/* ==========================================================================
   纯原版 Minecraft 26.2 服务器官网样式表
   - 全局严格直角 (零圆角，无任何 border-radius)
   - 彻底去除所有 UI 边线 (无任何 border / outline / 边框线)
   - 全局 UI 统一使用纯白色 (纯白文字、白透明高斯磨砂色块)
   - 强高斯模糊 (Frosted Glass / Gaussian Blur)
   - 纯净无衬线字体 (Sans-Serif)
   ========================================================================== */

/* 全局白色层级定义 */
:root {
    --white-primary: #ffffff;
    --white-90: rgba(255, 255, 255, 0.90);
    --white-75: rgba(255, 255, 255, 0.75);
    --white-50: rgba(255, 255, 255, 0.50);
    --white-30: rgba(255, 255, 255, 0.30);
    --white-18: rgba(255, 255, 255, 0.18);
    --white-10: rgba(255, 255, 255, 0.10);
    --white-06: rgba(255, 255, 255, 0.06);
    --blur-intensity: 24px;
}

/* 基础重置：彻底消除所有边框与圆角，全无衬线字体 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border: none !important;
    border-radius: 0 !important;
    outline: none !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    color: var(--white-primary);
    overflow-x: hidden;
    line-height: 1.6;
    background-color: #0b141a;
}

/* ---------------- 背景全屏展示与高斯模糊 ---------------- */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.bg-image {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background-image: url('background.png');
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    transform: scale(1.02);
}

/* 全局柔和暗调与高斯模糊层 */
.bg-blur-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg, 
        rgba(0, 0, 0, 0.20) 0%, 
        rgba(0, 0, 0, 0.15) 50%, 
        rgba(0, 0, 0, 0.35) 100%
    );
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* ---------------- 通用无边线直角玻璃拟态组件 ---------------- */
.glass-panel {
    background: var(--white-18);
    backdrop-filter: blur(var(--blur-intensity));
    -webkit-backdrop-filter: blur(var(--blur-intensity));
}

.glass-card {
    background: var(--white-10);
    backdrop-filter: blur(var(--blur-intensity));
    -webkit-backdrop-filter: blur(var(--blur-intensity));
    transition: background 0.3s ease, transform 0.25s ease;
}

.glass-card:hover {
    background: var(--white-18);
    transform: translateY(-3px);
}

/* ---------------- 顶部导航栏 (无边线、纯直角) ---------------- */
.navbar-wrapper {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    display: flex;
    justify-content: center;
}

.navbar {
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 32px;
    background: var(--white-10);
    backdrop-filter: blur(var(--blur-intensity));
    -webkit-backdrop-filter: blur(var(--blur-intensity));
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.server-logo-img {
    width: 34px;
    height: 34px;
    object-fit: cover;
    display: block;
}

.logo-title {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--white-primary);
    white-space: nowrap;
}

.logo-tag {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 8px;
    color: var(--white-primary);
    background: var(--white-18);
    letter-spacing: 1px;
    white-space: nowrap;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--white-90);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 6px 10px;
    white-space: nowrap;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
    color: var(--white-primary);
    background: var(--white-18);
}

/* ---------------- 主体内容布局 ---------------- */
.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 32px 100px 32px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* ---------------- Hero 主视觉区 ---------------- */
.hero-section {
    padding: 72px 48px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.hero-icon-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-server-icon {
    width: 88px;
    height: 88px;
    object-fit: cover;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: var(--white-10);
    font-size: 0.85rem;
    color: var(--white-90);
    font-weight: 500;
    letter-spacing: 1px;
}

/* 状态指示块：直角小方块，绝无圆形 */
.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--white-primary);
    box-shadow: 0 0 12px var(--white-primary);
    animation: square-pulse 2s infinite ease-in-out;
}

@keyframes square-pulse {
    0%, 100% { opacity: 0.4; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.15); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--white-primary);
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--white-75);
    max-width: 680px;
    line-height: 1.8;
    font-weight: 400;
}

/* ---------------- 双平台支持卡片区 (纯直角、无边线、纯白磨砂) ---------------- */
.platforms-container {
    width: 100%;
    max-width: 860px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 10px;
}

.platform-ip-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 18px;
    background: var(--white-15);
    text-align: left;
}

.platform-badge {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--white-primary);
    background: var(--white-18);
    padding: 4px 10px;
    align-self: flex-start;
}

.ip-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ip-label {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    color: var(--white-50);
    font-weight: 700;
}

.ip-address {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--white-primary);
    user-select: all;
}

.ip-address-group {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.ip-port-tag {
    font-size: 0.85rem;
    color: var(--white-90);
    background: var(--white-18);
    padding: 2px 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.btn-group {
    display: flex;
    gap: 10px;
}

/* 按钮：直角、无边线、纯白 */
.action-btn {
    background: var(--white-primary);
    color: #0b141a;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: opacity 0.2s ease, background 0.2s ease;
    white-space: nowrap;
    text-align: center;
    flex: 1;
}

.btn-secondary {
    background: var(--white-18);
    color: var(--white-primary);
}

.action-btn:hover {
    opacity: 0.85;
}

.action-btn:active {
    opacity: 0.7;
}

/* ---------------- 特色板块 (直角无边线卡片) ---------------- */
.section {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.section-header {
    text-align: center;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--white-primary);
}

.section-header p {
    font-size: 1rem;
    color: var(--white-75);
    margin-top: 8px;
    letter-spacing: 0.5px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    padding: 34px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.card-number {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--white-30);
    letter-spacing: 2px;
}

.card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white-primary);
    letter-spacing: 1px;
}

.card p {
    font-size: 0.95rem;
    color: var(--white-75);
    line-height: 1.7;
}

/* ---------------- 双列信息栏 (如何加入与规则) ---------------- */
.dual-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.dual-section .glass-card {
    padding: 40px 34px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.dual-section h3 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--white-primary);
    padding-bottom: 12px;
    /* 去除所有底边线，用半透明背景衬底代替 */
    background: var(--white-06);
    padding: 12px 16px;
}

.guide-tabs {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.guide-block {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--white-06);
    padding: 16px;
}

.guide-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white-primary);
    letter-spacing: 0.5px;
}

.step-list, .rule-list {
    padding-left: 20px;
    color: var(--white-90);
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 0.92rem;
    line-height: 1.65;
}

.step-list code {
    background: var(--white-18);
    padding: 2px 8px;
    font-size: 0.9em;
    font-weight: 600;
}

.step-list strong {
    color: var(--white-primary);
}

/* ---------------- 页脚 ---------------- */
.footer {
    text-align: center;
    padding: 50px 20px;
    color: var(--white-50);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--white-06);
    backdrop-filter: blur(var(--blur-intensity));
    -webkit-backdrop-filter: blur(var(--blur-intensity));
}

.sub-footer {
    font-size: 0.72rem;
    letter-spacing: 1px;
    color: var(--white-30);
}

/* ---------------- Toast 提示 (直角、无边线、纯白) ---------------- */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--white-primary);
    color: #0b141a;
    padding: 14px 28px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 1px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
    z-index: 999;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ---------------- 移动端全面响应式适配 ---------------- */
@media (max-width: 860px) {
    .navbar-wrapper {
        padding: 0;
    }

    .navbar {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 12px 14px;
        width: 100%;
    }

    .logo {
        width: 100%;
        justify-content: center;
        gap: 8px;
    }

    .server-logo-img {
        width: 28px;
        height: 28px;
    }

    .logo-title {
        font-size: 1.05rem;
        letter-spacing: 1px;
    }

    .logo-tag {
        font-size: 0.7rem;
        padding: 2px 6px;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 6px;
        padding: 4px 0 2px 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-links a {
        font-size: 0.82rem;
        padding: 4px 8px;
        letter-spacing: 0.5px;
    }

    .content-wrapper {
        padding: 20px 14px 70px 14px;
        gap: 28px;
    }

    .hero-section {
        padding: 38px 16px;
        gap: 18px;
    }

    .hero-server-icon {
        width: 72px;
        height: 72px;
    }

    .hero-title {
        font-size: 1.8rem;
        letter-spacing: 1.5px;
        word-break: break-word;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .platforms-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .platform-ip-card {
        padding: 18px 16px;
        gap: 14px;
    }

    .ip-address {
        font-size: 1.15rem;
    }

    .dual-section {
        grid-template-columns: 1fr;
    }

    .dual-section .glass-card {
        padding: 28px 18px;
    }
}

@media (max-width: 420px) {
    .logo-title {
        font-size: 0.95rem;
        letter-spacing: 0.5px;
    }

    .hero-title {
        font-size: 1.55rem;
    }

    .btn-group {
        flex-direction: column;
    }
}