* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary: #c45c26;
    --secondary: #f9d77e;
    --accent: #ff6b6b;
    --dark: #1a0f2e;
    --light: #fff8f0;
    --gold: #ffd700;
}
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--dark);
    color: var(--light);
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    height: 72px;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}
.navbar.scrolled {
    background: rgba(26, 15, 46, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(249, 215, 126, 0.15);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--secondary);
    text-shadow: 0 2px 8px rgba(196, 92, 38, 0.5);
}
.logo img { width: 42px; height: 42px; border-radius: 10px; }
.nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
}
.nav-links a {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(255,255,255,0.85);
    transition: color 0.3s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--secondary); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
    display: flex;
    align-items: center;
    gap: 14px;
}
.btn {
    padding: 10px 22px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #e87e3a);
    color: #fff;
    box-shadow: 0 4px 16px rgba(196, 92, 38, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(196, 92, 38, 0.55);
}
.btn-gold {
    background: linear-gradient(135deg, var(--secondary), var(--gold));
    color: var(--dark);
    box-shadow: 0 4px 16px rgba(249, 215, 126, 0.35);
}
.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(249, 215, 126, 0.5);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.menu-toggle span {
    width: 26px; height: 3px;
    background: var(--secondary);
    border-radius: 2px;
    transition: all 0.3s;
}
.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile menu */
.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 5, 18, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1100;
}
.menu-overlay.open {
    opacity: 1;
    visibility: visible;
}
.mobile-menu {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 82vw);
    height: 100vh;
    background: linear-gradient(180deg, #24153d 0%, #1a0f2e 100%);
    box-shadow: -12px 0 40px rgba(0,0,0,0.5);
    border-left: 1px solid rgba(249, 215, 126, 0.15);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 1200;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.mobile-menu.open {
    transform: translateX(0);
}
.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid rgba(249, 215, 126, 0.12);
}
.mobile-menu-header .logo { font-size: 1.1rem; }
.mobile-menu-header .logo img { width: 36px; height: 36px; }
.menu-close {
    width: 38px; height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(249, 215, 126, 0.2);
    color: var(--secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}
.menu-close:hover { background: var(--primary); color: #fff; }
.mobile-nav-links {
    list-style: none;
    flex: 1;
    padding: 16px 0;
}
.mobile-nav-links li { border-bottom: 1px solid rgba(255,255,255,0.05); }
.mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 24px;
    color: rgba(255,255,255,0.85);
    font-size: 1.05rem;
    font-weight: 600;
    transition: all 0.3s;
}
.mobile-nav-links a::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    flex-shrink: 0;
    opacity: 0.6;
    transition: all 0.3s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a:active {
    color: var(--secondary);
    padding-left: 30px;
    background: rgba(255,255,255,0.04);
}
.mobile-nav-links a:hover::before,
.mobile-nav-links a:active::before { opacity: 1; }
.mobile-menu-footer {
    padding: 20px;
    text-align: center;
    border-top: 1px solid rgba(249, 215, 126, 0.12);
}
.mobile-menu-footer .btn {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 12px;
}
.mobile-menu-footer p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.45);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 5% 80px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: url('../images/icon/icon421b889aa79a65305c25c9032e00f43a1762157252.gif') center/cover no-repeat;
    z-index: -2;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(26,15,46,0.55) 0%, rgba(26,15,46,0.2) 40%, rgba(26,15,46,0.85) 100%);
    z-index: -1;
}
.hero-content { max-width: 880px; animation: fadeInUp 1s ease; }
.hero-badge {
    display: inline-block;
    padding: 8px 22px;
    background: rgba(196, 92, 38, 0.25);
    border: 1px solid rgba(249, 215, 126, 0.4);
    border-radius: 30px;
    color: var(--secondary);
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 24px;
    backdrop-filter: blur(6px);
}
.hero h1 {
    font-size: clamp(2.6rem, 7vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 18px;
    text-shadow: 0 4px 24px rgba(0,0,0,0.45);
}
.hero h1 span {
    background: linear-gradient(90deg, #ffecd2, #fcb69f, #ff9a9e, #fecfef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: rgba(255,255,255,0.92);
    margin-bottom: 36px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.35);
}
.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    flex-wrap: nowrap;
    margin-bottom: 40px;
}
.hero-cta .btn { padding: 14px 36px; font-size: 1.05rem; white-space: nowrap; }

/* QR code popup (hero) */
.qr-wrapper { position: relative; flex-shrink: 0; }
.qr-popup {
    position: absolute;
    top: calc(100% + 16px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: #fff;
    border-radius: 14px;
    padding: 14px;
    box-shadow: 0 16px 40px rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 60;
}
.qr-wrapper:hover .qr-popup,
.qr-wrapper:focus-within .qr-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.qr-popup-arrow {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 16px; height: 16px;
    background: #fff;
    border-radius: 3px;
}
.qr-popup .qr-canvas { display: flex; justify-content: center; width: 140px;}
.qr-popup .qr-canvas img,
.qr-popup .qr-canvas canvas {
    display: block;
    width: 128px;
    height: 128px;
    border-radius: 6px;
}
.qr-popup p {
    margin-top: 10px;
    font-size: 0.8rem;
    color: #555;
    text-align: center;
    white-space: nowrap;
}
@media (hover: none) {
    .qr-popup { display: none; }
}
.scroll-hint {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

/* Sections */
section { padding: 90px 5%; }
.section-title {
    text-align: center;
    margin-bottom: 56px;
}
.section-title h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--secondary);
}
.section-title p {
    color: rgba(255,255,255,0.6);
    font-size: 1rem;
}
.section-title .line {
    width: 60px; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 16px auto 0;
    border-radius: 2px;
}

/* Intro */
.intro {
    background: linear-gradient(180deg, var(--dark) 0%, #24153d 100%);
}
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}
.intro-text p {
    font-size: 1.08rem;
    line-height: 1.9;
    color: rgba(255,255,255,0.82);
    margin-bottom: 24px;
}
.intro-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}
.stat-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(249, 215, 126, 0.12);
    border-radius: 16px;
    padding: 22px 12px;
    text-align: center;
    transition: transform 0.3s;
}
.stat-card:hover { transform: translateY(-6px); }
.stat-card .num { font-size: 1.8rem; font-weight: 800; color: var(--secondary); }
.stat-card .txt { font-size: 0.85rem; color: rgba(255,255,255,0.65); margin-top: 6px; }
.intro-image {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}
.intro-image img { width: 100%; border-radius: 24px; }
.intro-image::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    z-index: -1;
    border-radius: 26px;
}

/* Features */
.features { background: #150c25; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.feature-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 9/16;
    cursor: pointer;
    transition: transform 0.4s, box-shadow 0.4s;
    box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}
.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 24px 50px rgba(196, 92, 38, 0.25);
}
.feature-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.feature-card:hover img { transform: scale(1.08); }
.feature-card .info {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 60px 20px 24px;
    background: linear-gradient(to top, rgba(26,15,46,0.95), transparent);
}
.feature-card h3 {
    font-size: 1.2rem;
    color: var(--secondary);
    margin-bottom: 6px;
}
.feature-card p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.5;
}

/* Benefits */
.benefits {
    background: linear-gradient(180deg, #24153d 0%, var(--dark) 100%);
}
.benefit-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}
.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(249, 215, 126, 0.1);
    border-radius: 18px;
    padding: 26px;
    transition: all 0.3s;
}
.benefit-item:hover {
    background: rgba(255,255,255,0.09);
    transform: translateY(-4px);
    border-color: rgba(249, 215, 126, 0.25);
}
.benefit-icon {
    width: 50px; height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 14px;
    font-size: 1.4rem;
}
.benefit-item h4 { font-size: 1.15rem; color: #fff; margin-bottom: 8px; }
.benefit-item p { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.6; }

/* Screenshots */
.screenshots { background: #0f081c; }
.screenshot-slider {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}
.screenshot-track {
    display: flex;
    transition: transform 0.5s ease;
}
.screenshot-track img {
    min-width: 100%;
    max-height: 620px;
    object-fit: cover;
}
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px; height: 50px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(249, 215, 126, 0.3);
    color: var(--secondary);
    font-size: 1.4rem;
    cursor: pointer;
    backdrop-filter: blur(6px);
    transition: all 0.3s;
    z-index: 10;
}
.slider-btn:hover { background: rgba(196, 92, 38, 0.6); color: #fff; }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 22px;
}
.slider-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    cursor: pointer;
    transition: all 0.3s;
}
.slider-dot.active { background: var(--secondary); transform: scale(1.3); }

/* Footer CTA */
.footer-cta {
    position: relative;
    padding: 100px 5%;
    text-align: center;
    background: url('../images/banner/bannereb5328fa3526b34f065a004a8bba130c1761877265.jpg') center/cover no-repeat fixed;
}
.footer-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(26,15,46,0.88);
}
.footer-cta .content { position: relative; z-index: 1; }
.footer-cta h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--secondary);
}
.footer-cta p { font-size: 1.15rem; color: rgba(255,255,255,0.75); margin-bottom: 32px; }
.footer-cta .btn { padding: 16px 44px; font-size: 1.15rem; }
.download-btns {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
}
.download-btns .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 180px;
    justify-content: center;
}
.download-btns .btn::before {
    content: '📱';
    font-size: 1.1rem;
}
.download-btns .btn:nth-child(2)::before {
    content: '🍎';
}
.download-qr-area { margin-top: 28px; }
.download-qr {
    display: inline-block;
    padding: 12px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.35);
}
.download-qr img,
.download-qr canvas {
    display: block;
    width: 150px;
    height: 150px;
    border-radius: 6px;
}
.download-qr-area p {
    margin-top: 12px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.75);
}

/* Footer */
footer {
    background: #0a0512;
    padding: 40px 5%;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.06);
}
footer p { color: rgba(255,255,255,0.45); font-size: 0.85rem; }

/* Friend links */
.friend-links {
    max-width: 900px;
    margin: 0 auto 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.friend-links-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 14px;
}
.friend-links-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
    justify-content: center;
}
.friend-links-list a {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    transition: all 0.3s;
    position: relative;
}
.friend-links-list a:hover {
    color: var(--secondary);
}
.friend-links-list a::before {
    content: '·';
    margin-right: 8px;
    color: rgba(249, 215, 126, 0.4);
}
.friend-links-list a:first-child::before {
    content: '';
    margin-right: 0;
}
footer .social {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-bottom: 20px;
}
footer .social a {
    width: 42px; height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--secondary);
    transition: all 0.3s;
}
footer .social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

/* Back to top */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #e87e3a);
    color: #fff;
    font-size: 1.4rem;
    border: 1px solid rgba(249, 215, 126, 0.3);
    box-shadow: 0 6px 20px rgba(196, 92, 38, 0.4);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 900;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(196, 92, 38, 0.55);
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Responsive */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-cta .btn-gold { display: none; }
    .menu-toggle { display: flex; }
    .intro-grid { grid-template-columns: 1fr; }
    .intro-image { order: -1; max-width: 480px; margin: 0 auto; }
    section { padding: 70px 5%; }
}
@media (max-width: 600px) {
    .navbar { height: 64px; padding: 0 4%; }
    .hero { padding: 100px 4% 60px; }
    .hero-cta { gap: 12px; }
    .hero-cta .btn { padding: 12px 20px; font-size: 0.95rem; }
    .intro-stats { grid-template-columns: 1fr; }
    .benefit-item { flex-direction: column; text-align: center; align-items: center; }
    .slider-btn { width: 40px; height: 40px; font-size: 1.1rem; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}