@font-face {
    font-family: "MiSans";
    src: url("/font/MiSans-VF.ttf") format("truetype-variations");
    font-weight: 300 1000;
}

:root {
    --glass-blur: 20px;
    --glass-bg: #000000aa;
    --glass-border: #aaaaaa50;
    --glass-radius: 8px;
    --font-size: 20px;
    --font-family: "MiSans", sans-serif;
    --text-color: #eee;
    --hover-color: #aaaaaa33;
    --header-height: 100px;
    --container-padding: 10%;
    --primary-color: #eee;
    --secondary-color: #eee;
    --transition-speed: 0.3s;
    --box-shadow: 0 4px 16px #00000033;
    --header-gradient: linear-gradient(#000000aa);
    --btn-gradient: linear-gradient(#101015aa);
}

body {
    background-color: #050505;
    text-align: center;
    font-family: var(--font-family);
    color: var(--text-color);
    font-weight: 500;
    margin: 0;
    padding: 0;
}

/* 开场动画 */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    opacity: 1;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
}

.page-transition.fade-out {
    opacity: 0;
}

.page-transition.fade-in {
    opacity: 1;
}

h1 {
    color: var(--primary-color);
    font-family: var(--font-family);
    font-size: 50px;
    font-weight: 1000;
    margin: 36px 0;
}

h2 {
    color: var(--primary-color);
    font-family: var(--font-family);
    font-size: 40px;
    font-weight: 800;
    margin: 32px 0;
}

p {
    color: var(--secondary-color);
    line-height: 1.6;
    font-weight: 500;
}

/* header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    backdrop-filter: blur(var(--glass-blur));
    background: var(--header-gradient);
    height: var(--header-height);
    z-index: 1000;
    box-shadow: 0 4px 16px #00000033;
    align-items: center;
    justify-content: space-between;
    transition: height var(--transition-speed);
}

.header .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

/* logo */
.nav-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    transform: scale(1);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    width: 55px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

/* 导航栏 */
.nav-center {
    flex-grow: 1;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    height: 100%;
    margin-left: 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size);
    height: 100%;
    margin: 0;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.1s ease;
    position: relative;
    font-weight: 400;
    text-align: center;
    min-width: auto;
    display: inline-block;
}

.nav-links a:hover {
    text-decoration: none;
    font-weight: 700;
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 12px;
    left: 10px;
    background-color: var(--glass-bg);
    border-radius: var(--glass-radius);
    padding: 10px 0;
    flex-direction: column;
    min-width: 150px;
    box-shadow: 0 4px 16px #00000033;
    backdrop-filter: blur(var(--glass-blur));
}

.dropdown-content a {
    display: block;
    padding: 8px 20px;
    color: var(--text-color);
    text-align: left;
    text-decoration: none;
}

.dropdown:hover .dropdown-content {
    display: flex;
}

/* 导航覆盖层样式 */
.overlay-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000000aa;
    backdrop-filter: blur(30px);
    z-index: 2000;
    padding: 40px 20px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s ease;
    transform: scale(1.1);
}

.overlay-nav.show {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.overlay-nav .nav-links {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease-out;
}

.overlay-nav.show .nav-links {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.2s;
}

.overlay-nav .dropdown-content {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease-out;
    position: static;
    display: none;
    background: none;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    padding-left: 20px;
    margin-top: 0;
    margin-bottom: 0;
}

.overlay-nav.show .dropdown-content {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.3s;
}

/* 导航覆盖层 */
.overlay-nav .nav-links {
    padding-left: 85px;
    margin-top: 80px;
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
    width: 100%;
    max-width: 300px;
    font-size: var(--font-size);
}

.overlay-nav .nav-links a {
    font-weight: 400;
    transition: all 0.3s ease, font-weight 0.1s ease;
    min-width: 300px;
    text-align: left;
}

.overlay-nav .nav-links a:hover {
    font-weight: 700;
}

.overlay-nav .dropdown-content {
    position: static;
    display: flex;
    background: transparent;
    border: none;
    box-shadow: none;
    padding-left: 50px;
    margin-top: 10px;
    margin-bottom: 0;
    font-size: var(--font-size);
}

.overlay-nav .dropdown > a {
    color: var(--text-color);
    font-weight: 400;
}

/* 页眉导航栏的下拉菜单保持默认隐藏 */
#header-nav .dropdown-content {
    display: none;
}

#header-nav .dropdown:hover .dropdown-content {
    display: flex;
}

.close-btn {
    position: absolute;
    top: 30px;
    left: 100px;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 50px;
    cursor: pointer;
    padding: 10px;
    transition: transform 0.3s ease;
}

.close-btn:hover {
    transform: rotate(90deg);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    transform: scale(1.1);
    color: var(--primary-color);
}

/* 社交媒体图标和支持按钮 */
.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-socials {
    display: flex;
    gap: 20px;
    align-items: center;
}

.header-socials a {
    font-size: 20px;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.header-socials a:hover {
    color: #aaa;
}

.support-btn {
    background: var(--btn-gradient);
    color: var(--text-color);
    border: 0px solid var(--glass-border);
    border-radius: var(--glass-radius);
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s;
}

.support-btn:hover {
    background: #aaaaaa50;
}

/* 封面模块 */
.hero {
    position: relative;
    min-height: 700px;
    height: auto;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    width: 100%;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 50px;
    margin-bottom: 16px;
    color: var(--text-color);
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.hero-content a {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.hero-content-link a {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.hero-content-link a:hover {
    font-weight: 700;
}

.hero-social-links {
    margin-bottom: 24px;
    z-index: 2;
}

.hero-social-links a {
    color: #eeeeee;
    font-size: 1.5rem;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
    z-index: 2;
}

.hero-social-links a:hover {
    color: #aaa;
    z-index: 2;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap; 
    gap: 16px;
    justify-content: center;
    width: 100%; 
    margin: 0 auto;
}

.hero-btn {
    padding: 14px 24px;
    border-radius: var(--glass-radius);
    font-size: 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: nowrap; 
    min-width: auto; 
    flex: 0 1 auto; 
    margin-bottom: 20px
}

.hero-btn.primary {
    background: #101015aa;
    backdrop-filter: blur(var(--glass-blur));
    color: #eee;
}

.hero-btn:hover {
    background: #0a0a0faa;
}

.hero-image {
    max-width: 450px;
    width: 100%;
    height: auto;
    margin: 0 auto 12px;
    display: block;
}

/* 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-color);
    font-weight: 300;
    opacity: 0.7;
    font-size: 16px;
    animation: bounce 2s infinite;
    z-index: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 幻灯片 */
.slideshow {
    position: relative;
    width: 100%;
    margin: 0 auto 32px;
    border-radius: 10px;
    overflow: hidden;
}

.slides {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #00000033;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide.active {
    opacity: 1;
}

.slide img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slideshow-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slideshow-btn {
    background: var(--btn-gradient);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    backdrop-filter: blur(var(--glass-blur));
    width: 40px;
    height: 40px;
    border-radius: var(--glass-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.slideshow:hover .slideshow-controls {
    opacity: 1;
}

.slideshow-dots {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ffffff4d;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--text-color);
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    right: 50px;
    bottom: 100px;
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    color: var(--text-color);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(var(--glass-blur));
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--hover-color);
}

/* 404页面倒计时文本 */
.countdown-text {
    margin: 20px 0;
    font-size: 18px;
    color: var(--text-color);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .header {
        min-height: var(--header-height);
    }

    .header .container {
        padding: 0 var(--container-padding);
    }

    .nav-center {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(var(--glass-blur));
        padding: 15px;
        box-shadow: var(--box-shadow);
        margin-left: 0;
    }

    .nav-center.show {
        display: block;
    }

    #header-nav, .nav-links {
        flex-direction: column;
        align-items: start;
        height: auto;
        width: 100%;
    }

    .dropdown-content {
        position: static;
        background: transparent;
        box-shadow: none;
        border: none;
        padding-left: 20px;
    }

    .nav-links {
        margin: 0;
    }

    .nav-toggle {
        display: block;
    }
}

@media (max-width: 500px) {
    .support-btn {
        display: none;
    }

    .scroll-hint {
        display: none;
    }
}

/* footer */
.footer {
    background: linear-gradient(#000);
    padding: 50px 0 100px;
}

.footer-top {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-socials {
    display: flex;
    gap: 20px;
}

.footer-socials a {
    color: #555;
    font-size: 20px;
    transition: all 0.3s ease;
}

.footer-socials a:hover {
    color: #eee;
}

.footer-socials-mobile {
    margin-top: 12px;
    margin-bottom: 24px;
    padding: 15px 0;
    display: none;
    justify-content: center;
}

.footer-socials-mobile-btn {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.footer-socials-mobile-btn a {
    color: #555;
    font-size: 20px;
    transition: all 0.3s ease;
}

.footer-socials-mobile-btn a:hover {
    color: #eee;
}

@media (max-width: 500px) {
    .footer-socials {
        display: none;
    }

    .footer-socials-mobile {
        display: flex;
    }

    .footer-bottom {
        margin-top: -32px;
        padding: 0 0;
    }
}

.footer-bottom {
    padding: 15px 0;
}

.footer-text {
    display: block;
    font-size: 14px;
    font-weight: 300;
}

.footer-text p {
    color: #555;
    font-size: 14px;
    text-decoration: none;
}

.footer-text a {
    color: #555;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-text a:hover {
    color: #eee;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.footer-text-mobile {
    display: none;
    font-size: 14px;
    font-weight: 300;
}

.footer-text-mobile p {
    color: #555;
    font-size: 14px;
    text-decoration: none;
}


.footer-text-mobile a {
    color: #555;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-text-mobile a:hover {
    color: #eee;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

@media (max-width: 500px) {
    .footer-text{
        display: none;
    }
    
    .footer-text-mobile {
        display: block;
    }
}

.footer-nav-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s ease;
}

.footer-nav-btn:hover {
    transform: scale(1.1);
    color: var(--primary-color);
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-nav {
    max-width: 1800px;
    margin-top: 20px;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-nav-links {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 20px;
}

.footer-nav-links a {
    color: #555;
    text-decoration: none;
    font-size: 14px;
    text-align: left;
    transition: all 0.3s ease;
}

.footer-nav-links a:hover {
    color: #eee;
    font-weight: 700;
    text-decoration: none;
}

@media (max-width: 500px) {

    .footer-nav-links {
        flex-wrap: wrap;
    }

    .footer-nav-links a {
        flex: 1 1 500px;
        word-break: break-word;
    }
}