:root {
    --primary-blue: #1a6bb3;
    --secondary-blue: #2d8de3;
    --light-blue: #e6f2ff;
    --ice-blue: #a8d8ff;
    --snow-white: #f8fcff;
    --dark-blue: #0d4a8a;
    --text-dark: #2c3e50;
    --text-light: #5d7a9c;
    --accent-cyan: #00c9ff;
    --accent-purple: #8a2be2;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

html {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

html::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

body {
    background: linear-gradient(135deg, var(--snow-white) 0%, var(--light-blue) 100%);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.navbar {
    background: rgba(255, 255, 255, 0.5) url('img/topbg.png') center center / cover no-repeat;
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--ice-blue);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 20px rgba(26, 107, 179, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 2.2rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 1);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.logo-icon {
    font-size: 2.2rem;
    animation: pulse 2s infinite;
	display: inline-flex;
	align-items: center;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 1);
    font-weight: 600;
    font-size: 1.8rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    background: var(--light-blue);
    color: rgba(255, 217, 116, 1);
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--accent-cyan);
    transition: width 0.3s ease;
    border-radius: 3px;
}

.nav-links a:hover::after {
    width: 70%;
}

.cta-button {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(26, 107, 179, 0.3);
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(26, 107, 179, 0.4);
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
}

.hero {
    min-height: 100vh;
    background: url('img/bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.3;
    animation: snowFall 20s linear infinite;
}

@keyframes snowFall {
    0% { transform: translateY(-100px) rotate(0deg); }
    100% { transform: translateY(100vh) rotate(360deg); }
}

.hero-content {
    max-width: 1200px;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-175px) scale(1.3);
}

.hero-play-btn {
    position: absolute;
    top: calc(50% - 135px);
    left: calc(50% - 12px);
    transform: translate(-50%, -50%) scale(1.3);
    z-index: 3;
    cursor: pointer;
    transition: transform 0.3s ease;
    background: none;
    border: none;
    padding: 0;
}

.hero-play-btn:hover {
    transform: translate(-50%, -50%) scale(1.4);
}

.hero-play-btn img {
    max-width: 100px;
    width: auto;
    height: auto;
}

.hero-qrcode {
    position: absolute;
    bottom: 35px;
    left: 50px;
    z-index: 3;
}

.hero-qrcode img {
    max-width: 120px;
    width: auto;
    height: auto;
}

.hero-kf-btn {
    position: absolute;
    top: 500px;
    right: 20px;
    transform: translateY(-50%);
    z-index: 3;
    cursor: pointer;
    transition: transform 0.3s ease;
    background: none;
    border: none;
    padding: 0;
}

.hero-kf-btn:hover {
    transform: translateY(-50%) scale(1.1);
}

.hero-kf-btn img {
    max-width: 80px;
    width: auto;
    height: auto;
}

.hero-ljyy-btn {
    position: absolute;
    bottom: 55px;
    left: 50%;
    transform: translateX(-50%) scale(1.3);
    z-index: 3;
    cursor: pointer;
    transition: transform 0.3s ease;
    background: none;
    border: none;
    padding: 0;
}

.hero-ljyy-btn:hover {
    transform: translateX(-50%) scale(1.4);
}

.hero-ljyy-btn img {
    max-width: 260px;
    width: auto;
    height: auto;
}

.hero-download-btns {
    position: absolute;
    bottom: 45px;
    right: 35px;
    z-index: 3;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.hero-download-btns button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: transform 0.3s ease;
    transform: scale(1.3);
}

.hero-download-btns button:nth-child(1),
.hero-download-btns button:nth-child(3) {
    transform: translateX(-20px) scale(1.3);
}

.hero-download-btns button:hover {
    transform: scale(1.4);
}

.hero-download-btns button:nth-child(1):hover,
.hero-download-btns button:nth-child(3):hover {
    transform: translateX(-20px) scale(1.4);
}

.hero-download-btns img {
    max-width: 100px;
    width: auto;
    height: auto;
}

.yuyue-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10001;
    align-items: center;
    justify-content: center;
}

.yuyue-modal.active {
    display: flex;
}

.yuyue-container {
    position: relative;
    width: 90%;
    max-width: 400px;
    background: linear-gradient(180deg, #a8e4ff 0%, #d4f1ff 50%, #ffffff 100%);
    border-radius: 20px;
    padding: 40px 30px 30px;
    box-shadow: 0 20px 60px rgba(26, 107, 179, 0.3);
    border: 2px solid rgba(168, 216, 255, 0.8);
}

.yuyue-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    color: #1a6bb3;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.yuyue-close-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.1);
}

.yuyue-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 2px 2px 10px rgba(26, 107, 179, 0.5), 0 0 30px rgba(168, 216, 255, 0.8);
    margin-bottom: 25px;
    letter-spacing: 4px;
}

.yuyue-form-group {
    margin-bottom: 18px;
}

.yuyue-input-row {
    display: flex;
    gap: 10px;
    align-items: center;
    background: rgba(26, 107, 179, 0.7);
    border-radius: 12px;
    padding: 12px 16px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.yuyue-input-row:focus-within {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 201, 255, 0.3);
}

.yuyue-prefix {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
}

.yuyue-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-size: 1rem;
}

.yuyue-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.yuyue-code-btn {
    background: linear-gradient(135deg, #00c9ff, #2d8de3);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.yuyue-code-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 201, 255, 0.4);
}

.yuyue-platform-row {
    display: flex;
    gap: 15px;
    margin-bottom: 18px;
}

.yuyue-platform-btn {
    flex: 1;
    padding: 14px;
    border: 2px solid #1a6bb3;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.3);
    color: #1a6bb3;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.yuyue-platform-btn:hover,
.yuyue-platform-btn.active {
    background: linear-gradient(135deg, #00c9ff, #2d8de3);
    color: white;
    border-color: transparent;
}

.yuyue-agreement {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: #1a6bb3;
    line-height: 1.5;
}

.yuyue-agreement input[type="checkbox"] {
    margin-top: 3px;
    width: 16px;
    height: 16px;
    accent-color: #1a6bb3;
    cursor: pointer;
}

.yuyue-agreement a {
    color: #00c9ff;
    text-decoration: none;
}

.yuyue-agreement a:hover {
    text-decoration: underline;
}

.yuyue-submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #00c9ff, #2d8de3);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(0, 201, 255, 0.4);
    letter-spacing: 2px;
}

.yuyue-submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 201, 255, 0.5);
}

.hero-title-img {
    max-width: 95%;
    width: auto;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, white, var(--ice-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--ice-blue);
    margin-bottom: 2.5rem;
    font-weight: 300;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 1.2rem;
    color: white;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    opacity: 0.9;
}

.features {
    padding: 0;
    background: url('img/bg2.jpg') center center / cover no-repeat;
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
}

.features-hero-decoration {
    position: absolute;
    right: 0;
    bottom: 0;
    max-width: 100%;
    height: auto;
    z-index: 0;
    pointer-events: none;
    transform: scale(0.8);
    transform-origin: right bottom;
}

.features-social {
    position: absolute;
    left: 50px;
    bottom: 50px;
    display: flex;
    align-items: center;
    gap: 2px;
    z-index: 10;
}

.features-social-text {
    font-family: 'Source Han Sans Regular', 'Noto Sans SC', '思源黑体 Regular', sans-serif;
    font-size: 30px;
    color: #ffffff;
    text-shadow: 1px 1px 1px #000000;
}

.features-social-icon {
    width: auto;
    height: auto;
    max-width: 50px;
    max-height: 50px;
    cursor: pointer;
    transition: transform 0.3s ease;
    margin-left: 10px;
}

.features-social-icon:hover {
    transform: scale(1.1);
}

.social-icon-wrapper {
    position: relative;
    display: inline-block;
}

.social-qr-popup {
    display: none;
    position: absolute;
    bottom: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.social-qr-popup.active {
    display: block;
}

.social-qr-img {
    width: 120px;
    height: 120px;
    display: block;
    border-radius: 8px;
}

.features-showcase {
    position: absolute;
    left: -40px;
    top: 377px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 5%;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    z-index: 1;
}

.features-title-img {
    position: absolute;
    left: 150px;
    top: 110px;
    max-width: 100%;
    height: auto;
    z-index: 10;
    transform: scale(0.7);
    transform-origin: top left;
}

.features-subtitle-img {
    position: absolute;
    left: 205px;
    top: 280px;
    max-width: 100%;
    height: auto;
    z-index: 10;
}

.features-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
    letter-spacing: 8px;
}

.features-subtitle {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: 4px;
}

.features-description {
    font-size: 42px;
    font-family: 'Source Han Sans Bold', 'Noto Sans SC Bold', '思源黑体 Bold', sans-serif;
    font-weight: 700;
    line-height: 1.8;
    opacity: 0.95;
    max-width: 500px;
    text-shadow: 8px 8px 8px rgba(0, 0, 0, 0.8);
}

.video-showcase {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    position: relative;
}

.video-arrow {
    border: 0 !important;
    outline: none !important;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none !important;
    background-color: transparent !important;
    z-index: 10;
    flex-shrink: 0;
    padding: 0;
    margin: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-shadow: none !important;
    -webkit-box-shadow: none !important;
}

.video-arrow img {
    border: 0 !important;
    outline: none !important;
    box-shadow: none !important;
    -webkit-box-shadow: none !important;
    display: block;
    background: transparent;
}

.video-arrow:hover {
    transform: scale(1.1);
    background: none !important;
    background-color: transparent !important;
}

.video-arrow:focus {
    outline: none !important;
    box-shadow: none !important;
}

.video-arrow:active {
    outline: none !important;
    box-shadow: none !important;
    border: 0 !important;
}

.video-container-features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.video-wrapper {
    position: relative;
    background: rgba(0, 0, 0, 0);
    overflow: hidden;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
    min-height: 300px;
    object-fit: cover;
}

.video-frame-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    object-fit: fill;
    z-index: 1;
	transform: scale(1.015);
}

.video-indicators {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 0.5rem;
}

.video-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(61, 69, 108, 1);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    box-sizing: border-box;
}

.video-dot:hover {
    background: rgba(61, 69, 108, 1);
    transform: scale(1.2);
}

.video-dot.active {
    background: #ffca00;
    border-color: #ffca00;
    transform: scale(1.3);
}

.section-title {
    text-align: center;
    font-size: 3rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--primary-blue));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(26, 107, 179, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(26, 107, 179, 0.2);
    border-color: var(--ice-blue);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--primary-blue));
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-blue);
}

.feature-card h3 {
    font-size: 1.8rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.screenshots {
    padding: 6rem 5%;
    background: var(--light-blue);
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.screenshot-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    position: relative;
}

.screenshot-item:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.screenshot-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(13, 74, 138, 0.9));
    color: white;
    padding: 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.screenshot-item:hover .screenshot-overlay {
    transform: translateY(0);
}

.rotating-showcase {
    padding: 0;
    background: url('img/bg2.jpg') center center / cover no-repeat;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.skzl-decoration {
    position: absolute;
    left: 150px;
    top: 110px;
    max-width: 100%;
    height: auto;
    z-index: 2;
    pointer-events: none;
    transform: scale(0.7);
    transform-origin: top left;
}

.rotating-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%231a6bb3' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.3;
    z-index: 0;
}

.rotating-container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.rotating-wrapper {
    position: relative;
    width: 100%;
    min-height: 600px;
    margin-top: 150px;
    margin-bottom: 3rem;
}

.rotating-page {
    position: absolute;
    width: 1079px;
    left: 50%;
    top: 50%;
    padding: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
    border-radius: 0;
    background-color: transparent;
    box-shadow: none;
    line-height: 0;
}

.rotating-page img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    padding: 0;
    border: none;
    line-height: 0;
    font-size: 0;
    vertical-align: top;
}

.rotating-page.active {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
    z-index: 10;
    box-shadow: none;
}

.rotating-page.prev {
    opacity: 0.6;
    pointer-events: auto;
    transform: translate(-105%, -50%) scale(0.6);
    z-index: 5;
}

.rotating-page.next {
    opacity: 0.6;
    pointer-events: auto;
    transform: translate(5%, -50%) scale(0.6);
    z-index: 5;
}

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

.rotating-page h3 {
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.rotating-page p {
    font-size: 1.2rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.page-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    flex: 1;
}

.stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.rotating-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: calc(3rem - 100px);
}

.control-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    background-color: transparent;
    z-index: 20;
    border: 0;
    outline: none;
    padding: 0;
    margin: 0;
    box-shadow: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.control-btn img {
    border: 0;
    outline: none;
    box-shadow: none;
    display: block;
}

.prev-btn {
    transform: translate(-50%, -50%) translateX(calc(-1079px/2 - 40px - 60px));
}

.next-btn {
    transform: translate(-50%, -50%) translateX(calc(1079px/2 + 40px + 60px));
}

.control-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background-color: transparent;
}

.prev-btn:hover {
    transform: translate(-50%, -50%) translateX(calc(-1079px/2 - 40px - 60px)) scale(1.1);
}

.next-btn:hover {
    transform: translate(-50%, -50%) translateX(calc(1079px/2 + 40px + 60px)) scale(1.1);
}

.control-btn:focus {
    outline: none;
    box-shadow: none;
}

.control-btn:active {
    outline: none;
    box-shadow: none;
    border: 0;
}

.page-indicators {
    display: flex;
    gap: 1rem;
}

.page-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(61, 69, 108, 1);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-indicator.active {
    background: #ffca00;
    transform: scale(1.3);
}

.page-indicator:hover {
    transform: scale(1.2);
}

.auto-play-control {
    text-align: center;
    margin-top: 2rem;
}

.auto-play-btn {
    background: rgba(26, 107, 179, 0.1);
    border: 2px solid var(--ice-blue);
    color: var(--primary-blue);
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.auto-play-btn:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

@media (max-width: 1200px) {
    .rotating-page {
        max-width: 90%;
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-90% / 2 - 40px - 55px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(90% / 2 + 40px + 55px));
    }

    .skzl-decoration {
        left: 100px;
        top: 100px;
    }

    .features-title-img {
        left: 80px;
        top: 105px;
    }

    .features-subtitle-img {
        left: 135px;
        top: 260px;
    }

    .features-showcase {
        left: -70px;
        top: 322px;
    }

    .features-social {
        left: 45px;
        bottom: 45px;
    }

    .features-social-text {
        font-size: 28px;
    }

    .features-social-icon {
        max-width: 48px;
        max-height: 48px;
        margin-left: 9px;
    }
}

@media (max-width: 992px) {
    .rotating-wrapper {
        min-height: 500px;
        margin-top: 140px;
    }

    .skzl-decoration {
        left: 50px;
        top: 90px;
        max-width: 60%;
    }

    .rotating-page {
        max-width: 85%;
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-85% / 2 - 40px - 50px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(85% / 2 + 40px + 50px));
    }

    .rotating-page.active {
        transform: translate(-50%, -50%) scale(1);
    }

    .rotating-page.prev {
        transform: translate(-115%, -50%) scale(0.6);
    }

    .rotating-page.next {
        transform: translate(15%, -50%) scale(0.6);
    }

    .page-stats {
        flex-wrap: wrap;
    }

    .stat {
        flex: 0 0 calc(50% - 1rem);
    }

    .features-title-img {
        left: 30px;
        top: 100px;
    }

    .features-subtitle-img {
        left: 75px;
        top: 240px;
    }

    .features-showcase {
        left: -100px;
        top: 257px;
    }

    .features-social {
        left: 40px;
        bottom: 40px;
    }

    .features-social-text {
        font-size: 26px;
    }

    .features-social-icon {
        max-width: 45px;
        max-height: 45px;
        margin-left: 8px;
    }
}

@media (max-width: 576px) {
    .rotating-showcase {
        padding: 4rem 3%;
    }

    .skzl-decoration {
        left: 25px;
        top: 85px;
        max-width: 50%;
    }

    .rotating-wrapper {
        min-height: 450px;
        margin-top: 130px;
    }

    .rotating-page {
        max-width: 95%;
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-95% / 2 - 40px - 45px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(95% / 2 + 40px + 45px));
    }

    .rotating-page.active {
        transform: translate(-50%, -50%) scale(1);
    }

    .rotating-page.prev {
        opacity: 0.3;
        transform: translate(-110%, -50%) scale(0.7);
        pointer-events: none;
    }

    .rotating-page.next {
        opacity: 0.3;
        transform: translate(10%, -50%) scale(0.7);
        pointer-events: none;
    }

    .rotating-page h3 {
        font-size: 1.8rem;
    }

    .visual-placeholder span {
        font-size: 4rem;
    }

    .stat {
        flex: 0 0 100%;
    }

    .features-title-img {
        left: -50px;
        top: 90px;
        max-width: 65%;
    }

    .features-subtitle-img {
        left: -5px;
        top: 210px;
        max-width: 70%;
    }

    .features-showcase {
        left: -150px;
        top: 177px;
    }

    .features-social {
        left: 25px;
        bottom: 25px;
    }

    .features-social-text {
        font-size: 22px;
    }

    .features-social-icon {
        max-width: 38px;
        max-height: 38px;
        margin-left: 6px;
    }

    .control-btn {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-95% / 2 - 40px - 45px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(95% / 2 + 40px + 45px));
    }
}

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

.download h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.download p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    line-height: 1.8;
}

.platform-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.platform-button {
    background: rgba(0, 0, 0, 0);
    color: var(--primary-blue);
    border: none;
    padding: 1.2rem 0rem;
    border-radius: 0px;
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 200px;
    justify-content: center;
}

.platform-icon {
    font-size: 1.8rem;
}

.footer {
    background: var(--dark-blue);
    color: white;
    padding: 4rem 5% 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--ice-blue);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #b3d4ff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

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

.social-link:hover {
    background: var(--accent-cyan);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #b3d4ff;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        background-size: auto 100%;
    }

    .features-showcase {
        padding: 3rem 5%;
        gap: 2rem;
    }

    .features-social {
        left: 30px;
        bottom: 30px;
    }

    .features-social-text {
        font-size: 24px;
    }

    .features-social-icon {
        max-width: 40px;
        max-height: 40px;
        margin-left: 7px;
    }

    .features-title-img {
        left: 0px;
        top: 95px;
        max-width: 70%;
    }

    .features-subtitle-img {
        left: 230px;
        top: 190px;
        max-width: 75%;
    }

    .video-showcase {
        width: 100%;
        max-width: 100%;
    }

    .features-hero-decoration {
        max-width: 60%;
        transform: scale(0.8);
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-85% / 2 - 40px - 48px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(85% / 2 + 40px + 48px));
    }

    .features-title {
        font-size: 2.5rem;
        letter-spacing: 4px;
    }

    .features-subtitle {
        font-size: 1.8rem;
        letter-spacing: 2px;
    }

    .features-description {
        max-width: 100%;
        font-size: 24px;
    }

    .video-showcase {
        width: 100%;
    }

    .video-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .video-wrapper video {
        min-height: 200px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .platform-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .platform-button {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-title-img {
        max-width: 95%;
        max-height: 55vh;
    }
    
    .hero-content {
        transform: translateY(-140px) scale(1.2);
    }
    
    .hero-play-btn img {
        max-width: 80px;
    }
    
    .hero-play-btn {
        top: calc(50% - 108px);
        left: calc(50% - 10px);
        transform: translate(-50%, -50%) scale(1.2);
    }
    
    .hero-qrcode {
        left: 30px;
        bottom: 25px;
    }
    
    .hero-qrcode img {
        max-width: 100px;
    }
    
    .hero-kf-btn {
        top: 400px;
        right: 15px;
    }
    
    .hero-kf-btn img {
        max-width: 65px;
    }
    
    .hero-ljyy-btn {
        bottom: 45px;
        transform: translateX(-50%) scale(1.2);
    }
    
    .hero-ljyy-btn img {
        max-width: 208px;
    }
    
    .hero-download-btns {
        bottom: 35px;
        right: 25px;
        gap: 8px;
    }
    
    .hero-download-btns img {
        max-width: 80px;
    }
    
    .hero-download-btns button {
        transform: scale(1.2);
    }
    
    .hero-download-btns button:nth-child(1),
    .hero-download-btns button:nth-child(3) {
        transform: translateX(-16px) scale(1.2);
    }
    
    .yuyue-container {
        padding: 30px 20px 20px;
    }
    
    .yuyue-title {
        font-size: 2rem;
        margin-bottom: 20px;
    }
    
    .yuyue-input-row {
        padding: 10px 12px;
    }
    
    .yuyue-platform-btn {
        padding: 12px;
        font-size: 1rem;
    }
    
    .yuyue-submit-btn {
        font-size: 1.1rem;
        padding: 14px;
    }
}

@media (max-width: 480px) {
    .navbar {
        background-size: auto 100%;
    }
    
    .hero-title-img {
        max-width: 100%;
        max-height: 45vh;
    }
    
    .hero-content {
        transform: translateY(-110px) scale(1.1);
    }
    
    .hero-play-btn img {
        max-width: 60px;
    }
    
    .hero-play-btn {
        top: calc(50% - 86px);
        left: calc(50% - 8px);
        transform: translate(-50%, -50%) scale(1.1);
    }
    
    .hero-qrcode {
        left: 20px;
        bottom: 20px;
    }
    
    .hero-qrcode img {
        max-width: 80px;
    }
    
    .hero-kf-btn {
        top: 300px;
        right: 10px;
    }
    
    .hero-kf-btn img {
        max-width: 50px;
    }
    
    .hero-ljyy-btn {
        bottom: 35px;
        transform: translateX(-50%) scale(1.1);
    }
    
    .hero-ljyy-btn img {
        max-width: 156px;
    }
    
    .hero-download-btns {
        bottom: 25px;
        right: 15px;
        gap: 6px;
    }
    
    .hero-download-btns img {
        max-width: 60px;
    }
    
    .hero-download-btns button {
        transform: scale(1.1);
    }
    
    .hero-download-btns button:nth-child(1),
    .hero-download-btns button:nth-child(3) {
        transform: translateX(-12px) scale(1.1);
    }

    .features-hero-decoration {
        max-width: 40%;
        transform: scale(0.8);
    }

    .features-social {
        left: 20px;
        bottom: 20px;
    }

    .features-social-text {
        font-size: 20px;
    }

    .features-social-icon {
        max-width: 35px;
        max-height: 35px;
        margin-left: 5px;
    }

    .features-title-img {
        left: -100px;
        top: 85px;
        max-width: 60%;
    }

    .prev-btn {
        transform: translate(-50%, -50%) translateX(calc(-95% / 2 - 40px - 40px));
    }

    .next-btn {
        transform: translate(-50%, -50%) translateX(calc(95% / 2 + 40px + 40px));
    }

    .yuyue-container {
        padding: 25px 15px 15px;
        width: 95%;
    }
    
    .yuyue-title {
        font-size: 1.8rem;
        margin-bottom: 18px;
        letter-spacing: 2px;
    }
    
    .yuyue-input-row {
        padding: 10px;
        gap: 6px;
    }
    
    .yuyue-prefix {
        font-size: 0.9rem;
    }
    
    .yuyue-input {
        font-size: 0.9rem;
    }
    
    .yuyue-code-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    
    .yuyue-platform-btn {
        padding: 10px;
        font-size: 0.95rem;
    }
    
    .yuyue-agreement {
        font-size: 0.75rem;
    }
    
    .yuyue-submit-btn {
        font-size: 1rem;
        padding: 12px;
    }
}

.snowflake {
    position: fixed;
    top: -10px;
    color: white;
    font-size: 1.5rem;
    opacity: 0.8;
    pointer-events: none;
    z-index: 9999;
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

.loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark-blue);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loader {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent-cyan);
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.icon-survival::before { content: "❄️"; }
.icon-world::before { content: "🏔️"; }
.icon-craft::before { content: "⚙️"; }
.icon-multiplayer::before { content: "👥"; }

.icon-apple::before { content: "🍎"; }
.icon-android::before { content: "🤖"; }
.icon-pc::before { content: "💻"; }
.icon-console::before { content: "🎮"; }

.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.video-modal.active {
    display: flex;
}

.video-container {
    position: relative;
    width: 90%;
    max-width: 1200px;
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 0 60px rgba(0, 201, 255, 0.3);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.close-video-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid white;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.close-video-btn:hover {
    background: var(--accent-cyan);
    transform: scale(1.1);
}

.video-title {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}