

/* Eighth Section */
.eighth-section {
padding: 80px 0;
background: var(--bg-primary);
position: relative;
}

.eighth-section .section-content {
display: flex;
flex-direction: column;
gap: 60px;
}

.guarantee-section {
text-align: center;
padding: 40px 0;
}

.guarantee-content {
max-width: 600px;
margin: 0 auto;
}

.guarantee-icon {
width: 100px;
height: 100px;
background: var(--gold);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 30px auto;
color: #000;
}

.guarantee-title {
font-size: clamp(1.8rem, 4vw, 2.5rem);
font-weight: 700;
color: var(--gold);
margin-bottom: 25px;
letter-spacing: 1px;
}

.guarantee-text {
font-size: clamp(1.1rem, 2.2vw, 1.3rem);
color: var(--text-secondary);
line-height: 1.6;
}

.guarantee-text .highlight {
color: var(--gold);
font-weight: 600;
}

.faq-section {
max-width: 900px;
margin: 0 auto;
width: 100%;
}

.faq-title {
font-size: clamp(1.8rem, 4vw, 2.5rem);
font-weight: 700;
color: var(--text-primary);
margin-bottom: 40px;
text-align: center;
}

.faq-title .highlight {
color: var(--gold);
}

.faq-container {
display: flex;
flex-direction: column;
gap: 12px;
}

.faq-item {
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 12px;
overflow: hidden;
background: rgba(255, 255, 255, 0.02);
transition: all 0.3s ease;
}

.faq-item:hover {
border-color: rgba(255, 215, 0, 0.3);
}

.faq-question {
padding: 24px 28px;
cursor: pointer;
display: flex;
justify-content: space-between;
align-items: center;
font-size: clamp(1rem, 2vw, 1.1rem);
font-weight: 500;
color: var(--text-primary);
transition: all 0.3s ease;
user-select: none;
}

.faq-question:hover {
background: rgba(255, 255, 255, 0.05);
}

.faq-arrow {
color: var(--gold);
transition: transform 0.3s ease;
flex-shrink: 0;
margin-left: 20px;
}

.faq-item.active .faq-arrow {
transform: rotate(180deg);
}

.faq-answer {
padding: 0 28px;
max-height: 0;
overflow: hidden;
transition: all 0.4s ease;
font-size: clamp(0.95rem, 1.8vw, 1rem);
line-height: 1.7;
color: var(--text-secondary);
}

.faq-item.active .faq-answer {
padding: 0 28px 24px 28px;
max-height: 400px;
}

.faq-answer strong {
color: var(--gold);
}

/* Footer */
.footer-section {
padding: 60px 0 40px 0;
background: var(--bg-secondary);
text-align: center;
}

.footer-content {
display: flex;
flex-direction: column;
align-items: center;
gap: 30px;
}

.footer-logo-img {
width: 60px;
height: 60px;
object-fit: contain;
filter: brightness(0) saturate(100%) invert(81%) sepia(100%) saturate(320%) hue-rotate(0deg) brightness(107%) contrast(102%);
}

.footer-info {
display: flex;
flex-direction: column;
gap: 10px;
}

.footer-copyright {
font-size: 14px;
color: var(--text-muted);
margin: 0;
}

.footer-tagline {
font-size: 13px;
color: #666666;
margin: 0;
}

/* Animations */
.hero h1 {
animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
animation: fadeInUp 0.8s ease-out 0.2s both;
}

.vturb-player {
animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-button {
animation: fadeInUp 0.8s ease-out 0.6s both;
}

@keyframes fadeInUp {
from {
opacity: 0;
transform: translateY(20px);
}
to {
opacity: 1;
transform: translateY(0);
}
}

/* Responsive Design */
@media (max-width: 768px) {
.container {
padding: 0 15px;
}

.hero {
padding: 30px 0 35px;
}

.cta-button {
padding: 12px 28px;
font-size: 15px;
}

.header-content {
gap: 10px;
}

.second-section, .third-section, .fourth-section, .sixth-section, .seventh-section {
padding: 50px 0;
}

.section-title {
margin-bottom: 40px;
}

.sixth-section .benefits-grid {
grid-template-columns: 1fr;
gap: 20px;
}

.third-section .benefits-grid,
.comparison-grid {
grid-template-columns: 1fr;
gap: 25px;
}

.investment-grid {
grid-template-columns: 1fr;
gap: 30px;
align-items: stretch;
}

.benefit-card, .comparison-card, .benefit-item, .price-card, .benefits-card {
padding: 25px;
}

.eighth-section {
padding: 60px 0;
}

.eighth-section .section-content {
gap: 50px;
}

.guarantee-section {
padding: 30px 0;
}

.guarantee-icon {
width: 80px;
height: 80px;
margin-bottom: 25px;
}

.faq-title {
margin-bottom: 30px;
}

.faq-question {
padding: 20px 24px;
margin-left: 15px;
}

.faq-item.active .faq-answer {
padding: 0 24px 20px 24px;
}

.footer-section {
padding: 50px 0 30px 0;
}

.footer-logo-img {
width: 50px;
height: 50px;
}
}

@media (max-width: 480px) {
.hero h1 {
font-size: 1.5rem;
}

.hero-subtitle {
font-size: 0.85rem;
}

.second-section, .third-section, .fourth-section, .sixth-section, .seventh-section {
padding: 40px 0;
}

.benefit-card, .comparison-card, .benefit-item, .price-card, .benefits-card {
padding: 20px;
}

.icon-img {
width: 40px;
height: 40px;
}

.eighth-section {
padding: 50px 0;
}

.eighth-section .section-content {
gap: 40px;
}

.guarantee-icon {
width: 70px;
height: 70px;
margin-bottom: 20px;
}

.faq-question {
padding: 18px 20px;
margin-left: 12px;
}

.faq-item.active .faq-answer {
padding: 0 20px 18px 20px;
max-height: 300px;
}

.footer-section {
padding: 40px 0 25px 0;
}

.footer-logo-img {
width: 45px;
height: 45px;
}
}