/* DNF Helper Theme - Main Styles */

:root {
    --primary-color: #FF6B6B;
    --secondary-color: #4ECDC4;
    --accent-color: #45B7D1;
    --dark-color: #2C3E50;
    --light-color: #ECF0F1;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-hero: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 50%, #0a0a0a 100%);
    --gradient-hero-alt: linear-gradient(135deg, #1a0f1f 0%, #2a1a2e 50%, #16101b 100%);
    --gradient-hero-dark: linear-gradient(135deg, #0a0a0a 0%, #1f1f1f 50%, #0f0f0f 100%);
}

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

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a0a;
    color: #fff;
    overflow-x: hidden;
    position: relative;
}

/* Safety Banner styles moved to header.php inline styles */

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader {
    width: 150px;
    height: 150px;
    position: relative;
}

.loader-inner {
    width: 100%;
    height: 100%;
    position: relative;
}

.loader-line-wrap {
    animation: spin 2000ms cubic-bezier(.175, .885, .32, 1.275) infinite;
    box-sizing: border-box;
    height: 50px;
    left: 0;
    overflow: hidden;
    position: absolute;
    top: 0;
    transform-origin: 50% 100%;
    width: 150px;
}

.loader-line {
    border: 4px solid transparent;
    border-radius: 100%;
    box-sizing: border-box;
    height: 100px;
    left: 0;
    margin: 0 auto;
    position: absolute;
    right: 0;
    top: 0;
    width: 100px;
}

.loader-line-wrap:nth-child(1) { animation-delay: -50ms; }
.loader-line-wrap:nth-child(2) { animation-delay: -100ms; }
.loader-line-wrap:nth-child(3) { animation-delay: -150ms; }
.loader-line-wrap:nth-child(4) { animation-delay: -200ms; }
.loader-line-wrap:nth-child(5) { animation-delay: -250ms; }

.loader-line-wrap:nth-child(1) .loader-line { border-color: hsl(0, 80%, 60%); height: 90px; width: 90px; top: 7px; }
.loader-line-wrap:nth-child(2) .loader-line { border-color: hsl(60, 80%, 60%); height: 76px; width: 76px; top: 14px; }
.loader-line-wrap:nth-child(3) .loader-line { border-color: hsl(120, 80%, 60%); height: 62px; width: 62px; top: 21px; }
.loader-line-wrap:nth-child(4) .loader-line { border-color: hsl(180, 80%, 60%); height: 48px; width: 48px; top: 28px; }
.loader-line-wrap:nth-child(5) .loader-line { border-color: hsl(240, 80%, 60%); height: 34px; width: 34px; top: 35px; }

@keyframes spin {
    0%, 15% { transform: rotate(0); }
    100% { transform: rotate(360deg); }
}

/* Navigation */
.navbar {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
    z-index: 9999;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    border-bottom: 2px solid var(--primary-color);
    box-shadow: 0 5px 20px rgba(255, 107, 107, 0.3);
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    position: relative;
}

.brand-text {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255, 107, 107, 0.5);
}

.navbar-nav .nav-link {
    color: #fff !important;
    margin: 0 15px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-2);
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

.btn-qq-nav {
    background: var(--gradient-2);
    color: #fff !important;
    padding: 8px 20px !important;
    border-radius: 25px;
    margin-left: 20px !important;
}

.btn-qq-nav:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}

/* Dark Style - 深黑色调（默认，与整体一致） */
.hero-style-dark {
    background: linear-gradient(135deg, #0a0a0a 0%, #151515 50%, #0f0f0f 100%);
}

.hero-style-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 107, 107, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(78, 205, 196, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(69, 183, 209, 0.05) 0%, transparent 50%);
    z-index: 0;
    animation: gradientShift 20s ease infinite;
}

/* Purple Style - 紫色神秘风格 */
.hero-style-purple {
    background: linear-gradient(135deg, #1a0f1f 0%, #2a1a2e 50%, #16101b 100%);
}

.hero-style-purple::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(147, 51, 234, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    z-index: 0;
    animation: gradientShift 15s ease infinite;
}

/* Gradient Style - 红蓝渐变风格 */
.hero-style-gradient {
    background: linear-gradient(135deg, #1a0a0f 0%, #0f1a2a 50%, #1f0a1a 100%);
}

.hero-style-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top left, rgba(255, 107, 107, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom right, rgba(69, 183, 209, 0.15) 0%, transparent 50%);
    z-index: 0;
    animation: gradientRotate 25s linear infinite;
}

/* Gaming Style - 游戏电竞风格 */
.hero-style-gaming {
    background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 25%, #0f0f0f 50%, #1a1a1a 75%, #0d0d0d 100%);
}

.hero-style-gaming::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(255, 0, 150, 0.05) 50%, transparent 70%),
        linear-gradient(-45deg, transparent 30%, rgba(0, 255, 255, 0.05) 50%, transparent 70%);
    z-index: 0;
    animation: gamingPulse 10s ease infinite;
}

.hero-style-gaming::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 107, 0.03), transparent);
    z-index: 0;
    animation: scanline 8s linear infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

@keyframes gradientRotate {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

@keyframes gamingPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

@keyframes scanline {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Section Particles Background */
.section-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.5;
    pointer-events: none;
}

/* Ensure content is above particles */
section .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 50px 0;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Glitch Effect */
.glitch {
    position: relative;
    color: #fff;
    animation: glitch-skew 1s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    animation: glitch-1 0.2s infinite;
    color: #FF6B6B;
    z-index: -1;
}

.glitch::after {
    animation: glitch-2 0.2s infinite;
    color: #4ECDC4;
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 100% { clip-path: inset(0 0 0 0); }
    20% { clip-path: inset(20% 0 30% 0); }
    40% { clip-path: inset(50% 0 20% 0); }
    60% { clip-path: inset(10% 0 60% 0); }
    80% { clip-path: inset(80% 0 5% 0); }
}

@keyframes glitch-2 {
    0%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
    20% { clip-path: inset(30% 0 20% 0); transform: translate(-2px, 2px); }
    40% { clip-path: inset(20% 0 50% 0); transform: translate(2px, -2px); }
    60% { clip-path: inset(60% 0 10% 0); transform: translate(-2px, -2px); }
    80% { clip-path: inset(5% 0 80% 0); transform: translate(2px, 2px); }
}

@keyframes glitch-skew {
    0%, 100% { transform: skew(0deg); }
    20% { transform: skew(1deg); }
    40% { transform: skew(-1deg); }
    60% { transform: skew(0.5deg); }
    80% { transform: skew(-0.5deg); }
}

.version-badge {
    display: inline-block;
    background: var(--gradient-2);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-left: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-description {
    font-size: 1.4rem;
    margin: 20px 0;
    opacity: 0;
    animation: fadeIn 1s forwards;
    animation-delay: 0.5s;
}

.hero-slogan {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 20px 0;
    font-weight: bold;
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.5);
}

.typing-effect {
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--primary-color);
    animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--primary-color); }
}

.hero-info {
    font-size: 1.1rem;
    margin: 30px 0;
    line-height: 1.8;
    opacity: 0.9;
}

.hero-buttons {
    margin-top: 40px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    margin: 10px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-2);
    color: #fff;
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid var(--primary-color);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.2);
}

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.6);
}

.btn-glow {
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4); }
    to { box-shadow: 0 10px 30px rgba(255, 107, 107, 0.8); }
}

/* Carousel */
.hero-carousel {
    position: relative;
    padding: 20px;
}

.feature-swiper {
    width: 100%;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.carousel-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--primary-color);
}

.swiper-pagination-bullet-active {
    background: var(--primary-color);
}

/* Hero Wave */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 100px;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.gradient-text {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    margin-top: 50px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.feature-card {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1) 0%, rgba(78, 205, 196, 0.1) 100%);
    border: 1px solid rgba(255, 107, 107, 0.3);
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #fff;
    font-weight: 600;
}

.feature-card p {
    color: #999;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Usage Section */
.usage-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.usage-steps {
    max-width: 800px;
    margin: 50px auto;
}

.step-item {
    display: flex;
    align-items: center;
    margin-bottom: 50px;
    position: relative;
}

.step-item:nth-child(even) {
    flex-direction: row-reverse;
}

.step-number {
    font-size: 4rem;
    font-weight: bold;
    color: var(--primary-color);
    opacity: 0.3;
    margin: 0 30px;
    min-width: 120px;
    text-align: center;
}

.step-content {
    flex: 1;
    background: rgba(255, 107, 107, 0.1);
    border-left: 3px solid var(--primary-color);
    padding: 30px;
    border-radius: 10px;
}

.step-item:nth-child(even) .step-content {
    border-left: none;
    border-right: 3px solid var(--secondary-color);
    background: rgba(78, 205, 196, 0.1);
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

.step-content p {
    color: #999;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.faq-accordion {
    max-width: 800px;
    margin: 50px auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 107, 0.2);
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(255, 107, 107, 0.2);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(255, 107, 107, 0.1);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.2rem;
    color: #fff;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

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

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: #999;
    line-height: 1.8;
}

/* Pricing Section */
.pricing-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    position: relative;
    overflow: hidden;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 107, 107, 0.2);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.3);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--gradient-2);
    color: #fff;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #fff;
}

.pricing-price {
    margin: 20px 0;
}

.currency {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.amount {
    font-size: 3rem;
    font-weight: bold;
    color: #fff;
}

.pricing-duration {
    color: #999;
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    flex-grow: 1;
}

.pricing-features li {
    padding: 10px 0;
    color: #999;
    position: relative;
    padding-left: 30px;
    text-align: left;
}

.pricing-features li i {
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.btn-pricing {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 40px;
    border-radius: 25px;
    font-weight: bold;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
    margin-top: auto;
}

.btn-pricing:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

/* Articles Section */
.articles-section {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.article-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 107, 107, 0.2);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.2);
    border-color: var(--primary-color);
}

.article-meta {
    padding: 20px 20px 10px;
    display: flex;
    gap: 20px;
    color: #999;
    font-size: 0.9rem;
}

.article-title {
    padding: 0 20px;
    margin-bottom: 15px;
}

.article-title a {
    color: #fff;
    text-decoration: none;
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

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

.article-excerpt {
    padding: 0 20px 20px;
    color: #999;
    line-height: 1.6;
}

.article-link {
    display: inline-block;
    padding: 10px 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    margin: 0 20px 20px;
}

.article-link:hover {
    transform: translateX(5px);
}

/* Pagination */
.pagination-wrap {
    text-align: center;
    margin-top: 50px;
}

.pagination-wrap a,
.pagination-wrap span {
    display: inline-block;
    padding: 10px 15px;
    margin: 0 5px;
    background: rgba(255, 255, 255, 0.05);
    color: #999;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.pagination-wrap a:hover,
.pagination-wrap .active {
    background: var(--primary-color);
    color: #fff;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-desc {
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 40px;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-qq,
.btn-service {
    background: var(--gradient-2);
    color: #fff;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-qq:hover,
.btn-service:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
}

/* Footer */
.footer {
    background: #0a0a0a;
    padding: 50px 0 20px;
    border-top: 1px solid rgba(255, 107, 107, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    color: #999;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    display: inline-flex;
    width: 40px;
    height: 40px;
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
}

.footer-links h4,
.footer-contact h4 {
    color: #fff;
    margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    padding: 0;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 10px;
}

.footer-links a,
.footer-contact a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #666;
}

.footer-bottom a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-2);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 1s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-slogan {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .step-item,
    .step-item:nth-child(even) {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 20px 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}