:root {
    --primary-orange: #ff5c38;
    --primary-gradient: linear-gradient(to right, #ff7e5f, #ff3f34);
    --bg-dark: #1a1a1a;
    --text-white: #ffffff;
    --text-gray: #rgba(255, 255, 255, 0.6);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: #111;
    color: white;
    overflow-x: hidden;
    min-height: 100vh;
}

.landing-container {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.bg-poster-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.9)),
        url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1MCIgaGVpZ2h0PSI1MCI+CjxyZWN0IHdpZHRoPSI1MCIgaGVpZ2h0PSI1MCIgZmlsbD0iIzMzMyIgb3BhY2l0eT0iMC4xIi8+Cjwvc3ZnPg==');
    background-size: cover;
    z-index: 0;
}

.bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(20,20,20,0.9) 0%, rgba(40,20,20,0.8) 50%, rgba(20,20,20,1) 100%);
    z-index: 1;
    pointer-events: none;
}

.top-bar {
    position: relative;
    z-index: 10;
    width: 100%;
    padding: 20px;
    display: flex;
    align-items: center;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-icon-small {
    width: 32px;
    height: 32px;
    background: white;
    border-radius: 8px;
    color: var(--primary-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

.app-name {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
}

.hero-content {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 600px;
    padding-top: 20px;
}

.text-group {
    text-align: center;
    margin-bottom: 30px;
}

.sub-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 5px;
    letter-spacing: 2px;
}

.main-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-orange);
    margin-bottom: 15px;
    letter-spacing: 4px;
    text-shadow: 0 4px 10px rgba(255, 92, 56, 0.3);
    background: linear-gradient(to bottom, #ff8f75, #ff3f34);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.slogan {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 4px;
    text-transform: uppercase;
    font-weight: 300;
}

.phone-showcase {
    position: relative;
    width: 300px;
    height: 360px;
    margin-bottom: 40px;
}

.phone-mockup {
    position: absolute;
    width: 160px;
    height: 320px;
    background: #000;
    border-radius: 24px;
    border: 4px solid #333;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    overflow: hidden;
}

.phone-left {
    left: 0;
    top: 20px;
    transform: rotate(-8deg) scale(0.95);
    z-index: 5;
    border-color: #444;
}

.phone-right {
    right: 0;
    top: 0;
    transform: rotate(5deg);
    z-index: 6;
    border-color: #ffccaa;
}

.screen-content {
    width: 100%;
    height: 100%;
    position: relative;
}

.video-screen {
    background: linear-gradient(45deg, #222, #444);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.video-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2Zy4uLj4=');
    opacity: 0.5;
}

.play-btn {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(4px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: white;
}

.video-info {
    position: absolute;
    bottom: 20px;
    left: 15px;
}

.v-line {
    height: 6px;
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
    margin-bottom: 6px;
}
.v-long { width: 80px; }
.v-short { width: 50px; }

.coin-screen {
    background: linear-gradient(160deg, #fff5e6 0%, #ffecd2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 40px;
}

.coin-circle {
    width: 60px;
    height: 60px;
    background: linear-gradient(to bottom, #ffd700, #ffaa00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: #b35900;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(255, 170, 0, 0.4);
    margin-bottom: 20px;
    border: 2px solid #fff;
}

.coin-btn {
    padding: 8px 16px;
    background: #ff5c38;
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.floating-coin {
    position: absolute;
    background: radial-gradient(circle at 30% 30%, #ffd700, #ffaa00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b35900;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 20;
    animation: float 3s ease-in-out infinite;
    border: 1px solid #fff;
}

.c1 {
    width: 40px;
    height: 40px;
    right: -10px;
    top: 100px;
    font-size: 20px;
    animation-delay: 0s;
}

.c2 {
    width: 24px;
    height: 24px;
    left: -5px;
    bottom: 80px;
    font-size: 12px;
    animation-delay: 1.5s;
}

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

.action-area {
    width: 100%;
    padding: 0 30px;
    margin-top: auto;
    margin-bottom: 40px;
}

.download-btn-large {
    display: block;
    width: 100%;
    height: 56px;
    line-height: 56px;
    text-align: center;
    background: var(--primary-gradient);
    color: white;
    font-size: 20px;
    font-weight: 600;
    border-radius: 28px;
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(255, 63, 52, 0.4);
    transition: transform 0.1s;
}

.download-btn-large:active {
    transform: scale(0.98);
}

.legal-footer {
    position: relative;
    z-index: 10;
    width: 100%;
    padding: 20px;
    background: #111;
    text-align: center;
}

.legal-footer p {
    font-size: 10px;
    color: #555;
    line-height: 1.6;
    transform: scale(0.9);
}

@media (min-width: 768px) {
    .bg-poster-layer {
        opacity: 0.6;
    }
    .hero-content {
        transform: scale(1.2);
        transform-origin: top center;
        margin-top: 40px;
    }
    .legal-footer {
        padding-bottom: 40px;
    }
}